From 103302b3752609e28cb6ba4f706a6f6e49ffef68 Mon Sep 17 00:00:00 2001
From: Jean-Marc Valin <jean-marc.valin@octasic.com>
Date: Thu, 19 May 2011 17:17:44 -0400
Subject: [PATCH] Squashed commit of the following:

commit 5b64cf7c4d67af9050bc959996ef976ce6326888
Author: Jean-Marc Valin <jean-marc.valin@octasic.com>
Date:   Thu May 19 16:40:35 2011 -0400

    Fixes a few bugs introduced in the latest update

commit b91eb86025d2de3c4cf04f4fb1aa48a28ad676a3
Author: Timothy B. Terriberry <tterribe@xiph.org>
Date:   Thu May 19 16:12:02 2011 -0400

    build_draft.sh fixes

commit 0b10c30db7ad60ff7d4bfc1139bdb86e0543c035
Author: Jean-Marc Valin <jean-marc.valin@octasic.com>
Date:   Thu May 19 15:30:21 2011 -0400

    Fixes the draft build

commit 164424cded5978e657105104e171ac202dde5e5b
Author: Jean-Marc Valin <jean-marc.valin@octasic.com>
Date:   Thu May 19 15:00:23 2011 -0400

    Updated build system

commit 188d9fcba8c3a1b1ad67c67c430e1b37e3658a40
Author: Koen Vos <koen.vos@skype.net>
Date:   Thu May 19 17:14:57 2011 -0400

    SILK/Opus update
---
 doc/build_draft.sh                            |  11 +-
 libcelt/celt_header.h                         |  66 ----
 libcelt/libcelt.vcxproj                       |   2 -
 libcelt/libcelt.vcxproj.filters               |   6 -
 opus.sln                                      |  18 +
 silk/SKP_Silk_stereo_LR_to_MS.c               | 107 ------
 silk/SKP_Silk_tables.h                        | 117 -------
 ...r_FIX.c => silk_LTP_analysis_filter_FIX.c} |   4 +-
 ...e_ctrl_FIX.c => silk_LTP_scale_ctrl_FIX.c} |  14 +-
 ...corrMatrix_FIX.c => silk_corrMatrix_FIX.c} |  14 +-
 ...de_frame_FIX.c => silk_encode_frame_FIX.c} | 102 +++---
 ...ilk_find_LPC_FIX.c => silk_find_LPC_FIX.c} |  32 +-
 ...ilk_find_LTP_FIX.c => silk_find_LTP_FIX.c} |  52 +--
 ..._lags_FIX.c => silk_find_pitch_lags_FIX.c} |  40 +--
 ...coefs_FIX.c => silk_find_pred_coefs_FIX.c} |  26 +-
 silk/fixed/silk_fixed.vcxproj                 |  38 ++-
 silk/fixed/silk_fixed.vcxproj.filters         |  42 ++-
 .../{SKP_Silk_main_FIX.h => silk_main_FIX.h}  | 105 +++---
 ..._FIX.c => silk_noise_shape_analysis_FIX.c} | 176 +++++-----
 ...k_prefilter_FIX.c => silk_prefilter_FIX.c} |  34 +-
 ...s_gains_FIX.c => silk_process_gains_FIX.c} |  44 +--
 ...X.c => silk_regularize_correlations_FIX.c} |   4 +-
 ...y16_FIX.c => silk_residual_energy16_FIX.c} |   8 +-
 ...nergy_FIX.c => silk_residual_energy_FIX.c} |  14 +-
 ...ilk_solve_LS_FIX.c => silk_solve_LS_FIX.c} |  34 +-
 ..._Silk_structs_FIX.h => silk_structs_FIX.h} |  36 +-
 ...IX.c => silk_warped_autocorrelation_FIX.c} |   6 +-
 ...r_FLP.c => silk_LPC_analysis_filter_FLP.c} |  28 +-
 ...ain_FLP.c => silk_LPC_inv_pred_gain_FLP.c} |  18 +-
 ...r_FLP.c => silk_LTP_analysis_filter_FLP.c} |   4 +-
 ...e_ctrl_FLP.c => silk_LTP_scale_ctrl_FLP.c} |  12 +-
 ..._Silk_SigProc_FLP.h => silk_SigProc_FLP.h} |  64 ++--
 ...dow_FLP.c => silk_apply_sine_window_FLP.c} |   4 +-
 ...ation_FLP.c => silk_autocorrelation_FLP.c} |   8 +-
 ...odified_FLP.c => silk_burg_modified_FLP.c} |  28 +-
 ...bwexpander_FLP.c => silk_bwexpander_FLP.c} |   4 +-
 ...corrMatrix_FLP.c => silk_corrMatrix_FLP.c} |  12 +-
 ...de_frame_FLP.c => silk_encode_frame_FLP.c} |  96 +++---
 ...KP_Silk_energy_FLP.c => silk_energy_FLP.c} |   4 +-
 ...ilk_find_LPC_FLP.c => silk_find_LPC_FLP.c} |  30 +-
 ...ilk_find_LTP_FLP.c => silk_find_LTP_FLP.c} |  22 +-
 ..._lags_FLP.c => silk_find_pitch_lags_FLP.c} |  26 +-
 ...coefs_FLP.c => silk_find_pred_coefs_FLP.c} |  24 +-
 silk/float/silk_float.vcxproj                 |  68 ++--
 silk/float/silk_float.vcxproj.filters         |  80 ++---
 ...product_FLP.c => silk_inner_product_FLP.c} |   4 +-
 .../{SKP_Silk_k2a_FLP.c => silk_k2a_FLP.c}    |  15 +-
 ...durbin_FLP.c => silk_levinsondurbin_FLP.c} |   4 +-
 .../{SKP_Silk_main_FLP.h => silk_main_FLP.h}  | 132 ++++----
 ..._FLP.c => silk_noise_shape_analysis_FLP.c} |  38 +--
 ...e_FLP.c => silk_pitch_analysis_core_FLP.c} |  87 +++--
 ...k_prefilter_FLP.c => silk_prefilter_FLP.c} |  30 +-
 ...s_gains_FLP.c => silk_process_gains_FLP.c} |  18 +-
 ...P.c => silk_regularize_correlations_FLP.c} |   4 +-
 ...nergy_FLP.c => silk_residual_energy_FLP.c} |  22 +-
 ...tor_FLP.c => silk_scale_copy_vector_FLP.c} |   4 +-
 ...e_vector_FLP.c => silk_scale_vector_FLP.c} |   4 +-
 ...{SKP_Silk_schur_FLP.c => silk_schur_FLP.c} |  15 +-
 ...ilk_solve_LS_FLP.c => silk_solve_LS_FLP.c} |  24 +-
 .../{SKP_Silk_sort_FLP.c => silk_sort_FLP.c}  |  26 +-
 ..._Silk_structs_FLP.h => silk_structs_FLP.h} |  37 ++-
 ...LP.c => silk_warped_autocorrelation_FLP.c} |   4 +-
 ...ilk_wrappers_FLP.c => silk_wrappers_FLP.c} |  34 +-
 silk/{SKP_Silk_A2NLSF.c => silk_A2NLSF.c}     |  59 ++--
 silk/{SKP_Silk_SDK_API.h => silk_API.h}       |  49 ++-
 silk/{SKP_Silk_CNG.c => silk_CNG.c}           |  26 +-
 ...ble_cutoff.c => silk_HP_variable_cutoff.c} |  83 +++--
 silk/{SKP_Silk_Inlines.h => silk_Inlines.h}   |  63 +---
 ...is_filter.c => silk_LPC_analysis_filter.c} |   4 +-
 ...v_pred_gain.c => silk_LPC_inv_pred_gain.c} |  30 +-
 ...k_LPC_stabilize.c => silk_LPC_stabilize.c} |  18 +-
 ...s_filter.c => silk_LPC_synthesis_filter.c} |   6 +-
 ...order16.c => silk_LPC_synthesis_order16.c} |   6 +-
 ...ble_cutoff.c => silk_LP_variable_cutoff.c} |  44 +--
 ...KP_Silk_MacroCount.h => silk_MacroCount.h} |   0
 ...KP_Silk_MacroDebug.h => silk_MacroDebug.h} |   0
 silk/{SKP_Silk_NLSF2A.c => silk_NLSF2A.c}     |  25 +-
 ...k_NLSF2A_stable.c => silk_NLSF2A_stable.c} |  10 +-
 silk/{SKP_Silk_NLSF_VQ.c => silk_NLSF_VQ.c}   |   4 +-
 ...laroia.c => silk_NLSF_VQ_weights_laroia.c} |   4 +-
 ..._Silk_NLSF_decode.c => silk_NLSF_decode.c} |  22 +-
 ..._dec_quant.c => silk_NLSF_del_dec_quant.c} |  16 +-
 ..._Silk_NLSF_encode.c => silk_NLSF_encode.c} |  34 +-
 ...NLSF_stabilize.c => silk_NLSF_stabilize.c} |   6 +-
 ..._Silk_NLSF_unpack.c => silk_NLSF_unpack.c} |   6 +-
 silk/{SKP_Silk_NSQ.c => silk_NSQ.c}           |  42 +--
 ..._Silk_NSQ_del_dec.c => silk_NSQ_del_dec.c} |  40 +--
 silk/{SKP_Silk_PLC.c => silk_PLC.c}           |  60 ++--
 silk/{SKP_Silk_PLC.h => silk_PLC.h}           |  34 +-
 ..._Silk_SigProc_FIX.h => silk_SigProc_FIX.h} | 155 ++++-----
 silk/{SKP_Silk_VAD.c => silk_VAD.c}           |  44 +--
 ...KP_Silk_VQ_WMat_EC.c => silk_VQ_WMat_EC.c} |   4 +-
 ...a_filt_bank_1.c => silk_ana_filt_bank_1.c} |  12 +-
 ...sine_window.c => silk_apply_sine_window.c} |   4 +-
 ...ilk_array_maxabs.c => silk_array_maxabs.c} |  13 +-
 silk/{SKP_Silk_autocorr.c => silk_autocorr.c} |  12 +-
 ...KP_Silk_biquad_alt.c => silk_biquad_alt.c} |   6 +-
 ...k_burg_modified.c => silk_burg_modified.c} |  40 +--
 ...KP_Silk_bwexpander.c => silk_bwexpander.c} |   4 +-
 ...k_bwexpander_32.c => silk_bwexpander_32.c} |   4 +-
 ...rol_input.c => silk_check_control_input.c} |  36 +-
 ...KP_Silk_code_signs.c => silk_code_signs.c} |  10 +-
 silk/silk_common.vcxproj                      | 234 ++++++-------
 silk/silk_common.vcxproj.filters              | 314 +++++++++---------
 silk/{SKP_Silk_control.h => silk_control.h}   |  33 +-
 ..._Silk_control_SNR.c => silk_control_SNR.c} |  25 +-
 ...width.c => silk_control_audio_bandwidth.c} |   8 +-
 ...k_control_codec.c => silk_control_codec.c} | 194 ++++++-----
 ...t_destroy.c => silk_create_init_destroy.c} |  12 +-
 silk/{SKP_Silk_debug.c => silk_debug.c}       | 119 +++----
 silk/{SKP_debug.h => silk_debug.h}            | 170 +++++-----
 silk/{SKP_Silk_dec_API.c => silk_dec_API.c}   | 201 +++++------
 ..._Silk_decode_core.c => silk_decode_core.c} |  18 +-
 ...ilk_decode_frame.c => silk_decode_frame.c} |  26 +-
 ...decode_indices.c => silk_decode_indices.c} |  38 +--
 ..._parameters.c => silk_decode_parameters.c} |  26 +-
 ...ilk_decode_pitch.c => silk_decode_pitch.c} |  14 +-
 ...k_decode_pulses.c => silk_decode_pulses.c} |  16 +-
 ...decoder_set_fs.c => silk_decoder_set_fs.c} |  24 +-
 silk/{SKP_Silk_define.h => silk_define.h}     |  25 +-
 silk/{SKP_Silk_enc_API.c => silk_enc_API.c}   | 253 +++++++-------
 ...encode_indices.c => silk_encode_indices.c} |  38 +--
 ...k_encode_pulses.c => silk_encode_pulses.c} |  34 +-
 silk/{SKP_Silk_errors.h => silk_errors.h}     |  36 +-
 ...KP_Silk_gain_quant.c => silk_gain_quant.c} |  13 +-
 ...ilk_init_encoder.c => silk_init_encoder.c} |  25 +-
 ...od_aligned.c => silk_inner_prod_aligned.c} |   8 +-
 ..._Silk_interpolate.c => silk_interpolate.c} |   4 +-
 silk/{SKP_Silk_k2a.c => silk_k2a.c}           |   6 +-
 silk/{SKP_Silk_k2a_Q16.c => silk_k2a_Q16.c}   |   6 +-
 silk/{SKP_Silk_lin2log.c => silk_lin2log.c}   |   6 +-
 silk/{SKP_Silk_log2lin.c => silk_log2lin.c}   |   6 +-
 silk/{SKP_Silk_macros.h => silk_macros.h}     |  14 +-
 silk/{SKP_Silk_main.h => silk_main.h}         | 206 ++++++------
 ...ysis_core.c => silk_pitch_analysis_core.c} | 140 ++++----
 ...est_defines.h => silk_pitch_est_defines.h} |  20 +-
 ...h_est_tables.c => silk_pitch_est_tables.c} |  18 +-
 ...k_process_NLSFs.c => silk_process_NLSFs.c} |  26 +-
 ...ant_LTP_gains.c => silk_quant_LTP_gains.c} |  16 +-
 ...{SKP_Silk_resampler.c => silk_resampler.c} |  97 +++---
 ...sampler_down2.c => silk_resampler_down2.c} |  22 +-
 ...ler_down2_3.c => silk_resampler_down2_3.c} |  34 +-
 ...sampler_down3.c => silk_resampler_down3.c} |  24 +-
 ...ler_private.h => silk_resampler_private.h} |  40 +--
 ...ate_AR2.c => silk_resampler_private_AR2.c} |  14 +-
 ...ARMA4.c => silk_resampler_private_ARMA4.c} |  15 +-
 ...FIR.c => silk_resampler_private_IIR_FIR.c} |  34 +-
 ...e_copy.c => silk_resampler_private_copy.c} |  15 +-
 ...down4.c => silk_resampler_private_down4.c} |  22 +-
 ...IR.c => silk_resampler_private_down_FIR.c} |  30 +-
 ...2_HQ.c => silk_resampler_private_up2_HQ.c} |  44 +--
 ...ate_up4.c => silk_resampler_private_up4.c} |  14 +-
 ...k_resampler_rom.c => silk_resampler_rom.c} |  57 ++--
 ...k_resampler_rom.h => silk_resampler_rom.h} |  50 +--
 ...ler_structs.h => silk_resampler_structs.h} |  30 +-
 ...k_resampler_up2.c => silk_resampler_up2.c} |  22 +-
 ..._vector16.c => silk_scale_copy_vector16.c} |   4 +-
 ...ilk_scale_vector.c => silk_scale_vector.c} |   4 +-
 silk/{SKP_Silk_schur.c => silk_schur.c}       |  16 +-
 silk/{SKP_Silk_schur64.c => silk_schur64.c}   |   8 +-
 ..._Silk_shell_coder.c => silk_shell_coder.c} |  70 ++--
 silk/{SKP_Silk_sigm_Q15.c => silk_sigm_Q15.c} |  18 +-
 silk/{SKP_Silk_sort.c => silk_sort.c}         |  48 +--
 silk/silk_stereo_LR_to_MS.c                   | 177 ++++++++++
 ...ereo_MS_to_LR.c => silk_stereo_MS_to_LR.c} |  41 ++-
 ...ecode_pred.c => silk_stereo_decode_pred.c} |  30 +-
 silk/silk_stereo_encode_pred.c                |  51 +++
 ...edictor.c => silk_stereo_find_predictor.c} |  45 ++-
 ...encode_pred.c => silk_stereo_quant_pred.c} |  38 +--
 silk/{SKP_Silk_structs.h => silk_structs.h}   |  94 +++---
 ...k_sum_sqr_shift.c => silk_sum_sqr_shift.c} |   4 +-
 ...k_LSF_cos_table.c => silk_table_LSF_cos.c} |   7 +-
 silk/silk_tables.h                            | 120 +++++++
 ...KP_Silk_tables_LTP.c => silk_tables_LTP.c} |  50 +--
 ...CB_NB_MB.c => silk_tables_NLSF_CB_NB_MB.c} |  36 +-
 ..._NLSF_CB_WB.c => silk_tables_NLSF_CB_WB.c} |  36 +-
 ..._Silk_tables_gain.c => silk_tables_gain.c} |   6 +-
 ...ilk_tables_other.c => silk_tables_other.c} |  64 ++--
 ...es_pitch_lag.c => silk_tables_pitch_lag.c} |  14 +-
 ...block.c => silk_tables_pulses_per_block.c} |  24 +-
 ..._parameters.h => silk_tuning_parameters.h} |  33 +-
 silk/{SKP_Silk_typedef.h => silk_typedef.h}   |   4 +-
 silk_headers.txt                              |  50 +--
 silk_sources.mk                               | 287 ++++++++--------
 src/opus.h                                    |   5 +
 src/opus.vcxproj                              |   2 +-
 src/opus.vcxproj.filters                      |   4 +-
 src/opus_decoder.c                            |  23 +-
 src/opus_decoder.h                            |   5 +-
 src/opus_encoder.c                            | 105 ++++--
 src/opus_encoder.h                            |  20 +-
 src/test_opus.c                               |  15 +-
 192 files changed, 3849 insertions(+), 3866 deletions(-)
 delete mode 100644 libcelt/celt_header.h
 delete mode 100644 silk/SKP_Silk_stereo_LR_to_MS.c
 delete mode 100644 silk/SKP_Silk_tables.h
 rename silk/fixed/{SKP_Silk_LTP_analysis_filter_FIX.c => silk_LTP_analysis_filter_FIX.c} (96%)
 rename silk/fixed/{SKP_Silk_LTP_scale_ctrl_FIX.c => silk_LTP_scale_ctrl_FIX.c} (82%)
 rename silk/fixed/{SKP_Silk_corrMatrix_FIX.c => silk_corrMatrix_FIX.c} (93%)
 rename silk/fixed/{SKP_Silk_encode_frame_FIX.c => silk_encode_frame_FIX.c} (80%)
 rename silk/fixed/{SKP_Silk_find_LPC_FIX.c => silk_find_LPC_FIX.c} (81%)
 rename silk/fixed/{SKP_Silk_find_LTP_FIX.c => silk_find_LTP_FIX.c} (81%)
 rename silk/fixed/{SKP_Silk_find_pitch_lags_FIX.c => silk_find_pitch_lags_FIX.c} (74%)
 rename silk/fixed/{SKP_Silk_find_pred_coefs_FIX.c => silk_find_pred_coefs_FIX.c} (82%)
 rename silk/fixed/{SKP_Silk_main_FIX.h => silk_main_FIX.h} (83%)
 rename silk/fixed/{SKP_Silk_noise_shape_analysis_FIX.c => silk_noise_shape_analysis_FIX.c} (65%)
 rename silk/fixed/{SKP_Silk_prefilter_FIX.c => silk_prefilter_FIX.c} (88%)
 rename silk/fixed/{SKP_Silk_process_gains_FIX.c => silk_process_gains_FIX.c} (67%)
 rename silk/fixed/{SKP_Silk_regularize_correlations_FIX.c => silk_regularize_correlations_FIX.c} (95%)
 rename silk/fixed/{SKP_Silk_residual_energy16_FIX.c => silk_residual_energy16_FIX.c} (92%)
 rename silk/fixed/{SKP_Silk_residual_energy_FIX.c => silk_residual_energy_FIX.c} (88%)
 rename silk/fixed/{SKP_Silk_solve_LS_FIX.c => silk_solve_LS_FIX.c} (89%)
 rename silk/fixed/{SKP_Silk_structs_FIX.h => silk_structs_FIX.h} (78%)
 rename silk/fixed/{SKP_Silk_warped_autocorrelation_FIX.c => silk_warped_autocorrelation_FIX.c} (95%)
 rename silk/float/{SKP_Silk_LPC_analysis_filter_FLP.c => silk_LPC_analysis_filter_FLP.c} (91%)
 rename silk/float/{SKP_Silk_LPC_inv_pred_gain_FLP.c => silk_LPC_inv_pred_gain_FLP.c} (76%)
 rename silk/float/{SKP_Silk_LTP_analysis_filter_FLP.c => silk_LTP_analysis_filter_FLP.c} (96%)
 rename silk/float/{SKP_Silk_LTP_scale_ctrl_FLP.c => silk_LTP_scale_ctrl_FLP.c} (83%)
 rename silk/float/{SKP_Silk_SigProc_FLP.h => silk_SigProc_FLP.h} (84%)
 rename silk/float/{SKP_Silk_apply_sine_window_FLP.c => silk_apply_sine_window_FLP.c} (96%)
 rename silk/float/{SKP_Silk_autocorrelation_FLP.c => silk_autocorrelation_FLP.c} (90%)
 rename silk/float/{SKP_Silk_burg_modified_FLP.c => silk_burg_modified_FLP.c} (80%)
 rename silk/float/{SKP_Silk_bwexpander_FLP.c => silk_bwexpander_FLP.c} (95%)
 rename silk/float/{SKP_Silk_corrMatrix_FLP.c => silk_corrMatrix_FLP.c} (92%)
 rename silk/float/{SKP_Silk_encode_frame_FLP.c => silk_encode_frame_FLP.c} (78%)
 rename silk/float/{SKP_Silk_energy_FLP.c => silk_energy_FLP.c} (95%)
 rename silk/float/{SKP_Silk_find_LPC_FLP.c => silk_find_LPC_FLP.c} (80%)
 rename silk/float/{SKP_Silk_find_LTP_FLP.c => silk_find_LTP_FLP.c} (85%)
 rename silk/float/{SKP_Silk_find_pitch_lags_FLP.c => silk_find_pitch_lags_FLP.c} (82%)
 rename silk/float/{SKP_Silk_find_pred_coefs_FLP.c => silk_find_pred_coefs_FLP.c} (82%)
 rename silk/float/{SKP_Silk_inner_product_FLP.c => silk_inner_product_FLP.c} (94%)
 rename silk/float/{SKP_Silk_k2a_FLP.c => silk_k2a_FLP.c} (74%)
 rename silk/float/{SKP_Silk_levinsondurbin_FLP.c => silk_levinsondurbin_FLP.c} (93%)
 rename silk/float/{SKP_Silk_main_FLP.h => silk_main_FLP.h} (83%)
 rename silk/float/{SKP_Silk_noise_shape_analysis_FLP.c => silk_noise_shape_analysis_FLP.c} (89%)
 rename silk/float/{SKP_Silk_pitch_analysis_core_FLP.c => silk_pitch_analysis_core_FLP.c} (87%)
 rename silk/float/{SKP_Silk_prefilter_FLP.c => silk_prefilter_FLP.c} (87%)
 rename silk/float/{SKP_Silk_process_gains_FLP.c => silk_process_gains_FLP.c} (84%)
 rename silk/float/{SKP_Silk_regularize_correlations_FLP.c => silk_regularize_correlations_FLP.c} (95%)
 rename silk/float/{SKP_Silk_residual_energy_FLP.c => silk_residual_energy_FLP.c} (83%)
 rename silk/float/{SKP_Silk_scale_copy_vector_FLP.c => silk_scale_copy_vector_FLP.c} (95%)
 rename silk/float/{SKP_Silk_scale_vector_FLP.c => silk_scale_vector_FLP.c} (95%)
 rename silk/float/{SKP_Silk_schur_FLP.c => silk_schur_FLP.c} (78%)
 rename silk/float/{SKP_Silk_solve_LS_FLP.c => silk_solve_LS_FLP.c} (91%)
 rename silk/float/{SKP_Silk_sort_FLP.c => silk_sort_FLP.c} (80%)
 rename silk/float/{SKP_Silk_structs_FLP.h => silk_structs_FLP.h} (78%)
 rename silk/float/{SKP_Silk_warped_autocorrelation_FLP.c => silk_warped_autocorrelation_FLP.c} (95%)
 rename silk/float/{SKP_Silk_wrappers_FLP.c => silk_wrappers_FLP.c} (87%)
 rename silk/{SKP_Silk_A2NLSF.c => silk_A2NLSF.c} (83%)
 rename silk/{SKP_Silk_SDK_API.h => silk_API.h} (77%)
 rename silk/{SKP_Silk_CNG.c => silk_CNG.c} (86%)
 rename silk/{SKP_Silk_HP_variable_cutoff.c => silk_HP_variable_cutoff.c} (50%)
 rename silk/{SKP_Silk_Inlines.h => silk_Inlines.h} (76%)
 rename silk/{SKP_Silk_LPC_analysis_filter.c => silk_LPC_analysis_filter.c} (96%)
 rename silk/{SKP_Silk_LPC_inv_pred_gain.c => silk_LPC_inv_pred_gain.c} (80%)
 rename silk/{SKP_Silk_LPC_stabilize.c => silk_LPC_stabilize.c} (90%)
 rename silk/{SKP_Silk_LPC_synthesis_filter.c => silk_LPC_synthesis_filter.c} (94%)
 rename silk/{SKP_Silk_LPC_synthesis_order16.c => silk_LPC_synthesis_order16.c} (94%)
 rename silk/{SKP_Silk_LP_variable_cutoff.c => silk_LP_variable_cutoff.c} (72%)
 rename silk/{SKP_Silk_MacroCount.h => silk_MacroCount.h} (100%)
 rename silk/{SKP_Silk_MacroDebug.h => silk_MacroDebug.h} (100%)
 rename silk/{SKP_Silk_NLSF2A.c => silk_NLSF2A.c} (87%)
 rename silk/{SKP_Silk_NLSF2A_stable.c => silk_NLSF2A_stable.c} (87%)
 rename silk/{SKP_Silk_NLSF_VQ.c => silk_NLSF_VQ.c} (96%)
 rename silk/{SKP_Silk_NLSF_VQ_weights_laroia.c => silk_NLSF_VQ_weights_laroia.c} (96%)
 rename silk/{SKP_Silk_NLSF_decode.c => silk_NLSF_decode.c} (80%)
 rename silk/{SKP_Silk_NLSF_del_dec_quant.c => silk_NLSF_del_dec_quant.c} (92%)
 rename silk/{SKP_Silk_NLSF_encode.c => silk_NLSF_encode.c} (83%)
 rename silk/{SKP_Silk_NLSF_stabilize.c => silk_NLSF_stabilize.c} (95%)
 rename silk/{SKP_Silk_NLSF_unpack.c => silk_NLSF_unpack.c} (92%)
 rename silk/{SKP_Silk_NSQ.c => silk_NSQ.c} (92%)
 rename silk/{SKP_Silk_NSQ_del_dec.c => silk_NSQ_del_dec.c} (94%)
 rename silk/{SKP_Silk_PLC.c => silk_PLC.c} (87%)
 rename silk/{SKP_Silk_PLC.h => silk_PLC.h} (75%)
 rename silk/{SKP_Silk_SigProc_FIX.h => silk_SigProc_FIX.h} (87%)
 rename silk/{SKP_Silk_VAD.c => silk_VAD.c} (84%)
 rename silk/{SKP_Silk_VQ_WMat_EC.c => silk_VQ_WMat_EC.c} (97%)
 rename silk/{SKP_Silk_ana_filt_bank_1.c => silk_ana_filt_bank_1.c} (82%)
 rename silk/{SKP_Silk_apply_sine_window.c => silk_apply_sine_window.c} (96%)
 rename silk/{SKP_Silk_array_maxabs.c => silk_array_maxabs.c} (75%)
 rename silk/{SKP_Silk_autocorr.c => silk_autocorr.c} (87%)
 rename silk/{SKP_Silk_biquad_alt.c => silk_biquad_alt.c} (95%)
 rename silk/{SKP_Silk_burg_modified.c => silk_burg_modified.c} (87%)
 rename silk/{SKP_Silk_bwexpander.c => silk_bwexpander.c} (96%)
 rename silk/{SKP_Silk_bwexpander_32.c => silk_bwexpander_32.c} (95%)
 rename silk/{SKP_Silk_check_control_input.c => silk_check_control_input.c} (77%)
 rename silk/{SKP_Silk_code_signs.c => silk_code_signs.c} (95%)
 rename silk/{SKP_Silk_control.h => silk_control.h} (89%)
 rename silk/{SKP_Silk_control_SNR.c => silk_control_SNR.c} (78%)
 rename silk/{SKP_Silk_control_audio_bandwidth.c => silk_control_audio_bandwidth.c} (93%)
 rename silk/{SKP_Silk_control_codec.c => silk_control_codec.c} (68%)
 rename silk/{SKP_Silk_create_init_destroy.c => silk_create_init_destroy.c} (86%)
 rename silk/{SKP_Silk_debug.c => silk_debug.c} (52%)
 rename silk/{SKP_debug.h => silk_debug.h} (66%)
 rename silk/{SKP_Silk_dec_API.c => silk_dec_API.c} (52%)
 rename silk/{SKP_Silk_decode_core.c => silk_decode_core.c} (91%)
 rename silk/{SKP_Silk_decode_frame.c => silk_decode_frame.c} (85%)
 rename silk/{SKP_Silk_decode_indices.c => silk_decode_indices.c} (82%)
 rename silk/{SKP_Silk_decode_parameters.c => silk_decode_parameters.c} (77%)
 rename silk/{SKP_Silk_decode_pitch.c => silk_decode_pitch.c} (88%)
 rename silk/{SKP_Silk_decode_pulses.c => silk_decode_pulses.c} (86%)
 rename silk/{SKP_Silk_decoder_set_fs.c => silk_decoder_set_fs.c} (80%)
 rename silk/{SKP_Silk_define.h => silk_define.h} (92%)
 rename silk/{SKP_Silk_enc_API.c => silk_enc_API.c} (56%)
 rename silk/{SKP_Silk_encode_indices.c => silk_encode_indices.c} (86%)
 rename silk/{SKP_Silk_encode_pulses.c => silk_encode_pulses.c} (84%)
 rename silk/{SKP_Silk_errors.h => silk_errors.h} (71%)
 rename silk/{SKP_Silk_gain_quant.c => silk_gain_quant.c} (90%)
 rename silk/{SKP_Silk_init_encoder.c => silk_init_encoder.c} (75%)
 rename silk/{SKP_Silk_inner_prod_aligned.c => silk_inner_prod_aligned.c} (93%)
 rename silk/{SKP_Silk_interpolate.c => silk_interpolate.c} (96%)
 rename silk/{SKP_Silk_k2a.c => silk_k2a.c} (94%)
 rename silk/{SKP_Silk_k2a_Q16.c => silk_k2a_Q16.c} (94%)
 rename silk/{SKP_Silk_lin2log.c => silk_lin2log.c} (90%)
 rename silk/{SKP_Silk_log2lin.c => silk_log2lin.c} (90%)
 rename silk/{SKP_Silk_macros.h => silk_macros.h} (93%)
 rename silk/{SKP_Silk_main.h => silk_main.h} (79%)
 rename silk/{SKP_Silk_pitch_analysis_core.c => silk_pitch_analysis_core.c} (84%)
 rename silk/{SKP_Silk_pitch_est_defines.h => silk_pitch_est_defines.h} (81%)
 rename silk/{SKP_Silk_pitch_est_tables.c => silk_pitch_est_tables.c} (79%)
 rename silk/{SKP_Silk_process_NLSFs.c => silk_process_NLSFs.c} (80%)
 rename silk/{SKP_Silk_quant_LTP_gains.c => silk_quant_LTP_gains.c} (90%)
 rename silk/{SKP_Silk_resampler.c => silk_resampler.c} (76%)
 rename silk/{SKP_Silk_resampler_down2.c => silk_resampler_down2.c} (77%)
 rename silk/{SKP_Silk_resampler_down2_3.c => silk_resampler_down2_3.c} (69%)
 rename silk/{SKP_Silk_resampler_down3.c => silk_resampler_down3.c} (77%)
 rename silk/{SKP_Silk_resampler_private.h => silk_resampler_private.h} (82%)
 rename silk/{SKP_Silk_resampler_private_AR2.c => silk_resampler_private_AR2.c} (81%)
 rename silk/{SKP_Silk_resampler_private_ARMA4.c => silk_resampler_private_ARMA4.c} (85%)
 rename silk/{SKP_Silk_resampler_private_IIR_FIR.c => silk_resampler_private_IIR_FIR.c} (69%)
 rename silk/{SKP_Silk_resampler_private_copy.c => silk_resampler_private_copy.c} (77%)
 rename silk/{SKP_Silk_resampler_private_down4.c => silk_resampler_private_down4.c} (78%)
 rename silk/{SKP_Silk_resampler_private_down_FIR.c => silk_resampler_private_down_FIR.c} (82%)
 rename silk/{SKP_Silk_resampler_private_up2_HQ.c => silk_resampler_private_up2_HQ.c} (72%)
 rename silk/{SKP_Silk_resampler_private_up4.c => silk_resampler_private_up4.c} (88%)
 rename silk/{SKP_Silk_resampler_rom.c => silk_resampler_rom.c} (71%)
 rename silk/{SKP_Silk_resampler_rom.h => silk_resampler_rom.h} (59%)
 rename silk/{SKP_Silk_resampler_structs.h => silk_resampler_structs.h} (72%)
 rename silk/{SKP_Silk_resampler_up2.c => silk_resampler_up2.c} (77%)
 rename silk/{SKP_Silk_scale_copy_vector16.c => silk_scale_copy_vector16.c} (95%)
 rename silk/{SKP_Silk_scale_vector.c => silk_scale_vector.c} (94%)
 rename silk/{SKP_Silk_schur.c => silk_schur.c} (80%)
 rename silk/{SKP_Silk_schur64.c => silk_schur64.c} (90%)
 rename silk/{SKP_Silk_shell_coder.c => silk_shell_coder.c} (69%)
 rename silk/{SKP_Silk_sigm_Q15.c => silk_sigm_Q15.c} (78%)
 rename silk/{SKP_Silk_sort.c => silk_sort.c} (77%)
 create mode 100644 silk/silk_stereo_LR_to_MS.c
 rename silk/{SKP_Silk_stereo_MS_to_LR.c => silk_stereo_MS_to_LR.c} (67%)
 rename silk/{SKP_Silk_stereo_decode_pred.c => silk_stereo_decode_pred.c} (69%)
 create mode 100644 silk/silk_stereo_encode_pred.c
 rename silk/{SKP_Silk_stereo_find_predictor.c => silk_stereo_find_predictor.c} (55%)
 rename silk/{SKP_Silk_stereo_encode_pred.c => silk_stereo_quant_pred.c} (68%)
 rename silk/{SKP_Silk_structs.h => silk_structs.h} (86%)
 rename silk/{SKP_Silk_sum_sqr_shift.c => silk_sum_sqr_shift.c} (96%)
 rename silk/{SKP_Silk_LSF_cos_table.c => silk_table_LSF_cos.c} (94%)
 create mode 100644 silk/silk_tables.h
 rename silk/{SKP_Silk_tables_LTP.c => silk_tables_LTP.c} (78%)
 rename silk/{SKP_Silk_tables_NLSF_CB_NB_MB.c => silk_tables_NLSF_CB_NB_MB.c} (89%)
 rename silk/{SKP_Silk_tables_NLSF_CB_WB.c => silk_tables_NLSF_CB_WB.c} (91%)
 rename silk/{SKP_Silk_tables_gain.c => silk_tables_gain.c} (90%)
 rename silk/{SKP_Silk_tables_other.c => silk_tables_other.c} (62%)
 rename silk/{SKP_Silk_tables_pitch_lag.c => silk_tables_pitch_lag.c} (85%)
 rename silk/{SKP_Silk_tables_pulses_per_block.c => silk_tables_pulses_per_block.c} (90%)
 rename silk/{SKP_Silk_tuning_parameters.h => silk_tuning_parameters.h} (86%)
 rename silk/{SKP_Silk_typedef.h => silk_typedef.h} (96%)

diff --git a/doc/build_draft.sh b/doc/build_draft.sh
index 35ceeb48..3035adc9 100755
--- a/doc/build_draft.sh
+++ b/doc/build_draft.sh
@@ -11,16 +11,23 @@ destdir="opus_source"
 echo packaging source code
 rm -rf "${destdir}"
 mkdir "${destdir}"
+mkdir "${destdir}/src"
+mkdir "${destdir}/silk"
+mkdir "${destdir}/silk/float"
+mkdir "${destdir}/silk/fixed"
+mkdir "${destdir}/libcelt"
 for f in `cat "${toplevel}"/opus_sources.mk "${toplevel}"/celt_sources.mk \
  "${toplevel}"/silk_sources.mk "${toplevel}"/opus_headers.txt \
  "${toplevel}"/celt_headers.txt "${toplevel}"/silk_headers.txt \
  | grep '\.[ch]' | sed -e 's/^.*=//' -e 's/\\\\//'` ; do
-  cp -a "${toplevel}/${f}" "${destdir}"
+  cp -a "${toplevel}/${f}" "${destdir}/${f}"
 done
+cp -a "${toplevel}"/src/test_opus.c "${destdir}"/src/
 cp -a "${toplevel}"/Makefile.draft "${destdir}"/Makefile
 cp -a "${toplevel}"/opus_sources.mk "${destdir}"/
 cp -a "${toplevel}"/celt_sources.mk "${destdir}"/
-cp -a "${toplevel}"/silk_sources.mk "${destdir}"/
+cat "${toplevel}"/silk_sources.mk | sed 's/^if /ifdef /' \
+ > "${destdir}"/silk_sources.mk
 cp -a "${toplevel}"/README.draft "${destdir}"/README
 cp -a "${toplevel}"/COPYING "${destdir}"/COPYING
 
diff --git a/libcelt/celt_header.h b/libcelt/celt_header.h
deleted file mode 100644
index 3777484f..00000000
--- a/libcelt/celt_header.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/* Copyright (c) 2007 CSIRO
-   Copyright (c) 2007-2008 Xiph.Org Foundation
-   Written by Jean-Marc Valin */
-/*
-   Redistribution and use in source and binary forms, with or without
-   modification, are permitted provided that the following conditions
-   are met:
-   
-   - Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-   
-   - Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-   
-   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-   A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
-   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-#ifndef CELT_HEADER_H
-#define CELT_HEADER_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include "celt.h"
-#include "celt_types.h"
-
-/** Header data to be used for Ogg files (or possibly other encapsulation) 
-    @brief Header data 
- */
-typedef struct {
-   char         codec_id[8];       /**< MUST be "CELT    " (four spaces) */
-   char         codec_version[20]; /**< Version used (as string) */
-   celt_int32 version_id;        /**< Version id (negative for until stream is frozen) */
-   celt_int32 header_size;       /**< Size of this header */
-   celt_int32 sample_rate;       /**< Sampling rate of the original audio */
-   celt_int32 nb_channels;       /**< Number of channels */
-   celt_int32 frame_size;        /**< Samples per frame (per channel) */
-   celt_int32 overlap;           /**< Overlapping samples (per channel) */
-   celt_int32 bytes_per_packet;  /**< Number of bytes per compressed packet (0 if unknown) */
-   celt_int32 extra_headers;     /**< Number of additional headers that follow this header */
-} CELTHeader;
-
-/** Creates a basic header struct */
-EXPORT int celt_header_init(CELTHeader *header, const CELTMode *m, int frame_size, int channels);
-
-EXPORT int celt_header_to_packet(const CELTHeader *header, unsigned char *packet, celt_uint32 size);
-
-EXPORT int celt_header_from_packet(const unsigned char *packet, celt_uint32 size, CELTHeader *header);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* CELT_HEADER_H */
diff --git a/libcelt/libcelt.vcxproj b/libcelt/libcelt.vcxproj
index fe04999e..6be1813d 100644
--- a/libcelt/libcelt.vcxproj
+++ b/libcelt/libcelt.vcxproj
@@ -75,7 +75,6 @@
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\win32\config.h" />
-    <ClInclude Include="..\msvc\config.h" />
     <ClInclude Include="arch.h" />
     <ClInclude Include="bands.h" />
     <ClInclude Include="celt.h" />
@@ -109,7 +108,6 @@
     <ClCompile Include="entcode.c" />
     <ClCompile Include="entdec.c" />
     <ClCompile Include="entenc.c" />
-    <ClCompile Include="header.c" />
     <ClCompile Include="kiss_fft.c" />
     <ClCompile Include="laplace.c" />
     <ClCompile Include="mathops.c" />
diff --git a/libcelt/libcelt.vcxproj.filters b/libcelt/libcelt.vcxproj.filters
index 5c53e5c8..4e650b91 100644
--- a/libcelt/libcelt.vcxproj.filters
+++ b/libcelt/libcelt.vcxproj.filters
@@ -93,9 +93,6 @@
     <ClInclude Include="vq.h">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="..\msvc\config.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
     <ClInclude Include="..\..\win32\config.h">
       <Filter>Header Files</Filter>
     </ClInclude>
@@ -119,9 +116,6 @@
     <ClCompile Include="entenc.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="header.c">
-      <Filter>Source Files</Filter>
-    </ClCompile>
     <ClCompile Include="kiss_fft.c">
       <Filter>Source Files</Filter>
     </ClCompile>
diff --git a/opus.sln b/opus.sln
index 2df4309e..c248b95f 100644
--- a/opus.sln
+++ b/opus.sln
@@ -2,12 +2,30 @@
 Microsoft Visual Studio Solution File, Format Version 11.00
 # Visual Studio 2010
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "silk_common", "silk\silk_common.vcxproj", "{C303D2FC-FF97-49B8-9DDD-467B4C9A0B16}"
+	ProjectSection(ProjectDependencies) = postProject
+		{245603E3-F580-41A5-9632-B25FE3372CBF} = {245603E3-F580-41A5-9632-B25FE3372CBF}
+	EndProjectSection
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "opus", "src\opus.vcxproj", "{219EC965-228A-1824-174D-96449D05F88A}"
+	ProjectSection(ProjectDependencies) = postProject
+		{8484C90D-1561-402F-A91D-2DB10F8C5171} = {8484C90D-1561-402F-A91D-2DB10F8C5171}
+		{9C4961D2-5DDB-40C7-9BE8-CA918DC4E782} = {9C4961D2-5DDB-40C7-9BE8-CA918DC4E782}
+		{245603E3-F580-41A5-9632-B25FE3372CBF} = {245603E3-F580-41A5-9632-B25FE3372CBF}
+		{C303D2FC-FF97-49B8-9DDD-467B4C9A0B16} = {C303D2FC-FF97-49B8-9DDD-467B4C9A0B16}
+	EndProjectSection
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "silk_fixed", "silk\fixed\silk_fixed.vcxproj", "{8484C90D-1561-402F-A91D-2DB10F8C5171}"
+	ProjectSection(ProjectDependencies) = postProject
+		{245603E3-F580-41A5-9632-B25FE3372CBF} = {245603E3-F580-41A5-9632-B25FE3372CBF}
+		{C303D2FC-FF97-49B8-9DDD-467B4C9A0B16} = {C303D2FC-FF97-49B8-9DDD-467B4C9A0B16}
+	EndProjectSection
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "silk_float", "silk\float\silk_float.vcxproj", "{9C4961D2-5DDB-40C7-9BE8-CA918DC4E782}"
+	ProjectSection(ProjectDependencies) = postProject
+		{8484C90D-1561-402F-A91D-2DB10F8C5171} = {8484C90D-1561-402F-A91D-2DB10F8C5171}
+		{245603E3-F580-41A5-9632-B25FE3372CBF} = {245603E3-F580-41A5-9632-B25FE3372CBF}
+		{C303D2FC-FF97-49B8-9DDD-467B4C9A0B16} = {C303D2FC-FF97-49B8-9DDD-467B4C9A0B16}
+	EndProjectSection
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libcelt", "libcelt\libcelt.vcxproj", "{245603E3-F580-41A5-9632-B25FE3372CBF}"
 EndProject
diff --git a/silk/SKP_Silk_stereo_LR_to_MS.c b/silk/SKP_Silk_stereo_LR_to_MS.c
deleted file mode 100644
index 190d95f4..00000000
--- a/silk/SKP_Silk_stereo_LR_to_MS.c
+++ /dev/null
@@ -1,107 +0,0 @@
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved. 
-Redistribution and use in source and binary forms, with or without 
-modification, (subject to the limitations in the disclaimer below) 
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright 
-notice, this list of conditions and the following disclaimer in the 
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific 
-contributors, may be used to endorse or promote products derived from 
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED 
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main.h"
-
-/* Convert Left/Right stereo signal to adaptive Mid/Side representation */
-void SKP_Silk_stereo_LR_to_MS( 
-    ec_enc              *psRangeEnc,                    /* I/O  Compressor data structure                   */
-    stereo_state        *state,                         /* I/O  State                                       */
-    SKP_int16           x1[],                           /* I/O  Left input signal, becomes mid signal       */
-    SKP_int16           x2[],                           /* I/O  Right input signal, becomes side signal     */
-    SKP_int             fs_kHz,                         /* I    Samples rate (kHz)                          */
-    SKP_int             frame_length                    /* I    Number of samples                           */
-)
-{
-    SKP_int   n, denom_Q16, delta0_Q13, delta1_Q13;
-    SKP_int32 sum, diff, pred_Q13[ 2 ], pred0_Q13, pred1_Q13;
-    SKP_int16 mid[ MAX_FRAME_LENGTH + 2 ], side[ MAX_FRAME_LENGTH + 2 ];
-    SKP_int16 LP_mid[  MAX_FRAME_LENGTH ], HP_mid[  MAX_FRAME_LENGTH ];
-    SKP_int16 LP_side[ MAX_FRAME_LENGTH ], HP_side[ MAX_FRAME_LENGTH ];
-
-    /* Convert to basic mid/side signals */
-    for( n = 0; n < frame_length; n++ ) {
-        sum  = x1[ n ] + (SKP_int32)x2[ n ];
-        diff = x1[ n ] - (SKP_int32)x2[ n ];
-        mid[  n + 2 ] = (SKP_int16)SKP_RSHIFT_ROUND( sum,  1 );
-        side[ n + 2 ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( diff, 1 ) );
-    }
-
-    /* Buffering */
-    SKP_memcpy( mid,  state->sMid,  2 * sizeof( SKP_int16 ) );
-    SKP_memcpy( side, state->sSide, 2 * sizeof( SKP_int16 ) );
-    SKP_memcpy( state->sMid,  &mid[  frame_length ], 2 * sizeof( SKP_int16 ) );
-    SKP_memcpy( state->sSide, &side[ frame_length ], 2 * sizeof( SKP_int16 ) );
-
-    /* LP and HP filter mid signal */
-    for( n = 0; n < frame_length; n++ ) {
-        sum = SKP_RSHIFT_ROUND( SKP_ADD_LSHIFT( mid[ n ] + mid[ n + 2 ], mid[ n + 1 ], 1 ), 2 );
-        LP_mid[ n ] = sum;
-        HP_mid[ n ] = mid[ n + 1 ] - sum;
-    }
-
-    /* LP and HP filter side signal */
-    for( n = 0; n < frame_length; n++ ) {
-        sum = SKP_RSHIFT_ROUND( SKP_ADD_LSHIFT( side[ n ] + side[ n + 2 ], side[ n + 1 ], 1 ), 2 );
-        LP_side[ n ] = sum;
-        HP_side[ n ] = side[ n + 1 ] - sum;
-    }
-
-    /* Find predictors */
-    pred_Q13[ 0 ] = SKP_Silk_stereo_find_predictor( LP_mid, LP_side, frame_length );
-    pred_Q13[ 1 ] = SKP_Silk_stereo_find_predictor( HP_mid, HP_side, frame_length );
-
-    /* Quantize and encode predictors */
-    SKP_Silk_stereo_encode_pred( psRangeEnc, pred_Q13 );
-
-    /* Interpolate predictors and subtract prediction from side channel */
-    pred0_Q13  = -state->pred_prev_Q13[ 0 ];
-    pred1_Q13  = -state->pred_prev_Q13[ 1 ];
-    denom_Q16  = SKP_DIV32_16( 1 << 16, STEREO_INTERP_LEN_MS * fs_kHz );
-    delta0_Q13 = -SKP_RSHIFT_ROUND( SKP_SMULBB( pred_Q13[ 0 ] - state->pred_prev_Q13[ 0 ], denom_Q16 ), 16 );
-    delta1_Q13 = -SKP_RSHIFT_ROUND( SKP_SMULBB( pred_Q13[ 1 ] - state->pred_prev_Q13[ 1 ], denom_Q16 ), 16 );
-    for( n = 0; n < STEREO_INTERP_LEN_MS * fs_kHz; n++ ) {
-        pred0_Q13 += delta0_Q13;
-        pred1_Q13 += delta1_Q13;
-        sum = SKP_LSHIFT( SKP_ADD_LSHIFT( mid[ n ] + mid[ n + 2 ], mid[ n + 1 ], 1 ), 9 );      /* Q11 */ 
-        sum = SKP_SMLAWB( SKP_LSHIFT( ( SKP_int32 )side[ n + 1 ], 8 ), sum, pred0_Q13 );        /* Q8  */
-        sum = SKP_SMLAWB( sum, SKP_LSHIFT( ( SKP_int32 )mid[ n + 1 ], 11 ), pred1_Q13 );        /* Q8  */
-        x2[ n ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( sum, 8 ) );
-    }
-    pred0_Q13 = -pred_Q13[ 0 ];
-    pred1_Q13 = -pred_Q13[ 1 ];
-    for( n = STEREO_INTERP_LEN_MS * fs_kHz; n < frame_length; n++ ) {
-        sum = SKP_LSHIFT( SKP_ADD_LSHIFT( mid[ n ] + mid[ n + 2 ], mid[ n + 1 ], 1 ), 9 );      /* Q11 */ 
-        sum = SKP_SMLAWB( SKP_LSHIFT( ( SKP_int32 )side[ n + 1 ], 8 ), sum, pred0_Q13 );        /* Q8  */
-        sum = SKP_SMLAWB( sum, SKP_LSHIFT( ( SKP_int32 )mid[ n + 1 ], 11 ), pred1_Q13 );        /* Q8  */
-        x2[ n ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( sum, 8 ) );
-    }
-    state->pred_prev_Q13[ 0 ] = pred_Q13[ 0 ];
-    state->pred_prev_Q13[ 1 ] = pred_Q13[ 1 ];
-
-    SKP_memcpy( x1, mid + 1, frame_length * sizeof( SKP_int16 ) );
-}
diff --git a/silk/SKP_Silk_tables.h b/silk/SKP_Silk_tables.h
deleted file mode 100644
index 7cb5ac95..00000000
--- a/silk/SKP_Silk_tables.h
+++ /dev/null
@@ -1,117 +0,0 @@
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved. 
-Redistribution and use in source and binary forms, with or without 
-modification, (subject to the limitations in the disclaimer below) 
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright 
-notice, this list of conditions and the following disclaimer in the 
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific 
-contributors, may be used to endorse or promote products derived from 
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED 
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#ifndef SKP_SILK_TABLES_H
-#define SKP_SILK_TABLES_H
-
-#include "SKP_Silk_define.h"
-#include "SKP_Silk_structs.h"
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-/* entropy coding tables */
-extern const SKP_uint8  SKP_Silk_gain_iCDF[ 3 ][ N_LEVELS_QGAIN / 8 ];                               /* 24 */
-extern const SKP_uint8  SKP_Silk_delta_gain_iCDF[ MAX_DELTA_GAIN_QUANT - MIN_DELTA_GAIN_QUANT + 1 ]; /* 41 */
-
-extern const SKP_uint8  SKP_Silk_pitch_lag_iCDF[ 2 * ( PITCH_EST_MAX_LAG_MS - PITCH_EST_MIN_LAG_MS ) ];  /* 32 */
-extern const SKP_uint8  SKP_Silk_pitch_delta_iCDF[ 21 ];                                            /*  21 */
-extern const SKP_uint8  SKP_Silk_pitch_contour_iCDF[ 34 ];                                          /*  34 */
-extern const SKP_uint8  SKP_Silk_pitch_contour_NB_iCDF[ 11 ];                                       /*  11 */
-extern const SKP_uint8  SKP_Silk_pitch_contour_10_ms_iCDF[ 12 ];                                    /*  12 */
-extern const SKP_uint8  SKP_Silk_pitch_contour_10_ms_NB_iCDF[ 3 ];                                  /*   3 */
-
-extern const SKP_uint8  SKP_Silk_pulses_per_block_iCDF[ N_RATE_LEVELS ][ MAX_PULSES + 2 ];          /* 180 */
-extern const SKP_uint8  SKP_Silk_pulses_per_block_BITS_Q5[ N_RATE_LEVELS - 1 ][ MAX_PULSES + 2 ];   /* 162 */
-
-extern const SKP_uint8  SKP_Silk_rate_levels_iCDF[ 2 ][ N_RATE_LEVELS - 1 ];                        /*  18 */
-extern const SKP_uint8  SKP_Silk_rate_levels_BITS_Q5[ 2 ][ N_RATE_LEVELS - 1 ];                     /*  18 */
-
-extern const SKP_uint8  SKP_Silk_max_pulses_table[ 4 ];                                             /*   4 */
-
-extern const SKP_uint8  SKP_Silk_shell_code_table0[  44 ];                                          /*  44 */
-extern const SKP_uint8  SKP_Silk_shell_code_table1[  65 ];                                          /*  65 */
-extern const SKP_uint8  SKP_Silk_shell_code_table2[  90 ];                                          /*  90 */
-extern const SKP_uint8  SKP_Silk_shell_code_table3[ 152 ];                                          /* 152 */
-extern const SKP_uint8  SKP_Silk_shell_code_table_offsets[ MAX_PULSES + 1 ];                        /*  17 */
-
-extern const SKP_uint8  SKP_Silk_lsb_iCDF[ 2 ];                                                     /*   2 */
-
-extern const SKP_uint8  SKP_Silk_sign_iCDF[ 36 ];                                                   /*  36 */
-
-extern const SKP_uint8  SKP_Silk_uniform2_iCDF[ 2 ];                                                /*   2 */
-extern const SKP_uint8  SKP_Silk_uniform3_iCDF[ 3 ];                                                /*   3 */
-extern const SKP_uint8  SKP_Silk_uniform4_iCDF[ 4 ];                                                /*   4 */
-extern const SKP_uint8  SKP_Silk_uniform5_iCDF[ 5 ];                                                /*   5 */
-extern const SKP_uint8  SKP_Silk_uniform6_iCDF[ 6 ];                                                /*   6 */
-extern const SKP_uint8  SKP_Silk_uniform8_iCDF[ 8 ];                                                /*   8 */
-
-extern const SKP_uint8  SKP_Silk_NLSF_EXT_iCDF[ 7 ];                                                /*   7 */
-
-extern const SKP_uint8  SKP_Silk_LTP_per_index_iCDF[ 3 ];                                           /*   3 */
-extern const SKP_uint8  * const SKP_Silk_LTP_gain_iCDF_ptrs[ NB_LTP_CBKS ];                         /*   3 */
-extern const SKP_uint8  * const SKP_Silk_LTP_gain_BITS_Q5_ptrs[ NB_LTP_CBKS ];                      /*   3 */
-extern const SKP_int16  SKP_Silk_LTP_gain_middle_avg_RD_Q14;
-extern const SKP_int8   * const SKP_Silk_LTP_vq_ptrs_Q7[ NB_LTP_CBKS ];                             /* 168 */
-extern const SKP_int8   SKP_Silk_LTP_vq_sizes[ NB_LTP_CBKS ];                                       /*   3 */
-
-extern const SKP_uint8  SKP_Silk_LTPscale_iCDF[ 3 ];                                                /*   4 */
-extern const SKP_int16  SKP_Silk_LTPScales_table_Q14[ 3 ];
-
-extern const SKP_uint8  SKP_Silk_type_offset_VAD_iCDF[ 4 ];                                         /*   4 */
-extern const SKP_uint8  SKP_Silk_type_offset_no_VAD_iCDF[ 2 ];                                      /*   2 */
-
-extern const SKP_int16  SKP_Silk_stereo_pred_quant_Q13[ STEREO_QUANT_TAB_SIZE ];                    /*  32 */
-extern const SKP_uint8  SKP_Silk_stereo_pred_joint_iCDF[ 25 ];                                      /*  25 */
-
-extern const SKP_uint8 * const SKP_Silk_LBRR_flags_iCDF_ptr[ 2 ];                                   /*  10 */
-
-extern const SKP_uint8  SKP_Silk_NLSF_interpolation_factor_iCDF[ 5 ];                               /*   5 */
-
-extern const SKP_Silk_NLSF_CB_struct SKP_Silk_NLSF_CB_WB;
-extern const SKP_Silk_NLSF_CB_struct SKP_Silk_NLSF_CB_NB_MB;
-
-/* Piece-wise linear mapping from bitrate in kbps to coding quality in dB SNR */
-extern const SKP_int32  TargetRate_table_NB[  TARGET_RATE_TAB_SZ ];
-extern const SKP_int32  TargetRate_table_MB[  TARGET_RATE_TAB_SZ ];
-extern const SKP_int32  TargetRate_table_WB[  TARGET_RATE_TAB_SZ ];
-extern const SKP_int16  SNR_table_Q1[         TARGET_RATE_TAB_SZ ];
-
-/* Quantization offsets */
-extern const SKP_int16  SKP_Silk_Quantization_Offsets_Q10[ 2 ][ 2 ];
-
-/* Interpolation points for filter coefficients used in the bandwidth transition smoother */
-extern const SKP_int32  SKP_Silk_Transition_LP_B_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NB ];
-extern const SKP_int32  SKP_Silk_Transition_LP_A_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NA ];
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/silk/fixed/SKP_Silk_LTP_analysis_filter_FIX.c b/silk/fixed/silk_LTP_analysis_filter_FIX.c
similarity index 96%
rename from silk/fixed/SKP_Silk_LTP_analysis_filter_FIX.c
rename to silk/fixed/silk_LTP_analysis_filter_FIX.c
index 4e21d65e..2e864a49 100644
--- a/silk/fixed/SKP_Silk_LTP_analysis_filter_FIX.c
+++ b/silk/fixed/silk_LTP_analysis_filter_FIX.c
@@ -25,9 +25,9 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FIX.h"
+#include "silk_main_FIX.h"
 
-void SKP_Silk_LTP_analysis_filter_FIX(
+void silk_LTP_analysis_filter_FIX(
     SKP_int16       *LTP_res,                               /* O:   LTP residual signal of length MAX_NB_SUBFR * ( pre_length + subfr_length )  */
     const SKP_int16 *x,                                     /* I:   Pointer to input signal with at least max( pitchL ) preceeding samples      */
     const SKP_int16 LTPCoef_Q14[ LTP_ORDER * MAX_NB_SUBFR ],/* I:   LTP_ORDER LTP coefficients for each MAX_NB_SUBFR subframe                   */
diff --git a/silk/fixed/SKP_Silk_LTP_scale_ctrl_FIX.c b/silk/fixed/silk_LTP_scale_ctrl_FIX.c
similarity index 82%
rename from silk/fixed/SKP_Silk_LTP_scale_ctrl_FIX.c
rename to silk/fixed/silk_LTP_scale_ctrl_FIX.c
index 08516050..946d24cc 100644
--- a/silk/fixed/SKP_Silk_LTP_scale_ctrl_FIX.c
+++ b/silk/fixed/silk_LTP_scale_ctrl_FIX.c
@@ -25,11 +25,11 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FIX.h"
+#include "silk_main_FIX.h"
 
-void SKP_Silk_LTP_scale_ctrl_FIX(
-    SKP_Silk_encoder_state_FIX      *psEnc,     /* I/O  encoder state FIX                           */
-    SKP_Silk_encoder_control_FIX    *psEncCtrl  /* I/O  encoder control FIX                         */
+void silk_LTP_scale_ctrl_FIX(
+    silk_encoder_state_FIX      *psEnc,     /* I/O  encoder state FIX                           */
+    silk_encoder_control_FIX    *psEncCtrl  /* I/O  encoder control FIX                         */
 )
 {
     SKP_int round_loss;
@@ -40,13 +40,13 @@ void SKP_Silk_LTP_scale_ctrl_FIX(
     psEnc->prevLTPredCodGain_Q7 = psEncCtrl->LTPredCodGain_Q7;
 
     /* Only scale if first frame in packet */
-    if( psEnc->sCmn.nFramesAnalyzed == 0 ) {
+    if( psEnc->sCmn.nFramesEncoded == 0 ) {
         round_loss = psEnc->sCmn.PacketLoss_perc + psEnc->sCmn.nFramesPerPacket - 1;
         psEnc->sCmn.indices.LTP_scaleIndex = (SKP_int8)SKP_LIMIT( 
-            SKP_SMULWB( SKP_SMULBB( round_loss, psEnc->HPLTPredCodGain_Q7 ), SKP_FIX_CONST( 0.1, 9 ) ), 0, 2 );
+            SKP_SMULWB( SKP_SMULBB( round_loss, psEnc->HPLTPredCodGain_Q7 ), SILK_FIX_CONST( 0.1, 9 ) ), 0, 2 );
     } else {
         /* Default is minimum scaling */
         psEnc->sCmn.indices.LTP_scaleIndex = 0;
     }
-    psEncCtrl->LTP_scale_Q14 = SKP_Silk_LTPScales_table_Q14[ psEnc->sCmn.indices.LTP_scaleIndex ];
+    psEncCtrl->LTP_scale_Q14 = silk_LTPScales_table_Q14[ psEnc->sCmn.indices.LTP_scaleIndex ];
 }
diff --git a/silk/fixed/SKP_Silk_corrMatrix_FIX.c b/silk/fixed/silk_corrMatrix_FIX.c
similarity index 93%
rename from silk/fixed/SKP_Silk_corrMatrix_FIX.c
rename to silk/fixed/silk_corrMatrix_FIX.c
index 1ac1b195..453cac84 100644
--- a/silk/fixed/SKP_Silk_corrMatrix_FIX.c
+++ b/silk/fixed/silk_corrMatrix_FIX.c
@@ -29,10 +29,10 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  * Correlation Matrix Computations for LS estimate. 
  **********************************************************************/
 
-#include "SKP_Silk_main_FIX.h"
+#include "silk_main_FIX.h"
 
 /* Calculates correlation vector X'*t */
-void SKP_Silk_corrVector_FIX(
+void silk_corrVector_FIX(
     const SKP_int16                 *x,         /* I    x vector [L + order - 1] used to form data matrix X */
     const SKP_int16                 *t,         /* I    target vector [L]                                   */
     const SKP_int                   L,          /* I    Length of vectors                                   */
@@ -61,14 +61,14 @@ void SKP_Silk_corrVector_FIX(
     } else {
         SKP_assert( rshifts == 0 );
         for( lag = 0; lag < order; lag++ ) {
-            Xt[ lag ] = SKP_Silk_inner_prod_aligned( ptr1, ptr2, L ); /* X[:,lag]'*t */
+            Xt[ lag ] = silk_inner_prod_aligned( ptr1, ptr2, L ); /* X[:,lag]'*t */
             ptr1--; /* Go to next column of X */
         }
     }
 }
 
 /* Calculates correlation matrix X'*X */
-void SKP_Silk_corrMatrix_FIX(
+void silk_corrMatrix_FIX(
     const SKP_int16                 *x,         /* I    x vector [L + order - 1] used to form data matrix X */
     const SKP_int                   L,          /* I    Length of vectors                                   */
     const SKP_int                   order,      /* I    Max lag for correlation                             */
@@ -82,9 +82,9 @@ void SKP_Silk_corrMatrix_FIX(
     const SKP_int16 *ptr1, *ptr2;
 
     /* Calculate energy to find shift used to fit in 32 bits */
-    SKP_Silk_sum_sqr_shift( &energy, &rshifts_local, x, L + order - 1 );
+    silk_sum_sqr_shift( &energy, &rshifts_local, x, L + order - 1 );
     /* Add shifts to get the desired head room */
-    head_room_rshifts = SKP_max( head_room - SKP_Silk_CLZ32( energy ), 0 );
+    head_room_rshifts = SKP_max( head_room - silk_CLZ32( energy ), 0 );
     
     energy = SKP_RSHIFT32( energy, head_room_rshifts );
     rshifts_local += head_room_rshifts;
@@ -134,7 +134,7 @@ void SKP_Silk_corrMatrix_FIX(
     } else {
         for( lag = 1; lag < order; lag++ ) {
             /* Inner product of column 0 and column lag: X[:,0]'*X[:,lag] */
-            energy = SKP_Silk_inner_prod_aligned( ptr1, ptr2, L );
+            energy = silk_inner_prod_aligned( ptr1, ptr2, L );
             matrix_ptr( XX, lag, 0, order ) = energy;
             matrix_ptr( XX, 0, lag, order ) = energy;
             /* Calculate remaining off diagonal: X[:,j]'*X[:,j + lag] */
diff --git a/silk/fixed/SKP_Silk_encode_frame_FIX.c b/silk/fixed/silk_encode_frame_FIX.c
similarity index 80%
rename from silk/fixed/SKP_Silk_encode_frame_FIX.c
rename to silk/fixed/silk_encode_frame_FIX.c
index a1fbf1ed..06d1d321 100644
--- a/silk/fixed/SKP_Silk_encode_frame_FIX.c
+++ b/silk/fixed/silk_encode_frame_FIX.c
@@ -25,19 +25,19 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FIX.h"
-#include "SKP_Silk_tuning_parameters.h"
+#include "silk_main_FIX.h"
+#include "silk_tuning_parameters.h"
 
 /****************/
 /* Encode frame */
 /****************/
-SKP_int SKP_Silk_encode_frame_FIX( 
-    SKP_Silk_encoder_state_FIX      *psEnc,             /* I/O  Encoder state FIX                       */
+SKP_int silk_encode_frame_FIX( 
+    silk_encoder_state_FIX          *psEnc,             /* I/O  Encoder state FIX                       */
     SKP_int32                       *pnBytesOut,        /*   O  Number of payload bytes                 */
     ec_enc                          *psRangeEnc         /* I/O  compressor data structure               */
 )
 {
-    SKP_Silk_encoder_control_FIX sEncCtrl;
+    silk_encoder_control_FIX sEncCtrl;
     SKP_int     ret = 0;
     SKP_int16   *x_frame, *res_pitch_frame;
     SKP_int16   xfw[ MAX_FRAME_LENGTH ];
@@ -58,16 +58,16 @@ TIC(ENCODE_FRAME)
     /* Voice Activity Detection */
     /****************************/
 TIC(VAD)
-    ret = SKP_Silk_VAD_GetSA_Q8( &psEnc->sCmn, psEnc->sCmn.inputBuf );
+    ret = silk_VAD_GetSA_Q8( &psEnc->sCmn, psEnc->sCmn.inputBuf - 1 );
 TOC(VAD)
 
     /**************************************************/
     /* Convert speech activity into VAD and DTX flags */
     /**************************************************/
-    if( psEnc->sCmn.nFramesAnalyzed == 0 ) {
+    if( psEnc->sCmn.nFramesEncoded == 0 ) {
         psEnc->sCmn.inDTX = psEnc->sCmn.useDTX;
     }
-    if( psEnc->sCmn.speech_activity_Q8 < SKP_FIX_CONST( SPEECH_ACTIVITY_DTX_THRES, 8 ) ) {
+    if( psEnc->sCmn.speech_activity_Q8 < SILK_FIX_CONST( SPEECH_ACTIVITY_DTX_THRES, 8 ) ) {
         psEnc->sCmn.indices.signalType = TYPE_NO_VOICE_ACTIVITY;
         psEnc->sCmn.noSpeechCounter++;
         if( psEnc->sCmn.noSpeechCounter < NB_SPEECH_FRAMES_BEFORE_DTX ) {
@@ -76,76 +76,76 @@ TOC(VAD)
             psEnc->sCmn.noSpeechCounter = NB_SPEECH_FRAMES_BEFORE_DTX;
             psEnc->sCmn.inDTX           = 0;
         }
-        psEnc->sCmn.VAD_flags[ psEnc->sCmn.nFramesAnalyzed ] = 0;
+        psEnc->sCmn.VAD_flags[ psEnc->sCmn.nFramesEncoded ] = 0;
     } else {
         psEnc->sCmn.noSpeechCounter    = 0;
         psEnc->sCmn.inDTX              = 0;
         psEnc->sCmn.indices.signalType = TYPE_UNVOICED;
-        psEnc->sCmn.VAD_flags[ psEnc->sCmn.nFramesAnalyzed ] = 1;
+        psEnc->sCmn.VAD_flags[ psEnc->sCmn.nFramesEncoded ] = 1;
     }
 
-    /*******************************************/
-    /* High-pass filtering of the input signal */
-    /*******************************************/
-TIC(HP_IN)
-    SKP_Silk_HP_variable_cutoff( &psEnc->sCmn, x_frame + LA_SHAPE_MS * psEnc->sCmn.fs_kHz, psEnc->sCmn.inputBuf, psEnc->sCmn.frame_length );
-TOC(HP_IN)
-
+    /***************************************/
     /* Ensure smooth bandwidth transitions */
-    SKP_Silk_LP_variable_cutoff( &psEnc->sCmn.sLP, x_frame + LA_SHAPE_MS * psEnc->sCmn.fs_kHz, psEnc->sCmn.frame_length );
+    /***************************************/
+    silk_LP_variable_cutoff( &psEnc->sCmn.sLP, psEnc->sCmn.inputBuf - 1, psEnc->sCmn.frame_length );
     
+    /*******************************************/
+    /* Copy new frame to front of input buffer */
+    /*******************************************/
+    SKP_memcpy( x_frame + LA_SHAPE_MS * psEnc->sCmn.fs_kHz, psEnc->sCmn.inputBuf - 1, psEnc->sCmn.frame_length * sizeof( SKP_int16 ) );
+
     /*****************************************/
     /* Find pitch lags, initial LPC analysis */
     /*****************************************/
 TIC(FIND_PITCH)
-    SKP_Silk_find_pitch_lags_FIX( psEnc, &sEncCtrl, res_pitch, x_frame );
+    silk_find_pitch_lags_FIX( psEnc, &sEncCtrl, res_pitch, x_frame );
 TOC(FIND_PITCH)
 
     /************************/
     /* Noise shape analysis */
     /************************/
 TIC(NOISE_SHAPE_ANALYSIS)
-    SKP_Silk_noise_shape_analysis_FIX( psEnc, &sEncCtrl, res_pitch_frame, x_frame );
+    silk_noise_shape_analysis_FIX( psEnc, &sEncCtrl, res_pitch_frame, x_frame );
 TOC(NOISE_SHAPE_ANALYSIS)
 
     /***************************************************/
     /* Find linear prediction coefficients (LPC + LTP) */
     /***************************************************/
 TIC(FIND_PRED_COEF)
-    SKP_Silk_find_pred_coefs_FIX( psEnc, &sEncCtrl, res_pitch, x_frame );
+    silk_find_pred_coefs_FIX( psEnc, &sEncCtrl, res_pitch, x_frame );
 TOC(FIND_PRED_COEF)
 
     /****************************************/
     /* Process gains                        */
     /****************************************/
 TIC(PROCESS_GAINS)
-    SKP_Silk_process_gains_FIX( psEnc, &sEncCtrl );
+    silk_process_gains_FIX( psEnc, &sEncCtrl );
 TOC(PROCESS_GAINS)
     
-    /****************************************/
-    /* Low Bitrate Redundant Encoding       */
-    /****************************************/
-TIC(LBRR)
-    SKP_Silk_LBRR_encode_FIX( psEnc, &sEncCtrl, xfw );
-TOC(LBRR)
-
     /*****************************************/
     /* Prefiltering for noise shaper         */
     /*****************************************/
 TIC(PREFILTER)
-    SKP_Silk_prefilter_FIX( psEnc, &sEncCtrl, xfw, x_frame );
+    silk_prefilter_FIX( psEnc, &sEncCtrl, xfw, x_frame );
 TOC(PREFILTER)
 
+    /****************************************/
+    /* Low Bitrate Redundant Encoding       */
+    /****************************************/
+TIC(LBRR)
+    silk_LBRR_encode_FIX( psEnc, &sEncCtrl, xfw );
+TOC(LBRR)
+
     /*****************************************/
     /* Noise shaping quantization            */
     /*****************************************/
 TIC(NSQ)
     if( psEnc->sCmn.nStatesDelayedDecision > 1 || psEnc->sCmn.warping_Q16 > 0 ) {
-        SKP_Silk_NSQ_del_dec( &psEnc->sCmn, &psEnc->sCmn.sNSQ, &psEnc->sCmn.indices, xfw, psEnc->sCmn.pulses, 
+        silk_NSQ_del_dec( &psEnc->sCmn, &psEnc->sCmn.sNSQ, &psEnc->sCmn.indices, xfw, psEnc->sCmn.pulses, 
             sEncCtrl.PredCoef_Q12[ 0 ], sEncCtrl.LTPCoef_Q14, sEncCtrl.AR2_Q13, sEncCtrl.HarmShapeGain_Q14, 
             sEncCtrl.Tilt_Q14, sEncCtrl.LF_shp_Q14, sEncCtrl.Gains_Q16, sEncCtrl.pitchL, sEncCtrl.Lambda_Q10, sEncCtrl.LTP_scale_Q14 );
     } else {
-        SKP_Silk_NSQ( &psEnc->sCmn, &psEnc->sCmn.sNSQ, &psEnc->sCmn.indices, xfw, psEnc->sCmn.pulses, 
+        silk_NSQ( &psEnc->sCmn, &psEnc->sCmn.sNSQ, &psEnc->sCmn.indices, xfw, psEnc->sCmn.pulses, 
             sEncCtrl.PredCoef_Q12[ 0 ], sEncCtrl.LTPCoef_Q14, sEncCtrl.AR2_Q13, sEncCtrl.HarmShapeGain_Q14, 
             sEncCtrl.Tilt_Q14, sEncCtrl.LF_shp_Q14, sEncCtrl.Gains_Q16, sEncCtrl.pitchL, sEncCtrl.Lambda_Q10, sEncCtrl.LTP_scale_Q14 );
     }
@@ -170,14 +170,14 @@ TOC(NSQ)
     /* Encode Parameters                    */
     /****************************************/
 TIC(ENCODE_PARAMS)
-    SKP_Silk_encode_indices( &psEnc->sCmn, psRangeEnc, psEnc->sCmn.nFramesAnalyzed, 0 );
+    silk_encode_indices( &psEnc->sCmn, psRangeEnc, psEnc->sCmn.nFramesEncoded, 0 );
 TOC(ENCODE_PARAMS)
 
     /****************************************/
     /* Encode Excitation Signal             */
     /****************************************/
 TIC(ENCODE_PULSES)
-    SKP_Silk_encode_pulses( psRangeEnc, psEnc->sCmn.indices.signalType, psEnc->sCmn.indices.quantOffsetType, 
+    silk_encode_pulses( psRangeEnc, psEnc->sCmn.indices.signalType, psEnc->sCmn.indices.quantOffsetType, 
         psEnc->sCmn.pulses, psEnc->sCmn.frame_length );
 TOC(ENCODE_PULSES)
 
@@ -185,12 +185,12 @@ TOC(ENCODE_PULSES)
     /* Finalize payload                     */
     /****************************************/
     psEnc->sCmn.first_frame_after_reset = 0;
-    if( ++psEnc->sCmn.nFramesAnalyzed >= psEnc->sCmn.nFramesPerPacket ) {
+    if( ++psEnc->sCmn.nFramesEncoded >= psEnc->sCmn.nFramesPerPacket ) {
         /* Payload size */
         *pnBytesOut = SKP_RSHIFT( ec_tell( psRangeEnc ) + 7, 3 );
 
         /* Reset the number of frames in payload buffer */
-        psEnc->sCmn.nFramesAnalyzed = 0;
+        psEnc->sCmn.nFramesEncoded = 0;
     } else {
         /* No payload this time */
         *pnBytesOut = 0;
@@ -243,30 +243,30 @@ TOC(ENCODE_FRAME)
 }
 
 /* Low-Bitrate Redundancy (LBRR) encoding. Reuse all parameters but encode excitation at lower bitrate  */
-void SKP_Silk_LBRR_encode_FIX(
-    SKP_Silk_encoder_state_FIX      *psEnc,         /* I/O  Pointer to Silk FIX encoder state           */
-    SKP_Silk_encoder_control_FIX    *psEncCtrl,     /* I/O  Pointer to Silk FIX encoder control struct  */
+void silk_LBRR_encode_FIX(
+    silk_encoder_state_FIX          *psEnc,         /* I/O  Pointer to Silk FIX encoder state           */
+    silk_encoder_control_FIX        *psEncCtrl,     /* I/O  Pointer to Silk FIX encoder control struct  */
     const SKP_int16                 xfw[]           /* I    Input signal                                */
 )
 {
     SKP_int32   TempGains_Q16[ MAX_NB_SUBFR ];
-    SideInfoIndices *psIndices_LBRR = &psEnc->sCmn.indices_LBRR[ psEnc->sCmn.nFramesAnalyzed ];
-    SKP_Silk_nsq_state sNSQ_LBRR;
+    SideInfoIndices *psIndices_LBRR = &psEnc->sCmn.indices_LBRR[ psEnc->sCmn.nFramesEncoded ];
+    silk_nsq_state sNSQ_LBRR;
 
     /*******************************************/
     /* Control use of inband LBRR              */
     /*******************************************/
-    if( psEnc->sCmn.LBRR_enabled && psEnc->sCmn.speech_activity_Q8 > SKP_FIX_CONST( LBRR_SPEECH_ACTIVITY_THRES, 8 ) ) {
-        psEnc->sCmn.LBRR_flags[ psEnc->sCmn.nFramesAnalyzed ] = 1;
+    if( psEnc->sCmn.LBRR_enabled && psEnc->sCmn.speech_activity_Q8 > SILK_FIX_CONST( LBRR_SPEECH_ACTIVITY_THRES, 8 ) ) {
+        psEnc->sCmn.LBRR_flags[ psEnc->sCmn.nFramesEncoded ] = 1;
 
         /* Copy noise shaping quantizer state and quantization indices from regular encoding */
-        SKP_memcpy( &sNSQ_LBRR, &psEnc->sCmn.sNSQ, sizeof( SKP_Silk_nsq_state ) );
+        SKP_memcpy( &sNSQ_LBRR, &psEnc->sCmn.sNSQ, sizeof( silk_nsq_state ) );
         SKP_memcpy( psIndices_LBRR, &psEnc->sCmn.indices, sizeof( SideInfoIndices ) );
 
         /* Save original gains */
         SKP_memcpy( TempGains_Q16, psEncCtrl->Gains_Q16, psEnc->sCmn.nb_subfr * sizeof( SKP_int32 ) );
 
-        if( psEnc->sCmn.nFramesAnalyzed == 0 || psEnc->sCmn.LBRR_flags[ psEnc->sCmn.nFramesAnalyzed - 1 ] == 0 ) {
+        if( psEnc->sCmn.nFramesEncoded == 0 || psEnc->sCmn.LBRR_flags[ psEnc->sCmn.nFramesEncoded - 1 ] == 0 ) {
             /* First frame in packet or previous frame not LBRR coded */
             psEnc->sCmn.LBRRprevLastGainIndex = psEnc->sShape.LastGainIndex;
 
@@ -277,20 +277,20 @@ void SKP_Silk_LBRR_encode_FIX(
 
         /* Decode to get gains in sync with decoder         */
         /* Overwrite unquantized gains with quantized gains */
-        SKP_Silk_gains_dequant( psEncCtrl->Gains_Q16, psIndices_LBRR->GainsIndices, 
-            &psEnc->sCmn.LBRRprevLastGainIndex, psEnc->sCmn.nFramesAnalyzed, psEnc->sCmn.nb_subfr );
+        silk_gains_dequant( psEncCtrl->Gains_Q16, psIndices_LBRR->GainsIndices, 
+            &psEnc->sCmn.LBRRprevLastGainIndex, psEnc->sCmn.nFramesEncoded, psEnc->sCmn.nb_subfr );
 
         /*****************************************/
         /* Noise shaping quantization            */
         /*****************************************/
         if( psEnc->sCmn.nStatesDelayedDecision > 1 || psEnc->sCmn.warping_Q16 > 0 ) {
-            SKP_Silk_NSQ_del_dec( &psEnc->sCmn, &sNSQ_LBRR, psIndices_LBRR, xfw, 
-                psEnc->sCmn.pulses_LBRR[ psEnc->sCmn.nFramesAnalyzed ], psEncCtrl->PredCoef_Q12[ 0 ], psEncCtrl->LTPCoef_Q14, 
+            silk_NSQ_del_dec( &psEnc->sCmn, &sNSQ_LBRR, psIndices_LBRR, xfw, 
+                psEnc->sCmn.pulses_LBRR[ psEnc->sCmn.nFramesEncoded ], psEncCtrl->PredCoef_Q12[ 0 ], psEncCtrl->LTPCoef_Q14, 
                 psEncCtrl->AR2_Q13, psEncCtrl->HarmShapeGain_Q14, psEncCtrl->Tilt_Q14, psEncCtrl->LF_shp_Q14, 
                 psEncCtrl->Gains_Q16, psEncCtrl->pitchL, psEncCtrl->Lambda_Q10, psEncCtrl->LTP_scale_Q14 );
         } else {
-            SKP_Silk_NSQ( &psEnc->sCmn, &sNSQ_LBRR, psIndices_LBRR, xfw, 
-                psEnc->sCmn.pulses_LBRR[ psEnc->sCmn.nFramesAnalyzed ], psEncCtrl->PredCoef_Q12[ 0 ], psEncCtrl->LTPCoef_Q14, 
+            silk_NSQ( &psEnc->sCmn, &sNSQ_LBRR, psIndices_LBRR, xfw, 
+                psEnc->sCmn.pulses_LBRR[ psEnc->sCmn.nFramesEncoded ], psEncCtrl->PredCoef_Q12[ 0 ], psEncCtrl->LTPCoef_Q14, 
                 psEncCtrl->AR2_Q13, psEncCtrl->HarmShapeGain_Q14, psEncCtrl->Tilt_Q14, psEncCtrl->LF_shp_Q14, 
                 psEncCtrl->Gains_Q16, psEncCtrl->pitchL, psEncCtrl->Lambda_Q10, psEncCtrl->LTP_scale_Q14 );
         }
diff --git a/silk/fixed/SKP_Silk_find_LPC_FIX.c b/silk/fixed/silk_find_LPC_FIX.c
similarity index 81%
rename from silk/fixed/SKP_Silk_find_LPC_FIX.c
rename to silk/fixed/silk_find_LPC_FIX.c
index bf065db1..01d82467 100644
--- a/silk/fixed/SKP_Silk_find_LPC_FIX.c
+++ b/silk/fixed/silk_find_LPC_FIX.c
@@ -25,11 +25,11 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FIX.h"
-#include "SKP_Silk_tuning_parameters.h"
+#include "silk_main_FIX.h"
+#include "silk_tuning_parameters.h"
 
 /* Finds LPC vector from correlations, and converts to NLSF */
-void SKP_Silk_find_LPC_FIX(
+void silk_find_LPC_FIX(
     SKP_int16                       NLSF_Q15[],             /* O    NLSFs                                                           */
     SKP_int8                        *interpIndex,           /* O    NLSF interpolation index, only used for NLSF interpolation      */
     const SKP_int16                 prev_NLSFq_Q15[],       /* I    previous NLSFs, only used for NLSF interpolation                */
@@ -58,21 +58,21 @@ void SKP_Silk_find_LPC_FIX(
     *interpIndex = 4;
 
     /* Burg AR analysis for the full frame */
-    SKP_Silk_burg_modified( &res_nrg, &res_nrg_Q, a_Q16, x, subfr_length, nb_subfr, SKP_FIX_CONST( FIND_LPC_COND_FAC, 32 ), LPC_order );
+    silk_burg_modified( &res_nrg, &res_nrg_Q, a_Q16, x, subfr_length, nb_subfr, SILK_FIX_CONST( FIND_LPC_COND_FAC, 32 ), LPC_order );
 
     if( firstFrameAfterReset ) {
-        SKP_Silk_bwexpander_32( a_Q16, LPC_order, SKP_FIX_CONST( FIND_LPC_CHIRP_FIRST_FRAME, 16 ) );
+        silk_bwexpander_32( a_Q16, LPC_order, SILK_FIX_CONST( FIND_LPC_CHIRP_FIRST_FRAME, 16 ) );
     } else {
-        SKP_Silk_bwexpander_32( a_Q16, LPC_order, SKP_FIX_CONST( FIND_LPC_CHIRP, 16 ) );
+        silk_bwexpander_32( a_Q16, LPC_order, SILK_FIX_CONST( FIND_LPC_CHIRP, 16 ) );
     }
 
     if( useInterpNLSFs && !firstFrameAfterReset && nb_subfr == MAX_NB_SUBFR ) {
 
         /* Optimal solution for last 10 ms */
-        SKP_Silk_burg_modified( &res_tmp_nrg, &res_tmp_nrg_Q, a_tmp_Q16, x + ( MAX_NB_SUBFR >> 1 ) * subfr_length, 
-            subfr_length, ( MAX_NB_SUBFR >> 1 ), SKP_FIX_CONST( FIND_LPC_COND_FAC, 32 ), LPC_order );
+        silk_burg_modified( &res_tmp_nrg, &res_tmp_nrg_Q, a_tmp_Q16, x + ( MAX_NB_SUBFR >> 1 ) * subfr_length, 
+            subfr_length, ( MAX_NB_SUBFR >> 1 ), SILK_FIX_CONST( FIND_LPC_COND_FAC, 32 ), LPC_order );
 
-        SKP_Silk_bwexpander_32( a_tmp_Q16, LPC_order, SKP_FIX_CONST( FIND_LPC_CHIRP, 16 ) );
+        silk_bwexpander_32( a_tmp_Q16, LPC_order, SILK_FIX_CONST( FIND_LPC_CHIRP, 16 ) );
 
         /* subtract residual energy here, as that's easier than adding it to the    */
         /* residual energy of the first 10 ms in each iteration of the search below */
@@ -88,22 +88,22 @@ void SKP_Silk_find_LPC_FIX(
         }
         
         /* Convert to NLSFs */
-        SKP_Silk_A2NLSF( NLSF_Q15, a_tmp_Q16, LPC_order );
+        silk_A2NLSF( NLSF_Q15, a_tmp_Q16, LPC_order );
 
         /* Search over interpolation indices to find the one with lowest residual energy */
         res_nrg_2nd = SKP_int32_MAX;
         for( k = 3; k >= 0; k-- ) {
             /* Interpolate NLSFs for first half */
-            SKP_Silk_interpolate( NLSF0_Q15, prev_NLSFq_Q15, NLSF_Q15, k, LPC_order );
+            silk_interpolate( NLSF0_Q15, prev_NLSFq_Q15, NLSF_Q15, k, LPC_order );
 
             /* Convert to LPC for residual energy evaluation */
-            SKP_Silk_NLSF2A_stable( a_tmp_Q12, NLSF0_Q15, LPC_order );
+            silk_NLSF2A_stable( a_tmp_Q12, NLSF0_Q15, LPC_order );
 
             /* Calculate residual energy with NLSF interpolation */
-            SKP_Silk_LPC_analysis_filter( LPC_res, x, a_tmp_Q12, 2 * subfr_length, LPC_order );
+            silk_LPC_analysis_filter( LPC_res, x, a_tmp_Q12, 2 * subfr_length, LPC_order );
 
-            SKP_Silk_sum_sqr_shift( &res_nrg0, &rshift0, LPC_res + LPC_order,                subfr_length - LPC_order );
-            SKP_Silk_sum_sqr_shift( &res_nrg1, &rshift1, LPC_res + LPC_order + subfr_length, subfr_length - LPC_order );
+            silk_sum_sqr_shift( &res_nrg0, &rshift0, LPC_res + LPC_order,                subfr_length - LPC_order );
+            silk_sum_sqr_shift( &res_nrg1, &rshift1, LPC_res + LPC_order + subfr_length, subfr_length - LPC_order );
 
             /* Add subframe energies from first half frame */
             shift = rshift0 - rshift1;
@@ -150,7 +150,7 @@ void SKP_Silk_find_LPC_FIX(
 
     if( *interpIndex == 4 ) {
         /* NLSF interpolation is currently inactive, calculate NLSFs from full frame AR coefficients */
-        SKP_Silk_A2NLSF( NLSF_Q15, a_Q16, LPC_order );
+        silk_A2NLSF( NLSF_Q15, a_Q16, LPC_order );
     }
 
     SKP_assert( *interpIndex == 4 || ( useInterpNLSFs && !firstFrameAfterReset && nb_subfr == MAX_NB_SUBFR ) );
diff --git a/silk/fixed/SKP_Silk_find_LTP_FIX.c b/silk/fixed/silk_find_LTP_FIX.c
similarity index 81%
rename from silk/fixed/SKP_Silk_find_LTP_FIX.c
rename to silk/fixed/silk_find_LTP_FIX.c
index 50aeb562..21b28d3d 100644
--- a/silk/fixed/SKP_Silk_find_LTP_FIX.c
+++ b/silk/fixed/silk_find_LTP_FIX.c
@@ -25,18 +25,18 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FIX.h"
-#include "SKP_Silk_tuning_parameters.h"
+#include "silk_main_FIX.h"
+#include "silk_tuning_parameters.h"
 
 /* Head room for correlations                           */
 #define LTP_CORRS_HEAD_ROOM                             2
 
-void SKP_Silk_fit_LTP(
+void silk_fit_LTP(
     SKP_int32 LTP_coefs_Q16[ LTP_ORDER ],
     SKP_int16 LTP_coefs_Q14[ LTP_ORDER ]
 );
 
-void SKP_Silk_find_LTP_FIX(
+void silk_find_LTP_FIX(
     SKP_int16           b_Q14[ MAX_NB_SUBFR * LTP_ORDER ],              /* O    LTP coefs                                                   */
     SKP_int32           WLTP[ MAX_NB_SUBFR * LTP_ORDER * LTP_ORDER ],   /* O    Weight for LTP quantization                                 */
     SKP_int             *LTPredCodGain_Q7,                              /* O    LTP coding gain                                             */
@@ -71,37 +71,37 @@ void SKP_Silk_find_LTP_FIX(
     for( k = 0; k < nb_subfr; k++ ) {
         lag_ptr = r_ptr - ( lag[ k ] + LTP_ORDER / 2 );
 
-        SKP_Silk_sum_sqr_shift( &rr[ k ], &rr_shifts, r_ptr, subfr_length ); /* rr[ k ] in Q( -rr_shifts ) */
+        silk_sum_sqr_shift( &rr[ k ], &rr_shifts, r_ptr, subfr_length ); /* rr[ k ] in Q( -rr_shifts ) */
 
         /* Assure headroom */
-        LZs = SKP_Silk_CLZ32( rr[k] );
+        LZs = silk_CLZ32( rr[k] );
         if( LZs < LTP_CORRS_HEAD_ROOM ) {
             rr[ k ] = SKP_RSHIFT_ROUND( rr[ k ], LTP_CORRS_HEAD_ROOM - LZs );
             rr_shifts += ( LTP_CORRS_HEAD_ROOM - LZs );
         }
         corr_rshifts[ k ] = rr_shifts;
-        SKP_Silk_corrMatrix_FIX( lag_ptr, subfr_length, LTP_ORDER, LTP_CORRS_HEAD_ROOM, WLTP_ptr, &corr_rshifts[ k ] );  /* WLTP_fix_ptr in Q( -corr_rshifts[ k ] ) */
+        silk_corrMatrix_FIX( lag_ptr, subfr_length, LTP_ORDER, LTP_CORRS_HEAD_ROOM, WLTP_ptr, &corr_rshifts[ k ] );  /* WLTP_fix_ptr in Q( -corr_rshifts[ k ] ) */
 
         /* The correlation vector always has lower max abs value than rr and/or RR so head room is assured */
-        SKP_Silk_corrVector_FIX( lag_ptr, r_ptr, subfr_length, LTP_ORDER, Rr, corr_rshifts[ k ] );  /* Rr_fix_ptr   in Q( -corr_rshifts[ k ] ) */
+        silk_corrVector_FIX( lag_ptr, r_ptr, subfr_length, LTP_ORDER, Rr, corr_rshifts[ k ] );  /* Rr_fix_ptr   in Q( -corr_rshifts[ k ] ) */
         if( corr_rshifts[ k ] > rr_shifts ) {
             rr[ k ] = SKP_RSHIFT( rr[ k ], corr_rshifts[ k ] - rr_shifts ); /* rr[ k ] in Q( -corr_rshifts[ k ] ) */
         }
         SKP_assert( rr[ k ] >= 0 );
 
         regu = 1;
-        regu = SKP_SMLAWB( regu, rr[ k ], SKP_FIX_CONST( LTP_DAMPING/3, 16 ) );
-        regu = SKP_SMLAWB( regu, matrix_ptr( WLTP_ptr, 0, 0, LTP_ORDER ), SKP_FIX_CONST( LTP_DAMPING/3, 16 ) );
-        regu = SKP_SMLAWB( regu, matrix_ptr( WLTP_ptr, LTP_ORDER-1, LTP_ORDER-1, LTP_ORDER ), SKP_FIX_CONST( LTP_DAMPING/3, 16 ) );
-        SKP_Silk_regularize_correlations_FIX( WLTP_ptr, &rr[k], regu, LTP_ORDER );
+        regu = SKP_SMLAWB( regu, rr[ k ], SILK_FIX_CONST( LTP_DAMPING/3, 16 ) );
+        regu = SKP_SMLAWB( regu, matrix_ptr( WLTP_ptr, 0, 0, LTP_ORDER ), SILK_FIX_CONST( LTP_DAMPING/3, 16 ) );
+        regu = SKP_SMLAWB( regu, matrix_ptr( WLTP_ptr, LTP_ORDER-1, LTP_ORDER-1, LTP_ORDER ), SILK_FIX_CONST( LTP_DAMPING/3, 16 ) );
+        silk_regularize_correlations_FIX( WLTP_ptr, &rr[k], regu, LTP_ORDER );
 
-        SKP_Silk_solve_LDL_FIX( WLTP_ptr, LTP_ORDER, Rr, b_Q16 ); /* WLTP_fix_ptr and Rr_fix_ptr both in Q(-corr_rshifts[k]) */
+        silk_solve_LDL_FIX( WLTP_ptr, LTP_ORDER, Rr, b_Q16 ); /* WLTP_fix_ptr and Rr_fix_ptr both in Q(-corr_rshifts[k]) */
 
         /* Limit and store in Q14 */
-        SKP_Silk_fit_LTP( b_Q16, b_Q14_ptr );
+        silk_fit_LTP( b_Q16, b_Q14_ptr );
 
         /* Calculate residual energy */
-        nrg[ k ] = SKP_Silk_residual_energy16_covar_FIX( b_Q14_ptr, WLTP_ptr, Rr, rr[ k ], LTP_ORDER, 14 ); /* nrg_fix in Q( -corr_rshifts[ k ] ) */
+        nrg[ k ] = silk_residual_energy16_covar_FIX( b_Q14_ptr, WLTP_ptr, Rr, rr[ k ], LTP_ORDER, 14 ); /* nrg_fix in Q( -corr_rshifts[ k ] ) */
 
         /* temp = Wght[ k ] / ( nrg[ k ] * Wght[ k ] + 0.01f * subfr_length ); */
         extra_shifts = SKP_min_int( corr_rshifts[ k ], LTP_CORRS_HEAD_ROOM );
@@ -117,13 +117,13 @@ void SKP_Silk_find_LTP_FIX(
         for( i = 0; i < LTP_ORDER * LTP_ORDER; i++ ) {
             WLTP_max = SKP_max( WLTP_ptr[ i ], WLTP_max );
         }
-        lshift = SKP_Silk_CLZ32( WLTP_max ) - 1 - 3; /* keep 3 bits free for vq_nearest_neighbor_fix */
+        lshift = silk_CLZ32( WLTP_max ) - 1 - 3; /* keep 3 bits free for vq_nearest_neighbor_fix */
         SKP_assert( 26 - 18 + lshift >= 0 );
         if( 26 - 18 + lshift < 31 ) {
             temp32 = SKP_min_32( temp32, SKP_LSHIFT( ( SKP_int32 )1, 26 - 18 + lshift ) );
         }
 
-        SKP_Silk_scale_vector32_Q26_lshift_18( WLTP_ptr, temp32, LTP_ORDER * LTP_ORDER ); /* WLTP_ptr in Q( 18 - corr_rshifts[ k ] ) */
+        silk_scale_vector32_Q26_lshift_18( WLTP_ptr, temp32, LTP_ORDER * LTP_ORDER ); /* WLTP_ptr in Q( 18 - corr_rshifts[ k ] ) */
         
         w[ k ] = matrix_ptr( WLTP_ptr, LTP_ORDER/2, LTP_ORDER/2, LTP_ORDER ); /* w in Q( 18 - corr_rshifts[ k ] ) */
         SKP_assert( w[k] >= 0 );
@@ -149,10 +149,10 @@ void SKP_Silk_find_LTP_FIX(
         }
         LPC_LTP_res_nrg = SKP_max( LPC_LTP_res_nrg, 1 ); /* avoid division by zero */
 
-        div_Q16 = SKP_DIV32_varQ( LPC_res_nrg, LPC_LTP_res_nrg, 16 );
-        *LTPredCodGain_Q7 = ( SKP_int )SKP_SMULBB( 3, SKP_Silk_lin2log( div_Q16 ) - ( 16 << 7 ) );
+        div_Q16 = silk_DIV32_varQ( LPC_res_nrg, LPC_LTP_res_nrg, 16 );
+        *LTPredCodGain_Q7 = ( SKP_int )SKP_SMULBB( 3, silk_lin2log( div_Q16 ) - ( 16 << 7 ) );
 
-        SKP_assert( *LTPredCodGain_Q7 == ( SKP_int )SKP_SAT16( SKP_MUL( 3, SKP_Silk_lin2log( div_Q16 ) - ( 16 << 7 ) ) ) );
+        SKP_assert( *LTPredCodGain_Q7 == ( SKP_int )SKP_SAT16( SKP_MUL( 3, silk_lin2log( div_Q16 ) - ( 16 << 7 ) ) ) );
     }
 
     /* smoothing */
@@ -175,14 +175,14 @@ void SKP_Silk_find_LTP_FIX(
         max_abs_d_Q14 = SKP_max_32( max_abs_d_Q14, SKP_abs( d_Q14[ k ] ) );
         /* w[ k ] is in Q( 18 - corr_rshifts[ k ] ) */
         /* Find bits needed in Q( 18 - maxRshifts ) */
-        max_w_bits = SKP_max_32( max_w_bits, 32 - SKP_Silk_CLZ32( w[ k ] ) + corr_rshifts[ k ] - maxRshifts ); 
+        max_w_bits = SKP_max_32( max_w_bits, 32 - silk_CLZ32( w[ k ] ) + corr_rshifts[ k ] - maxRshifts ); 
     }
 
     /* max_abs_d_Q14 = (5 << 15); worst case, i.e. LTP_ORDER * -SKP_int16_MIN */
     SKP_assert( max_abs_d_Q14 <= ( 5 << 15 ) );
 
     /* How many bits is needed for w*d' in Q( 18 - maxRshifts ) in the worst case, of all d_Q14's being equal to max_abs_d_Q14 */
-    extra_shifts = max_w_bits + 32 - SKP_Silk_CLZ32( max_abs_d_Q14 ) - 14;
+    extra_shifts = max_w_bits + 32 - silk_CLZ32( max_abs_d_Q14 ) - 14;
     
     /* Subtract what we got available; bits in output var plus maxRshifts */
     extra_shifts -= ( 32 - 1 - 2 + maxRshifts ); /* Keep sign bit free as well as 2 bits for accumulation */
@@ -197,7 +197,7 @@ void SKP_Silk_find_LTP_FIX(
         temp32 = SKP_ADD32( temp32,                     SKP_RSHIFT( w[ k ], maxRshifts_wxtra - corr_rshifts[ k ] ) );                    /* Q( 18 - maxRshifts_wxtra ) */
         wd     = SKP_ADD32( wd, SKP_LSHIFT( SKP_SMULWW( SKP_RSHIFT( w[ k ], maxRshifts_wxtra - corr_rshifts[ k ] ), d_Q14[ k ] ), 2 ) ); /* Q( 18 - maxRshifts_wxtra ) */
     }
-    m_Q12 = SKP_DIV32_varQ( wd, temp32, 12 );
+    m_Q12 = silk_DIV32_varQ( wd, temp32, 12 );
 
     b_Q14_ptr = b_Q14;
     for( k = 0; k < nb_subfr; k++ ) {
@@ -210,8 +210,8 @@ void SKP_Silk_find_LTP_FIX(
 
         g_Q26 = SKP_MUL( 
             SKP_DIV32( 
-                SKP_FIX_CONST( LTP_SMOOTHING, 26 ), 
-                SKP_RSHIFT( SKP_FIX_CONST( LTP_SMOOTHING, 26 ), 10 ) + temp32 ),                                       /* Q10 */ 
+                SILK_FIX_CONST( LTP_SMOOTHING, 26 ), 
+                SKP_RSHIFT( SILK_FIX_CONST( LTP_SMOOTHING, 26 ), 10 ) + temp32 ),                                       /* Q10 */ 
             SKP_LSHIFT_SAT32( SKP_SUB_SAT32( ( SKP_int32 )m_Q12, SKP_RSHIFT( d_Q14[ k ], 2 ) ), 4 ) );  /* Q16 */
 
         temp32 = 0;
@@ -228,7 +228,7 @@ void SKP_Silk_find_LTP_FIX(
 TOC(find_LTP_FIX)
 }
 
-void SKP_Silk_fit_LTP(
+void silk_fit_LTP(
     SKP_int32 LTP_coefs_Q16[ LTP_ORDER ],
     SKP_int16 LTP_coefs_Q14[ LTP_ORDER ]
 )
diff --git a/silk/fixed/SKP_Silk_find_pitch_lags_FIX.c b/silk/fixed/silk_find_pitch_lags_FIX.c
similarity index 74%
rename from silk/fixed/SKP_Silk_find_pitch_lags_FIX.c
rename to silk/fixed/silk_find_pitch_lags_FIX.c
index bfc3e36b..d6c4ee89 100644
--- a/silk/fixed/SKP_Silk_find_pitch_lags_FIX.c
+++ b/silk/fixed/silk_find_pitch_lags_FIX.c
@@ -25,13 +25,13 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FIX.h"
-#include "SKP_Silk_tuning_parameters.h"
+#include "silk_main_FIX.h"
+#include "silk_tuning_parameters.h"
 
 /* Find pitch lags */
-void SKP_Silk_find_pitch_lags_FIX(
-    SKP_Silk_encoder_state_FIX      *psEnc,         /* I/O  encoder state                               */
-    SKP_Silk_encoder_control_FIX    *psEncCtrl,     /* I/O  encoder control                             */
+void silk_find_pitch_lags_FIX(
+    silk_encoder_state_FIX          *psEnc,         /* I/O  encoder state                               */
+    silk_encoder_control_FIX        *psEncCtrl,     /* I/O  encoder control                             */
     SKP_int16                       res[],          /* O    residual                                    */
     const SKP_int16                 x[]             /* I    Speech signal                               */
 )
@@ -64,7 +64,7 @@ void SKP_Silk_find_pitch_lags_FIX(
     /* First LA_LTP samples */
     x_buf_ptr = x_buf + buf_len - psEnc->sCmn.pitch_LPC_win_length;
     Wsig_ptr  = Wsig;
-    SKP_Silk_apply_sine_window( Wsig_ptr, x_buf_ptr, 1, psEnc->sCmn.la_pitch );
+    silk_apply_sine_window( Wsig_ptr, x_buf_ptr, 1, psEnc->sCmn.la_pitch );
 
     /* Middle un - windowed samples */
     Wsig_ptr  += psEnc->sCmn.la_pitch;
@@ -74,22 +74,22 @@ void SKP_Silk_find_pitch_lags_FIX(
     /* Last LA_LTP samples */
     Wsig_ptr  += psEnc->sCmn.pitch_LPC_win_length - SKP_LSHIFT( psEnc->sCmn.la_pitch, 1 );
     x_buf_ptr += psEnc->sCmn.pitch_LPC_win_length - SKP_LSHIFT( psEnc->sCmn.la_pitch, 1 );
-    SKP_Silk_apply_sine_window( Wsig_ptr, x_buf_ptr, 2, psEnc->sCmn.la_pitch );
+    silk_apply_sine_window( Wsig_ptr, x_buf_ptr, 2, psEnc->sCmn.la_pitch );
 
     /* Calculate autocorrelation sequence */
-    SKP_Silk_autocorr( auto_corr, &scale, Wsig, psEnc->sCmn.pitch_LPC_win_length, psEnc->sCmn.pitchEstimationLPCOrder + 1 ); 
+    silk_autocorr( auto_corr, &scale, Wsig, psEnc->sCmn.pitch_LPC_win_length, psEnc->sCmn.pitchEstimationLPCOrder + 1 ); 
         
     /* Add white noise, as fraction of energy */
-    auto_corr[ 0 ] = SKP_SMLAWB( auto_corr[ 0 ], auto_corr[ 0 ], SKP_FIX_CONST( FIND_PITCH_WHITE_NOISE_FRACTION, 16 ) ) + 1;
+    auto_corr[ 0 ] = SKP_SMLAWB( auto_corr[ 0 ], auto_corr[ 0 ], SILK_FIX_CONST( FIND_PITCH_WHITE_NOISE_FRACTION, 16 ) ) + 1;
 
     /* Calculate the reflection coefficients using schur */
-    res_nrg = SKP_Silk_schur( rc_Q15, auto_corr, psEnc->sCmn.pitchEstimationLPCOrder );
+    res_nrg = silk_schur( rc_Q15, auto_corr, psEnc->sCmn.pitchEstimationLPCOrder );
 
     /* Prediction gain */
-    psEncCtrl->predGain_Q16 = SKP_DIV32_varQ( auto_corr[ 0 ], SKP_max_int( res_nrg, 1 ), 16 );
+    psEncCtrl->predGain_Q16 = silk_DIV32_varQ( auto_corr[ 0 ], SKP_max_int( res_nrg, 1 ), 16 );
 
     /* Convert reflection coefficients to prediction coefficients */
-    SKP_Silk_k2a( A_Q24, rc_Q15, psEnc->sCmn.pitchEstimationLPCOrder );
+    silk_k2a( A_Q24, rc_Q15, psEnc->sCmn.pitchEstimationLPCOrder );
     
     /* Convert From 32 bit Q24 to 16 bit Q12 coefs */
     for( i = 0; i < psEnc->sCmn.pitchEstimationLPCOrder; i++ ) {
@@ -97,26 +97,26 @@ void SKP_Silk_find_pitch_lags_FIX(
     }
 
     /* Do BWE */
-    SKP_Silk_bwexpander( A_Q12, psEnc->sCmn.pitchEstimationLPCOrder, SKP_FIX_CONST( FIND_PITCH_BANDWITH_EXPANSION, 16 ) );
+    silk_bwexpander( A_Q12, psEnc->sCmn.pitchEstimationLPCOrder, SILK_FIX_CONST( FIND_PITCH_BANDWITH_EXPANSION, 16 ) );
     
     /*****************************************/
     /* LPC analysis filtering                */
     /*****************************************/
-    SKP_Silk_LPC_analysis_filter( res, x_buf, A_Q12, buf_len, psEnc->sCmn.pitchEstimationLPCOrder );
+    silk_LPC_analysis_filter( res, x_buf, A_Q12, buf_len, psEnc->sCmn.pitchEstimationLPCOrder );
 
     if( psEnc->sCmn.indices.signalType != TYPE_NO_VOICE_ACTIVITY && psEnc->sCmn.first_frame_after_reset == 0 ) {
         /* Threshold for pitch estimator */
-        thrhld_Q15 = SKP_FIX_CONST( 0.6, 15 );
-        thrhld_Q15 = SKP_SMLABB( thrhld_Q15, SKP_FIX_CONST( -0.004, 15 ), psEnc->sCmn.pitchEstimationLPCOrder );
-        thrhld_Q15 = SKP_SMLABB( thrhld_Q15, SKP_FIX_CONST( -0.1,   7  ), psEnc->sCmn.speech_activity_Q8 );
-        thrhld_Q15 = SKP_SMLABB( thrhld_Q15, SKP_FIX_CONST( -0.15,  15 ), SKP_RSHIFT( psEnc->sCmn.prevSignalType, 1 ) );
-        thrhld_Q15 = SKP_SMLAWB( thrhld_Q15, SKP_FIX_CONST( -0.1,   16 ), psEnc->sCmn.input_tilt_Q15 );
+        thrhld_Q15 = SILK_FIX_CONST( 0.6, 15 );
+        thrhld_Q15 = SKP_SMLABB( thrhld_Q15, SILK_FIX_CONST( -0.004, 15 ), psEnc->sCmn.pitchEstimationLPCOrder );
+        thrhld_Q15 = SKP_SMLABB( thrhld_Q15, SILK_FIX_CONST( -0.1,   7  ), psEnc->sCmn.speech_activity_Q8 );
+        thrhld_Q15 = SKP_SMLABB( thrhld_Q15, SILK_FIX_CONST( -0.15,  15 ), SKP_RSHIFT( psEnc->sCmn.prevSignalType, 1 ) );
+        thrhld_Q15 = SKP_SMLAWB( thrhld_Q15, SILK_FIX_CONST( -0.1,   16 ), psEnc->sCmn.input_tilt_Q15 );
         thrhld_Q15 = SKP_SAT16(  thrhld_Q15 );
 
         /*****************************************/
         /* Call pitch estimator                  */
         /*****************************************/
-        if( SKP_Silk_pitch_analysis_core( res, psEncCtrl->pitchL, &psEnc->sCmn.indices.lagIndex, &psEnc->sCmn.indices.contourIndex, 
+        if( silk_pitch_analysis_core( res, psEncCtrl->pitchL, &psEnc->sCmn.indices.lagIndex, &psEnc->sCmn.indices.contourIndex, 
                 &psEnc->LTPCorr_Q15, psEnc->sCmn.prevLag, psEnc->sCmn.pitchEstimationThreshold_Q16, 
                 ( SKP_int16 )thrhld_Q15, psEnc->sCmn.fs_kHz, psEnc->sCmn.pitchEstimationComplexity, psEnc->sCmn.nb_subfr ) == 0 ) 
         {
diff --git a/silk/fixed/SKP_Silk_find_pred_coefs_FIX.c b/silk/fixed/silk_find_pred_coefs_FIX.c
similarity index 82%
rename from silk/fixed/SKP_Silk_find_pred_coefs_FIX.c
rename to silk/fixed/silk_find_pred_coefs_FIX.c
index 033a5a09..21885b4d 100644
--- a/silk/fixed/SKP_Silk_find_pred_coefs_FIX.c
+++ b/silk/fixed/silk_find_pred_coefs_FIX.c
@@ -25,11 +25,11 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FIX.h"
+#include "silk_main_FIX.h"
 
-void SKP_Silk_find_pred_coefs_FIX(
-    SKP_Silk_encoder_state_FIX      *psEnc,         /* I/O  encoder state                               */
-    SKP_Silk_encoder_control_FIX    *psEncCtrl,     /* I/O  encoder control                             */
+void silk_find_pred_coefs_FIX(
+    silk_encoder_state_FIX          *psEnc,         /* I/O  encoder state                               */
+    silk_encoder_control_FIX        *psEncCtrl,     /* I/O  encoder control                             */
     const SKP_int16                 res_pitch[],    /* I    Residual from pitch analysis                */
     const SKP_int16                 x[]             /* I    Speech signal                               */
 )
@@ -52,7 +52,7 @@ void SKP_Silk_find_pred_coefs_FIX(
         /* Divide to Q16 */
         SKP_assert( psEncCtrl->Gains_Q16[ i ] > 0 );
         /* Invert and normalize gains, and ensure that maximum invGains_Q16 is within range of a 16 bit int */
-        invGains_Q16[ i ] = SKP_DIV32_varQ( min_gain_Q16, psEncCtrl->Gains_Q16[ i ], 16 - 2 );
+        invGains_Q16[ i ] = silk_DIV32_varQ( min_gain_Q16, psEncCtrl->Gains_Q16[ i ], 16 - 2 );
 
         /* Ensure Wght_Q15 a minimum value 1 */
         invGains_Q16[ i ] = SKP_max( invGains_Q16[ i ], 363 ); 
@@ -73,19 +73,19 @@ void SKP_Silk_find_pred_coefs_FIX(
         SKP_assert( psEnc->sCmn.ltp_mem_length - psEnc->sCmn.predictLPCOrder >= psEncCtrl->pitchL[ 0 ] + LTP_ORDER / 2 );
 
         /* LTP analysis */
-        SKP_Silk_find_LTP_FIX( psEncCtrl->LTPCoef_Q14, WLTP, &psEncCtrl->LTPredCodGain_Q7, 
+        silk_find_LTP_FIX( psEncCtrl->LTPCoef_Q14, WLTP, &psEncCtrl->LTPredCodGain_Q7, 
             res_pitch, psEncCtrl->pitchL, Wght_Q15, psEnc->sCmn.subfr_length, 
             psEnc->sCmn.nb_subfr, psEnc->sCmn.ltp_mem_length, LTP_corrs_rshift );
 
         /* Quantize LTP gain parameters */
-        SKP_Silk_quant_LTP_gains( psEncCtrl->LTPCoef_Q14, psEnc->sCmn.indices.LTPIndex, &psEnc->sCmn.indices.PERIndex, 
+        silk_quant_LTP_gains( psEncCtrl->LTPCoef_Q14, psEnc->sCmn.indices.LTPIndex, &psEnc->sCmn.indices.PERIndex, 
             WLTP, psEnc->sCmn.mu_LTP_Q9, psEnc->sCmn.LTPQuantLowComplexity, psEnc->sCmn.nb_subfr);
 
         /* Control LTP scaling */
-        SKP_Silk_LTP_scale_ctrl_FIX( psEnc, psEncCtrl );
+        silk_LTP_scale_ctrl_FIX( psEnc, psEncCtrl );
 
         /* Create LTP residual */
-        SKP_Silk_LTP_analysis_filter_FIX( LPC_in_pre, x - psEnc->sCmn.predictLPCOrder, psEncCtrl->LTPCoef_Q14, 
+        silk_LTP_analysis_filter_FIX( LPC_in_pre, x - psEnc->sCmn.predictLPCOrder, psEncCtrl->LTPCoef_Q14, 
             psEncCtrl->pitchL, invGains_Q16, psEnc->sCmn.subfr_length, psEnc->sCmn.nb_subfr, psEnc->sCmn.predictLPCOrder );
 
     } else {
@@ -96,7 +96,7 @@ void SKP_Silk_find_pred_coefs_FIX(
         x_ptr     = x - psEnc->sCmn.predictLPCOrder;
         x_pre_ptr = LPC_in_pre;
         for( i = 0; i < psEnc->sCmn.nb_subfr; i++ ) {
-            SKP_Silk_scale_copy_vector16( x_pre_ptr, x_ptr, invGains_Q16[ i ], 
+            silk_scale_copy_vector16( x_pre_ptr, x_ptr, invGains_Q16[ i ], 
                 psEnc->sCmn.subfr_length + psEnc->sCmn.predictLPCOrder );
             x_pre_ptr += psEnc->sCmn.subfr_length + psEnc->sCmn.predictLPCOrder;
             x_ptr     += psEnc->sCmn.subfr_length;
@@ -108,18 +108,18 @@ void SKP_Silk_find_pred_coefs_FIX(
 
     /* LPC_in_pre contains the LTP-filtered input for voiced, and the unfiltered input for unvoiced */
     TIC(FIND_LPC)
-    SKP_Silk_find_LPC_FIX( NLSF_Q15, &psEnc->sCmn.indices.NLSFInterpCoef_Q2, psEnc->sCmn.prev_NLSFq_Q15, 
+    silk_find_LPC_FIX( NLSF_Q15, &psEnc->sCmn.indices.NLSFInterpCoef_Q2, psEnc->sCmn.prev_NLSFq_Q15, 
         psEnc->sCmn.useInterpolatedNLSFs, psEnc->sCmn.first_frame_after_reset, psEnc->sCmn.predictLPCOrder, 
         LPC_in_pre, psEnc->sCmn.subfr_length + psEnc->sCmn.predictLPCOrder, psEnc->sCmn.nb_subfr );
     TOC(FIND_LPC)
 
     /* Quantize LSFs */
     TIC(PROCESS_LSFS)
-    SKP_Silk_process_NLSFs( &psEnc->sCmn, psEncCtrl->PredCoef_Q12, NLSF_Q15, psEnc->sCmn.prev_NLSFq_Q15 );
+    silk_process_NLSFs( &psEnc->sCmn, psEncCtrl->PredCoef_Q12, NLSF_Q15, psEnc->sCmn.prev_NLSFq_Q15 );
     TOC(PROCESS_LSFS)
 
     /* Calculate residual energy using quantized LPC coefficients */
-    SKP_Silk_residual_energy_FIX( psEncCtrl->ResNrg, psEncCtrl->ResNrgQ, LPC_in_pre, psEncCtrl->PredCoef_Q12, local_gains,
+    silk_residual_energy_FIX( psEncCtrl->ResNrg, psEncCtrl->ResNrgQ, LPC_in_pre, psEncCtrl->PredCoef_Q12, local_gains,
         psEnc->sCmn.subfr_length, psEnc->sCmn.nb_subfr, psEnc->sCmn.predictLPCOrder );
 
     /* Copy to prediction struct for use in next frame for fluctuation reduction */
diff --git a/silk/fixed/silk_fixed.vcxproj b/silk/fixed/silk_fixed.vcxproj
index 004b0329..10840bed 100644
--- a/silk/fixed/silk_fixed.vcxproj
+++ b/silk/fixed/silk_fixed.vcxproj
@@ -86,26 +86,28 @@
     <None Include="ReadMe.txt" />
   </ItemGroup>
   <ItemGroup>
-    <ClCompile Include="SKP_Silk_corrMatrix_FIX.c" />
-    <ClCompile Include="SKP_Silk_encode_frame_FIX.c" />
-    <ClCompile Include="SKP_Silk_find_LPC_FIX.c" />
-    <ClCompile Include="SKP_Silk_find_LTP_FIX.c" />
-    <ClCompile Include="SKP_Silk_find_pitch_lags_FIX.c" />
-    <ClCompile Include="SKP_Silk_find_pred_coefs_FIX.c" />
-    <ClCompile Include="SKP_Silk_LTP_analysis_filter_FIX.c" />
-    <ClCompile Include="SKP_Silk_LTP_scale_ctrl_FIX.c" />
-    <ClCompile Include="SKP_Silk_noise_shape_analysis_FIX.c" />
-    <ClCompile Include="SKP_Silk_prefilter_FIX.c" />
-    <ClCompile Include="SKP_Silk_process_gains_FIX.c" />
-    <ClCompile Include="SKP_Silk_regularize_correlations_FIX.c" />
-    <ClCompile Include="SKP_Silk_residual_energy16_FIX.c" />
-    <ClCompile Include="SKP_Silk_residual_energy_FIX.c" />
-    <ClCompile Include="SKP_Silk_solve_LS_FIX.c" />
-    <ClCompile Include="SKP_Silk_warped_autocorrelation_FIX.c" />
+    <ClCompile Include="silk_corrMatrix_FIX.c" />
+    <ClCompile Include="silk_encode_frame_FIX.c" />
+    <ClCompile Include="silk_find_LPC_FIX.c" />
+    <ClCompile Include="silk_find_LTP_FIX.c" />
+    <ClCompile Include="silk_find_pitch_lags_FIX.c" />
+    <ClCompile Include="silk_find_pred_coefs_FIX.c" />
+    <ClCompile Include="silk_LTP_analysis_filter_FIX.c" />
+    <ClCompile Include="silk_LTP_scale_ctrl_FIX.c" />
+    <ClCompile Include="silk_noise_shape_analysis_FIX.c" />
+    <ClCompile Include="silk_prefilter_FIX.c" />
+    <ClCompile Include="silk_process_gains_FIX.c" />
+    <ClCompile Include="silk_regularize_correlations_FIX.c" />
+    <ClCompile Include="silk_residual_energy16_FIX.c" />
+    <ClCompile Include="silk_residual_energy_FIX.c" />
+    <ClCompile Include="silk_solve_LS_FIX.c" />
+    <ClCompile Include="silk_warped_autocorrelation_FIX.c" />
   </ItemGroup>
   <ItemGroup>
-    <ClInclude Include="SKP_Silk_main_FIX.h" />
-    <ClInclude Include="SKP_Silk_structs_FIX.h" />
+    <ClInclude Include="..\..\win32\config.h" />
+    <ClInclude Include="..\silk_SigProc_FIX.h" />
+    <ClInclude Include="silk_main_FIX.h" />
+    <ClInclude Include="silk_structs_FIX.h" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
diff --git a/silk/fixed/silk_fixed.vcxproj.filters b/silk/fixed/silk_fixed.vcxproj.filters
index 49c8f28d..4fbb3696 100644
--- a/silk/fixed/silk_fixed.vcxproj.filters
+++ b/silk/fixed/silk_fixed.vcxproj.filters
@@ -18,60 +18,66 @@
     <None Include="ReadMe.txt" />
   </ItemGroup>
   <ItemGroup>
-    <ClCompile Include="SKP_Silk_LTP_scale_ctrl_FIX.c">
+    <ClCompile Include="silk_corrMatrix_FIX.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_noise_shape_analysis_FIX.c">
+    <ClCompile Include="silk_encode_frame_FIX.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_prefilter_FIX.c">
+    <ClCompile Include="silk_find_LPC_FIX.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_process_gains_FIX.c">
+    <ClCompile Include="silk_find_LTP_FIX.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_regularize_correlations_FIX.c">
+    <ClCompile Include="silk_find_pitch_lags_FIX.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_residual_energy_FIX.c">
+    <ClCompile Include="silk_find_pred_coefs_FIX.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_residual_energy16_FIX.c">
+    <ClCompile Include="silk_LTP_analysis_filter_FIX.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_solve_LS_FIX.c">
+    <ClCompile Include="silk_LTP_scale_ctrl_FIX.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_warped_autocorrelation_FIX.c">
+    <ClCompile Include="silk_noise_shape_analysis_FIX.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_corrMatrix_FIX.c">
+    <ClCompile Include="silk_prefilter_FIX.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_encode_frame_FIX.c">
+    <ClCompile Include="silk_process_gains_FIX.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_find_LPC_FIX.c">
+    <ClCompile Include="silk_regularize_correlations_FIX.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_find_LTP_FIX.c">
+    <ClCompile Include="silk_residual_energy16_FIX.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_find_pitch_lags_FIX.c">
+    <ClCompile Include="silk_residual_energy_FIX.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_find_pred_coefs_FIX.c">
+    <ClCompile Include="silk_solve_LS_FIX.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_LTP_analysis_filter_FIX.c">
+    <ClCompile Include="silk_warped_autocorrelation_FIX.c">
       <Filter>Source Files</Filter>
     </ClCompile>
   </ItemGroup>
   <ItemGroup>
-    <ClInclude Include="SKP_Silk_main_FIX.h">
+    <ClInclude Include="..\..\win32\config.h">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="SKP_Silk_structs_FIX.h">
+    <ClInclude Include="silk_main_FIX.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\silk_SigProc_FIX.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="silk_structs_FIX.h">
       <Filter>Header Files</Filter>
     </ClInclude>
   </ItemGroup>
diff --git a/silk/fixed/SKP_Silk_main_FIX.h b/silk/fixed/silk_main_FIX.h
similarity index 83%
rename from silk/fixed/SKP_Silk_main_FIX.h
rename to silk/fixed/silk_main_FIX.h
index b65c78ff..cc3be26a 100644
--- a/silk/fixed/SKP_Silk_main_FIX.h
+++ b/silk/fixed/silk_main_FIX.h
@@ -25,15 +25,15 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#ifndef SKP_SILK_MAIN_FIX_H
-#define SKP_SILK_MAIN_FIX_H
+#ifndef SILK_MAIN_FIX_H
+#define SILK_MAIN_FIX_H
 
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_structs_FIX.h"
-#include "SKP_Silk_control.h"
-#include "SKP_Silk_main.h"
-#include "SKP_Silk_PLC.h"
-#include "SKP_debug.h"
+#include "silk_SigProc_FIX.h"
+#include "silk_structs_FIX.h"
+#include "silk_control.h"
+#include "silk_main.h"
+#include "silk_PLC.h"
+#include "silk_debug.h"
 #include "entenc.h"
 
 #ifndef FORCE_CPP_BUILD
@@ -43,33 +43,42 @@ extern "C"
 #endif
 #endif
 
+#define silk_encoder_state_Fxx      silk_encoder_state_FIX
+#define silk_encode_frame_Fxx       silk_encode_frame_FIX
+
 /*********************/
 /* Encoder Functions */
 /*********************/
 
+/* High-pass filter with cutoff frequency adaptation based on pitch lag statistics */
+void silk_HP_variable_cutoff(
+    silk_encoder_state_Fxx          state_Fxx[],    /* I/O  Encoder states                              */
+    const SKP_int                   nChannels       /* I    Number of channels                          */
+);
+
 /* Encoder main function */
-SKP_int SKP_Silk_encode_frame_FIX( 
-    SKP_Silk_encoder_state_FIX      *psEnc,             /* I/O  Pointer to Silk FIX encoder state       */
+SKP_int silk_encode_frame_FIX( 
+    silk_encoder_state_FIX          *psEnc,             /* I/O  Pointer to Silk FIX encoder state       */
     SKP_int32                       *pnBytesOut,        /*   O  Pointer to number of payload bytes;     */
     ec_enc                          *psRangeEnc         /* I/O  compressor data structure               */
 );
 
 /* Low Bitrate Redundancy (LBRR) encoding. Reuse all parameters but encode with lower bitrate           */
-void SKP_Silk_LBRR_encode_FIX(
-    SKP_Silk_encoder_state_FIX      *psEnc,             /* I/O  Pointer to Silk FIX encoder state           */
-    SKP_Silk_encoder_control_FIX    *psEncCtrl,         /* I/O  Pointer to Silk FIX encoder control struct  */
+void silk_LBRR_encode_FIX(
+    silk_encoder_state_FIX          *psEnc,             /* I/O  Pointer to Silk FIX encoder state           */
+    silk_encoder_control_FIX        *psEncCtrl,         /* I/O  Pointer to Silk FIX encoder control struct  */
     const SKP_int16                 xfw[]               /* I    Input signal                                */
 );
 
 /* Initializes the Silk encoder state */
-SKP_int SKP_Silk_init_encoder(
-    SKP_Silk_encoder_state_FIX      *psEnc              /* I/O  Pointer to Silk FIX encoder state           */
+SKP_int silk_init_encoder(
+    silk_encoder_state_FIX          *psEnc              /* I/O  Pointer to Silk FIX encoder state           */
 );
 
 /* Control the Silk encoder */
-SKP_int SKP_Silk_control_encoder( 
-    SKP_Silk_encoder_state_FIX      *psEnc,             /* I/O  Pointer to Silk encoder state           */
-    SKP_SILK_SDK_EncControlStruct   *encControl,        /* I:   Control structure                       */
+SKP_int silk_control_encoder( 
+    silk_encoder_state_FIX          *psEnc,             /* I/O  Pointer to Silk encoder state           */
+    silk_EncControlStruct           *encControl,        /* I:   Control structure                       */
     const SKP_int32                 TargetRate_bps,     /* I    Target max bitrate (bps)                */
     const SKP_int                   allow_bw_switch,    /* I    Flag to allow switching audio bandwidth */
     const SKP_int                   channelNb           /* I    Channel number                          */
@@ -78,9 +87,9 @@ SKP_int SKP_Silk_control_encoder(
 /****************/
 /* Prefiltering */
 /****************/
-void SKP_Silk_prefilter_FIX(
-    SKP_Silk_encoder_state_FIX          *psEnc,         /* I/O  Encoder state                               */
-    const SKP_Silk_encoder_control_FIX  *psEncCtrl,     /* I    Encoder control                             */
+void silk_prefilter_FIX(
+    silk_encoder_state_FIX              *psEnc,         /* I/O  Encoder state                               */
+    const silk_encoder_control_FIX      *psEncCtrl,     /* I    Encoder control                             */
     SKP_int16                           xw[],           /* O    Weighted signal                             */
     const SKP_int16                     x[]             /* I    Speech signal                               */
 );
@@ -89,15 +98,15 @@ void SKP_Silk_prefilter_FIX(
 /* Noise shaping analysis */
 /**************************/
 /* Compute noise shaping coefficients and initial gain values */
-void SKP_Silk_noise_shape_analysis_FIX(
-    SKP_Silk_encoder_state_FIX      *psEnc,         /* I/O  Encoder state FIX                           */
-    SKP_Silk_encoder_control_FIX    *psEncCtrl,     /* I/O  Encoder control FIX                         */
+void silk_noise_shape_analysis_FIX(
+    silk_encoder_state_FIX          *psEnc,         /* I/O  Encoder state FIX                           */
+    silk_encoder_control_FIX        *psEncCtrl,     /* I/O  Encoder control FIX                         */
     const SKP_int16                 *pitch_res,     /* I    LPC residual from pitch analysis            */
     const SKP_int16                 *x              /* I    Input signal [ frame_length + la_shape ]    */
 );
 
 /* Autocorrelations for a warped frequency axis */
-void SKP_Silk_warped_autocorrelation_FIX(
+void silk_warped_autocorrelation_FIX(
           SKP_int32                 *corr,              /* O    Result [order + 1]                      */
           SKP_int                   *scale,             /* O    Scaling of the correlation vector       */
     const SKP_int16                 *input,             /* I    Input data to correlate                 */
@@ -107,32 +116,32 @@ void SKP_Silk_warped_autocorrelation_FIX(
 );
 
 /* Calculation of LTP state scaling */
-void SKP_Silk_LTP_scale_ctrl_FIX(
-    SKP_Silk_encoder_state_FIX      *psEnc,         /* I/O  encoder state                               */
-    SKP_Silk_encoder_control_FIX    *psEncCtrl      /* I/O  encoder control                             */
+void silk_LTP_scale_ctrl_FIX(
+    silk_encoder_state_FIX          *psEnc,         /* I/O  encoder state                               */
+    silk_encoder_control_FIX        *psEncCtrl      /* I/O  encoder control                             */
 );
 
 /**********************************************/
 /* Prediction Analysis                        */
 /**********************************************/
 /* Find pitch lags */
-void SKP_Silk_find_pitch_lags_FIX(
-    SKP_Silk_encoder_state_FIX      *psEnc,         /* I/O  encoder state                               */
-    SKP_Silk_encoder_control_FIX    *psEncCtrl,     /* I/O  encoder control                             */
+void silk_find_pitch_lags_FIX(
+    silk_encoder_state_FIX          *psEnc,         /* I/O  encoder state                               */
+    silk_encoder_control_FIX        *psEncCtrl,     /* I/O  encoder control                             */
     SKP_int16                       res[],          /* O    residual                                    */
     const SKP_int16                 x[]             /* I    Speech signal                               */
 );
 
 /* Find LPC and LTP coefficients */
-void SKP_Silk_find_pred_coefs_FIX(
-    SKP_Silk_encoder_state_FIX      *psEnc,         /* I/O  encoder state                               */
-    SKP_Silk_encoder_control_FIX    *psEncCtrl,     /* I/O  encoder control                             */
+void silk_find_pred_coefs_FIX(
+    silk_encoder_state_FIX          *psEnc,         /* I/O  encoder state                               */
+    silk_encoder_control_FIX        *psEncCtrl,     /* I/O  encoder control                             */
     const SKP_int16                 res_pitch[],    /* I    Residual from pitch analysis                */
     const SKP_int16                 x[]             /* I    Speech signal                               */
 );
 
 /* LPC analysis */
-void SKP_Silk_find_LPC_FIX(
+void silk_find_LPC_FIX(
     SKP_int16                       NLSF_Q15[],             /* O    NLSFs                                                           */
     SKP_int8                        *interpIndex,           /* O    NLSF interpolation index, only used for NLSF interpolation      */
     const SKP_int16                 prev_NLSFq_Q15[],       /* I    previous NLSFs, only used for NLSF interpolation                */
@@ -145,7 +154,7 @@ void SKP_Silk_find_LPC_FIX(
 );
 
 /* LTP analysis */
-void SKP_Silk_find_LTP_FIX(
+void silk_find_LTP_FIX(
     SKP_int16           b_Q14[ MAX_NB_SUBFR * LTP_ORDER ],              /* O    LTP coefs                                                   */
     SKP_int32           WLTP[ MAX_NB_SUBFR * LTP_ORDER * LTP_ORDER ],   /* O    Weight for LTP quantization                                 */
     SKP_int             *LTPredCodGain_Q7,                              /* O    LTP coding gain                                             */
@@ -158,7 +167,7 @@ void SKP_Silk_find_LTP_FIX(
     SKP_int             corr_rshifts[ MAX_NB_SUBFR ]                    /* O    right shifts applied to correlations                        */
 );
 
-void SKP_Silk_LTP_analysis_filter_FIX(
+void silk_LTP_analysis_filter_FIX(
     SKP_int16           *LTP_res,                               /* O:   LTP residual signal of length MAX_NB_SUBFR * ( pre_length + subfr_length )  */
     const SKP_int16     *x,                                     /* I:   Pointer to input signal with at least max( pitchL ) preceeding samples      */
     const SKP_int16     LTPCoef_Q14[ LTP_ORDER * MAX_NB_SUBFR ],/* I:   LTP_ORDER LTP coefficients for each MAX_NB_SUBFR subframe                   */
@@ -171,11 +180,11 @@ void SKP_Silk_LTP_analysis_filter_FIX(
 
 /* Calculates residual energies of input subframes where all subframes have LPC_order   */
 /* of preceeding samples                                                                */
-void SKP_Silk_residual_energy_FIX(
+void silk_residual_energy_FIX(
           SKP_int32 nrgs[ MAX_NB_SUBFR ],           /* O    Residual energy per subframe    */
           SKP_int   nrgsQ[ MAX_NB_SUBFR ],          /* O    Q value per subframe            */
     const SKP_int16 x[],                            /* I    Input signal                    */
-    const SKP_int16 a_Q12[ 2 ][ MAX_LPC_ORDER ],    /* I    AR coefs for each frame half    */
+          SKP_int16 a_Q12[ 2 ][ MAX_LPC_ORDER ],    /* I    AR coefs for each frame half    */
     const SKP_int32 gains[ MAX_NB_SUBFR ],          /* I    Quantization gains              */
     const SKP_int   subfr_length,                   /* I    Subframe length                 */
     const SKP_int   nb_subfr,                       /* I    Number of subframes             */
@@ -183,7 +192,7 @@ void SKP_Silk_residual_energy_FIX(
 );
 
 /* Residual energy: nrg = wxx - 2 * wXx * c + c' * wXX * c */
-SKP_int32 SKP_Silk_residual_energy16_covar_FIX(
+SKP_int32 silk_residual_energy16_covar_FIX(
     const SKP_int16                 *c,                 /* I    Prediction vector                           */
     const SKP_int32                 *wXX,               /* I    Correlation matrix                          */
     const SKP_int32                 *wXx,               /* I    Correlation vector                          */
@@ -193,16 +202,16 @@ SKP_int32 SKP_Silk_residual_energy16_covar_FIX(
 );
 
 /* Processing of gains */
-void SKP_Silk_process_gains_FIX(
-    SKP_Silk_encoder_state_FIX      *psEnc,         /* I/O  Encoder state                               */
-    SKP_Silk_encoder_control_FIX    *psEncCtrl      /* I/O  Encoder control                             */
+void silk_process_gains_FIX(
+    silk_encoder_state_FIX          *psEnc,         /* I/O  Encoder state                               */
+    silk_encoder_control_FIX        *psEncCtrl      /* I/O  Encoder control                             */
 );
 
 /******************/
 /* Linear Algebra */
 /******************/
 /* Calculates correlation matrix X'*X */
-void SKP_Silk_corrMatrix_FIX(
+void silk_corrMatrix_FIX(
     const SKP_int16                 *x,         /* I    x vector [L + order - 1] used to form data matrix X */
     const SKP_int                   L,          /* I    Length of vectors                                   */
     const SKP_int                   order,      /* I    Max lag for correlation                             */
@@ -212,7 +221,7 @@ void SKP_Silk_corrMatrix_FIX(
 );
 
 /* Calculates correlation vector X'*t */
-void SKP_Silk_corrVector_FIX(
+void silk_corrVector_FIX(
     const SKP_int16                 *x,         /* I    x vector [L + order - 1] used to form data matrix X */
     const SKP_int16                 *t,         /* I    Target vector [L]                                   */
     const SKP_int                   L,          /* I    Length of vectors                                   */
@@ -222,7 +231,7 @@ void SKP_Silk_corrVector_FIX(
 );
 
 /* Add noise to matrix diagonal */
-void SKP_Silk_regularize_correlations_FIX(
+void silk_regularize_correlations_FIX(
     SKP_int32                       *XX,                /* I/O  Correlation matrices                        */
     SKP_int32                       *xx,                /* I/O  Correlation values                          */
     SKP_int32                       noise,              /* I    Noise to add                                */
@@ -230,7 +239,7 @@ void SKP_Silk_regularize_correlations_FIX(
 );
 
 /* Solves Ax = b, assuming A is symmetric */
-void SKP_Silk_solve_LDL_FIX(
+void silk_solve_LDL_FIX(
     SKP_int32                       *A,                 /* I    Pointer to symetric square matrix A         */
     SKP_int                         M,                  /* I    Size of matrix                              */
     const SKP_int32                 *b,                 /* I    Pointer to b vector                         */
@@ -242,4 +251,4 @@ void SKP_Silk_solve_LDL_FIX(
 }
 #endif /* __cplusplus */
 #endif /* FORCE_CPP_BUILD */
-#endif /* SKP_SILK_MAIN_FIX_H */
+#endif /* SILK_MAIN_FIX_H */
diff --git a/silk/fixed/SKP_Silk_noise_shape_analysis_FIX.c b/silk/fixed/silk_noise_shape_analysis_FIX.c
similarity index 65%
rename from silk/fixed/SKP_Silk_noise_shape_analysis_FIX.c
rename to silk/fixed/silk_noise_shape_analysis_FIX.c
index b8d804c9..ad23d3bd 100644
--- a/silk/fixed/SKP_Silk_noise_shape_analysis_FIX.c
+++ b/silk/fixed/silk_noise_shape_analysis_FIX.c
@@ -25,8 +25,8 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FIX.h"
-#include "SKP_Silk_tuning_parameters.h"
+#include "silk_main_FIX.h"
+#include "silk_tuning_parameters.h"
 
 /* Compute gain to make warped filter coefficients have a zero mean log frequency response on a     */
 /* non-warped frequency scale. (So that it can be implemented with a minimum-phase monic filter.)   */
@@ -43,8 +43,8 @@ SKP_INLINE SKP_int32 warped_gain( // gain in Q16
     for( i = order - 2; i >= 0; i-- ) {
         gain_Q24 = SKP_SMLAWB( coefs_Q24[ i ], gain_Q24, lambda_Q16 );
     }
-    gain_Q24  = SKP_SMLAWB( SKP_FIX_CONST( 1.0, 24 ), gain_Q24, -lambda_Q16 );
-    return SKP_INVERSE32_varQ( gain_Q24, 40 );
+    gain_Q24  = SKP_SMLAWB( SILK_FIX_CONST( 1.0, 24 ), gain_Q24, -lambda_Q16 );
+    return silk_INVERSE32_varQ( gain_Q24, 40 );
 }
 
 /* Convert warped filter coefficients to monic pseudo-warped coefficients and limit maximum     */
@@ -67,11 +67,11 @@ SKP_INLINE void limit_warped_coefs(
         coefs_ana_Q24[ i - 1 ] = SKP_SMLAWB( coefs_ana_Q24[ i - 1 ], coefs_ana_Q24[ i ], lambda_Q16 );
     }
     lambda_Q16 = -lambda_Q16;
-    nom_Q16  = SKP_SMLAWB( SKP_FIX_CONST( 1.0, 16 ), -lambda_Q16,        lambda_Q16 );
-    den_Q24  = SKP_SMLAWB( SKP_FIX_CONST( 1.0, 24 ), coefs_syn_Q24[ 0 ], lambda_Q16 );
-    gain_syn_Q16 = SKP_DIV32_varQ( nom_Q16, den_Q24, 24 );
-    den_Q24  = SKP_SMLAWB( SKP_FIX_CONST( 1.0, 24 ), coefs_ana_Q24[ 0 ], lambda_Q16 );
-    gain_ana_Q16 = SKP_DIV32_varQ( nom_Q16, den_Q24, 24 );
+    nom_Q16  = SKP_SMLAWB( SILK_FIX_CONST( 1.0, 16 ), -lambda_Q16,        lambda_Q16 );
+    den_Q24  = SKP_SMLAWB( SILK_FIX_CONST( 1.0, 24 ), coefs_syn_Q24[ 0 ], lambda_Q16 );
+    gain_syn_Q16 = silk_DIV32_varQ( nom_Q16, den_Q24, 24 );
+    den_Q24  = SKP_SMLAWB( SILK_FIX_CONST( 1.0, 24 ), coefs_ana_Q24[ 0 ], lambda_Q16 );
+    gain_ana_Q16 = silk_DIV32_varQ( nom_Q16, den_Q24, 24 );
     for( i = 0; i < order; i++ ) {
         coefs_syn_Q24[ i ] = SKP_SMULWW( gain_syn_Q16, coefs_syn_Q24[ i ] );
         coefs_ana_Q24[ i ] = SKP_SMULWW( gain_ana_Q16, coefs_ana_Q24[ i ] );
@@ -97,19 +97,19 @@ SKP_INLINE void limit_warped_coefs(
             coefs_syn_Q24[ i - 1 ] = SKP_SMLAWB( coefs_syn_Q24[ i - 1 ], coefs_syn_Q24[ i ], lambda_Q16 );
             coefs_ana_Q24[ i - 1 ] = SKP_SMLAWB( coefs_ana_Q24[ i - 1 ], coefs_ana_Q24[ i ], lambda_Q16 );
         }
-        gain_syn_Q16 = SKP_INVERSE32_varQ( gain_syn_Q16, 32 );
-        gain_ana_Q16 = SKP_INVERSE32_varQ( gain_ana_Q16, 32 );
+        gain_syn_Q16 = silk_INVERSE32_varQ( gain_syn_Q16, 32 );
+        gain_ana_Q16 = silk_INVERSE32_varQ( gain_ana_Q16, 32 );
         for( i = 0; i < order; i++ ) {
             coefs_syn_Q24[ i ] = SKP_SMULWW( gain_syn_Q16, coefs_syn_Q24[ i ] );
             coefs_ana_Q24[ i ] = SKP_SMULWW( gain_ana_Q16, coefs_ana_Q24[ i ] );
         }
 
         /* Apply bandwidth expansion */
-        chirp_Q16 = SKP_FIX_CONST( 0.99, 16 ) - SKP_DIV32_varQ(
-            SKP_SMULWB( maxabs_Q24 - limit_Q24, SKP_SMLABB( SKP_FIX_CONST( 0.8, 10 ), SKP_FIX_CONST( 0.1, 10 ), iter ) ), 
+        chirp_Q16 = SILK_FIX_CONST( 0.99, 16 ) - silk_DIV32_varQ(
+            SKP_SMULWB( maxabs_Q24 - limit_Q24, SKP_SMLABB( SILK_FIX_CONST( 0.8, 10 ), SILK_FIX_CONST( 0.1, 10 ), iter ) ), 
             SKP_MUL( maxabs_Q24, ind + 1 ), 22 );
-        SKP_Silk_bwexpander_32( coefs_syn_Q24, order, chirp_Q16 );
-        SKP_Silk_bwexpander_32( coefs_ana_Q24, order, chirp_Q16 );
+        silk_bwexpander_32( coefs_syn_Q24, order, chirp_Q16 );
+        silk_bwexpander_32( coefs_ana_Q24, order, chirp_Q16 );
 
         /* Convert to monic warped coefficients */
         lambda_Q16 = -lambda_Q16;
@@ -118,11 +118,11 @@ SKP_INLINE void limit_warped_coefs(
             coefs_ana_Q24[ i - 1 ] = SKP_SMLAWB( coefs_ana_Q24[ i - 1 ], coefs_ana_Q24[ i ], lambda_Q16 );
         }
         lambda_Q16 = -lambda_Q16;
-        nom_Q16  = SKP_SMLAWB( SKP_FIX_CONST( 1.0, 16 ), -lambda_Q16,        lambda_Q16 );
-        den_Q24  = SKP_SMLAWB( SKP_FIX_CONST( 1.0, 24 ), coefs_syn_Q24[ 0 ], lambda_Q16 );
-        gain_syn_Q16 = SKP_DIV32_varQ( nom_Q16, den_Q24, 24 );
-        den_Q24  = SKP_SMLAWB( SKP_FIX_CONST( 1.0, 24 ), coefs_ana_Q24[ 0 ], lambda_Q16 );
-        gain_ana_Q16 = SKP_DIV32_varQ( nom_Q16, den_Q24, 24 );
+        nom_Q16  = SKP_SMLAWB( SILK_FIX_CONST( 1.0, 16 ), -lambda_Q16,        lambda_Q16 );
+        den_Q24  = SKP_SMLAWB( SILK_FIX_CONST( 1.0, 24 ), coefs_syn_Q24[ 0 ], lambda_Q16 );
+        gain_syn_Q16 = silk_DIV32_varQ( nom_Q16, den_Q24, 24 );
+        den_Q24  = SKP_SMLAWB( SILK_FIX_CONST( 1.0, 24 ), coefs_ana_Q24[ 0 ], lambda_Q16 );
+        gain_ana_Q16 = silk_DIV32_varQ( nom_Q16, den_Q24, 24 );
         for( i = 0; i < order; i++ ) {
             coefs_syn_Q24[ i ] = SKP_SMULWW( gain_syn_Q16, coefs_syn_Q24[ i ] );
             coefs_ana_Q24[ i ] = SKP_SMULWW( gain_ana_Q16, coefs_ana_Q24[ i ] );
@@ -134,14 +134,14 @@ SKP_INLINE void limit_warped_coefs(
 /**************************************************************/
 /* Compute noise shaping coefficients and initial gain values */
 /**************************************************************/
-void SKP_Silk_noise_shape_analysis_FIX(
-    SKP_Silk_encoder_state_FIX      *psEnc,         /* I/O  Encoder state FIX                           */
-    SKP_Silk_encoder_control_FIX    *psEncCtrl,     /* I/O  Encoder control FIX                         */
+void silk_noise_shape_analysis_FIX(
+    silk_encoder_state_FIX          *psEnc,         /* I/O  Encoder state FIX                           */
+    silk_encoder_control_FIX        *psEncCtrl,     /* I/O  Encoder control FIX                         */
     const SKP_int16                 *pitch_res,     /* I    LPC residual from pitch analysis            */
     const SKP_int16                 *x              /* I    Input signal [ frame_length + la_shape ]    */
 )
 {
-    SKP_Silk_shape_state_FIX *psShapeSt = &psEnc->sShape;
+    silk_shape_state_FIX *psShapeSt = &psEnc->sShape;
     SKP_int     k, i, nSamples, Qnrg, b_Q14, warping_Q16, scale = 0;
     SKP_int32   SNR_adj_dB_Q7, HarmBoost_Q16, HarmShapeGain_Q16, Tilt_Q16, tmp32;
     SKP_int32   nrg, pre_nrg_Q30, log_energy_Q7, log_energy_prev_Q7, energy_variation_Q7;
@@ -167,26 +167,26 @@ void SKP_Silk_noise_shape_analysis_FIX(
         + psEnc->sCmn.input_quality_bands_Q15[ 1 ], 2 );
 
     /* Coding quality level, between 0.0_Q0 and 1.0_Q0, but in Q14 */
-    psEncCtrl->coding_quality_Q14 = SKP_RSHIFT( SKP_Silk_sigm_Q15( SKP_RSHIFT_ROUND( SNR_adj_dB_Q7 - 
-        SKP_FIX_CONST( 18.0, 7 ), 4 ) ), 1 );
+    psEncCtrl->coding_quality_Q14 = SKP_RSHIFT( silk_sigm_Q15( SKP_RSHIFT_ROUND( SNR_adj_dB_Q7 - 
+        SILK_FIX_CONST( 18.0, 7 ), 4 ) ), 1 );
 
     /* Reduce coding SNR during low speech activity */
     if( psEnc->sCmn.useCBR == 0 ) {
-        b_Q8 = SKP_FIX_CONST( 1.0, 8 ) - psEnc->sCmn.speech_activity_Q8;
+        b_Q8 = SILK_FIX_CONST( 1.0, 8 ) - psEnc->sCmn.speech_activity_Q8;
         b_Q8 = SKP_SMULWB( SKP_LSHIFT( b_Q8, 8 ), b_Q8 );
         SNR_adj_dB_Q7 = SKP_SMLAWB( SNR_adj_dB_Q7,
-            SKP_SMULBB( SKP_FIX_CONST( -BG_SNR_DECR_dB, 7 ) >> ( 4 + 1 ), b_Q8 ),                                       // Q11
-            SKP_SMULWB( SKP_FIX_CONST( 1.0, 14 ) + psEncCtrl->input_quality_Q14, psEncCtrl->coding_quality_Q14 ) );     // Q12
+            SKP_SMULBB( SILK_FIX_CONST( -BG_SNR_DECR_dB, 7 ) >> ( 4 + 1 ), b_Q8 ),                                       // Q11
+            SKP_SMULWB( SILK_FIX_CONST( 1.0, 14 ) + psEncCtrl->input_quality_Q14, psEncCtrl->coding_quality_Q14 ) );     // Q12
     }
 
     if( psEnc->sCmn.indices.signalType == TYPE_VOICED ) {
         /* Reduce gains for periodic signals */
-        SNR_adj_dB_Q7 = SKP_SMLAWB( SNR_adj_dB_Q7, SKP_FIX_CONST( HARM_SNR_INCR_dB, 8 ), psEnc->LTPCorr_Q15 );
+        SNR_adj_dB_Q7 = SKP_SMLAWB( SNR_adj_dB_Q7, SILK_FIX_CONST( HARM_SNR_INCR_dB, 8 ), psEnc->LTPCorr_Q15 );
     } else { 
         /* For unvoiced signals and low-quality input, adjust the quality slower than SNR_dB setting */
         SNR_adj_dB_Q7 = SKP_SMLAWB( SNR_adj_dB_Q7, 
-            SKP_SMLAWB( SKP_FIX_CONST( 6.0, 9 ), -SKP_FIX_CONST( 0.4, 18 ), psEnc->sCmn.SNR_dB_Q7 ),
-            SKP_FIX_CONST( 1.0, 14 ) - psEncCtrl->input_quality_Q14 );
+            SKP_SMLAWB( SILK_FIX_CONST( 6.0, 9 ), -SILK_FIX_CONST( 0.4, 18 ), psEnc->sCmn.SNR_dB_Q7 ),
+            SILK_FIX_CONST( 1.0, 14 ) - psEncCtrl->input_quality_Q14 );
     }
 
     /*************************/
@@ -204,10 +204,10 @@ void SKP_Silk_noise_shape_analysis_FIX(
         log_energy_prev_Q7  = 0;
         pitch_res_ptr = pitch_res;
         for( k = 0; k < SKP_SMULBB( SUB_FRAME_LENGTH_MS, psEnc->sCmn.nb_subfr ) / 2; k++ ) {
-            SKP_Silk_sum_sqr_shift( &nrg, &scale, pitch_res_ptr, nSamples );
+            silk_sum_sqr_shift( &nrg, &scale, pitch_res_ptr, nSamples );
             nrg += SKP_RSHIFT( nSamples, scale );           // Q(-scale)
             
-            log_energy_Q7 = SKP_Silk_lin2log( nrg );
+            log_energy_Q7 = silk_lin2log( nrg );
             if( k > 0 ) {
                 energy_variation_Q7 += SKP_abs( log_energy_Q7 - log_energy_prev_Q7 );
             }
@@ -215,29 +215,29 @@ void SKP_Silk_noise_shape_analysis_FIX(
             pitch_res_ptr += nSamples;
         }
 
-        psEncCtrl->sparseness_Q8 = SKP_RSHIFT( SKP_Silk_sigm_Q15( SKP_SMULWB( energy_variation_Q7 - 
-            SKP_FIX_CONST( 5.0, 7 ), SKP_FIX_CONST( 0.1, 16 ) ) ), 7 );
+        psEncCtrl->sparseness_Q8 = SKP_RSHIFT( silk_sigm_Q15( SKP_SMULWB( energy_variation_Q7 - 
+            SILK_FIX_CONST( 5.0, 7 ), SILK_FIX_CONST( 0.1, 16 ) ) ), 7 );
 
         /* Set quantization offset depending on sparseness measure */
-        if( psEncCtrl->sparseness_Q8 > SKP_FIX_CONST( SPARSENESS_THRESHOLD_QNT_OFFSET, 8 ) ) {
+        if( psEncCtrl->sparseness_Q8 > SILK_FIX_CONST( SPARSENESS_THRESHOLD_QNT_OFFSET, 8 ) ) {
             psEnc->sCmn.indices.quantOffsetType = 0;
         } else {
             psEnc->sCmn.indices.quantOffsetType = 1;
         }
         
         /* Increase coding SNR for sparse signals */
-        SNR_adj_dB_Q7 = SKP_SMLAWB( SNR_adj_dB_Q7, SKP_FIX_CONST( SPARSE_SNR_INCR_dB, 15 ), psEncCtrl->sparseness_Q8 - SKP_FIX_CONST( 0.5, 8 ) );
+        SNR_adj_dB_Q7 = SKP_SMLAWB( SNR_adj_dB_Q7, SILK_FIX_CONST( SPARSE_SNR_INCR_dB, 15 ), psEncCtrl->sparseness_Q8 - SILK_FIX_CONST( 0.5, 8 ) );
     }
 
     /*******************************/
     /* Control bandwidth expansion */
     /*******************************/
     /* More BWE for signals with high prediction gain */
-    strength_Q16 = SKP_SMULWB( psEncCtrl->predGain_Q16, SKP_FIX_CONST( FIND_PITCH_WHITE_NOISE_FRACTION, 16 ) );
-    BWExp1_Q16 = BWExp2_Q16 = SKP_DIV32_varQ( SKP_FIX_CONST( BANDWIDTH_EXPANSION, 16 ), 
-        SKP_SMLAWW( SKP_FIX_CONST( 1.0, 16 ), strength_Q16, strength_Q16 ), 16 );
-    delta_Q16  = SKP_SMULWB( SKP_FIX_CONST( 1.0, 16 ) - SKP_SMULBB( 3, psEncCtrl->coding_quality_Q14 ), 
-        SKP_FIX_CONST( LOW_RATE_BANDWIDTH_EXPANSION_DELTA, 16 ) );
+    strength_Q16 = SKP_SMULWB( psEncCtrl->predGain_Q16, SILK_FIX_CONST( FIND_PITCH_WHITE_NOISE_FRACTION, 16 ) );
+    BWExp1_Q16 = BWExp2_Q16 = silk_DIV32_varQ( SILK_FIX_CONST( BANDWIDTH_EXPANSION, 16 ), 
+        SKP_SMLAWW( SILK_FIX_CONST( 1.0, 16 ), strength_Q16, strength_Q16 ), 16 );
+    delta_Q16  = SKP_SMULWB( SILK_FIX_CONST( 1.0, 16 ) - SKP_SMULBB( 3, psEncCtrl->coding_quality_Q14 ), 
+        SILK_FIX_CONST( LOW_RATE_BANDWIDTH_EXPANSION_DELTA, 16 ) );
     BWExp1_Q16 = SKP_SUB32( BWExp1_Q16, delta_Q16 );
     BWExp2_Q16 = SKP_ADD32( BWExp2_Q16, delta_Q16 );
     /* BWExp1 will be applied after BWExp2, so make it relative */
@@ -245,7 +245,7 @@ void SKP_Silk_noise_shape_analysis_FIX(
 
     if( psEnc->sCmn.warping_Q16 > 0 ) {
         /* Slightly more warping in analysis will move quantization noise up in frequency, where it's better masked */
-        warping_Q16 = SKP_SMLAWB( psEnc->sCmn.warping_Q16, psEncCtrl->coding_quality_Q14, SKP_FIX_CONST( 0.01, 18 ) );
+        warping_Q16 = SKP_SMLAWB( psEnc->sCmn.warping_Q16, psEncCtrl->coding_quality_Q14, SILK_FIX_CONST( 0.01, 18 ) );
     } else {
         warping_Q16 = 0;
     }
@@ -259,33 +259,33 @@ void SKP_Silk_noise_shape_analysis_FIX(
         flat_part = psEnc->sCmn.fs_kHz * 3;
         slope_part = SKP_RSHIFT( psEnc->sCmn.shapeWinLength - flat_part, 1 );
 
-        SKP_Silk_apply_sine_window( x_windowed, x_ptr, 1, slope_part );
+        silk_apply_sine_window( x_windowed, x_ptr, 1, slope_part );
         shift = slope_part;
         SKP_memcpy( x_windowed + shift, x_ptr + shift, flat_part * sizeof(SKP_int16) );
         shift += flat_part;
-        SKP_Silk_apply_sine_window( x_windowed + shift, x_ptr + shift, 2, slope_part );
+        silk_apply_sine_window( x_windowed + shift, x_ptr + shift, 2, slope_part );
 
         /* Update pointer: next LPC analysis block */
         x_ptr += psEnc->sCmn.subfr_length;
 
         if( psEnc->sCmn.warping_Q16 > 0 ) {
             /* Calculate warped auto correlation */
-            SKP_Silk_warped_autocorrelation_FIX( auto_corr, &scale, x_windowed, warping_Q16, psEnc->sCmn.shapeWinLength, psEnc->sCmn.shapingLPCOrder ); 
+            silk_warped_autocorrelation_FIX( auto_corr, &scale, x_windowed, warping_Q16, psEnc->sCmn.shapeWinLength, psEnc->sCmn.shapingLPCOrder ); 
         } else {
             /* Calculate regular auto correlation */
-            SKP_Silk_autocorr( auto_corr, &scale, x_windowed, psEnc->sCmn.shapeWinLength, psEnc->sCmn.shapingLPCOrder + 1 );
+            silk_autocorr( auto_corr, &scale, x_windowed, psEnc->sCmn.shapeWinLength, psEnc->sCmn.shapingLPCOrder + 1 );
         }
 
         /* Add white noise, as a fraction of energy */
         auto_corr[0] = SKP_ADD32( auto_corr[0], SKP_max_32( SKP_SMULWB( SKP_RSHIFT( auto_corr[ 0 ], 4 ), 
-            SKP_FIX_CONST( SHAPE_WHITE_NOISE_FRACTION, 20 ) ), 1 ) ); 
+            SILK_FIX_CONST( SHAPE_WHITE_NOISE_FRACTION, 20 ) ), 1 ) ); 
 
         /* Calculate the reflection coefficients using schur */
-        nrg = SKP_Silk_schur64( refl_coef_Q16, auto_corr, psEnc->sCmn.shapingLPCOrder );
+        nrg = silk_schur64( refl_coef_Q16, auto_corr, psEnc->sCmn.shapingLPCOrder );
         SKP_assert( nrg >= 0 );
 
         /* Convert reflection coefficients to prediction coefficients */
-        SKP_Silk_k2a_Q16( AR2_Q24, refl_coef_Q16, psEnc->sCmn.shapingLPCOrder );
+        silk_k2a_Q16( AR2_Q24, refl_coef_Q16, psEnc->sCmn.shapingLPCOrder );
 
         Qnrg = -scale;          // range: -12...30
         SKP_assert( Qnrg >= -12 );
@@ -297,7 +297,7 @@ void SKP_Silk_noise_shape_analysis_FIX(
             nrg >>= 1;
         }
 
-        tmp32 = SKP_Silk_SQRT_APPROX( nrg );
+        tmp32 = silk_SQRT_APPROX( nrg );
         Qnrg >>= 1;             // range: -6...15
 
         sqrt_nrg[ k ] = tmp32;
@@ -312,25 +312,25 @@ void SKP_Silk_noise_shape_analysis_FIX(
         }
 
         /* Bandwidth expansion for synthesis filter shaping */
-        SKP_Silk_bwexpander_32( AR2_Q24, psEnc->sCmn.shapingLPCOrder, BWExp2_Q16 );
+        silk_bwexpander_32( AR2_Q24, psEnc->sCmn.shapingLPCOrder, BWExp2_Q16 );
 
         /* Compute noise shaping filter coefficients */
         SKP_memcpy( AR1_Q24, AR2_Q24, psEnc->sCmn.shapingLPCOrder * sizeof( SKP_int32 ) );
 
         /* Bandwidth expansion for analysis filter shaping */
-        SKP_assert( BWExp1_Q16 <= SKP_FIX_CONST( 1.0, 16 ) );
-        SKP_Silk_bwexpander_32( AR1_Q24, psEnc->sCmn.shapingLPCOrder, BWExp1_Q16 );
+        SKP_assert( BWExp1_Q16 <= SILK_FIX_CONST( 1.0, 16 ) );
+        silk_bwexpander_32( AR1_Q24, psEnc->sCmn.shapingLPCOrder, BWExp1_Q16 );
 
         /* Ratio of prediction gains, in energy domain */
-        SKP_Silk_LPC_inverse_pred_gain_Q24( &pre_nrg_Q30, AR2_Q24, psEnc->sCmn.shapingLPCOrder );
-        SKP_Silk_LPC_inverse_pred_gain_Q24( &nrg,         AR1_Q24, psEnc->sCmn.shapingLPCOrder );
+        silk_LPC_inverse_pred_gain_Q24( &pre_nrg_Q30, AR2_Q24, psEnc->sCmn.shapingLPCOrder );
+        silk_LPC_inverse_pred_gain_Q24( &nrg,         AR1_Q24, psEnc->sCmn.shapingLPCOrder );
 
         //psEncCtrl->GainsPre[ k ] = 1.0f - 0.7f * ( 1.0f - pre_nrg / nrg ) = 0.3f + 0.7f * pre_nrg / nrg;
-        pre_nrg_Q30 = SKP_LSHIFT32( SKP_SMULWB( pre_nrg_Q30, SKP_FIX_CONST( 0.7, 15 ) ), 1 );
-        psEncCtrl->GainsPre_Q14[ k ] = ( SKP_int ) SKP_FIX_CONST( 0.3, 14 ) + SKP_DIV32_varQ( pre_nrg_Q30, nrg, 14 );
+        pre_nrg_Q30 = SKP_LSHIFT32( SKP_SMULWB( pre_nrg_Q30, SILK_FIX_CONST( 0.7, 15 ) ), 1 );
+        psEncCtrl->GainsPre_Q14[ k ] = ( SKP_int ) SILK_FIX_CONST( 0.3, 14 ) + silk_DIV32_varQ( pre_nrg_Q30, nrg, 14 );
 
         /* Convert to monic warped prediction coefficients and limit absolute values */
-        limit_warped_coefs( AR2_Q24, AR1_Q24, warping_Q16, SKP_FIX_CONST( 3.999, 24 ), psEnc->sCmn.shapingLPCOrder );
+        limit_warped_coefs( AR2_Q24, AR1_Q24, warping_Q16, SILK_FIX_CONST( 3.999, 24 ), psEnc->sCmn.shapingLPCOrder );
 
         /* Convert from Q24 to Q13 and store in int16 */
         for( i = 0; i < psEnc->sCmn.shapingLPCOrder; i++ ) {
@@ -343,8 +343,8 @@ void SKP_Silk_noise_shape_analysis_FIX(
     /* Gain tweaking */
     /*****************/
     /* Increase gains during low speech activity and put lower limit on gains */
-    gain_mult_Q16 = SKP_Silk_log2lin( -SKP_SMLAWB( -SKP_FIX_CONST( 16.0, 7 ), SNR_adj_dB_Q7, SKP_FIX_CONST( 0.16, 16 ) ) );
-    gain_add_Q16  = SKP_Silk_log2lin(  SKP_SMLAWB(  SKP_FIX_CONST( 16.0, 7 ), SKP_FIX_CONST( MIN_QGAIN_DB, 7 ), SKP_FIX_CONST( 0.16, 16 ) ) );
+    gain_mult_Q16 = silk_log2lin( -SKP_SMLAWB( -SILK_FIX_CONST( 16.0, 7 ), SNR_adj_dB_Q7, SILK_FIX_CONST( 0.16, 16 ) ) );
+    gain_add_Q16  = silk_log2lin(  SKP_SMLAWB(  SILK_FIX_CONST( 16.0, 7 ), SILK_FIX_CONST( MIN_QGAIN_DB, 7 ), SILK_FIX_CONST( 0.16, 16 ) ) );
     SKP_assert( gain_mult_Q16 > 0 );
     for( k = 0; k < psEnc->sCmn.nb_subfr; k++ ) {
         psEncCtrl->Gains_Q16[ k ] = SKP_SMULWW( psEncCtrl->Gains_Q16[ k ], gain_mult_Q16 );
@@ -352,8 +352,8 @@ void SKP_Silk_noise_shape_analysis_FIX(
         psEncCtrl->Gains_Q16[ k ] = SKP_ADD_POS_SAT32( psEncCtrl->Gains_Q16[ k ], gain_add_Q16 );
     }
 
-    gain_mult_Q16 = SKP_FIX_CONST( 1.0, 16 ) + SKP_RSHIFT_ROUND( SKP_MLA( SKP_FIX_CONST( INPUT_TILT, 26 ), 
-        psEncCtrl->coding_quality_Q14, SKP_FIX_CONST( HIGH_RATE_INPUT_TILT, 12 ) ), 10 );
+    gain_mult_Q16 = SILK_FIX_CONST( 1.0, 16 ) + SKP_RSHIFT_ROUND( SKP_MLA( SILK_FIX_CONST( INPUT_TILT, 26 ), 
+        psEncCtrl->coding_quality_Q14, SILK_FIX_CONST( HIGH_RATE_INPUT_TILT, 12 ) ), 10 );
     for( k = 0; k < psEnc->sCmn.nb_subfr; k++ ) {
         psEncCtrl->GainsPre_Q14[ k ] = SKP_SMULWB( gain_mult_Q16, psEncCtrl->GainsPre_Q14[ k ] );
     }
@@ -362,55 +362,55 @@ void SKP_Silk_noise_shape_analysis_FIX(
     /* Control low-frequency shaping and noise tilt */
     /************************************************/
     /* Less low frequency shaping for noisy inputs */
-    strength_Q16 = SKP_MUL( SKP_FIX_CONST( LOW_FREQ_SHAPING, 4 ), SKP_SMLAWB( SKP_FIX_CONST( 1.0, 12 ),
-        SKP_FIX_CONST( LOW_QUALITY_LOW_FREQ_SHAPING_DECR, 13 ), psEnc->sCmn.input_quality_bands_Q15[ 0 ] - SKP_FIX_CONST( 1.0, 15 ) ) );
+    strength_Q16 = SKP_MUL( SILK_FIX_CONST( LOW_FREQ_SHAPING, 4 ), SKP_SMLAWB( SILK_FIX_CONST( 1.0, 12 ),
+        SILK_FIX_CONST( LOW_QUALITY_LOW_FREQ_SHAPING_DECR, 13 ), psEnc->sCmn.input_quality_bands_Q15[ 0 ] - SILK_FIX_CONST( 1.0, 15 ) ) );
     strength_Q16 = SKP_RSHIFT( SKP_MUL( strength_Q16, psEnc->sCmn.speech_activity_Q8 ), 8 );
     if( psEnc->sCmn.indices.signalType == TYPE_VOICED ) {
         /* Reduce low frequencies quantization noise for periodic signals, depending on pitch lag */
         /*f = 400; freqz([1, -0.98 + 2e-4 * f], [1, -0.97 + 7e-4 * f], 2^12, Fs); axis([0, 1000, -10, 1])*/
-        SKP_int fs_kHz_inv = SKP_DIV32_16( SKP_FIX_CONST( 0.2, 14 ), psEnc->sCmn.fs_kHz );
+        SKP_int fs_kHz_inv = SKP_DIV32_16( SILK_FIX_CONST( 0.2, 14 ), psEnc->sCmn.fs_kHz );
         for( k = 0; k < psEnc->sCmn.nb_subfr; k++ ) {
-            b_Q14 = fs_kHz_inv + SKP_DIV32_16( SKP_FIX_CONST( 3.0, 14 ), psEncCtrl->pitchL[ k ] ); 
+            b_Q14 = fs_kHz_inv + SKP_DIV32_16( SILK_FIX_CONST( 3.0, 14 ), psEncCtrl->pitchL[ k ] ); 
             /* Pack two coefficients in one int32 */
-            psEncCtrl->LF_shp_Q14[ k ]  = SKP_LSHIFT( SKP_FIX_CONST( 1.0, 14 ) - b_Q14 - SKP_SMULWB( strength_Q16, b_Q14 ), 16 );
-            psEncCtrl->LF_shp_Q14[ k ] |= (SKP_uint16)( b_Q14 - SKP_FIX_CONST( 1.0, 14 ) );
+            psEncCtrl->LF_shp_Q14[ k ]  = SKP_LSHIFT( SILK_FIX_CONST( 1.0, 14 ) - b_Q14 - SKP_SMULWB( strength_Q16, b_Q14 ), 16 );
+            psEncCtrl->LF_shp_Q14[ k ] |= (SKP_uint16)( b_Q14 - SILK_FIX_CONST( 1.0, 14 ) );
         }
-        SKP_assert( SKP_FIX_CONST( HARM_HP_NOISE_COEF, 24 ) < SKP_FIX_CONST( 0.5, 24 ) ); // Guarantees that second argument to SMULWB() is within range of an SKP_int16
-        Tilt_Q16 = - SKP_FIX_CONST( HP_NOISE_COEF, 16 ) - 
-            SKP_SMULWB( SKP_FIX_CONST( 1.0, 16 ) - SKP_FIX_CONST( HP_NOISE_COEF, 16 ), 
-                SKP_SMULWB( SKP_FIX_CONST( HARM_HP_NOISE_COEF, 24 ), psEnc->sCmn.speech_activity_Q8 ) );
+        SKP_assert( SILK_FIX_CONST( HARM_HP_NOISE_COEF, 24 ) < SILK_FIX_CONST( 0.5, 24 ) ); // Guarantees that second argument to SMULWB() is within range of an SKP_int16
+        Tilt_Q16 = - SILK_FIX_CONST( HP_NOISE_COEF, 16 ) - 
+            SKP_SMULWB( SILK_FIX_CONST( 1.0, 16 ) - SILK_FIX_CONST( HP_NOISE_COEF, 16 ), 
+                SKP_SMULWB( SILK_FIX_CONST( HARM_HP_NOISE_COEF, 24 ), psEnc->sCmn.speech_activity_Q8 ) );
     } else {
         b_Q14 = SKP_DIV32_16( 21299, psEnc->sCmn.fs_kHz ); // 1.3_Q0 = 21299_Q14
         /* Pack two coefficients in one int32 */
-        psEncCtrl->LF_shp_Q14[ 0 ]  = SKP_LSHIFT( SKP_FIX_CONST( 1.0, 14 ) - b_Q14 - 
-            SKP_SMULWB( strength_Q16, SKP_SMULWB( SKP_FIX_CONST( 0.6, 16 ), b_Q14 ) ), 16 );
-        psEncCtrl->LF_shp_Q14[ 0 ] |= (SKP_uint16)( b_Q14 - SKP_FIX_CONST( 1.0, 14 ) );
+        psEncCtrl->LF_shp_Q14[ 0 ]  = SKP_LSHIFT( SILK_FIX_CONST( 1.0, 14 ) - b_Q14 - 
+            SKP_SMULWB( strength_Q16, SKP_SMULWB( SILK_FIX_CONST( 0.6, 16 ), b_Q14 ) ), 16 );
+        psEncCtrl->LF_shp_Q14[ 0 ] |= (SKP_uint16)( b_Q14 - SILK_FIX_CONST( 1.0, 14 ) );
         for( k = 1; k < psEnc->sCmn.nb_subfr; k++ ) {
             psEncCtrl->LF_shp_Q14[ k ] = psEncCtrl->LF_shp_Q14[ 0 ];
         }
-        Tilt_Q16 = -SKP_FIX_CONST( HP_NOISE_COEF, 16 );
+        Tilt_Q16 = -SILK_FIX_CONST( HP_NOISE_COEF, 16 );
     }
 
     /****************************/
     /* HARMONIC SHAPING CONTROL */
     /****************************/
     /* Control boosting of harmonic frequencies */
-    HarmBoost_Q16 = SKP_SMULWB( SKP_SMULWB( SKP_FIX_CONST( 1.0, 17 ) - SKP_LSHIFT( psEncCtrl->coding_quality_Q14, 3 ), 
-        psEnc->LTPCorr_Q15 ), SKP_FIX_CONST( LOW_RATE_HARMONIC_BOOST, 16 ) );
+    HarmBoost_Q16 = SKP_SMULWB( SKP_SMULWB( SILK_FIX_CONST( 1.0, 17 ) - SKP_LSHIFT( psEncCtrl->coding_quality_Q14, 3 ), 
+        psEnc->LTPCorr_Q15 ), SILK_FIX_CONST( LOW_RATE_HARMONIC_BOOST, 16 ) );
 
     /* More harmonic boost for noisy input signals */
     HarmBoost_Q16 = SKP_SMLAWB( HarmBoost_Q16, 
-        SKP_FIX_CONST( 1.0, 16 ) - SKP_LSHIFT( psEncCtrl->input_quality_Q14, 2 ), SKP_FIX_CONST( LOW_INPUT_QUALITY_HARMONIC_BOOST, 16 ) );
+        SILK_FIX_CONST( 1.0, 16 ) - SKP_LSHIFT( psEncCtrl->input_quality_Q14, 2 ), SILK_FIX_CONST( LOW_INPUT_QUALITY_HARMONIC_BOOST, 16 ) );
 
     if( USE_HARM_SHAPING && psEnc->sCmn.indices.signalType == TYPE_VOICED ) {
         /* More harmonic noise shaping for high bitrates or noisy input */
-        HarmShapeGain_Q16 = SKP_SMLAWB( SKP_FIX_CONST( HARMONIC_SHAPING, 16 ), 
-                SKP_FIX_CONST( 1.0, 16 ) - SKP_SMULWB( SKP_FIX_CONST( 1.0, 18 ) - SKP_LSHIFT( psEncCtrl->coding_quality_Q14, 4 ),
-                psEncCtrl->input_quality_Q14 ), SKP_FIX_CONST( HIGH_RATE_OR_LOW_QUALITY_HARMONIC_SHAPING, 16 ) );
+        HarmShapeGain_Q16 = SKP_SMLAWB( SILK_FIX_CONST( HARMONIC_SHAPING, 16 ), 
+                SILK_FIX_CONST( 1.0, 16 ) - SKP_SMULWB( SILK_FIX_CONST( 1.0, 18 ) - SKP_LSHIFT( psEncCtrl->coding_quality_Q14, 4 ),
+                psEncCtrl->input_quality_Q14 ), SILK_FIX_CONST( HIGH_RATE_OR_LOW_QUALITY_HARMONIC_SHAPING, 16 ) );
 
         /* Less harmonic noise shaping for less periodic signals */
         HarmShapeGain_Q16 = SKP_SMULWB( SKP_LSHIFT( HarmShapeGain_Q16, 1 ), 
-            SKP_Silk_SQRT_APPROX( SKP_LSHIFT( psEnc->LTPCorr_Q15, 15 ) ) );
+            silk_SQRT_APPROX( SKP_LSHIFT( psEnc->LTPCorr_Q15, 15 ) ) );
     } else {
         HarmShapeGain_Q16 = 0;
     }
@@ -420,11 +420,11 @@ void SKP_Silk_noise_shape_analysis_FIX(
     /*************************/
     for( k = 0; k < MAX_NB_SUBFR; k++ ) {
         psShapeSt->HarmBoost_smth_Q16 =
-            SKP_SMLAWB( psShapeSt->HarmBoost_smth_Q16,     HarmBoost_Q16     - psShapeSt->HarmBoost_smth_Q16,     SKP_FIX_CONST( SUBFR_SMTH_COEF, 16 ) );
+            SKP_SMLAWB( psShapeSt->HarmBoost_smth_Q16,     HarmBoost_Q16     - psShapeSt->HarmBoost_smth_Q16,     SILK_FIX_CONST( SUBFR_SMTH_COEF, 16 ) );
         psShapeSt->HarmShapeGain_smth_Q16 =
-            SKP_SMLAWB( psShapeSt->HarmShapeGain_smth_Q16, HarmShapeGain_Q16 - psShapeSt->HarmShapeGain_smth_Q16, SKP_FIX_CONST( SUBFR_SMTH_COEF, 16 ) );
+            SKP_SMLAWB( psShapeSt->HarmShapeGain_smth_Q16, HarmShapeGain_Q16 - psShapeSt->HarmShapeGain_smth_Q16, SILK_FIX_CONST( SUBFR_SMTH_COEF, 16 ) );
         psShapeSt->Tilt_smth_Q16 =
-            SKP_SMLAWB( psShapeSt->Tilt_smth_Q16,          Tilt_Q16          - psShapeSt->Tilt_smth_Q16,          SKP_FIX_CONST( SUBFR_SMTH_COEF, 16 ) );
+            SKP_SMLAWB( psShapeSt->Tilt_smth_Q16,          Tilt_Q16          - psShapeSt->Tilt_smth_Q16,          SILK_FIX_CONST( SUBFR_SMTH_COEF, 16 ) );
 
         psEncCtrl->HarmBoost_Q14[ k ]     = ( SKP_int )SKP_RSHIFT_ROUND( psShapeSt->HarmBoost_smth_Q16,     2 );
         psEncCtrl->HarmShapeGain_Q14[ k ] = ( SKP_int )SKP_RSHIFT_ROUND( psShapeSt->HarmShapeGain_smth_Q16, 2 );
diff --git a/silk/fixed/SKP_Silk_prefilter_FIX.c b/silk/fixed/silk_prefilter_FIX.c
similarity index 88%
rename from silk/fixed/SKP_Silk_prefilter_FIX.c
rename to silk/fixed/silk_prefilter_FIX.c
index 58be293f..44e60346 100644
--- a/silk/fixed/SKP_Silk_prefilter_FIX.c
+++ b/silk/fixed/silk_prefilter_FIX.c
@@ -25,12 +25,12 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FIX.h"
-#include "SKP_Silk_tuning_parameters.h"
+#include "silk_main_FIX.h"
+#include "silk_tuning_parameters.h"
 
-/* SKP_Silk_prefilter. Prefilter for finding Quantizer input signal */
-SKP_INLINE void SKP_Silk_prefilt_FIX(
-    SKP_Silk_prefilter_state_FIX *P,                    /* I/O state                          */
+/* silk_prefilter. Prefilter for finding Quantizer input signal */
+SKP_INLINE void silk_prefilt_FIX(
+    silk_prefilter_state_FIX *P,                    /* I/O state                          */
     SKP_int32   st_res_Q12[],                           /* I short term residual signal       */
     SKP_int16   xw[],                                   /* O prefiltered signal               */
     SKP_int32   HarmShapeFIRPacked_Q12,                 /* I Harmonic shaping coeficients     */
@@ -40,7 +40,7 @@ SKP_INLINE void SKP_Silk_prefilt_FIX(
     SKP_int     length                                  /* I Length of signals                */
 );
 
-void SKP_Silk_warped_LPC_analysis_filter_FIX(
+void silk_warped_LPC_analysis_filter_FIX(
           SKP_int32                 state[],            /* I/O  State [order + 1]                       */
           SKP_int16                 res[],              /* O    Residual signal [length]                */
     const SKP_int16                 coef_Q13[],         /* I    Coefficients [order]                    */
@@ -81,14 +81,14 @@ void SKP_Silk_warped_LPC_analysis_filter_FIX(
     }
 }
 
-void SKP_Silk_prefilter_FIX(
-    SKP_Silk_encoder_state_FIX          *psEnc,         /* I/O  Encoder state FIX                           */
-    const SKP_Silk_encoder_control_FIX  *psEncCtrl,     /* I    Encoder control FIX                         */
+void silk_prefilter_FIX(
+    silk_encoder_state_FIX              *psEnc,         /* I/O  Encoder state FIX                           */
+    const silk_encoder_control_FIX      *psEncCtrl,     /* I    Encoder control FIX                         */
     SKP_int16                           xw[],           /* O    Weighted signal                             */
     const SKP_int16                     x[]             /* I    Speech signal                               */
 )
 {
-    SKP_Silk_prefilter_state_FIX *P = &psEnc->sPrefilt;
+    silk_prefilter_state_FIX *P = &psEnc->sPrefilt;
     SKP_int   j, k, lag;
     SKP_int32 tmp_32;
     const SKP_int16 *AR1_shp_Q13;
@@ -120,13 +120,13 @@ void SKP_Silk_prefilter_FIX(
         AR1_shp_Q13 = &psEncCtrl->AR1_Q13[   k * MAX_SHAPE_LPC_ORDER ];
 
         /* Short term FIR filtering*/
-        SKP_Silk_warped_LPC_analysis_filter_FIX( P->sAR_shp, st_res, AR1_shp_Q13, px, 
+        silk_warped_LPC_analysis_filter_FIX( P->sAR_shp, st_res, AR1_shp_Q13, px, 
             psEnc->sCmn.warping_Q16, psEnc->sCmn.subfr_length, psEnc->sCmn.shapingLPCOrder );
 
         /* reduce (mainly) low frequencies during harmonic emphasis */
         B_Q12[ 0 ] = SKP_RSHIFT_ROUND( psEncCtrl->GainsPre_Q14[ k ], 2 );
-        tmp_32 = SKP_SMLABB( SKP_FIX_CONST( INPUT_TILT, 26 ), psEncCtrl->HarmBoost_Q14[ k ], HarmShapeGain_Q12 );   /* Q26 */
-        tmp_32 = SKP_SMLABB( tmp_32, psEncCtrl->coding_quality_Q14, SKP_FIX_CONST( HIGH_RATE_INPUT_TILT, 12 ) );    /* Q26 */
+        tmp_32 = SKP_SMLABB( SILK_FIX_CONST( INPUT_TILT, 26 ), psEncCtrl->HarmBoost_Q14[ k ], HarmShapeGain_Q12 );   /* Q26 */
+        tmp_32 = SKP_SMLABB( tmp_32, psEncCtrl->coding_quality_Q14, SILK_FIX_CONST( HIGH_RATE_INPUT_TILT, 12 ) );    /* Q26 */
         tmp_32 = SKP_SMULWB( tmp_32, -psEncCtrl->GainsPre_Q14[ k ] );                                               /* Q24 */
         tmp_32 = SKP_RSHIFT_ROUND( tmp_32, 12 );                                                                    /* Q12 */
         B_Q12[ 1 ]= SKP_SAT16( tmp_32 );
@@ -137,7 +137,7 @@ void SKP_Silk_prefilter_FIX(
         }
         P->sHarmHP = st_res[ psEnc->sCmn.subfr_length - 1 ];
 
-        SKP_Silk_prefilt_FIX( P, x_filt_Q12, pxw, HarmShapeFIRPacked_Q12, Tilt_Q14, 
+        silk_prefilt_FIX( P, x_filt_Q12, pxw, HarmShapeFIRPacked_Q12, Tilt_Q14, 
             LF_shp_Q14, lag, psEnc->sCmn.subfr_length );
 
         px  += psEnc->sCmn.subfr_length;
@@ -147,9 +147,9 @@ void SKP_Silk_prefilter_FIX(
     P->lagPrev = psEncCtrl->pitchL[ MAX_NB_SUBFR - 1 ];
 }
 
-/* SKP_Silk_prefilter. Prefilter for finding Quantizer input signal                           */
-SKP_INLINE void SKP_Silk_prefilt_FIX(
-    SKP_Silk_prefilter_state_FIX *P,                    /* I/O state                          */
+/* silk_prefilter. Prefilter for finding Quantizer input signal                           */
+SKP_INLINE void silk_prefilt_FIX(
+    silk_prefilter_state_FIX *P,                    /* I/O state                          */
     SKP_int32   st_res_Q12[],                           /* I short term residual signal       */
     SKP_int16   xw[],                                   /* O prefiltered signal               */
     SKP_int32   HarmShapeFIRPacked_Q12,                 /* I Harmonic shaping coeficients     */
diff --git a/silk/fixed/SKP_Silk_process_gains_FIX.c b/silk/fixed/silk_process_gains_FIX.c
similarity index 67%
rename from silk/fixed/SKP_Silk_process_gains_FIX.c
rename to silk/fixed/silk_process_gains_FIX.c
index c11502b0..b884129c 100644
--- a/silk/fixed/SKP_Silk_process_gains_FIX.c
+++ b/silk/fixed/silk_process_gains_FIX.c
@@ -25,23 +25,23 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FIX.h"
-#include "SKP_Silk_tuning_parameters.h"
+#include "silk_main_FIX.h"
+#include "silk_tuning_parameters.h"
 
 /* Processing of gains */
-void SKP_Silk_process_gains_FIX(
-    SKP_Silk_encoder_state_FIX      *psEnc,         /* I/O  Encoder state_FIX                           */
-    SKP_Silk_encoder_control_FIX    *psEncCtrl      /* I/O  Encoder control_FIX                         */
+void silk_process_gains_FIX(
+    silk_encoder_state_FIX      *psEnc,         /* I/O  Encoder state_FIX                           */
+    silk_encoder_control_FIX    *psEncCtrl      /* I/O  Encoder control_FIX                         */
 )
 {
-    SKP_Silk_shape_state_FIX    *psShapeSt = &psEnc->sShape;
+    silk_shape_state_FIX    *psShapeSt = &psEnc->sShape;
     SKP_int     k;
     SKP_int32   s_Q16, InvMaxSqrVal_Q16, gain, gain_squared, ResNrg, ResNrgPart, quant_offset_Q10;
 
     /* Gain reduction when LTP coding gain is high */
     if( psEnc->sCmn.indices.signalType == TYPE_VOICED ) {
         /*s = -0.5f * SKP_sigmoid( 0.25f * ( psEncCtrl->LTPredCodGain - 12.0f ) ); */
-        s_Q16 = -SKP_Silk_sigm_Q15( SKP_RSHIFT_ROUND( psEncCtrl->LTPredCodGain_Q7 - SKP_FIX_CONST( 12.0, 7 ), 4 ) );
+        s_Q16 = -silk_sigm_Q15( SKP_RSHIFT_ROUND( psEncCtrl->LTPredCodGain_Q7 - SILK_FIX_CONST( 12.0, 7 ), 4 ) );
         for( k = 0; k < psEnc->sCmn.nb_subfr; k++ ) {
             psEncCtrl->Gains_Q16[ k ] = SKP_SMLAWB( psEncCtrl->Gains_Q16[ k ], psEncCtrl->Gains_Q16[ k ], s_Q16 );
         }
@@ -49,8 +49,8 @@ void SKP_Silk_process_gains_FIX(
 
     /* Limit the quantized signal */
     /* InvMaxSqrVal = pow( 2.0f, 0.33f * ( 21.0f - SNR_dB ) ) / subfr_length; */
-    InvMaxSqrVal_Q16 = SKP_DIV32_16( SKP_Silk_log2lin( 
-        SKP_SMULWB( SKP_FIX_CONST( 21 + 16 / 0.33, 7 ) - psEnc->sCmn.SNR_dB_Q7, SKP_FIX_CONST( 0.33, 16 ) ) ), psEnc->sCmn.subfr_length );
+    InvMaxSqrVal_Q16 = SKP_DIV32_16( silk_log2lin( 
+        SKP_SMULWB( SILK_FIX_CONST( 21 + 16 / 0.33, 7 ) - psEnc->sCmn.SNR_dB_Q7, SILK_FIX_CONST( 0.33, 16 ) ) ), psEnc->sCmn.subfr_length );
 
     for( k = 0; k < psEnc->sCmn.nb_subfr; k++ ) {
         /* Soft limit on ratio residual energy and squared gains */
@@ -71,23 +71,23 @@ void SKP_Silk_process_gains_FIX(
             /* recalculate with higher precision */
             gain_squared = SKP_SMLAWW( SKP_LSHIFT( ResNrgPart, 16 ), gain, gain );
             SKP_assert( gain_squared > 0 );
-            gain = SKP_Silk_SQRT_APPROX( gain_squared );                    /* Q8   */
+            gain = silk_SQRT_APPROX( gain_squared );                    /* Q8   */
             gain = SKP_min( gain, SKP_int32_MAX >> 8 );
             psEncCtrl->Gains_Q16[ k ] = SKP_LSHIFT_SAT32( gain, 8 );        /* Q16  */
         } else {
-            gain = SKP_Silk_SQRT_APPROX( gain_squared );                    /* Q0   */
+            gain = silk_SQRT_APPROX( gain_squared );                    /* Q0   */
             gain = SKP_min( gain, SKP_int32_MAX >> 16 );
             psEncCtrl->Gains_Q16[ k ] = SKP_LSHIFT_SAT32( gain, 16 );       /* Q16  */
         }
     }
 
     /* Noise shaping quantization */
-    SKP_Silk_gains_quant( psEnc->sCmn.indices.GainsIndices, psEncCtrl->Gains_Q16, 
-        &psShapeSt->LastGainIndex, psEnc->sCmn.nFramesAnalyzed, psEnc->sCmn.nb_subfr );
+    silk_gains_quant( psEnc->sCmn.indices.GainsIndices, psEncCtrl->Gains_Q16, 
+        &psShapeSt->LastGainIndex, psEnc->sCmn.nFramesEncoded, psEnc->sCmn.nb_subfr );
 
     /* Set quantizer offset for voiced signals. Larger offset when LTP coding gain is low or tilt is high (ie low-pass) */
     if( psEnc->sCmn.indices.signalType == TYPE_VOICED ) {
-        if( psEncCtrl->LTPredCodGain_Q7 + SKP_RSHIFT( psEnc->sCmn.input_tilt_Q15, 8 ) > SKP_FIX_CONST( 1.0, 7 ) ) {
+        if( psEncCtrl->LTPredCodGain_Q7 + SKP_RSHIFT( psEnc->sCmn.input_tilt_Q15, 8 ) > SILK_FIX_CONST( 1.0, 7 ) ) {
             psEnc->sCmn.indices.quantOffsetType = 0;
         } else {
             psEnc->sCmn.indices.quantOffsetType = 1;
@@ -95,14 +95,14 @@ void SKP_Silk_process_gains_FIX(
     }
 
     /* Quantizer boundary adjustment */
-    quant_offset_Q10 = SKP_Silk_Quantization_Offsets_Q10[ psEnc->sCmn.indices.signalType >> 1 ][ psEnc->sCmn.indices.quantOffsetType ];
-    psEncCtrl->Lambda_Q10 = SKP_FIX_CONST( LAMBDA_OFFSET, 10 )
-                          + SKP_SMULBB( SKP_FIX_CONST( LAMBDA_DELAYED_DECISIONS, 10 ), psEnc->sCmn.nStatesDelayedDecision )
-                          + SKP_SMULWB( SKP_FIX_CONST( LAMBDA_SPEECH_ACT,        18 ), psEnc->sCmn.speech_activity_Q8     )
-                          + SKP_SMULWB( SKP_FIX_CONST( LAMBDA_INPUT_QUALITY,     12 ), psEncCtrl->input_quality_Q14       )
-                          + SKP_SMULWB( SKP_FIX_CONST( LAMBDA_CODING_QUALITY,    12 ), psEncCtrl->coding_quality_Q14      )
-                          + SKP_SMULWB( SKP_FIX_CONST( LAMBDA_QUANT_OFFSET,      16 ), quant_offset_Q10                   );
+    quant_offset_Q10 = silk_Quantization_Offsets_Q10[ psEnc->sCmn.indices.signalType >> 1 ][ psEnc->sCmn.indices.quantOffsetType ];
+    psEncCtrl->Lambda_Q10 = SILK_FIX_CONST( LAMBDA_OFFSET, 10 )
+                          + SKP_SMULBB( SILK_FIX_CONST( LAMBDA_DELAYED_DECISIONS, 10 ), psEnc->sCmn.nStatesDelayedDecision )
+                          + SKP_SMULWB( SILK_FIX_CONST( LAMBDA_SPEECH_ACT,        18 ), psEnc->sCmn.speech_activity_Q8     )
+                          + SKP_SMULWB( SILK_FIX_CONST( LAMBDA_INPUT_QUALITY,     12 ), psEncCtrl->input_quality_Q14       )
+                          + SKP_SMULWB( SILK_FIX_CONST( LAMBDA_CODING_QUALITY,    12 ), psEncCtrl->coding_quality_Q14      )
+                          + SKP_SMULWB( SILK_FIX_CONST( LAMBDA_QUANT_OFFSET,      16 ), quant_offset_Q10                   );
 
     SKP_assert( psEncCtrl->Lambda_Q10 > 0 );
-    SKP_assert( psEncCtrl->Lambda_Q10 < SKP_FIX_CONST( 2, 10 ) );
+    SKP_assert( psEncCtrl->Lambda_Q10 < SILK_FIX_CONST( 2, 10 ) );
 }
diff --git a/silk/fixed/SKP_Silk_regularize_correlations_FIX.c b/silk/fixed/silk_regularize_correlations_FIX.c
similarity index 95%
rename from silk/fixed/SKP_Silk_regularize_correlations_FIX.c
rename to silk/fixed/silk_regularize_correlations_FIX.c
index f30f631c..b0737d42 100644
--- a/silk/fixed/SKP_Silk_regularize_correlations_FIX.c
+++ b/silk/fixed/silk_regularize_correlations_FIX.c
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FIX.h"
+#include "silk_main_FIX.h"
 
 /* Add noise to matrix diagonal */
-void SKP_Silk_regularize_correlations_FIX(
+void silk_regularize_correlations_FIX(
     SKP_int32                       *XX,                /* I/O  Correlation matrices                        */
     SKP_int32                       *xx,                /* I/O  Correlation values                          */
     SKP_int32                       noise,              /* I    Noise to add                                */
diff --git a/silk/fixed/SKP_Silk_residual_energy16_FIX.c b/silk/fixed/silk_residual_energy16_FIX.c
similarity index 92%
rename from silk/fixed/SKP_Silk_residual_energy16_FIX.c
rename to silk/fixed/silk_residual_energy16_FIX.c
index b559ce61..f6511604 100644
--- a/silk/fixed/SKP_Silk_residual_energy16_FIX.c
+++ b/silk/fixed/silk_residual_energy16_FIX.c
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FIX.h"
+#include "silk_main_FIX.h"
 
 /* Residual energy: nrg = wxx - 2 * wXx * c + c' * wXX * c */
-SKP_int32 SKP_Silk_residual_energy16_covar_FIX(
+SKP_int32 silk_residual_energy16_covar_FIX(
     const SKP_int16                 *c,                 /* I    Prediction vector                           */
     const SKP_int32                 *wXX,               /* I    Correlation matrix                          */
     const SKP_int32                 *wXx,               /* I    Correlation vector                          */
@@ -55,10 +55,10 @@ SKP_int32 SKP_Silk_residual_energy16_covar_FIX(
     for( i = 0; i < D; i++ ) {
         c_max = SKP_max_32( c_max, SKP_abs( ( SKP_int32 )c[ i ] ) );
     }
-    Qxtra = SKP_min_int( Qxtra, SKP_Silk_CLZ32( c_max ) - 17 );
+    Qxtra = SKP_min_int( Qxtra, silk_CLZ32( c_max ) - 17 );
 
     w_max = SKP_max_32( wXX[ 0 ], wXX[ D * D - 1 ] );
-    Qxtra = SKP_min_int( Qxtra, SKP_Silk_CLZ32( SKP_MUL( D, SKP_RSHIFT( SKP_SMULWB( w_max, c_max ), 4 ) ) ) - 5 );
+    Qxtra = SKP_min_int( Qxtra, silk_CLZ32( SKP_MUL( D, SKP_RSHIFT( SKP_SMULWB( w_max, c_max ), 4 ) ) ) - 5 );
     Qxtra = SKP_max_int( Qxtra, 0 );
     for( i = 0; i < D; i++ ) {
         cn[ i ] = SKP_LSHIFT( ( SKP_int )c[ i ], Qxtra );
diff --git a/silk/fixed/SKP_Silk_residual_energy_FIX.c b/silk/fixed/silk_residual_energy_FIX.c
similarity index 88%
rename from silk/fixed/SKP_Silk_residual_energy_FIX.c
rename to silk/fixed/silk_residual_energy_FIX.c
index 2fb531ca..c161bb29 100644
--- a/silk/fixed/SKP_Silk_residual_energy_FIX.c
+++ b/silk/fixed/silk_residual_energy_FIX.c
@@ -25,15 +25,15 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FIX.h"
+#include "silk_main_FIX.h"
 
 /* Calculates residual energies of input subframes where all subframes have LPC_order   */
 /* of preceeding samples                                                                */
-void SKP_Silk_residual_energy_FIX(
+void silk_residual_energy_FIX(
           SKP_int32 nrgs[ MAX_NB_SUBFR ],           /* O    Residual energy per subframe    */
           SKP_int   nrgsQ[ MAX_NB_SUBFR ],          /* O    Q value per subframe            */
     const SKP_int16 x[],                            /* I    Input signal                    */
-    const SKP_int16 a_Q12[ 2 ][ MAX_LPC_ORDER ],    /* I    AR coefs for each frame half    */
+          SKP_int16 a_Q12[ 2 ][ MAX_LPC_ORDER ],    /* I    AR coefs for each frame half    */
     const SKP_int32 gains[ MAX_NB_SUBFR ],          /* I    Quantization gains              */
     const SKP_int   subfr_length,                   /* I    Subframe length                 */
     const SKP_int   nb_subfr,                       /* I    Number of subframes             */
@@ -51,13 +51,13 @@ void SKP_Silk_residual_energy_FIX(
     /* Filter input to create the LPC residual for each frame half, and measure subframe energies */
     for( i = 0; i < nb_subfr >> 1; i++ ) {
         /* Calculate half frame LPC residual signal including preceeding samples */
-        SKP_Silk_LPC_analysis_filter( LPC_res, x_ptr, a_Q12[ i ], ( MAX_NB_SUBFR >> 1 ) * offset, LPC_order );
+        silk_LPC_analysis_filter( LPC_res, x_ptr, a_Q12[ i ], ( MAX_NB_SUBFR >> 1 ) * offset, LPC_order );
 
         /* Point to first subframe of the just calculated LPC residual signal */
         LPC_res_ptr = LPC_res + LPC_order;
         for( j = 0; j < ( MAX_NB_SUBFR >> 1 ); j++ ) {
             /* Measure subframe energy */
-            SKP_Silk_sum_sqr_shift( &nrgs[ i * ( MAX_NB_SUBFR >> 1 ) + j ], &rshift, LPC_res_ptr, subfr_length ); 
+            silk_sum_sqr_shift( &nrgs[ i * ( MAX_NB_SUBFR >> 1 ) + j ], &rshift, LPC_res_ptr, subfr_length ); 
             
             /* Set Q values for the measured energy */
             nrgsQ[ i * ( MAX_NB_SUBFR >> 1 ) + j ] = -rshift;
@@ -72,8 +72,8 @@ void SKP_Silk_residual_energy_FIX(
     /* Apply the squared subframe gains */
     for( i = 0; i < nb_subfr; i++ ) {
         /* Fully upscale gains and energies */
-        lz1 = SKP_Silk_CLZ32( nrgs[  i ] ) - 1; 
-        lz2 = SKP_Silk_CLZ32( gains[ i ] ) - 1; 
+        lz1 = silk_CLZ32( nrgs[  i ] ) - 1; 
+        lz2 = silk_CLZ32( gains[ i ] ) - 1; 
         
         tmp32 = SKP_LSHIFT32( gains[ i ], lz2 );
 
diff --git a/silk/fixed/SKP_Silk_solve_LS_FIX.c b/silk/fixed/silk_solve_LS_FIX.c
similarity index 89%
rename from silk/fixed/SKP_Silk_solve_LS_FIX.c
rename to silk/fixed/silk_solve_LS_FIX.c
index 25684185..a287a29b 100644
--- a/silk/fixed/SKP_Silk_solve_LS_FIX.c
+++ b/silk/fixed/silk_solve_LS_FIX.c
@@ -25,8 +25,8 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FIX.h"
-#include "SKP_Silk_tuning_parameters.h"
+#include "silk_main_FIX.h"
+#include "silk_tuning_parameters.h"
 
 /*****************************/
 /* Internal function headers */
@@ -38,7 +38,7 @@ typedef struct {
 } inv_D_t;
 
 /* Factorize square matrix A into LDL form */
-SKP_INLINE void SKP_Silk_LDL_factorize_FIX(
+SKP_INLINE void silk_LDL_factorize_FIX(
     SKP_int32           *A,         /* I/O Pointer to Symetric Square Matrix */
     SKP_int             M,          /* I   Size of Matrix */
     SKP_int32           *L_Q16,     /* I/O Pointer to Square Upper triangular Matrix */
@@ -46,7 +46,7 @@ SKP_INLINE void SKP_Silk_LDL_factorize_FIX(
 );
 
 /* Solve Lx = b, when L is lower triangular and has ones on the diagonal */
-SKP_INLINE void SKP_Silk_LS_SolveFirst_FIX(
+SKP_INLINE void silk_LS_SolveFirst_FIX(
     const SKP_int32     *L_Q16,     /* I Pointer to Lower Triangular Matrix */
     SKP_int             M,          /* I Dim of Matrix equation */
     const SKP_int32     *b,         /* I b Vector */
@@ -54,21 +54,21 @@ SKP_INLINE void SKP_Silk_LS_SolveFirst_FIX(
 );
 
 /* Solve L^t*x = b, where L is lower triangular with ones on the diagonal */
-SKP_INLINE void SKP_Silk_LS_SolveLast_FIX(
+SKP_INLINE void silk_LS_SolveLast_FIX(
     const SKP_int32     *L_Q16,     /* I Pointer to Lower Triangular Matrix */
     const SKP_int       M,          /* I Dim of Matrix equation */
     const SKP_int32     *b,         /* I b Vector */
     SKP_int32           *x_Q16      /* O x Vector */  
 );
 
-SKP_INLINE void SKP_Silk_LS_divide_Q16_FIX(
+SKP_INLINE void silk_LS_divide_Q16_FIX(
     SKP_int32           T[],    /* I/O Numenator vector */
     inv_D_t             *inv_D, /* I   1 / D vector     */
     SKP_int             M       /* I   dimension        */
 );
 
 /* Solves Ax = b, assuming A is symmetric */
-void SKP_Silk_solve_LDL_FIX(
+void silk_solve_LDL_FIX(
     SKP_int32                       *A,                 /* I    Pointer to symetric square matrix A         */
     SKP_int                         M,                  /* I    Size of matrix                              */
     const SKP_int32                 *b,                 /* I    Pointer to b vector                         */
@@ -85,27 +85,27 @@ void SKP_Silk_solve_LDL_FIX(
     Factorize A by LDL such that A = L*D*L',
     where L is lower triangular with ones on diagonal
     ****************************************************/
-    SKP_Silk_LDL_factorize_FIX( A, M, L_Q16, inv_D );
+    silk_LDL_factorize_FIX( A, M, L_Q16, inv_D );
         
     /****************************************************
     * substitute D*L'*x = Y. ie:
     L*D*L'*x = b => L*Y = b <=> Y = inv(L)*b
     ******************************************************/
-    SKP_Silk_LS_SolveFirst_FIX( L_Q16, M, b, Y );
+    silk_LS_SolveFirst_FIX( L_Q16, M, b, Y );
 
     /****************************************************
     D*L'*x = Y <=> L'*x = inv(D)*Y, because D is 
     diagonal just multiply with 1/d_i
     ****************************************************/
-    SKP_Silk_LS_divide_Q16_FIX( Y, inv_D, M );
+    silk_LS_divide_Q16_FIX( Y, inv_D, M );
 
     /****************************************************
     x = inv(L') * inv(D) * Y
     *****************************************************/
-    SKP_Silk_LS_SolveLast_FIX( L_Q16, M, Y, x_Q16 );
+    silk_LS_SolveLast_FIX( L_Q16, M, Y, x_Q16 );
 }
 
-SKP_INLINE void SKP_Silk_LDL_factorize_FIX(
+SKP_INLINE void silk_LDL_factorize_FIX(
     SKP_int32           *A,         /* I   Pointer to Symetric Square Matrix */
     SKP_int             M,          /* I   Size of Matrix */
     SKP_int32           *L_Q16,     /* I/O Pointer to Square Upper triangular Matrix */
@@ -121,7 +121,7 @@ SKP_INLINE void SKP_Silk_LDL_factorize_FIX(
     SKP_assert( M <= MAX_MATRIX_SIZE );
 
     status = 1;
-    diag_min_value = SKP_max_32( SKP_SMMUL( SKP_ADD_SAT32( A[ 0 ], A[ SKP_SMULBB( M, M ) - 1 ] ), SKP_FIX_CONST( FIND_LTP_COND_FAC, 31 ) ), 1 << 9 );
+    diag_min_value = SKP_max_32( SKP_SMMUL( SKP_ADD_SAT32( A[ 0 ], A[ SKP_SMULBB( M, M ) - 1 ] ), SILK_FIX_CONST( FIND_LTP_COND_FAC, 31 ) ), 1 << 9 );
     for( loop_count = 0; loop_count < M && status == 1; loop_count++ ) {
         status = 0;
         for( j = 0; j < M; j++ ) {
@@ -145,7 +145,7 @@ SKP_INLINE void SKP_Silk_LDL_factorize_FIX(
             D_Q0[ j ] = tmp_32;                         /* always < max(Correlation) */
         
             /* two-step division */
-            one_div_diag_Q36 = SKP_INVERSE32_varQ( tmp_32, 36 );                    /* Q36 */
+            one_div_diag_Q36 = silk_INVERSE32_varQ( tmp_32, 36 );                    /* Q36 */
             one_div_diag_Q40 = SKP_LSHIFT( one_div_diag_Q36, 4 );                   /* Q40 */
             err = SKP_SUB32( 1 << 24, SKP_SMULWW( tmp_32, one_div_diag_Q40 ) );     /* Q24 */
             one_div_diag_Q48 = SKP_SMULWW( err, one_div_diag_Q40 );                 /* Q48 */
@@ -177,7 +177,7 @@ SKP_INLINE void SKP_Silk_LDL_factorize_FIX(
     SKP_assert( status == 0 );
 }
 
-SKP_INLINE void SKP_Silk_LS_divide_Q16_FIX(
+SKP_INLINE void silk_LS_divide_Q16_FIX(
     SKP_int32 T[],      /* I/O Numenator vector */
     inv_D_t *inv_D,     /* I   1 / D vector     */
     SKP_int M           /* I   Order */
@@ -197,7 +197,7 @@ SKP_INLINE void SKP_Silk_LS_divide_Q16_FIX(
 }
 
 /* Solve Lx = b, when L is lower triangular and has ones on the diagonal */
-SKP_INLINE void SKP_Silk_LS_SolveFirst_FIX(
+SKP_INLINE void silk_LS_SolveFirst_FIX(
     const SKP_int32     *L_Q16, /* I Pointer to Lower Triangular Matrix */
     SKP_int             M,      /* I Dim of Matrix equation */
     const SKP_int32     *b,     /* I b Vector */
@@ -219,7 +219,7 @@ SKP_INLINE void SKP_Silk_LS_SolveFirst_FIX(
 }
 
 /* Solve L^t*x = b, where L is lower triangular with ones on the diagonal */
-SKP_INLINE void SKP_Silk_LS_SolveLast_FIX(
+SKP_INLINE void silk_LS_SolveLast_FIX(
     const SKP_int32     *L_Q16,     /* I Pointer to Lower Triangular Matrix */
     const SKP_int       M,          /* I Dim of Matrix equation */
     const SKP_int32     *b,         /* I b Vector */
diff --git a/silk/fixed/SKP_Silk_structs_FIX.h b/silk/fixed/silk_structs_FIX.h
similarity index 78%
rename from silk/fixed/SKP_Silk_structs_FIX.h
rename to silk/fixed/silk_structs_FIX.h
index f7e91d2d..a479b52c 100644
--- a/silk/fixed/SKP_Silk_structs_FIX.h
+++ b/silk/fixed/silk_structs_FIX.h
@@ -25,12 +25,12 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#ifndef SKP_SILK_STRUCTS_FIX_H
-#define SKP_SILK_STRUCTS_FIX_H
+#ifndef SILK_STRUCTS_FIX_H
+#define SILK_STRUCTS_FIX_H
 
-#include "SKP_Silk_typedef.h"
-#include "SKP_Silk_main.h"
-#include "SKP_Silk_structs.h"
+#include "silk_typedef.h"
+#include "silk_main.h"
+#include "silk_structs.h"
 
 #ifdef __cplusplus
 extern "C"
@@ -45,7 +45,7 @@ typedef struct {
     SKP_int32   HarmBoost_smth_Q16;
     SKP_int32   HarmShapeGain_smth_Q16;
     SKP_int32   Tilt_smth_Q16;
-} SKP_Silk_shape_state_FIX;
+} silk_shape_state_FIX;
 
 /********************************/
 /* Prefilter state              */
@@ -59,15 +59,15 @@ typedef struct {
     SKP_int     sHarmHP;
     SKP_int32   rand_seed;
     SKP_int     lagPrev;
-} SKP_Silk_prefilter_state_FIX;
+} silk_prefilter_state_FIX;
 
 /********************************/
 /* Encoder state FIX            */
 /********************************/
 typedef struct {
-    SKP_Silk_encoder_state          sCmn;                           /* Common struct, shared with floating-point code */
-    SKP_Silk_shape_state_FIX        sShape;                         /* Shape state                                                          */
-    SKP_Silk_prefilter_state_FIX    sPrefilt;                       /* Prefilter State                                                      */
+    silk_encoder_state          sCmn;                           /* Common struct, shared with floating-point code */
+    silk_shape_state_FIX        sShape;                         /* Shape state                                                          */
+    silk_prefilter_state_FIX    sPrefilt;                       /* Prefilter State                                                      */
 
     /* Buffer for find pitch and noise shape analysis */
     SKP_DWORD_ALIGN SKP_int16 x_buf[ 2 * MAX_FRAME_LENGTH + LA_SHAPE_MAX ];
@@ -76,7 +76,7 @@ typedef struct {
     /* Parameters For LTP scaling Control */
     SKP_int                         prevLTPredCodGain_Q7;
     SKP_int                         HPLTPredCodGain_Q7;
-} SKP_Silk_encoder_state_FIX;
+} silk_encoder_state_FIX;
 
 /************************/
 /* Encoder control FIX  */
@@ -109,7 +109,19 @@ typedef struct {
     SKP_int32   ResNrg[ MAX_NB_SUBFR ];             /* Residual energy per subframe                             */
     SKP_int     ResNrgQ[ MAX_NB_SUBFR ];            /* Q domain for the residual energy > 0                     */
     
-} SKP_Silk_encoder_control_FIX;
+} silk_encoder_control_FIX;
+
+/************************/
+/* Encoder Super Struct */
+/************************/
+typedef struct {
+    silk_encoder_state_FIX          state_Fxx[ ENCODER_NUM_CHANNELS ];
+    stereo_enc_state                    sStereo;
+    SKP_int32                           nBitsExceeded;
+    SKP_int                             nChannels;
+    SKP_int                             timeSinceSwitchAllowed_ms;
+    SKP_int                             allowBandwidthSwitch;
+} silk_encoder;
 
 
 #ifdef __cplusplus
diff --git a/silk/fixed/SKP_Silk_warped_autocorrelation_FIX.c b/silk/fixed/silk_warped_autocorrelation_FIX.c
similarity index 95%
rename from silk/fixed/SKP_Silk_warped_autocorrelation_FIX.c
rename to silk/fixed/silk_warped_autocorrelation_FIX.c
index 380104ff..18a3cad9 100644
--- a/silk/fixed/SKP_Silk_warped_autocorrelation_FIX.c
+++ b/silk/fixed/silk_warped_autocorrelation_FIX.c
@@ -25,13 +25,13 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FIX.h"
+#include "silk_main_FIX.h"
 
 #define QC  10
 #define QS  14
 
 /* Autocorrelations for a warped frequency axis */
-void SKP_Silk_warped_autocorrelation_FIX(
+void silk_warped_autocorrelation_FIX(
           SKP_int32                 *corr,              /* O    Result [order + 1]                      */
           SKP_int                   *scale,             /* O    Scaling of the correlation vector       */
     const SKP_int16                 *input,             /* I    Input data to correlate                 */
@@ -67,7 +67,7 @@ void SKP_Silk_warped_autocorrelation_FIX(
         corr_QC[  order ] += SKP_RSHIFT64( SKP_SMULL( tmp1_QS, state_QS[ 0 ] ), 2 * QS - QC );
     }
 
-    lsh = SKP_Silk_CLZ64( corr_QC[ 0 ] ) - 35;
+    lsh = silk_CLZ64( corr_QC[ 0 ] ) - 35;
     lsh = SKP_LIMIT( lsh, -12 - QC, 30 - QC );
     *scale = -( QC + lsh ); 
     SKP_assert( *scale >= -30 && *scale <= 12 );
diff --git a/silk/float/SKP_Silk_LPC_analysis_filter_FLP.c b/silk/float/silk_LPC_analysis_filter_FLP.c
similarity index 91%
rename from silk/float/SKP_Silk_LPC_analysis_filter_FLP.c
rename to silk/float/silk_LPC_analysis_filter_FLP.c
index e8d7d6ba..b28196cd 100644
--- a/silk/float/SKP_Silk_LPC_analysis_filter_FLP.c
+++ b/silk/float/silk_LPC_analysis_filter_FLP.c
@@ -26,7 +26,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
 #include <stdlib.h>
-#include "SKP_Silk_main_FLP.h"
+#include "silk_main_FLP.h"
 
 /*******************************************/
 /* LPC analysis filter                     */
@@ -36,7 +36,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /*******************************************/
 
 /* 16th order LPC analysis filter, does not write first 16 samples */
-void SKP_Silk_LPC_analysis_filter16_FLP(
+void silk_LPC_analysis_filter16_FLP(
           SKP_float                 r_LPC[],            /* O    LPC residual signal                     */
     const SKP_float                 PredCoef[],         /* I    LPC coefficients                        */
     const SKP_float                 s[],                /* I    Input signal                            */
@@ -74,7 +74,7 @@ void SKP_Silk_LPC_analysis_filter16_FLP(
 }
 
 /* 14th order LPC analysis filter, does not write first 14 samples */
-void SKP_Silk_LPC_analysis_filter14_FLP(
+void silk_LPC_analysis_filter14_FLP(
           SKP_float                 r_LPC[],            /* O    LPC residual signal                     */
     const SKP_float                 PredCoef[],         /* I    LPC coefficients                        */
     const SKP_float                 s[],                /* I    Input signal                            */
@@ -110,7 +110,7 @@ void SKP_Silk_LPC_analysis_filter14_FLP(
 }
 
 /* 12th order LPC analysis filter, does not write first 12 samples */
-void SKP_Silk_LPC_analysis_filter12_FLP(
+void silk_LPC_analysis_filter12_FLP(
           SKP_float                 r_LPC[],            /* O    LPC residual signal                     */
     const SKP_float                 PredCoef[],         /* I    LPC coefficients                        */
     const SKP_float                 s[],                /* I    Input signal                            */
@@ -144,7 +144,7 @@ void SKP_Silk_LPC_analysis_filter12_FLP(
 }
 
 /* 10th order LPC analysis filter, does not write first 10 samples */
-void SKP_Silk_LPC_analysis_filter10_FLP(
+void silk_LPC_analysis_filter10_FLP(
           SKP_float                 r_LPC[],            /* O    LPC residual signal                     */
     const SKP_float                 PredCoef[],         /* I    LPC coefficients                        */
     const SKP_float                 s[],                /* I    Input signal                            */
@@ -176,7 +176,7 @@ void SKP_Silk_LPC_analysis_filter10_FLP(
 }
 
 /* 8th order LPC analysis filter, does not write first 8 samples */
-void SKP_Silk_LPC_analysis_filter8_FLP(
+void silk_LPC_analysis_filter8_FLP(
           SKP_float                 r_LPC[],            /* O    LPC residual signal                     */
     const SKP_float                 PredCoef[],         /* I    LPC coefficients                        */
     const SKP_float                 s[],                /* I    Input signal                            */
@@ -206,7 +206,7 @@ void SKP_Silk_LPC_analysis_filter8_FLP(
 }
 
 /* 6th order LPC analysis filter, does not write first 6 samples */
-void SKP_Silk_LPC_analysis_filter6_FLP(
+void silk_LPC_analysis_filter6_FLP(
           SKP_float                 r_LPC[],            /* O    LPC residual signal                     */
     const SKP_float                 PredCoef[],         /* I    LPC coefficients                        */
     const SKP_float                 s[],                /* I    Input signal                            */
@@ -240,7 +240,7 @@ void SKP_Silk_LPC_analysis_filter6_FLP(
 /* first Order output samples are not set  */
 /*******************************************/
 
-void SKP_Silk_LPC_analysis_filter_FLP(
+void silk_LPC_analysis_filter_FLP(
           SKP_float                 r_LPC[],            /* O    LPC residual signal                     */
     const SKP_float                 PredCoef[],         /* I    LPC coefficients                        */
     const SKP_float                 s[],                /* I    Input signal                            */
@@ -252,27 +252,27 @@ void SKP_Silk_LPC_analysis_filter_FLP(
 
     switch( Order ) {
         case 6:
-            SKP_Silk_LPC_analysis_filter6_FLP(  r_LPC, PredCoef, s, length );
+            silk_LPC_analysis_filter6_FLP(  r_LPC, PredCoef, s, length );
         break;
 
         case 8:
-            SKP_Silk_LPC_analysis_filter8_FLP(  r_LPC, PredCoef, s, length );
+            silk_LPC_analysis_filter8_FLP(  r_LPC, PredCoef, s, length );
         break;
 
         case 10:
-            SKP_Silk_LPC_analysis_filter10_FLP( r_LPC, PredCoef, s, length );
+            silk_LPC_analysis_filter10_FLP( r_LPC, PredCoef, s, length );
         break;
 
         case 12:
-            SKP_Silk_LPC_analysis_filter12_FLP( r_LPC, PredCoef, s, length );
+            silk_LPC_analysis_filter12_FLP( r_LPC, PredCoef, s, length );
         break;
 
         case 14:
-            SKP_Silk_LPC_analysis_filter14_FLP( r_LPC, PredCoef, s, length );
+            silk_LPC_analysis_filter14_FLP( r_LPC, PredCoef, s, length );
         break;
 
         case 16:
-            SKP_Silk_LPC_analysis_filter16_FLP( r_LPC, PredCoef, s, length );
+            silk_LPC_analysis_filter16_FLP( r_LPC, PredCoef, s, length );
         break;
 
         default:
diff --git a/silk/float/SKP_Silk_LPC_inv_pred_gain_FLP.c b/silk/float/silk_LPC_inv_pred_gain_FLP.c
similarity index 76%
rename from silk/float/SKP_Silk_LPC_inv_pred_gain_FLP.c
rename to silk/float/silk_LPC_inv_pred_gain_FLP.c
index 4b2f2f2b..512ae5d8 100644
--- a/silk/float/SKP_Silk_LPC_inv_pred_gain_FLP.c
+++ b/silk/float/silk_LPC_inv_pred_gain_FLP.c
@@ -25,23 +25,15 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*                                                                      *
- * SKP_Silk_LPC_inverse_pred_gain.c                                   *
- *                                                                      *
- * compute inverse of LPC prediction gain, and                          *
- * test if LPC coefficients are stable (all poles within unit circle)   *
- *                                                                      *
- * Copyright 2008 (c), Skype Limited                                    *
- *                                                                      */
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_SigProc_FLP.h"
+#include "silk_SigProc_FIX.h"
+#include "silk_SigProc_FLP.h"
 
 #define RC_THRESHOLD        0.9999f
 
 /* compute inverse of LPC prediction gain, and                          */
 /* test if LPC coefficients are stable (all poles within unit circle)   */
-/* this code is based on SKP_Silk_a2k_FLP()                               */
-SKP_int SKP_Silk_LPC_inverse_pred_gain_FLP(   /* O:   returns 1 if unstable, otherwise 0      */
+/* this code is based on silk_a2k_FLP()                               */
+SKP_int silk_LPC_inverse_pred_gain_FLP(   /* O:   returns 1 if unstable, otherwise 0      */
     SKP_float       *invGain,               /* O:   inverse prediction gain, energy domain  */
     const SKP_float *A,                     /* I:   prediction coefficients [order]         */
     SKP_int32       order                   /* I:   prediction order                        */
@@ -49,7 +41,7 @@ SKP_int SKP_Silk_LPC_inverse_pred_gain_FLP(   /* O:   returns 1 if unstable, oth
 {
     SKP_int   k, n;
     double    rc, rc_mult1, rc_mult2;
-    SKP_float Atmp[ 2 ][ SKP_Silk_MAX_ORDER_LPC ];
+    SKP_float Atmp[ 2 ][ SILK_MAX_ORDER_LPC ];
     SKP_float *Aold, *Anew;
 
     Anew = Atmp[ order & 1 ];
diff --git a/silk/float/SKP_Silk_LTP_analysis_filter_FLP.c b/silk/float/silk_LTP_analysis_filter_FLP.c
similarity index 96%
rename from silk/float/SKP_Silk_LTP_analysis_filter_FLP.c
rename to silk/float/silk_LTP_analysis_filter_FLP.c
index b27b08d4..3bf61691 100644
--- a/silk/float/SKP_Silk_LTP_analysis_filter_FLP.c
+++ b/silk/float/silk_LTP_analysis_filter_FLP.c
@@ -25,9 +25,9 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FLP.h"
+#include "silk_main_FLP.h"
 
-void SKP_Silk_LTP_analysis_filter_FLP(
+void silk_LTP_analysis_filter_FLP(
           SKP_float         *LTP_res,                       /* O    LTP res MAX_NB_SUBFR*(pre_lgth+subfr_lngth) */
     const SKP_float         *x,                             /* I    Input signal, with preceeding samples       */
     const SKP_float         B[ LTP_ORDER * MAX_NB_SUBFR ],  /* I    LTP coefficients for each subframe          */
diff --git a/silk/float/SKP_Silk_LTP_scale_ctrl_FLP.c b/silk/float/silk_LTP_scale_ctrl_FLP.c
similarity index 83%
rename from silk/float/SKP_Silk_LTP_scale_ctrl_FLP.c
rename to silk/float/silk_LTP_scale_ctrl_FLP.c
index 4d9345d9..437c5249 100644
--- a/silk/float/SKP_Silk_LTP_scale_ctrl_FLP.c
+++ b/silk/float/silk_LTP_scale_ctrl_FLP.c
@@ -25,11 +25,11 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FLP.h"
+#include "silk_main_FLP.h"
 
-void SKP_Silk_LTP_scale_ctrl_FLP(
-    SKP_Silk_encoder_state_FLP      *psEnc,             /* I/O  Encoder state FLP                       */
-    SKP_Silk_encoder_control_FLP    *psEncCtrl          /* I/O  Encoder control FLP                     */
+void silk_LTP_scale_ctrl_FLP(
+    silk_encoder_state_FLP      *psEnc,             /* I/O  Encoder state FLP                       */
+    silk_encoder_control_FLP    *psEncCtrl          /* I/O  Encoder control FLP                     */
 )
 {
     SKP_int   round_loss;
@@ -41,12 +41,12 @@ void SKP_Silk_LTP_scale_ctrl_FLP(
     psEnc->prevLTPredCodGain = psEncCtrl->LTPredCodGain;
 
     /* Only scale if first frame in packet */
-    if( psEnc->sCmn.nFramesAnalyzed == 0 ) {
+    if( psEnc->sCmn.nFramesEncoded == 0 ) {
         round_loss = psEnc->sCmn.PacketLoss_perc + psEnc->sCmn.nFramesPerPacket;
         psEnc->sCmn.indices.LTP_scaleIndex = (SKP_int8)SKP_LIMIT( round_loss * psEnc->HPLTPredCodGain * 0.1f, 0.0f, 2.0f );
     } else {
         /* Default is minimum scaling */
         psEnc->sCmn.indices.LTP_scaleIndex = 0;
     }
-    psEncCtrl->LTP_scale = (SKP_float)SKP_Silk_LTPScales_table_Q14[ psEnc->sCmn.indices.LTP_scaleIndex ] / 16384.0f;
+    psEncCtrl->LTP_scale = (SKP_float)silk_LTPScales_table_Q14[ psEnc->sCmn.indices.LTP_scaleIndex ] / 16384.0f;
 }
diff --git a/silk/float/SKP_Silk_SigProc_FLP.h b/silk/float/silk_SigProc_FLP.h
similarity index 84%
rename from silk/float/SKP_Silk_SigProc_FLP.h
rename to silk/float/silk_SigProc_FLP.h
index 97067bd1..b20bcfd4 100644
--- a/silk/float/SKP_Silk_SigProc_FLP.h
+++ b/silk/float/silk_SigProc_FLP.h
@@ -25,12 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
+#ifndef _SILK_SIGPROC_FLP_H_
+#define _SILK_SIGPROC_FLP_H_
 
-#ifndef _SKP_SILK_SIGPROC_FLP_H_
-#define _SKP_SILK_SIGPROC_FLP_H_
-
-#include "SKP_Silk_SigProc_FIX.h"
-#include "float_cast.h"
+#include "silk_SigProc_FIX.h"
 #include <math.h>
 
 #ifdef  __cplusplus
@@ -43,7 +41,7 @@ extern "C"
 /********************************************************************/
 
 /* Chirp (bw expand) LP AR filter */
-void SKP_Silk_bwexpander_FLP( 
+void silk_bwexpander_FLP( 
     SKP_float *ar,                     /* io   AR filter to be expanded (without leading 1)    */
     const SKP_int d,                   /* i	length of ar                                       */
     const SKP_float chirp              /* i	chirp factor (typically in range (0..1) )          */
@@ -51,34 +49,34 @@ void SKP_Silk_bwexpander_FLP(
 
 /* compute inverse of LPC prediction gain, and							*/
 /* test if LPC coefficients are stable (all poles within unit circle)	*/
-/* this code is based on SKP_Silk_FLP_a2k()								*/
-SKP_int SKP_Silk_LPC_inverse_pred_gain_FLP( /* O:   returns 1 if unstable, otherwise 0    */
+/* this code is based on silk_FLP_a2k()								    */
+SKP_int silk_LPC_inverse_pred_gain_FLP( /* O:   returns 1 if unstable, otherwise 0    */
     SKP_float            *invGain,      /* O:   inverse prediction gain, energy domain	  */
     const SKP_float      *A,            /* I:   prediction coefficients [order]           */
     SKP_int32            order          /* I:   prediction order                          */
 );
 
-SKP_float SKP_Silk_schur_FLP(           /* O    returns residual energy                     */
+SKP_float silk_schur_FLP(               /* O    returns residual energy                     */
     SKP_float       refl_coef[],        /* O    reflection coefficients (length order)      */
     const SKP_float auto_corr[],        /* I    autocorrelation sequence (length order+1)   */
     SKP_int         order               /* I    order                                       */
 );
 
-void SKP_Silk_k2a_FLP(
+void silk_k2a_FLP(
     SKP_float           *A,             /* O:	prediction coefficients [order]           */
     const SKP_float     *rc,            /* I:	reflection coefficients [order]           */
     SKP_int32           order           /* I:	prediction order                          */
 );
 
 /* Solve the normal equations using the Levinson-Durbin recursion */
-SKP_float SKP_Silk_levinsondurbin_FLP(	/* O	prediction error energy						*/
+SKP_float silk_levinsondurbin_FLP(	    /* O	prediction error energy						*/
 	SKP_float		A[],				/* O	prediction coefficients	[order]				*/
 	const SKP_float corr[],				/* I	input auto-correlations [order + 1]			*/
 	const SKP_int	order				/* I	prediction order 							*/
 );
 
 /* compute autocorrelation */
-void SKP_Silk_autocorrelation_FLP( 
+void silk_autocorrelation_FLP( 
     SKP_float *results,                 /* o    result (length correlationCount)            */
     const SKP_float *inputData,         /* i    input data to correlate                     */
     SKP_int inputDataSize,              /* i    length of input                             */
@@ -90,7 +88,7 @@ void SKP_Silk_autocorrelation_FLP(
 #define SigProc_PE_MID_COMPLEX        1
 #define SigProc_PE_MAX_COMPLEX        2
 
-SKP_int SKP_Silk_pitch_analysis_core_FLP( /* O voicing estimate: 0 voiced, 1 unvoiced                       */
+SKP_int silk_pitch_analysis_core_FLP(   /* O voicing estimate: 0 voiced, 1 unvoiced                         */
     const SKP_float *signal,            /* I signal of length PE_FRAME_LENGTH_MS*Fs_kHz                     */
     SKP_int         *pitch_out,         /* O 4 pitch lag values                                             */
     SKP_int16       *lagIndex,          /* O lag Index                                                      */
@@ -106,15 +104,15 @@ SKP_int SKP_Silk_pitch_analysis_core_FLP( /* O voicing estimate: 0 voiced, 1 unv
 
 #define PI               (3.1415926536f)
 
-void SKP_Silk_insertion_sort_decreasing_FLP(
+void silk_insertion_sort_decreasing_FLP(
     SKP_float            *a,            /* I/O:  Unsorted / Sorted vector                */
-    SKP_int              *index,        /* O:    Index vector for the sorted elements    */
+    SKP_int              *idx,          /* O:    Index vector for the sorted elements    */
     const SKP_int        L,             /* I:    Vector length                           */
     const SKP_int        K              /* I:    Number of correctly sorted positions    */
 );
 
 /* Compute reflection coefficients from input signal */
-SKP_float SKP_Silk_burg_modified_FLP(       /* O    returns residual energy                                         */
+SKP_float silk_burg_modified_FLP(           /* O    returns residual energy                                         */
     SKP_float           A[],                /* O    prediction coefficients (length order)                          */
     const SKP_float     x[],                /* I    input signal, length: nb_subfr*(D+L_sub)                        */
     const SKP_int       subfr_length,       /* I    input signal subframe length (including D preceeding samples)   */
@@ -124,14 +122,14 @@ SKP_float SKP_Silk_burg_modified_FLP(       /* O    returns residual energy
 );
 
 /* multiply a vector by a constant */
-void SKP_Silk_scale_vector_FLP( 
+void silk_scale_vector_FLP( 
     SKP_float           *data1,
     SKP_float           gain, 
     SKP_int             dataSize
 );
 
 /* copy and multiply a vector by a constant */
-void SKP_Silk_scale_copy_vector_FLP( 
+void silk_scale_copy_vector_FLP( 
     SKP_float           *data_out, 
     const SKP_float     *data_in, 
     SKP_float           gain, 
@@ -139,14 +137,14 @@ void SKP_Silk_scale_copy_vector_FLP(
 );
 
 /* inner product of two SKP_float arrays, with result as double */
-double SKP_Silk_inner_product_FLP( 
+double silk_inner_product_FLP( 
     const SKP_float     *data1, 
     const SKP_float     *data2, 
     SKP_int             dataSize
 );
 
 /* sum of squares of a SKP_float array, with result as double */
-double SKP_Silk_energy_FLP( 
+double silk_energy_FLP( 
     const SKP_float     *data, 
     SKP_int             dataSize
 );
@@ -169,16 +167,15 @@ SKP_INLINE SKP_float SKP_sigmoid(SKP_float x)
 }
 
 /* floating-point to integer conversion (rounding) */
-#if 1
-/* use implementation in float_cast.h */
-#define SKP_float2int(x)   float2int(x)
-#else
-SKP_INLINE SKP_int32 SKP_float2int(SKP_float x) 
+SKP_INLINE SKP_int32 SKP_float2int(double x) 
 {
-    double y = x;
-    return (SKP_int32)( ( y > 0 ) ? y + 0.5 : y - 0.5 );
-}
+#ifdef _WIN32
+	double t = x + 6755399441055744.0;
+	return *((SKP_int32 *)( &t ));
+#else
+	return (SKP_int32)( ( x > 0 ) ? x + 0.5 : x - 0.5 );
 #endif
+}
 
 /* floating-point to integer conversion (rounding) */
 SKP_INLINE void SKP_float2short_array(
@@ -189,7 +186,13 @@ SKP_INLINE void SKP_float2short_array(
 {
     SKP_int32 k;
     for (k = length-1; k >= 0; k--) {
-        out[k] = (SKP_int16)SKP_SAT16( float2int( in[k] ) );
+#ifdef _WIN32
+		double t = in[k] + 6755399441055744.0;
+		out[k] = (SKP_int16)SKP_SAT16(*(( SKP_int32 * )( &t )));
+#else
+		double x = in[k];
+		out[k] = (SKP_int16)SKP_SAT16( ( x > 0 ) ? x + 0.5 : x - 0.5 );
+#endif
     }
 }
 
@@ -206,7 +209,8 @@ SKP_INLINE void SKP_short2float_array(
     }
 }
 
-#define SKP_round(x)		(SKP_float)((x)>=0 ? (SKP_int64)((x)+0.5) : (SKP_int64)((x)-0.5))
+/* using log2() helps the fixed-point conversion */
+SKP_INLINE SKP_float silk_log2( double x ) { return ( SKP_float )( 3.32192809488736 * log10( x ) ); }
 
 #ifdef  __cplusplus
 }
diff --git a/silk/float/SKP_Silk_apply_sine_window_FLP.c b/silk/float/silk_apply_sine_window_FLP.c
similarity index 96%
rename from silk/float/SKP_Silk_apply_sine_window_FLP.c
rename to silk/float/silk_apply_sine_window_FLP.c
index 1db6b147..450be05c 100644
--- a/silk/float/SKP_Silk_apply_sine_window_FLP.c
+++ b/silk/float/silk_apply_sine_window_FLP.c
@@ -25,13 +25,13 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FLP.h"
+#include "silk_main_FLP.h"
 
 /* Apply sine window to signal vector.                                                                  */
 /* Window types:                                                                                        */
 /*  1 -> sine window from 0 to pi/2                                                                     */
 /*  2 -> sine window from pi/2 to pi                                                                    */
-void SKP_Silk_apply_sine_window_FLP(
+void silk_apply_sine_window_FLP(
           SKP_float                 px_win[],           /* O    Pointer to windowed signal              */
     const SKP_float                 px[],               /* I    Pointer to input signal                 */
     const SKP_int                   win_type,           /* I    Selects a window type                   */
diff --git a/silk/float/SKP_Silk_autocorrelation_FLP.c b/silk/float/silk_autocorrelation_FLP.c
similarity index 90%
rename from silk/float/SKP_Silk_autocorrelation_FLP.c
rename to silk/float/silk_autocorrelation_FLP.c
index 2fa56b49..7cbf8711 100644
--- a/silk/float/SKP_Silk_autocorrelation_FLP.c
+++ b/silk/float/silk_autocorrelation_FLP.c
@@ -25,11 +25,11 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_typedef.h"
-#include "SKP_Silk_SigProc_FLP.h"
+#include "silk_typedef.h"
+#include "silk_SigProc_FLP.h"
 
 /* compute autocorrelation */
-void SKP_Silk_autocorrelation_FLP( 
+void silk_autocorrelation_FLP( 
     SKP_float       *results,           /* O    result (length correlationCount)            */
     const SKP_float *inputData,         /* I    input data to correlate                     */
     SKP_int         inputDataSize,      /* I    length of input                             */
@@ -43,6 +43,6 @@ void SKP_Silk_autocorrelation_FLP(
     }
 
     for( i = 0; i < correlationCount; i++ ) {
-        results[ i ] =  (SKP_float)SKP_Silk_inner_product_FLP( inputData, inputData + i, inputDataSize - i );
+        results[ i ] =  (SKP_float)silk_inner_product_FLP( inputData, inputData + i, inputDataSize - i );
     }
 }
diff --git a/silk/float/SKP_Silk_burg_modified_FLP.c b/silk/float/silk_burg_modified_FLP.c
similarity index 80%
rename from silk/float/SKP_Silk_burg_modified_FLP.c
rename to silk/float/silk_burg_modified_FLP.c
index 5b44c724..563216a7 100644
--- a/silk/float/SKP_Silk_burg_modified_FLP.c
+++ b/silk/float/silk_burg_modified_FLP.c
@@ -25,23 +25,13 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*                                                                      *
- * SKP_Silk_burg_modified.c                                           *
- *                                                                      *
- * Calculates the reflection coefficients from the input vector         *
- * Input vector contains nb_subfr sub vectors of length L_sub + D       *
- *                                                                      *
- * Copyright 2009 (c), Skype Limited                                    *
- * Date: 091130                                                         *
- */
-
-#include "SKP_Silk_SigProc_FLP.h"
+#include "silk_SigProc_FLP.h"
 
 #define MAX_FRAME_SIZE              384 // subfr_length * nb_subfr = ( 0.005 * 16000 + 16 ) * 4 = 384
 #define MAX_NB_SUBFR                4
 
 /* Compute reflection coefficients from input signal */
-SKP_float SKP_Silk_burg_modified_FLP(   /* O    returns residual energy                                         */
+SKP_float silk_burg_modified_FLP(   /* O    returns residual energy                                         */
     SKP_float       A[],                /* O    prediction coefficients (length order)                          */
     const SKP_float x[],                /* I    input signal, length: nb_subfr*(D+L_sub)                        */
     const SKP_int   subfr_length,       /* I    input signal subframe length (including D preceeding samples)   */
@@ -53,23 +43,23 @@ SKP_float SKP_Silk_burg_modified_FLP(   /* O    returns residual energy
     SKP_int         k, n, s;
     double          C0, num, nrg_f, nrg_b, rc, Atmp, tmp1, tmp2;
     const SKP_float *x_ptr;
-    double          C_first_row[ SKP_Silk_MAX_ORDER_LPC ], C_last_row[ SKP_Silk_MAX_ORDER_LPC ];
-    double          CAf[ SKP_Silk_MAX_ORDER_LPC + 1 ], CAb[ SKP_Silk_MAX_ORDER_LPC + 1 ];
-    double          Af[ SKP_Silk_MAX_ORDER_LPC ];
+    double          C_first_row[ SILK_MAX_ORDER_LPC ], C_last_row[ SILK_MAX_ORDER_LPC ];
+    double          CAf[ SILK_MAX_ORDER_LPC + 1 ], CAb[ SILK_MAX_ORDER_LPC + 1 ];
+    double          Af[ SILK_MAX_ORDER_LPC ];
 
     SKP_assert( subfr_length * nb_subfr <= MAX_FRAME_SIZE );
     SKP_assert( nb_subfr <= MAX_NB_SUBFR );
 
     /* Compute autocorrelations, added over subframes */
-    C0 = SKP_Silk_energy_FLP( x, nb_subfr * subfr_length );
-    SKP_memset( C_first_row, 0, SKP_Silk_MAX_ORDER_LPC * sizeof( double ) );
+    C0 = silk_energy_FLP( x, nb_subfr * subfr_length );
+    SKP_memset( C_first_row, 0, SILK_MAX_ORDER_LPC * sizeof( double ) );
     for( s = 0; s < nb_subfr; s++ ) {
         x_ptr = x + s * subfr_length;
         for( n = 1; n < D + 1; n++ ) {
-            C_first_row[ n - 1 ] += SKP_Silk_inner_product_FLP( x_ptr, x_ptr + n, subfr_length - n );
+            C_first_row[ n - 1 ] += silk_inner_product_FLP( x_ptr, x_ptr + n, subfr_length - n );
         }
     }
-    SKP_memcpy( C_last_row, C_first_row, SKP_Silk_MAX_ORDER_LPC * sizeof( double ) );
+    SKP_memcpy( C_last_row, C_first_row, SILK_MAX_ORDER_LPC * sizeof( double ) );
 
     /* Initialize */
     CAb[ 0 ] = CAf[ 0 ] = C0 + WhiteNoiseFrac * C0 + 1e-9f;
diff --git a/silk/float/SKP_Silk_bwexpander_FLP.c b/silk/float/silk_bwexpander_FLP.c
similarity index 95%
rename from silk/float/SKP_Silk_bwexpander_FLP.c
rename to silk/float/silk_bwexpander_FLP.c
index 3cf18090..d97328e1 100644
--- a/silk/float/SKP_Silk_bwexpander_FLP.c
+++ b/silk/float/silk_bwexpander_FLP.c
@@ -26,11 +26,11 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
 
-#include "SKP_Silk_SigProc_FLP.h"
+#include "silk_SigProc_FLP.h"
 
 
 /* Chirp (bw expand) LP AR filter */
-void SKP_Silk_bwexpander_FLP( 
+void silk_bwexpander_FLP( 
     SKP_float           *ar,        /* I/O  AR filter to be expanded (without leading 1)    */
     const SKP_int       d,          /* I    length of ar                                    */
     const SKP_float     chirp       /* I    chirp factor (typically in range (0..1) )       */
diff --git a/silk/float/SKP_Silk_corrMatrix_FLP.c b/silk/float/silk_corrMatrix_FLP.c
similarity index 92%
rename from silk/float/SKP_Silk_corrMatrix_FLP.c
rename to silk/float/silk_corrMatrix_FLP.c
index 0fdaabd0..4a259719 100644
--- a/silk/float/SKP_Silk_corrMatrix_FLP.c
+++ b/silk/float/silk_corrMatrix_FLP.c
@@ -29,10 +29,10 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  * Correlation matrix computations for LS estimate. 
  **********************************************************************/
 
-#include "SKP_Silk_main_FLP.h"
+#include "silk_main_FLP.h"
 
 /* Calculates correlation vector X'*t */
-void SKP_Silk_corrVector_FLP(
+void silk_corrVector_FLP(
     const SKP_float                 *x,                 /* I    x vector [L+order-1] used to create X   */
     const SKP_float                 *t,                 /* I    Target vector [L]                       */
     const SKP_int                   L,                  /* I    Length of vecors                        */
@@ -46,13 +46,13 @@ void SKP_Silk_corrVector_FLP(
     ptr1 = &x[ Order - 1 ];                     /* Points to first sample of column 0 of X: X[:,0] */
     for( lag = 0; lag < Order; lag++ ) {
         /* Calculate X[:,lag]'*t */
-        Xt[ lag ] = (SKP_float)SKP_Silk_inner_product_FLP( ptr1, t, L );
+        Xt[ lag ] = (SKP_float)silk_inner_product_FLP( ptr1, t, L );
         ptr1--;                                 /* Next column of X */
     }   
 }
 
 /* Calculates correlation matrix X'*X */
-void SKP_Silk_corrMatrix_FLP(
+void silk_corrMatrix_FLP(
     const SKP_float                 *x,                 /* I    x vector [ L+order-1 ] used to create X */
     const SKP_int                   L,                  /* I    Length of vectors                       */
     const SKP_int                   Order,              /* I    Max lag for correlation                 */
@@ -64,7 +64,7 @@ void SKP_Silk_corrMatrix_FLP(
     const SKP_float *ptr1, *ptr2;
 
     ptr1 = &x[ Order - 1 ];                     /* First sample of column 0 of X */
-    energy = SKP_Silk_energy_FLP( ptr1, L );  /* X[:,0]'*X[:,0] */
+    energy = silk_energy_FLP( ptr1, L );  /* X[:,0]'*X[:,0] */
     matrix_ptr( XX, 0, 0, Order ) = ( SKP_float )energy;
     for( j = 1; j < Order; j++ ) {
         /* Calculate X[:,j]'*X[:,j] */
@@ -75,7 +75,7 @@ void SKP_Silk_corrMatrix_FLP(
     ptr2 = &x[ Order - 2 ];                     /* First sample of column 1 of X */
     for( lag = 1; lag < Order; lag++ ) {
         /* Calculate X[:,0]'*X[:,lag] */
-        energy = SKP_Silk_inner_product_FLP( ptr1, ptr2, L );   
+        energy = silk_inner_product_FLP( ptr1, ptr2, L );   
         matrix_ptr( XX, lag, 0, Order ) = ( SKP_float )energy;
         matrix_ptr( XX, 0, lag, Order ) = ( SKP_float )energy;
         /* Calculate X[:,j]'*X[:,j + lag] */
diff --git a/silk/float/SKP_Silk_encode_frame_FLP.c b/silk/float/silk_encode_frame_FLP.c
similarity index 78%
rename from silk/float/SKP_Silk_encode_frame_FLP.c
rename to silk/float/silk_encode_frame_FLP.c
index 0a9fc0c5..d18f22b0 100644
--- a/silk/float/SKP_Silk_encode_frame_FLP.c
+++ b/silk/float/silk_encode_frame_FLP.c
@@ -25,22 +25,21 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FLP.h"
-#include "SKP_Silk_tuning_parameters.h"
+#include "silk_main_FLP.h"
+#include "silk_tuning_parameters.h"
 
 /****************/
 /* Encode frame */
 /****************/
-SKP_int SKP_Silk_encode_frame_FLP( 
-    SKP_Silk_encoder_state_FLP      *psEnc,             /* I/O  Encoder state FLP                       */
+SKP_int silk_encode_frame_FLP( 
+    silk_encoder_state_FLP          *psEnc,             /* I/O  Encoder state FLP                       */
     SKP_int32                       *pnBytesOut,        /*   O  Number of payload bytes                 */
     ec_enc                          *psRangeEnc         /* I/O  compressor data structure               */
 )
 {
-    SKP_Silk_encoder_control_FLP sEncCtrl;
+    silk_encoder_control_FLP sEncCtrl;
     SKP_int     i, ret = 0;
     SKP_float   *x_frame, *res_pitch_frame;
-    SKP_int16   pIn_HP[ MAX_FRAME_LENGTH ];
     SKP_float   xfw[ MAX_FRAME_LENGTH ];
     SKP_float   res_pitch[ 2 * MAX_FRAME_LENGTH + LA_PITCH_MAX ];
 
@@ -59,16 +58,16 @@ TIC(ENCODE_FRAME)
     /* Voice Activity Detection */
     /****************************/
 TIC(VAD)
-    ret = SKP_Silk_VAD_GetSA_Q8( &psEnc->sCmn, psEnc->sCmn.inputBuf );
+    ret = silk_VAD_GetSA_Q8( &psEnc->sCmn, psEnc->sCmn.inputBuf - 1 );
 TOC(VAD)
 
     /**************************************************/
     /* Convert speech activity into VAD and DTX flags */
     /**************************************************/
-    if( psEnc->sCmn.nFramesAnalyzed == 0 ) {
+    if( psEnc->sCmn.nFramesEncoded == 0 ) {
         psEnc->sCmn.inDTX = psEnc->sCmn.useDTX;
     }
-    if( psEnc->sCmn.speech_activity_Q8 < SKP_FIX_CONST( SPEECH_ACTIVITY_DTX_THRES, 8 ) ) {
+    if( psEnc->sCmn.speech_activity_Q8 < SILK_FIX_CONST( SPEECH_ACTIVITY_DTX_THRES, 8 ) ) {
         psEnc->sCmn.indices.signalType = TYPE_NO_VOICE_ACTIVITY;
         psEnc->sCmn.noSpeechCounter++;
         if( psEnc->sCmn.noSpeechCounter < NB_SPEECH_FRAMES_BEFORE_DTX ) {
@@ -77,28 +76,23 @@ TOC(VAD)
             psEnc->sCmn.noSpeechCounter = NB_SPEECH_FRAMES_BEFORE_DTX;
             psEnc->sCmn.inDTX           = 0;
         }
-        psEnc->sCmn.VAD_flags[ psEnc->sCmn.nFramesAnalyzed ] = 0;
+        psEnc->sCmn.VAD_flags[ psEnc->sCmn.nFramesEncoded ] = 0;
     } else {
         psEnc->sCmn.noSpeechCounter    = 0;
         psEnc->sCmn.inDTX              = 0;
         psEnc->sCmn.indices.signalType = TYPE_UNVOICED;
-        psEnc->sCmn.VAD_flags[ psEnc->sCmn.nFramesAnalyzed ] = 1;
+        psEnc->sCmn.VAD_flags[ psEnc->sCmn.nFramesEncoded ] = 1;
     }
 
-    /*******************************************/
-    /* High-pass filtering of the input signal */
-    /*******************************************/
-TIC(HP_IN)
-    SKP_Silk_HP_variable_cutoff( &psEnc->sCmn, pIn_HP, psEnc->sCmn.inputBuf, psEnc->sCmn.frame_length );
-TOC(HP_IN)
-
+    /***************************************/
     /* Ensure smooth bandwidth transitions */
-    SKP_Silk_LP_variable_cutoff( &psEnc->sCmn.sLP, pIn_HP, psEnc->sCmn.frame_length );
+    /***************************************/
+    silk_LP_variable_cutoff( &psEnc->sCmn.sLP, psEnc->sCmn.inputBuf - 1, psEnc->sCmn.frame_length );
 
     /*******************************************/
     /* Copy new frame to front of input buffer */
     /*******************************************/
-    SKP_short2float_array( x_frame + LA_SHAPE_MS * psEnc->sCmn.fs_kHz, pIn_HP, psEnc->sCmn.frame_length );
+    SKP_short2float_array( x_frame + LA_SHAPE_MS * psEnc->sCmn.fs_kHz, psEnc->sCmn.inputBuf - 1, psEnc->sCmn.frame_length );
 
     /* Add tiny signal to avoid high CPU load from denormalized floating point numbers */
     for( i = 0; i < 8; i++ ) {
@@ -109,49 +103,49 @@ TOC(HP_IN)
     /* Find pitch lags, initial LPC analysis */
     /*****************************************/
 TIC(FIND_PITCH)
-    SKP_Silk_find_pitch_lags_FLP( psEnc, &sEncCtrl, res_pitch, x_frame );
+    silk_find_pitch_lags_FLP( psEnc, &sEncCtrl, res_pitch, x_frame );
 TOC(FIND_PITCH)
 
     /************************/
     /* Noise shape analysis */
     /************************/
 TIC(NOISE_SHAPE_ANALYSIS)
-    SKP_Silk_noise_shape_analysis_FLP( psEnc, &sEncCtrl, res_pitch_frame, x_frame );
+    silk_noise_shape_analysis_FLP( psEnc, &sEncCtrl, res_pitch_frame, x_frame );
 TOC(NOISE_SHAPE_ANALYSIS)
 
     /***************************************************/
     /* Find linear prediction coefficients (LPC + LTP) */
     /***************************************************/
 TIC(FIND_PRED_COEF)
-    SKP_Silk_find_pred_coefs_FLP( psEnc, &sEncCtrl, res_pitch, x_frame );
+    silk_find_pred_coefs_FLP( psEnc, &sEncCtrl, res_pitch, x_frame );
 TOC(FIND_PRED_COEF)
 
     /****************************************/
     /* Process gains                        */
     /****************************************/
 TIC(PROCESS_GAINS)
-    SKP_Silk_process_gains_FLP( psEnc, &sEncCtrl );
+    silk_process_gains_FLP( psEnc, &sEncCtrl );
 TOC(PROCESS_GAINS)
 
-    /****************************************/
-    /* Low Bitrate Redundant Encoding       */
-    /****************************************/
-TIC(LBRR)
-    SKP_Silk_LBRR_encode_FLP( psEnc, &sEncCtrl, xfw );
-TOC(LBRR)
-
     /*****************************************/
     /* Prefiltering for noise shaper         */
     /*****************************************/
 TIC(PREFILTER)
-    SKP_Silk_prefilter_FLP( psEnc, &sEncCtrl, xfw, x_frame );
+    silk_prefilter_FLP( psEnc, &sEncCtrl, xfw, x_frame );
 TOC(PREFILTER)
 
+    /****************************************/
+    /* Low Bitrate Redundant Encoding       */
+    /****************************************/
+TIC(LBRR)
+    silk_LBRR_encode_FLP( psEnc, &sEncCtrl, xfw );
+TOC(LBRR)
+
     /*****************************************/
     /* Noise shaping quantization            */
     /*****************************************/
 TIC(NSQ)
-    SKP_Silk_NSQ_wrapper_FLP( psEnc, &sEncCtrl, &psEnc->sCmn.indices, &psEnc->sCmn.sNSQ, psEnc->sCmn.pulses, xfw );
+    silk_NSQ_wrapper_FLP( psEnc, &sEncCtrl, &psEnc->sCmn.indices, &psEnc->sCmn.sNSQ, psEnc->sCmn.pulses, xfw );
 TOC(NSQ)
 
     /* Update input buffer */
@@ -173,14 +167,14 @@ TOC(NSQ)
     /* Encode Parameters                    */
     /****************************************/
 TIC(ENCODE_PARAMS)
-    SKP_Silk_encode_indices( &psEnc->sCmn, psRangeEnc, psEnc->sCmn.nFramesAnalyzed, 0 );
+    silk_encode_indices( &psEnc->sCmn, psRangeEnc, psEnc->sCmn.nFramesEncoded, 0 );
 TOC(ENCODE_PARAMS)
 
     /****************************************/
     /* Encode Excitation Signal             */
     /****************************************/
 TIC(ENCODE_PULSES)
-    SKP_Silk_encode_pulses( psRangeEnc, psEnc->sCmn.indices.signalType, psEnc->sCmn.indices.quantOffsetType, 
+    silk_encode_pulses( psRangeEnc, psEnc->sCmn.indices.signalType, psEnc->sCmn.indices.quantOffsetType, 
         psEnc->sCmn.pulses, psEnc->sCmn.frame_length );
 TOC(ENCODE_PULSES)
 
@@ -188,12 +182,12 @@ TOC(ENCODE_PULSES)
     /* Finalize payload                     */
     /****************************************/
     psEnc->sCmn.first_frame_after_reset = 0;
-    if( ++psEnc->sCmn.nFramesAnalyzed >= psEnc->sCmn.nFramesPerPacket ) {
+    if( ++psEnc->sCmn.nFramesEncoded >= psEnc->sCmn.nFramesPerPacket ) {
         /* Payload size */
         *pnBytesOut = SKP_RSHIFT( ec_tell( psRangeEnc ) + 7, 3 );
 
         /* Reset the number of frames in payload buffer */
-        psEnc->sCmn.nFramesAnalyzed = 0;
+        psEnc->sCmn.nFramesEncoded = 0;
     } else {
         /* No payload this time */
         *pnBytesOut = 0;
@@ -222,32 +216,32 @@ TOC(ENCODE_FRAME)
 }
 
 /* Low-Bitrate Redundancy (LBRR) encoding. Reuse all parameters but encode excitation at lower bitrate  */
-void SKP_Silk_LBRR_encode_FLP(
-    SKP_Silk_encoder_state_FLP      *psEnc,             /* I/O  Encoder state FLP                       */
-    SKP_Silk_encoder_control_FLP    *psEncCtrl,         /* I/O  Encoder control FLP                     */
+void silk_LBRR_encode_FLP(
+    silk_encoder_state_FLP          *psEnc,             /* I/O  Encoder state FLP                       */
+    silk_encoder_control_FLP        *psEncCtrl,         /* I/O  Encoder control FLP                     */
     const SKP_float                 xfw[]               /* I    Input signal                            */
 )
 {
     SKP_int     k;
     SKP_int32   Gains_Q16[ MAX_NB_SUBFR ];
     SKP_float   TempGains[ MAX_NB_SUBFR ];
-    SideInfoIndices *psIndices_LBRR = &psEnc->sCmn.indices_LBRR[ psEnc->sCmn.nFramesAnalyzed ];
-    SKP_Silk_nsq_state sNSQ_LBRR;
+    SideInfoIndices *psIndices_LBRR = &psEnc->sCmn.indices_LBRR[ psEnc->sCmn.nFramesEncoded ];
+    silk_nsq_state sNSQ_LBRR;
 
     /*******************************************/
     /* Control use of inband LBRR              */
     /*******************************************/
-    if( psEnc->sCmn.LBRR_enabled && psEnc->sCmn.speech_activity_Q8 > SKP_FIX_CONST( LBRR_SPEECH_ACTIVITY_THRES, 8 ) ) {
-        psEnc->sCmn.LBRR_flags[ psEnc->sCmn.nFramesAnalyzed ] = 1;
+    if( psEnc->sCmn.LBRR_enabled && psEnc->sCmn.speech_activity_Q8 > SILK_FIX_CONST( LBRR_SPEECH_ACTIVITY_THRES, 8 ) ) {
+        psEnc->sCmn.LBRR_flags[ psEnc->sCmn.nFramesEncoded ] = 1;
 
         /* Copy noise shaping quantizer state and quantization indices from regular encoding */
-        SKP_memcpy( &sNSQ_LBRR, &psEnc->sCmn.sNSQ, sizeof( SKP_Silk_nsq_state ) );
+        SKP_memcpy( &sNSQ_LBRR, &psEnc->sCmn.sNSQ, sizeof( silk_nsq_state ) );
         SKP_memcpy( psIndices_LBRR, &psEnc->sCmn.indices, sizeof( SideInfoIndices ) );
 
         /* Save original gains */
         SKP_memcpy( TempGains, psEncCtrl->Gains, psEnc->sCmn.nb_subfr * sizeof( SKP_float ) );
 
-        if( psEnc->sCmn.nFramesAnalyzed == 0 || psEnc->sCmn.LBRR_flags[ psEnc->sCmn.nFramesAnalyzed - 1 ] == 0 ) {
+        if( psEnc->sCmn.nFramesEncoded == 0 || psEnc->sCmn.LBRR_flags[ psEnc->sCmn.nFramesEncoded - 1 ] == 0 ) {
             /* First frame in packet or previous frame not LBRR coded */
             psEnc->sCmn.LBRRprevLastGainIndex = psEnc->sShape.LastGainIndex;
 
@@ -257,19 +251,19 @@ void SKP_Silk_LBRR_encode_FLP(
         }
 
         /* Decode to get gains in sync with decoder */
-        SKP_Silk_gains_dequant( Gains_Q16, psIndices_LBRR->GainsIndices, 
-            &psEnc->sCmn.LBRRprevLastGainIndex, psEnc->sCmn.nFramesAnalyzed, psEnc->sCmn.nb_subfr );
+        silk_gains_dequant( Gains_Q16, psIndices_LBRR->GainsIndices, 
+            &psEnc->sCmn.LBRRprevLastGainIndex, psEnc->sCmn.nFramesEncoded, psEnc->sCmn.nb_subfr );
 
         /* Overwrite unquantized gains with quantized gains and convert back to Q0 from Q16 */
         for( k = 0; k <  psEnc->sCmn.nb_subfr; k++ ) {
-            psEncCtrl->Gains[ k ] = Gains_Q16[ k ] / 65536.0f;
+            psEncCtrl->Gains[ k ] = Gains_Q16[ k ] * ( 1.0f / 65536.0f );
         }
 
         /*****************************************/
         /* Noise shaping quantization            */
         /*****************************************/
-        SKP_Silk_NSQ_wrapper_FLP( psEnc, psEncCtrl, psIndices_LBRR, &sNSQ_LBRR, 
-            psEnc->sCmn.pulses_LBRR[ psEnc->sCmn.nFramesAnalyzed ], xfw );
+        silk_NSQ_wrapper_FLP( psEnc, psEncCtrl, psIndices_LBRR, &sNSQ_LBRR, 
+            psEnc->sCmn.pulses_LBRR[ psEnc->sCmn.nFramesEncoded ], xfw );
 
         /* Restore original gains */
         SKP_memcpy( psEncCtrl->Gains, TempGains, psEnc->sCmn.nb_subfr * sizeof( SKP_float ) );
diff --git a/silk/float/SKP_Silk_energy_FLP.c b/silk/float/silk_energy_FLP.c
similarity index 95%
rename from silk/float/SKP_Silk_energy_FLP.c
rename to silk/float/silk_energy_FLP.c
index 579364d2..87cbb9e3 100644
--- a/silk/float/SKP_Silk_energy_FLP.c
+++ b/silk/float/silk_energy_FLP.c
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_SigProc_FLP.h"
+#include "silk_SigProc_FLP.h"
 
 /* sum of squares of a SKP_float array, with result as double */
-double SKP_Silk_energy_FLP( 
+double silk_energy_FLP( 
     const SKP_float     *data, 
     SKP_int             dataSize
 )
diff --git a/silk/float/SKP_Silk_find_LPC_FLP.c b/silk/float/silk_find_LPC_FLP.c
similarity index 80%
rename from silk/float/SKP_Silk_find_LPC_FLP.c
rename to silk/float/silk_find_LPC_FLP.c
index 88392f39..d0f52953 100644
--- a/silk/float/SKP_Silk_find_LPC_FLP.c
+++ b/silk/float/silk_find_LPC_FLP.c
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FLP.h"
-#include "SKP_Silk_tuning_parameters.h"
+#include "silk_main_FLP.h"
+#include "silk_tuning_parameters.h"
 
-void SKP_Silk_find_LPC_FLP(
+void silk_find_LPC_FLP(
           SKP_int16                 NLSF_Q15[],             /* O    NLSFs                                   */
           SKP_int8                  *interpIndex,           /* O    NLSF interp. index for NLSF interp.     */
     const SKP_int16                 prev_NLSFq_Q15[],       /* I    Previous NLSFs, for NLSF interpolation  */
@@ -53,39 +53,39 @@ void SKP_Silk_find_LPC_FLP(
     *interpIndex = 4;
 
     /* Burg AR analysis for the full frame */
-    res_nrg = SKP_Silk_burg_modified_FLP( a, x, subfr_length, nb_subfr, FIND_LPC_COND_FAC, LPC_order );
+    res_nrg = silk_burg_modified_FLP( a, x, subfr_length, nb_subfr, FIND_LPC_COND_FAC, LPC_order );
 
     if( firstFrameAfterReset ) {
-        SKP_Silk_bwexpander_FLP( a, LPC_order, FIND_LPC_CHIRP_FIRST_FRAME );
+        silk_bwexpander_FLP( a, LPC_order, FIND_LPC_CHIRP_FIRST_FRAME );
     } else {
-        SKP_Silk_bwexpander_FLP( a_tmp, LPC_order, FIND_LPC_CHIRP );
+        silk_bwexpander_FLP( a_tmp, LPC_order, FIND_LPC_CHIRP );
     }
 
     if( useInterpNLSFs && !firstFrameAfterReset && nb_subfr == MAX_NB_SUBFR ) {
         /* Optimal solution for last 10 ms; subtract residual energy here, as that's easier than        */
         /* adding it to the residual energy of the first 10 ms in each iteration of the search below    */
-        res_nrg -= SKP_Silk_burg_modified_FLP( a_tmp, x + ( MAX_NB_SUBFR / 2 ) * subfr_length, 
+        res_nrg -= silk_burg_modified_FLP( a_tmp, x + ( MAX_NB_SUBFR / 2 ) * subfr_length, 
             subfr_length, MAX_NB_SUBFR / 2, FIND_LPC_COND_FAC, LPC_order );
 
-        SKP_Silk_bwexpander_FLP( a_tmp, LPC_order, FIND_LPC_CHIRP );
+        silk_bwexpander_FLP( a_tmp, LPC_order, FIND_LPC_CHIRP );
 
         /* Convert to NLSFs */
-        SKP_Silk_A2NLSF_FLP( NLSF_Q15, a_tmp, LPC_order );
+        silk_A2NLSF_FLP( NLSF_Q15, a_tmp, LPC_order );
 
         /* Search over interpolation indices to find the one with lowest residual energy */
         res_nrg_2nd = SKP_float_MAX;
         for( k = 3; k >= 0; k-- ) {
             /* Interpolate NLSFs for first half */
-            SKP_Silk_interpolate( NLSF0_Q15, prev_NLSFq_Q15, NLSF_Q15, k, LPC_order );
+            silk_interpolate( NLSF0_Q15, prev_NLSFq_Q15, NLSF_Q15, k, LPC_order );
 
             /* Convert to LPC for residual energy evaluation */
-            SKP_Silk_NLSF2A_stable_FLP( a_tmp, NLSF0_Q15, LPC_order );
+            silk_NLSF2A_stable_FLP( a_tmp, NLSF0_Q15, LPC_order );
 
             /* Calculate residual energy with LSF interpolation */
-            SKP_Silk_LPC_analysis_filter_FLP( LPC_res, a_tmp, x, 2 * subfr_length, LPC_order );
+            silk_LPC_analysis_filter_FLP( LPC_res, a_tmp, x, 2 * subfr_length, LPC_order );
             res_nrg_interp = 
-                SKP_Silk_energy_FLP( LPC_res + LPC_order,                subfr_length - LPC_order ) + 
-                SKP_Silk_energy_FLP( LPC_res + LPC_order + subfr_length, subfr_length - LPC_order );
+                silk_energy_FLP( LPC_res + LPC_order,                subfr_length - LPC_order ) + 
+                silk_energy_FLP( LPC_res + LPC_order + subfr_length, subfr_length - LPC_order );
 
             /* Determine whether current interpolated NLSFs are best so far */
             if( res_nrg_interp < res_nrg ) {
@@ -102,7 +102,7 @@ void SKP_Silk_find_LPC_FLP(
 
     if( *interpIndex == 4 ) {
         /* NLSF interpolation is currently inactive, calculate NLSFs from full frame AR coefficients */
-        SKP_Silk_A2NLSF_FLP( NLSF_Q15, a, LPC_order );
+        silk_A2NLSF_FLP( NLSF_Q15, a, LPC_order );
     }
 
     SKP_assert( *interpIndex == 4 || ( useInterpNLSFs && !firstFrameAfterReset && nb_subfr == MAX_NB_SUBFR ) );
diff --git a/silk/float/SKP_Silk_find_LTP_FLP.c b/silk/float/silk_find_LTP_FLP.c
similarity index 85%
rename from silk/float/SKP_Silk_find_LTP_FLP.c
rename to silk/float/silk_find_LTP_FLP.c
index 7daf5fbb..e8fe1e77 100644
--- a/silk/float/SKP_Silk_find_LTP_FLP.c
+++ b/silk/float/silk_find_LTP_FLP.c
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FLP.h"
-#include "SKP_Silk_tuning_parameters.h"
+#include "silk_main_FLP.h"
+#include "silk_tuning_parameters.h"
 
-void SKP_Silk_find_LTP_FLP(
+void silk_find_LTP_FLP(
           SKP_float b[ MAX_NB_SUBFR * LTP_ORDER ],          /* O    LTP coefs                               */
           SKP_float WLTP[ MAX_NB_SUBFR * LTP_ORDER * LTP_ORDER ], /* O    Weight for LTP quantization       */
           SKP_float *LTPredCodGain,                         /* O    LTP coding gain                         */
@@ -54,22 +54,22 @@ void SKP_Silk_find_LTP_FLP(
     for( k = 0; k < nb_subfr; k++ ) {
         lag_ptr = r_ptr - ( lag[ k ] + LTP_ORDER / 2 );
 
-        SKP_Silk_corrMatrix_FLP( lag_ptr, subfr_length, LTP_ORDER, WLTP_ptr );
-        SKP_Silk_corrVector_FLP( lag_ptr, r_ptr, subfr_length, LTP_ORDER, Rr );
+        silk_corrMatrix_FLP( lag_ptr, subfr_length, LTP_ORDER, WLTP_ptr );
+        silk_corrVector_FLP( lag_ptr, r_ptr, subfr_length, LTP_ORDER, Rr );
 
-        rr[ k ] = ( SKP_float )SKP_Silk_energy_FLP( r_ptr, subfr_length );
+        rr[ k ] = ( SKP_float )silk_energy_FLP( r_ptr, subfr_length );
         regu = 1.0f + rr[ k ] + 
             matrix_ptr( WLTP_ptr, 0, 0, LTP_ORDER ) + 
             matrix_ptr( WLTP_ptr, LTP_ORDER-1, LTP_ORDER-1, LTP_ORDER );
         regu *= LTP_DAMPING / 3;
-        SKP_Silk_regularize_correlations_FLP( WLTP_ptr, &rr[ k ], regu, LTP_ORDER );
-        SKP_Silk_solve_LDL_FLP( WLTP_ptr, LTP_ORDER, Rr, b_ptr );
+        silk_regularize_correlations_FLP( WLTP_ptr, &rr[ k ], regu, LTP_ORDER );
+        silk_solve_LDL_FLP( WLTP_ptr, LTP_ORDER, Rr, b_ptr );
 
         /* Calculate residual energy */
-        nrg[ k ] = SKP_Silk_residual_energy_covar_FLP( b_ptr, WLTP_ptr, Rr, rr[ k ], LTP_ORDER );
+        nrg[ k ] = silk_residual_energy_covar_FLP( b_ptr, WLTP_ptr, Rr, rr[ k ], LTP_ORDER );
 
         temp = Wght[ k ] / ( nrg[ k ] * Wght[ k ] + 0.01f * subfr_length );
-        SKP_Silk_scale_vector_FLP( WLTP_ptr, temp, LTP_ORDER * LTP_ORDER );
+        silk_scale_vector_FLP( WLTP_ptr, temp, LTP_ORDER * LTP_ORDER );
         w[ k ] = matrix_ptr( WLTP_ptr, LTP_ORDER / 2, LTP_ORDER / 2, LTP_ORDER );
     
         r_ptr    += subfr_length;
@@ -87,7 +87,7 @@ void SKP_Silk_find_LTP_FLP(
         }
         
         SKP_assert( LPC_LTP_res_nrg > 0 );
-        *LTPredCodGain = 3.0f * SKP_Silk_log2( LPC_res_nrg / LPC_LTP_res_nrg );
+        *LTPredCodGain = 3.0f * silk_log2( LPC_res_nrg / LPC_LTP_res_nrg );
     }
 
     /* Smoothing */
diff --git a/silk/float/SKP_Silk_find_pitch_lags_FLP.c b/silk/float/silk_find_pitch_lags_FLP.c
similarity index 82%
rename from silk/float/SKP_Silk_find_pitch_lags_FLP.c
rename to silk/float/silk_find_pitch_lags_FLP.c
index c8de0e26..8f213ca7 100644
--- a/silk/float/SKP_Silk_find_pitch_lags_FLP.c
+++ b/silk/float/silk_find_pitch_lags_FLP.c
@@ -26,12 +26,12 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
 #include <stdlib.h>
-#include "SKP_Silk_main_FLP.h"
-#include "SKP_Silk_tuning_parameters.h"
+#include "silk_main_FLP.h"
+#include "silk_tuning_parameters.h"
 
-void SKP_Silk_find_pitch_lags_FLP(
-    SKP_Silk_encoder_state_FLP      *psEnc,             /* I/O  Encoder state FLP                       */
-    SKP_Silk_encoder_control_FLP    *psEncCtrl,         /* I/O  Encoder control FLP                     */
+void silk_find_pitch_lags_FLP(
+    silk_encoder_state_FLP          *psEnc,             /* I/O  Encoder state FLP                       */
+    silk_encoder_control_FLP        *psEncCtrl,         /* I/O  Encoder control FLP                     */
           SKP_float                 res[],              /* O    Residual                                */
     const SKP_float                 x[]                 /* I    Speech signal                           */
 )
@@ -64,7 +64,7 @@ void SKP_Silk_find_pitch_lags_FLP(
     /* First LA_LTP samples */
     x_buf_ptr = x_buf + buf_len - psEnc->sCmn.pitch_LPC_win_length;
     Wsig_ptr  = Wsig;
-    SKP_Silk_apply_sine_window_FLP( Wsig_ptr, x_buf_ptr, 1, psEnc->sCmn.la_pitch );
+    silk_apply_sine_window_FLP( Wsig_ptr, x_buf_ptr, 1, psEnc->sCmn.la_pitch );
 
     /* Middle non-windowed samples */
     Wsig_ptr  += psEnc->sCmn.la_pitch;
@@ -74,30 +74,30 @@ void SKP_Silk_find_pitch_lags_FLP(
     /* Last LA_LTP samples */
     Wsig_ptr  += psEnc->sCmn.pitch_LPC_win_length - ( psEnc->sCmn.la_pitch << 1 );
     x_buf_ptr += psEnc->sCmn.pitch_LPC_win_length - ( psEnc->sCmn.la_pitch << 1 );
-    SKP_Silk_apply_sine_window_FLP( Wsig_ptr, x_buf_ptr, 2, psEnc->sCmn.la_pitch );
+    silk_apply_sine_window_FLP( Wsig_ptr, x_buf_ptr, 2, psEnc->sCmn.la_pitch );
 
     /* Calculate autocorrelation sequence */
-    SKP_Silk_autocorrelation_FLP( auto_corr, Wsig, psEnc->sCmn.pitch_LPC_win_length, psEnc->sCmn.pitchEstimationLPCOrder + 1 );
+    silk_autocorrelation_FLP( auto_corr, Wsig, psEnc->sCmn.pitch_LPC_win_length, psEnc->sCmn.pitchEstimationLPCOrder + 1 );
 
     /* Add white noise, as a fraction of the energy */
     auto_corr[ 0 ] += auto_corr[ 0 ] * FIND_PITCH_WHITE_NOISE_FRACTION + 1;
 
     /* Calculate the reflection coefficients using Schur */
-    res_nrg = SKP_Silk_schur_FLP( refl_coef, auto_corr, psEnc->sCmn.pitchEstimationLPCOrder );
+    res_nrg = silk_schur_FLP( refl_coef, auto_corr, psEnc->sCmn.pitchEstimationLPCOrder );
 
     /* Prediction gain */
     psEncCtrl->predGain = auto_corr[ 0 ] / SKP_max_float( res_nrg, 1.0f );
 
     /* Convert reflection coefficients to prediction coefficients */
-    SKP_Silk_k2a_FLP( A, refl_coef, psEnc->sCmn.pitchEstimationLPCOrder );
+    silk_k2a_FLP( A, refl_coef, psEnc->sCmn.pitchEstimationLPCOrder );
 
     /* Bandwidth expansion */
-    SKP_Silk_bwexpander_FLP( A, psEnc->sCmn.pitchEstimationLPCOrder, FIND_PITCH_BANDWITH_EXPANSION );
+    silk_bwexpander_FLP( A, psEnc->sCmn.pitchEstimationLPCOrder, FIND_PITCH_BANDWITH_EXPANSION );
     
     /*****************************************/
     /* LPC analysis filtering                */
     /*****************************************/
-    SKP_Silk_LPC_analysis_filter_FLP( res, A, x_buf, buf_len, psEnc->sCmn.pitchEstimationLPCOrder );
+    silk_LPC_analysis_filter_FLP( res, A, x_buf, buf_len, psEnc->sCmn.pitchEstimationLPCOrder );
 
     if( psEnc->sCmn.indices.signalType != TYPE_NO_VOICE_ACTIVITY && psEnc->sCmn.first_frame_after_reset == 0 ) {
         /* Threshold for pitch estimator */
@@ -110,7 +110,7 @@ void SKP_Silk_find_pitch_lags_FLP(
         /*****************************************/
         /* Call Pitch estimator                  */
         /*****************************************/
-        if( SKP_Silk_pitch_analysis_core_FLP( res, psEncCtrl->pitchL, &psEnc->sCmn.indices.lagIndex, 
+        if( silk_pitch_analysis_core_FLP( res, psEncCtrl->pitchL, &psEnc->sCmn.indices.lagIndex, 
             &psEnc->sCmn.indices.contourIndex, &psEnc->LTPCorr, psEnc->sCmn.prevLag, psEnc->sCmn.pitchEstimationThreshold_Q16 / 65536.0f,
             thrhld, psEnc->sCmn.fs_kHz, psEnc->sCmn.pitchEstimationComplexity, psEnc->sCmn.nb_subfr ) == 0 ) 
         {
diff --git a/silk/float/SKP_Silk_find_pred_coefs_FLP.c b/silk/float/silk_find_pred_coefs_FLP.c
similarity index 82%
rename from silk/float/SKP_Silk_find_pred_coefs_FLP.c
rename to silk/float/silk_find_pred_coefs_FLP.c
index 4224402f..200c78c5 100644
--- a/silk/float/SKP_Silk_find_pred_coefs_FLP.c
+++ b/silk/float/silk_find_pred_coefs_FLP.c
@@ -25,12 +25,12 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FLP.h"
+#include "silk_main_FLP.h"
 
 
-void SKP_Silk_find_pred_coefs_FLP(
-    SKP_Silk_encoder_state_FLP      *psEnc,             /* I/O  Encoder state FLP                       */
-    SKP_Silk_encoder_control_FLP    *psEncCtrl,         /* I/O  Encoder control FLP                     */
+void silk_find_pred_coefs_FLP(
+    silk_encoder_state_FLP          *psEnc,             /* I/O  Encoder state FLP                       */
+    silk_encoder_control_FLP        *psEncCtrl,         /* I/O  Encoder control FLP                     */
     const SKP_float                 res_pitch[],        /* I    Residual from pitch analysis            */
     const SKP_float                 x[]                 /* I    Speech signal                           */
 )
@@ -56,7 +56,7 @@ void SKP_Silk_find_pred_coefs_FLP(
         SKP_assert( psEnc->sCmn.ltp_mem_length - psEnc->sCmn.predictLPCOrder >= psEncCtrl->pitchL[ 0 ] + LTP_ORDER / 2 );
 
         /* LTP analysis */
-        SKP_Silk_find_LTP_FLP( psEncCtrl->LTPCoef, WLTP, &psEncCtrl->LTPredCodGain, res_pitch, 
+        silk_find_LTP_FLP( psEncCtrl->LTPCoef, WLTP, &psEncCtrl->LTPredCodGain, res_pitch, 
             psEncCtrl->pitchL, Wght, psEnc->sCmn.subfr_length, psEnc->sCmn.nb_subfr, psEnc->sCmn.ltp_mem_length );
 
 #ifdef SAVE_ALL_INTERNAL_DATA
@@ -65,14 +65,14 @@ void SKP_Silk_find_pred_coefs_FLP(
 #endif
 
         /* Quantize LTP gain parameters */
-        SKP_Silk_quant_LTP_gains_FLP( psEncCtrl->LTPCoef, psEnc->sCmn.indices.LTPIndex, &psEnc->sCmn.indices.PERIndex, 
+        silk_quant_LTP_gains_FLP( psEncCtrl->LTPCoef, psEnc->sCmn.indices.LTPIndex, &psEnc->sCmn.indices.PERIndex, 
             WLTP, psEnc->sCmn.mu_LTP_Q9, psEnc->sCmn.LTPQuantLowComplexity, psEnc->sCmn.nb_subfr );
 
         /* Control LTP scaling */
-        SKP_Silk_LTP_scale_ctrl_FLP( psEnc, psEncCtrl );
+        silk_LTP_scale_ctrl_FLP( psEnc, psEncCtrl );
 
         /* Create LTP residual */
-        SKP_Silk_LTP_analysis_filter_FLP( LPC_in_pre, x - psEnc->sCmn.predictLPCOrder, psEncCtrl->LTPCoef, 
+        silk_LTP_analysis_filter_FLP( LPC_in_pre, x - psEnc->sCmn.predictLPCOrder, psEncCtrl->LTPCoef, 
             psEncCtrl->pitchL, invGains, psEnc->sCmn.subfr_length, psEnc->sCmn.nb_subfr, psEnc->sCmn.predictLPCOrder );
 
     } else {
@@ -83,7 +83,7 @@ void SKP_Silk_find_pred_coefs_FLP(
         x_ptr     = x - psEnc->sCmn.predictLPCOrder;
         x_pre_ptr = LPC_in_pre;
         for( i = 0; i < psEnc->sCmn.nb_subfr; i++ ) {
-            SKP_Silk_scale_copy_vector_FLP( x_pre_ptr, x_ptr, invGains[ i ], 
+            silk_scale_copy_vector_FLP( x_pre_ptr, x_ptr, invGains[ i ], 
                 psEnc->sCmn.subfr_length + psEnc->sCmn.predictLPCOrder );
             x_pre_ptr += psEnc->sCmn.subfr_length + psEnc->sCmn.predictLPCOrder;
             x_ptr     += psEnc->sCmn.subfr_length;
@@ -94,17 +94,17 @@ void SKP_Silk_find_pred_coefs_FLP(
     }
 
     /* LPC_in_pre contains the LTP-filtered input for voiced, and the unfiltered input for unvoiced */
-    SKP_Silk_find_LPC_FLP( NLSF_Q15, &psEnc->sCmn.indices.NLSFInterpCoef_Q2, psEnc->sCmn.prev_NLSFq_Q15, 
+    silk_find_LPC_FLP( NLSF_Q15, &psEnc->sCmn.indices.NLSFInterpCoef_Q2, psEnc->sCmn.prev_NLSFq_Q15, 
         psEnc->sCmn.useInterpolatedNLSFs, psEnc->sCmn.first_frame_after_reset, psEnc->sCmn.predictLPCOrder, 
         LPC_in_pre, psEnc->sCmn.subfr_length + psEnc->sCmn.predictLPCOrder, psEnc->sCmn.nb_subfr );
 
     /* Quantize LSFs */
 TIC(LSF_quant);
-    SKP_Silk_process_NLSFs_FLP( &psEnc->sCmn, psEncCtrl->PredCoef, NLSF_Q15, psEnc->sCmn.prev_NLSFq_Q15 );
+    silk_process_NLSFs_FLP( &psEnc->sCmn, psEncCtrl->PredCoef, NLSF_Q15, psEnc->sCmn.prev_NLSFq_Q15 );
 TOC(LSF_quant);
 
     /* Calculate residual energy using quantized LPC coefficients */
-    SKP_Silk_residual_energy_FLP( psEncCtrl->ResNrg, LPC_in_pre, psEncCtrl->PredCoef, psEncCtrl->Gains,
+    silk_residual_energy_FLP( psEncCtrl->ResNrg, LPC_in_pre, psEncCtrl->PredCoef, psEncCtrl->Gains,
         psEnc->sCmn.subfr_length, psEnc->sCmn.nb_subfr, psEnc->sCmn.predictLPCOrder );
 
     /* Copy to prediction struct for use in next frame for fluctuation reduction */
diff --git a/silk/float/silk_float.vcxproj b/silk/float/silk_float.vcxproj
index 313ba68c..8a6c9862 100644
--- a/silk/float/silk_float.vcxproj
+++ b/silk/float/silk_float.vcxproj
@@ -86,43 +86,43 @@
     <None Include="ReadMe.txt" />
   </ItemGroup>
   <ItemGroup>
-    <ClCompile Include="SKP_Silk_apply_sine_window_FLP.c" />
-    <ClCompile Include="SKP_Silk_autocorrelation_FLP.c" />
-    <ClCompile Include="SKP_Silk_burg_modified_FLP.c" />
-    <ClCompile Include="SKP_Silk_bwexpander_FLP.c" />
-    <ClCompile Include="SKP_Silk_corrMatrix_FLP.c" />
-    <ClCompile Include="SKP_Silk_encode_frame_FLP.c" />
-    <ClCompile Include="SKP_Silk_energy_FLP.c" />
-    <ClCompile Include="SKP_Silk_find_LPC_FLP.c" />
-    <ClCompile Include="SKP_Silk_find_LTP_FLP.c" />
-    <ClCompile Include="SKP_Silk_find_pitch_lags_FLP.c" />
-    <ClCompile Include="SKP_Silk_find_pred_coefs_FLP.c" />
-    <ClCompile Include="SKP_Silk_inner_product_FLP.c" />
-    <ClCompile Include="SKP_Silk_k2a_FLP.c" />
-    <ClCompile Include="SKP_Silk_levinsondurbin_FLP.c" />
-    <ClCompile Include="SKP_Silk_LPC_analysis_filter_FLP.c" />
-    <ClCompile Include="SKP_Silk_LPC_inv_pred_gain_FLP.c" />
-    <ClCompile Include="SKP_Silk_LTP_analysis_filter_FLP.c" />
-    <ClCompile Include="SKP_Silk_LTP_scale_ctrl_FLP.c" />
-    <ClCompile Include="SKP_Silk_noise_shape_analysis_FLP.c" />
-    <ClCompile Include="SKP_Silk_pitch_analysis_core_FLP.c" />
-    <ClCompile Include="SKP_Silk_prefilter_FLP.c" />
-    <ClCompile Include="SKP_Silk_process_gains_FLP.c" />
-    <ClCompile Include="SKP_Silk_regularize_correlations_FLP.c" />
-    <ClCompile Include="SKP_Silk_residual_energy_FLP.c" />
-    <ClCompile Include="SKP_Silk_scale_copy_vector_FLP.c" />
-    <ClCompile Include="SKP_Silk_scale_vector_FLP.c" />
-    <ClCompile Include="SKP_Silk_schur_FLP.c" />
-    <ClCompile Include="SKP_Silk_solve_LS_FLP.c" />
-    <ClCompile Include="SKP_Silk_sort_FLP.c" />
-    <ClCompile Include="SKP_Silk_warped_autocorrelation_FLP.c" />
-    <ClCompile Include="SKP_Silk_wrappers_FLP.c" />
+    <ClCompile Include="silk_apply_sine_window_FLP.c" />
+    <ClCompile Include="silk_autocorrelation_FLP.c" />
+    <ClCompile Include="silk_burg_modified_FLP.c" />
+    <ClCompile Include="silk_bwexpander_FLP.c" />
+    <ClCompile Include="silk_corrMatrix_FLP.c" />
+    <ClCompile Include="silk_encode_frame_FLP.c" />
+    <ClCompile Include="silk_energy_FLP.c" />
+    <ClCompile Include="silk_find_LPC_FLP.c" />
+    <ClCompile Include="silk_find_LTP_FLP.c" />
+    <ClCompile Include="silk_find_pitch_lags_FLP.c" />
+    <ClCompile Include="silk_find_pred_coefs_FLP.c" />
+    <ClCompile Include="silk_inner_product_FLP.c" />
+    <ClCompile Include="silk_k2a_FLP.c" />
+    <ClCompile Include="silk_levinsondurbin_FLP.c" />
+    <ClCompile Include="silk_LPC_analysis_filter_FLP.c" />
+    <ClCompile Include="silk_LPC_inv_pred_gain_FLP.c" />
+    <ClCompile Include="silk_LTP_analysis_filter_FLP.c" />
+    <ClCompile Include="silk_LTP_scale_ctrl_FLP.c" />
+    <ClCompile Include="silk_noise_shape_analysis_FLP.c" />
+    <ClCompile Include="silk_pitch_analysis_core_FLP.c" />
+    <ClCompile Include="silk_prefilter_FLP.c" />
+    <ClCompile Include="silk_process_gains_FLP.c" />
+    <ClCompile Include="silk_regularize_correlations_FLP.c" />
+    <ClCompile Include="silk_residual_energy_FLP.c" />
+    <ClCompile Include="silk_scale_copy_vector_FLP.c" />
+    <ClCompile Include="silk_scale_vector_FLP.c" />
+    <ClCompile Include="silk_schur_FLP.c" />
+    <ClCompile Include="silk_solve_LS_FLP.c" />
+    <ClCompile Include="silk_sort_FLP.c" />
+    <ClCompile Include="silk_warped_autocorrelation_FLP.c" />
+    <ClCompile Include="silk_wrappers_FLP.c" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\win32\config.h" />
-    <ClInclude Include="SKP_Silk_main_FLP.h" />
-    <ClInclude Include="SKP_Silk_SigProc_FLP.h" />
-    <ClInclude Include="SKP_Silk_structs_FLP.h" />
+    <ClInclude Include="silk_main_FLP.h" />
+    <ClInclude Include="silk_SigProc_FLP.h" />
+    <ClInclude Include="silk_structs_FLP.h" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
diff --git a/silk/float/silk_float.vcxproj.filters b/silk/float/silk_float.vcxproj.filters
index 8c6efb0c..debd97d9 100644
--- a/silk/float/silk_float.vcxproj.filters
+++ b/silk/float/silk_float.vcxproj.filters
@@ -18,112 +18,112 @@
     <None Include="ReadMe.txt" />
   </ItemGroup>
   <ItemGroup>
-    <ClCompile Include="SKP_Silk_LPC_analysis_filter_FLP.c">
+    <ClCompile Include="silk_apply_sine_window_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_LPC_inv_pred_gain_FLP.c">
+    <ClCompile Include="silk_autocorrelation_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_LTP_analysis_filter_FLP.c">
+    <ClCompile Include="silk_burg_modified_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_LTP_scale_ctrl_FLP.c">
+    <ClCompile Include="silk_bwexpander_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_noise_shape_analysis_FLP.c">
+    <ClCompile Include="silk_corrMatrix_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_pitch_analysis_core_FLP.c">
+    <ClCompile Include="silk_encode_frame_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_prefilter_FLP.c">
+    <ClCompile Include="silk_energy_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_process_gains_FLP.c">
+    <ClCompile Include="silk_find_LPC_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_regularize_correlations_FLP.c">
+    <ClCompile Include="silk_find_LTP_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_residual_energy_FLP.c">
+    <ClCompile Include="silk_find_pitch_lags_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_scale_copy_vector_FLP.c">
+    <ClCompile Include="silk_find_pred_coefs_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_scale_vector_FLP.c">
+    <ClCompile Include="silk_inner_product_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_schur_FLP.c">
+    <ClCompile Include="silk_k2a_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_solve_LS_FLP.c">
+    <ClCompile Include="silk_levinsondurbin_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_sort_FLP.c">
+    <ClCompile Include="silk_LPC_analysis_filter_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_warped_autocorrelation_FLP.c">
+    <ClCompile Include="silk_LPC_inv_pred_gain_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_wrappers_FLP.c">
+    <ClCompile Include="silk_LTP_analysis_filter_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_apply_sine_window_FLP.c">
+    <ClCompile Include="silk_LTP_scale_ctrl_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_autocorrelation_FLP.c">
+    <ClCompile Include="silk_noise_shape_analysis_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_burg_modified_FLP.c">
+    <ClCompile Include="silk_pitch_analysis_core_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_bwexpander_FLP.c">
+    <ClCompile Include="silk_prefilter_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_corrMatrix_FLP.c">
+    <ClCompile Include="silk_process_gains_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_encode_frame_FLP.c">
+    <ClCompile Include="silk_regularize_correlations_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_energy_FLP.c">
+    <ClCompile Include="silk_residual_energy_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_find_LPC_FLP.c">
+    <ClCompile Include="silk_scale_copy_vector_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_find_LTP_FLP.c">
+    <ClCompile Include="silk_scale_vector_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_find_pitch_lags_FLP.c">
+    <ClCompile Include="silk_schur_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_find_pred_coefs_FLP.c">
+    <ClCompile Include="silk_solve_LS_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_inner_product_FLP.c">
+    <ClCompile Include="silk_sort_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_k2a_FLP.c">
+    <ClCompile Include="silk_warped_autocorrelation_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_levinsondurbin_FLP.c">
+    <ClCompile Include="silk_wrappers_FLP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
   </ItemGroup>
   <ItemGroup>
-    <ClInclude Include="SKP_Silk_main_FLP.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-    <ClInclude Include="SKP_Silk_SigProc_FLP.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-    <ClInclude Include="SKP_Silk_structs_FLP.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
     <ClInclude Include="..\..\win32\config.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="silk_main_FLP.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="silk_SigProc_FLP.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="silk_structs_FLP.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/silk/float/SKP_Silk_inner_product_FLP.c b/silk/float/silk_inner_product_FLP.c
similarity index 94%
rename from silk/float/SKP_Silk_inner_product_FLP.c
rename to silk/float/silk_inner_product_FLP.c
index d9012941..80ad1f5d 100644
--- a/silk/float/SKP_Silk_inner_product_FLP.c
+++ b/silk/float/silk_inner_product_FLP.c
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_SigProc_FLP.h"
+#include "silk_SigProc_FLP.h"
 
 /* inner product of two SKP_float arrays, with result as double     */
-double SKP_Silk_inner_product_FLP(      /* O    result              */
+double silk_inner_product_FLP(      /* O    result              */
     const SKP_float     *data1,         /* I    vector 1            */
     const SKP_float     *data2,         /* I    vector 2            */
     SKP_int             dataSize        /* I    length of vectors   */
diff --git a/silk/float/SKP_Silk_k2a_FLP.c b/silk/float/silk_k2a_FLP.c
similarity index 74%
rename from silk/float/SKP_Silk_k2a_FLP.c
rename to silk/float/silk_k2a_FLP.c
index d6d4b165..8aec7da7 100644
--- a/silk/float/SKP_Silk_k2a_FLP.c
+++ b/silk/float/silk_k2a_FLP.c
@@ -25,26 +25,17 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*                                                                      *
- * SKP_Silk_k2a.c                                                     *
- *                                                                      *
- * step up function, converts reflection coefficients to prediction     *
- * coefficients                                                         *
- *                                                                      *
- * Copyright 2008 (c), Skype Limited                                    *
- * Date: 080103                                                         *
- *                                                                      */
-#include "SKP_Silk_SigProc_FLP.h"
+#include "silk_SigProc_FLP.h"
 
 /* step up function, converts reflection coefficients to prediction coefficients */
-void SKP_Silk_k2a_FLP(
+void silk_k2a_FLP(
     SKP_float       *A,                 /* O:   prediction coefficients [order]             */
     const SKP_float *rc,                /* I:   reflection coefficients [order]             */
     SKP_int32       order               /* I:   prediction order                            */
 )
 {
     SKP_int   k, n;
-    SKP_float Atmp[ SKP_Silk_MAX_ORDER_LPC ];
+    SKP_float Atmp[ SILK_MAX_ORDER_LPC ];
 
     for( k = 0; k < order; k++ ){
         for( n = 0; n < k; n++ ){
diff --git a/silk/float/SKP_Silk_levinsondurbin_FLP.c b/silk/float/silk_levinsondurbin_FLP.c
similarity index 93%
rename from silk/float/SKP_Silk_levinsondurbin_FLP.c
rename to silk/float/silk_levinsondurbin_FLP.c
index 6b09f02d..b58a48a3 100644
--- a/silk/float/SKP_Silk_levinsondurbin_FLP.c
+++ b/silk/float/silk_levinsondurbin_FLP.c
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_SigProc_FLP.h"
+#include "silk_SigProc_FLP.h"
 
 /* Solve the normal equations using the Levinson-Durbin recursion */
-SKP_float SKP_Silk_levinsondurbin_FLP(    /* O    prediction error energy                     */
+SKP_float silk_levinsondurbin_FLP(    /* O    prediction error energy                     */
     SKP_float       A[],                /* O    prediction coefficients [order]             */
     const SKP_float corr[],             /* I    input auto-correlations [order + 1]         */
     const SKP_int   order               /* I    prediction order                            */
diff --git a/silk/float/SKP_Silk_main_FLP.h b/silk/float/silk_main_FLP.h
similarity index 83%
rename from silk/float/SKP_Silk_main_FLP.h
rename to silk/float/silk_main_FLP.h
index faa20c87..5d03f0c2 100644
--- a/silk/float/SKP_Silk_main_FLP.h
+++ b/silk/float/silk_main_FLP.h
@@ -25,15 +25,15 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#ifndef SKP_SILK_MAIN_FLP_H
-#define SKP_SILK_MAIN_FLP_H
+#ifndef SILK_MAIN_FLP_H
+#define SILK_MAIN_FLP_H
 
-#include "SKP_Silk_SigProc_FLP.h"
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_structs_FLP.h"
-#include "SKP_Silk_main.h"
-#include "SKP_Silk_define.h"
-#include "SKP_debug.h"
+#include "silk_SigProc_FLP.h"
+#include "silk_SigProc_FIX.h"
+#include "silk_structs_FLP.h"
+#include "silk_main.h"
+#include "silk_define.h"
+#include "silk_debug.h"
 #include "entenc.h"
 
 #ifdef __cplusplus
@@ -41,33 +41,42 @@ extern "C"
 {
 #endif
 
+#define silk_encoder_state_Fxx      silk_encoder_state_FLP
+#define silk_encode_frame_Fxx       silk_encode_frame_FLP
+
 /*********************/
 /* Encoder Functions */
 /*********************/
 
+/* High-pass filter with cutoff frequency adaptation based on pitch lag statistics */
+void silk_HP_variable_cutoff(
+    silk_encoder_state_Fxx          state_Fxx[],        /* I/O  Encoder states                          */
+    const SKP_int                   nChannels           /* I    Number of channels                      */
+);
+
 /* Encoder main function */
-SKP_int SKP_Silk_encode_frame_FLP( 
-    SKP_Silk_encoder_state_FLP      *psEnc,             /* I/O  Encoder state FLP                       */
+SKP_int silk_encode_frame_FLP( 
+    silk_encoder_state_FLP          *psEnc,             /* I/O  Encoder state FLP                       */
     SKP_int32                       *pnBytesOut,        /*   O  Number of payload bytes;                */
-    ec_enc                          *psRangeEnc         /* I/O  compressor data structure                */
+    ec_enc                          *psRangeEnc         /* I/O  compressor data structure               */
 );
 
 /* Low Bitrate Redundancy (LBRR) encoding. Reuse all parameters but encode with lower bitrate           */
-void SKP_Silk_LBRR_encode_FLP(
-    SKP_Silk_encoder_state_FLP      *psEnc,             /* I/O  Encoder state FLP                       */
-    SKP_Silk_encoder_control_FLP    *psEncCtrl,         /* I/O  Encoder control FLP                     */
+void silk_LBRR_encode_FLP(
+    silk_encoder_state_FLP          *psEnc,             /* I/O  Encoder state FLP                       */
+    silk_encoder_control_FLP        *psEncCtrl,         /* I/O  Encoder control FLP                     */
     const SKP_float                 xfw[]               /* I    Input signal                            */
 );
 
 /* Initializes the Silk encoder state */
-SKP_int SKP_Silk_init_encoder(
-    SKP_Silk_encoder_state_FLP      *psEnc              /* I/O  Encoder state FLP                       */
+SKP_int silk_init_encoder(
+    silk_encoder_state_FLP          *psEnc              /* I/O  Encoder state FLP                       */
 );
 
 /* Control the Silk encoder */
-SKP_int SKP_Silk_control_encoder( 
-    SKP_Silk_encoder_state_FLP      *psEnc,             /* I/O  Pointer to Silk encoder state FLP       */
-    SKP_SILK_SDK_EncControlStruct   *encControl,        /* I:   Control structure                       */
+SKP_int silk_control_encoder( 
+    silk_encoder_state_FLP          *psEnc,             /* I/O  Pointer to Silk encoder state FLP       */
+    silk_EncControlStruct           *encControl,        /* I:   Control structure                       */
     const SKP_int32                 TargetRate_bps,     /* I    Target max bitrate (bps)                */
     const SKP_int                   allow_bw_switch,    /* I    Flag to allow switching audio bandwidth */
     const SKP_int                   channelNb           /* I    Channel number                          */
@@ -76,9 +85,9 @@ SKP_int SKP_Silk_control_encoder(
 /****************/
 /* Prefiltering */
 /****************/
-void SKP_Silk_prefilter_FLP(
-    SKP_Silk_encoder_state_FLP          *psEnc,         /* I/O  Encoder state FLP                       */
-    const SKP_Silk_encoder_control_FLP  *psEncCtrl,     /* I    Encoder control FLP                     */
+void silk_prefilter_FLP(
+    silk_encoder_state_FLP              *psEnc,         /* I/O  Encoder state FLP                       */
+    const silk_encoder_control_FLP      *psEncCtrl,     /* I    Encoder control FLP                     */
           SKP_float                     xw[],           /* O    Weighted signal                         */
     const SKP_float                     x[]             /* I    Speech signal                           */
 );
@@ -87,15 +96,15 @@ void SKP_Silk_prefilter_FLP(
 /* Noise shaping analysis */
 /**************************/
 /* Compute noise shaping coefficients and initial gain values */
-void SKP_Silk_noise_shape_analysis_FLP(
-    SKP_Silk_encoder_state_FLP      *psEnc,             /* I/O  Encoder state FLP                       */
-    SKP_Silk_encoder_control_FLP    *psEncCtrl,         /* I/O  Encoder control FLP                     */
+void silk_noise_shape_analysis_FLP(
+    silk_encoder_state_FLP          *psEnc,             /* I/O  Encoder state FLP                       */
+    silk_encoder_control_FLP        *psEncCtrl,         /* I/O  Encoder control FLP                     */
     const SKP_float                 *pitch_res,         /* I    LPC residual from pitch analysis        */
     const SKP_float                 *x                  /* I    Input signal [frame_length + la_shape]  */
 );
 
 /* Autocorrelations for a warped frequency axis */
-void SKP_Silk_warped_autocorrelation_FLP( 
+void silk_warped_autocorrelation_FLP( 
           SKP_float                 *corr,              /* O    Result [order + 1]                      */
     const SKP_float                 *input,             /* I    Input data to correlate                 */
     const SKP_float                 warping,            /* I    Warping coefficient                     */
@@ -104,32 +113,32 @@ void SKP_Silk_warped_autocorrelation_FLP(
 );
 
 /* Calculation of LTP state scaling */
-void SKP_Silk_LTP_scale_ctrl_FLP(
-    SKP_Silk_encoder_state_FLP      *psEnc,             /* I/O  Encoder state FLP                       */
-    SKP_Silk_encoder_control_FLP    *psEncCtrl          /* I/O  Encoder control FLP                     */
+void silk_LTP_scale_ctrl_FLP(
+    silk_encoder_state_FLP          *psEnc,             /* I/O  Encoder state FLP                       */
+    silk_encoder_control_FLP        *psEncCtrl          /* I/O  Encoder control FLP                     */
 );
 
 /**********************************************/
 /* Prediction Analysis                        */
 /**********************************************/
 /* Find pitch lags */
-void SKP_Silk_find_pitch_lags_FLP(
-    SKP_Silk_encoder_state_FLP      *psEnc,             /* I/O  Encoder state FLP                       */
-    SKP_Silk_encoder_control_FLP    *psEncCtrl,         /* I/O  Encoder control FLP                     */
+void silk_find_pitch_lags_FLP(
+    silk_encoder_state_FLP          *psEnc,             /* I/O  Encoder state FLP                       */
+    silk_encoder_control_FLP        *psEncCtrl,         /* I/O  Encoder control FLP                     */
           SKP_float                 res[],              /* O    Residual                                */
     const SKP_float                 x[]                 /* I    Speech signal                           */
 );
 
 /* Find LPC and LTP coefficients */
-void SKP_Silk_find_pred_coefs_FLP(
-    SKP_Silk_encoder_state_FLP      *psEnc,             /* I/O  Encoder state FLP                       */
-    SKP_Silk_encoder_control_FLP    *psEncCtrl,         /* I/O  Encoder control FLP                     */
+void silk_find_pred_coefs_FLP(
+    silk_encoder_state_FLP          *psEnc,             /* I/O  Encoder state FLP                       */
+    silk_encoder_control_FLP        *psEncCtrl,         /* I/O  Encoder control FLP                     */
     const SKP_float                 res_pitch[],        /* I    Residual from pitch analysis            */
     const SKP_float                 x[]                 /* I    Speech signal                           */
 );
 
 /* LPC analysis */
-void SKP_Silk_find_LPC_FLP(
+void silk_find_LPC_FLP(
           SKP_int16                 NLSF_Q15[],             /* O    NLSFs                                   */
           SKP_int8                  *interpIndex,           /* O    NLSF interp. index for NLSF interp.     */
     const SKP_int16                 prev_NLSFq_Q15[],       /* I    Previous NLSFs, for NLSF interpolation  */
@@ -142,7 +151,7 @@ void SKP_Silk_find_LPC_FLP(
 );
 
 /* LTP analysis */
-void SKP_Silk_find_LTP_FLP(
+void silk_find_LTP_FLP(
           SKP_float b[ MAX_NB_SUBFR * LTP_ORDER ],          /* O    LTP coefs                               */
           SKP_float WLTP[ MAX_NB_SUBFR * LTP_ORDER * LTP_ORDER ], /* O    Weight for LTP quantization       */
           SKP_float *LTPredCodGain,                         /* O    LTP coding gain                         */
@@ -154,7 +163,7 @@ void SKP_Silk_find_LTP_FLP(
     const SKP_int   mem_offset                              /* I    Number of samples in LTP memory         */
 );
 
-void SKP_Silk_LTP_analysis_filter_FLP(
+void silk_LTP_analysis_filter_FLP(
           SKP_float         *LTP_res,                   /* O    LTP res MAX_NB_SUBFR*(pre_lgth+subfr_lngth) */
     const SKP_float         *x,                         /* I    Input signal, with preceeding samples       */
     const SKP_float         B[ LTP_ORDER * MAX_NB_SUBFR ],  /* I    LTP coefficients for each subframe      */
@@ -167,10 +176,10 @@ void SKP_Silk_LTP_analysis_filter_FLP(
 
 /* Calculates residual energies of input subframes where all subframes have LPC_order   */
 /* of preceeding samples                                                                */
-void SKP_Silk_residual_energy_FLP(  
+void silk_residual_energy_FLP(  
           SKP_float             nrgs[ MAX_NB_SUBFR ],   /* O    Residual energy per subframe            */
     const SKP_float             x[],                    /* I    Input signal                            */
-    const SKP_float             a[ 2 ][ MAX_LPC_ORDER ],/* I    AR coefs for each frame half            */
+          SKP_float             a[ 2 ][ MAX_LPC_ORDER ],/* I    AR coefs for each frame half            */
     const SKP_float             gains[],                /* I    Quantization gains                      */
     const SKP_int               subfr_length,           /* I    Subframe length                         */
     const SKP_int               nb_subfr,               /* I    number of subframes                     */
@@ -178,7 +187,7 @@ void SKP_Silk_residual_energy_FLP(
 );
 
 /* 16th order LPC analysis filter */
-void SKP_Silk_LPC_analysis_filter_FLP(
+void silk_LPC_analysis_filter_FLP(
           SKP_float                 r_LPC[],            /* O    LPC residual signal                     */
     const SKP_float                 PredCoef[],         /* I    LPC coefficients                        */
     const SKP_float                 s[],                /* I    Input signal                            */
@@ -187,7 +196,7 @@ void SKP_Silk_LPC_analysis_filter_FLP(
 );
 
 /* LTP tap quantizer */
-void SKP_Silk_quant_LTP_gains_FLP(
+void silk_quant_LTP_gains_FLP(
           SKP_float B[ MAX_NB_SUBFR * LTP_ORDER ],              /* I/O  (Un-)quantized LTP gains                */
           SKP_int8  cbk_index[ MAX_NB_SUBFR ],                  /* O    Codebook index                          */
           SKP_int8  *periodicity_index,                         /* O    Periodicity index                       */
@@ -201,15 +210,15 @@ void SKP_Silk_quant_LTP_gains_FLP(
 /* NLSF Quantizer */
 /******************/
 /* Limit, stabilize, and quantize NLSFs */
-void SKP_Silk_process_NLSFs_FLP(
-    SKP_Silk_encoder_state          *psEncC,                            /* I/O  Encoder state                               */
+void silk_process_NLSFs_FLP(
+    silk_encoder_state              *psEncC,                            /* I/O  Encoder state                               */
     SKP_float                       PredCoef[ 2 ][ MAX_LPC_ORDER ],     /* O    Prediction coefficients                     */
     SKP_int16                       NLSF_Q15[      MAX_LPC_ORDER ],     /* I/O  Normalized LSFs (quant out) (0 - (2^15-1))  */
     const SKP_int16                 prev_NLSF_Q15[ MAX_LPC_ORDER ]      /* I    Previous Normalized LSFs (0 - (2^15-1))     */
 );
 
 /* Residual energy: nrg = wxx - 2 * wXx * c + c' * wXX * c */
-SKP_float SKP_Silk_residual_energy_covar_FLP(           /* O    Weighted residual energy                */
+SKP_float silk_residual_energy_covar_FLP(           /* O    Weighted residual energy                */
     const SKP_float                 *c,                 /* I    Filter coefficients                     */
           SKP_float                 *wXX,               /* I/O  Weighted correlation matrix, reg. out   */
     const SKP_float                 *wXx,               /* I    Weighted correlation vector             */
@@ -218,7 +227,7 @@ SKP_float SKP_Silk_residual_energy_covar_FLP(           /* O    Weighted residua
 );
 
 /* Entropy constrained MATRIX-weighted VQ, for a single input data vector */
-void SKP_Silk_VQ_WMat_EC_FLP(
+void silk_VQ_WMat_EC_FLP(
           SKP_int                   *ind,               /* O    Index of best codebook vector           */
           SKP_float                 *rate_dist,         /* O    Best weighted quant. error + mu * rate  */
     const SKP_float                 *in,                /* I    Input vector to be quantized            */
@@ -230,16 +239,16 @@ void SKP_Silk_VQ_WMat_EC_FLP(
 );
 
 /* Processing of gains */
-void SKP_Silk_process_gains_FLP(
-    SKP_Silk_encoder_state_FLP      *psEnc,             /* I/O  Encoder state FLP                       */
-    SKP_Silk_encoder_control_FLP    *psEncCtrl          /* I/O  Encoder control FLP                     */
+void silk_process_gains_FLP(
+    silk_encoder_state_FLP          *psEnc,             /* I/O  Encoder state FLP                       */
+    silk_encoder_control_FLP        *psEncCtrl          /* I/O  Encoder control FLP                     */
 );
 
 /******************/
 /* Linear Algebra */
 /******************/
 /* Calculates correlation matrix X'*X */
-void SKP_Silk_corrMatrix_FLP(
+void silk_corrMatrix_FLP(
     const SKP_float                 *x,                 /* I    x vector [ L+order-1 ] used to create X */
     const SKP_int                   L,                  /* I    Length of vectors                       */
     const SKP_int                   Order,              /* I    Max lag for correlation                 */
@@ -247,7 +256,7 @@ void SKP_Silk_corrMatrix_FLP(
 );
 
 /* Calculates correlation vector X'*t */
-void SKP_Silk_corrVector_FLP(
+void silk_corrVector_FLP(
     const SKP_float                 *x,                 /* I    x vector [L+order-1] used to create X   */
     const SKP_float                 *t,                 /* I    Target vector [L]                       */
     const SKP_int                   L,                  /* I    Length of vecors                        */
@@ -256,7 +265,7 @@ void SKP_Silk_corrVector_FLP(
 );
 
 /* Add noise to matrix diagonal */
-void SKP_Silk_regularize_correlations_FLP(
+void silk_regularize_correlations_FLP(
           SKP_float                 *XX,                /* I/O  Correlation matrices                    */
           SKP_float                 *xx,                /* I/O  Correlation values                      */
     const SKP_float                 noise,              /* I    Noise energy to add                     */
@@ -264,7 +273,7 @@ void SKP_Silk_regularize_correlations_FLP(
 );
 
 /* Function to solve linear equation Ax = b, where A is an MxM symmetric matrix */
-void SKP_Silk_solve_LDL_FLP(
+void silk_solve_LDL_FLP(
           SKP_float                 *A,                 /* I/O  Symmetric square matrix, out: reg.      */
     const SKP_int                   M,                  /* I    Size of matrix                          */
     const SKP_float                 *b,                 /* I    Pointer to b vector                     */
@@ -275,7 +284,7 @@ void SKP_Silk_solve_LDL_FLP(
 /* Window types:                                                                                        */
 /*  1 -> sine window from 0 to pi/2                                                                     */
 /*  2 -> sine window from pi/2 to pi                                                                    */
-void SKP_Silk_apply_sine_window_FLP(
+void silk_apply_sine_window_FLP(
           SKP_float                 px_win[],           /* O    Pointer to windowed signal              */
     const SKP_float                 px[],               /* I    Pointer to input signal                 */
     const SKP_int                   win_type,           /* I    Selects a window type                   */
@@ -285,14 +294,14 @@ void SKP_Silk_apply_sine_window_FLP(
 /* Wrappers. Calls flp / fix code */
 
 /* Convert AR filter coefficients to NLSF parameters */
-void SKP_Silk_A2NLSF_FLP( 
+void silk_A2NLSF_FLP( 
           SKP_int16                 *NLSF_Q15,          /* O    NLSF vector      [ LPC_order ]          */
     const SKP_float                 *pAR,               /* I    LPC coefficients [ LPC_order ]          */
     const SKP_int                   LPC_order           /* I    LPC order                               */
 );
 
 /* Convert NLSF parameters to AR prediction filter coefficients */
-void SKP_Silk_NLSF2A_stable_FLP( 
+void silk_NLSF2A_stable_FLP( 
           SKP_float                 *pAR,               /* O    LPC coefficients [ LPC_order ]          */
     const SKP_int16                 *NLSF_Q15,          /* I    NLSF vector      [ LPC_order ]          */
     const SKP_int                   LPC_order           /* I    LPC order                               */
@@ -301,18 +310,15 @@ void SKP_Silk_NLSF2A_stable_FLP(
 /****************************************/
 /* Floating-point Silk NSQ wrapper      */
 /****************************************/
-void SKP_Silk_NSQ_wrapper_FLP(
-    SKP_Silk_encoder_state_FLP      *psEnc,         /* I/O  Encoder state FLP                           */
-    SKP_Silk_encoder_control_FLP    *psEncCtrl,     /* I/O  Encoder control FLP                         */
+void silk_NSQ_wrapper_FLP(
+    silk_encoder_state_FLP          *psEnc,         /* I/O  Encoder state FLP                           */
+    silk_encoder_control_FLP        *psEncCtrl,     /* I/O  Encoder control FLP                         */
     SideInfoIndices                 *psIndices,     /* I/O  Quantization indices                        */
-    SKP_Silk_nsq_state              *psNSQ,         /* I/O  Noise Shaping Quantzation state             */
+    silk_nsq_state                  *psNSQ,         /* I/O  Noise Shaping Quantzation state             */
           SKP_int8                  pulses[],       /* O    Quantized pulse signal                      */
     const SKP_float                 x[]             /* I    Prefiltered input signal                    */
 );
 
-/* using log2() helps the fixed-point conversion */
-SKP_INLINE SKP_float SKP_Silk_log2( double x ) { return ( SKP_float )( 3.32192809488736 * log10( x ) ); }
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/silk/float/SKP_Silk_noise_shape_analysis_FLP.c b/silk/float/silk_noise_shape_analysis_FLP.c
similarity index 89%
rename from silk/float/SKP_Silk_noise_shape_analysis_FLP.c
rename to silk/float/silk_noise_shape_analysis_FLP.c
index 05f98fa8..4ff41c66 100644
--- a/silk/float/SKP_Silk_noise_shape_analysis_FLP.c
+++ b/silk/float/silk_noise_shape_analysis_FLP.c
@@ -25,8 +25,8 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FLP.h"
-#include "SKP_Silk_tuning_parameters.h"
+#include "silk_main_FLP.h"
+#include "silk_tuning_parameters.h"
 
 /* Compute gain to make warped filter coefficients have a zero mean log frequency response on a     */
 /* non-warped frequency scale. (So that it can be implemented with a minimum-phase monic filter.)   */
@@ -100,8 +100,8 @@ SKP_INLINE void warped_true2monic_coefs(
 
         /* Apply bandwidth expansion */
         chirp = 0.99f - ( 0.8f + 0.1f * iter ) * ( maxabs - limit ) / ( maxabs * ( ind + 1 ) );
-        SKP_Silk_bwexpander_FLP( coefs_syn, order, chirp );
-        SKP_Silk_bwexpander_FLP( coefs_ana, order, chirp );
+        silk_bwexpander_FLP( coefs_syn, order, chirp );
+        silk_bwexpander_FLP( coefs_ana, order, chirp );
 
         /* Convert to monic warped coefficients */
         for( i = order - 1; i > 0; i-- ) {
@@ -119,14 +119,14 @@ SKP_INLINE void warped_true2monic_coefs(
 }
 
 /* Compute noise shaping coefficients and initial gain values */
-void SKP_Silk_noise_shape_analysis_FLP(
-    SKP_Silk_encoder_state_FLP      *psEnc,             /* I/O  Encoder state FLP                       */
-    SKP_Silk_encoder_control_FLP    *psEncCtrl,         /* I/O  Encoder control FLP                     */
+void silk_noise_shape_analysis_FLP(
+    silk_encoder_state_FLP          *psEnc,             /* I/O  Encoder state FLP                       */
+    silk_encoder_control_FLP        *psEncCtrl,         /* I/O  Encoder control FLP                     */
     const SKP_float                 *pitch_res,         /* I    LPC residual from pitch analysis        */
     const SKP_float                 *x                  /* I    Input signal [frame_length + la_shape]  */
 )
 {
-    SKP_Silk_shape_state_FLP *psShapeSt = &psEnc->sShape;
+    silk_shape_state_FLP *psShapeSt = &psEnc->sShape;
     SKP_int     k, nSamples;
     SKP_float   SNR_adj_dB, HarmBoost, HarmShapeGain, Tilt;
     SKP_float   nrg, pre_nrg, log_energy, log_energy_prev, energy_variation;
@@ -178,8 +178,8 @@ void SKP_Silk_noise_shape_analysis_FLP(
         log_energy_prev  = 0.0f;
         pitch_res_ptr = pitch_res;
         for( k = 0; k < SKP_SMULBB( SUB_FRAME_LENGTH_MS, psEnc->sCmn.nb_subfr ) / 2; k++ ) {
-            nrg = ( SKP_float )nSamples + ( SKP_float )SKP_Silk_energy_FLP( pitch_res_ptr, nSamples );
-            log_energy = SKP_Silk_log2( nrg );
+            nrg = ( SKP_float )nSamples + ( SKP_float )silk_energy_FLP( pitch_res_ptr, nSamples );
+            log_energy = silk_log2( nrg );
             if( k > 0 ) {
                 energy_variation += SKP_abs_float( log_energy - log_energy_prev );
             }
@@ -227,29 +227,29 @@ void SKP_Silk_noise_shape_analysis_FLP(
         flat_part = psEnc->sCmn.fs_kHz * 3;
         slope_part = ( psEnc->sCmn.shapeWinLength - flat_part ) / 2;
 
-        SKP_Silk_apply_sine_window_FLP( x_windowed, x_ptr, 1, slope_part );
+        silk_apply_sine_window_FLP( x_windowed, x_ptr, 1, slope_part );
         shift = slope_part;
         SKP_memcpy( x_windowed + shift, x_ptr + shift, flat_part * sizeof(SKP_float) );
         shift += flat_part;
-        SKP_Silk_apply_sine_window_FLP( x_windowed + shift, x_ptr + shift, 2, slope_part );
+        silk_apply_sine_window_FLP( x_windowed + shift, x_ptr + shift, 2, slope_part );
 
         /* Update pointer: next LPC analysis block */
         x_ptr += psEnc->sCmn.subfr_length;
 
         if( psEnc->sCmn.warping_Q16 > 0 ) {
             /* Calculate warped auto correlation */
-            SKP_Silk_warped_autocorrelation_FLP( auto_corr, x_windowed, warping, 
+            silk_warped_autocorrelation_FLP( auto_corr, x_windowed, warping, 
                 psEnc->sCmn.shapeWinLength, psEnc->sCmn.shapingLPCOrder );
         } else {
             /* Calculate regular auto correlation */
-            SKP_Silk_autocorrelation_FLP( auto_corr, x_windowed, psEnc->sCmn.shapeWinLength, psEnc->sCmn.shapingLPCOrder + 1 );
+            silk_autocorrelation_FLP( auto_corr, x_windowed, psEnc->sCmn.shapeWinLength, psEnc->sCmn.shapingLPCOrder + 1 );
         }
 
         /* Add white noise, as a fraction of energy */
         auto_corr[ 0 ] += auto_corr[ 0 ] * SHAPE_WHITE_NOISE_FRACTION; 
 
         /* Convert correlations to prediction coefficients, and compute residual energy */
-        nrg = SKP_Silk_levinsondurbin_FLP( &psEncCtrl->AR2[ k * MAX_SHAPE_LPC_ORDER ], auto_corr, psEnc->sCmn.shapingLPCOrder );
+        nrg = silk_levinsondurbin_FLP( &psEncCtrl->AR2[ k * MAX_SHAPE_LPC_ORDER ], auto_corr, psEnc->sCmn.shapingLPCOrder );
         psEncCtrl->Gains[ k ] = ( SKP_float )sqrt( nrg );
 
         if( psEnc->sCmn.warping_Q16 > 0 ) {
@@ -258,7 +258,7 @@ void SKP_Silk_noise_shape_analysis_FLP(
         }
 
         /* Bandwidth expansion for synthesis filter shaping */
-        SKP_Silk_bwexpander_FLP( &psEncCtrl->AR2[ k * MAX_SHAPE_LPC_ORDER ], psEnc->sCmn.shapingLPCOrder, BWExp2 );
+        silk_bwexpander_FLP( &psEncCtrl->AR2[ k * MAX_SHAPE_LPC_ORDER ], psEnc->sCmn.shapingLPCOrder, BWExp2 );
 
         /* Compute noise shaping filter coefficients */
         SKP_memcpy(
@@ -267,11 +267,11 @@ void SKP_Silk_noise_shape_analysis_FLP(
             psEnc->sCmn.shapingLPCOrder * sizeof( SKP_float ) );
 
         /* Bandwidth expansion for analysis filter shaping */
-        SKP_Silk_bwexpander_FLP( &psEncCtrl->AR1[ k * MAX_SHAPE_LPC_ORDER ], psEnc->sCmn.shapingLPCOrder, BWExp1 );
+        silk_bwexpander_FLP( &psEncCtrl->AR1[ k * MAX_SHAPE_LPC_ORDER ], psEnc->sCmn.shapingLPCOrder, BWExp1 );
 
         /* Ratio of prediction gains, in energy domain */
-        SKP_Silk_LPC_inverse_pred_gain_FLP( &pre_nrg, &psEncCtrl->AR2[ k * MAX_SHAPE_LPC_ORDER ], psEnc->sCmn.shapingLPCOrder );
-        SKP_Silk_LPC_inverse_pred_gain_FLP( &nrg,     &psEncCtrl->AR1[ k * MAX_SHAPE_LPC_ORDER ], psEnc->sCmn.shapingLPCOrder );
+        silk_LPC_inverse_pred_gain_FLP( &pre_nrg, &psEncCtrl->AR2[ k * MAX_SHAPE_LPC_ORDER ], psEnc->sCmn.shapingLPCOrder );
+        silk_LPC_inverse_pred_gain_FLP( &nrg,     &psEncCtrl->AR1[ k * MAX_SHAPE_LPC_ORDER ], psEnc->sCmn.shapingLPCOrder );
         psEncCtrl->GainsPre[ k ] = 1.0f - 0.7f * ( 1.0f - pre_nrg / nrg );
 
         /* Convert to monic warped prediction coefficients and limit absolute values */
diff --git a/silk/float/SKP_Silk_pitch_analysis_core_FLP.c b/silk/float/silk_pitch_analysis_core_FLP.c
similarity index 87%
rename from silk/float/SKP_Silk_pitch_analysis_core_FLP.c
rename to silk/float/silk_pitch_analysis_core_FLP.c
index 244754c3..abcdfe27 100644
--- a/silk/float/SKP_Silk_pitch_analysis_core_FLP.c
+++ b/silk/float/silk_pitch_analysis_core_FLP.c
@@ -30,9 +30,9 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * Pitch analyser function
 *
 ******************************************************************************/
-#include "SKP_Silk_SigProc_FLP.h"
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_pitch_est_defines.h"
+#include "silk_SigProc_FLP.h"
+#include "silk_SigProc_FIX.h"
+#include "silk_pitch_est_defines.h"
 
 #define SCRATCH_SIZE    22
 
@@ -41,13 +41,10 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /************************************************************/
 #define eps                     1.192092896e-07f
 
-/* using log2() helps the fixed-point conversion */
-SKP_INLINE SKP_float SKP_P_log2(double x) { return (SKP_float)(3.32192809488736 * log10(x)); }
-
 /************************************************************/
 /* Internally used functions                                */
 /************************************************************/
-static void SKP_P_Ana_calc_corr_st3(
+static void silk_P_Ana_calc_corr_st3(
     SKP_float cross_corr_st3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ][ PE_NB_STAGE3_LAGS ], /* O 3 DIM correlation array */
     const SKP_float signal[],           /* I vector to correlate                                            */
     SKP_int         start_lag,          /* I start lag                                                      */
@@ -56,7 +53,7 @@ static void SKP_P_Ana_calc_corr_st3(
     SKP_int         complexity          /* I Complexity setting                                             */
 );
 
-static void SKP_P_Ana_calc_energy_st3(
+static void silk_P_Ana_calc_energy_st3(
     SKP_float energies_st3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ][ PE_NB_STAGE3_LAGS ], /* O 3 DIM correlation array */
     const SKP_float signal[],           /* I vector to correlate                                            */
     SKP_int         start_lag,          /* I start lag                                                      */
@@ -68,7 +65,7 @@ static void SKP_P_Ana_calc_energy_st3(
 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 //%             CORE PITCH ANALYSIS FUNCTION                %
 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-SKP_int SKP_Silk_pitch_analysis_core_FLP( /* O voicing estimate: 0 voiced, 1 unvoiced                       */
+SKP_int silk_pitch_analysis_core_FLP( /* O voicing estimate: 0 voiced, 1 unvoiced                       */
     const SKP_float *signal,            /* I signal of length PE_FRAME_LENGTH_MS*Fs_kHz                     */
     SKP_int         *pitch_out,         /* O 4 pitch lag values                                             */
     SKP_int16        *lagIndex,         /* O lag Index                                                      */
@@ -142,14 +139,14 @@ SKP_int SKP_Silk_pitch_analysis_core_FLP( /* O voicing estimate: 0 voiced, 1 unv
         SKP_int16 signal_16_FIX[ 16 * PE_MAX_FRAME_LENGTH_MS ];
         SKP_float2short_array( signal_16_FIX, signal, frame_length );
         SKP_memset( filt_state, 0, 2 * sizeof( SKP_int32 ) );
-        SKP_Silk_resampler_down2( filt_state, signal_8_FIX, signal_16_FIX, frame_length );
+        silk_resampler_down2( filt_state, signal_8_FIX, signal_16_FIX, frame_length );
         SKP_short2float_array( signal_8kHz, signal_8_FIX, frame_length_8kHz );
     } else if( Fs_kHz == 12 ) {
         /* Resample to 12 -> 8 khz */
         SKP_int16 signal_12_FIX[ 12 * PE_MAX_FRAME_LENGTH_MS ];
         SKP_float2short_array( signal_12_FIX, signal, frame_length );
         SKP_memset( filt_state, 0, 6 * sizeof( SKP_int32 ) );
-        SKP_Silk_resampler_down2_3( filt_state, signal_8_FIX, signal_12_FIX, frame_length );
+        silk_resampler_down2_3( filt_state, signal_8_FIX, signal_12_FIX, frame_length );
         SKP_short2float_array( signal_8kHz, signal_8_FIX, frame_length_8kHz );
     } else {
         SKP_assert( Fs_kHz == 8 );
@@ -158,7 +155,7 @@ SKP_int SKP_Silk_pitch_analysis_core_FLP( /* O voicing estimate: 0 voiced, 1 unv
 
     /* Decimate again to 4 kHz */
     SKP_memset( filt_state, 0, 2 * sizeof( SKP_int32 ) );
-    SKP_Silk_resampler_down2( filt_state, signal_4_FIX, signal_8_FIX, frame_length_8kHz );
+    silk_resampler_down2( filt_state, signal_4_FIX, signal_8_FIX, frame_length_8kHz );
     SKP_short2float_array( signal_4kHz, signal_4_FIX, frame_length_4kHz );
 
     /* Low-pass filter */
@@ -182,8 +179,8 @@ SKP_int SKP_Silk_pitch_analysis_core_FLP( /* O voicing estimate: 0 voiced, 1 unv
         SKP_assert( basis_ptr + sf_length_8kHz <= signal_4kHz + frame_length_4kHz );
 
         /* Calculate first vector products before loop */
-        cross_corr = SKP_Silk_inner_product_FLP( target_ptr, basis_ptr, sf_length_8kHz );
-        normalizer = SKP_Silk_energy_FLP( basis_ptr, sf_length_8kHz ) + sf_length_8kHz * 4000.0f;
+        cross_corr = silk_inner_product_FLP( target_ptr, basis_ptr, sf_length_8kHz );
+        normalizer = silk_energy_FLP( basis_ptr, sf_length_8kHz ) + sf_length_8kHz * 4000.0f;
 
         C[ 0 ][ min_lag_4kHz ] += (SKP_float)(cross_corr / sqrt(normalizer));
 
@@ -195,7 +192,7 @@ SKP_int SKP_Silk_pitch_analysis_core_FLP( /* O voicing estimate: 0 voiced, 1 unv
             SKP_assert( basis_ptr >= signal_4kHz );
             SKP_assert( basis_ptr + sf_length_8kHz <= signal_4kHz + frame_length_4kHz );
 
-            cross_corr = SKP_Silk_inner_product_FLP(target_ptr, basis_ptr, sf_length_8kHz);
+            cross_corr = silk_inner_product_FLP(target_ptr, basis_ptr, sf_length_8kHz);
 
             /* Add contribution of new sample and remove contribution from oldest sample */
             normalizer +=
@@ -215,7 +212,7 @@ SKP_int SKP_Silk_pitch_analysis_core_FLP( /* O voicing estimate: 0 voiced, 1 unv
     /* Sort */
     length_d_srch = 4 + 2 * complexity;
     SKP_assert( 3 * length_d_srch <= PE_D_SRCH_LENGTH );
-    SKP_Silk_insertion_sort_decreasing_FLP( &C[ 0 ][ min_lag_4kHz ], d_srch, max_lag_4kHz - min_lag_4kHz + 1, length_d_srch );
+    silk_insertion_sort_decreasing_FLP( &C[ 0 ][ min_lag_4kHz ], d_srch, max_lag_4kHz - min_lag_4kHz + 1, length_d_srch );
 
     /* Escape if correlation is very low already here */
     Cmax = C[ 0 ][ min_lag_4kHz ];
@@ -273,7 +270,7 @@ SKP_int SKP_Silk_pitch_analysis_core_FLP( /* O voicing estimate: 0 voiced, 1 unv
     length_d_comp = 0;
     for( i = min_lag_8kHz; i < max_lag_8kHz + 4; i++ ) {    
         if( d_comp[ i ] > 0 ) {
-            d_comp[ length_d_comp ] = i - 2;
+            d_comp[ length_d_comp ] = (SKP_int16)( i - 2 );
             length_d_comp++;
         }
     }
@@ -292,12 +289,12 @@ SKP_int SKP_Silk_pitch_analysis_core_FLP( /* O voicing estimate: 0 voiced, 1 unv
         target_ptr = &signal_8kHz[ PE_LTP_MEM_LENGTH_MS * 8 ];
     }
     for( k = 0; k < nb_subfr; k++ ) {
-        energy_tmp = SKP_Silk_energy_FLP( target_ptr, sf_length_8kHz );
+        energy_tmp = silk_energy_FLP( target_ptr, sf_length_8kHz );
         for( j = 0; j < length_d_comp; j++ ) {
             d = d_comp[ j ];
             basis_ptr = target_ptr - d;
-            cross_corr = SKP_Silk_inner_product_FLP( basis_ptr, target_ptr, sf_length_8kHz );
-            energy     = SKP_Silk_energy_FLP( basis_ptr, sf_length_8kHz );
+            cross_corr = silk_inner_product_FLP( basis_ptr, target_ptr, sf_length_8kHz );
+            energy     = silk_energy_FLP( basis_ptr, sf_length_8kHz );
             if (cross_corr > 0.0f) {
                 C[ k ][ d ] = (SKP_float)(cross_corr * cross_corr / (energy * energy_tmp + eps));
             } else {
@@ -322,7 +319,7 @@ SKP_int SKP_Silk_pitch_analysis_core_FLP( /* O voicing estimate: 0 voiced, 1 unv
         } else if( Fs_kHz == 16 ) {
             prevLag = SKP_RSHIFT( prevLag, 1 );
         }
-        prevLag_log2 = SKP_P_log2((SKP_float)prevLag);
+        prevLag_log2 = silk_log2((SKP_float)prevLag);
     } else {
         prevLag_log2 = 0;
     }
@@ -330,7 +327,7 @@ SKP_int SKP_Silk_pitch_analysis_core_FLP( /* O voicing estimate: 0 voiced, 1 unv
     /* Setup stage 2 codebook based on number of subframes */
     if( nb_subfr == PE_MAX_NB_SUBFR ) {
         cbk_size   = PE_NB_CBKS_STAGE2_EXT;
-        Lag_CB_ptr = &SKP_Silk_CB_lags_stage2[ 0 ][ 0 ];
+        Lag_CB_ptr = &silk_CB_lags_stage2[ 0 ][ 0 ];
         if( Fs_kHz == 8 && complexity > SigProc_PE_MIN_COMPLEX ) {
             /* If input is 8 khz use a larger codebook here because it is last stage */
             nb_cbk_search = PE_NB_CBKS_STAGE2_EXT;
@@ -339,7 +336,7 @@ SKP_int SKP_Silk_pitch_analysis_core_FLP( /* O voicing estimate: 0 voiced, 1 unv
         }
     } else {
         cbk_size       = PE_NB_CBKS_STAGE2_10MS;
-        Lag_CB_ptr     = &SKP_Silk_CB_lags_stage2_10_ms[ 0 ][ 0 ];
+        Lag_CB_ptr     = &silk_CB_lags_stage2_10_ms[ 0 ][ 0 ];
         nb_cbk_search  = PE_NB_CBKS_STAGE2_10MS;
     }
 
@@ -365,7 +362,7 @@ SKP_int SKP_Silk_pitch_analysis_core_FLP( /* O voicing estimate: 0 voiced, 1 unv
         CCmax_new_b = CCmax_new;
 
         /* Bias towards shorter lags */
-        lag_log2 = SKP_P_log2((SKP_float)d);
+        lag_log2 = silk_log2((SKP_float)d);
         CCmax_new_b -= PE_SHORTLAG_BIAS * nb_subfr * lag_log2;
 
         /* Bias towards previous lag */
@@ -377,7 +374,7 @@ SKP_int SKP_Silk_pitch_analysis_core_FLP( /* O voicing estimate: 0 voiced, 1 unv
 
         if ( CCmax_new_b > CCmax_b                                      && /* Find maximum biased correlation                  */
              CCmax_new > nb_subfr * search_thres2 * search_thres2       && /* Correlation needs to be high enough to be voiced */
-             SKP_Silk_CB_lags_stage2[ 0 ][ CBimax_new ] <= min_lag_8kHz    /* Lag must be in range                             */
+             silk_CB_lags_stage2[ 0 ][ CBimax_new ] <= min_lag_8kHz    /* Lag must be in range                             */
             ) {
             CCmax_b = CCmax_new_b;
             CCmax   = CCmax_new;
@@ -419,8 +416,8 @@ SKP_int SKP_Silk_pitch_analysis_core_FLP( /* O voicing estimate: 0 voiced, 1 unv
         CCmax = -1000.0f;
 
         /* Calculate the correlations and energies needed in stage 3 */
-        SKP_P_Ana_calc_corr_st3( cross_corr_st3, signal, start_lag, sf_length, nb_subfr, complexity );
-        SKP_P_Ana_calc_energy_st3( energies_st3, signal, start_lag, sf_length, nb_subfr, complexity );
+        silk_P_Ana_calc_corr_st3( cross_corr_st3, signal, start_lag, sf_length, nb_subfr, complexity );
+        silk_P_Ana_calc_energy_st3( energies_st3, signal, start_lag, sf_length, nb_subfr, complexity );
 
         lag_counter = 0;
         SKP_assert( lag == SKP_SAT16( lag ) );
@@ -428,13 +425,13 @@ SKP_int SKP_Silk_pitch_analysis_core_FLP( /* O voicing estimate: 0 voiced, 1 unv
 
         /* Setup cbk parameters acording to complexity setting and frame length */
         if( nb_subfr == PE_MAX_NB_SUBFR ) {
-            nb_cbk_search = (SKP_int)SKP_Silk_nb_cbk_searchs_stage3[ complexity ];
+            nb_cbk_search = (SKP_int)silk_nb_cbk_searchs_stage3[ complexity ];
             cbk_size      = PE_NB_CBKS_STAGE3_MAX;
-            Lag_CB_ptr    = &SKP_Silk_CB_lags_stage3[ 0 ][ 0 ];
+            Lag_CB_ptr    = &silk_CB_lags_stage3[ 0 ][ 0 ];
         } else {
             nb_cbk_search = PE_NB_CBKS_STAGE3_10MS;
             cbk_size      = PE_NB_CBKS_STAGE3_10MS;
-            Lag_CB_ptr    = &SKP_Silk_CB_lags_stage3_10_ms[ 0 ][ 0 ];
+            Lag_CB_ptr    = &silk_CB_lags_stage3_10_ms[ 0 ][ 0 ];
         }
 
         for( d = start_lag; d <= end_lag; d++ ) {
@@ -454,7 +451,7 @@ SKP_int SKP_Silk_pitch_analysis_core_FLP( /* O voicing estimate: 0 voiced, 1 unv
                 }
 
                 if( CCmax_new > CCmax &&
-                   ( d + (SKP_int)SKP_Silk_CB_lags_stage3[ 0 ][ j ] ) <= max_lag  
+                   ( d + (SKP_int)silk_CB_lags_stage3[ 0 ][ j ] ) <= max_lag  
                    ) {
                     CCmax   = CCmax_new;
                     lag_new = d;
@@ -484,7 +481,7 @@ SKP_int SKP_Silk_pitch_analysis_core_FLP( /* O voicing estimate: 0 voiced, 1 unv
     return 0;
 }
 
-static void SKP_P_Ana_calc_corr_st3(
+static void silk_P_Ana_calc_corr_st3(
     SKP_float cross_corr_st3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ][ PE_NB_STAGE3_LAGS ], /* O 3 DIM correlation array */
     const SKP_float signal[],           /* I vector to correlate                                            */
     SKP_int         start_lag,          /* I start lag                                                      */
@@ -516,14 +513,14 @@ static void SKP_P_Ana_calc_corr_st3(
     SKP_assert( complexity <= SigProc_PE_MAX_COMPLEX );
 
     if( nb_subfr == PE_MAX_NB_SUBFR ){
-        Lag_range_ptr = &SKP_Silk_Lag_range_stage3[ complexity ][ 0 ][ 0 ];
-        Lag_CB_ptr    = &SKP_Silk_CB_lags_stage3[ 0 ][ 0 ];
-        nb_cbk_search = SKP_Silk_nb_cbk_searchs_stage3[ complexity ];
+        Lag_range_ptr = &silk_Lag_range_stage3[ complexity ][ 0 ][ 0 ];
+        Lag_CB_ptr    = &silk_CB_lags_stage3[ 0 ][ 0 ];
+        nb_cbk_search = silk_nb_cbk_searchs_stage3[ complexity ];
         cbk_size      = PE_NB_CBKS_STAGE3_MAX;
     } else {
         SKP_assert( nb_subfr == PE_MAX_NB_SUBFR >> 1);
-        Lag_range_ptr = &SKP_Silk_Lag_range_stage3_10_ms[ 0 ][ 0 ];
-        Lag_CB_ptr    = &SKP_Silk_CB_lags_stage3_10_ms[ 0 ][ 0 ];
+        Lag_range_ptr = &silk_Lag_range_stage3_10_ms[ 0 ][ 0 ];
+        Lag_CB_ptr    = &silk_CB_lags_stage3_10_ms[ 0 ][ 0 ];
         nb_cbk_search = PE_NB_CBKS_STAGE3_10MS;
         cbk_size      = PE_NB_CBKS_STAGE3_10MS;
     }
@@ -538,7 +535,7 @@ static void SKP_P_Ana_calc_corr_st3(
         for( j = lag_low; j <= lag_high; j++ ) {
             basis_ptr = target_ptr - ( start_lag + j );
             SKP_assert( lag_counter < SCRATCH_SIZE );
-            scratch_mem[ lag_counter ] = (SKP_float)SKP_Silk_inner_product_FLP( target_ptr, basis_ptr, sf_length );
+            scratch_mem[ lag_counter ] = (SKP_float)silk_inner_product_FLP( target_ptr, basis_ptr, sf_length );
             lag_counter++;
         }
 
@@ -557,7 +554,7 @@ static void SKP_P_Ana_calc_corr_st3(
     }
 }
 
-static void SKP_P_Ana_calc_energy_st3(
+static void silk_P_Ana_calc_energy_st3(
     SKP_float energies_st3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ][ PE_NB_STAGE3_LAGS ], /* O 3 DIM correlation array */
     const SKP_float signal[],           /* I vector to correlate                                            */
     SKP_int         start_lag,          /* I start lag                                                      */
@@ -581,14 +578,14 @@ calculated recursively.
     SKP_assert( complexity <= SigProc_PE_MAX_COMPLEX );
 
     if( nb_subfr == PE_MAX_NB_SUBFR ){
-        Lag_range_ptr = &SKP_Silk_Lag_range_stage3[ complexity ][ 0 ][ 0 ];
-        Lag_CB_ptr    = &SKP_Silk_CB_lags_stage3[ 0 ][ 0 ];
-        nb_cbk_search = SKP_Silk_nb_cbk_searchs_stage3[ complexity ];
+        Lag_range_ptr = &silk_Lag_range_stage3[ complexity ][ 0 ][ 0 ];
+        Lag_CB_ptr    = &silk_CB_lags_stage3[ 0 ][ 0 ];
+        nb_cbk_search = silk_nb_cbk_searchs_stage3[ complexity ];
         cbk_size      = PE_NB_CBKS_STAGE3_MAX;
     } else {
         SKP_assert( nb_subfr == PE_MAX_NB_SUBFR >> 1);
-        Lag_range_ptr = &SKP_Silk_Lag_range_stage3_10_ms[ 0 ][ 0 ];
-        Lag_CB_ptr    = &SKP_Silk_CB_lags_stage3_10_ms[ 0 ][ 0 ];
+        Lag_range_ptr = &silk_Lag_range_stage3_10_ms[ 0 ][ 0 ];
+        Lag_CB_ptr    = &silk_CB_lags_stage3_10_ms[ 0 ][ 0 ];
         nb_cbk_search = PE_NB_CBKS_STAGE3_10MS;
         cbk_size      = PE_NB_CBKS_STAGE3_10MS;
     }
@@ -599,7 +596,7 @@ calculated recursively.
 
         /* Calculate the energy for first lag */
         basis_ptr = target_ptr - ( start_lag + matrix_ptr( Lag_range_ptr, k, 0, 2 ) );
-        energy = SKP_Silk_energy_FLP( basis_ptr, sf_length ) + 1e-3;
+        energy = silk_energy_FLP( basis_ptr, sf_length ) + 1e-3;
         SKP_assert( energy >= 0.0 );
         scratch_mem[lag_counter] = (SKP_float)energy;
         lag_counter++;
diff --git a/silk/float/SKP_Silk_prefilter_FLP.c b/silk/float/silk_prefilter_FLP.c
similarity index 87%
rename from silk/float/SKP_Silk_prefilter_FLP.c
rename to silk/float/silk_prefilter_FLP.c
index c3a23d15..3a61c717 100644
--- a/silk/float/SKP_Silk_prefilter_FLP.c
+++ b/silk/float/silk_prefilter_FLP.c
@@ -25,14 +25,14 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FLP.h"
-#include "SKP_Silk_tuning_parameters.h"
+#include "silk_main_FLP.h"
+#include "silk_tuning_parameters.h"
 
 /*
-* SKP_Silk_prefilter. Prefilter for finding Quantizer input signal  
+* silk_prefilter. Prefilter for finding Quantizer input signal  
 */
-SKP_INLINE void SKP_Silk_prefilt_FLP(
-    SKP_Silk_prefilter_state_FLP *P,/* I/O state */
+SKP_INLINE void silk_prefilt_FLP(
+    silk_prefilter_state_FLP *P,/* I/O state */
     SKP_float st_res[],             /* I */
     SKP_float xw[],                 /* O */
     SKP_float *HarmShapeFIR,        /* I */
@@ -43,7 +43,7 @@ SKP_INLINE void SKP_Silk_prefilt_FLP(
     SKP_int   length                /* I */
 );
 
-void SKP_Silk_warped_LPC_analysis_filter_FLP(
+void silk_warped_LPC_analysis_filter_FLP(
           SKP_float                 state[],            /* I/O  State [order + 1]                       */
           SKP_float                 res[],              /* O    Residual signal [length]                */
     const SKP_float                 coef[],             /* I    Coefficients [order]                    */
@@ -85,16 +85,16 @@ void SKP_Silk_warped_LPC_analysis_filter_FLP(
 }
 
 /*
-* SKP_Silk_prefilter. Main prefilter function   
+* silk_prefilter. Main prefilter function   
 */
-void SKP_Silk_prefilter_FLP(
-    SKP_Silk_encoder_state_FLP          *psEnc,         /* I/O  Encoder state FLP                       */
-    const SKP_Silk_encoder_control_FLP  *psEncCtrl,     /* I    Encoder control FLP                     */
+void silk_prefilter_FLP(
+    silk_encoder_state_FLP          *psEnc,         /* I/O  Encoder state FLP                       */
+    const silk_encoder_control_FLP  *psEncCtrl,     /* I    Encoder control FLP                     */
           SKP_float                     xw[],           /* O    Weighted signal                         */
     const SKP_float                     x[]             /* I    Speech signal                           */
 )
 {
-    SKP_Silk_prefilter_state_FLP *P = &psEnc->sPrefilt;
+    silk_prefilter_state_FLP *P = &psEnc->sPrefilt;
     SKP_int   j, k, lag;
     SKP_float HarmShapeGain, Tilt, LF_MA_shp, LF_AR_shp;
     SKP_float B[ 2 ];
@@ -125,7 +125,7 @@ void SKP_Silk_prefilter_FLP(
         AR1_shp   = &psEncCtrl->AR1[ k * MAX_SHAPE_LPC_ORDER ];
 
         /* Short term FIR filtering */
-        SKP_Silk_warped_LPC_analysis_filter_FLP( P->sAR_shp, st_res, AR1_shp, px, 
+        silk_warped_LPC_analysis_filter_FLP( P->sAR_shp, st_res, AR1_shp, px, 
             (SKP_float)psEnc->sCmn.warping_Q16 / 65536.0f, psEnc->sCmn.subfr_length, psEnc->sCmn.shapingLPCOrder );
 
         /* Reduce (mainly) low frequencies during harmonic emphasis */
@@ -138,7 +138,7 @@ void SKP_Silk_prefilter_FLP(
         }
         P->sHarmHP = st_res[ psEnc->sCmn.subfr_length - 1 ];
 
-        SKP_Silk_prefilt_FLP( P, pxw, pxw, HarmShapeFIR, Tilt, LF_MA_shp, LF_AR_shp, lag, psEnc->sCmn.subfr_length );
+        silk_prefilt_FLP( P, pxw, pxw, HarmShapeFIR, Tilt, LF_MA_shp, LF_AR_shp, lag, psEnc->sCmn.subfr_length );
 
         px  += psEnc->sCmn.subfr_length;
         pxw += psEnc->sCmn.subfr_length;
@@ -149,8 +149,8 @@ void SKP_Silk_prefilter_FLP(
 /*
 * Prefilter for finding Quantizer input signal    
 */
-SKP_INLINE void SKP_Silk_prefilt_FLP(
-    SKP_Silk_prefilter_state_FLP *P,/* I/O state */
+SKP_INLINE void silk_prefilt_FLP(
+    silk_prefilter_state_FLP *P,/* I/O state */
     SKP_float st_res[],				/* I */
     SKP_float xw[],					/* O */
     SKP_float *HarmShapeFIR,		/* I */
diff --git a/silk/float/SKP_Silk_process_gains_FLP.c b/silk/float/silk_process_gains_FLP.c
similarity index 84%
rename from silk/float/SKP_Silk_process_gains_FLP.c
rename to silk/float/silk_process_gains_FLP.c
index 4f0a2089..8f517dfa 100644
--- a/silk/float/SKP_Silk_process_gains_FLP.c
+++ b/silk/float/silk_process_gains_FLP.c
@@ -25,16 +25,16 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FLP.h"
-#include "SKP_Silk_tuning_parameters.h"
+#include "silk_main_FLP.h"
+#include "silk_tuning_parameters.h"
 
 /* Processing of gains */
-void SKP_Silk_process_gains_FLP(
-    SKP_Silk_encoder_state_FLP      *psEnc,             /* I/O  Encoder state FLP                       */
-    SKP_Silk_encoder_control_FLP    *psEncCtrl          /* I/O  Encoder control FLP                     */
+void silk_process_gains_FLP(
+    silk_encoder_state_FLP      *psEnc,             /* I/O  Encoder state FLP                       */
+    silk_encoder_control_FLP    *psEncCtrl          /* I/O  Encoder control FLP                     */
 )
 {
-    SKP_Silk_shape_state_FLP *psShapeSt = &psEnc->sShape;
+    silk_shape_state_FLP *psShapeSt = &psEnc->sShape;
     SKP_int     k;
     SKP_int32   pGains_Q16[ MAX_NB_SUBFR ];
     SKP_float   s, InvMaxSqrVal, gain, quant_offset;
@@ -63,8 +63,8 @@ void SKP_Silk_process_gains_FLP(
     }
 
     /* Noise shaping quantization */
-    SKP_Silk_gains_quant( psEnc->sCmn.indices.GainsIndices, pGains_Q16, 
-            &psShapeSt->LastGainIndex, psEnc->sCmn.nFramesAnalyzed, psEnc->sCmn.nb_subfr );
+    silk_gains_quant( psEnc->sCmn.indices.GainsIndices, pGains_Q16, 
+            &psShapeSt->LastGainIndex, psEnc->sCmn.nFramesEncoded, psEnc->sCmn.nb_subfr );
 
     /* Overwrite unquantized gains with quantized gains and convert back to Q0 from Q16 */
     for( k = 0; k < psEnc->sCmn.nb_subfr; k++ ) {
@@ -81,7 +81,7 @@ void SKP_Silk_process_gains_FLP(
     }
 
     /* Quantizer boundary adjustment */
-    quant_offset = SKP_Silk_Quantization_Offsets_Q10[ psEnc->sCmn.indices.signalType >> 1 ][ psEnc->sCmn.indices.quantOffsetType ] / 1024.0f;
+    quant_offset = silk_Quantization_Offsets_Q10[ psEnc->sCmn.indices.signalType >> 1 ][ psEnc->sCmn.indices.quantOffsetType ] / 1024.0f;
     psEncCtrl->Lambda = LAMBDA_OFFSET 
                       + LAMBDA_DELAYED_DECISIONS * psEnc->sCmn.nStatesDelayedDecision
                       + LAMBDA_SPEECH_ACT        * psEnc->sCmn.speech_activity_Q8 * ( 1.0f /  256.0f ) 
diff --git a/silk/float/SKP_Silk_regularize_correlations_FLP.c b/silk/float/silk_regularize_correlations_FLP.c
similarity index 95%
rename from silk/float/SKP_Silk_regularize_correlations_FLP.c
rename to silk/float/silk_regularize_correlations_FLP.c
index 3acb944d..dd5d0362 100644
--- a/silk/float/SKP_Silk_regularize_correlations_FLP.c
+++ b/silk/float/silk_regularize_correlations_FLP.c
@@ -25,9 +25,9 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FLP.h"
+#include "silk_main_FLP.h"
 
-void SKP_Silk_regularize_correlations_FLP(
+void silk_regularize_correlations_FLP(
           SKP_float                 *XX,                /* I/O  Correlation matrices                    */
           SKP_float                 *xx,                /* I/O  Correlation values                      */
     const SKP_float                 noise,              /* I    Noise energy to add                     */
diff --git a/silk/float/SKP_Silk_residual_energy_FLP.c b/silk/float/silk_residual_energy_FLP.c
similarity index 83%
rename from silk/float/SKP_Silk_residual_energy_FLP.c
rename to silk/float/silk_residual_energy_FLP.c
index 1d11b4ec..192e5704 100644
--- a/silk/float/SKP_Silk_residual_energy_FLP.c
+++ b/silk/float/silk_residual_energy_FLP.c
@@ -25,13 +25,13 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FLP.h"
+#include "silk_main_FLP.h"
 
 #define MAX_ITERATIONS_RESIDUAL_NRG         10
 #define REGULARIZATION_FACTOR               1e-8f
 
 /* Residual energy: nrg = wxx - 2 * wXx * c + c' * wXX * c */
-SKP_float SKP_Silk_residual_energy_covar_FLP(           /* O    Weighted residual energy                */
+SKP_float silk_residual_energy_covar_FLP(           /* O    Weighted residual energy                */
     const SKP_float                 *c,                 /* I    Filter coefficients                     */
           SKP_float                 *wXX,               /* I/O  Weighted correlation matrix, reg. out   */
     const SKP_float                 *wXx,               /* I    Weighted correlation vector             */
@@ -40,7 +40,7 @@ SKP_float SKP_Silk_residual_energy_covar_FLP(           /* O    Weighted residua
 )
 {
     SKP_int   i, j, k;
-    SKP_float tmp, nrg, regularization;
+    SKP_float tmp, nrg = 0.0f, regularization;
 
     /* Safety checks */
     SKP_assert( D >= 0 );
@@ -84,10 +84,10 @@ SKP_float SKP_Silk_residual_energy_covar_FLP(           /* O    Weighted residua
 
 /* Calculates residual energies of input subframes where all subframes have LPC_order   */
 /* of preceeding samples                                                                */
-void SKP_Silk_residual_energy_FLP(  
+void silk_residual_energy_FLP(  
           SKP_float nrgs[ MAX_NB_SUBFR ],       /* O    Residual energy per subframe    */
     const SKP_float x[],                        /* I    Input signal                    */
-    const SKP_float a[ 2 ][ MAX_LPC_ORDER ],    /* I    AR coefs for each frame half    */
+          SKP_float a[ 2 ][ MAX_LPC_ORDER ],    /* I    AR coefs for each frame half    */
     const SKP_float gains[],                    /* I    Quantization gains              */
     const SKP_int   subfr_length,               /* I    Subframe length                 */
     const SKP_int   nb_subfr,                   /* I    number of subframes             */
@@ -101,13 +101,13 @@ void SKP_Silk_residual_energy_FLP(
     shift = LPC_order + subfr_length;
 
     /* Filter input to create the LPC residual for each frame half, and measure subframe energies */
-    SKP_Silk_LPC_analysis_filter_FLP( LPC_res, a[ 0 ], x + 0 * shift, 2 * shift, LPC_order );
-    nrgs[ 0 ] = ( SKP_float )( gains[ 0 ] * gains[ 0 ] * SKP_Silk_energy_FLP( LPC_res_ptr + 0 * shift, subfr_length ) );
-    nrgs[ 1 ] = ( SKP_float )( gains[ 1 ] * gains[ 1 ] * SKP_Silk_energy_FLP( LPC_res_ptr + 1 * shift, subfr_length ) );
+    silk_LPC_analysis_filter_FLP( LPC_res, a[ 0 ], x + 0 * shift, 2 * shift, LPC_order );
+    nrgs[ 0 ] = ( SKP_float )( gains[ 0 ] * gains[ 0 ] * silk_energy_FLP( LPC_res_ptr + 0 * shift, subfr_length ) );
+    nrgs[ 1 ] = ( SKP_float )( gains[ 1 ] * gains[ 1 ] * silk_energy_FLP( LPC_res_ptr + 1 * shift, subfr_length ) );
 
     if( nb_subfr == MAX_NB_SUBFR ) {
-        SKP_Silk_LPC_analysis_filter_FLP( LPC_res, a[ 1 ], x + 2 * shift, 2 * shift, LPC_order );
-        nrgs[ 2 ] = ( SKP_float )( gains[ 2 ] * gains[ 2 ] * SKP_Silk_energy_FLP( LPC_res_ptr + 0 * shift, subfr_length ) );
-        nrgs[ 3 ] = ( SKP_float )( gains[ 3 ] * gains[ 3 ] * SKP_Silk_energy_FLP( LPC_res_ptr + 1 * shift, subfr_length ) );
+        silk_LPC_analysis_filter_FLP( LPC_res, a[ 1 ], x + 2 * shift, 2 * shift, LPC_order );
+        nrgs[ 2 ] = ( SKP_float )( gains[ 2 ] * gains[ 2 ] * silk_energy_FLP( LPC_res_ptr + 0 * shift, subfr_length ) );
+        nrgs[ 3 ] = ( SKP_float )( gains[ 3 ] * gains[ 3 ] * silk_energy_FLP( LPC_res_ptr + 1 * shift, subfr_length ) );
     }
 }
diff --git a/silk/float/SKP_Silk_scale_copy_vector_FLP.c b/silk/float/silk_scale_copy_vector_FLP.c
similarity index 95%
rename from silk/float/SKP_Silk_scale_copy_vector_FLP.c
rename to silk/float/silk_scale_copy_vector_FLP.c
index 94274fd6..3a9487a2 100644
--- a/silk/float/SKP_Silk_scale_copy_vector_FLP.c
+++ b/silk/float/silk_scale_copy_vector_FLP.c
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_SigProc_FLP.h"
+#include "silk_SigProc_FLP.h"
 
 /* copy and multiply a vector by a constant */
-void SKP_Silk_scale_copy_vector_FLP( 
+void silk_scale_copy_vector_FLP( 
     SKP_float           *data_out, 
     const SKP_float     *data_in, 
     SKP_float           gain, 
diff --git a/silk/float/SKP_Silk_scale_vector_FLP.c b/silk/float/silk_scale_vector_FLP.c
similarity index 95%
rename from silk/float/SKP_Silk_scale_vector_FLP.c
rename to silk/float/silk_scale_vector_FLP.c
index 69b47e67..457d738a 100644
--- a/silk/float/SKP_Silk_scale_vector_FLP.c
+++ b/silk/float/silk_scale_vector_FLP.c
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_SigProc_FLP.h"
+#include "silk_SigProc_FLP.h"
 
 /* multiply a vector by a constant */
-void SKP_Silk_scale_vector_FLP( 
+void silk_scale_vector_FLP( 
     SKP_float           *data1, 
     SKP_float           gain, 
     SKP_int             dataSize
diff --git a/silk/float/SKP_Silk_schur_FLP.c b/silk/float/silk_schur_FLP.c
similarity index 78%
rename from silk/float/SKP_Silk_schur_FLP.c
rename to silk/float/silk_schur_FLP.c
index a6dd24ca..651e50da 100644
--- a/silk/float/SKP_Silk_schur_FLP.c
+++ b/silk/float/silk_schur_FLP.c
@@ -25,25 +25,16 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*                                                                      *
- * SKP_Silk_schur.c                                                   *
- *                                                                      *
- * Calculates the reflection coefficients from the correlation sequence *
- *                                                                      *
- * Copyright 2008 (c), Skype Limited                                    *
- * Date: 080103                                                         *
- */
+#include "silk_SigProc_FLP.h"
 
-#include "SKP_Silk_SigProc_FLP.h"
-
-SKP_float SKP_Silk_schur_FLP(           /* O    returns residual energy                     */
+SKP_float silk_schur_FLP(           /* O    returns residual energy                     */
     SKP_float       refl_coef[],        /* O    reflection coefficients (length order)      */
     const SKP_float auto_corr[],        /* I    autotcorrelation sequence (length order+1)  */
     SKP_int         order               /* I    order                                       */
 )
 {
     SKP_int   k, n;
-    SKP_float C[ SKP_Silk_MAX_ORDER_LPC + 1 ][ 2 ];
+    SKP_float C[ SILK_MAX_ORDER_LPC + 1 ][ 2 ];
     SKP_float Ctmp1, Ctmp2, rc_tmp;
     
     /* Copy correlations */
diff --git a/silk/float/SKP_Silk_solve_LS_FLP.c b/silk/float/silk_solve_LS_FLP.c
similarity index 91%
rename from silk/float/SKP_Silk_solve_LS_FLP.c
rename to silk/float/silk_solve_LS_FLP.c
index e6c02c4d..296d2ffc 100644
--- a/silk/float/SKP_Silk_solve_LS_FLP.c
+++ b/silk/float/silk_solve_LS_FLP.c
@@ -25,15 +25,15 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FLP.h" 
-#include "SKP_Silk_tuning_parameters.h"
+#include "silk_main_FLP.h" 
+#include "silk_tuning_parameters.h"
 
 /**********************************************************************
  * LDL Factorisation. Finds the upper triangular matrix L and the diagonal
  * Matrix D (only the diagonal elements returned in a vector)such that 
  * the symmetric matric A is given by A = L*D*L'.
  **********************************************************************/
-void SKP_Silk_LDL_FLP(
+void silk_LDL_FLP(
     SKP_float           *A,      /* (I/O) Pointer to Symetric Square Matrix */
     SKP_int             M,       /* (I) Size of Matrix */
     SKP_float           *L,      /* (I/O) Pointer to Square Upper triangular Matrix */
@@ -44,7 +44,7 @@ void SKP_Silk_LDL_FLP(
  * Function to solve linear equation Ax = b, when A is a MxM lower 
  * triangular matrix, with ones on the diagonal.
  **********************************************************************/
-void SKP_Silk_SolveWithLowerTriangularWdiagOnes_FLP(
+void silk_SolveWithLowerTriangularWdiagOnes_FLP(
     const SKP_float     *L,     /* (I) Pointer to Lower Triangular Matrix */
     SKP_int             M,      /* (I) Dim of Matrix equation */
     const SKP_float     *b,     /* (I) b Vector */
@@ -55,7 +55,7 @@ void SKP_Silk_SolveWithLowerTriangularWdiagOnes_FLP(
  * Function to solve linear equation (A^T)x = b, when A is a MxM lower 
  * triangular, with ones on the diagonal. (ie then A^T is upper triangular)
  **********************************************************************/
-void SKP_Silk_SolveWithUpperTriangularFromLowerWdiagOnes_FLP(
+void silk_SolveWithUpperTriangularFromLowerWdiagOnes_FLP(
     const SKP_float     *L,     /* (I) Pointer to Lower Triangular Matrix */
     SKP_int             M,      /* (I) Dim of Matrix equation */
     const SKP_float     *b,     /* (I) b Vector */
@@ -66,7 +66,7 @@ void SKP_Silk_SolveWithUpperTriangularFromLowerWdiagOnes_FLP(
  * Function to solve linear equation Ax = b, when A is a MxM  
  * symmetric square matrix - using LDL factorisation
  **********************************************************************/
-void SKP_Silk_solve_LDL_FLP(
+void silk_solve_LDL_FLP(
           SKP_float                 *A,                 /* I/O  Symmetric square matrix, out: reg.      */
     const SKP_int                   M,                  /* I    Size of matrix                          */
     const SKP_float                 *b,                 /* I    Pointer to b vector                     */
@@ -84,13 +84,13 @@ void SKP_Silk_solve_LDL_FLP(
     Factorize A by LDL such that A = L*D*(L^T),
     where L is lower triangular with ones on diagonal
     ****************************************************/
-    SKP_Silk_LDL_FLP( A, M, &L[ 0 ][ 0 ], Dinv );
+    silk_LDL_FLP( A, M, &L[ 0 ][ 0 ], Dinv );
 
     /****************************************************
     * substitute D*(L^T) = T. ie:
     L*D*(L^T)*x = b => L*T = b <=> T = inv(L)*b
     ******************************************************/
-    SKP_Silk_SolveWithLowerTriangularWdiagOnes_FLP( &L[ 0 ][ 0 ], M, b, T );
+    silk_SolveWithLowerTriangularWdiagOnes_FLP( &L[ 0 ][ 0 ], M, b, T );
 
     /****************************************************
     D*(L^T)*x = T <=> (L^T)*x = inv(D)*T, because D is 
@@ -102,10 +102,10 @@ void SKP_Silk_solve_LDL_FLP(
     /****************************************************
     x = inv(L') * inv(D) * T
     *****************************************************/
-    SKP_Silk_SolveWithUpperTriangularFromLowerWdiagOnes_FLP( &L[ 0 ][ 0 ], M, T, x );
+    silk_SolveWithUpperTriangularFromLowerWdiagOnes_FLP( &L[ 0 ][ 0 ], M, T, x );
 }
 
-void SKP_Silk_SolveWithUpperTriangularFromLowerWdiagOnes_FLP(
+void silk_SolveWithUpperTriangularFromLowerWdiagOnes_FLP(
     const SKP_float     *L,     /* (I) Pointer to Lower Triangular Matrix */
     SKP_int             M,      /* (I) Dim of Matrix equation */
     const SKP_float     *b,     /* (I) b Vector */
@@ -127,7 +127,7 @@ void SKP_Silk_SolveWithUpperTriangularFromLowerWdiagOnes_FLP(
     }
 }
 
-void SKP_Silk_SolveWithLowerTriangularWdiagOnes_FLP(
+void silk_SolveWithLowerTriangularWdiagOnes_FLP(
     const SKP_float     *L,     /* (I) Pointer to Lower Triangular Matrix */
     SKP_int             M,      /* (I) Dim of Matrix equation */
     const SKP_float     *b,     /* (I) b Vector */
@@ -149,7 +149,7 @@ void SKP_Silk_SolveWithLowerTriangularWdiagOnes_FLP(
     }
 }
 
-void SKP_Silk_LDL_FLP(
+void silk_LDL_FLP(
     SKP_float           *A,      /* (I/O) Pointer to Symetric Square Matrix */
     SKP_int             M,       /* (I) Size of Matrix */
     SKP_float           *L,      /* (I/O) Pointer to Square Upper triangular Matrix */
diff --git a/silk/float/SKP_Silk_sort_FLP.c b/silk/float/silk_sort_FLP.c
similarity index 80%
rename from silk/float/SKP_Silk_sort_FLP.c
rename to silk/float/silk_sort_FLP.c
index 20d3f7d5..7872fe28 100644
--- a/silk/float/SKP_Silk_sort_FLP.c
+++ b/silk/float/silk_sort_FLP.c
@@ -29,12 +29,12 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /* Best case:  O(n)   for an already sorted array           */
 /* Worst case: O(n^2) for an inversely sorted array         */
 
-#include "SKP_Silk_typedef.h"
-#include "SKP_Silk_SigProc_FLP.h"
+#include "silk_typedef.h"
+#include "silk_SigProc_FLP.h"
 
-void SKP_Silk_insertion_sort_decreasing_FLP(
+void silk_insertion_sort_decreasing_FLP(
     SKP_float            *a,          /* I/O:  Unsorted / Sorted vector                */
-    SKP_int              *index,      /* O:    Index vector for the sorted elements    */
+    SKP_int              *idx,      /* O:    Index vector for the sorted elements    */
     const SKP_int        L,           /* I:    Vector length                           */
     const SKP_int        K            /* I:    Number of correctly sorted positions    */
 )
@@ -49,18 +49,18 @@ void SKP_Silk_insertion_sort_decreasing_FLP(
 
     /* Write start indices in index vector */
     for( i = 0; i < K; i++ ) {
-        index[ i ] = i;
+        idx[ i ] = i;
     }
 
     /* Sort vector elements by value, decreasing order */
     for( i = 1; i < K; i++ ) {
         value = a[ i ];
         for( j = i - 1; ( j >= 0 ) && ( value > a[ j ] ); j-- ) {
-            a[ j + 1 ]     = a[ j ];     /* Shift value */
-            index[ j + 1 ] = index[ j ]; /* Shift index */
+            a[ j + 1 ]   = a[ j ];      /* Shift value */
+            idx[ j + 1 ] = idx[ j ];    /* Shift index */
         }
-        a[ j + 1 ]     = value; /* Write value */
-        index[ j + 1 ] = i;     /* Write index */
+        a[ j + 1 ]   = value;   /* Write value */
+        idx[ j + 1 ] = i;       /* Write index */
     }
 
     /* If less than L values are asked check the remaining values,      */
@@ -69,11 +69,11 @@ void SKP_Silk_insertion_sort_decreasing_FLP(
         value = a[ i ];
         if( value > a[ K - 1 ] ) {
             for( j = K - 2; ( j >= 0 ) && ( value > a[ j ] ); j-- ) {
-                a[ j + 1 ]     = a[ j ];     /* Shift value */
-                index[ j + 1 ] = index[ j ]; /* Shift index */
+                a[ j + 1 ]   = a[ j ];      /* Shift value */
+                idx[ j + 1 ] = idx[ j ];    /* Shift index */
             }
-            a[ j + 1 ]     = value; /* Write value */
-            index[ j + 1 ] = i;     /* Write index */
+            a[ j + 1 ]   = value;   /* Write value */
+            idx[ j + 1 ] = i;       /* Write index */
         }
     }
 }
diff --git a/silk/float/SKP_Silk_structs_FLP.h b/silk/float/silk_structs_FLP.h
similarity index 78%
rename from silk/float/SKP_Silk_structs_FLP.h
rename to silk/float/silk_structs_FLP.h
index 3c823fa9..44c1e94f 100644
--- a/silk/float/SKP_Silk_structs_FLP.h
+++ b/silk/float/silk_structs_FLP.h
@@ -25,12 +25,12 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#ifndef SKP_SILK_STRUCTS_FLP_H
-#define SKP_SILK_STRUCTS_FLP_H
+#ifndef SILK_STRUCTS_FLP_H
+#define SILK_STRUCTS_FLP_H
 
-#include "SKP_Silk_typedef.h"
-#include "SKP_Silk_main.h"
-#include "SKP_Silk_structs.h"
+#include "silk_typedef.h"
+#include "silk_main.h"
+#include "silk_structs.h"
 
 #ifdef __cplusplus
 extern "C"
@@ -45,7 +45,7 @@ typedef struct {
     SKP_float   HarmBoost_smth;
     SKP_float   HarmShapeGain_smth;
     SKP_float   Tilt_smth;
-} SKP_Silk_shape_state_FLP;
+} silk_shape_state_FLP;
 
 /********************************/
 /* Prefilter state              */
@@ -59,15 +59,15 @@ typedef struct {
     SKP_float   sHarmHP;
     SKP_int32   rand_seed;
     SKP_int     lagPrev;
-} SKP_Silk_prefilter_state_FLP;
+} silk_prefilter_state_FLP;
 
 /********************************/
 /* Encoder state FLP            */
 /********************************/
 typedef struct {
-    SKP_Silk_encoder_state              sCmn;                       /* Common struct, shared with fixed-point code */
-    SKP_Silk_shape_state_FLP            sShape;                     /* Noise shaping state */
-    SKP_Silk_prefilter_state_FLP        sPrefilt;                   /* Prefilter State */
+    silk_encoder_state              sCmn;                       /* Common struct, shared with fixed-point code */
+    silk_shape_state_FLP            sShape;                     /* Noise shaping state */
+    silk_prefilter_state_FLP        sPrefilt;                   /* Prefilter State */
 
     /* Buffer for find pitch and noise shape analysis */
     SKP_float                           x_buf[ 2 * MAX_FRAME_LENGTH + LA_SHAPE_MAX ];/* Buffer for find pitch and noise shape analysis */
@@ -76,7 +76,7 @@ typedef struct {
     /* Parameters for LTP scaling control */
     SKP_float                           prevLTPredCodGain;
     SKP_float                           HPLTPredCodGain;
-} SKP_Silk_encoder_state_FLP;
+} silk_encoder_state_FLP;
 
 /************************/
 /* Encoder control FLP  */
@@ -107,7 +107,20 @@ typedef struct {
     SKP_float                   predGain;
 	SKP_float					LTPredCodGain;
 	SKP_float					ResNrg[ MAX_NB_SUBFR ];					/* Residual energy per subframe */
-} SKP_Silk_encoder_control_FLP;
+} silk_encoder_control_FLP;
+
+/************************/
+/* Encoder Super Struct */
+/************************/
+typedef struct {
+    silk_encoder_state_FLP          state_Fxx[ ENCODER_NUM_CHANNELS ];
+    stereo_enc_state                    sStereo;
+    SKP_int32                           nBitsExceeded;
+    SKP_int                             nChannelsAPI;
+    SKP_int                             nChannelsInternal;
+    SKP_int                             timeSinceSwitchAllowed_ms;
+    SKP_int                             allowBandwidthSwitch;
+} silk_encoder;
 
 #ifdef __cplusplus
 }
diff --git a/silk/float/SKP_Silk_warped_autocorrelation_FLP.c b/silk/float/silk_warped_autocorrelation_FLP.c
similarity index 95%
rename from silk/float/SKP_Silk_warped_autocorrelation_FLP.c
rename to silk/float/silk_warped_autocorrelation_FLP.c
index 355d7e49..402e2ecb 100644
--- a/silk/float/SKP_Silk_warped_autocorrelation_FLP.c
+++ b/silk/float/silk_warped_autocorrelation_FLP.c
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FLP.h"
+#include "silk_main_FLP.h"
 
 /* Autocorrelations for a warped frequency axis */
-void SKP_Silk_warped_autocorrelation_FLP( 
+void silk_warped_autocorrelation_FLP( 
           SKP_float                 *corr,              /* O    Result [order + 1]                      */
     const SKP_float                 *input,             /* I    Input data to correlate                 */
     const SKP_float                 warping,            /* I    Warping coefficient                     */
diff --git a/silk/float/SKP_Silk_wrappers_FLP.c b/silk/float/silk_wrappers_FLP.c
similarity index 87%
rename from silk/float/SKP_Silk_wrappers_FLP.c
rename to silk/float/silk_wrappers_FLP.c
index 9e5b7650..27a71e5c 100644
--- a/silk/float/SKP_Silk_wrappers_FLP.c
+++ b/silk/float/silk_wrappers_FLP.c
@@ -25,12 +25,12 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FLP.h"
+#include "silk_main_FLP.h"
 
 /* Wrappers. Calls flp / fix code */
 
 /* Convert AR filter coefficients to NLSF parameters */
-void SKP_Silk_A2NLSF_FLP( 
+void silk_A2NLSF_FLP( 
           SKP_int16                 *NLSF_Q15,          /* O    NLSF vector      [ LPC_order ]          */
     const SKP_float                 *pAR,               /* I    LPC coefficients [ LPC_order ]          */
     const SKP_int                   LPC_order           /* I    LPC order                               */
@@ -43,11 +43,11 @@ void SKP_Silk_A2NLSF_FLP(
         a_fix_Q16[ i ] = SKP_float2int( pAR[ i ] * 65536.0f );
     }
 
-    SKP_Silk_A2NLSF( NLSF_Q15, a_fix_Q16, LPC_order );
+    silk_A2NLSF( NLSF_Q15, a_fix_Q16, LPC_order );
 }
 
 /* Convert LSF parameters to AR prediction filter coefficients */
-void SKP_Silk_NLSF2A_stable_FLP( 
+void silk_NLSF2A_stable_FLP( 
           SKP_float                 *pAR,               /* O    LPC coefficients [ LPC_order ]          */
     const SKP_int16                 *NLSF_Q15,          /* I    NLSF vector      [ LPC_order ]          */
     const SKP_int                   LPC_order           /* I    LPC order                               */
@@ -56,7 +56,7 @@ void SKP_Silk_NLSF2A_stable_FLP(
     SKP_int   i;
     SKP_int16 a_fix_Q12[ MAX_LPC_ORDER ];
 
-    SKP_Silk_NLSF2A_stable( a_fix_Q12, NLSF_Q15, LPC_order );
+    silk_NLSF2A_stable( a_fix_Q12, NLSF_Q15, LPC_order );
 
     for( i = 0; i < LPC_order; i++ ) {
         pAR[ i ] = ( SKP_float )a_fix_Q12[ i ] * ( 1.0f / 4096.0f );
@@ -66,8 +66,8 @@ void SKP_Silk_NLSF2A_stable_FLP(
 /******************************************/
 /* Floating-point NLSF processing wrapper */
 /******************************************/
-void SKP_Silk_process_NLSFs_FLP(
-    SKP_Silk_encoder_state          *psEncC,                            /* I/O  Encoder state                               */
+void silk_process_NLSFs_FLP(
+    silk_encoder_state              *psEncC,                            /* I/O  Encoder state                               */
     SKP_float                       PredCoef[ 2 ][ MAX_LPC_ORDER ],     /* O    Prediction coefficients                     */
     SKP_int16                       NLSF_Q15[      MAX_LPC_ORDER ],     /* I/O  Normalized LSFs (quant out) (0 - (2^15-1))  */
     const SKP_int16                 prev_NLSF_Q15[ MAX_LPC_ORDER ]      /* I    Previous Normalized LSFs (0 - (2^15-1))     */
@@ -76,7 +76,7 @@ void SKP_Silk_process_NLSFs_FLP(
     SKP_int     i, j;
     SKP_int16   PredCoef_Q12[ 2 ][ MAX_LPC_ORDER ];
 
-    SKP_Silk_process_NLSFs( psEncC, PredCoef_Q12, NLSF_Q15, prev_NLSF_Q15);
+    silk_process_NLSFs( psEncC, PredCoef_Q12, NLSF_Q15, prev_NLSF_Q15);
 
     for( j = 0; j < 2; j++ ) {
         for( i = 0; i < psEncC->predictLPCOrder; i++ ) {
@@ -88,11 +88,11 @@ void SKP_Silk_process_NLSFs_FLP(
 /****************************************/
 /* Floating-point Silk NSQ wrapper      */
 /****************************************/
-void SKP_Silk_NSQ_wrapper_FLP(
-    SKP_Silk_encoder_state_FLP      *psEnc,         /* I/O  Encoder state FLP                           */
-    SKP_Silk_encoder_control_FLP    *psEncCtrl,     /* I/O  Encoder control FLP                         */
+void silk_NSQ_wrapper_FLP(
+    silk_encoder_state_FLP          *psEnc,         /* I/O  Encoder state FLP                           */
+    silk_encoder_control_FLP        *psEncCtrl,     /* I/O  Encoder control FLP                         */
     SideInfoIndices                 *psIndices,     /* I/O  Quantization indices                        */
-    SKP_Silk_nsq_state              *psNSQ,         /* I/O  Noise Shaping Quantzation state             */
+    silk_nsq_state                  *psNSQ,         /* I/O  Noise Shaping Quantzation state             */
           SKP_int8                  pulses[],       /* O    Quantized pulse signal                      */
     const SKP_float                 x[]             /* I    Prefiltered input signal                    */
 )
@@ -144,7 +144,7 @@ void SKP_Silk_NSQ_wrapper_FLP(
     }
 
     if( psIndices->signalType == TYPE_VOICED ) {
-        LTP_scale_Q14 = SKP_Silk_LTPScales_table_Q14[ psIndices->LTP_scaleIndex ];
+        LTP_scale_Q14 = silk_LTPScales_table_Q14[ psIndices->LTP_scaleIndex ];
     } else {
         LTP_scale_Q14 = 0;
     }
@@ -154,10 +154,10 @@ void SKP_Silk_NSQ_wrapper_FLP(
 
     /* Call NSQ */
     if( psEnc->sCmn.nStatesDelayedDecision > 1 || psEnc->sCmn.warping_Q16 > 0 ) {
-        SKP_Silk_NSQ_del_dec( &psEnc->sCmn, psNSQ, psIndices, x_16, pulses, PredCoef_Q12[ 0 ], LTPCoef_Q14, 
+        silk_NSQ_del_dec( &psEnc->sCmn, psNSQ, psIndices, x_16, pulses, PredCoef_Q12[ 0 ], LTPCoef_Q14, 
             AR2_Q13, HarmShapeGain_Q14, Tilt_Q14, LF_shp_Q14, Gains_Q16, psEncCtrl->pitchL, Lambda_Q10, LTP_scale_Q14 );
     } else {
-        SKP_Silk_NSQ( &psEnc->sCmn, psNSQ, psIndices, x_16, pulses, PredCoef_Q12[ 0 ], LTPCoef_Q14, 
+        silk_NSQ( &psEnc->sCmn, psNSQ, psIndices, x_16, pulses, PredCoef_Q12[ 0 ], LTPCoef_Q14, 
             AR2_Q13, HarmShapeGain_Q14, Tilt_Q14, LF_shp_Q14, Gains_Q16, psEncCtrl->pitchL, Lambda_Q10, LTP_scale_Q14 );
     }
 }
@@ -165,7 +165,7 @@ void SKP_Silk_NSQ_wrapper_FLP(
 /***********************************************/
 /* Floating-point Silk LTP quantiation wrapper */
 /***********************************************/
-void SKP_Silk_quant_LTP_gains_FLP(
+void silk_quant_LTP_gains_FLP(
           SKP_float B[ MAX_NB_SUBFR * LTP_ORDER ],              /* I/O  (Un-)quantized LTP gains                */
           SKP_int8  cbk_index[ MAX_NB_SUBFR ],                  /* O    Codebook index                          */
           SKP_int8  *periodicity_index,                         /* O    Periodicity index                       */
@@ -186,7 +186,7 @@ void SKP_Silk_quant_LTP_gains_FLP(
         W_Q18[ i ] = (SKP_int32)SKP_float2int( W[ i ] * 262144.0f );
     }
 
-    SKP_Silk_quant_LTP_gains( B_Q14, cbk_index, periodicity_index, W_Q18, mu_Q10, lowComplexity, nb_subfr );
+    silk_quant_LTP_gains( B_Q14, cbk_index, periodicity_index, W_Q18, mu_Q10, lowComplexity, nb_subfr );
 
     for( i = 0; i < nb_subfr * LTP_ORDER; i++ ) {
         B[ i ] = (SKP_float)B_Q14[ i ] * ( 1.0f / 16384.0f );
diff --git a/silk/SKP_Silk_A2NLSF.c b/silk/silk_A2NLSF.c
similarity index 83%
rename from silk/SKP_Silk_A2NLSF.c
rename to silk/silk_A2NLSF.c
index 592c88ca..a2257dc9 100644
--- a/silk/SKP_Silk_A2NLSF.c
+++ b/silk/silk_A2NLSF.c
@@ -29,9 +29,10 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /* Requires the order to be an even number                      */
 /* A piecewise linear approximation maps LSF <-> cos(LSF)       */
 /* Therefore the result is not accurate NLSFs, but the two      */
-/* function are accurate inverses of each other                 */
+/* functions are accurate inverses of each other                */
 
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
+#include "silk_tables.h"
 
 /* Number of binary divisions, when not in low complexity mode */
 #define BIN_DIV_STEPS_A2NLSF_FIX      3 /* must be no higher than 16 - log2( LSF_COS_TAB_SZ_FIX ) */
@@ -43,7 +44,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 /* Helper function for A2NLSF(..)                    */
 /* Transforms polynomials from cos(n*f) to cos(f)^n  */
-SKP_INLINE void SKP_Silk_A2NLSF_trans_poly(
+SKP_INLINE void silk_A2NLSF_trans_poly(
     SKP_int32        *p,    /* I/O    Polynomial                                */
     const SKP_int    dd     /* I      Polynomial order (= filter order / 2 )    */
 )
@@ -59,7 +60,7 @@ SKP_INLINE void SKP_Silk_A2NLSF_trans_poly(
 }    
 /* Helper function for A2NLSF(..)                    */
 /* Polynomial evaluation                             */
-SKP_INLINE SKP_int32 SKP_Silk_A2NLSF_eval_poly(    /* return the polynomial evaluation, in QPoly */
+SKP_INLINE SKP_int32 silk_A2NLSF_eval_poly(    /* return the polynomial evaluation, in QPoly */
     SKP_int32        *p,    /* I    Polynomial, QPoly        */
     const SKP_int32   x,    /* I    Evaluation point, Q12    */
     const SKP_int    dd     /* I    Order                    */
@@ -76,7 +77,7 @@ SKP_INLINE SKP_int32 SKP_Silk_A2NLSF_eval_poly(    /* return the polynomial eval
     return y32;
 }
 
-SKP_INLINE void SKP_Silk_A2NLSF_init(
+SKP_INLINE void silk_A2NLSF_init(
      const SKP_int32    *a_Q16,
      SKP_int32          *P, 
      SKP_int32          *Q, 
@@ -110,13 +111,13 @@ SKP_INLINE void SKP_Silk_A2NLSF_init(
     }
 
     /* Transform polynomials from cos(n*f) to cos(f)^n */
-    SKP_Silk_A2NLSF_trans_poly( P, dd );
-    SKP_Silk_A2NLSF_trans_poly( Q, dd );
+    silk_A2NLSF_trans_poly( P, dd );
+    silk_A2NLSF_trans_poly( Q, dd );
 }
 
 /* Compute Normalized Line Spectral Frequencies (NLSFs) from whitening filter coefficients        */
 /* If not all roots are found, the a_Q16 coefficients are bandwidth expanded until convergence.    */
-void SKP_Silk_A2NLSF(
+void silk_A2NLSF(
     SKP_int16        *NLSF,                 /* O    Normalized Line Spectral Frequencies, Q15 (0 - (2^15-1)), [d]    */
     SKP_int32        *a_Q16,                /* I/O  Monic whitening filter coefficients in Q16 [d]                   */
     const SKP_int    d                      /* I    Filter order (must be even)                                      */
@@ -126,8 +127,8 @@ void SKP_Silk_A2NLSF(
     SKP_int32 xlo, xhi, xmid;
     SKP_int32 ylo, yhi, ymid;
     SKP_int32 nom, den;
-    SKP_int32 P[ SKP_Silk_MAX_ORDER_LPC / 2 + 1 ];
-    SKP_int32 Q[ SKP_Silk_MAX_ORDER_LPC / 2 + 1 ];
+    SKP_int32 P[ SILK_MAX_ORDER_LPC / 2 + 1 ];
+    SKP_int32 Q[ SILK_MAX_ORDER_LPC / 2 + 1 ];
     SKP_int32 *PQ[ 2 ];
     SKP_int32 *p;
 
@@ -137,19 +138,19 @@ void SKP_Silk_A2NLSF(
 
     dd = SKP_RSHIFT( d, 1 );
 
-    SKP_Silk_A2NLSF_init( a_Q16, P, Q, dd );
+    silk_A2NLSF_init( a_Q16, P, Q, dd );
 
     /* Find roots, alternating between P and Q */
     p = P;    /* Pointer to polynomial */
     
-    xlo = SKP_Silk_LSFCosTab_FIX_Q12[ 0 ]; // Q12
-    ylo = SKP_Silk_A2NLSF_eval_poly( p, xlo, dd );
+    xlo = silk_LSFCosTab_FIX_Q12[ 0 ]; // Q12
+    ylo = silk_A2NLSF_eval_poly( p, xlo, dd );
 
     if( ylo < 0 ) {
         /* Set the first NLSF to zero and move on to the next */
         NLSF[ 0 ] = 0;
         p = Q;                      /* Pointer to polynomial */
-        ylo = SKP_Silk_A2NLSF_eval_poly( p, xlo, dd );
+        ylo = silk_A2NLSF_eval_poly( p, xlo, dd );
         root_ix = 1;                /* Index of current root */
     } else {
         root_ix = 0;                /* Index of current root */
@@ -159,13 +160,13 @@ void SKP_Silk_A2NLSF(
     while( 1 ) {
         /* Evaluate polynomial */
 #if OVERSAMPLE_COSINE_TABLE
-        xhi = SKP_Silk_LSFCosTab_FIX_Q12[   k       >> 1 ] +
-          ( ( SKP_Silk_LSFCosTab_FIX_Q12[ ( k + 1 ) >> 1 ] - 
-              SKP_Silk_LSFCosTab_FIX_Q12[   k       >> 1 ] ) >> 1 );    /* Q12 */
+        xhi = silk_LSFCosTab_FIX_Q12[   k       >> 1 ] +
+          ( ( silk_LSFCosTab_FIX_Q12[ ( k + 1 ) >> 1 ] - 
+              silk_LSFCosTab_FIX_Q12[   k       >> 1 ] ) >> 1 );    /* Q12 */
 #else
-        xhi = SKP_Silk_LSFCosTab_FIX_Q12[ k ]; /* Q12 */
+        xhi = silk_LSFCosTab_FIX_Q12[ k ]; /* Q12 */
 #endif
-        yhi = SKP_Silk_A2NLSF_eval_poly( p, xhi, dd );
+        yhi = silk_A2NLSF_eval_poly( p, xhi, dd );
         
         /* Detect zero crossing */
         if( ( ylo <= 0 && yhi >= 0 ) || ( ylo >= 0 && yhi <= 0 ) ) {
@@ -178,7 +179,7 @@ void SKP_Silk_A2NLSF(
             for( m = 0; m < BIN_DIV_STEPS_A2NLSF_FIX; m++ ) {
                 /* Evaluate polynomial */
                 xmid = SKP_RSHIFT_ROUND( xlo + xhi, 1 );
-                ymid = SKP_Silk_A2NLSF_eval_poly( p, xmid, dd );
+                ymid = silk_A2NLSF_eval_poly( p, xmid, dd );
 
                 /* Detect zero crossing */
                 if( ( ylo <= 0 && ymid >= 0 ) || ( ylo >= 0 && ymid <= 0 ) ) {
@@ -228,11 +229,11 @@ void SKP_Silk_A2NLSF(
             
             /* Evaluate polynomial */
 #if OVERSAMPLE_COSINE_TABLE
-            xlo = SKP_Silk_LSFCosTab_FIX_Q12[ ( k - 1 ) >> 1 ] +
-              ( ( SKP_Silk_LSFCosTab_FIX_Q12[   k       >> 1 ] - 
-                  SKP_Silk_LSFCosTab_FIX_Q12[ ( k - 1 ) >> 1 ] ) >> 1 ); // Q12
+            xlo = silk_LSFCosTab_FIX_Q12[ ( k - 1 ) >> 1 ] +
+              ( ( silk_LSFCosTab_FIX_Q12[   k       >> 1 ] - 
+                  silk_LSFCosTab_FIX_Q12[ ( k - 1 ) >> 1 ] ) >> 1 ); // Q12
 #else
-            xlo = SKP_Silk_LSFCosTab_FIX_Q12[ k - 1 ]; // Q12
+            xlo = silk_LSFCosTab_FIX_Q12[ k - 1 ]; // Q12
 #endif
             ylo = SKP_LSHIFT( 1 - ( root_ix & 2 ), 12 );
         } else {
@@ -257,17 +258,17 @@ void SKP_Silk_A2NLSF(
                 }
 
                 /* Error: Apply progressively more bandwidth expansion and run again */
-                SKP_Silk_bwexpander_32( a_Q16, d, 65536 - SKP_SMULBB( 10 + i, i ) ); // 10_Q16 = 0.00015
+                silk_bwexpander_32( a_Q16, d, 65536 - SKP_SMULBB( 10 + i, i ) ); // 10_Q16 = 0.00015
 
-                SKP_Silk_A2NLSF_init( a_Q16, P, Q, dd );
+                silk_A2NLSF_init( a_Q16, P, Q, dd );
                 p = P;                            /* Pointer to polynomial */
-                xlo = SKP_Silk_LSFCosTab_FIX_Q12[ 0 ]; // Q12
-                ylo = SKP_Silk_A2NLSF_eval_poly( p, xlo, dd );
+                xlo = silk_LSFCosTab_FIX_Q12[ 0 ]; // Q12
+                ylo = silk_A2NLSF_eval_poly( p, xlo, dd );
                 if( ylo < 0 ) {
                     /* Set the first NLSF to zero and move on to the next */
                     NLSF[ 0 ] = 0;
                     p = Q;                        /* Pointer to polynomial */
-                    ylo = SKP_Silk_A2NLSF_eval_poly( p, xlo, dd );
+                    ylo = silk_A2NLSF_eval_poly( p, xlo, dd );
                     root_ix = 1;                  /* Index of current root */
                 } else {
                     root_ix = 0;                  /* Index of current root */
diff --git a/silk/SKP_Silk_SDK_API.h b/silk/silk_API.h
similarity index 77%
rename from silk/SKP_Silk_SDK_API.h
rename to silk/silk_API.h
index fcbfc7fa..24c530a6 100644
--- a/silk/SKP_Silk_SDK_API.h
+++ b/silk/silk_API.h
@@ -25,12 +25,12 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#ifndef SKP_SILK_SDK_API_H
-#define SKP_SILK_SDK_API_H
+#ifndef SILK_API_H
+#define SILK_API_H
 
-#include "SKP_Silk_control.h"
-#include "SKP_Silk_typedef.h"
-#include "SKP_Silk_errors.h"
+#include "silk_control.h"
+#include "silk_typedef.h"
+#include "silk_errors.h"
 #include "entenc.h"
 #include "entdec.h"
 
@@ -46,7 +46,7 @@ typedef struct {
     SKP_int     VADFlag;                                /* Voice activity for packet                            */
     SKP_int     VADFlags[ SILK_MAX_FRAMES_PER_PACKET ]; /* Voice activity for each frame in packet              */
     SKP_int     inbandFECFlag;                          /* Flag indicating if packet contains in-band FEC       */
-} SKP_Silk_TOC_struct;
+} silk_TOC_struct;
 
 /****************************************/
 /* Encoder functions                    */
@@ -55,24 +55,24 @@ typedef struct {
 /***********************************************/
 /* Get size in bytes of the Silk encoder state */
 /***********************************************/
-SKP_int SKP_Silk_SDK_Get_Encoder_Size(                  /* O:   Returns error code                              */
+SKP_int silk_Get_Encoder_Size(                          /* O:   Returns error code                              */
     SKP_int32                           *encSizeBytes   /* O:   Number of bytes in SILK encoder state           */
 );
 
 /*************************/
 /* Init or reset encoder */
 /*************************/
-SKP_int SKP_Silk_SDK_InitEncoder(                       /* O:   Returns error code                              */
+SKP_int silk_InitEncoder(                               /* O:   Returns error code                              */
     void                                *encState,      /* I/O: State                                           */
-    SKP_SILK_SDK_EncControlStruct       *encStatus      /* O:   Encoder Status                                  */
+    silk_EncControlStruct               *encStatus      /* O:   Encoder Status                                  */
 );
 
 /***************************************/
 /* Read control structure from encoder */
 /***************************************/
-SKP_int SKP_Silk_SDK_QueryEncoder(                      /* O:   Returns error code                              */
+SKP_int silk_QueryEncoder(                              /* O:   Returns error code                              */
     const void                          *encState,      /* I:   State                                           */
-    SKP_SILK_SDK_EncControlStruct       *encStatus      /* O:   Encoder Status                                  */
+    silk_EncControlStruct               *encStatus      /* O:   Encoder Status                                  */
 );
 
 /**************************/
@@ -80,9 +80,9 @@ SKP_int SKP_Silk_SDK_QueryEncoder(                      /* O:   Returns error co
 /**************************/
 /* Note: if prefillFlag is set, the input must contain 10 ms of audio, irrespective of what 					*/
 /* encControl->payloadSize_ms is set to 																		*/
-SKP_int SKP_Silk_SDK_Encode(                            /* O:   Returns error code                              */
+SKP_int silk_Encode(                                    /* O:   Returns error code                              */
     void                                *encState,      /* I/O: State                                           */
-    SKP_SILK_SDK_EncControlStruct       *encControl,    /* I:   Control status                                  */
+    silk_EncControlStruct               *encControl,    /* I:   Control status                                  */
     const SKP_int16                     *samplesIn,     /* I:   Speech sample input vector                      */
     SKP_int                             nSamplesIn,     /* I:   Number of samples in input vector               */
     ec_enc                              *psRangeEnc,    /* I/O  Compressor data structure                       */
@@ -97,23 +97,23 @@ SKP_int SKP_Silk_SDK_Encode(                            /* O:   Returns error co
 /***********************************************/
 /* Get size in bytes of the Silk decoder state */
 /***********************************************/
-SKP_int SKP_Silk_SDK_Get_Decoder_Size(                  /* O:   Returns error code                              */
+SKP_int silk_Get_Decoder_Size(                          /* O:   Returns error code                              */
     SKP_int32                           *decSizeBytes   /* O:   Number of bytes in SILK decoder state           */
 );
 
 /*************************/
 /* Init or Reset decoder */
 /*************************/
-SKP_int SKP_Silk_SDK_InitDecoder(                       /* O:   Returns error code                              */
+SKP_int silk_InitDecoder(                               /* O:   Returns error code                              */
     void                                *decState       /* I/O: State                                           */
 );
 
 /******************/
 /* Decode a frame */
 /******************/
-SKP_int SKP_Silk_SDK_Decode(                            /* O:   Returns error code                              */
+SKP_int silk_Decode(                                    /* O:   Returns error code                              */
     void*                               decState,       /* I/O: State                                           */
-    SKP_SILK_SDK_DecControlStruct*      decControl,     /* I/O: Control Structure                               */
+    silk_DecControlStruct*              decControl,     /* I/O: Control Structure                               */
     SKP_int                             lostFlag,       /* I:   0: no loss, 1 loss, 2 decode fec                */
     SKP_int                             newPacketFlag,  /* I:   Indicates first decoder call for this packet    */
     ec_dec                              *psRangeDec,    /* I/O  Compressor data structure                       */
@@ -121,25 +121,14 @@ SKP_int SKP_Silk_SDK_Decode(                            /* O:   Returns error co
     SKP_int32                           *nSamplesOut    /* O:   Number of samples decoded                       */
 );
 
-/***************************************************************/
-/* Find Low Bit Rate Redundancy (LBRR) information in a packet */
-/***************************************************************/
-void SKP_Silk_SDK_search_for_LBRR(
-    const SKP_uint8                     *inData,        /* I:   Encoded input vector                            */
-    const SKP_int16                     nBytesIn,       /* I:   Number of input bytes                           */
-    SKP_int                             lost_offset,    /* I:   Offset from lost packet                         */
-    SKP_uint8                           *LBRRData,      /* O:   LBRR payload                                    */
-    SKP_int32                           *nLBRRBytes     /* O:   Number of LBRR Bytes                            */
-);
-
 /**************************************/
 /* Get table of contents for a packet */
 /**************************************/
-SKP_int SKP_Silk_SDK_get_TOC(
+SKP_int silk_get_TOC(
     const SKP_uint8                     *payload,           /* I    Payload data                                */
     const SKP_int                       nBytesIn,           /* I:   Number of input bytes                       */
     const SKP_int                       nFramesPerPayload,  /* I:   Number of SILK frames per payload           */
-    SKP_Silk_TOC_struct                 *Silk_TOC           /* O:   Type of content                             */
+    silk_TOC_struct                     *Silk_TOC           /* O:   Type of content                             */
 );
 
 #ifdef __cplusplus
diff --git a/silk/SKP_Silk_CNG.c b/silk/silk_CNG.c
similarity index 86%
rename from silk/SKP_Silk_CNG.c
rename to silk/silk_CNG.c
index 41128ef2..209e2d12 100644
--- a/silk/SKP_Silk_CNG.c
+++ b/silk/silk_CNG.c
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 /* Generates excitation for CNG LPC synthesis */
-SKP_INLINE void SKP_Silk_CNG_exc(
+SKP_INLINE void silk_CNG_exc(
     SKP_int16                       residual[],         /* O    CNG residual signal Q0                      */
     SKP_int32                       exc_buf_Q10[],      /* I    Random samples buffer Q10                   */
     SKP_int32                       Gain_Q16,           /* I    Gain to apply                               */
@@ -55,8 +55,8 @@ SKP_INLINE void SKP_Silk_CNG_exc(
     *rand_seed = seed;
 }
 
-void SKP_Silk_CNG_Reset(
-    SKP_Silk_decoder_state      *psDec              /* I/O  Decoder state                               */
+void silk_CNG_Reset(
+    silk_decoder_state      *psDec              /* I/O  Decoder state                               */
 )
 {
     SKP_int i, NLSF_step_Q15, NLSF_acc_Q15;
@@ -72,9 +72,9 @@ void SKP_Silk_CNG_Reset(
 }
 
 /* Updates CNG estimate, and applies the CNG when packet was lost   */
-void SKP_Silk_CNG(
-    SKP_Silk_decoder_state      *psDec,             /* I/O  Decoder state                               */
-    SKP_Silk_decoder_control    *psDecCtrl,         /* I/O  Decoder control                             */
+void silk_CNG(
+    silk_decoder_state      *psDec,             /* I/O  Decoder state                               */
+    silk_decoder_control    *psDecCtrl,         /* I/O  Decoder control                             */
     SKP_int16                   signal[],           /* I/O  Signal                                      */
     SKP_int                     length              /* I    Length of residual                          */
 )
@@ -83,12 +83,12 @@ void SKP_Silk_CNG(
     SKP_int32 tmp_32, Gain_Q26, max_Gain_Q16;
     SKP_int16 LPC_buf[ MAX_LPC_ORDER ];
     SKP_int16 CNG_sig[ MAX_FRAME_LENGTH ];
-    SKP_Silk_CNG_struct *psCNG;
+    silk_CNG_struct *psCNG;
     psCNG = &psDec->sCNG;
 
     if( psDec->fs_kHz != psCNG->fs_kHz ) {
         /* Reset state */
-        SKP_Silk_CNG_Reset( psDec );
+        silk_CNG_Reset( psDec );
 
         psCNG->fs_kHz = psDec->fs_kHz;
     }
@@ -122,20 +122,20 @@ void SKP_Silk_CNG(
     if( psDec->lossCnt ) {
 
         /* Generate CNG excitation */
-        SKP_Silk_CNG_exc( CNG_sig, psCNG->CNG_exc_buf_Q10, 
+        silk_CNG_exc( CNG_sig, psCNG->CNG_exc_buf_Q10, 
                 psCNG->CNG_smth_Gain_Q16, length, &psCNG->rand_seed );
 
         /* Convert CNG NLSF to filter representation */
-        SKP_Silk_NLSF2A_stable( LPC_buf, psCNG->CNG_smth_NLSF_Q15, psDec->LPC_order );
+        silk_NLSF2A_stable( LPC_buf, psCNG->CNG_smth_NLSF_Q15, psDec->LPC_order );
 
         Gain_Q26 = ( SKP_int32 )1 << 26; /* 1.0 */
         
         /* Generate CNG signal, by synthesis filtering */
         if( psDec->LPC_order == 16 ) {
-            SKP_Silk_LPC_synthesis_order16( CNG_sig, LPC_buf, 
+            silk_LPC_synthesis_order16( CNG_sig, LPC_buf, 
                 Gain_Q26, psCNG->CNG_synth_state, CNG_sig, length );
         } else {
-            SKP_Silk_LPC_synthesis_filter( CNG_sig, LPC_buf, 
+            silk_LPC_synthesis_filter( CNG_sig, LPC_buf, 
                 Gain_Q26, psCNG->CNG_synth_state, CNG_sig, length, psDec->LPC_order );
         }
         /* Mix with signal */
diff --git a/silk/SKP_Silk_HP_variable_cutoff.c b/silk/silk_HP_variable_cutoff.c
similarity index 50%
rename from silk/SKP_Silk_HP_variable_cutoff.c
rename to silk/silk_HP_variable_cutoff.c
index 5e7b5b22..10f6868c 100644
--- a/silk/SKP_Silk_HP_variable_cutoff.c
+++ b/silk/silk_HP_variable_cutoff.c
@@ -25,79 +25,74 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main_FIX.h"
-#include "SKP_Silk_tuning_parameters.h"
-
-#define SKP_RADIANS_CONSTANT_Q19            1482    // 0.45f * 2.0f * 3.14159265359 / 1000
-#define SKP_LOG2_VARIABLE_HP_MIN_FREQ_Q7    809     // log(80) in Q7
+#ifdef FIXED_POINT
+#include "silk_main_FIX.h"
+#else
+#include "silk_main_FLP.h"
+#endif
+#include "silk_tuning_parameters.h"
 
 /* High-pass filter with cutoff frequency adaptation based on pitch lag statistics */
-void SKP_Silk_HP_variable_cutoff(
-    SKP_Silk_encoder_state          *psEncC,        /* I/O  Encoder state                               */
-    SKP_int16                       *out,           /* O    high-pass filtered output signal            */
-    const SKP_int16                 *in,            /* I    input signal                                */
-    const SKP_int                   frame_length    /* I    length of input                             */
+void silk_HP_variable_cutoff(
+    silk_encoder_state_Fxx          state_Fxx[],        /* I/O  Encoder states                          */
+    const SKP_int                   nChannels           /* I    Number of channels                      */
 )
 {
-    SKP_int   quality_Q15;
-	SKP_float pitch_freq_low_Hz;
+    SKP_int   quality_Q15, cutoff_Hz;
     SKP_int32 B_Q28[ 3 ], A_Q28[ 2 ];
     SKP_int32 Fc_Q19, r_Q28, r_Q22;
     SKP_int32 pitch_freq_Hz_Q16, pitch_freq_log_Q7, delta_freq_Q7;
+    silk_encoder_state *psEncC1 = &state_Fxx[ 0 ].sCmn;
 
     /*********************************************/
     /* Estimate Low End of Pitch Frequency Range */
     /*********************************************/
-    if( psEncC->prevSignalType == TYPE_VOICED ) {
+    if( psEncC1->prevSignalType == TYPE_VOICED ) {
         /* difference, in log domain */
-        pitch_freq_Hz_Q16 = SKP_DIV32_16( SKP_LSHIFT( SKP_MUL( psEncC->fs_kHz, 1000 ), 16 ), psEncC->prevLag );
-        pitch_freq_log_Q7 = SKP_Silk_lin2log( pitch_freq_Hz_Q16 ) - ( 16 << 7 ); //0x70
+        pitch_freq_Hz_Q16 = SKP_DIV32_16( SKP_LSHIFT( SKP_MUL( psEncC1->fs_kHz, 1000 ), 16 ), psEncC1->prevLag );
+        pitch_freq_log_Q7 = silk_lin2log( pitch_freq_Hz_Q16 ) - ( 16 << 7 );
 
         /* adjustment based on quality */
-        quality_Q15 = psEncC->input_quality_bands_Q15[ 0 ];
-        pitch_freq_log_Q7 = SKP_SUB32( pitch_freq_log_Q7, SKP_SMULWB( SKP_SMULWB( SKP_LSHIFT( quality_Q15, 2 ), quality_Q15 ), 
-            pitch_freq_log_Q7 - SKP_LOG2_VARIABLE_HP_MIN_FREQ_Q7 ) );
-        pitch_freq_log_Q7 = SKP_ADD32( pitch_freq_log_Q7, SKP_RSHIFT( SKP_FIX_CONST( 0.6, 15 ) - quality_Q15, 9 ) );
+        quality_Q15 = psEncC1->input_quality_bands_Q15[ 0 ];
+        pitch_freq_log_Q7 = SKP_SMLAWB( pitch_freq_log_Q7, SKP_SMULWB( SKP_LSHIFT( -quality_Q15, 2 ), quality_Q15 ), 
+            pitch_freq_log_Q7 - ( silk_lin2log( SILK_FIX_CONST( VARIABLE_HP_MIN_CUTOFF_HZ, 16 ) ) - ( 16 << 7 ) ) );
 
-        //delta_freq = pitch_freq_log - psEnc->variable_HP_smth1;
-        delta_freq_Q7 = pitch_freq_log_Q7 - SKP_RSHIFT( psEncC->variable_HP_smth1_Q15, 8 );
+        /* delta_freq = pitch_freq_log - psEnc->variable_HP_smth1; */
+        delta_freq_Q7 = pitch_freq_log_Q7 - SKP_RSHIFT( psEncC1->variable_HP_smth1_Q15, 8 );
         if( delta_freq_Q7 < 0 ) {
             /* less smoothing for decreasing pitch frequency, to track something close to the minimum */
             delta_freq_Q7 = SKP_MUL( delta_freq_Q7, 3 );
         }
 
-        /* limit delta, to reduce impact of outliers */
-        delta_freq_Q7 = SKP_LIMIT_32( delta_freq_Q7, -SKP_FIX_CONST( VARIABLE_HP_MAX_DELTA_FREQ, 7 ), SKP_FIX_CONST( VARIABLE_HP_MAX_DELTA_FREQ, 7 ) );
+        /* limit delta, to reduce impact of outliers in pitch estimation */
+        delta_freq_Q7 = SKP_LIMIT_32( delta_freq_Q7, -SILK_FIX_CONST( VARIABLE_HP_MAX_DELTA_FREQ, 7 ), SILK_FIX_CONST( VARIABLE_HP_MAX_DELTA_FREQ, 7 ) );
 
         /* update smoother */
-        psEncC->variable_HP_smth1_Q15 = SKP_SMLAWB( psEncC->variable_HP_smth1_Q15, 
-            SKP_MUL( SKP_LSHIFT( psEncC->speech_activity_Q8, 1 ), delta_freq_Q7 ), SKP_FIX_CONST( VARIABLE_HP_SMTH_COEF1, 16 ) );
+        psEncC1->variable_HP_smth1_Q15 = SKP_SMLAWB( psEncC1->variable_HP_smth1_Q15, 
+            SKP_SMULBB( psEncC1->speech_activity_Q8, delta_freq_Q7 ), SILK_FIX_CONST( VARIABLE_HP_SMTH_COEF1, 16 ) );
     }
 
     /* second smoother */
-    psEncC->variable_HP_smth2_Q15 = SKP_SMLAWB( psEncC->variable_HP_smth2_Q15, 
-        psEncC->variable_HP_smth1_Q15 - psEncC->variable_HP_smth2_Q15, SKP_FIX_CONST( VARIABLE_HP_SMTH_COEF2, 16 ) );
+    psEncC1->variable_HP_smth2_Q15 = SKP_SMLAWB( psEncC1->variable_HP_smth2_Q15, 
+        psEncC1->variable_HP_smth1_Q15 - psEncC1->variable_HP_smth2_Q15, SILK_FIX_CONST( VARIABLE_HP_SMTH_COEF2, 16 ) );
 
     /* convert from log scale to Hertz */
-    pitch_freq_low_Hz = SKP_Silk_log2lin( SKP_RSHIFT( psEncC->variable_HP_smth2_Q15, 8 ) );
+    cutoff_Hz = silk_log2lin( SKP_RSHIFT( psEncC1->variable_HP_smth2_Q15, 8 ) );
 
     /* limit frequency range */
-    pitch_freq_low_Hz = SKP_LIMIT_32( pitch_freq_low_Hz, SKP_FIX_CONST( VARIABLE_HP_MIN_FREQ, 0 ), SKP_FIX_CONST( VARIABLE_HP_MAX_FREQ, 0 ) );
+    cutoff_Hz = SKP_LIMIT_32( cutoff_Hz, SILK_FIX_CONST( VARIABLE_HP_MIN_CUTOFF_HZ, 0 ), SILK_FIX_CONST( VARIABLE_HP_MAX_CUTOFF_HZ, 0 ) );
 
     /********************************/
     /* Compute Filter Coefficients  */
     /********************************/
-    /* compute cut-off frequency, in radians */
-    //Fc_num   = (SKP_float)( 0.45f * 2.0f * 3.14159265359 * pitch_freq_low_Hz );
-    //Fc_denom = (SKP_float)( 1e3f * psEncC->fs_kHz );
-    SKP_assert( pitch_freq_low_Hz <= SKP_int32_MAX / SKP_RADIANS_CONSTANT_Q19 );
-    Fc_Q19 = SKP_DIV32_16( SKP_SMULBB( SKP_RADIANS_CONSTANT_Q19, pitch_freq_low_Hz ), psEncC->fs_kHz ); // range: 3704 - 27787, 11-15 bits
-    SKP_assert( Fc_Q19 >=  3704 );
-    SKP_assert( Fc_Q19 <= 27787 );
+    /* compute cut-off frequency, in radians    */
+    /* Fc_num   = 1.5 * 3.14159 * cutoff_Hz     */
+    /* Fc_denom = 1e3f * psEncC1->fs_kHz        */
+    SKP_assert( cutoff_Hz <= SKP_int32_MAX / SILK_FIX_CONST( 1.5 * 3.14159 / 1000, 19 ) );
+    Fc_Q19 = SKP_DIV32_16( SKP_SMULBB( SILK_FIX_CONST( 1.5 * 3.14159 / 1000, 19 ), cutoff_Hz ), psEncC1->fs_kHz );
+    SKP_assert( Fc_Q19 > 0 && Fc_Q19 < 32768 );
 
-    r_Q28 = SKP_FIX_CONST( 1.0, 28 ) - SKP_MUL( SKP_FIX_CONST( 0.92, 9 ), Fc_Q19 );
-    SKP_assert( r_Q28 >= 255347779 );
-    SKP_assert( r_Q28 <= 266690872 );
+    r_Q28 = SILK_FIX_CONST( 1.0, 28 ) - SKP_MUL( SILK_FIX_CONST( 0.92, 9 ), Fc_Q19 );
 
     /* b = r * [ 1; -2; 1 ]; */
     /* a = [ 1; -2 * r * ( 1 - 0.5 * Fc^2 ); r^2 ]; */
@@ -105,13 +100,17 @@ void SKP_Silk_HP_variable_cutoff(
     B_Q28[ 1 ] = SKP_LSHIFT( -r_Q28, 1 );
     B_Q28[ 2 ] = r_Q28;
     
-    // -r * ( 2 - Fc * Fc );
+    /* -r * ( 2 - Fc * Fc ); */
     r_Q22  = SKP_RSHIFT( r_Q28, 6 );
-    A_Q28[ 0 ] = SKP_SMULWW( r_Q22, SKP_SMULWW( Fc_Q19, Fc_Q19 ) - SKP_FIX_CONST( 2.0,  22 ) );
+    A_Q28[ 0 ] = SKP_SMULWW( r_Q22, SKP_SMULWW( Fc_Q19, Fc_Q19 ) - SILK_FIX_CONST( 2.0,  22 ) );
     A_Q28[ 1 ] = SKP_SMULWW( r_Q22, r_Q22 );
 
     /********************************/
     /* High-Pass Filter             */
     /********************************/
-    SKP_Silk_biquad_alt( in, B_Q28, A_Q28, psEncC->In_HP_State, out, frame_length );
+    silk_biquad_alt( psEncC1->inputBuf, B_Q28, A_Q28, psEncC1->In_HP_State, psEncC1->inputBuf, psEncC1->frame_length );
+    if( nChannels == 2 ) {
+        silk_biquad_alt( state_Fxx[ 1 ].sCmn.inputBuf, B_Q28, A_Q28, state_Fxx[ 1 ].sCmn.In_HP_State, 
+            state_Fxx[ 1 ].sCmn.inputBuf, state_Fxx[ 1 ].sCmn.frame_length );
+    }
 }
diff --git a/silk/SKP_Silk_Inlines.h b/silk/silk_Inlines.h
similarity index 76%
rename from silk/SKP_Silk_Inlines.h
rename to silk/silk_Inlines.h
index 49c69e58..5df42de8 100644
--- a/silk/SKP_Silk_Inlines.h
+++ b/silk/silk_Inlines.h
@@ -25,12 +25,12 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*! \file SKP_Silk_Inlines.h
- *  \brief SKP_Silk_Inlines.h defines inline signal processing functions.
+/*! \file silk_Inlines.h
+ *  \brief silk_Inlines.h defines inline signal processing functions.
  */
 
-#ifndef _SKP_SILK_FIX_INLINES_H_
-#define _SKP_SILK_FIX_INLINES_H_
+#ifndef _SILK_FIX_INLINES_H_
+#define _SILK_FIX_INLINES_H_
 
 #ifdef  __cplusplus
 extern "C"
@@ -38,35 +38,35 @@ extern "C"
 #endif
 
 /* count leading zeros of SKP_int64 */
-SKP_INLINE SKP_int32 SKP_Silk_CLZ64(SKP_int64 in)
+SKP_INLINE SKP_int32 silk_CLZ64(SKP_int64 in)
 {
     SKP_int32 in_upper;
 
     in_upper = (SKP_int32)SKP_RSHIFT64(in, 32);
     if (in_upper == 0) {
         /* Search in the lower 32 bits */
-        return 32 + SKP_Silk_CLZ32( (SKP_int32) in );
+        return 32 + silk_CLZ32( (SKP_int32) in );
     } else {
         /* Search in the upper 32 bits */
-        return SKP_Silk_CLZ32( in_upper );
+        return silk_CLZ32( in_upper );
     }
 }
 
 /* get number of leading zeros and fractional part (the bits right after the leading one */
-SKP_INLINE void SKP_Silk_CLZ_FRAC(SKP_int32 in,            /* I: input */
+SKP_INLINE void silk_CLZ_FRAC(SKP_int32 in,            /* I: input */
                                     SKP_int32 *lz,           /* O: number of leading zeros */
                                     SKP_int32 *frac_Q7)      /* O: the 7 bits right after the leading one */
 {
-    SKP_int32 lzeros = SKP_Silk_CLZ32(in);
+    SKP_int32 lzeros = silk_CLZ32(in);
 
     * lz = lzeros;
-    * frac_Q7 = SKP_ROR32(in, 24 - lzeros) & 0x7f;
+    * frac_Q7 = silk_ROR32(in, 24 - lzeros) & 0x7f;
 }
 
 /* Approximation of square root                                          */
 /* Accuracy: < +/- 10%  for output values > 15                           */
 /*           < +/- 2.5% for output values > 120                          */
-SKP_INLINE SKP_int32 SKP_Silk_SQRT_APPROX(SKP_int32 x)
+SKP_INLINE SKP_int32 silk_SQRT_APPROX(SKP_int32 x)
 {
     SKP_int32 y, lz, frac_Q7;
 
@@ -74,7 +74,7 @@ SKP_INLINE SKP_int32 SKP_Silk_SQRT_APPROX(SKP_int32 x)
         return 0;
     }
 
-    SKP_Silk_CLZ_FRAC(x, &lz, &frac_Q7);
+    silk_CLZ_FRAC(x, &lz, &frac_Q7);
 
     if( lz & 1 ) {
         y = 32768;
@@ -91,35 +91,8 @@ SKP_INLINE SKP_int32 SKP_Silk_SQRT_APPROX(SKP_int32 x)
     return y;
 }
 
-/* returns the number of left shifts before overflow for a 16 bit number (ITU definition with norm(0)=0) */
-SKP_INLINE SKP_int32 SKP_Silk_norm16(SKP_int16 a) {
-
-  SKP_int32 a32;
-
-  /* if ((a == 0) || (a == SKP_int16_MIN)) return(0); */
-  if ((a << 1) == 0) return(0);
-
-  a32 = a;
-  /* if (a32 < 0) a32 = -a32 - 1; */
-  a32 ^= SKP_RSHIFT(a32, 31);
-
-  return SKP_Silk_CLZ32(a32) - 17;
-}
-
-/* returns the number of left shifts before overflow for a 32 bit number (ITU definition with norm(0)=0) */
-SKP_INLINE SKP_int32 SKP_Silk_norm32(SKP_int32 a) {
-  
-  /* if ((a == 0) || (a == SKP_int32_MIN)) return(0); */
-  if ((a << 1) == 0) return(0);
-
-  /* if (a < 0) a = -a - 1; */
-  a ^= SKP_RSHIFT(a, 31);
-
-  return SKP_Silk_CLZ32(a) - 1;
-}
-
 /* Divide two int32 values and return result as int32 in a given Q-domain */
-SKP_INLINE SKP_int32 SKP_DIV32_varQ(    /* O    returns a good approximation of "(a32 << Qres) / b32" */
+SKP_INLINE SKP_int32 silk_DIV32_varQ(    /* O    returns a good approximation of "(a32 << Qres) / b32" */
     const SKP_int32     a32,            /* I    numerator (Q0)                  */
     const SKP_int32     b32,            /* I    denominator (Q0)                */
     const SKP_int       Qres            /* I    Q-domain of result (>= 0)       */
@@ -132,9 +105,9 @@ SKP_INLINE SKP_int32 SKP_DIV32_varQ(    /* O    returns a good approximation of
     SKP_assert( Qres >= 0 );
 
     /* Compute number of bits head room and normalize inputs */
-    a_headrm = SKP_Silk_CLZ32( SKP_abs(a32) ) - 1;
+    a_headrm = silk_CLZ32( SKP_abs(a32) ) - 1;
     a32_nrm = SKP_LSHIFT(a32, a_headrm);                                    /* Q: a_headrm                    */
-    b_headrm = SKP_Silk_CLZ32( SKP_abs(b32) ) - 1;
+    b_headrm = silk_CLZ32( SKP_abs(b32) ) - 1;
     b32_nrm = SKP_LSHIFT(b32, b_headrm);                                    /* Q: b_headrm                    */
 
     /* Inverse of b32, with 14 bits of precision */
@@ -164,7 +137,7 @@ SKP_INLINE SKP_int32 SKP_DIV32_varQ(    /* O    returns a good approximation of
 }
 
 /* Invert int32 value and return result as int32 in a given Q-domain */
-SKP_INLINE SKP_int32 SKP_INVERSE32_varQ(    /* O    returns a good approximation of "(1 << Qres) / b32" */
+SKP_INLINE SKP_int32 silk_INVERSE32_varQ(    /* O    returns a good approximation of "(1 << Qres) / b32" */
     const SKP_int32     b32,                /* I    denominator (Q0)                */
     const SKP_int       Qres                /* I    Q-domain of result (> 0)        */
 )
@@ -176,7 +149,7 @@ SKP_INLINE SKP_int32 SKP_INVERSE32_varQ(    /* O    returns a good approximation
     SKP_assert( Qres > 0 );
 
     /* Compute number of bits head room and normalize input */
-    b_headrm = SKP_Silk_CLZ32( SKP_abs(b32) ) - 1;
+    b_headrm = silk_CLZ32( SKP_abs(b32) ) - 1;
     b32_nrm = SKP_LSHIFT(b32, b_headrm);                                    /* Q: b_headrm                */
 
     /* Inverse of b32, with 14 bits of precision */
@@ -209,4 +182,4 @@ SKP_INLINE SKP_int32 SKP_INVERSE32_varQ(    /* O    returns a good approximation
 }
 #endif
 
-#endif //_SKP_SILK_FIX_INLINES_H_
+#endif //_SILK_FIX_INLINES_H_
diff --git a/silk/SKP_Silk_LPC_analysis_filter.c b/silk/silk_LPC_analysis_filter.c
similarity index 96%
rename from silk/SKP_Silk_LPC_analysis_filter.c
rename to silk/silk_LPC_analysis_filter.c
index ba9475b4..b3f9ad75 100644
--- a/silk/SKP_Silk_LPC_analysis_filter.c
+++ b/silk/silk_LPC_analysis_filter.c
@@ -25,7 +25,7 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
 /*******************************************/
 /* LPC analysis filter                     */
@@ -34,7 +34,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /* first Order output samples are not set  */
 /*******************************************/
 
-void SKP_Silk_LPC_analysis_filter(
+void silk_LPC_analysis_filter(
     SKP_int16            *out,           /* O:   Output signal                               */
     const SKP_int16      *in,            /* I:   Input signal                                */
     const SKP_int16      *B,             /* I:   MA prediction coefficients, Q12 [order]     */
diff --git a/silk/SKP_Silk_LPC_inv_pred_gain.c b/silk/silk_LPC_inv_pred_gain.c
similarity index 80%
rename from silk/SKP_Silk_LPC_inv_pred_gain.c
rename to silk/silk_LPC_inv_pred_gain.c
index 06aaa198..08575d71 100644
--- a/silk/SKP_Silk_LPC_inv_pred_gain.c
+++ b/silk/silk_LPC_inv_pred_gain.c
@@ -25,24 +25,16 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*                                                                      *
- * SKP_Silk_LPC_inverse_pred_gain.c                                   *
- *                                                                      *
- * Compute inverse of LPC prediction gain, and                          *
- * test if LPC coefficients are stable (all poles within unit circle)   *
- *                                                                      *
- * Copyright 2008 (c), Skype Limited                                    *
- *                                                                      */
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
 #define QA          16
-#define A_LIMIT     SKP_FIX_CONST( 0.99975, QA )
+#define A_LIMIT     SILK_FIX_CONST( 0.99975, QA )
 
 /* Compute inverse of LPC prediction gain, and                          */
 /* test if LPC coefficients are stable (all poles within unit circle)   */
 static SKP_int LPC_inverse_pred_gain_QA(        /* O:   Returns 1 if unstable, otherwise 0          */
     SKP_int32           *invGain_Q30,           /* O:   Inverse prediction gain, Q30 energy domain  */
-    SKP_int32           A_QA[ 2 ][ SKP_Silk_MAX_ORDER_LPC ],         
+    SKP_int32           A_QA[ 2 ][ SILK_MAX_ORDER_LPC ],         
                                                 /* I:   Prediction coefficients                     */
     const SKP_int       order                   /* I:   Prediction order                            */
 )
@@ -69,7 +61,7 @@ static SKP_int LPC_inverse_pred_gain_QA(        /* O:   Returns 1 if unstable, o
         SKP_assert( rc_mult1_Q30 < ( 1 << 30 ) );
 
         /* rc_mult2_Q16 range: [ 2^16 : SKP_int32_MAX ] */
-        rc_mult2_Q16 = SKP_INVERSE32_varQ( rc_mult1_Q30, 46 );      /* 16 = 46 - 30 */
+        rc_mult2_Q16 = silk_INVERSE32_varQ( rc_mult1_Q30, 46 );      /* 16 = 46 - 30 */
 
         /* Update inverse gain */
         /* invGain_Q30 range: [ 0 : 2^30 ] */
@@ -82,7 +74,7 @@ static SKP_int LPC_inverse_pred_gain_QA(        /* O:   Returns 1 if unstable, o
         Anew_QA = A_QA[ k & 1 ];
         
         /* Update AR coefficient */
-        headrm = SKP_Silk_CLZ32( rc_mult2_Q16 ) - 1;
+        headrm = silk_CLZ32( rc_mult2_Q16 ) - 1;
         rc_mult2_Q16 = SKP_LSHIFT( rc_mult2_Q16, headrm );          /* Q: 16 + headrm */
         for( n = 0; n < k; n++ ) {
             tmp_QA = Aold_QA[ n ] - SKP_LSHIFT( SKP_SMMUL( Aold_QA[ k - n - 1 ], rc_Q31 ), 1 );
@@ -111,14 +103,14 @@ static SKP_int LPC_inverse_pred_gain_QA(        /* O:   Returns 1 if unstable, o
 }
 
 /* For input in Q12 domain */
-SKP_int SKP_Silk_LPC_inverse_pred_gain(       /* O:   Returns 1 if unstable, otherwise 0          */
+SKP_int silk_LPC_inverse_pred_gain(       /* O:   Returns 1 if unstable, otherwise 0          */
     SKP_int32           *invGain_Q30,           /* O:   Inverse prediction gain, Q30 energy domain  */
     const SKP_int16     *A_Q12,                 /* I:   Prediction coefficients, Q12 [order]        */
     const SKP_int       order                   /* I:   Prediction order                            */
 )
 {
     SKP_int   k;
-    SKP_int32 Atmp_QA[ 2 ][ SKP_Silk_MAX_ORDER_LPC ];
+    SKP_int32 Atmp_QA[ 2 ][ SILK_MAX_ORDER_LPC ];
     SKP_int32 *Anew_QA;
 
     Anew_QA = Atmp_QA[ order & 1 ];
@@ -132,14 +124,14 @@ SKP_int SKP_Silk_LPC_inverse_pred_gain(       /* O:   Returns 1 if unstable, oth
 }
 
 /* For input in Q13 domain */
-SKP_int SKP_Silk_LPC_inverse_pred_gain_Q13(   /* O:   Returns 1 if unstable, otherwise 0          */
+SKP_int silk_LPC_inverse_pred_gain_Q13(   /* O:   Returns 1 if unstable, otherwise 0          */
     SKP_int32           *invGain_Q30,           /* O:   Inverse prediction gain, Q30 energy domain  */
     const SKP_int16     *A_Q13,                 /* I:   Prediction coefficients, Q13 [order]        */
     const SKP_int       order                   /* I:   Prediction order                            */
 )
 {
     SKP_int   k;
-    SKP_int32 Atmp_QA[ 2 ][ SKP_Silk_MAX_ORDER_LPC ];
+    SKP_int32 Atmp_QA[ 2 ][ SILK_MAX_ORDER_LPC ];
     SKP_int32 *Anew_QA;
 
     Anew_QA = Atmp_QA[ order & 1 ];
@@ -153,14 +145,14 @@ SKP_int SKP_Silk_LPC_inverse_pred_gain_Q13(   /* O:   Returns 1 if unstable, oth
 }
 
 /* For input in Q24 domain */
-SKP_int SKP_Silk_LPC_inverse_pred_gain_Q24(   /* O:   Returns 1 if unstable, otherwise 0          */
+SKP_int silk_LPC_inverse_pred_gain_Q24(   /* O:   Returns 1 if unstable, otherwise 0          */
     SKP_int32           *invGain_Q30,           /* O:   Inverse prediction gain, Q30 energy domain  */
     const SKP_int32     *A_Q24,                 /* I:   Prediction coefficients, Q24 [order]        */
     const SKP_int       order                   /* I:   Prediction order                            */
 )
 {
     SKP_int   k;
-    SKP_int32 Atmp_QA[ 2 ][ SKP_Silk_MAX_ORDER_LPC ];
+    SKP_int32 Atmp_QA[ 2 ][ SILK_MAX_ORDER_LPC ];
     SKP_int32 *Anew_QA;
 
     Anew_QA = Atmp_QA[ order & 1 ];
diff --git a/silk/SKP_Silk_LPC_stabilize.c b/silk/silk_LPC_stabilize.c
similarity index 90%
rename from silk/SKP_Silk_LPC_stabilize.c
rename to silk/silk_LPC_stabilize.c
index 3dd58470..ca1a1154 100644
--- a/silk/SKP_Silk_LPC_stabilize.c
+++ b/silk/silk_LPC_stabilize.c
@@ -25,13 +25,13 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_typedef.h"
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_typedef.h"
+#include "silk_SigProc_FIX.h"
 
 #define LPC_STABILIZE_LPC_MAX_ABS_VALUE_Q16     ( ( (SKP_int32)SKP_int16_MAX ) << 4 )
 
 /* LPC stabilizer, for a single input data vector */
-void SKP_Silk_LPC_stabilize(
+void silk_LPC_stabilize(
     SKP_int16       *a_Q12,         /* O    stabilized LPC vector [L]                       */
     SKP_int32       *a_Q16,         /* I    LPC vector [L]                                  */
     const SKP_int32  bwe_Q16,       /* I    Bandwidth expansion factor                      */
@@ -42,7 +42,7 @@ void SKP_Silk_LPC_stabilize(
     SKP_int     i, idx = 0;
     SKP_int32   invGain_Q30;
 
-    SKP_Silk_bwexpander_32( a_Q16, L, bwe_Q16 );
+    silk_bwexpander_32( a_Q16, L, bwe_Q16 );
 
     /***************************/
     /* Limit range of the LPCs */
@@ -66,7 +66,7 @@ void SKP_Silk_LPC_stabilize(
             sc_Q16 = SKP_DIV32( sc_Q16, idx + 1 );
             sc_Q16 = 65536 - sc_Q16;
             sc_Q16 = SKP_LSHIFT( SKP_SMULWB( sc_Q16, 32604 ), 1 ); // 0.995 in Q16
-            SKP_Silk_bwexpander_32( a_Q16, L, sc_Q16 );
+            silk_bwexpander_32( a_Q16, L, sc_Q16 );
         } else {
             break;
         }
@@ -80,12 +80,12 @@ void SKP_Silk_LPC_stabilize(
     /**********************/
     /* Ensure stable LPCs */
     /**********************/
-    while( SKP_Silk_LPC_inverse_pred_gain( &invGain_Q30, a_Q12, L ) == 1 ) {
-        SKP_Silk_bwexpander( a_Q12, L, 65339 ); // 0.997 in Q16
+    while( silk_LPC_inverse_pred_gain( &invGain_Q30, a_Q12, L ) == 1 ) {
+        silk_bwexpander( a_Q12, L, 65339 ); // 0.997 in Q16
     }
 }
 
-void SKP_Silk_LPC_fit(
+void silk_LPC_fit(
     SKP_int16       *a_QQ,          /* O    Stabilized LPC vector, Q(24-rshift) [L]         */
     SKP_int32       *a_Q24,         /* I    LPC vector [L]                                  */
     const SKP_int    QQ,            /* I    Q domain of output LPC vector                   */
@@ -119,7 +119,7 @@ void SKP_Silk_LPC_fit(
             maxabs = SKP_min( maxabs, 98369 ); // ( SKP_int32_MAX / ( 65470 >> 2 ) ) + SKP_int16_MAX = 98369
             sc_Q16 = 65470 - SKP_DIV32( SKP_MUL( 65470 >> 2, maxabs - SKP_int16_MAX ), 
                                         SKP_RSHIFT32( SKP_MUL( maxabs, idx + 1), 2 ) );
-            SKP_Silk_bwexpander_32( a_Q24, L, sc_Q16 );
+            silk_bwexpander_32( a_Q24, L, sc_Q16 );
         } else {
             break;
         }
diff --git a/silk/SKP_Silk_LPC_synthesis_filter.c b/silk/silk_LPC_synthesis_filter.c
similarity index 94%
rename from silk/SKP_Silk_LPC_synthesis_filter.c
rename to silk/silk_LPC_synthesis_filter.c
index e5f8d24a..5f95a180 100644
--- a/silk/SKP_Silk_LPC_synthesis_filter.c
+++ b/silk/silk_LPC_synthesis_filter.c
@@ -26,15 +26,15 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
 /*                                                                      *
- * SKP_Silk_LPC_synthesis_filter.c                                    *
+ * silk_LPC_synthesis_filter.c                                    *
  * Coefficients are in Q12                                              *
  *                                                                      *
  * even order AR filter                                                 *
  *                                                                      */
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
 /* even order AR filter */
-void SKP_Silk_LPC_synthesis_filter(
+void silk_LPC_synthesis_filter(
     const SKP_int16 *in,        /* I:   excitation signal */
     const SKP_int16 *A_Q12,     /* I:   AR coefficients [Order], between -8_Q0 and 8_Q0 */
     const SKP_int32 Gain_Q26,   /* I:   gain */
diff --git a/silk/SKP_Silk_LPC_synthesis_order16.c b/silk/silk_LPC_synthesis_order16.c
similarity index 94%
rename from silk/SKP_Silk_LPC_synthesis_order16.c
rename to silk/silk_LPC_synthesis_order16.c
index 82d8afd9..f35b9a95 100644
--- a/silk/SKP_Silk_LPC_synthesis_order16.c
+++ b/silk/silk_LPC_synthesis_order16.c
@@ -26,15 +26,15 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
 /*                                                                      *
- * SKP_Silk_LPC_synthesis_order16.c                                   *
+ * silk_LPC_synthesis_order16.c                                   *
  * Coefficients are in Q12                                              *
  *                                                                      *
  * 16th order AR filter                                                 *
  *                                                                      */
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
 /* 16th order AR filter */
-void SKP_Silk_LPC_synthesis_order16(const SKP_int16 *in,          /* I:   excitation signal */
+void silk_LPC_synthesis_order16(const SKP_int16 *in,          /* I:   excitation signal */
                                       const SKP_int16 *A_Q12,       /* I:   AR coefficients [16], between -8_Q0 and 8_Q0 */
                                       const SKP_int32 Gain_Q26,     /* I:   gain */
                                       SKP_int32 *S,                 /* I/O: state vector [16] */
diff --git a/silk/SKP_Silk_LP_variable_cutoff.c b/silk/silk_LP_variable_cutoff.c
similarity index 72%
rename from silk/SKP_Silk_LP_variable_cutoff.c
rename to silk/silk_LP_variable_cutoff.c
index 7654c50b..61659790 100644
--- a/silk/SKP_Silk_LP_variable_cutoff.c
+++ b/silk/silk_LP_variable_cutoff.c
@@ -32,10 +32,10 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
         [0.95 : 0.15 : 0.35] normalized cut off frequencies.
 
 */
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 /* Helper function, interpolates the filter taps */
-SKP_INLINE void SKP_Silk_LP_interpolate_filter_taps( 
+SKP_INLINE void silk_LP_interpolate_filter_taps( 
     SKP_int32           B_Q28[ TRANSITION_NB ], 
     SKP_int32           A_Q28[ TRANSITION_NA ],
     const SKP_int       ind,
@@ -50,16 +50,16 @@ SKP_INLINE void SKP_Silk_LP_interpolate_filter_taps(
                 /* Piece-wise linear interpolation of B and A */
                 for( nb = 0; nb < TRANSITION_NB; nb++ ) {
                     B_Q28[ nb ] = SKP_SMLAWB(
-                        SKP_Silk_Transition_LP_B_Q28[ ind     ][ nb ],
-                        SKP_Silk_Transition_LP_B_Q28[ ind + 1 ][ nb ] -
-                        SKP_Silk_Transition_LP_B_Q28[ ind     ][ nb ],
+                        silk_Transition_LP_B_Q28[ ind     ][ nb ],
+                        silk_Transition_LP_B_Q28[ ind + 1 ][ nb ] -
+                        silk_Transition_LP_B_Q28[ ind     ][ nb ],
                         fac_Q16 );
                 }
                 for( na = 0; na < TRANSITION_NA; na++ ) {
                     A_Q28[ na ] = SKP_SMLAWB(
-                        SKP_Silk_Transition_LP_A_Q28[ ind     ][ na ],
-                        SKP_Silk_Transition_LP_A_Q28[ ind + 1 ][ na ] -
-                        SKP_Silk_Transition_LP_A_Q28[ ind     ][ na ],
+                        silk_Transition_LP_A_Q28[ ind     ][ na ],
+                        silk_Transition_LP_A_Q28[ ind + 1 ][ na ] -
+                        silk_Transition_LP_A_Q28[ ind     ][ na ],
                         fac_Q16 );
                 }
             } else { /* ( fac_Q16 - ( 1 << 16 ) ) is in range of a 16-bit int */
@@ -67,26 +67,26 @@ SKP_INLINE void SKP_Silk_LP_interpolate_filter_taps(
                 /* Piece-wise linear interpolation of B and A */
                 for( nb = 0; nb < TRANSITION_NB; nb++ ) {
                     B_Q28[ nb ] = SKP_SMLAWB(
-                        SKP_Silk_Transition_LP_B_Q28[ ind + 1 ][ nb ],
-                        SKP_Silk_Transition_LP_B_Q28[ ind + 1 ][ nb ] -
-                        SKP_Silk_Transition_LP_B_Q28[ ind     ][ nb ],
+                        silk_Transition_LP_B_Q28[ ind + 1 ][ nb ],
+                        silk_Transition_LP_B_Q28[ ind + 1 ][ nb ] -
+                        silk_Transition_LP_B_Q28[ ind     ][ nb ],
                         fac_Q16 - ( 1 << 16 ) );
                 }
                 for( na = 0; na < TRANSITION_NA; na++ ) {
                     A_Q28[ na ] = SKP_SMLAWB(
-                        SKP_Silk_Transition_LP_A_Q28[ ind + 1 ][ na ],
-                        SKP_Silk_Transition_LP_A_Q28[ ind + 1 ][ na ] -
-                        SKP_Silk_Transition_LP_A_Q28[ ind     ][ na ],
+                        silk_Transition_LP_A_Q28[ ind + 1 ][ na ],
+                        silk_Transition_LP_A_Q28[ ind + 1 ][ na ] -
+                        silk_Transition_LP_A_Q28[ ind     ][ na ],
                         fac_Q16 - ( 1 << 16 ) );
                 }
             }
         } else {
-            SKP_memcpy( B_Q28, SKP_Silk_Transition_LP_B_Q28[ ind ], TRANSITION_NB * sizeof( SKP_int32 ) );
-            SKP_memcpy( A_Q28, SKP_Silk_Transition_LP_A_Q28[ ind ], TRANSITION_NA * sizeof( SKP_int32 ) );
+            SKP_memcpy( B_Q28, silk_Transition_LP_B_Q28[ ind ], TRANSITION_NB * sizeof( SKP_int32 ) );
+            SKP_memcpy( A_Q28, silk_Transition_LP_A_Q28[ ind ], TRANSITION_NA * sizeof( SKP_int32 ) );
         }
     } else {
-        SKP_memcpy( B_Q28, SKP_Silk_Transition_LP_B_Q28[ TRANSITION_INT_NUM - 1 ], TRANSITION_NB * sizeof( SKP_int32 ) );
-        SKP_memcpy( A_Q28, SKP_Silk_Transition_LP_A_Q28[ TRANSITION_INT_NUM - 1 ], TRANSITION_NA * sizeof( SKP_int32 ) );
+        SKP_memcpy( B_Q28, silk_Transition_LP_B_Q28[ TRANSITION_INT_NUM - 1 ], TRANSITION_NB * sizeof( SKP_int32 ) );
+        SKP_memcpy( A_Q28, silk_Transition_LP_A_Q28[ TRANSITION_INT_NUM - 1 ], TRANSITION_NA * sizeof( SKP_int32 ) );
     }
 }
 
@@ -94,8 +94,8 @@ SKP_INLINE void SKP_Silk_LP_interpolate_filter_taps(
 /* piece-wise linear interpolation between elliptic filters */
 /* Start by setting psEncC->mode <> 0;                      */
 /* Deactivate by setting psEncC->mode = 0;                  */
-void SKP_Silk_LP_variable_cutoff(
-    SKP_Silk_LP_state           *psLP,              /* I/O  LP filter state                             */
+void silk_LP_variable_cutoff(
+    silk_LP_state           *psLP,              /* I/O  LP filter state                             */
     SKP_int16                   *signal,            /* I/O  Low-pass filtered output signal             */
     const SKP_int               frame_length        /* I    Frame length                                */
 )
@@ -120,13 +120,13 @@ void SKP_Silk_LP_variable_cutoff(
         SKP_assert( ind < TRANSITION_INT_NUM );
 
         /* Interpolate filter coefficients */
-        SKP_Silk_LP_interpolate_filter_taps( B_Q28, A_Q28, ind, fac_Q16 );
+        silk_LP_interpolate_filter_taps( B_Q28, A_Q28, ind, fac_Q16 );
 
         /* Update transition frame number for next frame */
         psLP->transition_frame_no = SKP_LIMIT( psLP->transition_frame_no + psLP->mode, 0, TRANSITION_FRAMES );
 
         /* ARMA low-pass filtering */
         SKP_assert( TRANSITION_NB == 3 && TRANSITION_NA == 2 );
-        SKP_Silk_biquad_alt( signal, B_Q28, A_Q28, psLP->In_LP_State, signal, frame_length );
+        silk_biquad_alt( signal, B_Q28, A_Q28, psLP->In_LP_State, signal, frame_length );
     }
 }
diff --git a/silk/SKP_Silk_MacroCount.h b/silk/silk_MacroCount.h
similarity index 100%
rename from silk/SKP_Silk_MacroCount.h
rename to silk/silk_MacroCount.h
diff --git a/silk/SKP_Silk_MacroDebug.h b/silk/silk_MacroDebug.h
similarity index 100%
rename from silk/SKP_Silk_MacroDebug.h
rename to silk/silk_MacroDebug.h
diff --git a/silk/SKP_Silk_NLSF2A.c b/silk/silk_NLSF2A.c
similarity index 87%
rename from silk/SKP_Silk_NLSF2A.c
rename to silk/silk_NLSF2A.c
index b8b04ca5..21251cf7 100644
--- a/silk/SKP_Silk_NLSF2A.c
+++ b/silk/silk_NLSF2A.c
@@ -29,12 +29,13 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /* order should be even                                         */
 /* a piecewise linear approximation maps LSF <-> cos(LSF)       */
 /* therefore the result is not accurate LSFs, but the two       */
-/* function are accurate inverses of each other                 */
+/* functions are accurate inverses of each other                */
 
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
+#include "silk_tables.h"
 
 /* helper function for NLSF2A(..) */
-SKP_INLINE void SKP_Silk_NLSF2A_find_poly(
+SKP_INLINE void silk_NLSF2A_find_poly(
     SKP_int32          *out,      /* o    intermediate polynomial, Q20            */
     const SKP_int32    *cLSF,     /* i    vector of interleaved 2*cos(LSFs), Q20  */
     SKP_int            dd         /* i    polynomial order (= 1/2 * filter order) */
@@ -56,20 +57,20 @@ SKP_INLINE void SKP_Silk_NLSF2A_find_poly(
 }
 
 /* compute whitening filter coefficients from normalized line spectral frequencies */
-void SKP_Silk_NLSF2A(
+void silk_NLSF2A(
     SKP_int16        *a,              /* o    monic whitening filter coefficients in Q12,  [d]    */
     const SKP_int16  *NLSF,           /* i    normalized line spectral frequencies in Q15, [d]    */
     const SKP_int    d                /* i    filter order (should be even)                       */
 )
 {
     SKP_int k, i, dd;
-    SKP_int32 cos_LSF_Q20[SKP_Silk_MAX_ORDER_LPC];
-    SKP_int32 P[SKP_Silk_MAX_ORDER_LPC/2+1], Q[SKP_Silk_MAX_ORDER_LPC/2+1];
+    SKP_int32 cos_LSF_Q20[SILK_MAX_ORDER_LPC];
+    SKP_int32 P[SILK_MAX_ORDER_LPC/2+1], Q[SILK_MAX_ORDER_LPC/2+1];
     SKP_int32 Ptmp, Qtmp;
     SKP_int32 f_int;
     SKP_int32 f_frac;
     SKP_int32 cos_val, delta;
-    SKP_int32 a_int32[SKP_Silk_MAX_ORDER_LPC];
+    SKP_int32 a_int32[SILK_MAX_ORDER_LPC];
     SKP_int32 maxabs, absval, idx=0, sc_Q16; 
 
     SKP_assert( LSF_COS_TAB_SZ_FIX == 128 );
@@ -89,8 +90,8 @@ void SKP_Silk_NLSF2A(
         SKP_assert(f_int < LSF_COS_TAB_SZ_FIX );
 
         /* Read start and end value from table */
-        cos_val = SKP_Silk_LSFCosTab_FIX_Q12[ f_int ];                /* Q12 */
-        delta   = SKP_Silk_LSFCosTab_FIX_Q12[ f_int + 1 ] - cos_val;  /* Q12, with a range of 0..200 */
+        cos_val = silk_LSFCosTab_FIX_Q12[ f_int ];                /* Q12 */
+        delta   = silk_LSFCosTab_FIX_Q12[ f_int + 1 ] - cos_val;  /* Q12, with a range of 0..200 */
 
         /* Linear interpolation */
         cos_LSF_Q20[k] = SKP_LSHIFT( cos_val, 8 ) + SKP_MUL( delta, f_frac ); /* Q20 */
@@ -99,8 +100,8 @@ void SKP_Silk_NLSF2A(
     dd = SKP_RSHIFT( d, 1 );
 
     /* generate even and odd polynomials using convolution */
-    SKP_Silk_NLSF2A_find_poly( P, &cos_LSF_Q20[0], dd );
-    SKP_Silk_NLSF2A_find_poly( Q, &cos_LSF_Q20[1], dd );
+    silk_NLSF2A_find_poly( P, &cos_LSF_Q20[0], dd );
+    silk_NLSF2A_find_poly( Q, &cos_LSF_Q20[1], dd );
 
     /* convert even and odd polynomials to SKP_int32 Q12 filter coefs */
     for( k = 0; k < dd; k++ ) {
@@ -130,7 +131,7 @@ void SKP_Silk_NLSF2A(
             maxabs = SKP_min( maxabs, 98369 ); // ( SKP_int32_MAX / ( 65470 >> 2 ) ) + SKP_int16_MAX = 98369 
             sc_Q16 = 65470 - SKP_DIV32( SKP_MUL( 65470 >> 2, maxabs - SKP_int16_MAX ), 
                                         SKP_RSHIFT32( SKP_MUL( maxabs, idx + 1), 2 ) );
-            SKP_Silk_bwexpander_32( a_int32, d, sc_Q16 );
+            silk_bwexpander_32( a_int32, d, sc_Q16 );
         } else {
             break;
         }
diff --git a/silk/SKP_Silk_NLSF2A_stable.c b/silk/silk_NLSF2A_stable.c
similarity index 87%
rename from silk/SKP_Silk_NLSF2A_stable.c
rename to silk/silk_NLSF2A_stable.c
index f4de4b43..b4b59ba1 100644
--- a/silk/SKP_Silk_NLSF2A_stable.c
+++ b/silk/silk_NLSF2A_stable.c
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 /* Convert NLSF parameters to stable AR prediction filter coefficients */
-void SKP_Silk_NLSF2A_stable(
+void silk_NLSF2A_stable(
     SKP_int16                       pAR_Q12[ MAX_LPC_ORDER ],   /* O    Stabilized AR coefs [LPC_order]     */ 
     const SKP_int16                 pNLSF[ MAX_LPC_ORDER ],     /* I    NLSF vector         [LPC_order]     */
     const SKP_int                   LPC_order                   /* I    LPC/LSF order                       */
@@ -37,12 +37,12 @@ void SKP_Silk_NLSF2A_stable(
     SKP_int   i;
     SKP_int32 invGain_Q30;
 
-    SKP_Silk_NLSF2A( pAR_Q12, pNLSF, LPC_order );
+    silk_NLSF2A( pAR_Q12, pNLSF, LPC_order );
 
     /* Ensure stable LPCs */
     for( i = 0; i < MAX_LPC_STABILIZE_ITERATIONS; i++ ) {
-        if( SKP_Silk_LPC_inverse_pred_gain( &invGain_Q30, pAR_Q12, LPC_order ) == 1 ) {
-            SKP_Silk_bwexpander( pAR_Q12, LPC_order, 65536 - SKP_SMULBB( 10 + i, i ) );		/* 10_Q16 = 0.00015 */
+        if( silk_LPC_inverse_pred_gain( &invGain_Q30, pAR_Q12, LPC_order ) == 1 ) {
+            silk_bwexpander( pAR_Q12, LPC_order, 65536 - SKP_SMULBB( 10 + i, i ) );		/* 10_Q16 = 0.00015 */
         } else {
             break;
         }
diff --git a/silk/SKP_Silk_NLSF_VQ.c b/silk/silk_NLSF_VQ.c
similarity index 96%
rename from silk/SKP_Silk_NLSF_VQ.c
rename to silk/silk_NLSF_VQ.c
index 47e9cfe7..caecbcfb 100644
--- a/silk/SKP_Silk_NLSF_VQ.c
+++ b/silk/silk_NLSF_VQ.c
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 /* Compute quantization errors for an LPC_order element input vector for a VQ codebook */
-void SKP_Silk_NLSF_VQ(
+void silk_NLSF_VQ(
     SKP_int32                   err_Q26[],              /* O    Quantization errors [K]                     */
     const SKP_int16             in_Q15[],               /* I    Input vectors to be quantized [LPC_order]   */
     const SKP_uint8             pCB_Q8[],               /* I    Codebook vectors [K*LPC_order]              */
diff --git a/silk/SKP_Silk_NLSF_VQ_weights_laroia.c b/silk/silk_NLSF_VQ_weights_laroia.c
similarity index 96%
rename from silk/SKP_Silk_NLSF_VQ_weights_laroia.c
rename to silk/silk_NLSF_VQ_weights_laroia.c
index e50736be..218f521f 100644
--- a/silk/SKP_Silk_NLSF_VQ_weights_laroia.c
+++ b/silk/silk_NLSF_VQ_weights_laroia.c
@@ -25,7 +25,7 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
 /* 
 R. Laroia, N. Phamdo and N. Farvardin, "Robust and Efficient Quantization of Speech LSP
@@ -36,7 +36,7 @@ Signal Processing, pp. 641-644, 1991.
 #define Q_OUT                       5
 
 /* Laroia low complexity NLSF weights */
-void SKP_Silk_NLSF_VQ_weights_laroia(
+void silk_NLSF_VQ_weights_laroia(
     SKP_int16           *pNLSFW_Q5,         /* O: Pointer to input vector weights           [D x 1]     */
     const SKP_int16     *pNLSF_Q15,         /* I: Pointer to input vector                   [D x 1]     */ 
     const SKP_int       D                   /* I: Input vector dimension (even)                         */
diff --git a/silk/SKP_Silk_NLSF_decode.c b/silk/silk_NLSF_decode.c
similarity index 80%
rename from silk/SKP_Silk_NLSF_decode.c
rename to silk/silk_NLSF_decode.c
index ec8017e9..8951764a 100644
--- a/silk/SKP_Silk_NLSF_decode.c
+++ b/silk/silk_NLSF_decode.c
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 /* Predictive dequantizer for NLSF residuals */
-void SKP_Silk_NLSF_residual_dequant(                        /* O    Returns RD value in Q30                     */
+void silk_NLSF_residual_dequant(                        /* O    Returns RD value in Q30                     */
           SKP_int16         x_Q10[],                        /* O    Output [ order ]                            */
     const SKP_int8          indices[],                      /* I    Quantization indices [ order ]              */
     const SKP_uint8         pred_coef_Q8[],                 /* I    Backward predictor coefs [ order ]          */
@@ -43,9 +43,9 @@ void SKP_Silk_NLSF_residual_dequant(                        /* O    Returns RD v
         pred_Q10 = SKP_RSHIFT( SKP_SMULBB( out_Q10, (SKP_int16)pred_coef_Q8[ i ] ), 8 );
         out_Q10  = SKP_LSHIFT( indices[ i ], 10 );
         if( out_Q10 > 0 ) {
-            out_Q10 = SKP_SUB16( out_Q10, SKP_FIX_CONST( NLSF_QUANT_LEVEL_ADJ, 10 ) );
+            out_Q10 = SKP_SUB16( out_Q10, SILK_FIX_CONST( NLSF_QUANT_LEVEL_ADJ, 10 ) );
         } else if( out_Q10 < 0 ) {
-            out_Q10 = SKP_ADD16( out_Q10, SKP_FIX_CONST( NLSF_QUANT_LEVEL_ADJ, 10 ) );
+            out_Q10 = SKP_ADD16( out_Q10, SILK_FIX_CONST( NLSF_QUANT_LEVEL_ADJ, 10 ) );
         }
         out_Q10  = SKP_SMLAWB( pred_Q10, out_Q10, quant_step_size_Q16 );
         x_Q10[ i ] = out_Q10;
@@ -56,10 +56,10 @@ void SKP_Silk_NLSF_residual_dequant(                        /* O    Returns RD v
 /***********************/
 /* NLSF vector decoder */
 /***********************/
-void SKP_Silk_NLSF_decode(
+void silk_NLSF_decode(
           SKP_int16                 *pNLSF_Q15,             /* O    Quantized NLSF vector [ LPC_ORDER ]     */
           SKP_int8                  *NLSFIndices,           /* I    Codebook path vector [ LPC_ORDER + 1 ]  */
-    const SKP_Silk_NLSF_CB_struct   *psNLSF_CB              /* I    Codebook object                         */
+    const silk_NLSF_CB_struct   *psNLSF_CB              /* I    Codebook object                         */
 )
 {
     SKP_int         i;
@@ -77,20 +77,20 @@ void SKP_Silk_NLSF_decode(
     }
 
     /* Unpack entropy table indices and predictor for current CB1 index */
-    SKP_Silk_NLSF_unpack( ec_ix, pred_Q8, psNLSF_CB, NLSFIndices[ 0 ] );
+    silk_NLSF_unpack( ec_ix, pred_Q8, psNLSF_CB, NLSFIndices[ 0 ] );
 
     /* Trellis dequantizer */
-    SKP_Silk_NLSF_residual_dequant( res_Q10, &NLSFIndices[ 1 ], pred_Q8, psNLSF_CB->quantStepSize_Q16, psNLSF_CB->order );
+    silk_NLSF_residual_dequant( res_Q10, &NLSFIndices[ 1 ], pred_Q8, psNLSF_CB->quantStepSize_Q16, psNLSF_CB->order );
 
     /* Weights from codebook vector */
-    SKP_Silk_NLSF_VQ_weights_laroia( W_tmp_Q5, pNLSF_Q15, psNLSF_CB->order );
+    silk_NLSF_VQ_weights_laroia( W_tmp_Q5, pNLSF_Q15, psNLSF_CB->order );
 
     /* Apply inverse square-rooted weights and add to output */
     for( i = 0; i < psNLSF_CB->order; i++ ) {
-        W_tmp_Q9 = SKP_Silk_SQRT_APPROX( SKP_LSHIFT( ( SKP_int32 )W_tmp_Q5[ i ], 13 ) );
+        W_tmp_Q9 = silk_SQRT_APPROX( SKP_LSHIFT( ( SKP_int32 )W_tmp_Q5[ i ], 13 ) );
         pNLSF_Q15[ i ] = SKP_ADD16( pNLSF_Q15[ i ], (SKP_int16)SKP_DIV32_16( SKP_LSHIFT( ( SKP_int32 )res_Q10[ i ], 14 ), W_tmp_Q9 ) );
     }
 
     /* NLSF stabilization */
-    SKP_Silk_NLSF_stabilize( pNLSF_Q15, psNLSF_CB->deltaMin_Q15, psNLSF_CB->order );
+    silk_NLSF_stabilize( pNLSF_Q15, psNLSF_CB->deltaMin_Q15, psNLSF_CB->order );
 }
diff --git a/silk/SKP_Silk_NLSF_del_dec_quant.c b/silk/silk_NLSF_del_dec_quant.c
similarity index 92%
rename from silk/SKP_Silk_NLSF_del_dec_quant.c
rename to silk/silk_NLSF_del_dec_quant.c
index bf43014b..85c6cc30 100644
--- a/silk/SKP_Silk_NLSF_del_dec_quant.c
+++ b/silk/silk_NLSF_del_dec_quant.c
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 /* Delayed-decision quantizer for NLSF residuals */
-SKP_int32 SKP_Silk_NLSF_del_dec_quant(                  /* O    Returns RD value in Q25                     */
+SKP_int32 silk_NLSF_del_dec_quant(                  /* O    Returns RD value in Q25                     */
     SKP_int8                    indices[],              /* O    Quantization indices [ order ]              */
     const SKP_int16             x_Q10[],                /* I    Input [ order ]                             */
     const SKP_int16             w_Q5[],                 /* I    Weights [ order ]                           */
@@ -72,15 +72,15 @@ SKP_int32 SKP_Silk_NLSF_del_dec_quant(                  /* O    Returns RD value
             out0_Q10 = SKP_LSHIFT( ind_tmp, 10 );
             out1_Q10 = SKP_ADD16( out0_Q10, 1024 );
             if( ind_tmp > 0 ) {
-                out0_Q10 = SKP_SUB16( out0_Q10, SKP_FIX_CONST( NLSF_QUANT_LEVEL_ADJ, 10 ) );
-                out1_Q10 = SKP_SUB16( out1_Q10, SKP_FIX_CONST( NLSF_QUANT_LEVEL_ADJ, 10 ) );
+                out0_Q10 = SKP_SUB16( out0_Q10, SILK_FIX_CONST( NLSF_QUANT_LEVEL_ADJ, 10 ) );
+                out1_Q10 = SKP_SUB16( out1_Q10, SILK_FIX_CONST( NLSF_QUANT_LEVEL_ADJ, 10 ) );
             } else if( ind_tmp == 0 ) {
-                out1_Q10 = SKP_SUB16( out1_Q10, SKP_FIX_CONST( NLSF_QUANT_LEVEL_ADJ, 10 ) );
+                out1_Q10 = SKP_SUB16( out1_Q10, SILK_FIX_CONST( NLSF_QUANT_LEVEL_ADJ, 10 ) );
             } else if( ind_tmp == -1 ) {
-                out0_Q10 = SKP_ADD16( out0_Q10, SKP_FIX_CONST( NLSF_QUANT_LEVEL_ADJ, 10 ) );
+                out0_Q10 = SKP_ADD16( out0_Q10, SILK_FIX_CONST( NLSF_QUANT_LEVEL_ADJ, 10 ) );
             } else {
-                out0_Q10 = SKP_ADD16( out0_Q10, SKP_FIX_CONST( NLSF_QUANT_LEVEL_ADJ, 10 ) );
-                out1_Q10 = SKP_ADD16( out1_Q10, SKP_FIX_CONST( NLSF_QUANT_LEVEL_ADJ, 10 ) );
+                out0_Q10 = SKP_ADD16( out0_Q10, SILK_FIX_CONST( NLSF_QUANT_LEVEL_ADJ, 10 ) );
+                out1_Q10 = SKP_ADD16( out1_Q10, SILK_FIX_CONST( NLSF_QUANT_LEVEL_ADJ, 10 ) );
             }
             out0_Q10  = SKP_SMULWB( out0_Q10, quant_step_size_Q16 );
             out1_Q10  = SKP_SMULWB( out1_Q10, quant_step_size_Q16 );
diff --git a/silk/SKP_Silk_NLSF_encode.c b/silk/silk_NLSF_encode.c
similarity index 83%
rename from silk/SKP_Silk_NLSF_encode.c
rename to silk/silk_NLSF_encode.c
index 965eb3c7..f0cfba37 100644
--- a/silk/SKP_Silk_NLSF_encode.c
+++ b/silk/silk_NLSF_encode.c
@@ -25,17 +25,17 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 #define STORE_LSF_DATA_FOR_TRAINING          0
 
 /***********************/
 /* NLSF vector encoder */
 /***********************/
-SKP_int32 SKP_Silk_NLSF_encode(                             /* O    Returns RD value in Q25                 */
+SKP_int32 silk_NLSF_encode(                             /* O    Returns RD value in Q25                 */
           SKP_int8                  *NLSFIndices,           /* I    Codebook path vector [ LPC_ORDER + 1 ]  */
           SKP_int16                 *pNLSF_Q15,             /* I/O  Quantized NLSF vector [ LPC_ORDER ]     */
-    const SKP_Silk_NLSF_CB_struct   *psNLSF_CB,             /* I    Codebook object                         */
+    const silk_NLSF_CB_struct   *psNLSF_CB,             /* I    Codebook object                         */
     const SKP_int16                 *pW_Q5,                 /* I    NLSF weight vector [ LPC_ORDER ]        */
     const SKP_int                   NLSF_mu_Q20,            /* I    Rate weight for the RD optimization     */
     const SKP_int                   nSurvivors,             /* I    Max survivors after first stage         */
@@ -71,13 +71,13 @@ SKP_int32 SKP_Silk_NLSF_encode(                             /* O    Returns RD v
     SKP_assert( NLSF_mu_Q20 <= 32767 && NLSF_mu_Q20 >= 0 );
 
     /* NLSF stabilization */
-    SKP_Silk_NLSF_stabilize( pNLSF_Q15, psNLSF_CB->deltaMin_Q15, psNLSF_CB->order );
+    silk_NLSF_stabilize( pNLSF_Q15, psNLSF_CB->deltaMin_Q15, psNLSF_CB->order );
 
     /* First stage: VQ */
-    SKP_Silk_NLSF_VQ( err_Q26, pNLSF_Q15, psNLSF_CB->CB1_NLSF_Q8, psNLSF_CB->nVectors, psNLSF_CB->order );
+    silk_NLSF_VQ( err_Q26, pNLSF_Q15, psNLSF_CB->CB1_NLSF_Q8, psNLSF_CB->nVectors, psNLSF_CB->order );
 
     /* Sort the quantization errors */
-    SKP_Silk_insertion_sort_increasing( err_Q26, tempIndices1, psNLSF_CB->nVectors, nSurvivors );
+    silk_insertion_sort_increasing( err_Q26, tempIndices1, psNLSF_CB->nVectors, nSurvivors );
 
     /* Loop over survivors */
     for( s = 0; s < nSurvivors; s++ ) {
@@ -91,11 +91,11 @@ SKP_int32 SKP_Silk_NLSF_encode(                             /* O    Returns RD v
         }
 
         /* Weights from codebook vector */
-        SKP_Silk_NLSF_VQ_weights_laroia( W_tmp_Q5, NLSF_tmp_Q15, psNLSF_CB->order );
+        silk_NLSF_VQ_weights_laroia( W_tmp_Q5, NLSF_tmp_Q15, psNLSF_CB->order );
 
         /* Apply square-rooted weights */
         for( i = 0; i < psNLSF_CB->order; i++ ) {
-            W_tmp_Q9 = SKP_Silk_SQRT_APPROX( SKP_LSHIFT( ( SKP_int32 )W_tmp_Q5[ i ], 13 ) );
+            W_tmp_Q9 = silk_SQRT_APPROX( SKP_LSHIFT( ( SKP_int32 )W_tmp_Q5[ i ], 13 ) );
             res_Q10[ i ] = ( SKP_int16 )SKP_RSHIFT( SKP_SMULBB( res_Q15[ i ], W_tmp_Q9 ), 14 );
         }
 
@@ -105,10 +105,10 @@ SKP_int32 SKP_Silk_NLSF_encode(                             /* O    Returns RD v
         }
 
         /* Unpack entropy table indices and predictor for current CB1 index */
-        SKP_Silk_NLSF_unpack( ec_ix, pred_Q8, psNLSF_CB, ind1 );
+        silk_NLSF_unpack( ec_ix, pred_Q8, psNLSF_CB, ind1 );
 
         /* Trellis quantizer */
-        RD_Q25[ s ] = SKP_Silk_NLSF_del_dec_quant( &tempIndices2[ s * MAX_LPC_ORDER ], res_Q10, W_adj_Q5, pred_Q8, ec_ix, 
+        RD_Q25[ s ] = silk_NLSF_del_dec_quant( &tempIndices2[ s * MAX_LPC_ORDER ], res_Q10, W_adj_Q5, pred_Q8, ec_ix, 
             psNLSF_CB->ec_Rates_Q5, psNLSF_CB->quantStepSize_Q16, psNLSF_CB->invQuantStepSize_Q6, NLSF_mu_Q20, psNLSF_CB->order );
 
         /* Add rate for first stage */
@@ -118,33 +118,33 @@ SKP_int32 SKP_Silk_NLSF_encode(                             /* O    Returns RD v
         } else {
             prob_Q8 = iCDF_ptr[ ind1 - 1 ] - iCDF_ptr[ ind1 ];
         }
-        bits_q7 = ( 8 << 7 ) - SKP_Silk_lin2log( prob_Q8 );
+        bits_q7 = ( 8 << 7 ) - silk_lin2log( prob_Q8 );
         RD_Q25[ s ] = SKP_SMLABB( RD_Q25[ s ], bits_q7, SKP_RSHIFT( NLSF_mu_Q20, 2 ) );
     }
 
     /* Find the lowest rate-distortion error */
-    SKP_Silk_insertion_sort_increasing( RD_Q25, &bestIndex, nSurvivors, 1 );
+    silk_insertion_sort_increasing( RD_Q25, &bestIndex, nSurvivors, 1 );
 
     NLSFIndices[ 0 ] = ( SKP_int8 )tempIndices1[ bestIndex ];
     SKP_memcpy( &NLSFIndices[ 1 ], &tempIndices2[ bestIndex * MAX_LPC_ORDER ], psNLSF_CB->order * sizeof( SKP_int8 ) );
 
     /* Decode */
-    SKP_Silk_NLSF_decode( pNLSF_Q15, NLSFIndices, psNLSF_CB );
+    silk_NLSF_decode( pNLSF_Q15, NLSFIndices, psNLSF_CB );
 
 #if STORE_LSF_DATA_FOR_TRAINING
     {
 		/* code for training the codebooks */
         SKP_int32 RD_dec_Q22, Dist_Q22_dec, Rate_Q7, diff_Q15;
         ind1 = NLSFIndices[ 0 ];
-        SKP_Silk_NLSF_unpack( ec_ix, pred_Q8, psNLSF_CB, ind1 );
+        silk_NLSF_unpack( ec_ix, pred_Q8, psNLSF_CB, ind1 );
 
         pCB_element = &psNLSF_CB->CB1_NLSF_Q8[ ind1 * psNLSF_CB->order ];
         for( i = 0; i < psNLSF_CB->order; i++ ) {
             NLSF_tmp_Q15[ i ] = SKP_LSHIFT16( ( SKP_int16 )pCB_element[ i ], 7 );
         }
-        SKP_Silk_NLSF_VQ_weights_laroia( W_tmp_Q5, NLSF_tmp_Q15, psNLSF_CB->order );
+        silk_NLSF_VQ_weights_laroia( W_tmp_Q5, NLSF_tmp_Q15, psNLSF_CB->order );
         for( i = 0; i < psNLSF_CB->order; i++ ) {
-            W_tmp_Q9 = SKP_Silk_SQRT_APPROX( SKP_LSHIFT( ( SKP_int32 )W_tmp_Q5[ i ], 13 ) );
+            W_tmp_Q9 = silk_SQRT_APPROX( SKP_LSHIFT( ( SKP_int32 )W_tmp_Q5[ i ], 13 ) );
             res_Q15[ i ] = pNLSF_Q15_orig[ i ] - NLSF_tmp_Q15[ i ];
             res_Q10[ i ] = (SKP_int16)SKP_RSHIFT( SKP_SMULBB( res_Q15[ i ], W_tmp_Q9 ), 14 );
             DEBUG_STORE_DATA( NLSF_res_q10.dat, &res_Q10[ i ], sizeof( SKP_int16 ) );
@@ -164,7 +164,7 @@ SKP_int32 SKP_Silk_NLSF_encode(                             /* O    Returns RD v
         } else {
             prob_Q8 = iCDF_ptr[ ind1 - 1 ] - iCDF_ptr[ ind1 ];
         }
-        Rate_Q7 = ( 8 << 7 ) - SKP_Silk_lin2log( prob_Q8 );
+        Rate_Q7 = ( 8 << 7 ) - silk_lin2log( prob_Q8 );
         for( i = 0; i < psNLSF_CB->order; i++ ) {
             Rate_Q7 += ((int)psNLSF_CB->ec_Rates_Q5[ ec_ix[ i ] + SKP_LIMIT( NLSFIndices[ i + 1 ] + NLSF_QUANT_MAX_AMPLITUDE, 0, 2 * NLSF_QUANT_MAX_AMPLITUDE ) ] ) << 2;
             if( SKP_abs( NLSFIndices[ i + 1 ] ) >= NLSF_QUANT_MAX_AMPLITUDE ) {
diff --git a/silk/SKP_Silk_NLSF_stabilize.c b/silk/silk_NLSF_stabilize.c
similarity index 95%
rename from silk/SKP_Silk_NLSF_stabilize.c
rename to silk/silk_NLSF_stabilize.c
index 1e7def86..45f71cd0 100644
--- a/silk/SKP_Silk_NLSF_stabilize.c
+++ b/silk/silk_NLSF_stabilize.c
@@ -33,13 +33,13 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /*     Euclidean distance to input vector                   */
 /* - Output are sorted NLSF coefficients                    */
 /*                                                          */
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
 /* Constant Definitions */
 #define MAX_LOOPS        20
 
 /* NLSF stabilizer, for a single input data vector */
-void SKP_Silk_NLSF_stabilize(
+void silk_NLSF_stabilize(
           SKP_int16  *NLSF_Q15,            /* I/O:  Unstable/stabilized normalized LSF vector in Q15 [L]                    */
     const SKP_int16  *NDeltaMin_Q15,       /* I:    Normalized delta min vector in Q15, NDeltaMin_Q15[L] must be >= 1 [L+1] */
     const SKP_int     L                    /* I:    Number of NLSF parameters in the input vector                           */
@@ -119,7 +119,7 @@ void SKP_Silk_NLSF_stabilize(
         /* Insertion sort (fast for already almost sorted arrays):   */
         /* Best case:  O(n)   for an already sorted array            */
         /* Worst case: O(n^2) for an inversely sorted array          */
-        SKP_Silk_insertion_sort_increasing_all_values_int16( &NLSF_Q15[0], L );
+        silk_insertion_sort_increasing_all_values_int16( &NLSF_Q15[0], L );
             
         /* First NLSF should be no less than NDeltaMin[0] */
         NLSF_Q15[0] = SKP_max_int( NLSF_Q15[0], NDeltaMin_Q15[0] );
diff --git a/silk/SKP_Silk_NLSF_unpack.c b/silk/silk_NLSF_unpack.c
similarity index 92%
rename from silk/SKP_Silk_NLSF_unpack.c
rename to silk/silk_NLSF_unpack.c
index 4dd3a9c4..557277bf 100644
--- a/silk/SKP_Silk_NLSF_unpack.c
+++ b/silk/silk_NLSF_unpack.c
@@ -25,13 +25,13 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 /* Unpack predictor values and indices for entropy coding tables */
-void SKP_Silk_NLSF_unpack(
+void silk_NLSF_unpack(
           SKP_int16                 ec_ix[],                /* O    Indices to entropy tales [ LPC_ORDER ]  */
           SKP_uint8                 pred_Q8[],              /* O    LSF predictor [ LPC_ORDER ]             */
-    const SKP_Silk_NLSF_CB_struct   *psNLSF_CB,             /* I    Codebook object                         */
+    const silk_NLSF_CB_struct   *psNLSF_CB,             /* I    Codebook object                         */
     const SKP_int                   CB1_index               /* I    Index of vector in first LSF codebook   */
 ) 
 {
diff --git a/silk/SKP_Silk_NSQ.c b/silk/silk_NSQ.c
similarity index 92%
rename from silk/SKP_Silk_NSQ.c
rename to silk/silk_NSQ.c
index 90ea49bf..bf5f2042 100644
--- a/silk/SKP_Silk_NSQ.c
+++ b/silk/silk_NSQ.c
@@ -25,11 +25,11 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
-SKP_INLINE void SKP_Silk_nsq_scale_states(
-    const SKP_Silk_encoder_state *psEncC,   /* I    Encoder State                   */
-    SKP_Silk_nsq_state  *NSQ,               /* I/O  NSQ state                       */
+SKP_INLINE void silk_nsq_scale_states(
+    const silk_encoder_state *psEncC,       /* I    Encoder State                   */
+    silk_nsq_state      *NSQ,               /* I/O  NSQ state                       */
     const SKP_int16     x[],                /* I    input in Q0                     */
     SKP_int32           x_sc_Q10[],         /* O    input scaled with 1/Gain        */
     const SKP_int16     sLTP[],             /* I    re-whitened LTP state in Q0     */
@@ -40,8 +40,8 @@ SKP_INLINE void SKP_Silk_nsq_scale_states(
     const SKP_int       pitchL[ MAX_NB_SUBFR ]  /* I                                */
 );
 
-SKP_INLINE void SKP_Silk_noise_shape_quantizer(
-    SKP_Silk_nsq_state  *NSQ,               /* I/O  NSQ state                       */
+SKP_INLINE void silk_noise_shape_quantizer(
+    silk_nsq_state      *NSQ,               /* I/O  NSQ state                       */
     SKP_int             signalType,         /* I    Signal type                     */
     const SKP_int32     x_sc_Q10[],         /* I                                    */
     SKP_int8            pulses[],           /* O                                    */
@@ -62,9 +62,9 @@ SKP_INLINE void SKP_Silk_noise_shape_quantizer(
     SKP_int             predictLPCOrder     /* I    Prediction filter order         */
 );
 
-void SKP_Silk_NSQ(
-    const SKP_Silk_encoder_state    *psEncC,                                    /* I/O  Encoder State                       */
-    SKP_Silk_nsq_state              *NSQ,                                       /* I/O  NSQ state                           */
+void silk_NSQ(
+    const silk_encoder_state        *psEncC,                                    /* I/O  Encoder State                       */
+    silk_nsq_state                  *NSQ,                                       /* I/O  NSQ state                           */
     SideInfoIndices                 *psIndices,                                 /* I/O  Quantization Indices                */
     const SKP_int16                 x[],                                        /* I    prefiltered input signal            */
     SKP_int8                        pulses[],                                   /* O    quantized qulse signal              */
@@ -96,7 +96,7 @@ void SKP_Silk_NSQ(
 
     SKP_assert( NSQ->prev_inv_gain_Q16 != 0 );
 
-    offset_Q10 = SKP_Silk_Quantization_Offsets_Q10[ psIndices->signalType >> 1 ][ psIndices->quantOffsetType ];
+    offset_Q10 = silk_Quantization_Offsets_Q10[ psIndices->signalType >> 1 ][ psIndices->quantOffsetType ];
 
     if( psIndices->NLSFInterpCoef_Q2 == 4 ) {
         LSF_interpolation_flag = 0;
@@ -129,7 +129,7 @@ void SKP_Silk_NSQ(
                 start_idx = psEncC->ltp_mem_length - lag - psEncC->predictLPCOrder - LTP_ORDER / 2;
                 SKP_assert( start_idx > 0 );
                 
-                SKP_Silk_LPC_analysis_filter( &sLTP[ start_idx ], &NSQ->xq[ start_idx + k * psEncC->subfr_length ], 
+                silk_LPC_analysis_filter( &sLTP[ start_idx ], &NSQ->xq[ start_idx + k * psEncC->subfr_length ], 
                     A_Q12, psEncC->ltp_mem_length - start_idx, psEncC->predictLPCOrder );
 
                 NSQ->rewhite_flag = 1;
@@ -137,9 +137,9 @@ void SKP_Silk_NSQ(
             }
         }
         
-        SKP_Silk_nsq_scale_states( psEncC, NSQ, x, x_sc_Q10, sLTP, sLTP_Q16, k, LTP_scale_Q14, Gains_Q16, pitchL );
+        silk_nsq_scale_states( psEncC, NSQ, x, x_sc_Q10, sLTP, sLTP_Q16, k, LTP_scale_Q14, Gains_Q16, pitchL );
 
-        SKP_Silk_noise_shape_quantizer( NSQ, psIndices->signalType, x_sc_Q10, pulses, pxq, sLTP_Q16, A_Q12, B_Q14, 
+        silk_noise_shape_quantizer( NSQ, psIndices->signalType, x_sc_Q10, pulses, pxq, sLTP_Q16, A_Q12, B_Q14, 
             AR_shp_Q13, lag, HarmShapeFIRPacked_Q14, Tilt_Q14[ k ], LF_shp_Q14[ k ], Gains_Q16[ k ], Lambda_Q10, 
             offset_Q10, psEncC->subfr_length, psEncC->shapingLPCOrder, psEncC->predictLPCOrder );
 
@@ -163,10 +163,10 @@ void SKP_Silk_NSQ(
 }
 
 /***********************************/
-/* SKP_Silk_noise_shape_quantizer  */
+/* silk_noise_shape_quantizer  */
 /***********************************/
-SKP_INLINE void SKP_Silk_noise_shape_quantizer(
-    SKP_Silk_nsq_state  *NSQ,               /* I/O  NSQ state                       */
+SKP_INLINE void silk_noise_shape_quantizer(
+    silk_nsq_state  *NSQ,               /* I/O  NSQ state                       */
     SKP_int             signalType,         /* I    Signal type                     */
     const SKP_int32     x_sc_Q10[],         /* I                                    */
     SKP_int8            pulses[],           /* O                                    */
@@ -356,9 +356,9 @@ SKP_INLINE void SKP_Silk_noise_shape_quantizer(
     SKP_memcpy( NSQ->sLPC_Q14, &NSQ->sLPC_Q14[ length ], NSQ_LPC_BUF_LENGTH * sizeof( SKP_int32 ) );
 }
 
-SKP_INLINE void SKP_Silk_nsq_scale_states(
-    const SKP_Silk_encoder_state *psEncC,   /* I    Encoder State                   */
-    SKP_Silk_nsq_state  *NSQ,               /* I/O  NSQ state                       */
+SKP_INLINE void silk_nsq_scale_states(
+    const silk_encoder_state *psEncC,       /* I    Encoder State                   */
+    silk_nsq_state      *NSQ,               /* I/O  NSQ state                       */
     const SKP_int16     x[],                /* I    input in Q0                     */
     SKP_int32           x_sc_Q10[],         /* O    input scaled with 1/Gain        */
     const SKP_int16     sLTP[],             /* I    re-whitened LTP state in Q0     */
@@ -372,7 +372,7 @@ SKP_INLINE void SKP_Silk_nsq_scale_states(
     SKP_int   i, lag;
     SKP_int32 inv_gain_Q16, gain_adj_Q16, inv_gain_Q32;
 
-    inv_gain_Q16 = SKP_INVERSE32_varQ( SKP_max( Gains_Q16[ subfr ], 1 ), 32 );
+    inv_gain_Q16 = silk_INVERSE32_varQ( SKP_max( Gains_Q16[ subfr ], 1 ), 32 );
     inv_gain_Q16 = SKP_min( inv_gain_Q16, SKP_int16_MAX );
     lag          = pitchL[ subfr ];
 
@@ -391,7 +391,7 @@ SKP_INLINE void SKP_Silk_nsq_scale_states(
 
     /* Adjust for changing gain */
     if( inv_gain_Q16 != NSQ->prev_inv_gain_Q16 ) {
-        gain_adj_Q16 = SKP_DIV32_varQ( inv_gain_Q16, NSQ->prev_inv_gain_Q16, 16 );
+        gain_adj_Q16 = silk_DIV32_varQ( inv_gain_Q16, NSQ->prev_inv_gain_Q16, 16 );
 
         /* Scale long-term shaping state */
         for( i = NSQ->sLTP_shp_buf_idx - psEncC->ltp_mem_length; i < NSQ->sLTP_shp_buf_idx; i++ ) {
diff --git a/silk/SKP_Silk_NSQ_del_dec.c b/silk/silk_NSQ_del_dec.c
similarity index 94%
rename from silk/SKP_Silk_NSQ_del_dec.c
rename to silk/silk_NSQ_del_dec.c
index 6ef1bd5b..8ff138ae 100644
--- a/silk/SKP_Silk_NSQ_del_dec.c
+++ b/silk/silk_NSQ_del_dec.c
@@ -25,7 +25,7 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 typedef struct {
     SKP_int32 sLPC_Q14[ MAX_FRAME_LENGTH / MAX_NB_SUBFR + NSQ_LPC_BUF_LENGTH ];
@@ -50,9 +50,9 @@ typedef struct {
     SKP_int32 LPC_exc_Q16;
 } NSQ_sample_struct;
 
-SKP_INLINE void SKP_Silk_nsq_del_dec_scale_states(
-    const SKP_Silk_encoder_state *psEncC,           /* I    Encoder State                       */
-    SKP_Silk_nsq_state  *NSQ,                       /* I/O  NSQ state                           */
+SKP_INLINE void silk_nsq_del_dec_scale_states(
+    const silk_encoder_state *psEncC,               /* I    Encoder State                       */
+    silk_nsq_state      *NSQ,                       /* I/O  NSQ state                           */
     NSQ_del_dec_struct  psDelDec[],                 /* I/O  Delayed decision states             */
     const SKP_int16     x[],                        /* I    Input in Q0                         */
     SKP_int32           x_sc_Q10[],                 /* O    Input scaled with 1/Gain in Q10     */
@@ -69,8 +69,8 @@ SKP_INLINE void SKP_Silk_nsq_del_dec_scale_states(
 /******************************************/
 /* Noise shape quantizer for one subframe */
 /******************************************/
-SKP_INLINE void SKP_Silk_noise_shape_quantizer_del_dec(
-    SKP_Silk_nsq_state  *NSQ,                   /* I/O  NSQ state                           */
+SKP_INLINE void silk_noise_shape_quantizer_del_dec(
+    silk_nsq_state      *NSQ,                   /* I/O  NSQ state                           */
     NSQ_del_dec_struct  psDelDec[],             /* I/O  Delayed decision states             */
     SKP_int             signalType,             /* I    Signal type                         */
     const SKP_int32     x_Q10[],                /* I                                        */
@@ -98,9 +98,9 @@ SKP_INLINE void SKP_Silk_noise_shape_quantizer_del_dec(
     SKP_int             decisionDelay           /* I                                        */
 );
 
-void SKP_Silk_NSQ_del_dec(
-    const SKP_Silk_encoder_state    *psEncC,                                    /* I/O  Encoder State                       */
-    SKP_Silk_nsq_state              *NSQ,                                       /* I/O  NSQ state                           */
+void silk_NSQ_del_dec(
+    const silk_encoder_state        *psEncC,                                    /* I/O  Encoder State                       */
+    silk_nsq_state                  *NSQ,                                       /* I/O  NSQ state                           */
     SideInfoIndices                 *psIndices,                                 /* I/O  Quantization Indices                */
     const SKP_int16                 x[],                                        /* I    Prefiltered input signal            */
     SKP_int8                        pulses[],                                   /* O    Quantized pulse signal              */
@@ -148,7 +148,7 @@ void SKP_Silk_NSQ_del_dec(
         SKP_memcpy( psDD->sAR2_Q14, NSQ->sAR2_Q14, sizeof( NSQ->sAR2_Q14 ) );
     }
 
-    offset_Q10   = SKP_Silk_Quantization_Offsets_Q10[ psIndices->signalType >> 1 ][ psIndices->quantOffsetType ];
+    offset_Q10   = silk_Quantization_Offsets_Q10[ psIndices->signalType >> 1 ][ psIndices->quantOffsetType ];
     smpl_buf_idx = 0; /* index of oldest samples */
 
     decisionDelay = SKP_min_int( DECISION_DELAY, psEncC->subfr_length );
@@ -228,7 +228,7 @@ void SKP_Silk_NSQ_del_dec(
                 start_idx = psEncC->ltp_mem_length - lag - psEncC->predictLPCOrder - LTP_ORDER / 2;
                 SKP_assert( start_idx > 0 );
                 
-                SKP_Silk_LPC_analysis_filter( &sLTP[ start_idx ], &NSQ->xq[ start_idx + k * psEncC->subfr_length ], 
+                silk_LPC_analysis_filter( &sLTP[ start_idx ], &NSQ->xq[ start_idx + k * psEncC->subfr_length ], 
                     A_Q12, psEncC->ltp_mem_length - start_idx, psEncC->predictLPCOrder );
 
                 NSQ->sLTP_buf_idx = psEncC->ltp_mem_length;
@@ -236,10 +236,10 @@ void SKP_Silk_NSQ_del_dec(
             }
         }
 
-        SKP_Silk_nsq_del_dec_scale_states( psEncC, NSQ, psDelDec, x, x_sc_Q10, sLTP, sLTP_Q16, k, 
+        silk_nsq_del_dec_scale_states( psEncC, NSQ, psDelDec, x, x_sc_Q10, sLTP, sLTP_Q16, k, 
             psEncC->nStatesDelayedDecision, smpl_buf_idx, LTP_scale_Q14, Gains_Q16, pitchL );
 
-        SKP_Silk_noise_shape_quantizer_del_dec( NSQ, psDelDec, psIndices->signalType, x_sc_Q10, pulses, pxq, sLTP_Q16, 
+        silk_noise_shape_quantizer_del_dec( NSQ, psDelDec, psIndices->signalType, x_sc_Q10, pulses, pxq, sLTP_Q16, 
             delayedGain_Q16, A_Q12, B_Q14, AR_shp_Q13, lag, HarmShapeFIRPacked_Q14, Tilt_Q14[ k ], LF_shp_Q14[ k ], 
             Gains_Q16[ k ], Lambda_Q10, offset_Q10, psEncC->subfr_length, subfr++, psEncC->shapingLPCOrder, 
             psEncC->predictLPCOrder, psEncC->warping_Q16, psEncC->nStatesDelayedDecision, &smpl_buf_idx, decisionDelay );
@@ -292,8 +292,8 @@ void SKP_Silk_NSQ_del_dec(
 /******************************************/
 /* Noise shape quantizer for one subframe */
 /******************************************/
-SKP_INLINE void SKP_Silk_noise_shape_quantizer_del_dec(
-    SKP_Silk_nsq_state  *NSQ,                   /* I/O  NSQ state                           */
+SKP_INLINE void silk_noise_shape_quantizer_del_dec(
+    silk_nsq_state  *NSQ,                   /* I/O  NSQ state                           */
     NSQ_del_dec_struct  psDelDec[],             /* I/O  Delayed decision states             */
     SKP_int             signalType,             /* I    Signal type                         */
     const SKP_int32     x_Q10[],                /* I                                        */
@@ -596,9 +596,9 @@ SKP_INLINE void SKP_Silk_noise_shape_quantizer_del_dec(
     }
 }
 
-SKP_INLINE void SKP_Silk_nsq_del_dec_scale_states(
-    const SKP_Silk_encoder_state *psEncC,           /* I    Encoder State                       */
-    SKP_Silk_nsq_state  *NSQ,                       /* I/O  NSQ state                           */
+SKP_INLINE void silk_nsq_del_dec_scale_states(
+    const silk_encoder_state *psEncC,               /* I    Encoder State                       */
+    silk_nsq_state      *NSQ,                       /* I/O  NSQ state                           */
     NSQ_del_dec_struct  psDelDec[],                 /* I/O  Delayed decision states             */
     const SKP_int16     x[],                        /* I    Input in Q0                         */
     SKP_int32           x_sc_Q10[],                 /* O    Input scaled with 1/Gain in Q10     */
@@ -616,7 +616,7 @@ SKP_INLINE void SKP_Silk_nsq_del_dec_scale_states(
     SKP_int32          inv_gain_Q16, gain_adj_Q16, inv_gain_Q32;
     NSQ_del_dec_struct *psDD;
 
-    inv_gain_Q16 = SKP_INVERSE32_varQ( SKP_max( Gains_Q16[ subfr ], 1 ), 32 );
+    inv_gain_Q16 = silk_INVERSE32_varQ( SKP_max( Gains_Q16[ subfr ], 1 ), 32 );
     inv_gain_Q16 = SKP_min( inv_gain_Q16, SKP_int16_MAX );
     lag          = pitchL[ subfr ];
 
@@ -635,7 +635,7 @@ SKP_INLINE void SKP_Silk_nsq_del_dec_scale_states(
 
     /* Adjust for changing gain */
     if( inv_gain_Q16 != NSQ->prev_inv_gain_Q16 ) {
-        gain_adj_Q16 = SKP_DIV32_varQ( inv_gain_Q16, NSQ->prev_inv_gain_Q16, 16 );
+        gain_adj_Q16 = silk_DIV32_varQ( inv_gain_Q16, NSQ->prev_inv_gain_Q16, 16 );
 
         /* Scale long-term shaping state */
         for( i = NSQ->sLTP_shp_buf_idx - psEncC->ltp_mem_length; i < NSQ->sLTP_shp_buf_idx; i++ ) {
diff --git a/silk/SKP_Silk_PLC.c b/silk/silk_PLC.c
similarity index 87%
rename from silk/SKP_Silk_PLC.c
rename to silk/silk_PLC.c
index c10e4205..478f429a 100644
--- a/silk/SKP_Silk_PLC.c
+++ b/silk/silk_PLC.c
@@ -25,24 +25,24 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
-#include "SKP_Silk_PLC.h"
+#include "silk_main.h"
+#include "silk_PLC.h"
 
 #define NB_ATT 2
 static const SKP_int16 HARM_ATT_Q15[NB_ATT]              = { 32440, 31130 }; /* 0.99, 0.95 */
 static const SKP_int16 PLC_RAND_ATTENUATE_V_Q15[NB_ATT]  = { 31130, 26214 }; /* 0.95, 0.8 */
 static const SKP_int16 PLC_RAND_ATTENUATE_UV_Q15[NB_ATT] = { 32440, 29491 }; /* 0.99, 0.9 */
 
-void SKP_Silk_PLC_Reset(
-    SKP_Silk_decoder_state      *psDec              /* I/O Decoder state        */
+void silk_PLC_Reset(
+    silk_decoder_state      *psDec              /* I/O Decoder state        */
 )
 {
     psDec->sPLC.pitchL_Q8 = SKP_RSHIFT( psDec->frame_length, 1 );
 }
 
-void SKP_Silk_PLC(
-    SKP_Silk_decoder_state      *psDec,             /* I Decoder state          */
-    SKP_Silk_decoder_control    *psDecCtrl,         /* I Decoder control        */
+void silk_PLC(
+    silk_decoder_state      *psDec,             /* I Decoder state          */
+    silk_decoder_control    *psDecCtrl,         /* I Decoder control        */
     SKP_int16                   signal[],           /* O Concealed signal       */
     SKP_int                     length,             /* I length of residual     */
     SKP_int                     lost                /* I Loss flag              */
@@ -50,7 +50,7 @@ void SKP_Silk_PLC(
 {
     /* PLC control function */
     if( psDec->fs_kHz != psDec->sPLC.fs_kHz ) {
-        SKP_Silk_PLC_Reset( psDec );
+        silk_PLC_Reset( psDec );
         psDec->sPLC.fs_kHz = psDec->fs_kHz;
     }
 
@@ -58,30 +58,30 @@ void SKP_Silk_PLC(
         /****************************/
         /* Generate Signal          */
         /****************************/
-        SKP_Silk_PLC_conceal( psDec, psDecCtrl, signal, length );
+        silk_PLC_conceal( psDec, psDecCtrl, signal, length );
 
         psDec->lossCnt++;
     } else {
         /****************************/
         /* Update state             */
         /****************************/
-        SKP_Silk_PLC_update( psDec, psDecCtrl, signal, length );
+        silk_PLC_update( psDec, psDecCtrl, signal, length );
     }
 }
 
 /**************************************************/
 /* Update state of PLC                            */
 /**************************************************/
-void SKP_Silk_PLC_update(
-    SKP_Silk_decoder_state      *psDec,             /* (I/O) Decoder state          */
-    SKP_Silk_decoder_control    *psDecCtrl,         /* (I/O) Decoder control        */
+void silk_PLC_update(
+    silk_decoder_state      *psDec,             /* (I/O) Decoder state          */
+    silk_decoder_control    *psDecCtrl,         /* (I/O) Decoder control        */
     SKP_int16                   signal[],
     SKP_int                     length
 )
 {
     SKP_int32 LTP_Gain_Q14, temp_LTP_Gain_Q14;
     SKP_int   i, j;
-    SKP_Silk_PLC_struct *psPLC;
+    silk_PLC_struct *psPLC;
 
     psPLC = &psDec->sPLC;
 
@@ -146,9 +146,9 @@ void SKP_Silk_PLC_update(
     SKP_memcpy( psPLC->prevGain_Q16, psDecCtrl->Gains_Q16, psDec->nb_subfr * sizeof( SKP_int32 ) );
 }
 
-void SKP_Silk_PLC_conceal(
-    SKP_Silk_decoder_state      *psDec,             /* I/O Decoder state */
-    SKP_Silk_decoder_control    *psDecCtrl,         /* I/O Decoder control */
+void silk_PLC_conceal(
+    silk_decoder_state      *psDec,             /* I/O Decoder state */
+    silk_decoder_control    *psDecCtrl,         /* I/O Decoder control */
     SKP_int16                   signal[],           /* O concealed signal */
     SKP_int                     length              /* I length of residual */
 )
@@ -160,14 +160,14 @@ void SKP_Silk_PLC_conceal(
     SKP_int   lag, idx, sLTP_buf_idx, shift1, shift2;
     SKP_int32 energy1, energy2, *rand_ptr, *pred_lag_ptr;
     SKP_int32 sig_Q10[ MAX_FRAME_LENGTH ], *sig_Q10_ptr, LPC_exc_Q10, LPC_pred_Q10,  LTP_pred_Q14;
-    SKP_Silk_PLC_struct *psPLC;
+    silk_PLC_struct *psPLC;
     psPLC = &psDec->sPLC;
 
     /* Update LTP buffer */
     SKP_memmove( psDec->sLTP_Q16, &psDec->sLTP_Q16[ psDec->frame_length ], psDec->ltp_mem_length * sizeof( SKP_int32 ) );
 
     /* LPC concealment. Apply BWE to previous LPC */
-    SKP_Silk_bwexpander( psPLC->prevLPC_Q12, psDec->LPC_order, SKP_FIX_CONST( BWE_COEF, 16 ) );
+    silk_bwexpander( psPLC->prevLPC_Q12, psDec->LPC_order, SILK_FIX_CONST( BWE_COEF, 16 ) );
 
     /* Find random noise component */
     /* Scale previous excitation signal */
@@ -180,8 +180,8 @@ void SKP_Silk_PLC_conceal(
         exc_buf_ptr += psDec->subfr_length;
     }
     /* Find the subframe with lowest energy of the last two and use that as random noise generator */ 
-    SKP_Silk_sum_sqr_shift( &energy1, &shift1, exc_buf,                         psDec->subfr_length );
-    SKP_Silk_sum_sqr_shift( &energy2, &shift2, &exc_buf[ psDec->subfr_length ], psDec->subfr_length );
+    silk_sum_sqr_shift( &energy1, &shift1, exc_buf,                         psDec->subfr_length );
+    silk_sum_sqr_shift( &energy2, &shift2, &exc_buf[ psDec->subfr_length ], psDec->subfr_length );
         
     if( SKP_RSHIFT( energy1, shift2 ) < SKP_RSHIFT( energy2, shift1 ) ) {
         /* First sub-frame has lowest energy */
@@ -218,7 +218,7 @@ void SKP_Silk_PLC_conceal(
             /* Reduce random noise for unvoiced frames with high LPC gain */
             SKP_int32 invGain_Q30, down_scale_Q30;
             
-            SKP_Silk_LPC_inverse_pred_gain( &invGain_Q30, psPLC->prevLPC_Q12, psDec->LPC_order );
+            silk_LPC_inverse_pred_gain( &invGain_Q30, psPLC->prevLPC_Q12, psDec->LPC_order );
             
             down_scale_Q30 = SKP_min_32( SKP_RSHIFT( 1 << 30, LOG2_INV_LPC_GAIN_HIGH_THRES ), invGain_Q30 );
             down_scale_Q30 = SKP_max_32( SKP_RSHIFT( 1 << 30, LOG2_INV_LPC_GAIN_LOW_THRES ), down_scale_Q30 );
@@ -328,27 +328,27 @@ void SKP_Silk_PLC_conceal(
 }
 
 /* Glues concealed frames with new good recieved frames             */
-void SKP_Silk_PLC_glue_frames(
-    SKP_Silk_decoder_state      *psDec,             /* I/O decoder state    */
-    SKP_Silk_decoder_control    *psDecCtrl,         /* I/O Decoder control  */
+void silk_PLC_glue_frames(
+    silk_decoder_state      *psDec,             /* I/O decoder state    */
+    silk_decoder_control    *psDecCtrl,         /* I/O Decoder control  */
     SKP_int16                   signal[],           /* I/O signal           */
     SKP_int                     length              /* I length of residual */
 )
 {
     SKP_int   i, energy_shift;
     SKP_int32 energy;
-    SKP_Silk_PLC_struct *psPLC;
+    silk_PLC_struct *psPLC;
     psPLC = &psDec->sPLC;
 
     if( psDec->lossCnt ) {
         /* Calculate energy in concealed residual */
-        SKP_Silk_sum_sqr_shift( &psPLC->conc_energy, &psPLC->conc_energy_shift, signal, length );
+        silk_sum_sqr_shift( &psPLC->conc_energy, &psPLC->conc_energy_shift, signal, length );
         
         psPLC->last_frame_lost = 1;
     } else {
         if( psDec->sPLC.last_frame_lost ) {
             /* Calculate residual in decoded signal if last frame was lost */
-            SKP_Silk_sum_sqr_shift( &energy, &energy_shift, signal, length );
+            silk_sum_sqr_shift( &energy, &energy_shift, signal, length );
 
             /* Normalize energies */
             if( energy_shift > psPLC->conc_energy_shift ) {
@@ -362,14 +362,14 @@ void SKP_Silk_PLC_glue_frames(
                 SKP_int32 frac_Q24, LZ;
                 SKP_int32 gain_Q16, slope_Q16;
 
-                LZ = SKP_Silk_CLZ32( psPLC->conc_energy );
+                LZ = silk_CLZ32( psPLC->conc_energy );
                 LZ = LZ - 1;
                 psPLC->conc_energy = SKP_LSHIFT( psPLC->conc_energy, LZ );
                 energy = SKP_RSHIFT( energy, SKP_max_32( 24 - LZ, 0 ) );
                 
                 frac_Q24 = SKP_DIV32( psPLC->conc_energy, SKP_max( energy, 1 ) );
                 
-                gain_Q16 = SKP_LSHIFT( SKP_Silk_SQRT_APPROX( frac_Q24 ), 4 );
+                gain_Q16 = SKP_LSHIFT( silk_SQRT_APPROX( frac_Q24 ), 4 );
                 slope_Q16 = SKP_DIV32_16( ( 1 << 16 ) - gain_Q16, length );
 				/* Make slope 4x steeper to avoid missing onsets after DTX */
                 slope_Q16 = SKP_LSHIFT( slope_Q16, 2 );
diff --git a/silk/SKP_Silk_PLC.h b/silk/silk_PLC.h
similarity index 75%
rename from silk/SKP_Silk_PLC.h
rename to silk/silk_PLC.h
index 97fc9011..8044c1a9 100644
--- a/silk/SKP_Silk_PLC.h
+++ b/silk/silk_PLC.h
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#ifndef SKP_SILK_PLC_FIX_H
-#define SKP_SILK_PLC_FIX_H
+#ifndef SILK_PLC_FIX_H
+#define SILK_PLC_FIX_H
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 #define BWE_COEF                        0.99
 #define V_PITCH_GAIN_START_MIN_Q14      11469           /* 0.7 in Q14                       */
@@ -42,35 +42,35 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define LOG2_INV_LPC_GAIN_LOW_THRES     8               /* 2^8 = 24 dB LPC gain             */
 #define PITCH_DRIFT_FAC_Q16             655             /* 0.01 in Q16                      */
 
-void SKP_Silk_PLC_Reset(
-    SKP_Silk_decoder_state      *psDec              /* I/O Decoder state        */
+void silk_PLC_Reset(
+    silk_decoder_state      *psDec              /* I/O Decoder state        */
 );
 
-void SKP_Silk_PLC(
-    SKP_Silk_decoder_state      *psDec,             /* I/O Decoder state        */
-    SKP_Silk_decoder_control    *psDecCtrl,         /* I/O Decoder control      */
+void silk_PLC(
+    silk_decoder_state      *psDec,             /* I/O Decoder state        */
+    silk_decoder_control    *psDecCtrl,         /* I/O Decoder control      */
     SKP_int16                   signal[],           /* I/O  signal              */
     SKP_int                     length,             /* I length of residual     */
     SKP_int                     lost                /* I Loss flag              */
 );
 
-void SKP_Silk_PLC_update(
-    SKP_Silk_decoder_state      *psDec,             /* I/O Decoder state        */
-    SKP_Silk_decoder_control    *psDecCtrl,         /* I/O Decoder control      */
+void silk_PLC_update(
+    silk_decoder_state      *psDec,             /* I/O Decoder state        */
+    silk_decoder_control    *psDecCtrl,         /* I/O Decoder control      */
     SKP_int16                   signal[],
     SKP_int                     length
 );
 
-void SKP_Silk_PLC_conceal(
-    SKP_Silk_decoder_state      *psDec,             /* I/O Decoder state        */
-    SKP_Silk_decoder_control    *psDecCtrl,         /* I/O Decoder control      */
+void silk_PLC_conceal(
+    silk_decoder_state      *psDec,             /* I/O Decoder state        */
+    silk_decoder_control    *psDecCtrl,         /* I/O Decoder control      */
     SKP_int16                   signal[],           /* O LPC residual signal    */
     SKP_int                     length              /* I length of signal       */
 );
 
-void SKP_Silk_PLC_glue_frames(
-    SKP_Silk_decoder_state      *psDec,             /* I/O decoder state        */
-    SKP_Silk_decoder_control    *psDecCtrl,         /* I/O Decoder control      */
+void silk_PLC_glue_frames(
+    silk_decoder_state      *psDec,             /* I/O decoder state        */
+    silk_decoder_control    *psDecCtrl,         /* I/O Decoder control      */
     SKP_int16                   signal[],           /* I/O signal               */
     SKP_int                     length              /* I length of signal       */
 );
diff --git a/silk/SKP_Silk_SigProc_FIX.h b/silk/silk_SigProc_FIX.h
similarity index 87%
rename from silk/SKP_Silk_SigProc_FIX.h
rename to silk/silk_SigProc_FIX.h
index 56782b3a..79e62597 100644
--- a/silk/SKP_Silk_SigProc_FIX.h
+++ b/silk/silk_SigProc_FIX.h
@@ -25,26 +25,23 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-
-#ifndef _SKP_SILK_SIGPROC_FIX_H_
-#define _SKP_SILK_SIGPROC_FIX_H_
+#ifndef _SILK_SIGPROC_FIX_H_
+#define _SILK_SIGPROC_FIX_H_
 
 #ifdef  __cplusplus
 extern "C"
 {
 #endif
 
-//#define SKP_MACRO_COUNT /* Used to enable WMOPS counting */
+//#define SKP_MACRO_COUNT           /* Used to enable WMOPS counting */
 
-#define SKP_Silk_MAX_ORDER_LPC            16                    /* max order of the LPC analysis in schur() and k2a()    */
-#define SKP_Silk_MAX_CORRELATION_LENGTH   640                   /* max input length to the correlation                   */
-#include "SKP_Silk_typedef.h"
-#include <string.h>
-#include <stdlib.h>                                            /* for abs() */
-#include "SKP_Silk_resampler_structs.h"
-
-#	include "SKP_Silk_macros.h"
+#define SILK_MAX_ORDER_LPC            16                        /* max order of the LPC analysis in schur() and k2a()    */
 
+#include <stdlib.h>                                             /* for abs() */
+#include <string.h>                                             /* for memset(), memcpy(), memmove() */
+#include "silk_typedef.h"
+#include "silk_resampler_structs.h"
+#include "silk_macros.h"
 
 
 /********************************************************************/
@@ -54,25 +51,24 @@ extern "C"
 /*!
  * Initialize/reset the resampler state for a given pair of input/output sampling rates 
 */
-SKP_int SKP_Silk_resampler_init( 
-	SKP_Silk_resampler_state_struct	    *S,         /* I/O: Resampler state 			*/
+SKP_int silk_resampler_init( 
+	silk_resampler_state_struct	        *S,         /* I/O: Resampler state 			*/
 	SKP_int32							Fs_Hz_in,	/* I:	Input sampling rate (Hz)	*/
 	SKP_int32							Fs_Hz_out	/* I:	Output sampling rate (Hz)	*/
 );
 
-
 /*!
  * Clear the states of all resampling filters, without resetting sampling rate ratio 
  */
-SKP_int SKP_Silk_resampler_clear( 
-	SKP_Silk_resampler_state_struct	    *S          /* I/O: Resampler state 			*/
+SKP_int silk_resampler_clear( 
+	silk_resampler_state_struct	        *S          /* I/O: Resampler state 			*/
 );
 
 /*!
  * Resampler: convert from one sampling rate to another
  */
-SKP_int SKP_Silk_resampler( 
-	SKP_Silk_resampler_state_struct	    *S,         /* I/O: Resampler state 			*/
+SKP_int silk_resampler( 
+	silk_resampler_state_struct	        *S,         /* I/O: Resampler state 			*/
 	SKP_int16							out[],	    /* O:	Output signal 				*/
 	const SKP_int16						in[],	    /* I:	Input signal				*/
 	SKP_int32							inLen	    /* I:	Number of input samples		*/
@@ -81,7 +77,7 @@ SKP_int SKP_Silk_resampler(
 /*!
  Upsample 2x, low quality 
  */
-void SKP_Silk_resampler_up2(
+void silk_resampler_up2(
     SKP_int32                           *S,         /* I/O: State vector [ 2 ]                  */
     SKP_int16                           *out,       /* O:   Output signal [ 2 * len ]           */
     const SKP_int16                     *in,        /* I:   Input signal [ len ]                */
@@ -91,7 +87,7 @@ void SKP_Silk_resampler_up2(
 /*!
 * Downsample 2x, mediocre quality 
 */
-void SKP_Silk_resampler_down2(
+void silk_resampler_down2(
     SKP_int32                           *S,         /* I/O: State vector [ 2 ]                  */
     SKP_int16                           *out,       /* O:   Output signal [ len ]               */
     const SKP_int16                     *in,        /* I:   Input signal [ floor(len/2) ]       */
@@ -102,7 +98,7 @@ void SKP_Silk_resampler_down2(
 /*!
  * Downsample by a factor 2/3, low quality
 */
-void SKP_Silk_resampler_down2_3(
+void silk_resampler_down2_3(
     SKP_int32                           *S,         /* I/O: State vector [ 6 ]                  */
     SKP_int16                           *out,       /* O:   Output signal [ floor(2*inLen/3) ]  */
     const SKP_int16                     *in,        /* I:   Input signal [ inLen ]              */
@@ -112,7 +108,7 @@ void SKP_Silk_resampler_down2_3(
 /*!
  * Downsample by a factor 3, low quality
 */
-void SKP_Silk_resampler_down3(
+void silk_resampler_down3(
     SKP_int32                           *S,         /* I/O: State vector [ 8 ]                  */
     SKP_int16                           *out,       /* O:   Output signal [ floor(inLen/3) ]    */
     const SKP_int16                     *in,        /* I:   Input signal [ inLen ]              */
@@ -124,11 +120,11 @@ void SKP_Silk_resampler_down3(
  * slower than biquad() but uses more precise coefficients
  * can handle (slowly) varying coefficients 
  */
-void SKP_Silk_biquad_alt(
+void silk_biquad_alt(
     const SKP_int16     *in,           /* I:    input signal                 */
     const SKP_int32     *B_Q28,        /* I:    MA coefficients [3]          */
     const SKP_int32     *A_Q28,        /* I:    AR coefficients [2]          */
-    SKP_int32           *S,            /* I/O: state vector [2]              */
+    SKP_int32           *S,            /* I/O:  State vector [2]             */
     SKP_int16           *out,          /* O:    output signal                */
     const SKP_int32     len            /* I:    signal length (must be even) */
 );
@@ -136,19 +132,19 @@ void SKP_Silk_biquad_alt(
 /*! 
  * variable order MA filter. Prediction error filter implementation. Coeficients negated and starting with coef to x[n - 1]
  */
-void SKP_Silk_MA_Prediction(
+void silk_MA_Prediction(
     const SKP_int16      *in,          /* I:   Input signal                                */
     const SKP_int16      *B,           /* I:   MA prediction coefficients, Q12 [order]     */
     SKP_int32            *S,           /* I/O: State vector [order]                        */
     SKP_int16            *out,         /* O:   Output signal                               */
     const SKP_int32      len,          /* I:   Signal length                               */
-    const SKP_int32      order         /* I:  Filter order                                 */
+    const SKP_int32      order         /* I:   Filter order                                */
 );
 
 /*!
  * 16th order AR filter for LPC synthesis, coefficients are in Q12
  */
-void SKP_Silk_LPC_synthesis_order16(
+void silk_LPC_synthesis_order16(
     const SKP_int16      *in,          /* I:   excitation signal                            */
     const SKP_int16      *A_Q12,       /* I:   AR coefficients [16], between -8_Q0 and 8_Q0 */
     const SKP_int32      Gain_Q26,     /* I:   gain                                         */
@@ -158,8 +154,8 @@ void SKP_Silk_LPC_synthesis_order16(
 );
 
 /* variable order MA prediction error filter. */
-/* Inverse filter of SKP_Silk_LPC_synthesis_filter */
-void SKP_Silk_LPC_analysis_filter(
+/* Inverse filter of silk_LPC_synthesis_filter */
+void silk_LPC_analysis_filter(
     SKP_int16            *out,         /* O:   Output signal                               */
     const SKP_int16      *in,          /* I:   Input signal                                */
     const SKP_int16      *B,           /* I:   MA prediction coefficients, Q12 [order]     */
@@ -168,7 +164,7 @@ void SKP_Silk_LPC_analysis_filter(
 );
 
 /* even order AR filter */
-void SKP_Silk_LPC_synthesis_filter(
+void silk_LPC_synthesis_filter(
     const SKP_int16      *in,          /* I:   excitation signal                               */
     const SKP_int16      *A_Q12,       /* I:   AR coefficients [Order], between -8_Q0 and 8_Q0 */
     const SKP_int32      Gain_Q26,     /* I:   gain                                            */
@@ -179,14 +175,14 @@ void SKP_Silk_LPC_synthesis_filter(
 );
 
 /* Chirp (bandwidth expand) LP AR filter */
-void SKP_Silk_bwexpander( 
+void silk_bwexpander( 
     SKP_int16            *ar,          /* I/O  AR filter to be expanded (without leading 1)    */
     const SKP_int        d,            /* I    Length of ar                                    */
     SKP_int32            chirp_Q16     /* I    Chirp factor (typically in the range 0 to 1)    */
 );
 
 /* Chirp (bandwidth expand) LP AR filter */
-void SKP_Silk_bwexpander_32( 
+void silk_bwexpander_32( 
     SKP_int32            *ar,          /* I/O  AR filter to be expanded (without leading 1)    */
     const SKP_int        d,            /* I    Length of ar                                    */
     SKP_int32            chirp_Q16     /* I    Chirp factor in Q16                             */
@@ -194,20 +190,20 @@ void SKP_Silk_bwexpander_32(
 
 /* Compute inverse of LPC prediction gain, and                           */
 /* test if LPC coefficients are stable (all poles within unit circle)    */
-SKP_int SKP_Silk_LPC_inverse_pred_gain( /* O:  Returns 1 if unstable, otherwise 0          */
+SKP_int silk_LPC_inverse_pred_gain(     /* O:  Returns 1 if unstable, otherwise 0          */
     SKP_int32            *invGain_Q30,  /* O:  Inverse prediction gain, Q30 energy domain  */
     const SKP_int16      *A_Q12,        /* I:  Prediction coefficients, Q12 [order]        */
     const SKP_int        order          /* I:  Prediction order                            */
 );
 
-SKP_int SKP_Silk_LPC_inverse_pred_gain_Q24( /* O:   Returns 1 if unstable, otherwise 0      */
+SKP_int silk_LPC_inverse_pred_gain_Q24( /* O:   Returns 1 if unstable, otherwise 0      */
     SKP_int32           *invGain_Q30,   /* O:   Inverse prediction gain, Q30 energy domain  */
     const SKP_int32     *A_Q24,         /* I:   Prediction coefficients, Q24 [order]        */
     const SKP_int       order           /* I:   Prediction order                            */
 );
 
 /* split signal in two decimated bands using first-order allpass filters */
-void SKP_Silk_ana_filt_bank_1(
+void silk_ana_filt_bank_1(
     const SKP_int16      *in,           /* I:   Input signal [N]        */
     SKP_int32            *S,            /* I/O: State vector [2]        */
     SKP_int16            *outL,         /* O:   Low band [N/2]          */
@@ -221,24 +217,24 @@ void SKP_Silk_ana_filt_bank_1(
 
 /* approximation of 128 * log2() (exact inverse of approx 2^() below) */
 /* convert input to a log scale    */
-SKP_int32 SKP_Silk_lin2log(const SKP_int32 inLin);        /* I: input in linear scale        */
+SKP_int32 silk_lin2log(const SKP_int32 inLin);        /* I: input in linear scale        */
 
 /* Approximation of a sigmoid function */
-SKP_int SKP_Silk_sigm_Q15(SKP_int in_Q5);
+SKP_int silk_sigm_Q15(SKP_int in_Q5);
 
 /* approximation of 2^() (exact inverse of approx log2() above) */
 /* convert input to a linear scale    */ 
-SKP_int32 SKP_Silk_log2lin(const SKP_int32 inLog_Q7);    /* I: input on log scale */ 
+SKP_int32 silk_log2lin(const SKP_int32 inLog_Q7);    /* I: input on log scale */ 
 
 /* Function that returns the maximum absolut value of the input vector */
-SKP_int16 SKP_Silk_int16_array_maxabs(  /* O   Maximum absolute value, max: 2^15-1   */
+SKP_int16 silk_int16_array_maxabs(      /* O   Maximum absolute value, max: 2^15-1   */
     const SKP_int16     *vec,           /* I   Input vector  [len]                   */ 
     const SKP_int32     len             /* I   Length of input vector                */
 );
 
 /* Compute number of bits to right shift the sum of squares of a vector    */
 /* of int16s to make it fit in an int32                                    */
-void SKP_Silk_sum_sqr_shift(
+void silk_sum_sqr_shift(
     SKP_int32           *energy,        /* O   Energy of x, after shifting to the right            */
     SKP_int             *shift,         /* O   Number of bits right shift applied to energy        */
     const SKP_int16     *x,             /* I   Input vector                                        */
@@ -248,7 +244,7 @@ void SKP_Silk_sum_sqr_shift(
 /* Calculates the reflection coefficients from the correlation sequence    */
 /* Faster than schur64(), but much less accurate.                          */
 /* uses SMLAWB(), requiring armv5E and higher.                             */ 
-SKP_int32 SKP_Silk_schur(               /* O:    Returns residual energy                   */
+SKP_int32 silk_schur(                   /* O:    Returns residual energy                   */
     SKP_int16           *rc_Q15,        /* O:    reflection coefficients [order] Q15       */
     const SKP_int32     *c,             /* I:    correlations [order+1]                    */
     const SKP_int32     order           /* I:    prediction order                          */
@@ -257,21 +253,21 @@ SKP_int32 SKP_Silk_schur(               /* O:    Returns residual energy
 /* Calculates the reflection coefficients from the correlation sequence    */
 /* Slower than schur(), but more accurate.                                 */
 /* Uses SMULL(), available on armv4                                        */
-SKP_int32 SKP_Silk_schur64(             /* O:  returns residual energy                     */
+SKP_int32 silk_schur64(                 /* O:  returns residual energy                     */
     SKP_int32           rc_Q16[],       /* O:  Reflection coefficients [order] Q16         */
     const SKP_int32     c[],            /* I:  Correlations [order+1]                      */
     SKP_int32           order           /* I:  Prediction order                            */
 );
 
 /* Step up function, converts reflection coefficients to prediction coefficients */
-void SKP_Silk_k2a(
+void silk_k2a(
     SKP_int32           *A_Q24,         /* O:  Prediction coefficients [order] Q24         */
     const SKP_int16     *rc_Q15,        /* I:  Reflection coefficients [order] Q15         */
     const SKP_int32     order           /* I:  Prediction order                            */
 );
 
 /* Step up function, converts reflection coefficients to prediction coefficients */
-void SKP_Silk_k2a_Q16(
+void silk_k2a_Q16(
     SKP_int32           *A_Q24,         /* O:  Prediction coefficients [order] Q24         */
     const SKP_int32     *rc_Q16,        /* I:  Reflection coefficients [order] Q16         */
     const SKP_int32     order           /* I:  Prediction order                            */
@@ -282,7 +278,7 @@ void SKP_Silk_k2a_Q16(
 /*    1 -> sine window from 0 to pi/2                                       */
 /*    2 -> sine window from pi/2 to pi                                      */
 /* every other sample of window is linearly interpolated, for speed         */
-void SKP_Silk_apply_sine_window(
+void silk_apply_sine_window(
     SKP_int16           px_win[],       /* O  Pointer to windowed signal                  */
     const SKP_int16     px[],           /* I  Pointer to input signal                     */
     const SKP_int       win_type,       /* I  Selects a window type                       */
@@ -290,7 +286,7 @@ void SKP_Silk_apply_sine_window(
 );
 
 /* Compute autocorrelation */
-void SKP_Silk_autocorr( 
+void silk_autocorr( 
     SKP_int32           *results,       /* O  Result (length correlationCount)            */
     SKP_int             *scale,         /* O  Scaling of the correlation vector           */
     const SKP_int16     *inputData,     /* I  Input data to correlate                     */
@@ -299,11 +295,11 @@ void SKP_Silk_autocorr(
 );
 
 /* Pitch estimator */
-#define SKP_Silk_PE_MIN_COMPLEX        0
-#define SKP_Silk_PE_MID_COMPLEX        1
-#define SKP_Silk_PE_MAX_COMPLEX        2
+#define SILK_PE_MIN_COMPLEX        0
+#define SILK_PE_MID_COMPLEX        1
+#define SILK_PE_MAX_COMPLEX        2
 
-void SKP_Silk_decode_pitch(
+void silk_decode_pitch(
     SKP_int16       lagIndex,                        /* I                             */
     SKP_int8        contourIndex,                    /* O                             */
     SKP_int         pitch_lags[],                    /* O 4 pitch values              */
@@ -311,7 +307,7 @@ void SKP_Silk_decode_pitch(
     const SKP_int   nb_subfr                         /* I number of sub frames        */
 );
 
-SKP_int SKP_Silk_pitch_analysis_core(    /* O    Voicing estimate: 0 voiced, 1 unvoiced                     */
+SKP_int silk_pitch_analysis_core(        /* O    Voicing estimate: 0 voiced, 1 unvoiced                     */
     const SKP_int16  *signal,            /* I    Signal of length PE_FRAME_LENGTH_MS*Fs_kHz                 */
     SKP_int          *pitch_out,         /* O    4 pitch lag values                                         */
     SKP_int16        *lagIndex,          /* O    Lag Index                                                  */
@@ -325,14 +321,7 @@ SKP_int SKP_Silk_pitch_analysis_core(    /* O    Voicing estimate: 0 voiced, 1 u
     const SKP_int    nb_subfr            /* I    number of 5 ms subframes                                   */
 );
 
-/* parameter defining the size and accuracy of the piecewise linear    */
-/* cosine approximatin table.                                        */
-
-#define LSF_COS_TAB_SZ_FIX      128
-/* rom table with cosine values */
-extern const SKP_int SKP_Silk_LSFCosTab_FIX_Q12[ LSF_COS_TAB_SZ_FIX + 1 ];
-
-void SKP_Silk_LPC_fit(
+void silk_LPC_fit(
           SKP_int16    *a_QQ,            /* O    stabilized LPC vector, Q(24-rshift) [L]        */
           SKP_int32    *a_Q24,           /* I    LPC vector [L]                                 */
     const SKP_int      QQ,               /* I    Q domain of output LPC vector                  */
@@ -341,54 +330,54 @@ void SKP_Silk_LPC_fit(
 
 /* Compute Normalized Line Spectral Frequencies (NLSFs) from whitening filter coefficients      */
 /* If not all roots are found, the a_Q16 coefficients are bandwidth expanded until convergence. */
-void SKP_Silk_A2NLSF(
+void silk_A2NLSF(
     SKP_int16          *NLSF,            /* O    Normalized Line Spectral Frequencies, Q15 (0 - (2^15-1)), [d] */
     SKP_int32          *a_Q16,           /* I/O  Monic whitening filter coefficients in Q16 [d]                */
     const SKP_int      d                 /* I    Filter order (must be even)                                   */
 );
 
 /* compute whitening filter coefficients from normalized line spectral frequencies */
-void SKP_Silk_NLSF2A(
+void silk_NLSF2A(
     SKP_int16          *a,               /* o    monic whitening filter coefficients in Q12,  [d]    */
     const SKP_int16    *NLSF,            /* i    normalized line spectral frequencies in Q15, [d]    */
     const SKP_int      d                 /* i    filter order (should be even)                       */
 );
 
-void SKP_Silk_insertion_sort_increasing(
+void silk_insertion_sort_increasing(
     SKP_int32            *a,            /* I/O   Unsorted / Sorted vector                */
-    SKP_int              *index,        /* O:    Index vector for the sorted elements    */
+    SKP_int              *idx,          /* O:    Index vector for the sorted elements    */
     const SKP_int        L,             /* I:    Vector length                           */
     const SKP_int        K              /* I:    Number of correctly sorted positions    */
 );
 
-void SKP_Silk_insertion_sort_decreasing_int16(
+void silk_insertion_sort_decreasing_int16(
     SKP_int16            *a,            /* I/O:  Unsorted / Sorted vector                */
-    SKP_int              *index,        /* O:    Index vector for the sorted elements    */
+    SKP_int              *idx,          /* O:    Index vector for the sorted elements    */
     const SKP_int        L,             /* I:    Vector length                           */
     const SKP_int        K              /* I:    Number of correctly sorted positions    */
 );
 
-void SKP_Silk_insertion_sort_increasing_all_values_int16(
+void silk_insertion_sort_increasing_all_values_int16(
      SKP_int16           *a,            /* I/O:  Unsorted / Sorted vector                */
      const SKP_int       L              /* I:    Vector length                           */
 );
 
 /* NLSF stabilizer, for a single input data vector */
-void SKP_Silk_NLSF_stabilize(
+void silk_NLSF_stabilize(
           SKP_int16      *NLSF_Q15,      /* I/O:  Unstable/stabilized normalized LSF vector in Q15 [L]                    */
     const SKP_int16      *NDeltaMin_Q15, /* I:    Normalized delta min vector in Q15, NDeltaMin_Q15[L] must be >= 1 [L+1] */
     const SKP_int        L               /* I:    Number of NLSF parameters in the input vector                           */
 );
 
 /* Laroia low complexity NLSF weights */
-void SKP_Silk_NLSF_VQ_weights_laroia(
+void silk_NLSF_VQ_weights_laroia(
     SKP_int16            *pNLSFW_Q5,     /* O:    Pointer to input vector weights            [D x 1]       */
     const SKP_int16      *pNLSF_Q15,     /* I:    Pointer to input vector                    [D x 1]       */
     const SKP_int        D               /* I:    Input vector dimension (even)                            */
 );
 
 /* Compute reflection coefficients from input signal */
-void SKP_Silk_burg_modified(        
+void silk_burg_modified(        
     SKP_int32            *res_nrg,           /* O   residual energy                                                 */
     SKP_int              *res_nrgQ,          /* O   residual energy Q value                                         */
     SKP_int32            A_Q16[],            /* O   prediction coefficients (length order)                          */
@@ -400,7 +389,7 @@ void SKP_Silk_burg_modified(
 );
 
 /* Copy and multiply a vector by a constant */
-void SKP_Silk_scale_copy_vector16( 
+void silk_scale_copy_vector16( 
     SKP_int16            *data_out, 
     const SKP_int16      *data_in, 
     SKP_int32            gain_Q16,           /* I:   gain in Q16   */
@@ -408,7 +397,7 @@ void SKP_Silk_scale_copy_vector16(
 );
 
 /* Some for the LTP related function requires Q26 to work.*/
-void SKP_Silk_scale_vector32_Q26_lshift_18( 
+void silk_scale_vector32_Q26_lshift_18( 
     SKP_int32            *data1,             /* I/O: Q0/Q18        */
     SKP_int32            gain_Q26,           /* I:   Q26           */
     SKP_int              dataSize            /* I:   length        */
@@ -419,20 +408,20 @@ void SKP_Silk_scale_vector32_Q26_lshift_18(
 /********************************************************************/
 
 /*    return sum(inVec1[i]*inVec2[i])    */
-SKP_int32 SKP_Silk_inner_prod_aligned(
+SKP_int32 silk_inner_prod_aligned(
     const SKP_int16 *const  inVec1,     /*    I input vector 1    */
     const SKP_int16 *const  inVec2,     /*    I input vector 2    */
     const SKP_int           len         /*    I vector lengths    */
 );
 
-SKP_int32 SKP_Silk_inner_prod_aligned_scale(
+SKP_int32 silk_inner_prod_aligned_scale(
     const SKP_int16 *const  inVec1,     /*    I input vector 1          */
     const SKP_int16 *const  inVec2,     /*    I input vector 2          */
     const SKP_int           scale,      /*    I number of bits to shift */
     const SKP_int           len         /*    I vector lengths          */
 );
 
-SKP_int64 SKP_Silk_inner_prod16_aligned_64(
+SKP_int64 silk_inner_prod16_aligned_64(
     const SKP_int16         *inVec1,    /*    I input vector 1    */ 
     const SKP_int16         *inVec2,    /*    I input vector 2    */
     const SKP_int           len         /*    I vector lengths    */
@@ -446,7 +435,7 @@ SKP_int64 SKP_Silk_inner_prod16_aligned_64(
    left. Output is 32bit int.
    Note: contemporary compilers recognize the C expression below and
    compile it into a 'ror' instruction if available. No need for inline ASM! */
-SKP_INLINE SKP_int32 SKP_ROR32( SKP_int32 a32, SKP_int rot )
+SKP_INLINE SKP_int32 silk_ROR32( SKP_int32 a32, SKP_int rot )
 {
     SKP_uint32 x = (SKP_uint32) a32;
     SKP_uint32 r = (SKP_uint32) rot;
@@ -506,7 +495,7 @@ SKP_INLINE SKP_int32 SKP_ROR32( SKP_int32 a32, SKP_int rot )
 #define SKP_DIV32_16(a32, b16)             ((SKP_int32)((a32) / (b16)))
 #define SKP_DIV32(a32, b32)                ((SKP_int32)((a32) / (b32)))
 
-// These macros enables checking for overflow in SKP_Silk_API_Debug.h
+// These macros enables checking for overflow in silk_API_Debug.h
 #define SKP_ADD16(a, b)                    ((a) + (b))
 #define SKP_ADD32(a, b)                    ((a) + (b))
 #define SKP_ADD64(a, b)                    ((a) + (b))
@@ -581,15 +570,15 @@ SKP_INLINE SKP_int32 SKP_ROR32( SKP_int32 a32, SKP_int rot )
 #define SKP_RSHIFT_ROUND64(a, shift)      ((shift) == 1 ? ((a) >> 1) + ((a) & 1) : (((a) >> ((shift) - 1)) + 1) >> 1)
 
 /* Number of rightshift required to fit the multiplication */
-#define SKP_NSHIFT_MUL_32_32(a, b)        ( -(31- (32-SKP_Silk_CLZ32(SKP_abs(a)) + (32-SKP_Silk_CLZ32(SKP_abs(b))))) )
-#define SKP_NSHIFT_MUL_16_16(a, b)        ( -(15- (16-SKP_Silk_CLZ16(SKP_abs(a)) + (16-SKP_Silk_CLZ16(SKP_abs(b))))) )
+#define SKP_NSHIFT_MUL_32_32(a, b)        ( -(31- (32-silk_CLZ32(SKP_abs(a)) + (32-silk_CLZ32(SKP_abs(b))))) )
+#define SKP_NSHIFT_MUL_16_16(a, b)        ( -(15- (16-silk_CLZ16(SKP_abs(a)) + (16-silk_CLZ16(SKP_abs(b))))) )
 
 
 #define SKP_min(a, b)                     (((a) < (b)) ? (a) : (b)) 
 #define SKP_max(a, b)                     (((a) > (b)) ? (a) : (b))
 
 /* Macro to convert floating-point constants to fixed-point */
-#define SKP_FIX_CONST( C, Q )           ((SKP_int32)((C) * ((SKP_int64)1 << (Q)) + 0.5))
+#define SILK_FIX_CONST( C, Q )           ((SKP_int32)((C) * ((SKP_int64)1 << (Q)) + 0.5))
 
 /* SKP_min() versions with typecast in the function call */
 SKP_INLINE SKP_int SKP_min_int(SKP_int a, SKP_int b)
@@ -660,9 +649,9 @@ SKP_INLINE SKP_int64 SKP_max_64(SKP_int64 a, SKP_int64 b)
 // the following seems faster on x86
 #define SKP_SMMUL(a32, b32)              (SKP_int32)SKP_RSHIFT64(SKP_SMULL((a32), (b32)), 32)
 
-#include "SKP_Silk_Inlines.h"
-#include "SKP_Silk_MacroCount.h"
-#include "SKP_Silk_MacroDebug.h"
+#include "silk_Inlines.h"
+#include "silk_MacroCount.h"
+#include "silk_MacroDebug.h"
 
 #ifdef  __cplusplus
 }
diff --git a/silk/SKP_Silk_VAD.c b/silk/silk_VAD.c
similarity index 84%
rename from silk/SKP_Silk_VAD.c
rename to silk/silk_VAD.c
index e929d144..15295fde 100644
--- a/silk/SKP_Silk_VAD.c
+++ b/silk/silk_VAD.c
@@ -26,19 +26,19 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
 #include <stdlib.h>
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 /**********************************/
 /* Initialization of the Silk VAD */
 /**********************************/
-SKP_int SKP_Silk_VAD_Init(                              /* O    Return value, 0 if success                  */ 
-    SKP_Silk_VAD_state              *psSilk_VAD         /* I/O  Pointer to Silk VAD state                   */ 
+SKP_int silk_VAD_Init(                              /* O    Return value, 0 if success                  */ 
+    silk_VAD_state              *psSilk_VAD         /* I/O  Pointer to Silk VAD state                   */ 
 )
 {
     SKP_int b, ret = 0;
 
     /* reset state memory */
-    SKP_memset( psSilk_VAD, 0, sizeof( SKP_Silk_VAD_state ) );
+    SKP_memset( psSilk_VAD, 0, sizeof( silk_VAD_state ) );
 
     /* init noise levels */
     /* Initialize array with approx pink noise levels (psd proportional to inverse of frequency) */
@@ -62,13 +62,13 @@ SKP_int SKP_Silk_VAD_Init(                              /* O    Return value, 0
 }
 
 /* Weighting factors for tilt measure */
-const static SKP_int32 tiltWeights[ VAD_N_BANDS ] = { 30000, 6000, -12000, -12000 };
+static const SKP_int32 tiltWeights[ VAD_N_BANDS ] = { 30000, 6000, -12000, -12000 };
 
 /***************************************/
 /* Get the speech activity level in Q8 */
 /***************************************/
-SKP_int SKP_Silk_VAD_GetSA_Q8(                      /* O    Return value, 0 if success                  */
-    SKP_Silk_encoder_state      *psEncC,            /* I/O  Encoder state                               */
+SKP_int silk_VAD_GetSA_Q8(                          /* O    Return value, 0 if success                  */
+    silk_encoder_state          *psEncC,            /* I/O  Encoder state                               */
     const SKP_int16             pIn[]               /* I    PCM input                                   */
 )
 {
@@ -81,7 +81,7 @@ SKP_int SKP_Silk_VAD_GetSA_Q8(                      /* O    Return value, 0 if s
     SKP_int32 NrgToNoiseRatio_Q8[ VAD_N_BANDS ];
     SKP_int32 speech_nrg, x_tmp;
     SKP_int   ret = 0;
-    SKP_Silk_VAD_state *psSilk_VAD = &psEncC->sVAD;
+    silk_VAD_state *psSilk_VAD = &psEncC->sVAD;
 
     /* Safety checks */
     SKP_assert( VAD_N_BANDS == 4 );
@@ -93,13 +93,13 @@ SKP_int SKP_Silk_VAD_GetSA_Q8(                      /* O    Return value, 0 if s
     /* Filter and Decimate */
     /***********************/
     /* 0-8 kHz to 0-4 kHz and 4-8 kHz */
-    SKP_Silk_ana_filt_bank_1( pIn,          &psSilk_VAD->AnaState[  0 ], &X[ 0 ][ 0 ], &X[ 3 ][ 0 ], psEncC->frame_length );        
+    silk_ana_filt_bank_1( pIn,          &psSilk_VAD->AnaState[  0 ], &X[ 0 ][ 0 ], &X[ 3 ][ 0 ], psEncC->frame_length );        
     
     /* 0-4 kHz to 0-2 kHz and 2-4 kHz */
-    SKP_Silk_ana_filt_bank_1( &X[ 0 ][ 0 ], &psSilk_VAD->AnaState1[ 0 ], &X[ 0 ][ 0 ], &X[ 2 ][ 0 ], SKP_RSHIFT( psEncC->frame_length, 1 ) );
+    silk_ana_filt_bank_1( &X[ 0 ][ 0 ], &psSilk_VAD->AnaState1[ 0 ], &X[ 0 ][ 0 ], &X[ 2 ][ 0 ], SKP_RSHIFT( psEncC->frame_length, 1 ) );
     
     /* 0-2 kHz to 0-1 kHz and 1-2 kHz */
-    SKP_Silk_ana_filt_bank_1( &X[ 0 ][ 0 ], &psSilk_VAD->AnaState2[ 0 ], &X[ 0 ][ 0 ], &X[ 1 ][ 0 ], SKP_RSHIFT( psEncC->frame_length, 2 ) );
+    silk_ana_filt_bank_1( &X[ 0 ][ 0 ], &psSilk_VAD->AnaState2[ 0 ], &X[ 0 ][ 0 ], &X[ 1 ][ 0 ], SKP_RSHIFT( psEncC->frame_length, 2 ) );
 
     /*********************************************/
     /* HP filter on lowest band (differentiator) */
@@ -156,7 +156,7 @@ SKP_int SKP_Silk_VAD_GetSA_Q8(                      /* O    Return value, 0 if s
     /********************/
     /* Noise estimation */
     /********************/
-    SKP_Silk_VAD_GetNoiseLevels( &Xnrg[ 0 ], psSilk_VAD );
+    silk_VAD_GetNoiseLevels( &Xnrg[ 0 ], psSilk_VAD );
 
     /***********************************************/
     /* Signal-plus-noise to noise ratio estimation */
@@ -174,7 +174,7 @@ SKP_int SKP_Silk_VAD_GetSA_Q8(                      /* O    Return value, 0 if s
             }
 
             /* Convert to log domain */
-            SNR_Q7 = SKP_Silk_lin2log( NrgToNoiseRatio_Q8[ b ] ) - 8 * 128;
+            SNR_Q7 = silk_lin2log( NrgToNoiseRatio_Q8[ b ] ) - 8 * 128;
 
             /* Sum-of-squares */
             sumSquared = SKP_SMLABB( sumSquared, SNR_Q7, SNR_Q7 );          /* Q14 */
@@ -182,7 +182,7 @@ SKP_int SKP_Silk_VAD_GetSA_Q8(                      /* O    Return value, 0 if s
             /* Tilt measure */
             if( speech_nrg < ( 1 << 20 ) ) {
                 /* Scale down SNR value for small subband speech energies */
-                SNR_Q7 = SKP_SMULWB( SKP_LSHIFT( SKP_Silk_SQRT_APPROX( speech_nrg ), 6 ), SNR_Q7 );
+                SNR_Q7 = SKP_SMULWB( SKP_LSHIFT( silk_SQRT_APPROX( speech_nrg ), 6 ), SNR_Q7 );
             }
             input_tilt = SKP_SMLAWB( input_tilt, tiltWeights[ b ], SNR_Q7 );
         } else {
@@ -194,17 +194,17 @@ SKP_int SKP_Silk_VAD_GetSA_Q8(                      /* O    Return value, 0 if s
     sumSquared = SKP_DIV32_16( sumSquared, VAD_N_BANDS ); /* Q14 */
 
     /* Root-mean-square approximation, scale to dBs, and write to output pointer */
-    pSNR_dB_Q7 = ( SKP_int16 )( 3 * SKP_Silk_SQRT_APPROX( sumSquared ) ); /* Q7 */
+    pSNR_dB_Q7 = ( SKP_int16 )( 3 * silk_SQRT_APPROX( sumSquared ) ); /* Q7 */
 
     /*********************************/
     /* Speech Probability Estimation */
     /*********************************/
-    SA_Q15 = SKP_Silk_sigm_Q15( SKP_SMULWB( VAD_SNR_FACTOR_Q16, pSNR_dB_Q7 ) - VAD_NEGATIVE_OFFSET_Q5 );
+    SA_Q15 = silk_sigm_Q15( SKP_SMULWB( VAD_SNR_FACTOR_Q16, pSNR_dB_Q7 ) - VAD_NEGATIVE_OFFSET_Q5 );
 
     /**************************/
     /* Frequency Tilt Measure */
     /**************************/
-    psEncC->input_tilt_Q15 = SKP_LSHIFT( SKP_Silk_sigm_Q15( input_tilt ) - 16384, 1 );
+    psEncC->input_tilt_Q15 = SKP_LSHIFT( silk_sigm_Q15( input_tilt ) - 16384, 1 );
 
     /**************************************************/
     /* Scale the sigmoid output based on power levels */
@@ -226,7 +226,7 @@ SKP_int SKP_Silk_VAD_GetSA_Q8(                      /* O    Return value, 0 if s
         }
 
         /* square-root */
-        speech_nrg = SKP_Silk_SQRT_APPROX( speech_nrg );
+        speech_nrg = silk_SQRT_APPROX( speech_nrg );
         SA_Q15 = SKP_SMULWB( 32768 + speech_nrg, SA_Q15 ); 
     }
 
@@ -249,9 +249,9 @@ SKP_int SKP_Silk_VAD_GetSA_Q8(                      /* O    Return value, 0 if s
             NrgToNoiseRatio_Q8[ b ] - psSilk_VAD->NrgRatioSmth_Q8[ b ], smooth_coef_Q16 );
 
         /* signal to noise ratio in dB per band */
-        SNR_Q7 = 3 * ( SKP_Silk_lin2log( psSilk_VAD->NrgRatioSmth_Q8[b] ) - 8 * 128 );
+        SNR_Q7 = 3 * ( silk_lin2log( psSilk_VAD->NrgRatioSmth_Q8[b] ) - 8 * 128 );
         /* quality = sigmoid( 0.25 * ( SNR_dB - 16 ) ); */
-        psEncC->input_quality_bands_Q15[ b ] = SKP_Silk_sigm_Q15( SKP_RSHIFT( SNR_Q7 - 16 * 128, 4 ) );
+        psEncC->input_quality_bands_Q15[ b ] = silk_sigm_Q15( SKP_RSHIFT( SNR_Q7 - 16 * 128, 4 ) );
     }
 
     return( ret );
@@ -260,9 +260,9 @@ SKP_int SKP_Silk_VAD_GetSA_Q8(                      /* O    Return value, 0 if s
 /**************************/
 /* Noise level estimation */
 /**************************/
-void SKP_Silk_VAD_GetNoiseLevels(
+void silk_VAD_GetNoiseLevels(
     const SKP_int32                 pX[ VAD_N_BANDS ],  /* I    subband energies                            */
-    SKP_Silk_VAD_state              *psSilk_VAD         /* I/O  Pointer to Silk VAD state                   */ 
+    silk_VAD_state              *psSilk_VAD         /* I/O  Pointer to Silk VAD state                   */ 
 )
 {
     SKP_int   k;
diff --git a/silk/SKP_Silk_VQ_WMat_EC.c b/silk/silk_VQ_WMat_EC.c
similarity index 97%
rename from silk/SKP_Silk_VQ_WMat_EC.c
rename to silk/silk_VQ_WMat_EC.c
index 1bcd91c2..bf123eb7 100644
--- a/silk/SKP_Silk_VQ_WMat_EC.c
+++ b/silk/silk_VQ_WMat_EC.c
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 /* Entropy constrained matrix-weighted VQ, hard-coded to 5-element vectors, for a single input data vector */
-void SKP_Silk_VQ_WMat_EC(
+void silk_VQ_WMat_EC(
     SKP_int8                        *ind,               /* O    index of best codebook vector               */
     SKP_int32                       *rate_dist_Q14,     /* O    best weighted quantization error + mu * rate*/
     const SKP_int16                 *in_Q14,            /* I    input vector to be quantized                */
diff --git a/silk/SKP_Silk_ana_filt_bank_1.c b/silk/silk_ana_filt_bank_1.c
similarity index 82%
rename from silk/SKP_Silk_ana_filt_bank_1.c
rename to silk/silk_ana_filt_bank_1.c
index 66bc6a44..7ad8b926 100644
--- a/silk/SKP_Silk_ana_filt_bank_1.c
+++ b/silk/silk_ana_filt_bank_1.c
@@ -25,15 +25,7 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*                                                                          *
- * SKP_ana_filt_bank_1.c                                                    *
- *                                                                          *
- * Split signal into two decimated bands using first-order allpass filters  *
- *                                                                          *
- * Copyright 2006 (c), Skype Limited                                        *
- * Date: 060221                                                             *
- *                                                                          */
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
 /* Coefficients for 2-band filter bank based on first-order allpass filters */
 // old
@@ -41,7 +33,7 @@ static SKP_int16 A_fb1_20[ 1 ] = {  5394 << 1 };
 static SKP_int16 A_fb1_21[ 1 ] = { 20623 << 1 };        /* wrap-around to negative number is intentional */
 
 /* Split signal into two decimated bands using first-order allpass filters */
-void SKP_Silk_ana_filt_bank_1(
+void silk_ana_filt_bank_1(
     const SKP_int16      *in,        /* I:   Input signal [N]        */
     SKP_int32            *S,         /* I/O: State vector [2]        */
     SKP_int16            *outL,      /* O:   Low band [N/2]          */
diff --git a/silk/SKP_Silk_apply_sine_window.c b/silk/silk_apply_sine_window.c
similarity index 96%
rename from silk/SKP_Silk_apply_sine_window.c
rename to silk/silk_apply_sine_window.c
index 87d71f89..ce8acf9c 100644
--- a/silk/SKP_Silk_apply_sine_window.c
+++ b/silk/silk_apply_sine_window.c
@@ -25,7 +25,7 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
 /* Apply sine window to signal vector.                                      */
 /* Window types:                                                            */
@@ -43,7 +43,7 @@ static SKP_int16 freq_table_Q16[ 27 ] = {
     2313,    2214,    2123,    2038,    1961,    1889,    1822,    1760,    1702,
 };
 
-void SKP_Silk_apply_sine_window(
+void silk_apply_sine_window(
     SKP_int16                        px_win[],            /* O    Pointer to windowed signal                  */
     const SKP_int16                  px[],                /* I    Pointer to input signal                     */
     const SKP_int                    win_type,            /* I    Selects a window type                       */
diff --git a/silk/SKP_Silk_array_maxabs.c b/silk/silk_array_maxabs.c
similarity index 75%
rename from silk/SKP_Silk_array_maxabs.c
rename to silk/silk_array_maxabs.c
index 90b58b2a..8fd59111 100644
--- a/silk/SKP_Silk_array_maxabs.c
+++ b/silk/silk_array_maxabs.c
@@ -25,19 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*                                                                      *
- * SKP_Silk_int16_array_maxabs.c                                      *
- *                                                                      *
- * Function that returns the maximum absolut value of                   *
- * the input vector                                                     *
- *                                                                      *
- * Copyright 2006 (c), Skype Limited                                    *
- * Date: 060221                                                         *
- *                                                                      */
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
 /* Function that returns the maximum absolut value of the input vector */
-SKP_int16 SKP_Silk_int16_array_maxabs(    /* O    Maximum absolute value, max: 2^15-1   */
+SKP_int16 silk_int16_array_maxabs(    /* O    Maximum absolute value, max: 2^15-1   */
     const SKP_int16        *vec,            /* I    Input vector  [len]                   */
     const SKP_int32        len              /* I    Length of input vector                */
 )                    
diff --git a/silk/SKP_Silk_autocorr.c b/silk/silk_autocorr.c
similarity index 87%
rename from silk/SKP_Silk_autocorr.c
rename to silk/silk_autocorr.c
index c7f8b292..1b613639 100644
--- a/silk/SKP_Silk_autocorr.c
+++ b/silk/silk_autocorr.c
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
 /* Compute autocorrelation */
-void SKP_Silk_autocorr( 
+void silk_autocorr( 
     SKP_int32        *results,                   /* O    Result (length correlationCount)            */
     SKP_int          *scale,                     /* O    Scaling of the correlation vector           */
     const SKP_int16  *inputData,                 /* I    Input data to correlate                     */
@@ -42,13 +42,13 @@ void SKP_Silk_autocorr(
     corrCount = SKP_min_int( inputDataSize, correlationCount );
 
     /* compute energy (zero-lag correlation) */
-    corr64 = SKP_Silk_inner_prod16_aligned_64( inputData, inputData, inputDataSize );
+    corr64 = silk_inner_prod16_aligned_64( inputData, inputData, inputDataSize );
 
     /* deal with all-zero input data */
     corr64 += 1;
 
     /* number of leading zeros */
-    lz = SKP_Silk_CLZ64( corr64 );
+    lz = silk_CLZ64( corr64 );
 
     /* scaling: number of right shifts applied to correlations */
     nRightShifts = 35 - lz;
@@ -59,14 +59,14 @@ void SKP_Silk_autocorr(
 
         /* compute remaining correlations based on int32 inner product */
           for( i = 1; i < corrCount; i++ ) {
-            results[ i ] = SKP_LSHIFT( SKP_Silk_inner_prod_aligned( inputData, inputData + i, inputDataSize - i ), -nRightShifts );
+            results[ i ] = SKP_LSHIFT( silk_inner_prod_aligned( inputData, inputData + i, inputDataSize - i ), -nRightShifts );
         }
     } else {
         results[ 0 ] = (SKP_int32)SKP_CHECK_FIT32( SKP_RSHIFT64( corr64, nRightShifts ) );
 
         /* compute remaining correlations based on int64 inner product */
           for( i = 1; i < corrCount; i++ ) {
-            results[ i ] =  (SKP_int32)SKP_CHECK_FIT32( SKP_RSHIFT64( SKP_Silk_inner_prod16_aligned_64( inputData, inputData + i, inputDataSize - i ), nRightShifts ) );
+            results[ i ] =  (SKP_int32)SKP_CHECK_FIT32( SKP_RSHIFT64( silk_inner_prod16_aligned_64( inputData, inputData + i, inputDataSize - i ), nRightShifts ) );
         }
     }
 }
diff --git a/silk/SKP_Silk_biquad_alt.c b/silk/silk_biquad_alt.c
similarity index 95%
rename from silk/SKP_Silk_biquad_alt.c
rename to silk/silk_biquad_alt.c
index f7ffc33d..74bf2c45 100644
--- a/silk/SKP_Silk_biquad_alt.c
+++ b/silk/silk_biquad_alt.c
@@ -26,16 +26,16 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
 /*                                                                      *
- * SKP_Silk_biquad_alt.c                                              *
+ * silk_biquad_alt.c                                              *
  *                                                                      *
  * Second order ARMA filter                                             *
  * Can handle slowly varying filter coefficients                        *
  *                                                                      */
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
 
 /* Second order ARMA filter, alternative implementation */
-void SKP_Silk_biquad_alt(
+void silk_biquad_alt(
     const SKP_int16      *in,            /* I:    Input signal                   */
     const SKP_int32      *B_Q28,         /* I:    MA coefficients [3]            */
     const SKP_int32      *A_Q28,         /* I:    AR coefficients [2]            */
diff --git a/silk/SKP_Silk_burg_modified.c b/silk/silk_burg_modified.c
similarity index 87%
rename from silk/SKP_Silk_burg_modified.c
rename to silk/silk_burg_modified.c
index 235184ff..c4f330ef 100644
--- a/silk/SKP_Silk_burg_modified.c
+++ b/silk/silk_burg_modified.c
@@ -25,17 +25,7 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*                                                                      *
- * SKP_Silk_burg_modified.c                                           *
- *                                                                      *
- * Calculates the reflection coefficients from the input vector         *
- * Input vector contains nb_subfr sub vectors of length L_sub + D       *
- *                                                                      *
- * Copyright 2009 (c), Skype Limited                                    *
- * Date: 100105                                                         *
- */
-
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
 #define MAX_FRAME_SIZE              384 // subfr_length * nb_subfr = ( 0.005 * 16000 + 16 ) * 4 = 384
 #define MAX_NB_SUBFR                4
@@ -46,7 +36,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define MAX_RSHIFTS                 (32 - QA)
 
 /* Compute reflection coefficients from input signal */
-void SKP_Silk_burg_modified(
+void silk_burg_modified(
     SKP_int32       *res_nrg,           /* O    residual energy                                                 */
     SKP_int         *res_nrg_Q,         /* O    residual energy Q value                                         */
     SKP_int32       A_Q16[],            /* O    prediction coefficients (length order)                          */
@@ -61,25 +51,25 @@ void SKP_Silk_burg_modified(
     SKP_int32       C0, num, nrg, rc_Q31, Atmp_QA, Atmp1, tmp1, tmp2, x1, x2;
     const SKP_int16 *x_ptr;
 
-    SKP_int32       C_first_row[ SKP_Silk_MAX_ORDER_LPC ];
-    SKP_int32       C_last_row[  SKP_Silk_MAX_ORDER_LPC ];
-    SKP_int32       Af_QA[       SKP_Silk_MAX_ORDER_LPC ];
+    SKP_int32       C_first_row[ SILK_MAX_ORDER_LPC ];
+    SKP_int32       C_last_row[  SILK_MAX_ORDER_LPC ];
+    SKP_int32       Af_QA[       SILK_MAX_ORDER_LPC ];
 
-    SKP_int32       CAf[ SKP_Silk_MAX_ORDER_LPC + 1 ];
-    SKP_int32       CAb[ SKP_Silk_MAX_ORDER_LPC + 1 ];
+    SKP_int32       CAf[ SILK_MAX_ORDER_LPC + 1 ];
+    SKP_int32       CAb[ SILK_MAX_ORDER_LPC + 1 ];
 
     SKP_assert( subfr_length * nb_subfr <= MAX_FRAME_SIZE );
     SKP_assert( nb_subfr <= MAX_NB_SUBFR );
 
 
     /* Compute autocorrelations, added over subframes */
-    SKP_Silk_sum_sqr_shift( &C0, &rshifts, x, nb_subfr * subfr_length );
+    silk_sum_sqr_shift( &C0, &rshifts, x, nb_subfr * subfr_length );
     if( rshifts > MAX_RSHIFTS ) {
         C0 = SKP_LSHIFT32( C0, rshifts - MAX_RSHIFTS );
         SKP_assert( C0 > 0 );
         rshifts = MAX_RSHIFTS;
     } else {
-        lz = SKP_Silk_CLZ32( C0 ) - 1;
+        lz = silk_CLZ32( C0 ) - 1;
         rshifts_extra = N_BITS_HEAD_ROOM - lz;
         if( rshifts_extra > 0 ) {
             rshifts_extra = SKP_min( rshifts_extra, MAX_RSHIFTS - rshifts );
@@ -90,13 +80,13 @@ void SKP_Silk_burg_modified(
         }
         rshifts += rshifts_extra;
     }
-    SKP_memset( C_first_row, 0, SKP_Silk_MAX_ORDER_LPC * sizeof( SKP_int32 ) );
+    SKP_memset( C_first_row, 0, SILK_MAX_ORDER_LPC * sizeof( SKP_int32 ) );
     if( rshifts > 0 ) {
         for( s = 0; s < nb_subfr; s++ ) {
             x_ptr = x + s * subfr_length;
             for( n = 1; n < D + 1; n++ ) {
                 C_first_row[ n - 1 ] += (SKP_int32)SKP_RSHIFT64( 
-                    SKP_Silk_inner_prod16_aligned_64( x_ptr, x_ptr + n, subfr_length - n ), rshifts );
+                    silk_inner_prod16_aligned_64( x_ptr, x_ptr + n, subfr_length - n ), rshifts );
             }
         }
     } else {
@@ -104,11 +94,11 @@ void SKP_Silk_burg_modified(
             x_ptr = x + s * subfr_length;
             for( n = 1; n < D + 1; n++ ) {
                 C_first_row[ n - 1 ] += SKP_LSHIFT32( 
-                    SKP_Silk_inner_prod_aligned( x_ptr, x_ptr + n, subfr_length - n ), -rshifts );
+                    silk_inner_prod_aligned( x_ptr, x_ptr + n, subfr_length - n ), -rshifts );
             }
         }
     }
-    SKP_memcpy( C_last_row, C_first_row, SKP_Silk_MAX_ORDER_LPC * sizeof( SKP_int32 ) );
+    SKP_memcpy( C_last_row, C_first_row, SILK_MAX_ORDER_LPC * sizeof( SKP_int32 ) );
     
     /* Initialize */
     CAb[ 0 ] = CAf[ 0 ] = C0 + SKP_SMMUL( WhiteNoiseFrac_Q32, C0 ) + 1;         // Q(-rshifts)
@@ -171,7 +161,7 @@ void SKP_Silk_burg_modified(
         nrg  = SKP_ADD32( CAb[ 0 ], CAf[ 0 ] );                                             // Q( 1-rshifts )
         for( k = 0; k < n; k++ ) {
             Atmp_QA = Af_QA[ k ];
-            lz = SKP_Silk_CLZ32( SKP_abs( Atmp_QA ) ) - 1;
+            lz = silk_CLZ32( SKP_abs( Atmp_QA ) ) - 1;
             lz = SKP_min( 32 - QA, lz );
             Atmp1 = SKP_LSHIFT32( Atmp_QA, lz );                                            // Q( QA + lz )
 
@@ -188,7 +178,7 @@ void SKP_Silk_burg_modified(
 
         /* Calculate the next order reflection (parcor) coefficient */
         if( SKP_abs( num ) < nrg ) {
-            rc_Q31 = SKP_DIV32_varQ( num, nrg, 31 );
+            rc_Q31 = silk_DIV32_varQ( num, nrg, 31 );
         } else {
             /* Negative energy or ratio too high; set remaining coefficients to zero and exit loop */
             SKP_memset( &Af_QA[ n ], 0, ( D - n ) * sizeof( SKP_int32 ) );
diff --git a/silk/SKP_Silk_bwexpander.c b/silk/silk_bwexpander.c
similarity index 96%
rename from silk/SKP_Silk_bwexpander.c
rename to silk/silk_bwexpander.c
index 9cdc64a0..8131ffa7 100644
--- a/silk/SKP_Silk_bwexpander.c
+++ b/silk/silk_bwexpander.c
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
 /* Chirp (bandwidth expand) LP AR filter */
-void SKP_Silk_bwexpander( 
+void silk_bwexpander( 
     SKP_int16            *ar,        /* I/O  AR filter to be expanded (without leading 1)    */
     const SKP_int        d,          /* I    Length of ar                                    */
     SKP_int32            chirp_Q16   /* I    Chirp factor (typically in the range 0 to 1)    */
diff --git a/silk/SKP_Silk_bwexpander_32.c b/silk/silk_bwexpander_32.c
similarity index 95%
rename from silk/SKP_Silk_bwexpander_32.c
rename to silk/silk_bwexpander_32.c
index f5f5e907..8e70ade2 100644
--- a/silk/SKP_Silk_bwexpander_32.c
+++ b/silk/silk_bwexpander_32.c
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
 /* Chirp (bandwidth expand) LP AR filter */
-void SKP_Silk_bwexpander_32( 
+void silk_bwexpander_32( 
     SKP_int32        *ar,      /* I/O    AR filter to be expanded (without leading 1)    */
     const SKP_int    d,        /* I    Length of ar                                      */
     SKP_int32        chirp_Q16 /* I    Chirp factor in Q16                               */
diff --git a/silk/SKP_Silk_check_control_input.c b/silk/silk_check_control_input.c
similarity index 77%
rename from silk/SKP_Silk_check_control_input.c
rename to silk/silk_check_control_input.c
index 0ddf7fae..d787ebaa 100644
--- a/silk/SKP_Silk_check_control_input.c
+++ b/silk/silk_check_control_input.c
@@ -25,13 +25,13 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
-#include "SKP_Silk_control.h"
-#include "SKP_Silk_errors.h"
+#include "silk_main.h"
+#include "silk_control.h"
+#include "silk_errors.h"
 
 /* Check encoder control struct */
 SKP_int check_control_input( 
-    SKP_SILK_SDK_EncControlStruct        *encControl     /* I:   Control structure                               */
+    silk_EncControlStruct        *encControl     /* I:   Control structure                               */
 )
 {
     SKP_assert( encControl != NULL );
@@ -56,39 +56,47 @@ SKP_int check_control_input(
           ( encControl->maxInternalSampleRate < encControl->desiredInternalSampleRate ) ||
           ( encControl->minInternalSampleRate > encControl->maxInternalSampleRate ) ) {
         SKP_assert( 0 );
-        return SKP_SILK_ENC_FS_NOT_SUPPORTED;
+        return SILK_ENC_FS_NOT_SUPPORTED;
     }
     if( encControl->payloadSize_ms != 10 && 
         encControl->payloadSize_ms != 20 && 
         encControl->payloadSize_ms != 40 && 
         encControl->payloadSize_ms != 60 ) {
         SKP_assert( 0 );
-        return SKP_SILK_ENC_PACKET_SIZE_NOT_SUPPORTED;
+        return SILK_ENC_PACKET_SIZE_NOT_SUPPORTED;
     }
     if( encControl->packetLossPercentage < 0 || encControl->packetLossPercentage > 100 ) {
         SKP_assert( 0 );
-        return SKP_SILK_ENC_INVALID_LOSS_RATE;
+        return SILK_ENC_INVALID_LOSS_RATE;
     }
     if( encControl->useDTX < 0 || encControl->useDTX > 1 ) {
         SKP_assert( 0 );
-        return SKP_SILK_ENC_INVALID_DTX_SETTING;
+        return SILK_ENC_INVALID_DTX_SETTING;
     }
 	if( encControl->useCBR < 0 || encControl->useCBR > 1 ) {
         SKP_assert( 0 );
-        return SKP_SILK_ENC_INVALID_CBR_SETTING;
+        return SILK_ENC_INVALID_CBR_SETTING;
     }
 	if( encControl->useInBandFEC < 0 || encControl->useInBandFEC > 1 ) {
         SKP_assert( 0 );
-        return SKP_SILK_ENC_INVALID_INBAND_FEC_SETTING;
+        return SILK_ENC_INVALID_INBAND_FEC_SETTING;
     }
-    if( encControl->nChannels < 1 || encControl->nChannels > ENCODER_NUM_CHANNELS ) {
+    if( encControl->nChannelsAPI < 1 || encControl->nChannelsAPI > ENCODER_NUM_CHANNELS ) {
         SKP_assert( 0 );
-        return SKP_SILK_ENC_INVALID_NUMBER_OF_CHANNELS_ERROR;
+        return SILK_ENC_INVALID_NUMBER_OF_CHANNELS_ERROR;
+    }
+    if( encControl->nChannelsInternal < 1 || encControl->nChannelsInternal > ENCODER_NUM_CHANNELS ) {
+        SKP_assert( 0 );
+        return SILK_ENC_INVALID_NUMBER_OF_CHANNELS_ERROR;
+    }
+    if( encControl->nChannelsInternal > encControl->nChannelsAPI ) {
+        SKP_assert( 0 );
+        return SILK_ENC_INVALID_NUMBER_OF_CHANNELS_ERROR;
     }
     if( encControl->complexity < 0 || encControl->complexity > 10 ) {
         SKP_assert( 0 );
-        return SKP_SILK_ENC_INVALID_COMPLEXITY_SETTING;
+        return SILK_ENC_INVALID_COMPLEXITY_SETTING;
     }
 
-    return SKP_SILK_NO_ERROR;
+    return SILK_NO_ERROR;
 }
diff --git a/silk/SKP_Silk_code_signs.c b/silk/silk_code_signs.c
similarity index 95%
rename from silk/SKP_Silk_code_signs.c
rename to silk/silk_code_signs.c
index ee15f981..86ae69ed 100644
--- a/silk/SKP_Silk_code_signs.c
+++ b/silk/silk_code_signs.c
@@ -25,7 +25,7 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 //#define SKP_enc_map(a)                ((a) > 0 ? 1 : 0)
 //#define SKP_dec_map(a)                ((a) > 0 ? 1 : -1)
@@ -34,7 +34,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define SKP_dec_map(a)                  ( SKP_LSHIFT( (a),  1 ) - 1 )
 
 /* Encodes signs of excitation */
-void SKP_Silk_encode_signs(
+void silk_encode_signs(
     ec_enc                      *psRangeEnc,                        /* I/O  Compressor data structure                   */
     const SKP_int8              pulses[],                           /* I    pulse signal                                */
     SKP_int                     length,                             /* I    length of input                             */
@@ -51,7 +51,7 @@ void SKP_Silk_encode_signs(
     icdf[ 1 ] = 0;
     q_ptr = pulses;
     i = SKP_SMULBB( 6, SKP_ADD_LSHIFT( quantOffsetType, signalType, 1 ) );
-    icdf_ptr = &SKP_Silk_sign_iCDF[ i ];
+    icdf_ptr = &silk_sign_iCDF[ i ];
     length = SKP_RSHIFT( length + SHELL_CODEC_FRAME_LENGTH/2, LOG2_SHELL_CODEC_FRAME_LENGTH );
     for( i = 0; i < length; i++ ) {
         p = sum_pulses[ i ];
@@ -68,7 +68,7 @@ void SKP_Silk_encode_signs(
 }
 
 /* Decodes signs of excitation */
-void SKP_Silk_decode_signs(
+void silk_decode_signs(
     ec_dec                      *psRangeDec,                        /* I/O  Compressor data structure                   */
     SKP_int                     pulses[],                           /* I/O  pulse signal                                */
     SKP_int                     length,                             /* I    length of input                             */
@@ -85,7 +85,7 @@ void SKP_Silk_decode_signs(
     icdf[ 1 ] = 0;
     q_ptr = pulses;
     i = SKP_SMULBB( 6, SKP_ADD_LSHIFT( quantOffsetType, signalType, 1 ) );
-    icdf_ptr = &SKP_Silk_sign_iCDF[ i ];
+    icdf_ptr = &silk_sign_iCDF[ i ];
     length = SKP_RSHIFT( length + SHELL_CODEC_FRAME_LENGTH/2, LOG2_SHELL_CODEC_FRAME_LENGTH );
     for( i = 0; i < length; i++ ) {
         p = sum_pulses[ i ];
diff --git a/silk/silk_common.vcxproj b/silk/silk_common.vcxproj
index 748da77d..0a18f9df 100644
--- a/silk/silk_common.vcxproj
+++ b/silk/silk_common.vcxproj
@@ -86,125 +86,127 @@
     <None Include="ReadMe.txt" />
   </ItemGroup>
   <ItemGroup>
-    <ClCompile Include="SKP_Silk_A2NLSF.c" />
-    <ClCompile Include="SKP_Silk_ana_filt_bank_1.c" />
-    <ClCompile Include="SKP_Silk_apply_sine_window.c" />
-    <ClCompile Include="SKP_Silk_array_maxabs.c" />
-    <ClCompile Include="SKP_Silk_autocorr.c" />
-    <ClCompile Include="SKP_Silk_biquad_alt.c" />
-    <ClCompile Include="SKP_Silk_burg_modified.c" />
-    <ClCompile Include="SKP_Silk_bwexpander.c" />
-    <ClCompile Include="SKP_Silk_bwexpander_32.c" />
-    <ClCompile Include="SKP_Silk_check_control_input.c" />
-    <ClCompile Include="SKP_Silk_CNG.c" />
-    <ClCompile Include="SKP_Silk_code_signs.c" />
-    <ClCompile Include="SKP_Silk_control_audio_bandwidth.c" />
-    <ClCompile Include="SKP_Silk_control_codec.c" />
-    <ClCompile Include="SKP_Silk_control_SNR.c" />
-    <ClCompile Include="SKP_Silk_create_init_destroy.c" />
-    <ClCompile Include="SKP_Silk_debug.c" />
-    <ClCompile Include="SKP_Silk_decoder_set_fs.c" />
-    <ClCompile Include="SKP_Silk_decode_core.c" />
-    <ClCompile Include="SKP_Silk_decode_frame.c" />
-    <ClCompile Include="SKP_Silk_decode_indices.c" />
-    <ClCompile Include="SKP_Silk_decode_parameters.c" />
-    <ClCompile Include="SKP_Silk_decode_pitch.c" />
-    <ClCompile Include="SKP_Silk_decode_pulses.c" />
-    <ClCompile Include="SKP_Silk_dec_API.c" />
-    <ClCompile Include="SKP_Silk_encode_indices.c" />
-    <ClCompile Include="SKP_Silk_encode_pulses.c" />
-    <ClCompile Include="SKP_Silk_enc_API.c" />
-    <ClCompile Include="SKP_Silk_gain_quant.c" />
-    <ClCompile Include="SKP_Silk_HP_variable_cutoff.c" />
-    <ClCompile Include="SKP_Silk_init_encoder.c" />
-    <ClCompile Include="SKP_Silk_inner_prod_aligned.c" />
-    <ClCompile Include="SKP_Silk_interpolate.c" />
-    <ClCompile Include="SKP_Silk_k2a.c" />
-    <ClCompile Include="SKP_Silk_k2a_Q16.c" />
-    <ClCompile Include="SKP_Silk_lin2log.c" />
-    <ClCompile Include="SKP_Silk_log2lin.c" />
-    <ClCompile Include="SKP_Silk_LPC_analysis_filter.c" />
-    <ClCompile Include="SKP_Silk_LPC_inv_pred_gain.c" />
-    <ClCompile Include="SKP_Silk_LPC_stabilize.c" />
-    <ClCompile Include="SKP_Silk_LPC_synthesis_filter.c" />
-    <ClCompile Include="SKP_Silk_LPC_synthesis_order16.c" />
-    <ClCompile Include="SKP_Silk_LP_variable_cutoff.c" />
-    <ClCompile Include="SKP_Silk_LSF_cos_table.c" />
-    <ClCompile Include="SKP_Silk_NLSF2A.c" />
-    <ClCompile Include="SKP_Silk_NLSF2A_stable.c" />
-    <ClCompile Include="SKP_Silk_NLSF_decode.c" />
-    <ClCompile Include="SKP_Silk_NLSF_del_dec_quant.c" />
-    <ClCompile Include="SKP_Silk_NLSF_encode.c" />
-    <ClCompile Include="SKP_Silk_NLSF_stabilize.c" />
-    <ClCompile Include="SKP_Silk_NLSF_unpack.c" />
-    <ClCompile Include="SKP_Silk_NLSF_VQ.c" />
-    <ClCompile Include="SKP_Silk_NLSF_VQ_weights_laroia.c" />
-    <ClCompile Include="SKP_Silk_NSQ.c" />
-    <ClCompile Include="SKP_Silk_NSQ_del_dec.c" />
-    <ClCompile Include="SKP_Silk_pitch_analysis_core.c" />
-    <ClCompile Include="SKP_Silk_pitch_est_tables.c" />
-    <ClCompile Include="SKP_Silk_PLC.c" />
-    <ClCompile Include="SKP_Silk_process_NLSFs.c" />
-    <ClCompile Include="SKP_Silk_quant_LTP_gains.c" />
-    <ClCompile Include="SKP_Silk_resampler.c" />
-    <ClCompile Include="SKP_Silk_resampler_down2.c" />
-    <ClCompile Include="SKP_Silk_resampler_down2_3.c" />
-    <ClCompile Include="SKP_Silk_resampler_down3.c" />
-    <ClCompile Include="SKP_Silk_resampler_private_AR2.c" />
-    <ClCompile Include="SKP_Silk_resampler_private_ARMA4.c" />
-    <ClCompile Include="SKP_Silk_resampler_private_copy.c" />
-    <ClCompile Include="SKP_Silk_resampler_private_down4.c" />
-    <ClCompile Include="SKP_Silk_resampler_private_down_FIR.c" />
-    <ClCompile Include="SKP_Silk_resampler_private_IIR_FIR.c" />
-    <ClCompile Include="SKP_Silk_resampler_private_up2_HQ.c" />
-    <ClCompile Include="SKP_Silk_resampler_private_up4.c" />
-    <ClCompile Include="SKP_Silk_resampler_rom.c" />
-    <ClCompile Include="SKP_Silk_resampler_up2.c" />
-    <ClCompile Include="SKP_Silk_scale_copy_vector16.c" />
-    <ClCompile Include="SKP_Silk_scale_vector.c" />
-    <ClCompile Include="SKP_Silk_schur.c" />
-    <ClCompile Include="SKP_Silk_schur64.c" />
-    <ClCompile Include="SKP_Silk_shell_coder.c" />
-    <ClCompile Include="SKP_Silk_sigm_Q15.c" />
-    <ClCompile Include="SKP_Silk_sort.c" />
-    <ClCompile Include="SKP_Silk_stereo_decode_pred.c" />
-    <ClCompile Include="SKP_Silk_stereo_encode_pred.c" />
-    <ClCompile Include="SKP_Silk_stereo_find_predictor.c" />
-    <ClCompile Include="SKP_Silk_stereo_LR_to_MS.c" />
-    <ClCompile Include="SKP_Silk_stereo_MS_to_LR.c" />
-    <ClCompile Include="SKP_Silk_sum_sqr_shift.c" />
-    <ClCompile Include="SKP_Silk_tables_gain.c" />
-    <ClCompile Include="SKP_Silk_tables_LTP.c" />
-    <ClCompile Include="SKP_Silk_tables_NLSF_CB_NB_MB.c" />
-    <ClCompile Include="SKP_Silk_tables_NLSF_CB_WB.c" />
-    <ClCompile Include="SKP_Silk_tables_other.c" />
-    <ClCompile Include="SKP_Silk_tables_pitch_lag.c" />
-    <ClCompile Include="SKP_Silk_tables_pulses_per_block.c" />
-    <ClCompile Include="SKP_Silk_VAD.c" />
-    <ClCompile Include="SKP_Silk_VQ_WMat_EC.c" />
+    <ClCompile Include="silk_A2NLSF.c" />
+    <ClCompile Include="silk_ana_filt_bank_1.c" />
+    <ClCompile Include="silk_apply_sine_window.c" />
+    <ClCompile Include="silk_array_maxabs.c" />
+    <ClCompile Include="silk_autocorr.c" />
+    <ClCompile Include="silk_biquad_alt.c" />
+    <ClCompile Include="silk_burg_modified.c" />
+    <ClCompile Include="silk_bwexpander.c" />
+    <ClCompile Include="silk_bwexpander_32.c" />
+    <ClCompile Include="silk_check_control_input.c" />
+    <ClCompile Include="silk_CNG.c" />
+    <ClCompile Include="silk_code_signs.c" />
+    <ClCompile Include="silk_control_audio_bandwidth.c" />
+    <ClCompile Include="silk_control_codec.c" />
+    <ClCompile Include="silk_control_SNR.c" />
+    <ClCompile Include="silk_create_init_destroy.c" />
+    <ClCompile Include="silk_debug.c" />
+    <ClCompile Include="silk_decoder_set_fs.c" />
+    <ClCompile Include="silk_decode_core.c" />
+    <ClCompile Include="silk_decode_frame.c" />
+    <ClCompile Include="silk_decode_indices.c" />
+    <ClCompile Include="silk_decode_parameters.c" />
+    <ClCompile Include="silk_decode_pitch.c" />
+    <ClCompile Include="silk_decode_pulses.c" />
+    <ClCompile Include="silk_dec_API.c" />
+    <ClCompile Include="silk_encode_indices.c" />
+    <ClCompile Include="silk_encode_pulses.c" />
+    <ClCompile Include="silk_enc_API.c" />
+    <ClCompile Include="silk_gain_quant.c" />
+    <ClCompile Include="silk_HP_variable_cutoff.c" />
+    <ClCompile Include="silk_init_encoder.c" />
+    <ClCompile Include="silk_inner_prod_aligned.c" />
+    <ClCompile Include="silk_interpolate.c" />
+    <ClCompile Include="silk_k2a.c" />
+    <ClCompile Include="silk_k2a_Q16.c" />
+    <ClCompile Include="silk_lin2log.c" />
+    <ClCompile Include="silk_log2lin.c" />
+    <ClCompile Include="silk_LPC_analysis_filter.c" />
+    <ClCompile Include="silk_LPC_inv_pred_gain.c" />
+    <ClCompile Include="silk_LPC_stabilize.c" />
+    <ClCompile Include="silk_LPC_synthesis_filter.c" />
+    <ClCompile Include="silk_LPC_synthesis_order16.c" />
+    <ClCompile Include="silk_LP_variable_cutoff.c" />
+    <ClCompile Include="silk_table_LSF_cos.c" />
+    <ClCompile Include="silk_NLSF2A.c" />
+    <ClCompile Include="silk_NLSF2A_stable.c" />
+    <ClCompile Include="silk_NLSF_decode.c" />
+    <ClCompile Include="silk_NLSF_del_dec_quant.c" />
+    <ClCompile Include="silk_NLSF_encode.c" />
+    <ClCompile Include="silk_NLSF_stabilize.c" />
+    <ClCompile Include="silk_NLSF_unpack.c" />
+    <ClCompile Include="silk_NLSF_VQ.c" />
+    <ClCompile Include="silk_NLSF_VQ_weights_laroia.c" />
+    <ClCompile Include="silk_NSQ.c" />
+    <ClCompile Include="silk_NSQ_del_dec.c" />
+    <ClCompile Include="silk_pitch_analysis_core.c" />
+    <ClCompile Include="silk_pitch_est_tables.c" />
+    <ClCompile Include="silk_PLC.c" />
+    <ClCompile Include="silk_process_NLSFs.c" />
+    <ClCompile Include="silk_quant_LTP_gains.c" />
+    <ClCompile Include="silk_resampler.c" />
+    <ClCompile Include="silk_resampler_down2.c" />
+    <ClCompile Include="silk_resampler_down2_3.c" />
+    <ClCompile Include="silk_resampler_down3.c" />
+    <ClCompile Include="silk_resampler_private_AR2.c" />
+    <ClCompile Include="silk_resampler_private_ARMA4.c" />
+    <ClCompile Include="silk_resampler_private_copy.c" />
+    <ClCompile Include="silk_resampler_private_down4.c" />
+    <ClCompile Include="silk_resampler_private_down_FIR.c" />
+    <ClCompile Include="silk_resampler_private_IIR_FIR.c" />
+    <ClCompile Include="silk_resampler_private_up2_HQ.c" />
+    <ClCompile Include="silk_resampler_private_up4.c" />
+    <ClCompile Include="silk_resampler_rom.c" />
+    <ClCompile Include="silk_resampler_up2.c" />
+    <ClCompile Include="silk_scale_copy_vector16.c" />
+    <ClCompile Include="silk_scale_vector.c" />
+    <ClCompile Include="silk_schur.c" />
+    <ClCompile Include="silk_schur64.c" />
+    <ClCompile Include="silk_shell_coder.c" />
+    <ClCompile Include="silk_sigm_Q15.c" />
+    <ClCompile Include="silk_sort.c" />
+    <ClCompile Include="silk_stereo_decode_pred.c" />
+    <ClCompile Include="silk_stereo_encode_pred.c" />
+    <ClCompile Include="silk_stereo_find_predictor.c" />
+    <ClCompile Include="silk_stereo_LR_to_MS.c" />
+    <ClCompile Include="silk_stereo_MS_to_LR.c" />
+    <ClCompile Include="silk_stereo_quant_pred.c" />
+    <ClCompile Include="silk_sum_sqr_shift.c" />
+    <ClCompile Include="silk_tables_gain.c" />
+    <ClCompile Include="silk_tables_LTP.c" />
+    <ClCompile Include="silk_tables_NLSF_CB_NB_MB.c" />
+    <ClCompile Include="silk_tables_NLSF_CB_WB.c" />
+    <ClCompile Include="silk_tables_other.c" />
+    <ClCompile Include="silk_tables_pitch_lag.c" />
+    <ClCompile Include="silk_tables_pulses_per_block.c" />
+    <ClCompile Include="silk_VAD.c" />
+    <ClCompile Include="silk_VQ_WMat_EC.c" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\win32\config.h" />
-    <ClInclude Include="float\SKP_Silk_main_FLP.h" />
-    <ClInclude Include="SKP_Silk_control.h" />
-    <ClInclude Include="SKP_Silk_define.h" />
-    <ClInclude Include="SKP_Silk_errors.h" />
-    <ClInclude Include="SKP_Silk_Inlines.h" />
-    <ClInclude Include="SKP_Silk_MacroCount.h" />
-    <ClInclude Include="SKP_Silk_MacroDebug.h" />
-    <ClInclude Include="SKP_Silk_macros.h" />
-    <ClInclude Include="SKP_Silk_main.h" />
-    <ClInclude Include="SKP_Silk_pitch_est_defines.h" />
-    <ClInclude Include="SKP_Silk_PLC.h" />
-    <ClInclude Include="SKP_Silk_resampler_private.h" />
-    <ClInclude Include="SKP_Silk_resampler_rom.h" />
-    <ClInclude Include="SKP_Silk_resampler_structs.h" />
-    <ClInclude Include="SKP_Silk_SDK_API.h" />
-    <ClInclude Include="SKP_Silk_SigProc_FIX.h" />
-    <ClInclude Include="SKP_Silk_structs.h" />
-    <ClInclude Include="SKP_Silk_tables.h" />
-    <ClInclude Include="SKP_Silk_tuning_parameters.h" />
-    <ClInclude Include="SKP_Silk_typedef.h" />
+    <ClInclude Include="float\silk_main_FLP.h" />
+    <ClInclude Include="silk_control.h" />
+    <ClInclude Include="silk_debug.h" />
+    <ClInclude Include="silk_define.h" />
+    <ClInclude Include="silk_errors.h" />
+    <ClInclude Include="silk_Inlines.h" />
+    <ClInclude Include="silk_MacroCount.h" />
+    <ClInclude Include="silk_MacroDebug.h" />
+    <ClInclude Include="silk_macros.h" />
+    <ClInclude Include="silk_main.h" />
+    <ClInclude Include="silk_pitch_est_defines.h" />
+    <ClInclude Include="silk_PLC.h" />
+    <ClInclude Include="silk_resampler_private.h" />
+    <ClInclude Include="silk_resampler_rom.h" />
+    <ClInclude Include="silk_resampler_structs.h" />
+    <ClInclude Include="silk_API.h" />
+    <ClInclude Include="silk_SigProc_FIX.h" />
+    <ClInclude Include="silk_structs.h" />
+    <ClInclude Include="silk_tables.h" />
+    <ClInclude Include="silk_tuning_parameters.h" />
+    <ClInclude Include="silk_typedef.h" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
diff --git a/silk/silk_common.vcxproj.filters b/silk/silk_common.vcxproj.filters
index 561e1c0d..455efe85 100644
--- a/silk/silk_common.vcxproj.filters
+++ b/silk/silk_common.vcxproj.filters
@@ -18,357 +18,363 @@
     <None Include="ReadMe.txt" />
   </ItemGroup>
   <ItemGroup>
-    <ClCompile Include="SKP_Silk_A2NLSF.c">
+    <ClCompile Include="silk_A2NLSF.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_ana_filt_bank_1.c">
+    <ClCompile Include="silk_ana_filt_bank_1.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_apply_sine_window.c">
+    <ClCompile Include="silk_apply_sine_window.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_array_maxabs.c">
+    <ClCompile Include="silk_array_maxabs.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_autocorr.c">
+    <ClCompile Include="silk_autocorr.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_biquad_alt.c">
+    <ClCompile Include="silk_biquad_alt.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_burg_modified.c">
+    <ClCompile Include="silk_burg_modified.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_bwexpander.c">
+    <ClCompile Include="silk_bwexpander.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_bwexpander_32.c">
+    <ClCompile Include="silk_bwexpander_32.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_check_control_input.c">
+    <ClCompile Include="silk_check_control_input.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_CNG.c">
+    <ClCompile Include="silk_CNG.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_code_signs.c">
+    <ClCompile Include="silk_code_signs.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_control_audio_bandwidth.c">
+    <ClCompile Include="silk_control_audio_bandwidth.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_control_codec.c">
+    <ClCompile Include="silk_control_codec.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_control_SNR.c">
+    <ClCompile Include="silk_control_SNR.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_create_init_destroy.c">
+    <ClCompile Include="silk_create_init_destroy.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_debug.c">
+    <ClCompile Include="silk_debug.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_dec_API.c">
+    <ClCompile Include="silk_dec_API.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_decode_core.c">
+    <ClCompile Include="silk_decode_core.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_decode_frame.c">
+    <ClCompile Include="silk_decode_frame.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_decode_indices.c">
+    <ClCompile Include="silk_decode_indices.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_decode_parameters.c">
+    <ClCompile Include="silk_decode_parameters.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_decode_pitch.c">
+    <ClCompile Include="silk_decode_pitch.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_decode_pulses.c">
+    <ClCompile Include="silk_decode_pulses.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_decoder_set_fs.c">
+    <ClCompile Include="silk_decoder_set_fs.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_enc_API.c">
+    <ClCompile Include="silk_enc_API.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_encode_indices.c">
+    <ClCompile Include="silk_encode_indices.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_encode_pulses.c">
+    <ClCompile Include="silk_encode_pulses.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_gain_quant.c">
+    <ClCompile Include="silk_gain_quant.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_HP_variable_cutoff.c">
+    <ClCompile Include="silk_HP_variable_cutoff.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_init_encoder.c">
+    <ClCompile Include="silk_init_encoder.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_inner_prod_aligned.c">
+    <ClCompile Include="silk_inner_prod_aligned.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_interpolate.c">
+    <ClCompile Include="silk_interpolate.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_k2a.c">
+    <ClCompile Include="silk_k2a.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_k2a_Q16.c">
+    <ClCompile Include="silk_k2a_Q16.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_lin2log.c">
+    <ClCompile Include="silk_lin2log.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_log2lin.c">
+    <ClCompile Include="silk_log2lin.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_LP_variable_cutoff.c">
+    <ClCompile Include="silk_LP_variable_cutoff.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_LPC_analysis_filter.c">
+    <ClCompile Include="silk_LPC_analysis_filter.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_LPC_inv_pred_gain.c">
+    <ClCompile Include="silk_LPC_inv_pred_gain.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_LPC_stabilize.c">
+    <ClCompile Include="silk_LPC_stabilize.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_LPC_synthesis_filter.c">
+    <ClCompile Include="silk_LPC_synthesis_filter.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_LPC_synthesis_order16.c">
+    <ClCompile Include="silk_LPC_synthesis_order16.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_LSF_cos_table.c">
+    <ClCompile Include="silk_table_LSF_cos.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_NLSF_decode.c">
+    <ClCompile Include="silk_NLSF2A.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_NLSF_del_dec_quant.c">
+    <ClCompile Include="silk_NLSF2A_stable.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_NLSF_encode.c">
+    <ClCompile Include="silk_NLSF_decode.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_NLSF_stabilize.c">
+    <ClCompile Include="silk_NLSF_del_dec_quant.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_NLSF_unpack.c">
+    <ClCompile Include="silk_NLSF_encode.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_NLSF_VQ.c">
+    <ClCompile Include="silk_NLSF_stabilize.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_NLSF_VQ_weights_laroia.c">
+    <ClCompile Include="silk_NLSF_unpack.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_NLSF2A.c">
+    <ClCompile Include="silk_NLSF_VQ.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_NLSF2A_stable.c">
+    <ClCompile Include="silk_NLSF_VQ_weights_laroia.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_NSQ.c">
+    <ClCompile Include="silk_NSQ.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_NSQ_del_dec.c">
+    <ClCompile Include="silk_NSQ_del_dec.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_pitch_analysis_core.c">
+    <ClCompile Include="silk_pitch_analysis_core.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_pitch_est_tables.c">
+    <ClCompile Include="silk_pitch_est_tables.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_PLC.c">
+    <ClCompile Include="silk_PLC.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_process_NLSFs.c">
+    <ClCompile Include="silk_process_NLSFs.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_quant_LTP_gains.c">
+    <ClCompile Include="silk_quant_LTP_gains.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_resampler.c">
+    <ClCompile Include="silk_resampler.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_resampler_down2.c">
+    <ClCompile Include="silk_resampler_down2.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_resampler_down2_3.c">
+    <ClCompile Include="silk_resampler_down2_3.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_resampler_down3.c">
+    <ClCompile Include="silk_resampler_down3.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_resampler_private_AR2.c">
+    <ClCompile Include="silk_resampler_private_AR2.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_resampler_private_ARMA4.c">
+    <ClCompile Include="silk_resampler_private_ARMA4.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_resampler_private_copy.c">
+    <ClCompile Include="silk_resampler_private_copy.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_resampler_private_down_FIR.c">
+    <ClCompile Include="silk_resampler_private_down4.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_resampler_private_down4.c">
+    <ClCompile Include="silk_resampler_private_down_FIR.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_resampler_private_IIR_FIR.c">
+    <ClCompile Include="silk_resampler_private_IIR_FIR.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_resampler_private_up2_HQ.c">
+    <ClCompile Include="silk_resampler_private_up2_HQ.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_resampler_private_up4.c">
+    <ClCompile Include="silk_resampler_private_up4.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_resampler_rom.c">
+    <ClCompile Include="silk_resampler_rom.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_resampler_up2.c">
+    <ClCompile Include="silk_resampler_up2.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_scale_copy_vector16.c">
+    <ClCompile Include="silk_scale_copy_vector16.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_scale_vector.c">
+    <ClCompile Include="silk_scale_vector.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_schur.c">
+    <ClCompile Include="silk_schur.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_schur64.c">
+    <ClCompile Include="silk_schur64.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_shell_coder.c">
+    <ClCompile Include="silk_shell_coder.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_sigm_Q15.c">
+    <ClCompile Include="silk_sigm_Q15.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_sort.c">
+    <ClCompile Include="silk_sort.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_stereo_decode_pred.c">
+    <ClCompile Include="silk_stereo_decode_pred.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_stereo_encode_pred.c">
+    <ClCompile Include="silk_stereo_encode_pred.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_stereo_find_predictor.c">
+    <ClCompile Include="silk_stereo_find_predictor.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_stereo_LR_to_MS.c">
+    <ClCompile Include="silk_stereo_LR_to_MS.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_stereo_MS_to_LR.c">
+    <ClCompile Include="silk_stereo_MS_to_LR.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_sum_sqr_shift.c">
+    <ClCompile Include="silk_stereo_quant_pred.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_tables_gain.c">
+    <ClCompile Include="silk_sum_sqr_shift.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_tables_LTP.c">
+    <ClCompile Include="silk_tables_gain.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_tables_NLSF_CB_NB_MB.c">
+    <ClCompile Include="silk_tables_LTP.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_tables_NLSF_CB_WB.c">
+    <ClCompile Include="silk_tables_NLSF_CB_NB_MB.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_tables_other.c">
+    <ClCompile Include="silk_tables_NLSF_CB_WB.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_tables_pitch_lag.c">
+    <ClCompile Include="silk_tables_other.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_tables_pulses_per_block.c">
+    <ClCompile Include="silk_tables_pitch_lag.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_VAD.c">
+    <ClCompile Include="silk_tables_pulses_per_block.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="SKP_Silk_VQ_WMat_EC.c">
+    <ClCompile Include="silk_VAD.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="silk_VQ_WMat_EC.c">
       <Filter>Source Files</Filter>
     </ClCompile>
   </ItemGroup>
   <ItemGroup>
-    <ClInclude Include="SKP_Silk_typedef.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-    <ClInclude Include="SKP_Silk_control.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-    <ClInclude Include="SKP_Silk_define.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-    <ClInclude Include="SKP_Silk_errors.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-    <ClInclude Include="SKP_Silk_Inlines.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-    <ClInclude Include="SKP_Silk_MacroCount.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-    <ClInclude Include="SKP_Silk_MacroDebug.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-    <ClInclude Include="SKP_Silk_macros.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-    <ClInclude Include="SKP_Silk_main.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-    <ClInclude Include="SKP_Silk_pitch_est_defines.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-    <ClInclude Include="SKP_Silk_PLC.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-    <ClInclude Include="SKP_Silk_resampler_private.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-    <ClInclude Include="SKP_Silk_resampler_rom.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-    <ClInclude Include="SKP_Silk_resampler_structs.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-    <ClInclude Include="SKP_Silk_SDK_API.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-    <ClInclude Include="SKP_Silk_SigProc_FIX.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-    <ClInclude Include="SKP_Silk_structs.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-    <ClInclude Include="SKP_Silk_tables.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
-    <ClInclude Include="SKP_Silk_tuning_parameters.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
     <ClInclude Include="..\win32\config.h">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="float\SKP_Silk_main_FLP.h">
+    <ClInclude Include="silk_control.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="silk_define.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="silk_errors.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="silk_Inlines.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="silk_MacroCount.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="silk_MacroDebug.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="silk_macros.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="silk_main.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="silk_pitch_est_defines.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="silk_PLC.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="float\silk_main_FLP.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="silk_resampler_private.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="silk_resampler_rom.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="silk_resampler_structs.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="silk_structs.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="silk_tables.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="silk_tuning_parameters.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="silk_typedef.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="silk_API.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="silk_debug.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="silk_SigProc_FIX.h">
       <Filter>Header Files</Filter>
     </ClInclude>
   </ItemGroup>
diff --git a/silk/SKP_Silk_control.h b/silk/silk_control.h
similarity index 89%
rename from silk/SKP_Silk_control.h
rename to silk/silk_control.h
index d970fac8..a74c5420 100644
--- a/silk/SKP_Silk_control.h
+++ b/silk/silk_control.h
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#ifndef SKP_SILK_CONTROL_H
-#define SKP_SILK_CONTROL_H
+#ifndef SILK_CONTROL_H
+#define SILK_CONTROL_H
 
-#include "SKP_Silk_typedef.h"
+#include "silk_typedef.h"
 
 #ifdef __cplusplus
 extern "C"
@@ -45,7 +45,10 @@ extern "C"
 /***********************************************/
 typedef struct {
     /* I:   Number of channels; 1/2                                                         */
-    SKP_int32 nChannels;
+    SKP_int32 nChannelsAPI;
+
+    /* I:   Number of channels; 1/2                                                         */
+    SKP_int32 nChannelsInternal;
 
     /* I:   Input signal sampling rate in Hertz; 8000/12000/16000/24000/32000/44100/48000   */
     SKP_int32 API_sampleRate;
@@ -88,30 +91,30 @@ typedef struct {
 
     /* O:   Flag that SILK runs in WB mode without variable LP filter (use for switching between WB/SWB/FB) */
     SKP_int inWBmodeWithoutVariableLP;
-} SKP_SILK_SDK_EncControlStruct;
+
+    /* O:   Stereo width */
+    SKP_int stereoWidth_Q14;
+} silk_EncControlStruct;
 
 /**************************************************************************/
 /* Structure for controlling decoder operation and reading decoder status */
 /**************************************************************************/
 typedef struct {
     /* I:   Number of channels; 1/2                                                         */
-    SKP_int32 nChannels;
+    SKP_int32 nChannelsAPI;
+
+    /* I:   Number of channels; 1/2                                                         */
+    SKP_int32 nChannelsInternal;
 
     /* I:   Output signal sampling rate in Hertz; 8000/12000/16000/24000/32000/44100/48000  */
     SKP_int32 API_sampleRate;
 
-    /* I:   Number of samples per packet in milliseconds; 10/20/40/60                       */
-    SKP_int payloadSize_ms;
-
     /* I:   Internal sampling rate used, in Hertz; 8000/12000/16000                         */
     SKP_int32 internalSampleRate;
 
-    /* O:   Number of samples per frame                                                     */
-    SKP_int frameSize;
-
-    /* O:   Frames per payload 1, 2, 3                                                      */
-    SKP_int framesPerPayload;
-} SKP_SILK_SDK_DecControlStruct;
+    /* I:   Number of samples per packet in milliseconds; 10/20/40/60                       */
+    SKP_int payloadSize_ms;
+} silk_DecControlStruct;
 
 #ifdef __cplusplus
 }
diff --git a/silk/SKP_Silk_control_SNR.c b/silk/silk_control_SNR.c
similarity index 78%
rename from silk/SKP_Silk_control_SNR.c
rename to silk/silk_control_SNR.c
index 81618c25..28f0ef99 100644
--- a/silk/SKP_Silk_control_SNR.c
+++ b/silk/silk_control_SNR.c
@@ -25,16 +25,16 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
-#include "SKP_Silk_tuning_parameters.h"
+#include "silk_main.h"
+#include "silk_tuning_parameters.h"
 
 /* Control SNR of redidual quantizer */
-SKP_int SKP_Silk_control_SNR(
-    SKP_Silk_encoder_state      *psEncC,            /* I/O  Pointer to Silk encoder state               */
+SKP_int silk_control_SNR(
+    silk_encoder_state          *psEncC,            /* I/O  Pointer to Silk encoder state               */
     SKP_int32                   TargetRate_bps      /* I    Target max bitrate (bps)                    */
 )
 {
-    SKP_int k, ret = SKP_SILK_NO_ERROR;
+    SKP_int k, ret = SILK_NO_ERROR;
     SKP_int32 frac_Q6;
     const SKP_int32 *rateTable;
 
@@ -45,13 +45,11 @@ SKP_int SKP_Silk_control_SNR(
 
         /* If new TargetRate_bps, translate to SNR_dB value */
         if( psEncC->fs_kHz == 8 ) {
-            rateTable = TargetRate_table_NB;
+            rateTable = silk_TargetRate_table_NB;
         } else if( psEncC->fs_kHz == 12 ) {
-            rateTable = TargetRate_table_MB;
-        } else if( psEncC->fs_kHz == 16 ) {
-            rateTable = TargetRate_table_WB;
+            rateTable = silk_TargetRate_table_MB;
         } else {
-            SKP_assert( 0 );
+            rateTable = silk_TargetRate_table_WB;
         }
 
         /* Reduce bitrate for 10 ms modes in these calculations */
@@ -64,10 +62,15 @@ SKP_int SKP_Silk_control_SNR(
             if( TargetRate_bps <= rateTable[ k ] ) {
                 frac_Q6 = SKP_DIV32( SKP_LSHIFT( TargetRate_bps - rateTable[ k - 1 ], 6 ), 
                                                  rateTable[ k ] - rateTable[ k - 1 ] );
-                psEncC->SNR_dB_Q7 = SKP_LSHIFT( SNR_table_Q1[ k - 1 ], 6 ) + SKP_MUL( frac_Q6, SNR_table_Q1[ k ] - SNR_table_Q1[ k - 1 ] );
+                psEncC->SNR_dB_Q7 = SKP_LSHIFT( silk_SNR_table_Q1[ k - 1 ], 6 ) + SKP_MUL( frac_Q6, silk_SNR_table_Q1[ k ] - silk_SNR_table_Q1[ k - 1 ] );
                 break;
             }
         }
+
+        /* Reduce coding quality whenever LBRR is enabled, to free up some bits */
+        if( psEncC->LBRR_enabled ) {
+            psEncC->SNR_dB_Q7 = SKP_SMLABB( psEncC->SNR_dB_Q7, 12 - psEncC->LBRR_GainIncreases, SILK_FIX_CONST( -0.25, 7 ) );
+        }
     }
 
     return ret;
diff --git a/silk/SKP_Silk_control_audio_bandwidth.c b/silk/silk_control_audio_bandwidth.c
similarity index 93%
rename from silk/SKP_Silk_control_audio_bandwidth.c
rename to silk/silk_control_audio_bandwidth.c
index b2d0e042..8f887dca 100644
--- a/silk/SKP_Silk_control_audio_bandwidth.c
+++ b/silk/silk_control_audio_bandwidth.c
@@ -25,12 +25,12 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
-#include "SKP_Silk_tuning_parameters.h"
+#include "silk_main.h"
+#include "silk_tuning_parameters.h"
 
 /* Control internal sampling rate */
-SKP_int SKP_Silk_control_audio_bandwidth(
-    SKP_Silk_encoder_state      *psEncC             /* I/O  Pointer to Silk encoder state               */
+SKP_int silk_control_audio_bandwidth(
+    silk_encoder_state      *psEncC             /* I/O  Pointer to Silk encoder state               */
 )
 {
     SKP_int   fs_kHz;
diff --git a/silk/SKP_Silk_control_codec.c b/silk/silk_control_codec.c
similarity index 68%
rename from silk/SKP_Silk_control_codec.c
rename to silk/silk_control_codec.c
index 6d813d49..bc8e46e9 100644
--- a/silk/SKP_Silk_control_codec.c
+++ b/silk/silk_control_codec.c
@@ -25,45 +25,41 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "SKP_Silk_tuning_parameters.h"
+#include "silk_tuning_parameters.h"
 #ifdef FIXED_POINT
-#include "SKP_Silk_main_FIX.h"
-#define SKP_Silk_encoder_state_Fxx      SKP_Silk_encoder_state_FIX
+#include "silk_main_FIX.h"
+#define silk_encoder_state_Fxx      silk_encoder_state_FIX
 #else
-#include "SKP_Silk_main_FLP.h"
-#define SKP_Silk_encoder_state_Fxx      SKP_Silk_encoder_state_FLP
+#include "silk_main_FLP.h"
+#define silk_encoder_state_Fxx      silk_encoder_state_FLP
 #endif
 
-SKP_int SKP_Silk_setup_resamplers(
-    SKP_Silk_encoder_state_Fxx      *psEnc,             /* I/O                      */
+SKP_int silk_setup_resamplers(
+    silk_encoder_state_Fxx          *psEnc,             /* I/O                      */
     SKP_int                         fs_kHz              /* I                        */
 );
 
-SKP_int SKP_Silk_setup_fs(
-    SKP_Silk_encoder_state_Fxx      *psEnc,             /* I/O                      */
+SKP_int silk_setup_fs(
+    silk_encoder_state_Fxx          *psEnc,             /* I/O                      */
     SKP_int                         fs_kHz,             /* I                        */
     SKP_int                         PacketSize_ms       /* I                        */
 );
 
-SKP_int SKP_Silk_setup_complexity(
-    SKP_Silk_encoder_state          *psEncC,            /* I/O                      */
+SKP_int silk_setup_complexity(
+    silk_encoder_state              *psEncC,            /* I/O                      */
     SKP_int                         Complexity          /* I                        */
 );
 
-SKP_INLINE SKP_int SKP_Silk_setup_LBRR(
-    SKP_Silk_encoder_state          *psEncC,            /* I/O                      */
+SKP_INLINE SKP_int silk_setup_LBRR(
+    silk_encoder_state          	*psEncC,            /* I/O                      */
     const SKP_int32                 TargetRate_bps      /* I                        */
 );
 
 
 /* Control encoder */
-SKP_int SKP_Silk_control_encoder( 
-    SKP_Silk_encoder_state_Fxx      *psEnc,             /* I/O  Pointer to Silk encoder state           */
-    SKP_SILK_SDK_EncControlStruct   *encControl,        /* I:   Control structure                       */
+SKP_int silk_control_encoder( 
+    silk_encoder_state_Fxx          *psEnc,             /* I/O  Pointer to Silk encoder state           */
+    silk_EncControlStruct           *encControl,        /* I:   Control structure                       */
     const SKP_int32                 TargetRate_bps,     /* I    Target max bitrate (bps)                */
     const SKP_int                   allow_bw_switch,    /* I    Flag to allow switching audio bandwidth */
     const SKP_int                   channelNb           /* I    Channel number                          */
@@ -78,14 +74,15 @@ SKP_int SKP_Silk_control_encoder(
     psEnc->sCmn.minInternal_fs_Hz      = encControl->minInternalSampleRate;
     psEnc->sCmn.desiredInternal_fs_Hz  = encControl->desiredInternalSampleRate;
     psEnc->sCmn.useInBandFEC           = encControl->useInBandFEC;
-    psEnc->sCmn.nChannels              = encControl->nChannels;
+    psEnc->sCmn.nChannelsAPI           = encControl->nChannelsAPI;
+    psEnc->sCmn.nChannelsInternal      = encControl->nChannelsInternal;
     psEnc->sCmn.allow_bandwidth_switch = allow_bw_switch;
     psEnc->sCmn.channelNb              = channelNb;
 
     if( psEnc->sCmn.controlled_since_last_payload != 0 && psEnc->sCmn.prefillFlag == 0 ) {
         if( psEnc->sCmn.API_fs_Hz != psEnc->sCmn.prev_API_fs_Hz && psEnc->sCmn.fs_kHz > 0 ) {
             /* Change in API sampling rate in the middle of encoding a packet */
-            ret += SKP_Silk_setup_resamplers( psEnc, psEnc->sCmn.fs_kHz );
+            ret += silk_setup_resamplers( psEnc, psEnc->sCmn.fs_kHz );
         }
         return ret;
     }
@@ -95,22 +92,22 @@ SKP_int SKP_Silk_control_encoder(
     /********************************************/
     /* Determine internal sampling rate         */
     /********************************************/
-    fs_kHz = SKP_Silk_control_audio_bandwidth( &psEnc->sCmn );
+    fs_kHz = silk_control_audio_bandwidth( &psEnc->sCmn );
 
     /********************************************/
     /* Prepare resampler and buffered data      */
     /********************************************/
-    ret += SKP_Silk_setup_resamplers( psEnc, fs_kHz );
+    ret += silk_setup_resamplers( psEnc, fs_kHz );
 
     /********************************************/
     /* Set internal sampling frequency          */
     /********************************************/
-    ret += SKP_Silk_setup_fs( psEnc, fs_kHz, encControl->payloadSize_ms );
+    ret += silk_setup_fs( psEnc, fs_kHz, encControl->payloadSize_ms );
 
     /********************************************/
     /* Set encoding complexity                  */
     /********************************************/
-    ret += SKP_Silk_setup_complexity( &psEnc->sCmn, encControl->complexity  );
+    ret += silk_setup_complexity( &psEnc->sCmn, encControl->complexity  );
 
     /********************************************/
     /* Set packet loss rate measured by farend  */
@@ -120,29 +117,29 @@ SKP_int SKP_Silk_control_encoder(
     /********************************************/
     /* Set LBRR usage                           */
     /********************************************/
-    ret += SKP_Silk_setup_LBRR( &psEnc->sCmn, TargetRate_bps );
+    ret += silk_setup_LBRR( &psEnc->sCmn, TargetRate_bps );
 
     psEnc->sCmn.controlled_since_last_payload = 1;
 
     return ret;
 }
 
-SKP_int SKP_Silk_setup_resamplers(
-    SKP_Silk_encoder_state_Fxx      *psEnc,             /* I/O                      */
+SKP_int silk_setup_resamplers(
+    silk_encoder_state_Fxx          *psEnc,             /* I/O                      */
     SKP_int                         fs_kHz              /* I                        */
 )
 {
-    SKP_int   ret = SKP_SILK_NO_ERROR;
+    SKP_int   ret = SILK_NO_ERROR;
     SKP_int32 nSamples_temp;
     
     if( psEnc->sCmn.fs_kHz != fs_kHz || psEnc->sCmn.prev_API_fs_Hz != psEnc->sCmn.API_fs_Hz ) 
     {
         if( psEnc->sCmn.fs_kHz == 0 ) {
             /* Initialize the resampler for enc_API.c preparing resampling from API_fs_Hz to fs_kHz */
-            ret += SKP_Silk_resampler_init( &psEnc->sCmn.resampler_state, psEnc->sCmn.API_fs_Hz, fs_kHz * 1000 );
+            ret += silk_resampler_init( &psEnc->sCmn.resampler_state, psEnc->sCmn.API_fs_Hz, fs_kHz * 1000 );
         } else {
-            /* Allocate space for worst case temporary upsampling, 8 to 48 kHz, so a factor 6 */
-            SKP_int16 x_buf_API_fs_Hz[ ( 2 * MAX_FRAME_LENGTH + LA_SHAPE_MAX ) * ( MAX_API_FS_KHZ / 8 ) ];
+            /* Allocate worst case space for temporary upsampling, 8 to 48 kHz, so a factor 6 */
+            SKP_int16 x_buf_API_fs_Hz[ ( 2 * MAX_FRAME_LENGTH_MS + LA_SHAPE_MS ) * MAX_API_FS_KHZ ];
 #ifdef FIXED_POINT
             SKP_int16 *x_bufFIX = psEnc->x_buf;
 #else
@@ -158,19 +155,19 @@ SKP_int SKP_Silk_setup_resamplers(
             if( SKP_SMULBB( fs_kHz, 1000 ) < psEnc->sCmn.API_fs_Hz && psEnc->sCmn.fs_kHz != 0 ) {
                 /* Resample buffered data in x_buf to API_fs_Hz */
 
-                SKP_Silk_resampler_state_struct  temp_resampler_state;
+                silk_resampler_state_struct  temp_resampler_state;
 
                 /* Initialize resampler for temporary resampling of x_buf data to API_fs_Hz */
-                ret += SKP_Silk_resampler_init( &temp_resampler_state, SKP_SMULBB( psEnc->sCmn.fs_kHz, 1000 ), psEnc->sCmn.API_fs_Hz );
+                ret += silk_resampler_init( &temp_resampler_state, SKP_SMULBB( psEnc->sCmn.fs_kHz, 1000 ), psEnc->sCmn.API_fs_Hz );
 
                 /* Temporary resampling of x_buf data to API_fs_Hz */
-                ret += SKP_Silk_resampler( &temp_resampler_state, x_buf_API_fs_Hz, x_bufFIX, nSamples_temp );
+                ret += silk_resampler( &temp_resampler_state, x_buf_API_fs_Hz, x_bufFIX, nSamples_temp );
 
                 /* Calculate number of samples that has been temporarily upsampled */
                 nSamples_temp = SKP_DIV32_16( nSamples_temp * psEnc->sCmn.API_fs_Hz, SKP_SMULBB( psEnc->sCmn.fs_kHz, 1000 ) );
 
                 /* Initialize the resampler for enc_API.c preparing resampling from API_fs_Hz to fs_kHz */
-                ret += SKP_Silk_resampler_init( &psEnc->sCmn.resampler_state, psEnc->sCmn.API_fs_Hz, SKP_SMULBB( fs_kHz, 1000 ) );
+                ret += silk_resampler_init( &psEnc->sCmn.resampler_state, psEnc->sCmn.API_fs_Hz, SKP_SMULBB( fs_kHz, 1000 ) );
 
             } else {
                 /* Copy data */
@@ -179,7 +176,7 @@ SKP_int SKP_Silk_setup_resamplers(
 
             if( 1000 * fs_kHz != psEnc->sCmn.API_fs_Hz ) {
                 /* Correct resampler state (unless resampling by a factor 1) by resampling buffered data from API_fs_Hz to fs_kHz */
-                ret += SKP_Silk_resampler( &psEnc->sCmn.resampler_state, x_bufFIX, x_buf_API_fs_Hz, nSamples_temp );
+                ret += silk_resampler( &psEnc->sCmn.resampler_state, x_bufFIX, x_buf_API_fs_Hz, nSamples_temp );
             }
 #ifndef FIXED_POINT
             SKP_short2float_array( psEnc->x_buf, x_bufFIX, ( 2 * MAX_FRAME_LENGTH_MS + LA_SHAPE_MS ) * fs_kHz );
@@ -192,13 +189,13 @@ SKP_int SKP_Silk_setup_resamplers(
     return ret;
 }
 
-SKP_int SKP_Silk_setup_fs(
-    SKP_Silk_encoder_state_Fxx      *psEnc,             /* I/O                      */
+SKP_int silk_setup_fs(
+    silk_encoder_state_Fxx          *psEnc,             /* I/O                      */
     SKP_int                         fs_kHz,             /* I                        */
     SKP_int                         PacketSize_ms       /* I                        */
 )
 {
-    SKP_int ret = SKP_SILK_NO_ERROR;
+    SKP_int ret = SILK_NO_ERROR;
 
     /* Set packet size */
     if( PacketSize_ms != psEnc->sCmn.PacketSize_ms ) {
@@ -206,7 +203,7 @@ SKP_int SKP_Silk_setup_fs(
             ( PacketSize_ms !=  20 ) &&
             ( PacketSize_ms !=  40 ) && 
             ( PacketSize_ms !=  60 ) ) {
-            ret = SKP_SILK_ENC_PACKET_SIZE_NOT_SUPPORTED;
+            ret = SILK_ENC_PACKET_SIZE_NOT_SUPPORTED;
         }
         if( PacketSize_ms <= 10 ) {
             psEnc->sCmn.nFramesPerPacket = 1;
@@ -214,9 +211,9 @@ SKP_int SKP_Silk_setup_fs(
             psEnc->sCmn.frame_length = SKP_SMULBB( PacketSize_ms, fs_kHz );
             psEnc->sCmn.pitch_LPC_win_length = SKP_SMULBB( FIND_PITCH_LPC_WIN_MS_2_SF, fs_kHz );
             if( psEnc->sCmn.fs_kHz == 8 ) {
-                psEnc->sCmn.pitch_contour_iCDF = SKP_Silk_pitch_contour_10_ms_NB_iCDF;
+                psEnc->sCmn.pitch_contour_iCDF = silk_pitch_contour_10_ms_NB_iCDF;
             } else {
-                psEnc->sCmn.pitch_contour_iCDF = SKP_Silk_pitch_contour_10_ms_iCDF;
+                psEnc->sCmn.pitch_contour_iCDF = silk_pitch_contour_10_ms_iCDF;
             }
         } else {
             psEnc->sCmn.nFramesPerPacket = SKP_DIV32_16( PacketSize_ms, MAX_FRAME_LENGTH_MS );
@@ -224,9 +221,9 @@ SKP_int SKP_Silk_setup_fs(
             psEnc->sCmn.frame_length = SKP_SMULBB( 20, fs_kHz );
             psEnc->sCmn.pitch_LPC_win_length = SKP_SMULBB( FIND_PITCH_LPC_WIN_MS, fs_kHz );
             if( psEnc->sCmn.fs_kHz == 8 ) {
-                psEnc->sCmn.pitch_contour_iCDF = SKP_Silk_pitch_contour_NB_iCDF;
+                psEnc->sCmn.pitch_contour_iCDF = silk_pitch_contour_NB_iCDF;
             } else {
-                psEnc->sCmn.pitch_contour_iCDF = SKP_Silk_pitch_contour_iCDF; 
+                psEnc->sCmn.pitch_contour_iCDF = silk_pitch_contour_iCDF; 
             }
         }
         psEnc->sCmn.PacketSize_ms  = PacketSize_ms;
@@ -239,17 +236,17 @@ SKP_int SKP_Silk_setup_fs(
     if( psEnc->sCmn.fs_kHz != fs_kHz ) {
         /* reset part of the state */
 #ifdef FIXED_POINT
-        SKP_memset( &psEnc->sShape,               0, sizeof( SKP_Silk_shape_state_FIX ) );
-        SKP_memset( &psEnc->sPrefilt,             0, sizeof( SKP_Silk_prefilter_state_FIX ) );
+        SKP_memset( &psEnc->sShape,               0, sizeof( silk_shape_state_FIX ) );
+        SKP_memset( &psEnc->sPrefilt,             0, sizeof( silk_prefilter_state_FIX ) );
 #else
-        SKP_memset( &psEnc->sShape,               0, sizeof( SKP_Silk_shape_state_FLP ) );
-        SKP_memset( &psEnc->sPrefilt,             0, sizeof( SKP_Silk_prefilter_state_FLP ) );
+        SKP_memset( &psEnc->sShape,               0, sizeof( silk_shape_state_FLP ) );
+        SKP_memset( &psEnc->sPrefilt,             0, sizeof( silk_prefilter_state_FLP ) );
 #endif
-        SKP_memset( &psEnc->sCmn.sNSQ,            0, sizeof( SKP_Silk_nsq_state ) );
+        SKP_memset( &psEnc->sCmn.sNSQ,            0, sizeof( silk_nsq_state ) );
         SKP_memset( psEnc->sCmn.prev_NLSFq_Q15,   0, sizeof( psEnc->sCmn.prev_NLSFq_Q15 ) );
         SKP_memset( &psEnc->sCmn.sLP.In_LP_State, 0, sizeof( psEnc->sCmn.sLP.In_LP_State ) );
         psEnc->sCmn.inputBufIx                  = 0;
-        psEnc->sCmn.nFramesAnalyzed             = 0;
+        psEnc->sCmn.nFramesEncoded              = 0;
         psEnc->sCmn.TargetRate_bps              = 0;     /* trigger new SNR computation */
 
         /* Initialize non-zero parameters */
@@ -263,23 +260,23 @@ SKP_int SKP_Silk_setup_fs(
         psEnc->sCmn.fs_kHz = fs_kHz;
         if( psEnc->sCmn.fs_kHz == 8 ) {
             if( psEnc->sCmn.nb_subfr == MAX_NB_SUBFR ) {
-                psEnc->sCmn.pitch_contour_iCDF = SKP_Silk_pitch_contour_NB_iCDF; 
+                psEnc->sCmn.pitch_contour_iCDF = silk_pitch_contour_NB_iCDF; 
             } else {
-                psEnc->sCmn.pitch_contour_iCDF = SKP_Silk_pitch_contour_10_ms_NB_iCDF;
+                psEnc->sCmn.pitch_contour_iCDF = silk_pitch_contour_10_ms_NB_iCDF;
             }
         } else {
             if( psEnc->sCmn.nb_subfr == MAX_NB_SUBFR ) {
-                psEnc->sCmn.pitch_contour_iCDF = SKP_Silk_pitch_contour_iCDF; 
+                psEnc->sCmn.pitch_contour_iCDF = silk_pitch_contour_iCDF; 
             } else {
-                psEnc->sCmn.pitch_contour_iCDF = SKP_Silk_pitch_contour_10_ms_iCDF;
+                psEnc->sCmn.pitch_contour_iCDF = silk_pitch_contour_10_ms_iCDF;
             }
         }
         if( psEnc->sCmn.fs_kHz == 8 || psEnc->sCmn.fs_kHz == 12 ) {
             psEnc->sCmn.predictLPCOrder = MIN_LPC_ORDER;
-            psEnc->sCmn.psNLSF_CB  = &SKP_Silk_NLSF_CB_NB_MB;
+            psEnc->sCmn.psNLSF_CB  = &silk_NLSF_CB_NB_MB;
         } else {
             psEnc->sCmn.predictLPCOrder = MAX_LPC_ORDER;
-            psEnc->sCmn.psNLSF_CB  = &SKP_Silk_NLSF_CB_WB;
+            psEnc->sCmn.psNLSF_CB  = &silk_NLSF_CB_WB;
         }
         psEnc->sCmn.subfr_length   = SUB_FRAME_LENGTH_MS * fs_kHz;
         psEnc->sCmn.frame_length   = SKP_SMULBB( psEnc->sCmn.subfr_length, psEnc->sCmn.nb_subfr );
@@ -292,14 +289,14 @@ SKP_int SKP_Silk_setup_fs(
             psEnc->sCmn.pitch_LPC_win_length = SKP_SMULBB( FIND_PITCH_LPC_WIN_MS_2_SF, fs_kHz );
         }
         if( psEnc->sCmn.fs_kHz == 16 ) {
-            psEnc->sCmn.mu_LTP_Q9 = SKP_FIX_CONST( MU_LTP_QUANT_WB, 9 );
-            psEnc->sCmn.pitch_lag_low_bits_iCDF = SKP_Silk_uniform8_iCDF;
+            psEnc->sCmn.mu_LTP_Q9 = SILK_FIX_CONST( MU_LTP_QUANT_WB, 9 );
+            psEnc->sCmn.pitch_lag_low_bits_iCDF = silk_uniform8_iCDF;
         } else if( psEnc->sCmn.fs_kHz == 12 ) {
-            psEnc->sCmn.mu_LTP_Q9 = SKP_FIX_CONST( MU_LTP_QUANT_MB, 9 );
-            psEnc->sCmn.pitch_lag_low_bits_iCDF = SKP_Silk_uniform6_iCDF;
+            psEnc->sCmn.mu_LTP_Q9 = SILK_FIX_CONST( MU_LTP_QUANT_MB, 9 );
+            psEnc->sCmn.pitch_lag_low_bits_iCDF = silk_uniform6_iCDF;
         } else {
-            psEnc->sCmn.mu_LTP_Q9 = SKP_FIX_CONST( MU_LTP_QUANT_NB, 9 );
-            psEnc->sCmn.pitch_lag_low_bits_iCDF = SKP_Silk_uniform4_iCDF;
+            psEnc->sCmn.mu_LTP_Q9 = SILK_FIX_CONST( MU_LTP_QUANT_NB, 9 );
+            psEnc->sCmn.pitch_lag_low_bits_iCDF = silk_uniform4_iCDF;
         }
     }
 
@@ -309,8 +306,8 @@ SKP_int SKP_Silk_setup_fs(
     return ret;
 }
 
-SKP_int SKP_Silk_setup_complexity(
-    SKP_Silk_encoder_state          *psEncC,            /* I/O                      */
+SKP_int silk_setup_complexity(
+    silk_encoder_state              *psEncC,            /* I/O                      */
     SKP_int                         Complexity          /* I                        */
 )
 {
@@ -319,8 +316,8 @@ SKP_int SKP_Silk_setup_complexity(
     /* Set encoding complexity */
     SKP_assert( Complexity >= 0 && Complexity <= 10 );
     if( Complexity < 2 ) {
-        psEncC->pitchEstimationComplexity       = SKP_Silk_PE_MIN_COMPLEX;
-        psEncC->pitchEstimationThreshold_Q16    = SKP_FIX_CONST( 0.8, 16 );
+        psEncC->pitchEstimationComplexity       = SILK_PE_MIN_COMPLEX;
+        psEncC->pitchEstimationThreshold_Q16    = SILK_FIX_CONST( 0.8, 16 );
         psEncC->pitchEstimationLPCOrder         = 6;
         psEncC->shapingLPCOrder                 = 8;
         psEncC->la_shape                        = 3 * psEncC->fs_kHz;
@@ -330,8 +327,8 @@ SKP_int SKP_Silk_setup_complexity(
         psEncC->NLSF_MSVQ_Survivors             = 2;
         psEncC->warping_Q16                     = 0;
     } else if( Complexity < 4 ) {
-        psEncC->pitchEstimationComplexity       = SKP_Silk_PE_MID_COMPLEX;
-        psEncC->pitchEstimationThreshold_Q16    = SKP_FIX_CONST( 0.76, 16 );
+        psEncC->pitchEstimationComplexity       = SILK_PE_MID_COMPLEX;
+        psEncC->pitchEstimationThreshold_Q16    = SILK_FIX_CONST( 0.76, 16 );
         psEncC->pitchEstimationLPCOrder         = 8;
         psEncC->shapingLPCOrder                 = 10;
         psEncC->la_shape                        = 5 * psEncC->fs_kHz;
@@ -341,8 +338,8 @@ SKP_int SKP_Silk_setup_complexity(
         psEncC->NLSF_MSVQ_Survivors             = 4;
         psEncC->warping_Q16                     = 0;
     } else if( Complexity < 6 ) {
-        psEncC->pitchEstimationComplexity       = SKP_Silk_PE_MID_COMPLEX;
-        psEncC->pitchEstimationThreshold_Q16    = SKP_FIX_CONST( 0.74, 16 );
+        psEncC->pitchEstimationComplexity       = SILK_PE_MID_COMPLEX;
+        psEncC->pitchEstimationThreshold_Q16    = SILK_FIX_CONST( 0.74, 16 );
         psEncC->pitchEstimationLPCOrder         = 10;
         psEncC->shapingLPCOrder                 = 12;
         psEncC->la_shape                        = 5 * psEncC->fs_kHz;
@@ -350,10 +347,10 @@ SKP_int SKP_Silk_setup_complexity(
         psEncC->useInterpolatedNLSFs            = 0;
         psEncC->LTPQuantLowComplexity           = 0;
         psEncC->NLSF_MSVQ_Survivors             = 6;
-        psEncC->warping_Q16                     = psEncC->fs_kHz * SKP_FIX_CONST( WARPING_MULTIPLIER, 16 );
+        psEncC->warping_Q16                     = psEncC->fs_kHz * SILK_FIX_CONST( WARPING_MULTIPLIER, 16 );
     } else if( Complexity < 8 ) {
-        psEncC->pitchEstimationComplexity       = SKP_Silk_PE_MID_COMPLEX;
-        psEncC->pitchEstimationThreshold_Q16    = SKP_FIX_CONST( 0.72, 16 );
+        psEncC->pitchEstimationComplexity       = SILK_PE_MID_COMPLEX;
+        psEncC->pitchEstimationThreshold_Q16    = SILK_FIX_CONST( 0.72, 16 );
         psEncC->pitchEstimationLPCOrder         = 12;
         psEncC->shapingLPCOrder                 = 14;
         psEncC->la_shape                        = 5 * psEncC->fs_kHz;
@@ -361,10 +358,10 @@ SKP_int SKP_Silk_setup_complexity(
         psEncC->useInterpolatedNLSFs            = 0;
         psEncC->LTPQuantLowComplexity           = 0;
         psEncC->NLSF_MSVQ_Survivors             = 8;
-        psEncC->warping_Q16                     = psEncC->fs_kHz * SKP_FIX_CONST( WARPING_MULTIPLIER, 16 );
+        psEncC->warping_Q16                     = psEncC->fs_kHz * SILK_FIX_CONST( WARPING_MULTIPLIER, 16 );
     } else {
-        psEncC->pitchEstimationComplexity       = SKP_Silk_PE_MAX_COMPLEX;
-        psEncC->pitchEstimationThreshold_Q16    = SKP_FIX_CONST( 0.7, 16 );
+        psEncC->pitchEstimationComplexity       = SILK_PE_MAX_COMPLEX;
+        psEncC->pitchEstimationThreshold_Q16    = SILK_FIX_CONST( 0.7, 16 );
         psEncC->pitchEstimationLPCOrder         = 16;
         psEncC->shapingLPCOrder                 = 16;
         psEncC->la_shape                        = 5 * psEncC->fs_kHz;
@@ -372,12 +369,13 @@ SKP_int SKP_Silk_setup_complexity(
         psEncC->useInterpolatedNLSFs            = 1;
         psEncC->LTPQuantLowComplexity           = 0;
         psEncC->NLSF_MSVQ_Survivors             = 16;
-        psEncC->warping_Q16                     = psEncC->fs_kHz * SKP_FIX_CONST( WARPING_MULTIPLIER, 16 );
+        psEncC->warping_Q16                     = psEncC->fs_kHz * SILK_FIX_CONST( WARPING_MULTIPLIER, 16 );
     }
 
     /* Do not allow higher pitch estimation LPC order than predict LPC order */
     psEncC->pitchEstimationLPCOrder = SKP_min_int( psEncC->pitchEstimationLPCOrder, psEncC->predictLPCOrder );
     psEncC->shapeWinLength          = SUB_FRAME_LENGTH_MS * psEncC->fs_kHz + 2 * psEncC->la_shape;
+    psEncC->Complexity              = Complexity;
 
     SKP_assert( psEncC->pitchEstimationLPCOrder <= MAX_FIND_PITCH_LPC_ORDER );
     SKP_assert( psEncC->shapingLPCOrder         <= MAX_SHAPE_LPC_ORDER      );
@@ -390,30 +388,30 @@ SKP_int SKP_Silk_setup_complexity(
     return ret;
 }
 
-SKP_INLINE SKP_int SKP_Silk_setup_LBRR(
-    SKP_Silk_encoder_state          *psEncC,            /* I/O                      */
+SKP_INLINE SKP_int silk_setup_LBRR(
+    silk_encoder_state          *psEncC,            /* I/O                      */
     const SKP_int32                 TargetRate_bps      /* I                        */
 )
 {
-    SKP_int   ret = SKP_SILK_NO_ERROR;
-    SKP_int32 LBRRRate_thres_bps;
+    SKP_int   ret = SILK_NO_ERROR;
+    SKP_int32 LBRR_rate_thres_bps;
 
-    SKP_assert( psEncC->fs_kHz == 8 || psEncC->fs_kHz == 12 || psEncC->fs_kHz == 16 );
-    if( psEncC->fs_kHz == 8 ) {
-        LBRRRate_thres_bps = LBRR_NB_MIN_RATE_BPS;
-    } else if( psEncC->fs_kHz == 12 ) {
-        LBRRRate_thres_bps = LBRR_MB_MIN_RATE_BPS;
-    } else {
-        LBRRRate_thres_bps = LBRR_WB_MIN_RATE_BPS;
-    }
+    psEncC->LBRR_enabled = 0;
+    if( psEncC->useInBandFEC && psEncC->PacketLoss_perc > 0 ) {
+        if( psEncC->fs_kHz == 8 ) {
+            LBRR_rate_thres_bps = LBRR_NB_MIN_RATE_BPS;
+        } else if( psEncC->fs_kHz == 12 ) {
+            LBRR_rate_thres_bps = LBRR_MB_MIN_RATE_BPS;
+        } else {
+            LBRR_rate_thres_bps = LBRR_WB_MIN_RATE_BPS;
+        }
+        LBRR_rate_thres_bps = SKP_SMULWB( SKP_MUL( LBRR_rate_thres_bps, 125 - SKP_min( psEncC->PacketLoss_perc, 25 ) ), SILK_FIX_CONST( 0.01, 16 ) );
 
-    LBRRRate_thres_bps = SKP_RSHIFT( SKP_SMULBB( LBRRRate_thres_bps, 7 - psEncC->PacketLoss_perc ), 2 );
-    if( psEncC->useInBandFEC && TargetRate_bps >= LBRRRate_thres_bps && psEncC->PacketLoss_perc > 0 ) {
-        /* Set gain increase / rate reduction for LBRR usage */
-        psEncC->LBRR_GainIncreases = SKP_max_int( 7 - SKP_SMULWB( psEncC->PacketLoss_perc, SKP_FIX_CONST( 0.4, 16 ) ), 2 );
-        psEncC->LBRR_enabled = 1;
-    } else {
-        psEncC->LBRR_enabled = 0;
+        if( TargetRate_bps > LBRR_rate_thres_bps ) {
+            /* Set gain increase for coding LBRR excitation */
+            psEncC->LBRR_enabled = 1;
+            psEncC->LBRR_GainIncreases = SKP_max_int( 7 - SKP_SMULWB( psEncC->PacketLoss_perc, SILK_FIX_CONST( 0.4, 16 ) ), 2 );
+        }
     }
 
     return ret;
diff --git a/silk/SKP_Silk_create_init_destroy.c b/silk/silk_create_init_destroy.c
similarity index 86%
rename from silk/SKP_Silk_create_init_destroy.c
rename to silk/silk_create_init_destroy.c
index 0a1e02a4..10500bb1 100644
--- a/silk/SKP_Silk_create_init_destroy.c
+++ b/silk/silk_create_init_destroy.c
@@ -25,28 +25,28 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 
 /************************/
 /* Init Decoder State   */
 /************************/
-SKP_int SKP_Silk_init_decoder(
-    SKP_Silk_decoder_state      *psDec              /* I/O  Decoder state pointer                       */
+SKP_int silk_init_decoder(
+    silk_decoder_state      *psDec              /* I/O  Decoder state pointer                       */
 )
 {
     /* Clear the entire encoder state, except anything copied */
-    SKP_memset( psDec, 0, sizeof( SKP_Silk_decoder_state ) );
+    SKP_memset( psDec, 0, sizeof( silk_decoder_state ) );
 
     /* Used to deactivate e.g. LSF interpolation and fluctuation reduction */
     psDec->first_frame_after_reset = 1;
     psDec->prev_inv_gain_Q16 = 65536;
 
     /* Reset CNG state */
-    SKP_Silk_CNG_Reset( psDec );
+    silk_CNG_Reset( psDec );
 
     /* Reset PLC state */
-    SKP_Silk_PLC_Reset( psDec );
+    silk_PLC_Reset( psDec );
     
     return(0);
 }
diff --git a/silk/SKP_Silk_debug.c b/silk/silk_debug.c
similarity index 52%
rename from silk/SKP_Silk_debug.c
rename to silk/silk_debug.c
index a7d99556..d948960b 100644
--- a/silk/SKP_Silk_debug.c
+++ b/silk/silk_debug.c
@@ -25,19 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*                                                                      *
- * SKP_debug.c                                                          *
- *                                                                      *
- * This contains code to help debugging                                 *
- *                                                                      *
- * Copyright 2009 (c), Skype Limited                                    *
- * Date: 090629                                                         *
- *                                                                      */
+#include "silk_debug.h"
+#include "silk_SigProc_FIX.h"
 
-#include "SKP_debug.h"
-#include "SKP_Silk_SigProc_FIX.h"
-
-#if SKP_TIC_TOC
+#if SILK_TIC_TOC
 
 #ifdef _WIN32
 
@@ -47,7 +38,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <sys/time.h>
 #endif
 
-unsigned long GetHighResolutionTime(void) /* O: time in usec*/
+unsigned long silk_GetHighResolutionTime(void) /* O: time in usec*/
 {
     /* Returns a time counter in microsec   */
     /* the resolution is platform dependent */
@@ -67,24 +58,24 @@ unsigned long GetHighResolutionTime(void) /* O: time in usec*/
 }
 #endif
 
-int           SKP_Timer_nTimers = 0;
-int           SKP_Timer_depth_ctr = 0;
-char          SKP_Timer_tags[SKP_NUM_TIMERS_MAX][SKP_NUM_TIMERS_MAX_TAG_LEN];
+int           silk_Timer_nTimers = 0;
+int           silk_Timer_depth_ctr = 0;
+char          silk_Timer_tags[SKP_NUM_TIMERS_MAX][SKP_NUM_TIMERS_MAX_TAG_LEN];
 #ifdef WIN32
-LARGE_INTEGER SKP_Timer_start[SKP_NUM_TIMERS_MAX];
+LARGE_INTEGER silk_Timer_start[SKP_NUM_TIMERS_MAX];
 #else
-unsigned long SKP_Timer_start[SKP_NUM_TIMERS_MAX];
+unsigned long silk_Timer_start[SKP_NUM_TIMERS_MAX];
 #endif  
-unsigned int  SKP_Timer_cnt[SKP_NUM_TIMERS_MAX];
-SKP_int64     SKP_Timer_min[SKP_NUM_TIMERS_MAX];
-SKP_int64     SKP_Timer_sum[SKP_NUM_TIMERS_MAX];
-SKP_int64     SKP_Timer_max[SKP_NUM_TIMERS_MAX];
-SKP_int64     SKP_Timer_depth[SKP_NUM_TIMERS_MAX];
+unsigned int  silk_Timer_cnt[SKP_NUM_TIMERS_MAX];
+SKP_int64     silk_Timer_min[SKP_NUM_TIMERS_MAX];
+SKP_int64     silk_Timer_sum[SKP_NUM_TIMERS_MAX];
+SKP_int64     silk_Timer_max[SKP_NUM_TIMERS_MAX];
+SKP_int64     silk_Timer_depth[SKP_NUM_TIMERS_MAX];
 
 #ifdef WIN32
-void SKP_TimerSave(char *file_name)
+void silk_TimerSave(char *file_name)
 {
-    if( SKP_Timer_nTimers > 0 ) 
+    if( silk_Timer_nTimers > 0 ) 
     {
         int k;
         FILE *fp;
@@ -103,62 +94,62 @@ void SKP_TimerSave(char *file_name)
         QueryPerformanceFrequency(&lpFrequency);
         /* print results to file */
         sum_avg = 0.0f;
-        for( k = 0; k < SKP_Timer_nTimers; k++ ) {
-            if (SKP_Timer_depth[k] == 0) {
-                sum_avg += (1e6 * SKP_Timer_sum[k] / SKP_Timer_cnt[k] - del) / lpFrequency.QuadPart * SKP_Timer_cnt[k];
+        for( k = 0; k < silk_Timer_nTimers; k++ ) {
+            if (silk_Timer_depth[k] == 0) {
+                sum_avg += (1e6 * silk_Timer_sum[k] / silk_Timer_cnt[k] - del) / lpFrequency.QuadPart * silk_Timer_cnt[k];
             }
         }
         fp = fopen(file_name, "w");
         fprintf(fp, "                                min         avg     %%         max      count\n");
-        for( k = 0; k < SKP_Timer_nTimers; k++ ) {
-            if (SKP_Timer_depth[k] == 0) {
-                fprintf(fp, "%-28s", SKP_Timer_tags[k]);
-            } else if (SKP_Timer_depth[k] == 1) {
-                fprintf(fp, " %-27s", SKP_Timer_tags[k]);
-            } else if (SKP_Timer_depth[k] == 2) {
-                fprintf(fp, "  %-26s", SKP_Timer_tags[k]);
-            } else if (SKP_Timer_depth[k] == 3) {
-                fprintf(fp, "   %-25s", SKP_Timer_tags[k]);
+        for( k = 0; k < silk_Timer_nTimers; k++ ) {
+            if (silk_Timer_depth[k] == 0) {
+                fprintf(fp, "%-28s", silk_Timer_tags[k]);
+            } else if (silk_Timer_depth[k] == 1) {
+                fprintf(fp, " %-27s", silk_Timer_tags[k]);
+            } else if (silk_Timer_depth[k] == 2) {
+                fprintf(fp, "  %-26s", silk_Timer_tags[k]);
+            } else if (silk_Timer_depth[k] == 3) {
+                fprintf(fp, "   %-25s", silk_Timer_tags[k]);
             } else {
-                fprintf(fp, "    %-24s", SKP_Timer_tags[k]);
+                fprintf(fp, "    %-24s", silk_Timer_tags[k]);
             }
-            avg = (1e6 * SKP_Timer_sum[k] / SKP_Timer_cnt[k] - del) / lpFrequency.QuadPart;
-            fprintf(fp, "%8.2f", (1e6 * (SKP_max_64(SKP_Timer_min[k] - del, 0))) / lpFrequency.QuadPart);
-            fprintf(fp, "%12.2f %6.2f", avg, 100.0 * avg / sum_avg * SKP_Timer_cnt[k]);
-            fprintf(fp, "%12.2f", (1e6 * (SKP_max_64(SKP_Timer_max[k] - del, 0))) / lpFrequency.QuadPart);
-            fprintf(fp, "%10d\n", SKP_Timer_cnt[k]);
+            avg = (1e6 * silk_Timer_sum[k] / silk_Timer_cnt[k] - del) / lpFrequency.QuadPart;
+            fprintf(fp, "%8.2f", (1e6 * (SKP_max_64(silk_Timer_min[k] - del, 0))) / lpFrequency.QuadPart);
+            fprintf(fp, "%12.2f %6.2f", avg, 100.0 * avg / sum_avg * silk_Timer_cnt[k]);
+            fprintf(fp, "%12.2f", (1e6 * (SKP_max_64(silk_Timer_max[k] - del, 0))) / lpFrequency.QuadPart);
+            fprintf(fp, "%10d\n", silk_Timer_cnt[k]);
         }
         fprintf(fp, "                                microseconds\n");
         fclose(fp);
     }
 }
 #else
-void SKP_TimerSave(char *file_name)
+void silk_TimerSave(char *file_name)
 {
-    if( SKP_Timer_nTimers > 0 ) 
+    if( silk_Timer_nTimers > 0 ) 
     {
         int k;
         FILE *fp;
         /* print results to file */
         fp = fopen(file_name, "w");
         fprintf(fp, "                                min         avg         max      count\n");
-        for( k = 0; k < SKP_Timer_nTimers; k++ )
+        for( k = 0; k < silk_Timer_nTimers; k++ )
         {
-            if (SKP_Timer_depth[k] == 0) {
-                fprintf(fp, "%-28s", SKP_Timer_tags[k]);
-            } else if (SKP_Timer_depth[k] == 1) {
-                fprintf(fp, " %-27s", SKP_Timer_tags[k]);
-            } else if (SKP_Timer_depth[k] == 2) {
-                fprintf(fp, "  %-26s", SKP_Timer_tags[k]);
-            } else if (SKP_Timer_depth[k] == 3) {
-                fprintf(fp, "   %-25s", SKP_Timer_tags[k]);
+            if (silk_Timer_depth[k] == 0) {
+                fprintf(fp, "%-28s", silk_Timer_tags[k]);
+            } else if (silk_Timer_depth[k] == 1) {
+                fprintf(fp, " %-27s", silk_Timer_tags[k]);
+            } else if (silk_Timer_depth[k] == 2) {
+                fprintf(fp, "  %-26s", silk_Timer_tags[k]);
+            } else if (silk_Timer_depth[k] == 3) {
+                fprintf(fp, "   %-25s", silk_Timer_tags[k]);
             } else {
-                fprintf(fp, "    %-24s", SKP_Timer_tags[k]);
+                fprintf(fp, "    %-24s", silk_Timer_tags[k]);
             }
-            fprintf(fp, "%d ", SKP_Timer_min[k]);
-            fprintf(fp, "%f ", (double)SKP_Timer_sum[k] / (double)SKP_Timer_cnt[k]);
-            fprintf(fp, "%d ", SKP_Timer_max[k]);
-            fprintf(fp, "%10d\n", SKP_Timer_cnt[k]);
+            fprintf(fp, "%d ", silk_Timer_min[k]);
+            fprintf(fp, "%f ", (double)silk_Timer_sum[k] / (double)silk_Timer_cnt[k]);
+            fprintf(fp, "%d ", silk_Timer_max[k]);
+            fprintf(fp, "%10d\n", silk_Timer_cnt[k]);
         }
         fprintf(fp, "                                microseconds\n");
         fclose(fp);
@@ -166,10 +157,10 @@ void SKP_TimerSave(char *file_name)
 }
 #endif
 
-#endif /* SKP_TIC_TOC */
+#endif /* SILK_TIC_TOC */
 
-#if SKP_DEBUG
-FILE *SKP_debug_store_fp[ SKP_NUM_STORES_MAX ];
-int SKP_debug_store_count = 0;
-#endif /* SKP_DEBUG */
+#if SILK_DEBUG
+FILE *silk_debug_store_fp[ SKP_NUM_STORES_MAX ];
+int silk_debug_store_count = 0;
+#endif /* SILK_DEBUG */
 
diff --git a/silk/SKP_debug.h b/silk/silk_debug.h
similarity index 66%
rename from silk/SKP_debug.h
rename to silk/silk_debug.h
index 84952098..1aad9f76 100644
--- a/silk/SKP_debug.h
+++ b/silk/silk_debug.h
@@ -25,14 +25,14 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#ifndef _SKP_DEBUG_H_
-#define _SKP_DEBUG_H_
+#ifndef _SILK_DEBUG_H_
+#define _SILK_DEBUG_H_
 
 #ifdef _WIN32
 #define _CRT_SECURE_NO_DEPRECATE    1
 #endif
 
-#include "SKP_Silk_typedef.h"
+#include "silk_typedef.h"
 #include <stdio.h>      /* file writing */
 #include <string.h>     /* strcpy, strcmp */
 
@@ -43,28 +43,28 @@ extern "C"
 
 unsigned long GetHighResolutionTime(void); /* O: time in usec*/
 
-/* make SKP_DEBUG dependent on compiler's _DEBUG */
+/* make SILK_DEBUG dependent on compiler's _DEBUG */
 #if defined _WIN32
     #ifdef _DEBUG
-        #define SKP_DEBUG  1
+        #define SILK_DEBUG  1
     #else
-        #define SKP_DEBUG  0
+        #define SILK_DEBUG  0
     #endif
 
     /* overrule the above */
     #if 0
     //  #define NO_ASSERTS
-    #undef  SKP_DEBUG  
-    #define SKP_DEBUG  1
+    #undef  SILK_DEBUG  
+    #define SILK_DEBUG  1
     #endif
 #else
-    #define SKP_DEBUG  0
+    #define SILK_DEBUG  0
 #endif
 
 /* Flag for using timers */
-#define SKP_TIC_TOC 0
+#define SILK_TIC_TOC 0
 
-#if SKP_TIC_TOC
+#if SILK_TIC_TOC
 
 #if (defined(_WIN32) || defined(_WINCE)) 
 #include <windows.h>    /* timer */
@@ -84,30 +84,30 @@ unsigned long GetHighResolutionTime(void); /* O: time in usec*/
 /*                                                                  */
 /* and call the following just before exiting (from main)           */
 /*                                                                  */
-/* SKP_TimerSave("SKP_TimingData.txt");                             */
+/* silk_TimerSave("SKP_TimingData.txt");                             */
 /*                                                                  */
 /* results are now in SKP_TimingData.txt                            */
 
-void SKP_TimerSave(char *file_name);
+void silk_TimerSave(char *file_name);
 
 /* max number of timers (in different locations) */
 #define SKP_NUM_TIMERS_MAX                  50
 /* max length of name tags in TIC(..), TOC(..) */
 #define SKP_NUM_TIMERS_MAX_TAG_LEN          30
 
-extern int           SKP_Timer_nTimers;
-extern int           SKP_Timer_depth_ctr;
-extern char          SKP_Timer_tags[SKP_NUM_TIMERS_MAX][SKP_NUM_TIMERS_MAX_TAG_LEN];
+extern int           silk_Timer_nTimers;
+extern int           silk_Timer_depth_ctr;
+extern char          silk_Timer_tags[SKP_NUM_TIMERS_MAX][SKP_NUM_TIMERS_MAX_TAG_LEN];
 #ifdef _WIN32
-extern LARGE_INTEGER SKP_Timer_start[SKP_NUM_TIMERS_MAX];
+extern LARGE_INTEGER silk_Timer_start[SKP_NUM_TIMERS_MAX];
 #else
-extern unsigned long SKP_Timer_start[SKP_NUM_TIMERS_MAX];
+extern unsigned long silk_Timer_start[SKP_NUM_TIMERS_MAX];
 #endif  
-extern unsigned int  SKP_Timer_cnt[SKP_NUM_TIMERS_MAX];
-extern SKP_int64     SKP_Timer_sum[SKP_NUM_TIMERS_MAX];
-extern SKP_int64     SKP_Timer_max[SKP_NUM_TIMERS_MAX];
-extern SKP_int64     SKP_Timer_min[SKP_NUM_TIMERS_MAX];
-extern SKP_int64     SKP_Timer_depth[SKP_NUM_TIMERS_MAX];
+extern unsigned int  silk_Timer_cnt[SKP_NUM_TIMERS_MAX];
+extern SKP_int64     silk_Timer_sum[SKP_NUM_TIMERS_MAX];
+extern SKP_int64     silk_Timer_max[SKP_NUM_TIMERS_MAX];
+extern SKP_int64     silk_Timer_min[SKP_NUM_TIMERS_MAX];
+extern SKP_int64     silk_Timer_depth[SKP_NUM_TIMERS_MAX];
 
 /* WARNING: TIC()/TOC can measure only up to 0.1 seconds at a time */
 #ifdef _WIN32
@@ -118,25 +118,25 @@ extern SKP_int64     SKP_Timer_depth[SKP_NUM_TIMERS_MAX];
     {                                                       \
         int k;                                              \
         init = 1;                                           \
-        for( k = 0; k < SKP_Timer_nTimers; k++ ) {          \
-            if( strcmp(SKP_Timer_tags[k], #TAG_NAME) == 0 ) {   \
+        for( k = 0; k < silk_Timer_nTimers; k++ ) {          \
+            if( strcmp(silk_Timer_tags[k], #TAG_NAME) == 0 ) {   \
                 ID = k;                                     \
                 break;                                      \
             }                                               \
         }                                                   \
         if (ID == -1) {                                     \
-            ID = SKP_Timer_nTimers;                         \
-            SKP_Timer_nTimers++;                            \
-            SKP_Timer_depth[ID] = SKP_Timer_depth_ctr;      \
-            strcpy(SKP_Timer_tags[ID], #TAG_NAME);          \
-            SKP_Timer_cnt[ID] = 0;                          \
-            SKP_Timer_sum[ID] = 0;                          \
-            SKP_Timer_min[ID] = 0xFFFFFFFF;                 \
-            SKP_Timer_max[ID] = 0;                          \
+            ID = silk_Timer_nTimers;                         \
+            silk_Timer_nTimers++;                            \
+            silk_Timer_depth[ID] = silk_Timer_depth_ctr;      \
+            strcpy(silk_Timer_tags[ID], #TAG_NAME);          \
+            silk_Timer_cnt[ID] = 0;                          \
+            silk_Timer_sum[ID] = 0;                          \
+            silk_Timer_min[ID] = 0xFFFFFFFF;                 \
+            silk_Timer_max[ID] = 0;                          \
         }                                                   \
     }                                                       \
-    SKP_Timer_depth_ctr++;                                  \
-    QueryPerformanceCounter(&SKP_Timer_start[ID]);          \
+    silk_Timer_depth_ctr++;                                  \
+    QueryPerformanceCounter(&silk_Timer_start[ID]);          \
 }
 #else
 #define TIC(TAG_NAME) {                                     \
@@ -146,25 +146,25 @@ extern SKP_int64     SKP_Timer_depth[SKP_NUM_TIMERS_MAX];
     {                                                       \
         int k;                                              \
         init = 1;                                           \
-        for( k = 0; k < SKP_Timer_nTimers; k++ ) {          \
-        if( strcmp(SKP_Timer_tags[k], #TAG_NAME) == 0 ) {   \
+        for( k = 0; k < silk_Timer_nTimers; k++ ) {          \
+        if( strcmp(silk_Timer_tags[k], #TAG_NAME) == 0 ) {   \
                 ID = k;                                     \
                 break;                                      \
             }                                               \
         }                                                   \
         if (ID == -1) {                                     \
-            ID = SKP_Timer_nTimers;                         \
-            SKP_Timer_nTimers++;                            \
-            SKP_Timer_depth[ID] = SKP_Timer_depth_ctr;      \
-            strcpy(SKP_Timer_tags[ID], #TAG_NAME);          \
-            SKP_Timer_cnt[ID] = 0;                          \
-            SKP_Timer_sum[ID] = 0;                          \
-            SKP_Timer_min[ID] = 0xFFFFFFFF;                 \
-            SKP_Timer_max[ID] = 0;                          \
+            ID = silk_Timer_nTimers;                         \
+            silk_Timer_nTimers++;                            \
+            silk_Timer_depth[ID] = silk_Timer_depth_ctr;      \
+            strcpy(silk_Timer_tags[ID], #TAG_NAME);          \
+            silk_Timer_cnt[ID] = 0;                          \
+            silk_Timer_sum[ID] = 0;                          \
+            silk_Timer_min[ID] = 0xFFFFFFFF;                 \
+            silk_Timer_max[ID] = 0;                          \
         }                                                   \
     }                                                       \
-    SKP_Timer_depth_ctr++;                                  \
-    SKP_Timer_start[ID] = GetHighResolutionTime();          \
+    silk_Timer_depth_ctr++;                                  \
+    silk_Timer_start[ID] = GetHighResolutionTime();          \
 }
 #endif
 
@@ -177,25 +177,25 @@ extern SKP_int64     SKP_Timer_depth[SKP_NUM_TIMERS_MAX];
     {                                                               \
         int k;                                                      \
         init = 1;                                                   \
-        for( k = 0; k < SKP_Timer_nTimers; k++ ) {                  \
-            if( strcmp(SKP_Timer_tags[k], #TAG_NAME) == 0 ) {       \
+        for( k = 0; k < silk_Timer_nTimers; k++ ) {                  \
+            if( strcmp(silk_Timer_tags[k], #TAG_NAME) == 0 ) {       \
                 ID = k;                                             \
                 break;                                              \
             }                                                       \
         }                                                           \
     }                                                               \
     QueryPerformanceCounter(&lpPerformanceCount);                   \
-    lpPerformanceCount.QuadPart -= SKP_Timer_start[ID].QuadPart;    \
+    lpPerformanceCount.QuadPart -= silk_Timer_start[ID].QuadPart;    \
     if((lpPerformanceCount.QuadPart < 100000000) &&                 \
         (lpPerformanceCount.QuadPart >= 0)) {                       \
-        SKP_Timer_cnt[ID]++;                                        \
-        SKP_Timer_sum[ID] += lpPerformanceCount.QuadPart;           \
-        if( lpPerformanceCount.QuadPart > SKP_Timer_max[ID] )       \
-            SKP_Timer_max[ID] = lpPerformanceCount.QuadPart;        \
-        if( lpPerformanceCount.QuadPart < SKP_Timer_min[ID] )       \
-            SKP_Timer_min[ID] = lpPerformanceCount.QuadPart;        \
+        silk_Timer_cnt[ID]++;                                        \
+        silk_Timer_sum[ID] += lpPerformanceCount.QuadPart;           \
+        if( lpPerformanceCount.QuadPart > silk_Timer_max[ID] )       \
+            silk_Timer_max[ID] = lpPerformanceCount.QuadPart;        \
+        if( lpPerformanceCount.QuadPart < silk_Timer_min[ID] )       \
+            silk_Timer_min[ID] = lpPerformanceCount.QuadPart;        \
     }                                                               \
-    SKP_Timer_depth_ctr--;                                          \
+    silk_Timer_depth_ctr--;                                          \
 }
 #else
 #define TOC(TAG_NAME) {                                             \
@@ -206,40 +206,40 @@ extern SKP_int64     SKP_Timer_depth[SKP_NUM_TIMERS_MAX];
     {                                                               \
         int k;                                                      \
         init = 1;                                                   \
-        for( k = 0; k < SKP_Timer_nTimers; k++ ) {                  \
-            if( strcmp(SKP_Timer_tags[k], #TAG_NAME) == 0 ) {       \
+        for( k = 0; k < silk_Timer_nTimers; k++ ) {                  \
+            if( strcmp(silk_Timer_tags[k], #TAG_NAME) == 0 ) {       \
                 ID = k;                                             \
                 break;                                              \
             }                                                       \
         }                                                           \
     }                                                               \
     endTime = GetHighResolutionTime();                              \
-    endTime -= SKP_Timer_start[ID];                                 \
+    endTime -= silk_Timer_start[ID];                                 \
     if((endTime < 100000000) &&                                     \
         (endTime >= 0)) {                                           \
-        SKP_Timer_cnt[ID]++;                                        \
-        SKP_Timer_sum[ID] += endTime;                               \
-        if( endTime > SKP_Timer_max[ID] )                           \
-            SKP_Timer_max[ID] = endTime;                            \
-        if( endTime < SKP_Timer_min[ID] )                           \
-            SKP_Timer_min[ID] = endTime;                            \
+        silk_Timer_cnt[ID]++;                                        \
+        silk_Timer_sum[ID] += endTime;                               \
+        if( endTime > silk_Timer_max[ID] )                           \
+            silk_Timer_max[ID] = endTime;                            \
+        if( endTime < silk_Timer_min[ID] )                           \
+            silk_Timer_min[ID] = endTime;                            \
     }                                                               \
-        SKP_Timer_depth_ctr--;                                      \
+        silk_Timer_depth_ctr--;                                      \
 }
 #endif
 
-#else /* SKP_TIC_TOC */
+#else /* SILK_TIC_TOC */
 
 /* define macros as empty strings */
 #define TIC(TAG_NAME)
 #define TOC(TAG_NAME)
-#define SKP_TimerSave(FILE_NAME)
+#define silk_TimerSave(FILE_NAME)
 
-#endif /* SKP_TIC_TOC */
+#endif /* SILK_TIC_TOC */
 
 
 
-#if SKP_DEBUG
+#if SILK_DEBUG
 /************************************/
 /* write data to file for debugging */
 /************************************/
@@ -263,13 +263,13 @@ extern SKP_int64     SKP_Timer_depth[SKP_NUM_TIMERS_MAX];
 #if 0
 /* Ensure that everything is written to files when an assert breaks */
 #define DEBUG_STORE_DATA(FILE_NAME, DATA_PTR, N_BYTES) SAVE_DATA(FILE_NAME, DATA_PTR, N_BYTES)
-#define DEBUG_STORE_CLOSE_FILES
+#define SILK_DEBUG_STORE_CLOSE_FILES
 
 #else
 
 #define SKP_NUM_STORES_MAX                                  100
-extern FILE *SKP_debug_store_fp[ SKP_NUM_STORES_MAX ];
-extern int SKP_debug_store_count;
+extern FILE *silk_debug_store_fp[ SKP_NUM_STORES_MAX ];
+extern int silk_debug_store_count;
 
 /* Faster way of storing the data */
 #define DEBUG_STORE_DATA( FILE_NAME, DATA_PTR, N_BYTES ) {          \
@@ -277,35 +277,35 @@ extern int SKP_debug_store_count;
     static FILE **fp;                                               \
     if (init == 0) {                                                \
         init = 1;											        \
-        cnt = SKP_debug_store_count++;                              \
-        SKP_debug_store_fp[ cnt ] = fopen(#FILE_NAME, "wb");        \
+        cnt = silk_debug_store_count++;                             \
+        silk_debug_store_fp[ cnt ] = fopen(#FILE_NAME, "wb");       \
     }                                                               \
-    fwrite((DATA_PTR), (N_BYTES), 1, SKP_debug_store_fp[ cnt ]);    \
+    fwrite((DATA_PTR), (N_BYTES), 1, silk_debug_store_fp[ cnt ]);   \
 }
 
 /* Call this at the end of main() */
-#define DEBUG_STORE_CLOSE_FILES {                                   \
+#define SILK_DEBUG_STORE_CLOSE_FILES {                              \
     SKP_int i;                                                      \
-    for( i = 0; i < SKP_debug_store_count; i++ ) {                  \
-        fclose( SKP_debug_store_fp[ i ] );                          \
+    for( i = 0; i < silk_debug_store_count; i++ ) {                 \
+        fclose( silk_debug_store_fp[ i ] );                         \
     }                                                               \
 }
 #endif
 
 /* micro sec */
-#define SKP_GETTIME(void)       time = (SKP_int64) GetHighResolutionTime();     
+#define SKP_GETTIME(void)       time = (SKP_int64) silk_GetHighResolutionTime();     
 
-#else /* SKP_DEBUG */
+#else /* SILK_DEBUG */
 
 /* define macros as empty strings */
 #define DEBUG_STORE_DATA(FILE_NAME, DATA_PTR, N_BYTES)
 #define SAVE_DATA(FILE_NAME, DATA_PTR, N_BYTES)
-#define DEBUG_STORE_CLOSE_FILES
+#define SILK_DEBUG_STORE_CLOSE_FILES
 
-#endif /* SKP_DEBUG */
+#endif /* SILK_DEBUG */
 
 #ifdef  __cplusplus
 }
 #endif
 
-#endif /* _SKP_DEBUG_H_ */
+#endif /* _SILK_DEBUG_H_ */
diff --git a/silk/SKP_Silk_dec_API.c b/silk/silk_dec_API.c
similarity index 52%
rename from silk/SKP_Silk_dec_API.c
rename to silk/silk_dec_API.c
index 6340f2d8..652f8668 100644
--- a/silk/SKP_Silk_dec_API.c
+++ b/silk/silk_dec_API.c
@@ -28,50 +28,51 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
-#include "SKP_Silk_SDK_API.h"
-#include "SKP_Silk_main.h"
+#include "silk_API.h"
+#include "silk_main.h"
 
 /************************/
 /* Decoder Super Struct */
 /************************/
 typedef struct {
-    SKP_Silk_decoder_state          channel_state[ DECODER_NUM_CHANNELS ];
-    stereo_state                    sStereo;
-    SKP_int                         nChannels;
-} SKP_Silk_decoder;
+    silk_decoder_state          channel_state[ DECODER_NUM_CHANNELS ];
+    stereo_dec_state                sStereo;
+    SKP_int                         nChannelsAPI;
+    SKP_int                         nChannelsInternal;
+} silk_decoder;
 
 /*********************/
 /* Decoder functions */
 /*********************/
 
-SKP_int SKP_Silk_SDK_Get_Decoder_Size( SKP_int32 *decSizeBytes ) 
+SKP_int silk_Get_Decoder_Size( SKP_int32 *decSizeBytes ) 
 {
-    SKP_int ret = SKP_SILK_NO_ERROR;
+    SKP_int ret = SILK_NO_ERROR;
 
-    *decSizeBytes = sizeof( SKP_Silk_decoder );
+    *decSizeBytes = sizeof( silk_decoder );
 
     return ret;
 }
 
 /* Reset decoder state */
-SKP_int SKP_Silk_SDK_InitDecoder(
+SKP_int silk_InitDecoder(
     void* decState                                      /* I/O: State                                          */
 )
 {
-    SKP_int n, ret = SKP_SILK_NO_ERROR;
-    SKP_Silk_decoder_state *channel_state = ((SKP_Silk_decoder *)decState)->channel_state;
+    SKP_int n, ret = SILK_NO_ERROR;
+    silk_decoder_state *channel_state = ((silk_decoder *)decState)->channel_state;
 
     for( n = 0; n < DECODER_NUM_CHANNELS; n++ ) {
-        ret  = SKP_Silk_init_decoder( &channel_state[ n ] );
+        ret  = silk_init_decoder( &channel_state[ n ] );
     }
 
     return ret;
 }
 
 /* Decode a frame */
-SKP_int SKP_Silk_SDK_Decode(
+SKP_int silk_Decode(
     void*                               decState,       /* I/O: State                                           */
-    SKP_SILK_SDK_DecControlStruct*      decControl,     /* I/O: Control Structure                               */
+    silk_DecControlStruct*      decControl,     /* I/O: Control Structure                               */
     SKP_int                             lostFlag,       /* I:   0: no loss, 1 loss, 2 decode FEC                */
     SKP_int                             newPacketFlag,  /* I:   Indicates first decoder call for this packet    */
     ec_dec                              *psRangeDec,    /* I/O  Compressor data structure                       */
@@ -79,20 +80,20 @@ SKP_int SKP_Silk_SDK_Decode(
     SKP_int32                           *nSamplesOut    /* O:   Number of samples decoded                       */
 )
 {
-    SKP_int   i, n, prev_fs_kHz, doResample, flags, nFlags, ret = SKP_SILK_NO_ERROR;
+    SKP_int   i, n, prev_fs_kHz, decode_only_middle = 0, ret = SILK_NO_ERROR;
     SKP_int32 nSamplesOutDec, LBRR_symbol;
-    SKP_int16 samplesOut1_tmp[ 2 * MAX_FS_KHZ * MAX_FRAME_LENGTH_MS ];
+    SKP_int16 samplesOut1_tmp[ 2 ][ MAX_FS_KHZ * MAX_FRAME_LENGTH_MS + 2 ];
     SKP_int16 samplesOut2_tmp[ MAX_API_FS_KHZ * MAX_FRAME_LENGTH_MS ];
-    SKP_int   MS_pred_Q14[ 2 ] = { 0 };
-    SKP_int16 *dec_out_ptr, *resample_out_ptr;
-    SKP_Silk_decoder *psDec = ( SKP_Silk_decoder * )decState;
-    SKP_Silk_decoder_state *channel_state = psDec->channel_state;
+    SKP_int   MS_pred_Q13[ 2 ] = { 0 };
+    SKP_int16 *resample_out_ptr;
+    silk_decoder *psDec = ( silk_decoder * )decState;
+    silk_decoder_state *channel_state = psDec->channel_state;
 
     /**********************************/
     /* Test if first frame in payload */
     /**********************************/
     if( newPacketFlag ) {
-        for( n = 0; n < decControl->nChannels; n++ ) {
+        for( n = 0; n < decControl->nChannelsInternal; n++ ) {
             channel_state[ n ].nFramesDecoded = 0;  /* Used to count frames in packet */
         }
     }
@@ -100,14 +101,15 @@ SKP_int SKP_Silk_SDK_Decode(
     /* Save previous sample frequency */
     prev_fs_kHz = channel_state[ 0 ].fs_kHz;
 
-    if( decControl->nChannels > psDec->nChannels ) {
-        /* Mono -> Stereo transition: init state of second channel and stereo state */
-        SKP_memset( &psDec->sStereo, 0, sizeof( psDec->sStereo ) );
-        ret += SKP_Silk_init_decoder( &channel_state[ 1 ] );
+    /* If Mono -> Stereo transition in bitstream: init state of second channel */
+    if( decControl->nChannelsInternal > psDec->nChannelsInternal ) {
+        ret += silk_init_decoder( &channel_state[ 1 ] );
+        if( psDec->nChannelsAPI == 2 ) {
+            SKP_memcpy( &channel_state[ 1 ].resampler_state, &channel_state[ 0 ].resampler_state, sizeof( silk_resampler_state_struct ) );
+        }
     }
-    psDec->nChannels = decControl->nChannels;
 
-    for( n = 0; n < decControl->nChannels; n++ ) {
+    for( n = 0; n < decControl->nChannelsInternal; n++ ) {
         if( channel_state[ n ].nFramesDecoded == 0 ) {
             SKP_int fs_kHz_dec;
             if( decControl->payloadSize_ms == 10 ) {
@@ -124,60 +126,54 @@ SKP_int SKP_Silk_SDK_Decode(
                 channel_state[ n ].nb_subfr = 4;
             } else {
                 SKP_assert( 0 );
-                return SKP_SILK_DEC_INVALID_FRAME_SIZE;
+                return SILK_DEC_INVALID_FRAME_SIZE;
             } 
             fs_kHz_dec = ( decControl->internalSampleRate >> 10 ) + 1;
             if( fs_kHz_dec != 8 && fs_kHz_dec != 12 && fs_kHz_dec != 16 ) {
                 SKP_assert( 0 );
-                return SKP_SILK_DEC_INVALID_SAMPLING_FREQUENCY;
+                return SILK_DEC_INVALID_SAMPLING_FREQUENCY;
             }
-            SKP_Silk_decoder_set_fs( &channel_state[ n ], fs_kHz_dec );
+            silk_decoder_set_fs( &channel_state[ n ], fs_kHz_dec );
         }
     }
-    
+
+    /* Initialize resampler when switching internal or external sampling frequency */
+    if( prev_fs_kHz != channel_state[ 0 ].fs_kHz || channel_state[ 0 ].prev_API_sampleRate != decControl->API_sampleRate ) {
+        ret = silk_resampler_init( &channel_state[ 0 ].resampler_state, SKP_SMULBB( channel_state[ 0 ].fs_kHz, 1000 ), decControl->API_sampleRate );
+        if( decControl->nChannelsAPI == 2 && decControl->nChannelsInternal == 2 ) {
+            SKP_memcpy( &channel_state[ 1 ].resampler_state, &channel_state[ 0 ].resampler_state, sizeof( silk_resampler_state_struct ) );
+        }
+    }
+    channel_state[ 0 ].prev_API_sampleRate = decControl->API_sampleRate;
+    if( decControl->nChannelsAPI == 2 && decControl->nChannelsInternal == 2 && ( psDec->nChannelsAPI == 1 || psDec->nChannelsInternal == 1 ) ) {
+        SKP_memset( psDec->sStereo.pred_prev_Q13, 0, sizeof( psDec->sStereo.pred_prev_Q13 ) );
+        SKP_memset( psDec->sStereo.sSide, 0, sizeof( psDec->sStereo.sSide ) );
+    }
+    psDec->nChannelsAPI      = decControl->nChannelsAPI;
+    psDec->nChannelsInternal = decControl->nChannelsInternal;
+
     if( decControl->API_sampleRate > MAX_API_FS_KHZ * 1000 || decControl->API_sampleRate < 8000 ) {
-        ret = SKP_SILK_DEC_INVALID_SAMPLING_FREQUENCY;
+        ret = SILK_DEC_INVALID_SAMPLING_FREQUENCY;
         return( ret );
     }
 
-    doResample = SKP_SMULBB( channel_state[ 0 ].fs_kHz, 1000 ) != decControl->API_sampleRate;
-
-    /* Set up pointers to temp buffers */
-    if( doResample || decControl->nChannels == 2 ) { 
-        dec_out_ptr = samplesOut1_tmp;
-    } else {
-        dec_out_ptr = samplesOut;
-    }
-    if( decControl->nChannels == 2 ) {
-        resample_out_ptr = samplesOut2_tmp;
-    } else {
-        resample_out_ptr = samplesOut;
-    }
-
     if( lostFlag != FLAG_PACKET_LOST && channel_state[ 0 ].nFramesDecoded == 0 ) {
         /* First decoder call for this payload */
-        nFlags = SKP_SMULBB( decControl->nChannels, channel_state[ 0 ].nFramesPerPacket + 1 );
-        flags = SKP_RSHIFT( psRangeDec->buf[ 0 ], 8 - nFlags ) & ( SKP_LSHIFT( 1, nFlags ) - 1 );
-        for( i = 0; i < nFlags; i++ ) {
-            ec_dec_icdf( psRangeDec, SKP_Silk_uniform2_iCDF, 8 );
-        }
         /* Decode VAD flags and LBRR flag */
-        for( n = decControl->nChannels - 1; n >= 0; n-- ) {
-            channel_state[ n ].LBRR_flag = flags & 1;
-            flags = SKP_RSHIFT( flags, 1 );
-            for( i = channel_state[ n ].nFramesPerPacket - 1; i >= 0 ; i-- ) {
-                channel_state[ n ].VAD_flags[ i ] = flags & 1;
-                flags = SKP_RSHIFT( flags, 1 );
+        for( n = 0; n < decControl->nChannelsInternal; n++ ) {
+            for( i = 0; i < channel_state[ n ].nFramesPerPacket; i++ ) {
+                channel_state[ n ].VAD_flags[ i ] = ec_dec_bit_logp(psRangeDec, 1);
             }
-        }       
+            channel_state[ n ].LBRR_flag = ec_dec_bit_logp(psRangeDec, 1);
+        }        
         /* Decode LBRR flags */
-        for( n = 0; n < decControl->nChannels; n++ ) {
+        for( n = 0; n < decControl->nChannelsInternal; n++ ) {
             SKP_memset( channel_state[ n ].LBRR_flags, 0, sizeof( channel_state[ n ].LBRR_flags ) );
             if( channel_state[ n ].LBRR_flag ) {
                 if( channel_state[ n ].nFramesPerPacket == 1 ) {
                     channel_state[ n ].LBRR_flags[ 0 ] = 1;
                 } else {
-                    LBRR_symbol = ec_dec_icdf( psRangeDec, SKP_Silk_LBRR_flags_iCDF_ptr[ channel_state[ n ].nFramesPerPacket - 2 ], 8 ) + 1;
+                    LBRR_symbol = ec_dec_icdf( psRangeDec, silk_LBRR_flags_iCDF_ptr[ channel_state[ n ].nFramesPerPacket - 2 ], 8 ) + 1;
                     for( i = 0; i < channel_state[ n ].nFramesPerPacket; i++ ) {
                         channel_state[ n ].LBRR_flags[ i ] = SKP_RSHIFT( LBRR_symbol, i ) & 1;
                     }
@@ -188,11 +184,14 @@ SKP_int SKP_Silk_SDK_Decode(
         if( lostFlag == FLAG_DECODE_NORMAL ) {
             /* Regular decoding: skip all LBRR data */
             for( i = 0; i < channel_state[ 0 ].nFramesPerPacket; i++ ) {
-                for( n = 0; n < decControl->nChannels; n++ ) {
+                for( n = 0; n < decControl->nChannelsInternal; n++ ) {
                     if( channel_state[ n ].LBRR_flags[ i ] ) {
                         SKP_int pulses[ MAX_FRAME_LENGTH ];
-                        SKP_Silk_decode_indices( &channel_state[ n ], psRangeDec, i, 1 );
-                        SKP_Silk_decode_pulses( psRangeDec, pulses, channel_state[ n ].indices.signalType, 
+                        if( decControl->nChannelsInternal == 2 && n == 0 ) {
+                            silk_stereo_decode_pred( psRangeDec, &decode_only_middle, MS_pred_Q13 );
+                        }
+                        silk_decode_indices( &channel_state[ n ], psRangeDec, i, 1 );
+                        silk_decode_pulses( psRangeDec, pulses, channel_state[ n ].indices.signalType, 
                             channel_state[ n ].indices.quantOffsetType, channel_state[ n ].frame_length );
                     }
                 }
@@ -201,67 +200,75 @@ SKP_int SKP_Silk_SDK_Decode(
     }
 
     /* Get MS predictor index */
-    if( decControl->nChannels == 2 ) {
-        SKP_Silk_stereo_decode_pred( psRangeDec, MS_pred_Q14 );
+    if( decControl->nChannelsInternal == 2 ) {
+        if(   lostFlag == FLAG_DECODE_NORMAL || 
+            ( lostFlag == FLAG_DECODE_LBRR && channel_state[ 0 ].LBRR_flags[ channel_state[ 0 ].nFramesDecoded ] == 1 ) ) 
+        {
+            silk_stereo_decode_pred( psRangeDec, &decode_only_middle, MS_pred_Q13 );
+        } else {
+            SKP_memcpy( MS_pred_Q13, &psDec->sStereo.pred_prev_Q13, sizeof( MS_pred_Q13 ) );
+        }
     }
 
     /* Call decoder for one frame */
-    for( n = 0; n < decControl->nChannels; n++ ) {
-        ret += SKP_Silk_decode_frame( &channel_state[ n ], psRangeDec, &dec_out_ptr[ n * MAX_FS_KHZ * MAX_FRAME_LENGTH_MS ], &nSamplesOutDec, lostFlag );
+    for( n = 0; n < decControl->nChannelsInternal; n++ ) {
+        if( n == 0 || decode_only_middle == 0 ) {
+            ret += silk_decode_frame( &channel_state[ n ], psRangeDec, &samplesOut1_tmp[ n ][ 2 ], &nSamplesOutDec, lostFlag );
+        } else {
+            SKP_memset( &samplesOut1_tmp[ n ][ 2 ], 0, nSamplesOutDec * sizeof( SKP_int16 ) );
+        }
     }
 
-    /* Convert Mid/Side to Left/Right */
-    if( decControl->nChannels == 2 ) {
-        SKP_Silk_stereo_MS_to_LR( &psDec->sStereo, dec_out_ptr, &dec_out_ptr[ MAX_FS_KHZ * MAX_FRAME_LENGTH_MS ], MS_pred_Q14, channel_state[ 0 ].fs_kHz, nSamplesOutDec );
+    if( decControl->nChannelsAPI == 2 && decControl->nChannelsInternal == 2 ) {
+        /* Convert Mid/Side to Left/Right */
+        silk_stereo_MS_to_LR( &psDec->sStereo, samplesOut1_tmp[ 0 ], samplesOut1_tmp[ 1 ], MS_pred_Q13, channel_state[ 0 ].fs_kHz, nSamplesOutDec );
+    } else {
+        /* Buffering */
+        SKP_memcpy( samplesOut1_tmp[ 0 ], psDec->sStereo.sMid, 2 * sizeof( SKP_int16 ) );
+        SKP_memcpy( psDec->sStereo.sMid, &samplesOut1_tmp[ 0 ][ nSamplesOutDec ], 2 * sizeof( SKP_int16 ) );
     }
 
     /* Number of output samples */
-    if( doResample ) {
-        *nSamplesOut = SKP_DIV32( nSamplesOutDec * decControl->API_sampleRate, SKP_SMULBB( channel_state[ 0 ].fs_kHz, 1000 ) );
+    *nSamplesOut = SKP_DIV32( nSamplesOutDec * decControl->API_sampleRate, SKP_SMULBB( channel_state[ 0 ].fs_kHz, 1000 ) );
+
+    /* Set up pointers to temp buffers */
+    if( decControl->nChannelsAPI == 2 ) {
+        resample_out_ptr = samplesOut2_tmp;
     } else {
-        *nSamplesOut = nSamplesOutDec;
+        resample_out_ptr = samplesOut;
     }
 
-    for( n = 0; n < decControl->nChannels; n++ ) {
-        /* Resample if needed */
-        if( doResample ) {
-            /* Initialize resampler when switching internal or external sampling frequency */
-            if( prev_fs_kHz != channel_state[ n ].fs_kHz || channel_state[ n ].prev_API_sampleRate != decControl->API_sampleRate ) {
-                ret = SKP_Silk_resampler_init( &channel_state[ n ].resampler_state, SKP_SMULBB( channel_state[ n ].fs_kHz, 1000 ), decControl->API_sampleRate );
-            }
+    for( n = 0; n < SKP_min( decControl->nChannelsAPI, decControl->nChannelsInternal ); n++ ) {
+        /* Resample decoded signal to API_sampleRate */
+        ret += silk_resampler( &channel_state[ n ].resampler_state, resample_out_ptr, &samplesOut1_tmp[ n ][ 1 ], nSamplesOutDec );
 
-            /* Resample the output to API_sampleRate */
-            ret += SKP_Silk_resampler( &channel_state[ n ].resampler_state, resample_out_ptr, &dec_out_ptr[ n * MAX_FS_KHZ * MAX_FRAME_LENGTH_MS ], nSamplesOutDec );
-        } else {
-            resample_out_ptr = &dec_out_ptr[ n * MAX_FS_KHZ * MAX_FRAME_LENGTH_MS ];
-        }
-
-        /* Interleave if needed */
-        if( decControl->nChannels == 2 ) {
+        /* Interleave if stereo output and stereo stream */
+        if( decControl->nChannelsAPI == 2 && decControl->nChannelsInternal == 2 ) {
             for( i = 0; i < *nSamplesOut; i++ ) {
                 samplesOut[ n + 2 * i ] = resample_out_ptr[ i ];
             }
         }
-        
-        channel_state[ n ].prev_API_sampleRate = decControl->API_sampleRate;
     }
 
-    /* Copy parameters to control stucture */
-    decControl->frameSize        = ( SKP_int )*nSamplesOut;
-    decControl->framesPerPayload = ( SKP_int )channel_state[ n ].nFramesPerPacket;
+    /* Create two channel output from mono stream */
+    if( decControl->nChannelsAPI == 2 && decControl->nChannelsInternal == 1 ) {
+        for( i = 0; i < *nSamplesOut; i++ ) {
+            samplesOut[ 0 + 2 * i ] = samplesOut[ 1 + 2 * i ] = resample_out_ptr[ i ];
+        }
+    }
 
     return ret;
 }
 
 /* Getting table of contents for a packet */
-SKP_int SKP_Silk_SDK_get_TOC(
+SKP_int silk_get_TOC(
     const SKP_uint8                     *payload,           /* I    Payload data                                */
     const SKP_int                       nBytesIn,           /* I:   Number of input bytes                       */
     const SKP_int                       nFramesPerPayload,  /* I:   Number of SILK frames per payload           */
-    SKP_Silk_TOC_struct                 *Silk_TOC           /* O:   Type of content                             */
+    silk_TOC_struct                 *Silk_TOC           /* O:   Type of content                             */
 )
 {
-    SKP_int i, flags, ret = SKP_SILK_NO_ERROR;
+    SKP_int i, flags, ret = SILK_NO_ERROR;
 
     if( nBytesIn < 1 ) {
         return -1;
diff --git a/silk/SKP_Silk_decode_core.c b/silk/silk_decode_core.c
similarity index 91%
rename from silk/SKP_Silk_decode_core.c
rename to silk/silk_decode_core.c
index 3c795f56..f2607480 100644
--- a/silk/SKP_Silk_decode_core.c
+++ b/silk/silk_decode_core.c
@@ -25,14 +25,14 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 /**********************************************************/
 /* Core decoder. Performs inverse NSQ operation LTP + LPC */
 /**********************************************************/
-void SKP_Silk_decode_core(
-    SKP_Silk_decoder_state      *psDec,                             /* I/O  Decoder state               */
-    SKP_Silk_decoder_control    *psDecCtrl,                         /* I    Decoder control             */
+void silk_decode_core(
+    silk_decoder_state      *psDec,                             /* I/O  Decoder state               */
+    silk_decoder_control    *psDecCtrl,                         /* I    Decoder control             */
     SKP_int16                   xq[],                               /* O    Decoded speech              */
     const SKP_int               pulses[ MAX_FRAME_LENGTH ]          /* I    Pulse signal                */
 )
@@ -47,7 +47,7 @@ void SKP_Silk_decode_core(
 
     SKP_assert( psDec->prev_inv_gain_Q16 != 0 );
     
-    offset_Q10 = SKP_Silk_Quantization_Offsets_Q10[ psDec->indices.signalType >> 1 ][ psDec->indices.quantOffsetType ];
+    offset_Q10 = silk_Quantization_Offsets_Q10[ psDec->indices.signalType >> 1 ][ psDec->indices.quantOffsetType ];
 
     if( psDec->indices.NLSFInterpCoef_Q2 < 1 << 2 ) {
         NLSF_interpolation_flag = 1;
@@ -90,13 +90,13 @@ void SKP_Silk_decode_core(
         Gain_Q16     = psDecCtrl->Gains_Q16[ k ];
         signalType   = psDec->indices.signalType;
 
-        inv_gain_Q16 = SKP_INVERSE32_varQ( SKP_max( Gain_Q16, 1 ), 32 );
+        inv_gain_Q16 = silk_INVERSE32_varQ( SKP_max( Gain_Q16, 1 ), 32 );
         inv_gain_Q16 = SKP_min( inv_gain_Q16, SKP_int16_MAX );
 
         /* Calculate Gain adjustment factor */
         gain_adj_Q16 = 1 << 16;
         if( inv_gain_Q16 != psDec->prev_inv_gain_Q16 ) {
-            gain_adj_Q16 =  SKP_DIV32_varQ( inv_gain_Q16, psDec->prev_inv_gain_Q16, 16 );
+            gain_adj_Q16 =  silk_DIV32_varQ( inv_gain_Q16, psDec->prev_inv_gain_Q16, 16 );
 
             /* Scale short term state */
             for( i = 0; i < MAX_LPC_ORDER; i++ ) {
@@ -113,7 +113,7 @@ void SKP_Silk_decode_core(
             psDec->indices.signalType != TYPE_VOICED && k < MAX_NB_SUBFR/2 ) {
             
             SKP_memset( B_Q14, 0, LTP_ORDER * sizeof( SKP_int16 ) );
-            B_Q14[ LTP_ORDER/2 ] = SKP_FIX_CONST( 0.25, 14 );
+            B_Q14[ LTP_ORDER/2 ] = SILK_FIX_CONST( 0.25, 14 );
         
             signalType = TYPE_VOICED;
             psDecCtrl->pitchL[ k ] = psDec->lagPrev;
@@ -129,7 +129,7 @@ void SKP_Silk_decode_core(
                 start_idx = psDec->ltp_mem_length - lag - psDec->LPC_order - LTP_ORDER / 2;
                 SKP_assert( start_idx > 0 );
 
-                SKP_Silk_LPC_analysis_filter( &sLTP[ start_idx ], &psDec->outBuf[ start_idx + k * psDec->subfr_length ], 
+                silk_LPC_analysis_filter( &sLTP[ start_idx ], &psDec->outBuf[ start_idx + k * psDec->subfr_length ], 
                     A_Q12, psDec->ltp_mem_length - start_idx, psDec->LPC_order );
 
                 /* After rewhitening the LTP state is unscaled */
diff --git a/silk/SKP_Silk_decode_frame.c b/silk/silk_decode_frame.c
similarity index 85%
rename from silk/SKP_Silk_decode_frame.c
rename to silk/silk_decode_frame.c
index 0db27f81..3d508db9 100644
--- a/silk/SKP_Silk_decode_frame.c
+++ b/silk/silk_decode_frame.c
@@ -25,21 +25,21 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
-#include "SKP_Silk_PLC.h"
+#include "silk_main.h"
+#include "silk_PLC.h"
 
 /****************/
 /* Decode frame */
 /****************/
-SKP_int SKP_Silk_decode_frame(
-    SKP_Silk_decoder_state      *psDec,             /* I/O  Pointer to Silk decoder state               */
+SKP_int silk_decode_frame(
+    silk_decoder_state      *psDec,             /* I/O  Pointer to Silk decoder state               */
     ec_dec                      *psRangeDec,        /* I/O  Compressor data structure                   */
     SKP_int16                   pOut[],             /* O    Pointer to output speech frame              */
     SKP_int32                   *pN,                /* O    Pointer to size of output frame             */
     SKP_int                     lostFlag            /* I    0: no loss, 1 loss, 2 decode fec            */
 )
 {
-    SKP_Silk_decoder_control sDecCtrl;
+    silk_decoder_control sDecCtrl;
     SKP_int         L, mv_len, ret = 0;
     SKP_int         pulses[ MAX_FRAME_LENGTH ];
 
@@ -58,14 +58,14 @@ TIC(DECODE_FRAME)
         /* Decode quantization indices of side info  */
         /*********************************************/
 TIC(decode_indices)
-        SKP_Silk_decode_indices( psDec, psRangeDec, psDec->nFramesDecoded, lostFlag );
+        silk_decode_indices( psDec, psRangeDec, psDec->nFramesDecoded, lostFlag );
 TOC(decode_indices)
 
         /*********************************************/
         /* Decode quantization indices of excitation */
         /*********************************************/
 TIC(decode_pulses)
-        SKP_Silk_decode_pulses( psRangeDec, pulses, psDec->indices.signalType, 
+        silk_decode_pulses( psRangeDec, pulses, psDec->indices.signalType, 
                 psDec->indices.quantOffsetType, psDec->frame_length );
 TOC(decode_pulses)
 
@@ -73,7 +73,7 @@ TOC(decode_pulses)
         /* Decode parameters and pulse signal       */
         /********************************************/
 TIC(decode_params)
-        SKP_Silk_decode_parameters( psDec, &sDecCtrl );
+        silk_decode_parameters( psDec, &sDecCtrl );
 TOC(decode_params)
 
         /* Update length. Sampling frequency may have changed */
@@ -83,13 +83,13 @@ TOC(decode_params)
         /* Run inverse NSQ                                      */
         /********************************************************/
 TIC(decode_core)
-        SKP_Silk_decode_core( psDec, &sDecCtrl, pOut, pulses );
+        silk_decode_core( psDec, &sDecCtrl, pOut, pulses );
 TOC(decode_core)
 
         /********************************************************/
         /* Update PLC state                                     */
         /********************************************************/
-        SKP_Silk_PLC( psDec, &sDecCtrl, pOut, L, 0 );
+        silk_PLC( psDec, &sDecCtrl, pOut, L, 0 );
 
         psDec->lossCnt = 0;
         psDec->prevSignalType = psDec->indices.signalType;
@@ -99,7 +99,7 @@ TOC(decode_core)
         psDec->first_frame_after_reset = 0;
     } else {
         /* Handle packet loss by extrapolation */
-        SKP_Silk_PLC( psDec, &sDecCtrl, pOut, L, 1 );
+        silk_PLC( psDec, &sDecCtrl, pOut, L, 1 );
     }
 
     /*************************/
@@ -113,12 +113,12 @@ TOC(decode_core)
     /****************************************************************/
     /* Ensure smooth connection of extrapolated and good frames     */
     /****************************************************************/
-    SKP_Silk_PLC_glue_frames( psDec, &sDecCtrl, pOut, L );
+    silk_PLC_glue_frames( psDec, &sDecCtrl, pOut, L );
 
     /************************************************/
     /* Comfort noise generation / estimation        */
     /************************************************/
-    SKP_Silk_CNG( psDec, &sDecCtrl, pOut, L );
+    silk_CNG( psDec, &sDecCtrl, pOut, L );
 
     /* Update some decoder state variables */
     psDec->lagPrev = sDecCtrl.pitchL[ psDec->nb_subfr - 1 ];
diff --git a/silk/SKP_Silk_decode_indices.c b/silk/silk_decode_indices.c
similarity index 82%
rename from silk/SKP_Silk_decode_indices.c
rename to silk/silk_decode_indices.c
index 9864eaf5..0eebdbd3 100644
--- a/silk/SKP_Silk_decode_indices.c
+++ b/silk/silk_decode_indices.c
@@ -25,11 +25,11 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 /* Decode side-information parameters from payload */
-void SKP_Silk_decode_indices(
-    SKP_Silk_decoder_state      *psDec,             /* I/O  State                                       */
+void silk_decode_indices(
+    silk_decoder_state      *psDec,             /* I/O  State                                       */
     ec_dec                      *psRangeDec,        /* I/O  Compressor data structure                   */
     SKP_int                     FrameIndex,         /* I    Frame number                                */
     SKP_int                     decode_LBRR         /* I    Flag indicating LBRR data is being decoded  */
@@ -51,9 +51,9 @@ void SKP_Silk_decode_indices(
     /* Decode signal type and quantizer offset */
     /*******************************************/
     if( decode_LBRR || psDec->VAD_flags[ FrameIndex ] ) {
-        Ix = ec_dec_icdf( psRangeDec, SKP_Silk_type_offset_VAD_iCDF, 8 ) + 2;
+        Ix = ec_dec_icdf( psRangeDec, silk_type_offset_VAD_iCDF, 8 ) + 2;
     } else {
-        Ix = ec_dec_icdf( psRangeDec, SKP_Silk_type_offset_no_VAD_iCDF, 8 );
+        Ix = ec_dec_icdf( psRangeDec, silk_type_offset_no_VAD_iCDF, 8 );
     }
     psDec->indices.signalType      = (SKP_int8)SKP_RSHIFT( Ix, 1 );
     psDec->indices.quantOffsetType = (SKP_int8)( Ix & 1 );
@@ -64,37 +64,37 @@ void SKP_Silk_decode_indices(
     /* First subframe */    
     if( condCoding ) {
         /* Conditional coding */
-        psDec->indices.GainsIndices[ 0 ] = (SKP_int8)ec_dec_icdf( psRangeDec, SKP_Silk_delta_gain_iCDF, 8 );
+        psDec->indices.GainsIndices[ 0 ] = (SKP_int8)ec_dec_icdf( psRangeDec, silk_delta_gain_iCDF, 8 );
     } else {
         /* Independent coding, in two stages: MSB bits followed by 3 LSBs */
-        psDec->indices.GainsIndices[ 0 ]  = (SKP_int8)SKP_LSHIFT( ec_dec_icdf( psRangeDec, SKP_Silk_gain_iCDF[ psDec->indices.signalType ], 8 ), 3 );
-        psDec->indices.GainsIndices[ 0 ] += (SKP_int8)ec_dec_icdf( psRangeDec, SKP_Silk_uniform8_iCDF, 8 );
+        psDec->indices.GainsIndices[ 0 ]  = (SKP_int8)SKP_LSHIFT( ec_dec_icdf( psRangeDec, silk_gain_iCDF[ psDec->indices.signalType ], 8 ), 3 );
+        psDec->indices.GainsIndices[ 0 ] += (SKP_int8)ec_dec_icdf( psRangeDec, silk_uniform8_iCDF, 8 );
     }
 
     /* Remaining subframes */
     for( i = 1; i < psDec->nb_subfr; i++ ) {
-        psDec->indices.GainsIndices[ i ] = (SKP_int8)ec_dec_icdf( psRangeDec, SKP_Silk_delta_gain_iCDF, 8 );
+        psDec->indices.GainsIndices[ i ] = (SKP_int8)ec_dec_icdf( psRangeDec, silk_delta_gain_iCDF, 8 );
     }
         
     /**********************/
     /* Decode LSF Indices */
     /**********************/
     psDec->indices.NLSFIndices[ 0 ] = (SKP_int8)ec_dec_icdf( psRangeDec, &psDec->psNLSF_CB->CB1_iCDF[ ( psDec->indices.signalType >> 1 ) * psDec->psNLSF_CB->nVectors ], 8 );
-    SKP_Silk_NLSF_unpack( ec_ix, pred_Q8, psDec->psNLSF_CB, psDec->indices.NLSFIndices[ 0 ] );
+    silk_NLSF_unpack( ec_ix, pred_Q8, psDec->psNLSF_CB, psDec->indices.NLSFIndices[ 0 ] );
     SKP_assert( psDec->psNLSF_CB->order == psDec->LPC_order );
     for( i = 0; i < psDec->psNLSF_CB->order; i++ ) {
         Ix = ec_dec_icdf( psRangeDec, &psDec->psNLSF_CB->ec_iCDF[ ec_ix[ i ] ], 8 );
         if( Ix == 0 ) {
-            Ix -= ec_dec_icdf( psRangeDec, SKP_Silk_NLSF_EXT_iCDF, 8 );
+            Ix -= ec_dec_icdf( psRangeDec, silk_NLSF_EXT_iCDF, 8 );
         } else if( Ix == 2 * NLSF_QUANT_MAX_AMPLITUDE ) {
-            Ix += ec_dec_icdf( psRangeDec, SKP_Silk_NLSF_EXT_iCDF, 8 );
+            Ix += ec_dec_icdf( psRangeDec, silk_NLSF_EXT_iCDF, 8 );
         }
         psDec->indices.NLSFIndices[ i+1 ] = (SKP_int8)( Ix - NLSF_QUANT_MAX_AMPLITUDE );
     }
 
     /* Decode LSF interpolation factor */
     if( psDec->nb_subfr == MAX_NB_SUBFR ) {
-        psDec->indices.NLSFInterpCoef_Q2 = (SKP_int8)ec_dec_icdf( psRangeDec, SKP_Silk_NLSF_interpolation_factor_iCDF, 8 );
+        psDec->indices.NLSFInterpCoef_Q2 = (SKP_int8)ec_dec_icdf( psRangeDec, silk_NLSF_interpolation_factor_iCDF, 8 );
     } else {
         psDec->indices.NLSFInterpCoef_Q2 = 4;
     }
@@ -108,7 +108,7 @@ void SKP_Silk_decode_indices(
         decode_absolute_lagIndex = 1;
         if( condCoding && psDec->ec_prevSignalType == TYPE_VOICED ) {
             /* Decode Delta index */
-            delta_lagIndex = (SKP_int16)ec_dec_icdf( psRangeDec, SKP_Silk_pitch_delta_iCDF, 8 );
+            delta_lagIndex = (SKP_int16)ec_dec_icdf( psRangeDec, silk_pitch_delta_iCDF, 8 );
             if( delta_lagIndex > 0 ) {
                 delta_lagIndex = delta_lagIndex - 9;
                 psDec->indices.lagIndex = (SKP_int16)( psDec->ec_prevLagIndex + delta_lagIndex );
@@ -117,7 +117,7 @@ void SKP_Silk_decode_indices(
         }
         if( decode_absolute_lagIndex ) {
             /* Absolute decoding */
-            psDec->indices.lagIndex  = (SKP_int16)ec_dec_icdf( psRangeDec, SKP_Silk_pitch_lag_iCDF, 8 ) * SKP_RSHIFT( psDec->fs_kHz, 1 );
+            psDec->indices.lagIndex  = (SKP_int16)ec_dec_icdf( psRangeDec, silk_pitch_lag_iCDF, 8 ) * SKP_RSHIFT( psDec->fs_kHz, 1 );
             psDec->indices.lagIndex += (SKP_int16)ec_dec_icdf( psRangeDec, psDec->pitch_lag_low_bits_iCDF, 8 );
         }
         psDec->ec_prevLagIndex = psDec->indices.lagIndex;
@@ -129,17 +129,17 @@ void SKP_Silk_decode_indices(
         /* Decode LTP gains */
         /********************/
         /* Decode PERIndex value */
-        psDec->indices.PERIndex = (SKP_int8)ec_dec_icdf( psRangeDec, SKP_Silk_LTP_per_index_iCDF, 8 );
+        psDec->indices.PERIndex = (SKP_int8)ec_dec_icdf( psRangeDec, silk_LTP_per_index_iCDF, 8 );
 
         for( k = 0; k < psDec->nb_subfr; k++ ) {
-            psDec->indices.LTPIndex[ k ] = (SKP_int8)ec_dec_icdf( psRangeDec, SKP_Silk_LTP_gain_iCDF_ptrs[ psDec->indices.PERIndex ], 8 );
+            psDec->indices.LTPIndex[ k ] = (SKP_int8)ec_dec_icdf( psRangeDec, silk_LTP_gain_iCDF_ptrs[ psDec->indices.PERIndex ], 8 );
         }
 
         /**********************/
         /* Decode LTP scaling */
         /**********************/
         if( !condCoding ) {
-            psDec->indices.LTP_scaleIndex = (SKP_int8)ec_dec_icdf( psRangeDec, SKP_Silk_LTPscale_iCDF, 8 );
+            psDec->indices.LTP_scaleIndex = (SKP_int8)ec_dec_icdf( psRangeDec, silk_LTPscale_iCDF, 8 );
         } else {
             psDec->indices.LTP_scaleIndex = 0;
         }
@@ -149,5 +149,5 @@ void SKP_Silk_decode_indices(
     /***************/
     /* Decode seed */
     /***************/
-    psDec->indices.Seed = (SKP_int8)ec_dec_icdf( psRangeDec, SKP_Silk_uniform4_iCDF, 8 );
+    psDec->indices.Seed = (SKP_int8)ec_dec_icdf( psRangeDec, silk_uniform4_iCDF, 8 );
 }
diff --git a/silk/SKP_Silk_decode_parameters.c b/silk/silk_decode_parameters.c
similarity index 77%
rename from silk/SKP_Silk_decode_parameters.c
rename to silk/silk_decode_parameters.c
index 5ec8145b..1268f46a 100644
--- a/silk/SKP_Silk_decode_parameters.c
+++ b/silk/silk_decode_parameters.c
@@ -25,12 +25,12 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 /* Decode parameters from payload */
-void SKP_Silk_decode_parameters(
-    SKP_Silk_decoder_state      *psDec,                             /* I/O  State                                    */
-    SKP_Silk_decoder_control    *psDecCtrl                          /* I/O  Decoder control                          */
+void silk_decode_parameters(
+    silk_decoder_state      *psDec,                             /* I/O  State                                    */
+    silk_decoder_control    *psDecCtrl                          /* I/O  Decoder control                          */
 )
 {
     SKP_int   i, k, Ix;
@@ -38,16 +38,16 @@ void SKP_Silk_decode_parameters(
     const SKP_int8 *cbk_ptr_Q7;
     
     /* Dequant Gains */
-    SKP_Silk_gains_dequant( psDecCtrl->Gains_Q16, psDec->indices.GainsIndices, 
+    silk_gains_dequant( psDecCtrl->Gains_Q16, psDec->indices.GainsIndices, 
         &psDec->LastGainIndex, psDec->nFramesDecoded, psDec->nb_subfr );
 
     /****************/
     /* Decode NLSFs */
     /****************/
-    SKP_Silk_NLSF_decode( pNLSF_Q15, psDec->indices.NLSFIndices, psDec->psNLSF_CB );
+    silk_NLSF_decode( pNLSF_Q15, psDec->indices.NLSFIndices, psDec->psNLSF_CB );
 
     /* Convert NLSF parameters to AR prediction filter coefficients */
-    SKP_Silk_NLSF2A_stable( psDecCtrl->PredCoef_Q12[ 1 ], pNLSF_Q15, psDec->LPC_order );
+    silk_NLSF2A_stable( psDecCtrl->PredCoef_Q12[ 1 ], pNLSF_Q15, psDec->LPC_order );
     
     /* If just reset, e.g., because internal Fs changed, do not allow interpolation */
     /* improves the case of packet loss in the first frame after a switch           */
@@ -64,7 +64,7 @@ void SKP_Silk_decode_parameters(
         }
 
         /* Convert NLSF parameters to AR prediction filter coefficients */
-        SKP_Silk_NLSF2A_stable( psDecCtrl->PredCoef_Q12[ 0 ], pNLSF0_Q15, psDec->LPC_order );
+        silk_NLSF2A_stable( psDecCtrl->PredCoef_Q12[ 0 ], pNLSF0_Q15, psDec->LPC_order );
     } else {
         /* Copy LPC coefficients for first half from second half */
         SKP_memcpy( psDecCtrl->PredCoef_Q12[ 0 ], psDecCtrl->PredCoef_Q12[ 1 ], 
@@ -75,8 +75,8 @@ void SKP_Silk_decode_parameters(
 
     /* After a packet loss do BWE of LPC coefs */
     if( psDec->lossCnt ) {
-        SKP_Silk_bwexpander( psDecCtrl->PredCoef_Q12[ 0 ], psDec->LPC_order, BWE_AFTER_LOSS_Q16 );
-        SKP_Silk_bwexpander( psDecCtrl->PredCoef_Q12[ 1 ], psDec->LPC_order, BWE_AFTER_LOSS_Q16 );
+        silk_bwexpander( psDecCtrl->PredCoef_Q12[ 0 ], psDec->LPC_order, BWE_AFTER_LOSS_Q16 );
+        silk_bwexpander( psDecCtrl->PredCoef_Q12[ 1 ], psDec->LPC_order, BWE_AFTER_LOSS_Q16 );
     }
 
     if( psDec->indices.signalType == TYPE_VOICED ) {
@@ -85,10 +85,10 @@ void SKP_Silk_decode_parameters(
         /*********************/
         
         /* Decode pitch values */
-        SKP_Silk_decode_pitch( psDec->indices.lagIndex, psDec->indices.contourIndex, psDecCtrl->pitchL, psDec->fs_kHz, psDec->nb_subfr );
+        silk_decode_pitch( psDec->indices.lagIndex, psDec->indices.contourIndex, psDecCtrl->pitchL, psDec->fs_kHz, psDec->nb_subfr );
 
         /* Decode Codebook Index */
-        cbk_ptr_Q7 = SKP_Silk_LTP_vq_ptrs_Q7[ psDec->indices.PERIndex ]; /* set pointer to start of codebook */
+        cbk_ptr_Q7 = silk_LTP_vq_ptrs_Q7[ psDec->indices.PERIndex ]; /* set pointer to start of codebook */
 
         for( k = 0; k < psDec->nb_subfr; k++ ) {
             Ix = psDec->indices.LTPIndex[ k ];
@@ -101,7 +101,7 @@ void SKP_Silk_decode_parameters(
         /* Decode LTP scaling */
         /**********************/
         Ix = psDec->indices.LTP_scaleIndex;
-        psDecCtrl->LTP_scale_Q14 = SKP_Silk_LTPScales_table_Q14[ Ix ];
+        psDecCtrl->LTP_scale_Q14 = silk_LTPScales_table_Q14[ Ix ];
     } else {
         SKP_memset( psDecCtrl->pitchL,      0,             psDec->nb_subfr * sizeof( SKP_int   ) );
         SKP_memset( psDecCtrl->LTPCoef_Q14, 0, LTP_ORDER * psDec->nb_subfr * sizeof( SKP_int16 ) );
diff --git a/silk/SKP_Silk_decode_pitch.c b/silk/silk_decode_pitch.c
similarity index 88%
rename from silk/SKP_Silk_decode_pitch.c
rename to silk/silk_decode_pitch.c
index 540229b7..7ec472ef 100644
--- a/silk/SKP_Silk_decode_pitch.c
+++ b/silk/silk_decode_pitch.c
@@ -28,10 +28,10 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /***********************************************************
 * Pitch analyser function
 ********************************************************** */
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_pitch_est_defines.h"
+#include "silk_SigProc_FIX.h"
+#include "silk_pitch_est_defines.h"
 
-void SKP_Silk_decode_pitch(
+void silk_decode_pitch(
     SKP_int16       lagIndex,                        /* I                             */
     SKP_int8        contourIndex,                    /* O                             */
     SKP_int         pitch_lags[],                    /* O pitch values                */
@@ -44,20 +44,20 @@ void SKP_Silk_decode_pitch(
 
     if( Fs_kHz == 8 ) {
         if( nb_subfr == PE_MAX_NB_SUBFR ) {
-            Lag_CB_ptr = &SKP_Silk_CB_lags_stage2[ 0 ][ 0 ];
+            Lag_CB_ptr = &silk_CB_lags_stage2[ 0 ][ 0 ];
             cbk_size   = PE_NB_CBKS_STAGE2_EXT;
         } else {
             SKP_assert( nb_subfr == PE_MAX_NB_SUBFR >> 1 );
-            Lag_CB_ptr = &SKP_Silk_CB_lags_stage2_10_ms[ 0 ][ 0 ];
+            Lag_CB_ptr = &silk_CB_lags_stage2_10_ms[ 0 ][ 0 ];
             cbk_size   = PE_NB_CBKS_STAGE2_10MS;
         }
     } else {
         if( nb_subfr == PE_MAX_NB_SUBFR ) {
-            Lag_CB_ptr = &SKP_Silk_CB_lags_stage3[ 0 ][ 0 ];
+            Lag_CB_ptr = &silk_CB_lags_stage3[ 0 ][ 0 ];
             cbk_size   = PE_NB_CBKS_STAGE3_MAX;
         } else {
             SKP_assert( nb_subfr == PE_MAX_NB_SUBFR >> 1 );
-            Lag_CB_ptr = &SKP_Silk_CB_lags_stage3_10_ms[ 0 ][ 0 ];
+            Lag_CB_ptr = &silk_CB_lags_stage3_10_ms[ 0 ][ 0 ];
             cbk_size   = PE_NB_CBKS_STAGE3_10MS;
         }
     }
diff --git a/silk/SKP_Silk_decode_pulses.c b/silk/silk_decode_pulses.c
similarity index 86%
rename from silk/SKP_Silk_decode_pulses.c
rename to silk/silk_decode_pulses.c
index 2a92790f..9c0aa94a 100644
--- a/silk/SKP_Silk_decode_pulses.c
+++ b/silk/silk_decode_pulses.c
@@ -25,12 +25,12 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 /*********************************************/
 /* Decode quantization indices of excitation */
 /*********************************************/
-void SKP_Silk_decode_pulses(
+void silk_decode_pulses(
     ec_dec                          *psRangeDec,        /* I/O  Compressor data structure                   */
     SKP_int                         pulses[],           /* O    Excitation signal                           */
     const SKP_int                   signalType,         /* I    Sigtype                                     */
@@ -46,7 +46,7 @@ void SKP_Silk_decode_pulses(
     /*********************/
     /* Decode rate level */
     /*********************/
-    RateLevelIndex = ec_dec_icdf( psRangeDec, SKP_Silk_rate_levels_iCDF[ signalType >> 1 ], 8 );
+    RateLevelIndex = ec_dec_icdf( psRangeDec, silk_rate_levels_iCDF[ signalType >> 1 ], 8 );
 
     /* Calculate number of shell blocks */
     SKP_assert( 1 << LOG2_SHELL_CODEC_FRAME_LENGTH == SHELL_CODEC_FRAME_LENGTH );
@@ -59,7 +59,7 @@ void SKP_Silk_decode_pulses(
     /***************************************************/
     /* Sum-Weighted-Pulses Decoding                    */
     /***************************************************/
-    cdf_ptr = SKP_Silk_pulses_per_block_iCDF[ RateLevelIndex ];
+    cdf_ptr = silk_pulses_per_block_iCDF[ RateLevelIndex ];
     for( i = 0; i < iter; i++ ) {
         nLshifts[ i ] = 0;
         sum_pulses[ i ] = ec_dec_icdf( psRangeDec, cdf_ptr, 8 );
@@ -67,7 +67,7 @@ void SKP_Silk_decode_pulses(
         /* LSB indication */
         while( sum_pulses[ i ] == MAX_PULSES + 1 ) {
             nLshifts[ i ]++;
-            sum_pulses[ i ] = ec_dec_icdf( psRangeDec, SKP_Silk_pulses_per_block_iCDF[ N_RATE_LEVELS - 1 ], 8 );
+            sum_pulses[ i ] = ec_dec_icdf( psRangeDec, silk_pulses_per_block_iCDF[ N_RATE_LEVELS - 1 ], 8 );
         }
     }
     
@@ -76,7 +76,7 @@ void SKP_Silk_decode_pulses(
     /***************************************************/
     for( i = 0; i < iter; i++ ) {
         if( sum_pulses[ i ] > 0 ) {
-            SKP_Silk_shell_decoder( &pulses[ SKP_SMULBB( i, SHELL_CODEC_FRAME_LENGTH ) ], psRangeDec, sum_pulses[ i ] );
+            silk_shell_decoder( &pulses[ SKP_SMULBB( i, SHELL_CODEC_FRAME_LENGTH ) ], psRangeDec, sum_pulses[ i ] );
         } else {
             SKP_memset( &pulses[ SKP_SMULBB( i, SHELL_CODEC_FRAME_LENGTH ) ], 0, SHELL_CODEC_FRAME_LENGTH * sizeof( SKP_int ) );
         }
@@ -93,7 +93,7 @@ void SKP_Silk_decode_pulses(
                 abs_q = pulses_ptr[ k ];
                 for( j = 0; j < nLS; j++ ) {
                     abs_q = SKP_LSHIFT( abs_q, 1 ); 
-                    abs_q += ec_dec_icdf( psRangeDec, SKP_Silk_lsb_iCDF, 8 );
+                    abs_q += ec_dec_icdf( psRangeDec, silk_lsb_iCDF, 8 );
                 }
                 pulses_ptr[ k ] = abs_q;
             }
@@ -103,5 +103,5 @@ void SKP_Silk_decode_pulses(
     /****************************************/
     /* Decode and add signs to pulse signal */
     /****************************************/
-    SKP_Silk_decode_signs( psRangeDec, pulses, frame_length, signalType, quantOffsetType, sum_pulses );
+    silk_decode_signs( psRangeDec, pulses, frame_length, signalType, quantOffsetType, sum_pulses );
 }
diff --git a/silk/SKP_Silk_decoder_set_fs.c b/silk/silk_decoder_set_fs.c
similarity index 80%
rename from silk/SKP_Silk_decoder_set_fs.c
rename to silk/silk_decoder_set_fs.c
index ea316fc9..9d0710c5 100644
--- a/silk/SKP_Silk_decoder_set_fs.c
+++ b/silk/silk_decoder_set_fs.c
@@ -25,11 +25,11 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 /* Set decoder sampling rate */
-void SKP_Silk_decoder_set_fs(
-    SKP_Silk_decoder_state          *psDec,             /* I/O  Decoder state pointer                       */
+void silk_decoder_set_fs(
+    silk_decoder_state          *psDec,             /* I/O  Decoder state pointer                       */
     SKP_int                         fs_kHz              /* I    Sampling frequency (kHz)                    */
 )
 {
@@ -46,23 +46,23 @@ void SKP_Silk_decoder_set_fs(
         psDec->ltp_mem_length = SKP_SMULBB( LTP_MEM_LENGTH_MS, fs_kHz );
         if( psDec->fs_kHz == 8 ) {
             if( psDec->nb_subfr == MAX_NB_SUBFR ) {
-                psDec->pitch_contour_iCDF = SKP_Silk_pitch_contour_NB_iCDF; 
+                psDec->pitch_contour_iCDF = silk_pitch_contour_NB_iCDF; 
             } else {
-                psDec->pitch_contour_iCDF = SKP_Silk_pitch_contour_10_ms_NB_iCDF;
+                psDec->pitch_contour_iCDF = silk_pitch_contour_10_ms_NB_iCDF;
             }
         } else {
             if( psDec->nb_subfr == MAX_NB_SUBFR ) {
-                psDec->pitch_contour_iCDF = SKP_Silk_pitch_contour_iCDF; 
+                psDec->pitch_contour_iCDF = silk_pitch_contour_iCDF; 
             } else {
-                psDec->pitch_contour_iCDF = SKP_Silk_pitch_contour_10_ms_iCDF;
+                psDec->pitch_contour_iCDF = silk_pitch_contour_10_ms_iCDF;
             }
         }
         if( psDec->fs_kHz == 8 || psDec->fs_kHz == 12 ) {
             psDec->LPC_order = MIN_LPC_ORDER;
-            psDec->psNLSF_CB = &SKP_Silk_NLSF_CB_NB_MB;
+            psDec->psNLSF_CB = &silk_NLSF_CB_NB_MB;
         } else {
             psDec->LPC_order = MAX_LPC_ORDER;
-            psDec->psNLSF_CB = &SKP_Silk_NLSF_CB_WB;
+            psDec->psNLSF_CB = &silk_NLSF_CB_WB;
         }
 
         /* Reset part of the decoder state */
@@ -76,11 +76,11 @@ void SKP_Silk_decoder_set_fs(
         psDec->first_frame_after_reset = 1;
 
         if( fs_kHz == 16 ) {
-            psDec->pitch_lag_low_bits_iCDF = SKP_Silk_uniform8_iCDF;
+            psDec->pitch_lag_low_bits_iCDF = silk_uniform8_iCDF;
         } else if( fs_kHz == 12 ) {
-            psDec->pitch_lag_low_bits_iCDF = SKP_Silk_uniform6_iCDF;
+            psDec->pitch_lag_low_bits_iCDF = silk_uniform6_iCDF;
         } else if( fs_kHz == 8 ) {
-            psDec->pitch_lag_low_bits_iCDF = SKP_Silk_uniform4_iCDF;
+            psDec->pitch_lag_low_bits_iCDF = silk_uniform4_iCDF;
         } else {
             /* unsupported sampling rate */
             SKP_assert( 0 );
diff --git a/silk/SKP_Silk_define.h b/silk/silk_define.h
similarity index 92%
rename from silk/SKP_Silk_define.h
rename to silk/silk_define.h
index 22917fa0..716abde1 100644
--- a/silk/SKP_Silk_define.h
+++ b/silk/silk_define.h
@@ -25,11 +25,11 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#ifndef SKP_SILK_DEFINE_H
-#define SKP_SILK_DEFINE_H
+#ifndef SILK_DEFINE_H
+#define SILK_DEFINE_H
 
-#include "SKP_Silk_errors.h"
-#include "SKP_Silk_typedef.h"
+#include "silk_errors.h"
+#include "silk_typedef.h"
 
 #ifdef HAVE_CONFIG_H
 #include "config.h"
@@ -52,13 +52,10 @@ extern "C"
 #define MAX_TARGET_RATE_BPS                     80000
 #define TARGET_RATE_TAB_SZ                      8
 
-/* Decay time for bitreservoir */
-#define BITRESERVOIR_DECAY_TIME_MS              200
-
 /* LBRR thresholds */
-#define LBRR_NB_MIN_RATE_BPS                    9000
-#define LBRR_MB_MIN_RATE_BPS                    12000
-#define LBRR_WB_MIN_RATE_BPS                    15000
+#define LBRR_NB_MIN_RATE_BPS                    12000
+#define LBRR_MB_MIN_RATE_BPS                    14000
+#define LBRR_WB_MIN_RATE_BPS                    16000
 
 /* DTX settings */
 #define NB_SPEECH_FRAMES_BEFORE_DTX             10      /* eq 200 ms */
@@ -73,16 +70,17 @@ extern "C"
 #define TYPE_UNVOICED                           1
 #define TYPE_VOICED                             2
 
-/* Setting for stereo processing */
+/* Settings for stereo processing */
 #define STEREO_QUANT_TAB_SIZE                   16
 #define STEREO_QUANT_SUB_STEPS                  5
 #define STEREO_INTERP_LEN_MS                    8           /* must be even */
+#define STEREO_RATIO_SMOOTH_COEF                0.01        /* smoothing coef for signal norms and stereo width */
 
 /* Range of pitch lag estimates */
 #define PITCH_EST_MIN_LAG_MS                    2           /* 2 ms -> 500 Hz */
 #define PITCH_EST_MAX_LAG_MS                    18          /* 18 ms -> 56 Hz */
 
-/* Number of subframes */
+/* Maximum number of subframes */
 #define MAX_NB_SUBFR                            4
 
 /* Number of samples per frame */ 
@@ -201,6 +199,9 @@ extern "C"
 /* smoothing for SNR measurement */
 #define VAD_SNR_SMOOTH_COEF_Q18                 4096
 
+/* Size of the piecewise linear cosine approximation table for the LSFs */
+#define LSF_COS_TAB_SZ_FIX                      128
+
 /******************/
 /* NLSF quantizer */
 /******************/
diff --git a/silk/SKP_Silk_enc_API.c b/silk/silk_enc_API.c
similarity index 56%
rename from silk/SKP_Silk_enc_API.c
rename to silk/silk_enc_API.c
index f5560c9e..9f06eced 100644
--- a/silk/SKP_Silk_enc_API.c
+++ b/silk/silk_enc_API.c
@@ -25,45 +25,28 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
 
-#include "SKP_Silk_define.h"
-#include "SKP_Silk_SDK_API.h"
-#include "SKP_Silk_control.h"
-#include "SKP_Silk_typedef.h"
-#include "SKP_Silk_structs.h"
-#include "SKP_Silk_tuning_parameters.h"
+#include "silk_define.h"
+#include "silk_API.h"
+#include "silk_control.h"
+#include "silk_typedef.h"
+#include "silk_structs.h"
+#include "silk_tuning_parameters.h"
 #ifdef FIXED_POINT
-#include "SKP_Silk_main_FIX.h"
-#define SKP_Silk_encoder_state_Fxx      SKP_Silk_encoder_state_FIX
-#define SKP_Silk_encode_frame_Fxx       SKP_Silk_encode_frame_FIX
+#include "silk_main_FIX.h"
 #else
-#include "SKP_Silk_main_FLP.h"
-#define SKP_Silk_encoder_state_Fxx      SKP_Silk_encoder_state_FLP
-#define SKP_Silk_encode_frame_Fxx       SKP_Silk_encode_frame_FLP
+#include "silk_main_FLP.h"
 #endif
 
-/* Encoder Super Struct */
-typedef struct {
-    SKP_Silk_encoder_state_Fxx          state_Fxx[ ENCODER_NUM_CHANNELS ];
-    stereo_state                        sStereo;
-    SKP_int32                           nBitsExceeded;
-    SKP_int                             nChannels;
-    SKP_int                             timeSinceSwitchAllowed_ms;
-    SKP_int                             allowBandwidthSwitch;
-} SKP_Silk_encoder;
-
 /****************************************/
 /* Encoder functions                    */
 /****************************************/
 
-SKP_int SKP_Silk_SDK_Get_Encoder_Size( SKP_int32 *encSizeBytes )
+SKP_int silk_Get_Encoder_Size( SKP_int32 *encSizeBytes )
 {
-    SKP_int ret = SKP_SILK_NO_ERROR;
+    SKP_int ret = SILK_NO_ERROR;
     
-    *encSizeBytes = sizeof( SKP_Silk_encoder );
+    *encSizeBytes = sizeof( silk_encoder );
     
     return ret;
 }
@@ -71,29 +54,29 @@ SKP_int SKP_Silk_SDK_Get_Encoder_Size( SKP_int32 *encSizeBytes )
 /*************************/
 /* Init or Reset encoder */
 /*************************/
-SKP_int SKP_Silk_SDK_InitEncoder(
+SKP_int silk_InitEncoder(
     void                            *encState,          /* I/O: State                                           */
-    SKP_SILK_SDK_EncControlStruct   *encStatus          /* O:   Control structure                               */
+    silk_EncControlStruct   		*encStatus          /* O:   Control structure                               */
 )
 {
-    SKP_Silk_encoder *psEnc;
-    SKP_int n, ret = SKP_SILK_NO_ERROR;
+    silk_encoder *psEnc;
+    SKP_int n, ret = SILK_NO_ERROR;
 
-    psEnc = (SKP_Silk_encoder *)encState;
+    psEnc = (silk_encoder *)encState;
     
     /* Reset encoder */
+    SKP_memset( psEnc, 0, sizeof( silk_encoder ) );
     for( n = 0; n < ENCODER_NUM_CHANNELS; n++ ) {
-        if( ret += SKP_Silk_init_encoder( &psEnc->state_Fxx[ n ] ) ) {
+        if( ret += silk_init_encoder( &psEnc->state_Fxx[ n ] ) ) {
             SKP_assert( 0 );
         }
     }
-    SKP_memset( &psEnc->sStereo, 0, sizeof( psEnc->sStereo ) );
 
-    psEnc->nBitsExceeded = 0;
-    psEnc->nChannels = 1;
+    psEnc->nChannelsAPI = 1;
+    psEnc->nChannelsInternal = 1;
 
     /* Read control structure */
-    if( ret += SKP_Silk_SDK_QueryEncoder( encState, encStatus ) ) {
+    if( ret += silk_QueryEncoder( encState, encStatus ) ) {
         SKP_assert( 0 );
     }
 
@@ -103,28 +86,33 @@ SKP_int SKP_Silk_SDK_InitEncoder(
 /***************************************/
 /* Read control structure from encoder */
 /***************************************/
-SKP_int SKP_Silk_SDK_QueryEncoder(
+SKP_int silk_QueryEncoder(
     const void *encState,                       /* I:   State Vector                                    */
-    SKP_SILK_SDK_EncControlStruct *encStatus    /* O:   Control Structure                               */
+    silk_EncControlStruct *encStatus            /* O:   Control Structure                               */
 )
 {
-    SKP_Silk_encoder_state_Fxx *state_Fxx;
-    SKP_int ret = SKP_SILK_NO_ERROR;
+    SKP_int ret = SILK_NO_ERROR;
+    silk_encoder_state_Fxx *state_Fxx;
+    silk_encoder *psEnc = (silk_encoder *)encState;
 
-    state_Fxx = ((SKP_Silk_encoder *)encState)->state_Fxx;
+    state_Fxx = psEnc->state_Fxx;
 
-    encStatus->API_sampleRate            = state_Fxx->sCmn.API_fs_Hz;
-    encStatus->maxInternalSampleRate     = state_Fxx->sCmn.maxInternal_fs_Hz;
-    encStatus->minInternalSampleRate     = state_Fxx->sCmn.minInternal_fs_Hz;
-    encStatus->desiredInternalSampleRate = state_Fxx->sCmn.desiredInternal_fs_Hz;
-    encStatus->payloadSize_ms            = state_Fxx->sCmn.PacketSize_ms;
-    encStatus->bitRate                   = state_Fxx->sCmn.TargetRate_bps;
-    encStatus->packetLossPercentage      = state_Fxx->sCmn.PacketLoss_perc;
-    encStatus->complexity                = state_Fxx->sCmn.Complexity;
-    encStatus->useInBandFEC              = state_Fxx->sCmn.useInBandFEC;
-    encStatus->useDTX                    = state_Fxx->sCmn.useDTX;
-    encStatus->useCBR                    = state_Fxx->sCmn.useCBR;
-    encStatus->internalSampleRate        = SKP_SMULBB( state_Fxx->sCmn.fs_kHz, 1000 );
+    encStatus->nChannelsAPI              = psEnc->nChannelsAPI;
+    encStatus->nChannelsInternal         = psEnc->nChannelsInternal;
+    encStatus->API_sampleRate            = state_Fxx[ 0 ].sCmn.API_fs_Hz;
+    encStatus->maxInternalSampleRate     = state_Fxx[ 0 ].sCmn.maxInternal_fs_Hz;
+    encStatus->minInternalSampleRate     = state_Fxx[ 0 ].sCmn.minInternal_fs_Hz;
+    encStatus->desiredInternalSampleRate = state_Fxx[ 0 ].sCmn.desiredInternal_fs_Hz;
+    encStatus->payloadSize_ms            = state_Fxx[ 0 ].sCmn.PacketSize_ms;
+    encStatus->bitRate                   = state_Fxx[ 0 ].sCmn.TargetRate_bps;
+    encStatus->packetLossPercentage      = state_Fxx[ 0 ].sCmn.PacketLoss_perc;
+    encStatus->complexity                = state_Fxx[ 0 ].sCmn.Complexity;
+    encStatus->useInBandFEC              = state_Fxx[ 0 ].sCmn.useInBandFEC;
+    encStatus->useDTX                    = state_Fxx[ 0 ].sCmn.useDTX;
+    encStatus->useCBR                    = state_Fxx[ 0 ].sCmn.useCBR;
+    encStatus->internalSampleRate        = SKP_SMULBB( state_Fxx[ 0 ].sCmn.fs_kHz, 1000 );
+    encStatus->allowBandwidthSwitch      = state_Fxx[ 0 ].sCmn.allow_bandwidth_switch;
+    encStatus->inWBmodeWithoutVariableLP = state_Fxx[ 0 ].sCmn.fs_kHz == 16 && state_Fxx[ 0 ].sCmn.sLP.mode == 0;
 
     return ret;
 }
@@ -132,9 +120,9 @@ SKP_int SKP_Silk_SDK_QueryEncoder(
 /**************************/
 /* Encode frame with Silk */
 /**************************/
-SKP_int SKP_Silk_SDK_Encode( 
+SKP_int silk_Encode( 
     void                                *encState,      /* I/O: State                                           */
-    SKP_SILK_SDK_EncControlStruct       *encControl,    /* I:   Control structure                               */
+    silk_EncControlStruct               *encControl,    /* I:   Control structure                               */
     const SKP_int16                     *samplesIn,     /* I:   Speech sample input vector                      */
     SKP_int                             nSamplesIn,     /* I:   Number of samples in input vector               */
     ec_enc                              *psRangeEnc,    /* I/O  Compressor data structure                       */
@@ -142,11 +130,11 @@ SKP_int SKP_Silk_SDK_Encode(
     const SKP_int                       prefillFlag     /* I:   Flag to indicate prefilling buffers; no coding  */
 )
 {
-    SKP_int   n, i, nBits, flags, tmp_payloadSize_ms, tmp_complexity, ret = 0;
+    SKP_int   n, i, nBits, flags, tmp_payloadSize_ms = 0, tmp_complexity = 0, ret = 0;
     SKP_int   nSamplesToBuffer, nBlocksOf10ms, nSamplesFromInput = 0;
     SKP_int   speech_act_thr_for_switch_Q8;
-    SKP_int32 TargetRate_bps, channelRate_bps, LBRR_symbol;
-    SKP_Silk_encoder *psEnc = ( SKP_Silk_encoder * )encState;
+    SKP_int32 TargetRate_bps, MStargetRates_bps[ 2 ], channelRate_bps, LBRR_symbol;
+    silk_encoder *psEnc = ( silk_encoder * )encState;
     SKP_int   MS_predictorIx[ 2 ] = { 0 };
     SKP_int16 buf[ MAX_FRAME_LENGTH_MS * MAX_API_FS_KHZ ];
 
@@ -156,24 +144,33 @@ SKP_int SKP_Silk_SDK_Encode(
         return ret;
     }
 
-    if( encControl->nChannels > psEnc->nChannels ) {
+    if( encControl->nChannelsInternal > psEnc->nChannelsInternal ) {
         /* Mono -> Stereo transition: init state of second channel and stereo state */
-        SKP_memset( &psEnc->sStereo, 0, sizeof( psEnc->sStereo ) );
-        ret += SKP_Silk_init_encoder( &psEnc->state_Fxx[ 1 ] );
+        ret += silk_init_encoder( &psEnc->state_Fxx[ 1 ] );
+        SKP_memset( psEnc->sStereo.pred_prev_Q13, 0, sizeof( psEnc->sStereo.pred_prev_Q13 ) );
+        SKP_memset( psEnc->sStereo.sSide, 0, sizeof( psEnc->sStereo.sSide ) );
+        SKP_memset( psEnc->sStereo.mid_side_amp_Q0, 0, sizeof( psEnc->sStereo.mid_side_amp_Q0 ) );
+        psEnc->sStereo.width_prev_Q14 = 0;
+        psEnc->sStereo.smth_width_Q14 = SILK_FIX_CONST( 1, 14 );
+        if( psEnc->nChannelsAPI == 2 ) {
+            SKP_memcpy( &psEnc->state_Fxx[ 1 ].sCmn.resampler_state, &psEnc->state_Fxx[ 0 ].sCmn.resampler_state, sizeof( silk_resampler_state_struct ) );
+            SKP_memcpy( &psEnc->state_Fxx[ 1 ].sCmn.In_HP_State,     &psEnc->state_Fxx[ 0 ].sCmn.In_HP_State,     sizeof( psEnc->state_Fxx[ 1 ].sCmn.In_HP_State ) );
+        }
     }
-    psEnc->nChannels = encControl->nChannels;
+    psEnc->nChannelsAPI = encControl->nChannelsAPI;
+    psEnc->nChannelsInternal = encControl->nChannelsInternal;
 
     nBlocksOf10ms = SKP_DIV32( 100 * nSamplesIn, encControl->API_sampleRate );
     if( prefillFlag ) {
         /* Only accept input length of 10 ms */
         if( nBlocksOf10ms != 1 ) {
-            ret = SKP_SILK_ENC_INPUT_INVALID_NO_OF_SAMPLES;
+            ret = SILK_ENC_INPUT_INVALID_NO_OF_SAMPLES;
             SKP_assert( 0 );
             return ret;
         }
         /* Reset Encoder */
-        for( n = 0; n < encControl->nChannels; n++ ) {
-            if( ret = SKP_Silk_init_encoder( &psEnc->state_Fxx[ n ] ) ) {
+        for( n = 0; n < encControl->nChannelsInternal; n++ ) {
+            if( ret = silk_init_encoder( &psEnc->state_Fxx[ n ] ) ) {
                 SKP_assert( 0 );
             }
         }
@@ -181,33 +178,33 @@ SKP_int SKP_Silk_SDK_Encode(
         encControl->payloadSize_ms = 10;
         tmp_complexity = encControl->complexity;
         encControl->complexity = 0;
-        for( n = 0; n < encControl->nChannels; n++ ) {
+        for( n = 0; n < encControl->nChannelsInternal; n++ ) {
             psEnc->state_Fxx[ n ].sCmn.controlled_since_last_payload = 0;
             psEnc->state_Fxx[ n ].sCmn.prefillFlag = 1;
         }
     } else {
         /* Only accept input lengths that are a multiple of 10 ms */
         if( nBlocksOf10ms * encControl->API_sampleRate != 100 * nSamplesIn || nSamplesIn < 0 ) {
-            ret = SKP_SILK_ENC_INPUT_INVALID_NO_OF_SAMPLES;
+            ret = SILK_ENC_INPUT_INVALID_NO_OF_SAMPLES;
             SKP_assert( 0 );
             return ret;
         }
         /* Make sure no more than one packet can be produced */
         if( 1000 * (SKP_int32)nSamplesIn > encControl->payloadSize_ms * encControl->API_sampleRate ) {
-            ret = SKP_SILK_ENC_INPUT_INVALID_NO_OF_SAMPLES;
+            ret = SILK_ENC_INPUT_INVALID_NO_OF_SAMPLES;
             SKP_assert( 0 );
             return ret;
         }
     }
 
-    TargetRate_bps = SKP_RSHIFT32( encControl->bitRate, encControl->nChannels - 1 );
-    for( n = 0; n < encControl->nChannels; n++ ) {
-        if( ( ret = SKP_Silk_control_encoder( &psEnc->state_Fxx[ n ], encControl, TargetRate_bps, psEnc->allowBandwidthSwitch, n ) ) != 0 ) {
+    TargetRate_bps = SKP_RSHIFT32( encControl->bitRate, encControl->nChannelsInternal - 1 );
+    for( n = 0; n < encControl->nChannelsInternal; n++ ) {
+        if( ( ret = silk_control_encoder( &psEnc->state_Fxx[ n ], encControl, TargetRate_bps, psEnc->allowBandwidthSwitch, n ) ) != 0 ) {
             SKP_assert( 0 );
             return ret;
         }
     }
-    SKP_assert( encControl->nChannels == 1 || psEnc->state_Fxx[ 0 ].sCmn.fs_kHz == psEnc->state_Fxx[ 1 ].sCmn.fs_kHz );
+    SKP_assert( encControl->nChannelsInternal == 1 || psEnc->state_Fxx[ 0 ].sCmn.fs_kHz == psEnc->state_Fxx[ 1 ].sCmn.fs_kHz );
 
     /* Input buffering/resampling and encoding */
     while( 1 ) {
@@ -215,11 +212,11 @@ SKP_int SKP_Silk_SDK_Encode(
         nSamplesToBuffer  = SKP_min( nSamplesToBuffer, 10 * nBlocksOf10ms * psEnc->state_Fxx[ 0 ].sCmn.fs_kHz );
         nSamplesFromInput = SKP_DIV32_16( nSamplesToBuffer * psEnc->state_Fxx[ 0 ].sCmn.API_fs_Hz, psEnc->state_Fxx[ 0 ].sCmn.fs_kHz * 1000 );
         /* Resample and write to buffer */
-        if( encControl->nChannels == 2 ) {
+        if( encControl->nChannelsAPI == 2 && encControl->nChannelsInternal == 2 ) {
             for( n = 0; n < nSamplesFromInput; n++ ) {
                 buf[ n ] = samplesIn[ 2 * n ];
             }
-            ret += SKP_Silk_resampler( &psEnc->state_Fxx[ 0 ].sCmn.resampler_state, 
+            ret += silk_resampler( &psEnc->state_Fxx[ 0 ].sCmn.resampler_state, 
                 &psEnc->state_Fxx[ 0 ].sCmn.inputBuf[ psEnc->state_Fxx[ 0 ].sCmn.inputBufIx ], buf, nSamplesFromInput );
             psEnc->state_Fxx[ 0 ].sCmn.inputBufIx += nSamplesToBuffer;
 
@@ -228,16 +225,24 @@ SKP_int SKP_Silk_SDK_Encode(
             for( n = 0; n < nSamplesFromInput; n++ ) {
                 buf[ n ] = samplesIn[ 2 * n + 1 ];
             }
-            ret += SKP_Silk_resampler( &psEnc->state_Fxx[ 1 ].sCmn.resampler_state, 
+            ret += silk_resampler( &psEnc->state_Fxx[ 1 ].sCmn.resampler_state, 
                 &psEnc->state_Fxx[ 1 ].sCmn.inputBuf[ psEnc->state_Fxx[ 1 ].sCmn.inputBufIx ], buf, nSamplesFromInput );
             psEnc->state_Fxx[ 1 ].sCmn.inputBufIx += nSamplesToBuffer;
+        } else if( encControl->nChannelsAPI == 2 && encControl->nChannelsInternal == 1 ) {
+            /* Combine left and right channels before resampling */
+            for( n = 0; n < nSamplesFromInput; n++ ) {
+                buf[ n ] = (SKP_int16)SKP_RSHIFT_ROUND( samplesIn[ 2 * n ] + samplesIn[ 2 * n + 1 ],  1 );
+            }
+            ret += silk_resampler( &psEnc->state_Fxx[ 0 ].sCmn.resampler_state, 
+                &psEnc->state_Fxx[ 0 ].sCmn.inputBuf[ psEnc->state_Fxx[ 0 ].sCmn.inputBufIx ], buf, nSamplesFromInput );
+            psEnc->state_Fxx[ 0 ].sCmn.inputBufIx += nSamplesToBuffer;
         } else {
-            SKP_assert( encControl->nChannels == 1 );
-            ret += SKP_Silk_resampler( &psEnc->state_Fxx[ 0 ].sCmn.resampler_state, 
+            SKP_assert( encControl->nChannelsAPI == 1 && encControl->nChannelsInternal == 1 );
+            ret += silk_resampler( &psEnc->state_Fxx[ 0 ].sCmn.resampler_state, 
                 &psEnc->state_Fxx[ 0 ].sCmn.inputBuf[ psEnc->state_Fxx[ 0 ].sCmn.inputBufIx ], samplesIn, nSamplesFromInput );
             psEnc->state_Fxx[ 0 ].sCmn.inputBufIx += nSamplesToBuffer;
         }
-        samplesIn  += nSamplesFromInput * encControl->nChannels;
+        samplesIn  += nSamplesFromInput * encControl->nChannelsAPI;
         nSamplesIn -= nSamplesFromInput;
 
         /* Default */
@@ -247,58 +252,57 @@ SKP_int SKP_Silk_SDK_Encode(
         if( psEnc->state_Fxx[ 0 ].sCmn.inputBufIx >= psEnc->state_Fxx[ 0 ].sCmn.frame_length ) {
             /* Enough data in input buffer, so encode */
             SKP_assert( psEnc->state_Fxx[ 0 ].sCmn.inputBufIx == psEnc->state_Fxx[ 0 ].sCmn.frame_length );
-            SKP_assert( encControl->nChannels == 1 || psEnc->state_Fxx[ 1 ].sCmn.inputBufIx == psEnc->state_Fxx[ 1 ].sCmn.frame_length );
+            SKP_assert( encControl->nChannelsInternal == 1 || psEnc->state_Fxx[ 1 ].sCmn.inputBufIx == psEnc->state_Fxx[ 1 ].sCmn.frame_length );
 
             /* Deal with LBRR data */
-            if( psEnc->state_Fxx[ 0 ].sCmn.nFramesAnalyzed == 0 && !prefillFlag ) {
+            if( psEnc->state_Fxx[ 0 ].sCmn.nFramesEncoded == 0 && !prefillFlag ) {
                 /* Create space at start of payload for VAD and FEC flags */
                 SKP_uint8 iCDF[ 2 ] = { 0, 0 };
-                iCDF[ 0 ] = 256 - SKP_RSHIFT( 256, ( psEnc->state_Fxx[ 0 ].sCmn.nFramesPerPacket + 1 ) * encControl->nChannels );
+                iCDF[ 0 ] = 256 - SKP_RSHIFT( 256, ( psEnc->state_Fxx[ 0 ].sCmn.nFramesPerPacket + 1 ) * encControl->nChannelsInternal );
                 ec_enc_icdf( psRangeEnc, 0, iCDF, 8 );
 
                 /* Encode any LBRR data from previous packet */
                 /* Encode LBRR flags */
-                for( n = 0; n < encControl->nChannels; n++ ) {
+                for( n = 0; n < encControl->nChannelsInternal; n++ ) {
                     LBRR_symbol = 0;
                     for( i = 0; i < psEnc->state_Fxx[ n ].sCmn.nFramesPerPacket; i++ ) {
                         LBRR_symbol |= SKP_LSHIFT( psEnc->state_Fxx[ n ].sCmn.LBRR_flags[ i ], i );
                     }
                     psEnc->state_Fxx[ n ].sCmn.LBRR_flag = LBRR_symbol > 0 ? 1 : 0;
                     if( LBRR_symbol && psEnc->state_Fxx[ n ].sCmn.nFramesPerPacket > 1 ) {
-                        ec_enc_icdf( psRangeEnc, LBRR_symbol - 1, SKP_Silk_LBRR_flags_iCDF_ptr[ psEnc->state_Fxx[ n ].sCmn.nFramesPerPacket - 2 ], 8 );
+                        ec_enc_icdf( psRangeEnc, LBRR_symbol - 1, silk_LBRR_flags_iCDF_ptr[ psEnc->state_Fxx[ n ].sCmn.nFramesPerPacket - 2 ], 8 );
                     }
                 }
 
                 /* Code LBRR indices and excitation signals */
                 for( i = 0; i < psEnc->state_Fxx[ 0 ].sCmn.nFramesPerPacket; i++ ) {
-                    for( n = 0; n < encControl->nChannels; n++ ) {                
+                    for( n = 0; n < encControl->nChannelsInternal; n++ ) {                
                         if( psEnc->state_Fxx[ n ].sCmn.LBRR_flags[ i ] ) {
-                            SKP_Silk_encode_indices( &psEnc->state_Fxx[ n ].sCmn, psRangeEnc, i, 1 );
-                            SKP_Silk_encode_pulses( psRangeEnc, psEnc->state_Fxx[ n ].sCmn.indices_LBRR[i].signalType, psEnc->state_Fxx[ n ].sCmn.indices_LBRR[i].quantOffsetType, 
+                            if( encControl->nChannelsInternal == 2 && n == 0 ) {
+                                silk_stereo_encode_pred( psRangeEnc, psEnc->sStereo.ix[ i ] );
+                            }
+                            silk_encode_indices( &psEnc->state_Fxx[ n ].sCmn, psRangeEnc, i, 1 );
+                            silk_encode_pulses( psRangeEnc, psEnc->state_Fxx[ n ].sCmn.indices_LBRR[i].signalType, psEnc->state_Fxx[ n ].sCmn.indices_LBRR[i].quantOffsetType, 
                                 psEnc->state_Fxx[ n ].sCmn.pulses_LBRR[ i ], psEnc->state_Fxx[ n ].sCmn.frame_length );
                         }
                     }
                 }
 
                 /* Reset LBRR flags */
-                for( n = 0; n < encControl->nChannels; n++ ) {                
+                for( n = 0; n < encControl->nChannelsInternal; n++ ) {                
                     SKP_memset( psEnc->state_Fxx[ n ].sCmn.LBRR_flags, 0, sizeof( psEnc->state_Fxx[ n ].sCmn.LBRR_flags ) );
                 }
             }
 
-            /* Convert Left/Right to Mid/Side */
-            if( encControl->nChannels == 2 ) {
-                SKP_Silk_stereo_LR_to_MS( psRangeEnc, &psEnc->sStereo, psEnc->state_Fxx[ 0 ].sCmn.inputBuf, psEnc->state_Fxx[ 1 ].sCmn.inputBuf, 
-                    psEnc->state_Fxx[ 0 ].sCmn.fs_kHz, psEnc->state_Fxx[ 0 ].sCmn.frame_length );
-            }
-
+            /* High-pass filter */
+            silk_HP_variable_cutoff( psEnc->state_Fxx, psEnc->nChannelsInternal );
 
             /* Total target bits for packet */
             nBits = SKP_DIV32_16( SKP_MUL( encControl->bitRate, encControl->payloadSize_ms ), 1000 );
-            /* Subtract bits already used */
-            nBits -= ec_tell( psRangeEnc );
+            /* Subtract half of the bits already used */
+            nBits -= ec_tell( psRangeEnc ) >> 1;
             /* Divide by number of uncoded frames left in packet */
-            nBits = SKP_DIV32_16( nBits, psEnc->state_Fxx[ 0 ].sCmn.nFramesPerPacket - psEnc->state_Fxx[ 0 ].sCmn.nFramesAnalyzed );
+            nBits = SKP_DIV32_16( nBits, psEnc->state_Fxx[ 0 ].sCmn.nFramesPerPacket - psEnc->state_Fxx[ 0 ].sCmn.nFramesEncoded );
             /* Convert to bits/second */
             if( encControl->payloadSize_ms == 10 ) {
                 TargetRate_bps = SKP_SMULBB( nBits, 100 );
@@ -307,23 +311,37 @@ SKP_int SKP_Silk_SDK_Encode(
             }
             /* Subtract fraction of bits in excess of target in previous packets */
             TargetRate_bps -= SKP_DIV32_16( SKP_MUL( psEnc->nBitsExceeded, 1000 ), BITRESERVOIR_DECAY_TIME_MS );
-            /* Don't exceed input bitrate */
-            TargetRate_bps = SKP_min( TargetRate_bps, encControl->bitRate );
+            /* Never exceed input bitrate */
+            TargetRate_bps = SKP_LIMIT( TargetRate_bps, encControl->bitRate, 5000 );
+
+            /* Convert Left/Right to Mid/Side */
+            if( encControl->nChannelsInternal == 2 ) {
+                silk_stereo_LR_to_MS( &psEnc->sStereo, psEnc->state_Fxx[ 0 ].sCmn.inputBuf, psEnc->state_Fxx[ 1 ].sCmn.inputBuf, 
+                    psEnc->sStereo.ix[ psEnc->state_Fxx[ 0 ].sCmn.nFramesEncoded ], MStargetRates_bps, TargetRate_bps, 
+                    psEnc->state_Fxx[ 0 ].sCmn.speech_activity_Q8, psEnc->state_Fxx[ 0 ].sCmn.fs_kHz, psEnc->state_Fxx[ 0 ].sCmn.frame_length );
+                silk_stereo_encode_pred( psRangeEnc, psEnc->sStereo.ix[ psEnc->state_Fxx[ 0 ].sCmn.nFramesEncoded ] );
+            } else {
+                /* Buffering */
+                SKP_memcpy( &psEnc->state_Fxx[ 0 ].sCmn.inputBuf[ -2 ], psEnc->sStereo.sMid, 2 * sizeof( SKP_int16 ) );
+                SKP_memcpy( psEnc->sStereo.sMid, &psEnc->state_Fxx[ 0 ].sCmn.inputBuf[ psEnc->state_Fxx[ 0 ].sCmn.frame_length - 2 ], 2 * sizeof( SKP_int16 ) );
+            }
 
             /* Encode */
-            for( n = 0; n < encControl->nChannels; n++ ) {
-                /* For stereo coding, allocate 60% of the bitrate to mid and 40% to side */
-                if( encControl->nChannels == 1 ) {
+            for( n = 0; n < encControl->nChannelsInternal; n++ ) {
+                if( encControl->nChannelsInternal == 1 ) {
                     channelRate_bps = TargetRate_bps;
-                } else if( n == 0 ) {
-                    channelRate_bps = SKP_RSHIFT( TargetRate_bps, 1 ) + 2000;
                 } else {
-                    channelRate_bps = SKP_RSHIFT( TargetRate_bps, 1 ) - 2000;
+                    channelRate_bps = MStargetRates_bps[ n ];
                 }
-                SKP_Silk_control_SNR( &psEnc->state_Fxx[ n ].sCmn, channelRate_bps );
-                if( ( ret = SKP_Silk_encode_frame_Fxx( &psEnc->state_Fxx[ n ], nBytesOut, psRangeEnc ) ) != 0 ) {
-                    SKP_assert( 0 );
+
+                if( channelRate_bps > 0 ) {
+                    silk_control_SNR( &psEnc->state_Fxx[ n ].sCmn, channelRate_bps );
+
+                    if( ( ret = silk_encode_frame_Fxx( &psEnc->state_Fxx[ n ], nBytesOut, psRangeEnc ) ) != 0 ) {
+                        SKP_assert( 0 );
+                    }
                 }
+
                 psEnc->state_Fxx[ n ].sCmn.controlled_since_last_payload = 0;
                 psEnc->state_Fxx[ n ].sCmn.inputBufIx = 0;
             }
@@ -331,7 +349,7 @@ SKP_int SKP_Silk_SDK_Encode(
             /* Insert VAD and FEC flags at beginning of bitstream */
             if( *nBytesOut > 0 ) {
                 flags = 0;
-                for( n = 0; n < encControl->nChannels; n++ ) {
+                for( n = 0; n < encControl->nChannelsInternal; n++ ) {
                     for( i = 0; i < psEnc->state_Fxx[ n ].sCmn.nFramesPerPacket; i++ ) {
                         flags  = SKP_LSHIFT( flags, 1 );
                         flags |= psEnc->state_Fxx[ n ].sCmn.VAD_flags[ i ];
@@ -339,10 +357,10 @@ SKP_int SKP_Silk_SDK_Encode(
                     flags  = SKP_LSHIFT( flags, 1 );
                     flags |= psEnc->state_Fxx[ n ].sCmn.LBRR_flag;
                 }
-                ec_enc_patch_initial_bits( psRangeEnc, flags, ( psEnc->state_Fxx[ 0 ].sCmn.nFramesPerPacket + 1 ) * encControl->nChannels );
+                ec_enc_patch_initial_bits( psRangeEnc, flags, ( psEnc->state_Fxx[ 0 ].sCmn.nFramesPerPacket + 1 ) * encControl->nChannelsInternal );
 
-                /* Return zero bytes if DTXed */
-                if( psEnc->state_Fxx[ 0 ].sCmn.inDTX && ( encControl->nChannels == 1 || psEnc->state_Fxx[ 1 ].sCmn.inDTX ) ) {
+                /* Return zero bytes if all channels DTXed */
+                if( psEnc->state_Fxx[ 0 ].sCmn.inDTX && ( encControl->nChannelsInternal == 1 || psEnc->state_Fxx[ 1 ].sCmn.inDTX ) ) {
                     *nBytesOut = 0;
                 }
 
@@ -351,8 +369,8 @@ SKP_int SKP_Silk_SDK_Encode(
                 psEnc->nBitsExceeded  = SKP_LIMIT( psEnc->nBitsExceeded, 0, 10000 );
 
                 /* Update flag indicating if bandwidth switching is allowed */
-                speech_act_thr_for_switch_Q8 = SKP_SMLAWB( SKP_FIX_CONST( SPEECH_ACTIVITY_DTX_THRES, 8 ), 
-                    SKP_FIX_CONST( ( 1 - SPEECH_ACTIVITY_DTX_THRES ) / MAX_BANDWIDTH_SWITCH_DELAY_MS, 16 + 8 ), psEnc->timeSinceSwitchAllowed_ms );
+                speech_act_thr_for_switch_Q8 = SKP_SMLAWB( SILK_FIX_CONST( SPEECH_ACTIVITY_DTX_THRES, 8 ), 
+                    SILK_FIX_CONST( ( 1 - SPEECH_ACTIVITY_DTX_THRES ) / MAX_BANDWIDTH_SWITCH_DELAY_MS, 16 + 8 ), psEnc->timeSinceSwitchAllowed_ms );
                 if( psEnc->state_Fxx[ 0 ].sCmn.speech_activity_Q8 < speech_act_thr_for_switch_Q8 ) {
                     psEnc->allowBandwidthSwitch = 1;
                     psEnc->timeSinceSwitchAllowed_ms = 0;
@@ -371,12 +389,13 @@ SKP_int SKP_Silk_SDK_Encode(
     }
 
     encControl->allowBandwidthSwitch = psEnc->allowBandwidthSwitch;
-    encControl->inWBmodeWithoutVariableLP = ( psEnc->state_Fxx[ 0 ].sCmn.fs_kHz == 16 ) && ( psEnc->state_Fxx[ 0 ].sCmn.sLP.mode == 0 );
+    encControl->inWBmodeWithoutVariableLP = psEnc->state_Fxx[ 0 ].sCmn.fs_kHz == 16 && psEnc->state_Fxx[ 0 ].sCmn.sLP.mode == 0;
     encControl->internalSampleRate = SKP_SMULBB( psEnc->state_Fxx[ 0 ].sCmn.fs_kHz, 1000 );
+    encControl->stereoWidth_Q14 = psEnc->sStereo.width_prev_Q14;
     if( prefillFlag ) {
         encControl->payloadSize_ms = tmp_payloadSize_ms;
         encControl->complexity = tmp_complexity;
-        for( n = 0; n < encControl->nChannels; n++ ) {
+        for( n = 0; n < encControl->nChannelsInternal; n++ ) {
             psEnc->state_Fxx[ n ].sCmn.controlled_since_last_payload = 0;
             psEnc->state_Fxx[ n ].sCmn.prefillFlag = 0;
         }
diff --git a/silk/SKP_Silk_encode_indices.c b/silk/silk_encode_indices.c
similarity index 86%
rename from silk/SKP_Silk_encode_indices.c
rename to silk/silk_encode_indices.c
index 71fc766c..39b8cbb3 100644
--- a/silk/SKP_Silk_encode_indices.c
+++ b/silk/silk_encode_indices.c
@@ -25,11 +25,11 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 /* Encode side-information parameters to payload */
-void SKP_Silk_encode_indices(
-    SKP_Silk_encoder_state      *psEncC,            /* I/O  Encoder state                               */
+void silk_encode_indices(
+    silk_encoder_state          *psEncC,            /* I/O  Encoder state                               */
     ec_enc                      *psRangeEnc,        /* I/O  Compressor data structure                   */
     SKP_int                     FrameIndex,         /* I    Frame number                                */
     SKP_int                     encode_LBRR         /* I    Flag indicating LBRR data is being encoded  */
@@ -65,9 +65,9 @@ void SKP_Silk_encode_indices(
     SKP_assert( typeOffset >= 0 && typeOffset < 6 );
     SKP_assert( encode_LBRR == 0 || typeOffset >= 2 );
     if( encode_LBRR || typeOffset >= 2 ) {
-        ec_enc_icdf( psRangeEnc, typeOffset - 2, SKP_Silk_type_offset_VAD_iCDF, 8 );
+        ec_enc_icdf( psRangeEnc, typeOffset - 2, silk_type_offset_VAD_iCDF, 8 );
     } else {
-        ec_enc_icdf( psRangeEnc, typeOffset, SKP_Silk_type_offset_no_VAD_iCDF, 8 );
+        ec_enc_icdf( psRangeEnc, typeOffset, silk_type_offset_no_VAD_iCDF, 8 );
     }
 
     /****************/
@@ -80,18 +80,18 @@ void SKP_Silk_encode_indices(
     if( condCoding ) {
         /* conditional coding */
         SKP_assert( psIndices->GainsIndices[ 0 ] >= 0 && psIndices->GainsIndices[ 0 ] < MAX_DELTA_GAIN_QUANT - MIN_DELTA_GAIN_QUANT + 1 );
-        ec_enc_icdf( psRangeEnc, psIndices->GainsIndices[ 0 ], SKP_Silk_delta_gain_iCDF, 8 );
+        ec_enc_icdf( psRangeEnc, psIndices->GainsIndices[ 0 ], silk_delta_gain_iCDF, 8 );
     } else {
         /* independent coding, in two stages: MSB bits followed by 3 LSBs */
         SKP_assert( psIndices->GainsIndices[ 0 ] >= 0 && psIndices->GainsIndices[ 0 ] < N_LEVELS_QGAIN );
-        ec_enc_icdf( psRangeEnc, SKP_RSHIFT( psIndices->GainsIndices[ 0 ], 3 ), SKP_Silk_gain_iCDF[ psIndices->signalType ], 8 );
-        ec_enc_icdf( psRangeEnc, psIndices->GainsIndices[ 0 ] & 7, SKP_Silk_uniform8_iCDF, 8 );
+        ec_enc_icdf( psRangeEnc, SKP_RSHIFT( psIndices->GainsIndices[ 0 ], 3 ), silk_gain_iCDF[ psIndices->signalType ], 8 );
+        ec_enc_icdf( psRangeEnc, psIndices->GainsIndices[ 0 ] & 7, silk_uniform8_iCDF, 8 );
     }
 
     /* remaining subframes */
     for( i = 1; i < psEncC->nb_subfr; i++ ) {
         SKP_assert( psIndices->GainsIndices[ i ] >= 0 && psIndices->GainsIndices[ i ] < MAX_DELTA_GAIN_QUANT - MIN_DELTA_GAIN_QUANT + 1 );
-        ec_enc_icdf( psRangeEnc, psIndices->GainsIndices[ i ], SKP_Silk_delta_gain_iCDF, 8 );
+        ec_enc_icdf( psRangeEnc, psIndices->GainsIndices[ i ], silk_delta_gain_iCDF, 8 );
     }
 
 #ifdef SAVE_ALL_INTERNAL_DATA
@@ -107,15 +107,15 @@ void SKP_Silk_encode_indices(
     nBytes_before = SKP_RSHIFT( ec_tell( psRangeEnc ) + 7, 3 );
 #endif
     ec_enc_icdf( psRangeEnc, psIndices->NLSFIndices[ 0 ], &psEncC->psNLSF_CB->CB1_iCDF[ ( psIndices->signalType >> 1 ) * psEncC->psNLSF_CB->nVectors ], 8 );
-    SKP_Silk_NLSF_unpack( ec_ix, pred_Q8, psEncC->psNLSF_CB, psIndices->NLSFIndices[ 0 ] );
+    silk_NLSF_unpack( ec_ix, pred_Q8, psEncC->psNLSF_CB, psIndices->NLSFIndices[ 0 ] );
     SKP_assert( psEncC->psNLSF_CB->order == psEncC->predictLPCOrder );
     for( i = 0; i < psEncC->psNLSF_CB->order; i++ ) {
         if( psIndices->NLSFIndices[ i+1 ] >= NLSF_QUANT_MAX_AMPLITUDE ) {
             ec_enc_icdf( psRangeEnc, 2 * NLSF_QUANT_MAX_AMPLITUDE, &psEncC->psNLSF_CB->ec_iCDF[ ec_ix[ i ] ], 8 );
-            ec_enc_icdf( psRangeEnc, psIndices->NLSFIndices[ i+1 ] - NLSF_QUANT_MAX_AMPLITUDE, SKP_Silk_NLSF_EXT_iCDF, 8 );
+            ec_enc_icdf( psRangeEnc, psIndices->NLSFIndices[ i+1 ] - NLSF_QUANT_MAX_AMPLITUDE, silk_NLSF_EXT_iCDF, 8 );
         } else if( psIndices->NLSFIndices[ i+1 ] <= -NLSF_QUANT_MAX_AMPLITUDE ) {
             ec_enc_icdf( psRangeEnc, 0, &psEncC->psNLSF_CB->ec_iCDF[ ec_ix[ i ] ], 8 );
-            ec_enc_icdf( psRangeEnc, -psIndices->NLSFIndices[ i+1 ] - NLSF_QUANT_MAX_AMPLITUDE, SKP_Silk_NLSF_EXT_iCDF, 8 );
+            ec_enc_icdf( psRangeEnc, -psIndices->NLSFIndices[ i+1 ] - NLSF_QUANT_MAX_AMPLITUDE, silk_NLSF_EXT_iCDF, 8 );
         } else {
             ec_enc_icdf( psRangeEnc, psIndices->NLSFIndices[ i+1 ] + NLSF_QUANT_MAX_AMPLITUDE, &psEncC->psNLSF_CB->ec_iCDF[ ec_ix[ i ] ], 8 );
         }
@@ -125,7 +125,7 @@ void SKP_Silk_encode_indices(
     if( psEncC->nb_subfr == MAX_NB_SUBFR ) {
         SKP_assert( psEncC->useInterpolatedNLSFs == 1 || psIndices->NLSFInterpCoef_Q2 == ( 1 << 2 ) );
         SKP_assert( psIndices->NLSFInterpCoef_Q2 >= 0 && psIndices->NLSFInterpCoef_Q2 < 5 );
-        ec_enc_icdf( psRangeEnc, psIndices->NLSFInterpCoef_Q2, SKP_Silk_NLSF_interpolation_factor_iCDF, 8 );
+        ec_enc_icdf( psRangeEnc, psIndices->NLSFInterpCoef_Q2, silk_NLSF_interpolation_factor_iCDF, 8 );
     }
 
 #ifdef SAVE_ALL_INTERNAL_DATA
@@ -155,7 +155,7 @@ void SKP_Silk_encode_indices(
                 encode_absolute_lagIndex = 0; /* Only use delta */
             }
             SKP_assert( delta_lagIndex >= 0 && delta_lagIndex < 21 );
-            ec_enc_icdf( psRangeEnc, delta_lagIndex, SKP_Silk_pitch_delta_iCDF, 8 );
+            ec_enc_icdf( psRangeEnc, delta_lagIndex, silk_pitch_delta_iCDF, 8 );
         }
         if( encode_absolute_lagIndex ) {
             /* Absolute encoding */
@@ -164,7 +164,7 @@ void SKP_Silk_encode_indices(
             pitch_low_bits = psIndices->lagIndex - SKP_SMULBB( pitch_high_bits, SKP_RSHIFT( psEncC->fs_kHz, 1 ) );
             SKP_assert( pitch_low_bits < psEncC->fs_kHz / 2 );
             SKP_assert( pitch_high_bits < 32 );
-            ec_enc_icdf( psRangeEnc, pitch_high_bits, SKP_Silk_pitch_lag_iCDF, 8 );
+            ec_enc_icdf( psRangeEnc, pitch_high_bits, silk_pitch_lag_iCDF, 8 );
             ec_enc_icdf( psRangeEnc, pitch_low_bits, psEncC->pitch_lag_low_bits_iCDF, 8 );
         }
         psEncC->ec_prevLagIndex = psIndices->lagIndex;
@@ -198,12 +198,12 @@ void SKP_Silk_encode_indices(
 
         /* PERIndex value */
         SKP_assert( psIndices->PERIndex >= 0 && psIndices->PERIndex < 3 );
-        ec_enc_icdf( psRangeEnc, psIndices->PERIndex, SKP_Silk_LTP_per_index_iCDF, 8 );
+        ec_enc_icdf( psRangeEnc, psIndices->PERIndex, silk_LTP_per_index_iCDF, 8 );
 
         /* Codebook Indices */
         for( k = 0; k < psEncC->nb_subfr; k++ ) {
             SKP_assert( psIndices->LTPIndex[ k ] >= 0 && psIndices->LTPIndex[ k ] < ( 8 << psIndices->PERIndex ) );
-            ec_enc_icdf( psRangeEnc, psIndices->LTPIndex[ k ], SKP_Silk_LTP_gain_iCDF_ptrs[ psIndices->PERIndex ], 8 );
+            ec_enc_icdf( psRangeEnc, psIndices->LTPIndex[ k ], silk_LTP_gain_iCDF_ptrs[ psIndices->PERIndex ], 8 );
         }
 
         /**********************/
@@ -211,7 +211,7 @@ void SKP_Silk_encode_indices(
         /**********************/
         if( !condCoding ) {
             SKP_assert( psIndices->LTP_scaleIndex >= 0 && psIndices->LTP_scaleIndex < 3 );
-            ec_enc_icdf( psRangeEnc, psIndices->LTP_scaleIndex, SKP_Silk_LTPscale_iCDF, 8 );
+            ec_enc_icdf( psRangeEnc, psIndices->LTP_scaleIndex, silk_LTPscale_iCDF, 8 );
         }
         SKP_assert( !condCoding || psIndices->LTP_scaleIndex == 0 );
 
@@ -242,5 +242,5 @@ void SKP_Silk_encode_indices(
     /* Encode seed */
     /***************/
     SKP_assert( psIndices->Seed >= 0 && psIndices->Seed < 4 );
-    ec_enc_icdf( psRangeEnc, psIndices->Seed, SKP_Silk_uniform4_iCDF, 8 );
+    ec_enc_icdf( psRangeEnc, psIndices->Seed, silk_uniform4_iCDF, 8 );
 }
diff --git a/silk/SKP_Silk_encode_pulses.c b/silk/silk_encode_pulses.c
similarity index 84%
rename from silk/SKP_Silk_encode_pulses.c
rename to silk/silk_encode_pulses.c
index 6fff9b95..16968319 100644
--- a/silk/SKP_Silk_encode_pulses.c
+++ b/silk/silk_encode_pulses.c
@@ -25,7 +25,7 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 /*********************************************/
 /* Encode quantization indices of excitation */
@@ -52,7 +52,7 @@ SKP_INLINE SKP_int combine_and_check(       /* return ok */
 }
 
 /* Encode quantization indices of excitation */
-void SKP_Silk_encode_pulses(
+void silk_encode_pulses(
     ec_enc                      *psRangeEnc,        /* I/O  compressor data structure                   */
     const SKP_int               signalType,         /* I    Sigtype                                     */
     const SKP_int               quantOffsetType,    /* I    quantOffsetType                             */
@@ -100,13 +100,13 @@ void SKP_Silk_encode_pulses(
 
         while( 1 ) {
             /* 1+1 -> 2 */
-            scale_down = combine_and_check( pulses_comb, abs_pulses_ptr, SKP_Silk_max_pulses_table[ 0 ], 8 );
+            scale_down = combine_and_check( pulses_comb, abs_pulses_ptr, silk_max_pulses_table[ 0 ], 8 );
             /* 2+2 -> 4 */
-            scale_down += combine_and_check( pulses_comb, pulses_comb, SKP_Silk_max_pulses_table[ 1 ], 4 );
+            scale_down += combine_and_check( pulses_comb, pulses_comb, silk_max_pulses_table[ 1 ], 4 );
             /* 4+4 -> 8 */
-            scale_down += combine_and_check( pulses_comb, pulses_comb, SKP_Silk_max_pulses_table[ 2 ], 2 );
+            scale_down += combine_and_check( pulses_comb, pulses_comb, silk_max_pulses_table[ 2 ], 2 );
             /* 8+8 -> 16 */
-            scale_down += combine_and_check( &sum_pulses[ i ], pulses_comb, SKP_Silk_max_pulses_table[ 3 ], 1 );
+            scale_down += combine_and_check( &sum_pulses[ i ], pulses_comb, silk_max_pulses_table[ 3 ], 1 );
 
             if( scale_down ) {
                 /* We need to downscale the quantization signal */
@@ -128,8 +128,8 @@ void SKP_Silk_encode_pulses(
     /* find rate level that leads to fewest bits for coding of pulses per block info */
     minSumBits_Q5 = SKP_int32_MAX;
     for( k = 0; k < N_RATE_LEVELS - 1; k++ ) {
-        nBits_ptr  = SKP_Silk_pulses_per_block_BITS_Q5[ k ];
-        sumBits_Q5 = SKP_Silk_rate_levels_BITS_Q5[ signalType >> 1 ][ k ];
+        nBits_ptr  = silk_pulses_per_block_BITS_Q5[ k ];
+        sumBits_Q5 = silk_rate_levels_BITS_Q5[ signalType >> 1 ][ k ];
         for( i = 0; i < iter; i++ ) {
             if( nRshifts[ i ] > 0 ) {
                 sumBits_Q5 += nBits_ptr[ MAX_PULSES + 1 ];
@@ -142,21 +142,21 @@ void SKP_Silk_encode_pulses(
             RateLevelIndex = k;
         }
     }
-    ec_enc_icdf( psRangeEnc, RateLevelIndex, SKP_Silk_rate_levels_iCDF[ signalType >> 1 ], 8 );
+    ec_enc_icdf( psRangeEnc, RateLevelIndex, silk_rate_levels_iCDF[ signalType >> 1 ], 8 );
 
     /***************************************************/
     /* Sum-Weighted-Pulses Encoding                    */
     /***************************************************/
-    cdf_ptr = SKP_Silk_pulses_per_block_iCDF[ RateLevelIndex ];
+    cdf_ptr = silk_pulses_per_block_iCDF[ RateLevelIndex ];
     for( i = 0; i < iter; i++ ) {
         if( nRshifts[ i ] == 0 ) {
             ec_enc_icdf( psRangeEnc, sum_pulses[ i ], cdf_ptr, 8 );
         } else {
             ec_enc_icdf( psRangeEnc, MAX_PULSES + 1, cdf_ptr, 8 );
             for( k = 0; k < nRshifts[ i ] - 1; k++ ) {
-                ec_enc_icdf( psRangeEnc, MAX_PULSES + 1, SKP_Silk_pulses_per_block_iCDF[ N_RATE_LEVELS - 1 ], 8 );
+                ec_enc_icdf( psRangeEnc, MAX_PULSES + 1, silk_pulses_per_block_iCDF[ N_RATE_LEVELS - 1 ], 8 );
             }
-            ec_enc_icdf( psRangeEnc, sum_pulses[ i ], SKP_Silk_pulses_per_block_iCDF[ N_RATE_LEVELS - 1 ], 8 );
+            ec_enc_icdf( psRangeEnc, sum_pulses[ i ], silk_pulses_per_block_iCDF[ N_RATE_LEVELS - 1 ], 8 );
         }
     }
 
@@ -165,7 +165,7 @@ void SKP_Silk_encode_pulses(
     /******************/
     for( i = 0; i < iter; i++ ) {
         if( sum_pulses[ i ] > 0 ) {
-            SKP_Silk_shell_encoder( psRangeEnc, &abs_pulses[ i * SHELL_CODEC_FRAME_LENGTH ] );
+            silk_shell_encoder( psRangeEnc, &abs_pulses[ i * SHELL_CODEC_FRAME_LENGTH ] );
         }
     }
 
@@ -180,18 +180,16 @@ void SKP_Silk_encode_pulses(
                 abs_q = (SKP_int8)SKP_abs( pulses_ptr[ k ] );
                 for( j = nLS; j > 0; j-- ) {
                     bit = SKP_RSHIFT( abs_q, j ) & 1;
-                    ec_enc_icdf( psRangeEnc, bit, SKP_Silk_lsb_iCDF, 8 );
+                    ec_enc_icdf( psRangeEnc, bit, silk_lsb_iCDF, 8 );
                 }
                 bit = abs_q & 1;
-                ec_enc_icdf( psRangeEnc, bit, SKP_Silk_lsb_iCDF, 8 );
+                ec_enc_icdf( psRangeEnc, bit, silk_lsb_iCDF, 8 );
             }
         }
     }
 
-#if! USE_CELT_PVQ
     /****************/
     /* Encode signs */
     /****************/
-    SKP_Silk_encode_signs( psRangeEnc, pulses, frame_length, signalType, quantOffsetType, sum_pulses );
-#endif
+    silk_encode_signs( psRangeEnc, pulses, frame_length, signalType, quantOffsetType, sum_pulses );
 }
diff --git a/silk/SKP_Silk_errors.h b/silk/silk_errors.h
similarity index 71%
rename from silk/SKP_Silk_errors.h
rename to silk/silk_errors.h
index b7f194fa..f27dcc7f 100644
--- a/silk/SKP_Silk_errors.h
+++ b/silk/silk_errors.h
@@ -25,8 +25,8 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#ifndef SKP_SILK_ERRORS_H
-#define SKP_SILK_ERRORS_H
+#ifndef SILK_ERRORS_H
+#define SILK_ERRORS_H
 
 #ifdef __cplusplus
 extern "C"
@@ -36,60 +36,60 @@ extern "C"
 /******************/
 /* Error messages */
 /******************/
-#define SKP_SILK_NO_ERROR                               0
+#define SILK_NO_ERROR                               0
 
 /**************************/
 /* Encoder error messages */
 /**************************/
 
 /* Input length is not a multiple of 10 ms, or length is longer than the packet length */
-#define SKP_SILK_ENC_INPUT_INVALID_NO_OF_SAMPLES        -101
+#define SILK_ENC_INPUT_INVALID_NO_OF_SAMPLES        -101
 
 /* Sampling frequency not 8000, 12000 or 16000 Hertz */
-#define SKP_SILK_ENC_FS_NOT_SUPPORTED                   -102
+#define SILK_ENC_FS_NOT_SUPPORTED                   -102
 
 /* Packet size not 10, 20, 40, or 60 ms */
-#define SKP_SILK_ENC_PACKET_SIZE_NOT_SUPPORTED          -103
+#define SILK_ENC_PACKET_SIZE_NOT_SUPPORTED          -103
 
 /* Allocated payload buffer too short */
-#define SKP_SILK_ENC_PAYLOAD_BUF_TOO_SHORT              -104
+#define SILK_ENC_PAYLOAD_BUF_TOO_SHORT              -104
 
 /* Loss rate not between 0 and 100 percent */
-#define SKP_SILK_ENC_INVALID_LOSS_RATE                  -105
+#define SILK_ENC_INVALID_LOSS_RATE                  -105
 
 /* Complexity setting not valid, use 0...10 */
-#define SKP_SILK_ENC_INVALID_COMPLEXITY_SETTING         -106
+#define SILK_ENC_INVALID_COMPLEXITY_SETTING         -106
 
 /* Inband FEC setting not valid, use 0 or 1 */
-#define SKP_SILK_ENC_INVALID_INBAND_FEC_SETTING         -107
+#define SILK_ENC_INVALID_INBAND_FEC_SETTING         -107
 
 /* DTX setting not valid, use 0 or 1 */
-#define SKP_SILK_ENC_INVALID_DTX_SETTING                -108
+#define SILK_ENC_INVALID_DTX_SETTING                -108
 
 /* CBR setting not valid, use 0 or 1 */
-#define SKP_SILK_ENC_INVALID_CBR_SETTING                -109
+#define SILK_ENC_INVALID_CBR_SETTING                -109
 
 /* Internal encoder error */
-#define SKP_SILK_ENC_INTERNAL_ERROR                     -110
+#define SILK_ENC_INTERNAL_ERROR                     -110
 
 /* Internal encoder error */
-#define SKP_SILK_ENC_INVALID_NUMBER_OF_CHANNELS_ERROR   -111
+#define SILK_ENC_INVALID_NUMBER_OF_CHANNELS_ERROR   -111
 
 /**************************/
 /* Decoder error messages */
 /**************************/
 
 /* Output sampling frequency lower than internal decoded sampling frequency */
-#define SKP_SILK_DEC_INVALID_SAMPLING_FREQUENCY         -200
+#define SILK_DEC_INVALID_SAMPLING_FREQUENCY         -200
 
 /* Payload size exceeded the maximum allowed 1024 bytes */
-#define SKP_SILK_DEC_PAYLOAD_TOO_LARGE                  -201
+#define SILK_DEC_PAYLOAD_TOO_LARGE                  -201
 
 /* Payload has bit errors */
-#define SKP_SILK_DEC_PAYLOAD_ERROR                      -202
+#define SILK_DEC_PAYLOAD_ERROR                      -202
 
 /* Payload has bit errors */
-#define SKP_SILK_DEC_INVALID_FRAME_SIZE                 -203
+#define SILK_DEC_INVALID_FRAME_SIZE                 -203
 
 #ifdef __cplusplus
 }
diff --git a/silk/SKP_Silk_gain_quant.c b/silk/silk_gain_quant.c
similarity index 90%
rename from silk/SKP_Silk_gain_quant.c
rename to silk/silk_gain_quant.c
index 101ecbd6..0ce7dbde 100644
--- a/silk/SKP_Silk_gain_quant.c
+++ b/silk/silk_gain_quant.c
@@ -25,14 +25,14 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 #define OFFSET                  ( ( MIN_QGAIN_DB * 128 ) / 6 + 16 * 128 )
 #define SCALE_Q16               ( ( 65536 * ( N_LEVELS_QGAIN - 1 ) ) / ( ( ( MAX_QGAIN_DB - MIN_QGAIN_DB ) * 128 ) / 6 ) )
 #define INV_SCALE_Q16           ( ( 65536 * ( ( ( MAX_QGAIN_DB - MIN_QGAIN_DB ) * 128 ) / 6 ) ) / ( N_LEVELS_QGAIN - 1 ) )
 
 /* Gain scalar quantization with hysteresis, uniform on log scale */
-void SKP_Silk_gains_quant(
+void silk_gains_quant(
     SKP_int8                        ind[ MAX_NB_SUBFR ],        /* O    gain indices                            */
     SKP_int32                       gain_Q16[ MAX_NB_SUBFR ],   /* I/O  gains (quantized out)                   */
     SKP_int8                        *prev_ind,                  /* I/O  last index in previous frame            */
@@ -44,7 +44,7 @@ void SKP_Silk_gains_quant(
 
     for( k = 0; k < nb_subfr; k++ ) {
         /* Add half of previous quantization error, convert to log scale, scale, floor() */
-        ind[ k ] = SKP_SMULWB( SCALE_Q16, SKP_Silk_lin2log( gain_Q16[ k ] ) - OFFSET );
+        ind[ k ] = SKP_SMULWB( SCALE_Q16, silk_lin2log( gain_Q16[ k ] ) - OFFSET );
 
         /* Round towards previous quantized gain (hysteresis) */
         if( ind[ k ] < *prev_ind ) {
@@ -81,12 +81,12 @@ void SKP_Silk_gains_quant(
         }
 
         /* Convert to linear scale and scale */
-        gain_Q16[ k ] = SKP_Silk_log2lin( SKP_min_32( SKP_SMULWB( INV_SCALE_Q16, *prev_ind ) + OFFSET, 3967 ) ); /* 3967 = 31 in Q7 */
+        gain_Q16[ k ] = silk_log2lin( SKP_min_32( SKP_SMULWB( INV_SCALE_Q16, *prev_ind ) + OFFSET, 3967 ) ); /* 3967 = 31 in Q7 */
     }
 }
 
 /* Gains scalar dequantization, uniform on log scale */
-void SKP_Silk_gains_dequant(
+void silk_gains_dequant(
     SKP_int32                       gain_Q16[ MAX_NB_SUBFR ],   /* O    quantized gains                         */
     const SKP_int8                  ind[ MAX_NB_SUBFR ],        /* I    gain indices                            */
     SKP_int8                        *prev_ind,                  /* I/O  last index in previous frame            */
@@ -111,8 +111,9 @@ void SKP_Silk_gains_dequant(
                 *prev_ind += ind_tmp;
             }
         }
+        *prev_ind = SKP_min( *prev_ind, N_LEVELS_QGAIN - 1 );
 
         /* Convert to linear scale and scale */
-        gain_Q16[ k ] = SKP_Silk_log2lin( SKP_min_32( SKP_SMULWB( INV_SCALE_Q16, *prev_ind ) + OFFSET, 3967 ) ); /* 3967 = 31 in Q7 */
+        gain_Q16[ k ] = silk_log2lin( SKP_min_32( SKP_SMULWB( INV_SCALE_Q16, *prev_ind ) + OFFSET, 3967 ) ); /* 3967 = 31 in Q7 */
     }
 }
diff --git a/silk/SKP_Silk_init_encoder.c b/silk/silk_init_encoder.c
similarity index 75%
rename from silk/SKP_Silk_init_encoder.c
rename to silk/silk_init_encoder.c
index c0c40458..7ef5867d 100644
--- a/silk/SKP_Silk_init_encoder.c
+++ b/silk/silk_init_encoder.c
@@ -25,37 +25,34 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
 #ifdef FIXED_POINT
-#include "SKP_Silk_main_FIX.h"
-#define SKP_Silk_encoder_state_Fxx      SKP_Silk_encoder_state_FIX
+#include "silk_main_FIX.h"
 #else
-#include "SKP_Silk_main_FLP.h"
-#define SKP_Silk_encoder_state_Fxx      SKP_Silk_encoder_state_FLP
+#include "silk_main_FLP.h"
 #endif
+#include "silk_tuning_parameters.h"
 
 /*********************************/
 /* Initialize Silk Encoder state */
 /*********************************/
-SKP_int SKP_Silk_init_encoder(
-    SKP_Silk_encoder_state_Fxx  *psEnc          /* I/O  Pointer to Silk encoder state               */
+SKP_int silk_init_encoder(
+    silk_encoder_state_Fxx  *psEnc          /* I/O  Pointer to Silk encoder state               */
 ) {
     SKP_int ret = 0;
 
     /* Clear the entire encoder state */
-    SKP_memset( psEnc, 0, sizeof( SKP_Silk_encoder_state_Fxx ) );
+    SKP_memset( psEnc, 0, sizeof( silk_encoder_state_Fxx ) );
 
-    psEnc->sCmn.variable_HP_smth1_Q15 = 200844; /* = SKP_Silk_log2(70)_Q0; */
-    psEnc->sCmn.variable_HP_smth2_Q15 = 200844; /* = SKP_Silk_log2(70)_Q0; */
+    psEnc->sCmn.inputBuf = &psEnc->sCmn.inputBuf__[ 2 ];
+
+    psEnc->sCmn.variable_HP_smth1_Q15 = SKP_LSHIFT( silk_lin2log( SILK_FIX_CONST( VARIABLE_HP_MIN_CUTOFF_HZ, 16 ) ) - ( 16 << 7 ), 8 );
+    psEnc->sCmn.variable_HP_smth2_Q15 = psEnc->sCmn.variable_HP_smth1_Q15;
 
     /* Used to deactivate LSF interpolation, fluctuation reduction, pitch prediction */
     psEnc->sCmn.first_frame_after_reset = 1;
 
     /* Initialize Silk VAD */
-    ret += SKP_Silk_VAD_Init( &psEnc->sCmn.sVAD );
+    ret += silk_VAD_Init( &psEnc->sCmn.sVAD );
 
     return( ret );
 }
diff --git a/silk/SKP_Silk_inner_prod_aligned.c b/silk/silk_inner_prod_aligned.c
similarity index 93%
rename from silk/SKP_Silk_inner_prod_aligned.c
rename to silk/silk_inner_prod_aligned.c
index cc0364fe..34988e87 100644
--- a/silk/SKP_Silk_inner_prod_aligned.c
+++ b/silk/silk_inner_prod_aligned.c
@@ -25,7 +25,7 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
 /* sum= for(i=0;i<len;i++)inVec1[i]*inVec2[i];      ---        inner product    */
 /* Note for ARM asm:                                                            */
@@ -33,7 +33,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /*        * len should be positive 16bit integer.                               */
 /*        * only when len>6, memory access can be reduced by half.              */
 
-SKP_int32 SKP_Silk_inner_prod_aligned(
+SKP_int32 silk_inner_prod_aligned(
     const SKP_int16 *const  inVec1,     /*    I input vector 1    */
     const SKP_int16 *const  inVec2,     /*    I input vector 2    */
     const SKP_int           len         /*    I vector lengths    */
@@ -47,7 +47,7 @@ SKP_int32 SKP_Silk_inner_prod_aligned(
     return sum;
 }
 
-SKP_int32 SKP_Silk_inner_prod_aligned_scale(
+SKP_int32 silk_inner_prod_aligned_scale(
     const SKP_int16 *const  inVec1,     /*    I input vector 1          */
     const SKP_int16 *const  inVec2,     /*    I input vector 2          */
     const SKP_int           scale,      /*    I number of bits to shift */
@@ -62,7 +62,7 @@ SKP_int32 SKP_Silk_inner_prod_aligned_scale(
     return sum;
 }
 
-SKP_int64 SKP_Silk_inner_prod16_aligned_64(
+SKP_int64 silk_inner_prod16_aligned_64(
     const SKP_int16         *inVec1,    /*    I input vector 1    */ 
     const SKP_int16         *inVec2,    /*    I input vector 2    */
     const SKP_int           len         /*    I vector lengths    */
diff --git a/silk/SKP_Silk_interpolate.c b/silk/silk_interpolate.c
similarity index 96%
rename from silk/SKP_Silk_interpolate.c
rename to silk/silk_interpolate.c
index aee9eff0..ba510cfe 100644
--- a/silk/SKP_Silk_interpolate.c
+++ b/silk/silk_interpolate.c
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 /* Interpolate two vectors */
-void SKP_Silk_interpolate(
+void silk_interpolate(
     SKP_int16                       xi[ MAX_LPC_ORDER ],    /* O    interpolated vector                     */
     const SKP_int16                 x0[ MAX_LPC_ORDER ],    /* I    first vector                            */
     const SKP_int16                 x1[ MAX_LPC_ORDER ],    /* I    second vector                           */
diff --git a/silk/SKP_Silk_k2a.c b/silk/silk_k2a.c
similarity index 94%
rename from silk/SKP_Silk_k2a.c
rename to silk/silk_k2a.c
index b639ba31..c6989f2c 100644
--- a/silk/SKP_Silk_k2a.c
+++ b/silk/silk_k2a.c
@@ -25,17 +25,17 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
 /* Step up function, converts reflection coefficients to prediction coefficients */
-void SKP_Silk_k2a(
+void silk_k2a(
     SKP_int32            *A_Q24,                 /* O:    Prediction coefficients [order] Q24         */
     const SKP_int16      *rc_Q15,                /* I:    Reflection coefficients [order] Q15         */
     const SKP_int32      order                   /* I:    Prediction order                            */
 )
 {
     SKP_int   k, n;
-    SKP_int32 Atmp[ SKP_Silk_MAX_ORDER_LPC ];
+    SKP_int32 Atmp[ SILK_MAX_ORDER_LPC ];
 
     for( k = 0; k < order; k++ ) {
         for( n = 0; n < k; n++ ) {
diff --git a/silk/SKP_Silk_k2a_Q16.c b/silk/silk_k2a_Q16.c
similarity index 94%
rename from silk/SKP_Silk_k2a_Q16.c
rename to silk/silk_k2a_Q16.c
index 73ae6f07..f2cde25c 100644
--- a/silk/SKP_Silk_k2a_Q16.c
+++ b/silk/silk_k2a_Q16.c
@@ -25,17 +25,17 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
 /* Step up function, converts reflection coefficients to prediction coefficients */
-void SKP_Silk_k2a_Q16(
+void silk_k2a_Q16(
     SKP_int32            *A_Q24,                 /* O:    Prediction coefficients [order] Q24         */
     const SKP_int32      *rc_Q16,                /* I:    Reflection coefficients [order] Q16         */
     const SKP_int32      order                   /* I:    Prediction order                            */
 )
 {
     SKP_int   k, n;
-    SKP_int32 Atmp[ SKP_Silk_MAX_ORDER_LPC ];
+    SKP_int32 Atmp[ SILK_MAX_ORDER_LPC ];
 
     for( k = 0; k < order; k++ ) {
         for( n = 0; n < k; n++ ) {
diff --git a/silk/SKP_Silk_lin2log.c b/silk/silk_lin2log.c
similarity index 90%
rename from silk/SKP_Silk_lin2log.c
rename to silk/silk_lin2log.c
index c6241c53..ddee11c0 100644
--- a/silk/SKP_Silk_lin2log.c
+++ b/silk/silk_lin2log.c
@@ -25,14 +25,14 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 /* Approximation of 128 * log2() (very close inverse of approx 2^() below) */
 /* Convert input to a log scale    */ 
-SKP_int32 SKP_Silk_lin2log( const SKP_int32 inLin )    /* I:    Input in linear scale */
+SKP_int32 silk_lin2log( const SKP_int32 inLin )    /* I:    Input in linear scale */
 {
     SKP_int32 lz, frac_Q7;
 
-    SKP_Silk_CLZ_FRAC( inLin, &lz, &frac_Q7 );
+    silk_CLZ_FRAC( inLin, &lz, &frac_Q7 );
 
     /* Piece-wise parabolic approximation */
     return( SKP_LSHIFT( 31 - lz, 7 ) + SKP_SMLAWB( frac_Q7, SKP_MUL( frac_Q7, 128 - frac_Q7 ), 179 ) );
diff --git a/silk/SKP_Silk_log2lin.c b/silk/silk_log2lin.c
similarity index 90%
rename from silk/SKP_Silk_log2lin.c
rename to silk/silk_log2lin.c
index 50d02d8b..f6be92eb 100644
--- a/silk/SKP_Silk_log2lin.c
+++ b/silk/silk_log2lin.c
@@ -25,11 +25,11 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
-/* Approximation of 2^() (very close inverse of SKP_Silk_lin2log()) */
+/* Approximation of 2^() (very close inverse of silk_lin2log()) */
 /* Convert input to a linear scale    */ 
-SKP_int32 SKP_Silk_log2lin( const SKP_int32 inLog_Q7 )    /* I:    Input on log scale */ 
+SKP_int32 silk_log2lin( const SKP_int32 inLog_Q7 )    /* I:    Input on log scale */ 
 {
     SKP_int32 out, frac_Q7;
 
diff --git a/silk/SKP_Silk_macros.h b/silk/silk_macros.h
similarity index 93%
rename from silk/SKP_Silk_macros.h
rename to silk/silk_macros.h
index 406781ed..ec022531 100644
--- a/silk/SKP_Silk_macros.h
+++ b/silk/silk_macros.h
@@ -25,8 +25,8 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#ifndef _SKP_SILK_API_C_H_
-#define _SKP_SILK_API_C_H_
+#ifndef _SILK_API_C_H_
+#define _SILK_API_C_H_
 
 // This is an inline header file for general platform.
 
@@ -72,7 +72,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                                         (( (a) & ((b)^0x80000000) & 0x80000000) ? SKP_int32_MIN : (a)-(b)) :    \
                                         ((((a)^0x80000000) & (b)  & 0x80000000) ? SKP_int32_MAX : (a)-(b)) )
     
-SKP_INLINE SKP_int32 SKP_Silk_CLZ16(SKP_int16 in16)
+SKP_INLINE SKP_int32 silk_CLZ16(SKP_int16 in16)
 {
     SKP_int32 out32 = 0;
     if( in16 == 0 ) {
@@ -108,13 +108,13 @@ SKP_INLINE SKP_int32 SKP_Silk_CLZ16(SKP_int16 in16)
     }
 }
 
-SKP_INLINE SKP_int32 SKP_Silk_CLZ32(SKP_int32 in32)
+SKP_INLINE SKP_int32 silk_CLZ32(SKP_int32 in32)
 {
     /* test highest 16 bits and convert to SKP_int16 */
     if( in32 & 0xFFFF0000 ) {
-        return SKP_Silk_CLZ16((SKP_int16)(in32 >> 16));
+        return silk_CLZ16((SKP_int16)(in32 >> 16));
     } else {
-        return SKP_Silk_CLZ16((SKP_int16)in32) + 16;
+        return silk_CLZ16((SKP_int16)in32) + 16;
     }
 }
 
@@ -128,5 +128,5 @@ SKP_INLINE SKP_int32 SKP_Silk_CLZ32(SKP_int32 in32)
 #endif
 #define matrix_c_adr(Matrix_base_adr, row, column, M)        (Matrix_base_adr + ((row)+(M)*(column)))
 
-#endif //_SKP_SILK_API_C_H_
+#endif //_SILK_API_C_H_
 
diff --git a/silk/SKP_Silk_main.h b/silk/silk_main.h
similarity index 79%
rename from silk/SKP_Silk_main.h
rename to silk/silk_main.h
index f80cc805..582fede3 100644
--- a/silk/SKP_Silk_main.h
+++ b/silk/silk_main.h
@@ -25,21 +25,21 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#ifndef SKP_SILK_MAIN_H
-#define SKP_SILK_MAIN_H
+#ifndef SILK_MAIN_H
+#define SILK_MAIN_H
 
 #ifdef __cplusplus
 extern "C"
 {
 #endif
 
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_define.h"
-#include "SKP_Silk_structs.h"
-#include "SKP_Silk_tables.h"
-#include "SKP_Silk_PLC.h"
-#include "SKP_Silk_control.h"
-#include "SKP_debug.h"
+#include "silk_SigProc_FIX.h"
+#include "silk_define.h"
+#include "silk_structs.h"
+#include "silk_tables.h"
+#include "silk_PLC.h"
+#include "silk_control.h"
+#include "silk_debug.h"
 #include "entenc.h"
 #include "entdec.h"
 
@@ -51,18 +51,21 @@ extern "C"
 
 
 /* Convert Left/Right stereo signal to adaptive Mid/Side representation */
-void SKP_Silk_stereo_LR_to_MS( 
-    ec_enc              *psRangeEnc,                    /* I/O  Compressor data structure                   */
-    stereo_state        *state,                         /* I/O  State                                       */
+void silk_stereo_LR_to_MS( 
+    stereo_enc_state    *state,                         /* I/O  State                                       */
     SKP_int16           x1[],                           /* I/O  Left input signal, becomes mid signal       */
     SKP_int16           x2[],                           /* I/O  Right input signal, becomes side signal     */
-    SKP_int             fs_kHz,                         /* I    Samples rate (kHz)                          */
+    SKP_int8            ix[ 2 ][ 4 ],                   /* O    Quantization indices                        */
+    SKP_int32           mid_side_rates_bps[],           /* O    Bitrates for mid and side signals           */
+    SKP_int32           total_rate_bps,                 /* I    Total bitrate                               */
+    SKP_int             prev_speech_act_Q8,             /* I    Speech activity level in previous frame     */
+    SKP_int             fs_kHz,                         /* I    Sample rate (kHz)                           */
     SKP_int             frame_length                    /* I    Number of samples                           */
 );
 
 /* Convert adaptive Mid/Side representation to Left/Right stereo signal */
-void SKP_Silk_stereo_MS_to_LR( 
-    stereo_state        *state,                         /* I/O  State                                       */
+void silk_stereo_MS_to_LR( 
+    stereo_dec_state    *state,                         /* I/O  State                                       */
     SKP_int16           x1[],                           /* I/O  Left input signal, becomes mid signal       */
     SKP_int16           x2[],                           /* I/O  Right input signal, becomes side signal     */
     const SKP_int32     pred_Q13[],                     /* I    Predictors                                  */
@@ -71,26 +74,37 @@ void SKP_Silk_stereo_MS_to_LR(
 );
 
 /* Find least-squares prediction gain for one signal based on another and quantize it */
-SKP_int32 SKP_Silk_stereo_find_predictor(               /* O    Returns predictor in Q13                    */
+SKP_int32 silk_stereo_find_predictor(                   /* O    Returns predictor in Q13                    */
+    SKP_int32           *ratio_Q14,                     /* O    Ratio of residual and mid energies          */
     const SKP_int16     x[],                            /* I    Basis signal                                */
     const SKP_int16     y[],                            /* I    Target signal                               */
-    SKP_int             length                          /* I    Number of samples                           */
+    SKP_int32           mid_res_amp_Q0[],               /* I/O  Smoothed mid, residual norms                */
+    SKP_int             length,                         /* I    Number of samples                           */
+    SKP_int             smooth_coef_Q16                 /* I    Smoothing coefficient                       */
 );
 
-/* Quantize mid/side predictors and entropy code the quantization indices */
-void SKP_Silk_stereo_encode_pred(
+/* Quantize mid/side predictors */
+void silk_stereo_quant_pred(
+    stereo_enc_state    *state,                         /* I/O  State                                       */
+    SKP_int32           pred_Q13[],                     /* I/O  Predictors (out: quantized)                 */
+    SKP_int8            ix[ 2 ][ 4 ]                    /* O    Quantization indices                        */
+);
+
+/* Entropy code the mid/side quantization indices */
+void silk_stereo_encode_pred(
     ec_enc              *psRangeEnc,                    /* I/O  Compressor data structure                   */
-    SKP_int32           pred_Q13[]                      /* I/O  Predictors (out: quantized)                 */
+    SKP_int8            ix[ 2 ][ 4 ]                    /* I    Quantization indices                        */
 );
 
 /* Decode mid/side predictors */
-void SKP_Silk_stereo_decode_pred(
+void silk_stereo_decode_pred(
     ec_dec              *psRangeDec,                    /* I/O  Compressor data structure                   */
+    SKP_int             *decode_only_mid,               /* O    Flag that only mid channel has been coded   */
     SKP_int32           pred_Q13[]                      /* O    Predictors                                  */
 );
 
 /* Encodes signs of excitation */
-void SKP_Silk_encode_signs(
+void silk_encode_signs(
     ec_enc                      *psRangeEnc,                        /* I/O  Compressor data structure                   */
     const SKP_int8              pulses[],                           /* I    pulse signal                                */
     SKP_int                     length,                             /* I    length of input                             */
@@ -100,7 +114,7 @@ void SKP_Silk_encode_signs(
 );
 
 /* Decodes signs of excitation */
-void SKP_Silk_decode_signs(
+void silk_decode_signs(
     ec_dec                      *psRangeDec,                        /* I/O  Compressor data structure                   */
     SKP_int                     pulses[],                           /* I/O  pulse signal                                */
     SKP_int                     length,                             /* I    length of input                             */
@@ -111,17 +125,17 @@ void SKP_Silk_decode_signs(
 
 /* Check encoder control struct */
 SKP_int check_control_input( 
-    SKP_SILK_SDK_EncControlStruct        *encControl     /* I:   Control structure                               */
+    silk_EncControlStruct        *encControl     /* I:   Control structure                               */
 );
 
 /* Control internal sampling rate */
-SKP_int SKP_Silk_control_audio_bandwidth(
-    SKP_Silk_encoder_state      *psEncC             /* I/O  Pointer to Silk encoder state               */
+SKP_int silk_control_audio_bandwidth(
+    silk_encoder_state          *psEncC             /* I/O  Pointer to Silk encoder state               */
 );
 
 /* Control SNR of redidual quantizer */
-SKP_int SKP_Silk_control_SNR(
-    SKP_Silk_encoder_state      *psEncC,            /* I/O  Pointer to Silk encoder state               */
+SKP_int silk_control_SNR(
+    silk_encoder_state          *psEncC,            /* I/O  Pointer to Silk encoder state               */
     SKP_int32                   TargetRate_bps      /* I    Target max bitrate (bps)                    */
 );
 
@@ -130,7 +144,7 @@ SKP_int SKP_Silk_control_SNR(
 /***************/
 
 /* Encode quantization indices of excitation */
-void SKP_Silk_encode_pulses(
+void silk_encode_pulses(
     ec_enc                      *psRangeEnc,        /* I/O  compressor data structure                   */
     const SKP_int               signalType,         /* I    Signal type                                 */
     const SKP_int               quantOffsetType,    /* I    quantOffsetType                             */
@@ -139,20 +153,20 @@ void SKP_Silk_encode_pulses(
 );
 
 /* Shell encoder, operates on one shell code frame of 16 pulses */
-void SKP_Silk_shell_encoder(
+void silk_shell_encoder(
     ec_enc                      *psRangeEnc,        /* I/O  compressor data structure                   */
     const SKP_int               *pulses0            /* I    data: nonnegative pulse amplitudes          */
 );
 
 /* Shell decoder, operates on one shell code frame of 16 pulses */
-void SKP_Silk_shell_decoder(
+void silk_shell_decoder(
     SKP_int                     *pulses0,           /* O    data: nonnegative pulse amplitudes          */
     ec_dec                      *psRangeDec,        /* I/O  Compressor data structure                   */
     const SKP_int               pulses4             /* I    number of pulses per pulse-subframe         */
 );
 
 /* Gain scalar quantization with hysteresis, uniform on log scale */
-void SKP_Silk_gains_quant(
+void silk_gains_quant(
     SKP_int8                        ind[ MAX_NB_SUBFR ],        /* O    gain indices                            */
     SKP_int32                       gain_Q16[ MAX_NB_SUBFR ],   /* I/O  gains (quantized out)                   */
     SKP_int8                        *prev_ind,                  /* I/O  last index in previous frame            */
@@ -161,7 +175,7 @@ void SKP_Silk_gains_quant(
 );
 
 /* Gains scalar dequantization, uniform on log scale */
-void SKP_Silk_gains_dequant(
+void silk_gains_dequant(
     SKP_int32                       gain_Q16[ MAX_NB_SUBFR ],   /* O    quantized gains                         */
     const SKP_int8                  ind[ MAX_NB_SUBFR ],        /* I    gain indices                            */
     SKP_int8                        *prev_ind,                  /* I/O  last index in previous frame            */
@@ -170,14 +184,14 @@ void SKP_Silk_gains_dequant(
 );
 
 /* Convert NLSF parameters to stable AR prediction filter coefficients */
-void SKP_Silk_NLSF2A_stable(
-    SKP_int16                   pAR_Q12[ MAX_LPC_ORDER ],   /* O    Stabilized AR coefs [LPC_order]     */ 
-    const SKP_int16             pNLSF[ MAX_LPC_ORDER ],     /* I    NLSF vector         [LPC_order]     */
-    const SKP_int               LPC_order                   /* I    LPC/LSF order                       */
+void silk_NLSF2A_stable(
+    SKP_int16                       pAR_Q12[ MAX_LPC_ORDER ],   /* O    Stabilized AR coefs [LPC_order]     */ 
+    const SKP_int16                 pNLSF[ MAX_LPC_ORDER ],     /* I    NLSF vector         [LPC_order]     */
+    const SKP_int                   LPC_order                   /* I    LPC/LSF order                       */
 );
 
 /* Interpolate two vectors */
-void SKP_Silk_interpolate(
+void silk_interpolate(
     SKP_int16                       xi[ MAX_LPC_ORDER ],    /* O    interpolated vector                     */
     const SKP_int16                 x0[ MAX_LPC_ORDER ],    /* I    first vector                            */
     const SKP_int16                 x1[ MAX_LPC_ORDER ],    /* I    second vector                           */
@@ -186,7 +200,7 @@ void SKP_Silk_interpolate(
 );
 
 /* LTP tap quantizer */
-void SKP_Silk_quant_LTP_gains(
+void silk_quant_LTP_gains(
     SKP_int16           B_Q14[ MAX_NB_SUBFR * LTP_ORDER ],              /* I/O  (un)quantized LTP gains     */
     SKP_int8            cbk_index[ MAX_NB_SUBFR ],                      /* O    Codebook Index              */
     SKP_int8            *periodicity_index,                             /* O    Periodicity Index           */
@@ -197,7 +211,7 @@ void SKP_Silk_quant_LTP_gains(
 );
 
 /* Entropy constrained matrix-weighted VQ, for a single input data vector */
-void SKP_Silk_VQ_WMat_EC(
+void silk_VQ_WMat_EC(
     SKP_int8                        *ind,               /* O    index of best codebook vector               */
     SKP_int32                       *rate_dist_Q14,     /* O    best weighted quantization error + mu * rate*/
     const SKP_int16                 *in_Q14,            /* I    input vector to be quantized                */
@@ -211,9 +225,9 @@ void SKP_Silk_VQ_WMat_EC(
 /***********************************/
 /* Noise shaping quantization (NSQ)*/
 /***********************************/
-void SKP_Silk_NSQ(
-    const SKP_Silk_encoder_state    *psEncC,                                    /* I/O  Encoder State                       */
-    SKP_Silk_nsq_state              *NSQ,                                       /* I/O  NSQ state                           */
+void silk_NSQ(
+    const silk_encoder_state        *psEncC,                                    /* I/O  Encoder State                       */
+    silk_nsq_state                  *NSQ,                                       /* I/O  NSQ state                           */
     SideInfoIndices                 *psIndices,                                 /* I/O  Quantization Indices                */
     const SKP_int16                 x[],                                        /* I    prefiltered input signal            */
     SKP_int8                        pulses[],                                   /* O    quantized qulse signal              */
@@ -230,9 +244,9 @@ void SKP_Silk_NSQ(
 );
 
 /* Noise shaping using delayed decision */
-void SKP_Silk_NSQ_del_dec(
-    const SKP_Silk_encoder_state    *psEncC,                                    /* I/O  Encoder State                       */
-    SKP_Silk_nsq_state              *NSQ,                                       /* I/O  NSQ state                           */
+void silk_NSQ_del_dec(
+    const silk_encoder_state        *psEncC,                                    /* I/O  Encoder State                       */
+    silk_nsq_state                  *NSQ,                                       /* I/O  NSQ state                           */
     SideInfoIndices                 *psIndices,                                 /* I/O  Quantization Indices                */
     const SKP_int16                 x[],                                        /* I    Prefiltered input signal            */
     SKP_int8                        pulses[],                                   /* O    Quantized pulse signal              */
@@ -252,35 +266,27 @@ void SKP_Silk_NSQ_del_dec(
 /* Silk VAD */
 /************/
 /* Initialize the Silk VAD */
-SKP_int SKP_Silk_VAD_Init(                          /* O    Return value, 0 if success                  */ 
-    SKP_Silk_VAD_state          *psSilk_VAD         /* I/O  Pointer to Silk VAD state                   */ 
+SKP_int silk_VAD_Init(                              /* O    Return value, 0 if success                  */ 
+    silk_VAD_state              *psSilk_VAD         /* I/O  Pointer to Silk VAD state                   */ 
 ); 
 
 /* Silk VAD noise level estimation */
-void SKP_Silk_VAD_GetNoiseLevels(
+void silk_VAD_GetNoiseLevels(
     const SKP_int32             pX[ VAD_N_BANDS ],  /* I    subband energies                            */
-    SKP_Silk_VAD_state          *psSilk_VAD         /* I/O  Pointer to Silk VAD state                   */ 
+    silk_VAD_state              *psSilk_VAD         /* I/O  Pointer to Silk VAD state                   */ 
 );
 
 /* Get speech activity level in Q8 */
-SKP_int SKP_Silk_VAD_GetSA_Q8(                      /* O    Return value, 0 if success                  */
-    SKP_Silk_encoder_state      *psEncC,            /* I/O  Encoder state                               */
+SKP_int silk_VAD_GetSA_Q8(                          /* O    Return value, 0 if success                  */
+    silk_encoder_state          *psEncC,            /* I/O  Encoder state                               */
     const SKP_int16             pIn[]               /* I    PCM input                                   */
 );
 
-/* High-pass filter with cutoff frequency adaptation based on pitch lag statistics */
-void SKP_Silk_HP_variable_cutoff(
-    SKP_Silk_encoder_state          *psEncC,        /* I/O  Encoder state                               */
-    SKP_int16                       *out,           /* O    high-pass filtered output signal            */
-    const SKP_int16                 *in,            /* I    input signal                                */
-    const SKP_int                   frame_length    /* I    length of input                             */
-);
-
 /* Low-pass filter with variable cutoff frequency based on  */
 /* piece-wise linear interpolation between elliptic filters */
 /* Start by setting transition_frame_no = 1;                */
-void SKP_Silk_LP_variable_cutoff(
-    SKP_Silk_LP_state           *psLP,              /* I/O  LP filter state                             */
+void silk_LP_variable_cutoff(
+    silk_LP_state               *psLP,              /* I/O  LP filter state                             */
     SKP_int16                   *signal,            /* I/O  Low-pass filtered output signal             */
     const SKP_int               frame_length        /* I    Frame length                                */
 );
@@ -289,17 +295,17 @@ void SKP_Silk_LP_variable_cutoff(
 /* NLSF Quantizer */
 /******************/
 /* Limit, stabilize, convert and quantize NLSFs */ 
-void SKP_Silk_process_NLSFs(
-    SKP_Silk_encoder_state          *psEncC,                                /* I/O  Encoder state                               */
+void silk_process_NLSFs(
+    silk_encoder_state              *psEncC,                                /* I/O  Encoder state                               */
     SKP_int16                       PredCoef_Q12[ 2 ][ MAX_LPC_ORDER ],     /* O    Prediction coefficients                     */
     SKP_int16                       pNLSF_Q15[         MAX_LPC_ORDER ],     /* I/O  Normalized LSFs (quant out) (0 - (2^15-1))  */
     const SKP_int16                 prev_NLSFq_Q15[    MAX_LPC_ORDER ]      /* I    Previous Normalized LSFs (0 - (2^15-1))     */
 );
 
-SKP_int32 SKP_Silk_NLSF_encode(                             /* O    Returns RD value in Q25                 */
+SKP_int32 silk_NLSF_encode(                                 /* O    Returns RD value in Q25                 */
           SKP_int8                  *NLSFIndices,           /* I    Codebook path vector [ LPC_ORDER + 1 ]  */
           SKP_int16                 *pNLSF_Q15,             /* I/O  Quantized NLSF vector [ LPC_ORDER ]     */
-    const SKP_Silk_NLSF_CB_struct   *psNLSF_CB,             /* I    Codebook object                         */
+    const silk_NLSF_CB_struct       *psNLSF_CB,             /* I    Codebook object                         */
     const SKP_int16                 *pW_Q5,                 /* I    NLSF weight vector [ LPC_ORDER ]        */
     const SKP_int                   NLSF_mu_Q20,            /* I    Rate weight for the RD optimization     */
     const SKP_int                   nSurvivors,             /* I    Max survivors after first stage         */
@@ -307,7 +313,7 @@ SKP_int32 SKP_Silk_NLSF_encode(                             /* O    Returns RD v
 );
 
 /* Compute quantization errors for an LPC_order element input vector for a VQ codebook */
-void SKP_Silk_NLSF_VQ(
+void silk_NLSF_VQ(
     SKP_int32                   err_Q26[],              /* O    Quantization errors [K]                     */
     const SKP_int16             in_Q15[],               /* I    Input vectors to be quantized [LPC_order]   */
     const SKP_uint8             pCB_Q8[],               /* I    Codebook vectors [K*LPC_order]              */
@@ -316,7 +322,7 @@ void SKP_Silk_NLSF_VQ(
 );
 
 /* Delayed-decision quantizer for NLSF residuals */
-SKP_int32 SKP_Silk_NLSF_del_dec_quant(                  /* O    Returns RD value in Q25                     */
+SKP_int32 silk_NLSF_del_dec_quant(                      /* O    Returns RD value in Q25                     */
     SKP_int8                    indices[],              /* O    Quantization indices [ order ]              */
     const SKP_int16             x_Q10[],                /* I    Input [ order ]                             */
     const SKP_int16             w_Q5[],                 /* I    Weights [ order ]                           */
@@ -330,48 +336,48 @@ SKP_int32 SKP_Silk_NLSF_del_dec_quant(                  /* O    Returns RD value
 );
 
 /* Unpack predictor values and indices for entropy coding tables */
-void SKP_Silk_NLSF_unpack(
+void silk_NLSF_unpack(
           SKP_int16                 ec_ix[],                /* O    Indices to entropy tales [ LPC_ORDER ]  */
           SKP_uint8                 pred_Q8[],              /* O    LSF predictor [ LPC_ORDER ]             */
-    const SKP_Silk_NLSF_CB_struct   *psNLSF_CB,             /* I    Codebook object                         */
+    const silk_NLSF_CB_struct       *psNLSF_CB,             /* I    Codebook object                         */
     const SKP_int                   CB1_index               /* I    Index of vector in first LSF codebook   */
 );
 
 /***********************/
 /* NLSF vector decoder */
 /***********************/
-void SKP_Silk_NLSF_decode(
+void silk_NLSF_decode(
           SKP_int16                 *pNLSF_Q15,             /* O    Quantized NLSF vector [ LPC_ORDER ]     */
           SKP_int8                  *NLSFIndices,           /* I    Codebook path vector [ LPC_ORDER + 1 ]  */
-    const SKP_Silk_NLSF_CB_struct   *psNLSF_CB              /* I    Codebook object                         */
+    const silk_NLSF_CB_struct       *psNLSF_CB              /* I    Codebook object                         */
 );
 
 /****************************************************/
 /* Decoder Functions                                */
 /****************************************************/
-SKP_int SKP_Silk_create_decoder(
-    SKP_Silk_decoder_state          **ppsDec            /* I/O  Decoder state pointer pointer               */
+SKP_int silk_create_decoder(
+    silk_decoder_state              **ppsDec            /* I/O  Decoder state pointer pointer               */
 );
 
-SKP_int SKP_Silk_free_decoder(
-    SKP_Silk_decoder_state          *psDec              /* I/O  Decoder state pointer                       */
+SKP_int silk_free_decoder(
+    silk_decoder_state              *psDec              /* I/O  Decoder state pointer                       */
 );
 
-SKP_int SKP_Silk_init_decoder(
-    SKP_Silk_decoder_state          *psDec              /* I/O  Decoder state pointer                       */
+SKP_int silk_init_decoder(
+    silk_decoder_state              *psDec              /* I/O  Decoder state pointer                       */
 );
 
 /* Set decoder sampling rate */
-void SKP_Silk_decoder_set_fs(
-    SKP_Silk_decoder_state          *psDec,             /* I/O  Decoder state pointer                       */
+void silk_decoder_set_fs(
+    silk_decoder_state              *psDec,             /* I/O  Decoder state pointer                       */
     SKP_int                         fs_kHz              /* I    Sampling frequency (kHz)                    */
 );
 
 /****************/
 /* Decode frame */
 /****************/
-SKP_int SKP_Silk_decode_frame(
-    SKP_Silk_decoder_state      *psDec,             /* I/O  Pointer to Silk decoder state               */
+SKP_int silk_decode_frame(
+    silk_decoder_state          *psDec,             /* I/O  Pointer to Silk decoder state               */
     ec_dec                      *psRangeDec,        /* I/O  Compressor data structure                   */
     SKP_int16                   pOut[],             /* O    Pointer to output speech frame              */
     SKP_int32                   *pN,                /* O    Pointer to size of output frame             */
@@ -379,35 +385,35 @@ SKP_int SKP_Silk_decode_frame(
 );
 
 /* Decode LBRR side info and excitation */
-void SKP_Silk_LBRR_extract(
-    SKP_Silk_decoder_state      *psDec,             /* I/O  State                                       */
+void silk_LBRR_extract(
+    silk_decoder_state          *psDec,             /* I/O  State                                       */
     ec_dec                      *psRangeDec         /* I/O  Compressor data structure                   */
 );
 
 /* Decode indices from payload v4 Bitstream */
-void SKP_Silk_decode_indices(
-    SKP_Silk_decoder_state      *psDec,             /* I/O  State                                       */
+void silk_decode_indices(
+    silk_decoder_state          *psDec,             /* I/O  State                                       */
     ec_dec                      *psRangeDec,        /* I/O  Compressor data structure                   */
     SKP_int                     FrameIndex,         /* I    Frame number                                */
     SKP_int                     decode_LBRR         /* I    Flag indicating LBRR data is being decoded  */
 );
 
 /* Decode parameters from payload */
-void SKP_Silk_decode_parameters(
-    SKP_Silk_decoder_state      *psDec,                             /* I/O  State                                    */
-    SKP_Silk_decoder_control    *psDecCtrl                          /* I/O  Decoder control                          */
+void silk_decode_parameters(
+    silk_decoder_state      *psDec,                             /* I/O  State                                    */
+    silk_decoder_control    *psDecCtrl                          /* I/O  Decoder control                          */
 );
 
 /* Core decoder. Performs inverse NSQ operation LTP + LPC */
-void SKP_Silk_decode_core(
-    SKP_Silk_decoder_state      *psDec,                             /* I/O  Decoder state               */
-    SKP_Silk_decoder_control    *psDecCtrl,                         /* I    Decoder control             */
+void silk_decode_core(
+    silk_decoder_state          *psDec,                             /* I/O  Decoder state               */
+    silk_decoder_control        *psDecCtrl,                         /* I    Decoder control             */
     SKP_int16                   xq[],                               /* O    Decoded speech              */
     const SKP_int               pulses[ MAX_FRAME_LENGTH ]          /* I    Pulse signal                */
 );
 
 /* Decode quantization indices of excitation (Shell coding) */
-void SKP_Silk_decode_pulses(
+void silk_decode_pulses(
     ec_dec                          *psRangeDec,        /* I/O  Compressor data structure                   */
     SKP_int                         pulses[],           /* O    Excitation signal                           */
     const SKP_int                   signalType,         /* I    Sigtype                                     */
@@ -420,21 +426,21 @@ void SKP_Silk_decode_pulses(
 /******************/
 
 /* Reset CNG */
-void SKP_Silk_CNG_Reset(
-    SKP_Silk_decoder_state      *psDec              /* I/O  Decoder state                               */
+void silk_CNG_Reset(
+    silk_decoder_state          *psDec              /* I/O  Decoder state                               */
 );
 
 /* Updates CNG estimate, and applies the CNG when packet was lost */
-void SKP_Silk_CNG(
-    SKP_Silk_decoder_state      *psDec,             /* I/O  Decoder state                               */
-    SKP_Silk_decoder_control    *psDecCtrl,         /* I/O  Decoder control                             */
+void silk_CNG(
+    silk_decoder_state          *psDec,             /* I/O  Decoder state                               */
+    silk_decoder_control        *psDecCtrl,         /* I/O  Decoder control                             */
     SKP_int16                   signal[],           /* I/O  Signal                                      */
     SKP_int                     length              /* I    Length of residual                          */
 );
 
 /* Encoding of various parameters */
-void SKP_Silk_encode_indices(
-    SKP_Silk_encoder_state      *psEncC,            /* I/O  Encoder state                               */
+void silk_encode_indices(
+    silk_encoder_state          *psEncC,            /* I/O  Encoder state                               */
     ec_enc                      *psRangeEnc,        /* I/O  Compressor data structure                   */
     SKP_int                     FrameIndex,         /* I    Frame number                                */
     SKP_int                     encode_LBRR         /* I    Flag indicating LBRR data is being encoded  */
diff --git a/silk/SKP_Silk_pitch_analysis_core.c b/silk/silk_pitch_analysis_core.c
similarity index 84%
rename from silk/SKP_Silk_pitch_analysis_core.c
rename to silk/silk_pitch_analysis_core.c
index bf058913..ef4569fb 100644
--- a/silk/SKP_Silk_pitch_analysis_core.c
+++ b/silk/silk_pitch_analysis_core.c
@@ -28,16 +28,16 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /***********************************************************
 * Pitch analyser function
 ********************************************************** */
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_pitch_est_defines.h"
-#include "SKP_debug.h"
+#include "silk_SigProc_FIX.h"
+#include "silk_pitch_est_defines.h"
+#include "silk_debug.h"
 
 #define SCRATCH_SIZE    22
 
 /************************************************************/
 /* Internally used functions                                */
 /************************************************************/
-void SKP_FIX_P_Ana_calc_corr_st3(
+void silk_P_Ana_calc_corr_st3(
     SKP_int32        cross_corr_st3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ][ PE_NB_STAGE3_LAGS ],/* (O) 3 DIM correlation array */
     const SKP_int16  signal[],                        /* I vector to correlate         */
     SKP_int          start_lag,                       /* I lag offset to search around */
@@ -46,7 +46,7 @@ void SKP_FIX_P_Ana_calc_corr_st3(
     SKP_int          complexity                       /* I Complexity setting          */
 );
 
-void SKP_FIX_P_Ana_calc_energy_st3(
+void silk_P_Ana_calc_energy_st3(
     SKP_int32        energies_st3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ][ PE_NB_STAGE3_LAGS ],/* (O) 3 DIM energy array */
     const SKP_int16  signal[],                        /* I vector to calc energy in    */
     SKP_int          start_lag,                       /* I lag offset to search around */
@@ -55,7 +55,7 @@ void SKP_FIX_P_Ana_calc_energy_st3(
     SKP_int          complexity                       /* I Complexity setting          */
 );
 
-SKP_int32 SKP_FIX_P_Ana_find_scaling(
+SKP_int32 silk_P_Ana_find_scaling(
     const SKP_int16  *signal,
     const SKP_int    signal_length, 
     const SKP_int    sum_sqr_len
@@ -64,7 +64,7 @@ SKP_int32 SKP_FIX_P_Ana_find_scaling(
 /*************************************************************/
 /*      FIXED POINT CORE PITCH ANALYSIS FUNCTION             */
 /*************************************************************/
-SKP_int SKP_Silk_pitch_analysis_core(    /* O    Voicing estimate: 0 voiced, 1 unvoiced                     */
+SKP_int silk_pitch_analysis_core(    /* O    Voicing estimate: 0 voiced, 1 unvoiced                     */
     const SKP_int16  *signal,            /* I    Signal of length PE_FRAME_LENGTH_MS*Fs_kHz                 */
     SKP_int          *pitch_out,         /* O    4 pitch lag values                                         */
     SKP_int16        *lagIndex,          /* O    Lag Index                                                  */
@@ -106,8 +106,8 @@ SKP_int SKP_Silk_pitch_analysis_core(    /* O    Voicing estimate: 0 voiced, 1 u
     SKP_assert( Fs_kHz == 8 || Fs_kHz == 12 || Fs_kHz == 16 );
 
     /* Check for valid complexity setting */
-    SKP_assert( complexity >= SKP_Silk_PE_MIN_COMPLEX );
-    SKP_assert( complexity <= SKP_Silk_PE_MAX_COMPLEX );
+    SKP_assert( complexity >= SILK_PE_MIN_COMPLEX );
+    SKP_assert( complexity <= SILK_PE_MAX_COMPLEX );
 
     SKP_assert( search_thres1_Q16 >= 0 && search_thres1_Q16 <= (1<<16) );
     SKP_assert( search_thres2_Q15 >= 0 && search_thres2_Q15 <= (1<<15) );
@@ -131,10 +131,10 @@ SKP_int SKP_Silk_pitch_analysis_core(    /* O    Voicing estimate: 0 voiced, 1 u
     /* Resample from input sampled at Fs_kHz to 8 kHz */
     if( Fs_kHz == 16 ) {
         SKP_memset( filt_state, 0, 2 * sizeof( SKP_int32 ) );
-        SKP_Silk_resampler_down2( filt_state, signal_8kHz, signal, frame_length );
+        silk_resampler_down2( filt_state, signal_8kHz, signal, frame_length );
     } else if ( Fs_kHz == 12 ) {
         SKP_memset( filt_state, 0, 6 * sizeof( SKP_int32 ) );
-        SKP_Silk_resampler_down2_3( filt_state, signal_8kHz, signal, frame_length );
+        silk_resampler_down2_3( filt_state, signal_8kHz, signal, frame_length );
     } else {
         SKP_assert( Fs_kHz == 8 );
         SKP_memcpy( signal_8kHz, signal, frame_length_8kHz * sizeof(SKP_int16) );
@@ -142,7 +142,7 @@ SKP_int SKP_Silk_pitch_analysis_core(    /* O    Voicing estimate: 0 voiced, 1 u
 
     /* Decimate again to 4 kHz */
     SKP_memset( filt_state, 0, 2 * sizeof( SKP_int32 ) );/* Set state to zero */
-    SKP_Silk_resampler_down2( filt_state, signal_4kHz, signal_8kHz, frame_length_8kHz );
+    silk_resampler_down2( filt_state, signal_4kHz, signal_8kHz, frame_length_8kHz );
 
     /* Low-pass filter */
     for( i = frame_length_4kHz - 1; i > 0; i-- ) {
@@ -156,7 +156,7 @@ SKP_int SKP_Silk_pitch_analysis_core(    /* O    Voicing estimate: 0 voiced, 1 u
     
     /* Inner product is calculated with different lengths, so scale for the worst case */
     max_sum_sq_length = SKP_max_32( sf_length_8kHz, SKP_LSHIFT( sf_length_4kHz, 2 ) );
-    shift = SKP_FIX_P_Ana_find_scaling( signal_4kHz, frame_length_4kHz, max_sum_sq_length );
+    shift = silk_P_Ana_find_scaling( signal_4kHz, frame_length_4kHz, max_sum_sq_length );
     if( shift > 0 ) {
         for( i = 0; i < frame_length_4kHz; i++ ) {
             signal_4kHz[ i ] = SKP_RSHIFT( signal_4kHz[ i ], shift );
@@ -181,11 +181,11 @@ SKP_int SKP_Silk_pitch_analysis_core(    /* O    Voicing estimate: 0 voiced, 1 u
         normalizer = 0;
         cross_corr = 0;
         /* Calculate first vector products before loop */
-        cross_corr = SKP_Silk_inner_prod_aligned( target_ptr, basis_ptr, sf_length_8kHz );
-        normalizer = SKP_Silk_inner_prod_aligned( basis_ptr,  basis_ptr, sf_length_8kHz );
+        cross_corr = silk_inner_prod_aligned( target_ptr, basis_ptr, sf_length_8kHz );
+        normalizer = silk_inner_prod_aligned( basis_ptr,  basis_ptr, sf_length_8kHz );
         normalizer = SKP_ADD_SAT32( normalizer, SKP_SMULBB( sf_length_8kHz, 4000 ) );
 
-        temp32 = SKP_DIV32( cross_corr, SKP_Silk_SQRT_APPROX( normalizer ) + 1 );
+        temp32 = SKP_DIV32( cross_corr, silk_SQRT_APPROX( normalizer ) + 1 );
         C[ k ][ min_lag_4kHz ] = (SKP_int16)SKP_SAT16( temp32 );        /* Q0 */
 
         /* From now on normalizer is computed recursively */
@@ -196,14 +196,14 @@ SKP_int SKP_Silk_pitch_analysis_core(    /* O    Voicing estimate: 0 voiced, 1 u
             SKP_assert( basis_ptr >= signal_4kHz );
             SKP_assert( basis_ptr + sf_length_8kHz <= signal_4kHz + frame_length_4kHz );
 
-            cross_corr = SKP_Silk_inner_prod_aligned( target_ptr, basis_ptr, sf_length_8kHz );
+            cross_corr = silk_inner_prod_aligned( target_ptr, basis_ptr, sf_length_8kHz );
 
             /* Add contribution of new sample and remove contribution from oldest sample */
             normalizer +=
                 SKP_SMULBB( basis_ptr[ 0 ], basis_ptr[ 0 ] ) - 
                 SKP_SMULBB( basis_ptr[ sf_length_8kHz ], basis_ptr[ sf_length_8kHz ] ); 
     
-            temp32 = SKP_DIV32( cross_corr, SKP_Silk_SQRT_APPROX( normalizer ) + 1 );
+            temp32 = SKP_DIV32( cross_corr, silk_SQRT_APPROX( normalizer ) + 1 );
             C[ k ][ d ] = (SKP_int16)SKP_SAT16( temp32 );                        /* Q0 */
         }
         /* Update target pointer */
@@ -233,11 +233,11 @@ SKP_int SKP_Silk_pitch_analysis_core(    /* O    Voicing estimate: 0 voiced, 1 u
     /* Sort */
     length_d_srch = SKP_ADD_LSHIFT32( 4, complexity, 1 );
     SKP_assert( 3 * length_d_srch <= PE_D_SRCH_LENGTH );
-    SKP_Silk_insertion_sort_decreasing_int16( &C[ 0 ][ min_lag_4kHz ], d_srch, max_lag_4kHz - min_lag_4kHz + 1, length_d_srch );
+    silk_insertion_sort_decreasing_int16( &C[ 0 ][ min_lag_4kHz ], d_srch, max_lag_4kHz - min_lag_4kHz + 1, length_d_srch );
 
     /* Escape if correlation is very low already here */
     target_ptr = &signal_4kHz[ SKP_SMULBB( sf_length_4kHz, nb_subfr ) ];
-    energy = SKP_Silk_inner_prod_aligned( target_ptr, target_ptr, SKP_LSHIFT( sf_length_4kHz, 2 ) );
+    energy = silk_inner_prod_aligned( target_ptr, target_ptr, SKP_LSHIFT( sf_length_4kHz, 2 ) );
     energy = SKP_ADD_SAT32( energy, 1000 );                                  /* Q0 */
     Cmax = (SKP_int)C[ 0 ][ min_lag_4kHz ];                                  /* Q-1 */
     threshold = SKP_SMULBB( Cmax, Cmax );                                    /* Q-2 */
@@ -304,7 +304,7 @@ SKP_int SKP_Silk_pitch_analysis_core(    /* O    Voicing estimate: 0 voiced, 1 u
     ** Scale signal down to avoid correlations measures from overflowing
     *******************************************************************************/
     /* find scaling as max scaling for each subframe */
-    shift = SKP_FIX_P_Ana_find_scaling( signal_8kHz, frame_length_8kHz, sf_length_8kHz );
+    shift = silk_P_Ana_find_scaling( signal_8kHz, frame_length_8kHz, sf_length_8kHz );
     if( shift > 0 ) {
         for( i = 0; i < frame_length_8kHz; i++ ) {
             signal_8kHz[ i ] = SKP_RSHIFT( signal_8kHz[ i ], shift );
@@ -323,7 +323,7 @@ SKP_int SKP_Silk_pitch_analysis_core(    /* O    Voicing estimate: 0 voiced, 1 u
         SKP_assert( target_ptr >= signal_8kHz );
         SKP_assert( target_ptr + sf_length_8kHz <= signal_8kHz + frame_length_8kHz );
 
-        energy_target = SKP_Silk_inner_prod_aligned( target_ptr, target_ptr, sf_length_8kHz );
+        energy_target = silk_inner_prod_aligned( target_ptr, target_ptr, sf_length_8kHz );
         // ToDo: Calculate 1 / energy_target here and save one division inside next for loop
         for( j = 0; j < length_d_comp; j++ ) {
             d = d_comp[ j ];
@@ -333,17 +333,17 @@ SKP_int SKP_Silk_pitch_analysis_core(    /* O    Voicing estimate: 0 voiced, 1 u
             SKP_assert( basis_ptr >= signal_8kHz );
             SKP_assert( basis_ptr + sf_length_8kHz <= signal_8kHz + frame_length_8kHz );
         
-            cross_corr   = SKP_Silk_inner_prod_aligned( target_ptr, basis_ptr, sf_length_8kHz );
-            energy_basis = SKP_Silk_inner_prod_aligned( basis_ptr,  basis_ptr, sf_length_8kHz );
+            cross_corr   = silk_inner_prod_aligned( target_ptr, basis_ptr, sf_length_8kHz );
+            energy_basis = silk_inner_prod_aligned( basis_ptr,  basis_ptr, sf_length_8kHz );
             if( cross_corr > 0 ) {
                 energy = SKP_max( energy_target, energy_basis ); /* Find max to make sure first division < 1.0 */
-                lz = SKP_Silk_CLZ32( cross_corr );
+                lz = silk_CLZ32( cross_corr );
                 lshift = SKP_LIMIT_32( lz - 1, 0, 15 );
                 temp32 = SKP_DIV32( SKP_LSHIFT( cross_corr, lshift ), SKP_RSHIFT( energy, 15 - lshift ) + 1 ); /* Q15 */
                 SKP_assert( temp32 == SKP_SAT16( temp32 ) );
                 temp32 = SKP_SMULWB( cross_corr, temp32 ); /* Q(-1), cc * ( cc / max(b, t) ) */
                 temp32 = SKP_ADD_SAT32( temp32, temp32 );  /* Q(0) */
-                lz = SKP_Silk_CLZ32( temp32 );
+                lz = silk_CLZ32( temp32 );
                 lshift = SKP_LIMIT_32( lz - 1, 0, 15 );
                 energy = SKP_min( energy_target, energy_basis );
                 C[ k ][ d ] = SKP_DIV32( SKP_LSHIFT( temp32, lshift ), SKP_RSHIFT( energy, 15 - lshift ) + 1 ); // Q15
@@ -369,7 +369,7 @@ SKP_int SKP_Silk_pitch_analysis_core(    /* O    Voicing estimate: 0 voiced, 1 u
         } else if( Fs_kHz == 16 ) {
             prevLag = SKP_RSHIFT( prevLag, 1 );
         }
-        prevLag_log2_Q7 = SKP_Silk_lin2log( (SKP_int32)prevLag );
+        prevLag_log2_Q7 = silk_lin2log( (SKP_int32)prevLag );
     } else {
         prevLag_log2_Q7 = 0;
     }
@@ -377,8 +377,8 @@ SKP_int SKP_Silk_pitch_analysis_core(    /* O    Voicing estimate: 0 voiced, 1 u
     /* Setup stage 2 codebook based on number of subframes */
     if( nb_subfr == PE_MAX_NB_SUBFR ) {
         cbk_size   = PE_NB_CBKS_STAGE2_EXT;
-        Lag_CB_ptr = &SKP_Silk_CB_lags_stage2[ 0 ][ 0 ];
-        if( Fs_kHz == 8 && complexity > SKP_Silk_PE_MIN_COMPLEX ) {
+        Lag_CB_ptr = &silk_CB_lags_stage2[ 0 ][ 0 ];
+        if( Fs_kHz == 8 && complexity > SILK_PE_MIN_COMPLEX ) {
             /* If input is 8 khz use a larger codebook here because it is last stage */
             nb_cbk_search = PE_NB_CBKS_STAGE2_EXT;
         } else {
@@ -387,7 +387,7 @@ SKP_int SKP_Silk_pitch_analysis_core(    /* O    Voicing estimate: 0 voiced, 1 u
         corr_thres_Q15 = SKP_RSHIFT( SKP_SMULBB( search_thres2_Q15, search_thres2_Q15 ), 13 );
     } else {
         cbk_size       = PE_NB_CBKS_STAGE2_10MS;
-        Lag_CB_ptr     = &SKP_Silk_CB_lags_stage2_10_ms[ 0 ][ 0 ];
+        Lag_CB_ptr     = &silk_CB_lags_stage2_10_ms[ 0 ][ 0 ];
         nb_cbk_search  = PE_NB_CBKS_STAGE2_10MS;
         corr_thres_Q15 = SKP_RSHIFT( SKP_SMULBB( search_thres2_Q15, search_thres2_Q15 ), 14 );
     }
@@ -412,25 +412,25 @@ SKP_int SKP_Silk_pitch_analysis_core(    /* O    Voicing estimate: 0 voiced, 1 u
         }
 
         /* Bias towards shorter lags */
-        lag_log2_Q7 = SKP_Silk_lin2log( (SKP_int32)d ); /* Q7 */
+        lag_log2_Q7 = silk_lin2log( (SKP_int32)d ); /* Q7 */
         SKP_assert( lag_log2_Q7 == SKP_SAT16( lag_log2_Q7 ) );
-        SKP_assert( nb_subfr * SKP_FIX_CONST( PE_SHORTLAG_BIAS, 15 ) == SKP_SAT16( nb_subfr * SKP_FIX_CONST( PE_SHORTLAG_BIAS, 15 ) ) );
-        CCmax_new_b = CCmax_new - SKP_RSHIFT( SKP_SMULBB( nb_subfr * SKP_FIX_CONST( PE_SHORTLAG_BIAS, 15 ), lag_log2_Q7 ), 7 ); /* Q15 */
+        SKP_assert( nb_subfr * SILK_FIX_CONST( PE_SHORTLAG_BIAS, 15 ) == SKP_SAT16( nb_subfr * SILK_FIX_CONST( PE_SHORTLAG_BIAS, 15 ) ) );
+        CCmax_new_b = CCmax_new - SKP_RSHIFT( SKP_SMULBB( nb_subfr * SILK_FIX_CONST( PE_SHORTLAG_BIAS, 15 ), lag_log2_Q7 ), 7 ); /* Q15 */
 
         /* Bias towards previous lag */
-        SKP_assert( nb_subfr * SKP_FIX_CONST( PE_PREVLAG_BIAS, 15 ) == SKP_SAT16( nb_subfr * SKP_FIX_CONST( PE_PREVLAG_BIAS, 15 ) ) );
+        SKP_assert( nb_subfr * SILK_FIX_CONST( PE_PREVLAG_BIAS, 15 ) == SKP_SAT16( nb_subfr * SILK_FIX_CONST( PE_PREVLAG_BIAS, 15 ) ) );
         if( prevLag > 0 ) {
             delta_lag_log2_sqr_Q7 = lag_log2_Q7 - prevLag_log2_Q7;
             SKP_assert( delta_lag_log2_sqr_Q7 == SKP_SAT16( delta_lag_log2_sqr_Q7 ) );
             delta_lag_log2_sqr_Q7 = SKP_RSHIFT( SKP_SMULBB( delta_lag_log2_sqr_Q7, delta_lag_log2_sqr_Q7 ), 7 );
-            prev_lag_bias_Q15 = SKP_RSHIFT( SKP_SMULBB( nb_subfr * SKP_FIX_CONST( PE_PREVLAG_BIAS, 15 ), *LTPCorr_Q15 ), 15 ); /* Q15 */
+            prev_lag_bias_Q15 = SKP_RSHIFT( SKP_SMULBB( nb_subfr * SILK_FIX_CONST( PE_PREVLAG_BIAS, 15 ), *LTPCorr_Q15 ), 15 ); /* Q15 */
             prev_lag_bias_Q15 = SKP_DIV32( SKP_MUL( prev_lag_bias_Q15, delta_lag_log2_sqr_Q7 ), delta_lag_log2_sqr_Q7 + ( 1 << 6 ) );
             CCmax_new_b -= prev_lag_bias_Q15; /* Q15 */
         }
 
         if ( CCmax_new_b > CCmax_b                                          && /* Find maximum biased correlation                  */
              CCmax_new > corr_thres_Q15                                     && /* Correlation needs to be high enough to be voiced */
-             SKP_Silk_CB_lags_stage2[ 0 ][ CBimax_new ] <= min_lag_8kHz        /* Lag must be in range                             */
+             silk_CB_lags_stage2[ 0 ][ CBimax_new ] <= min_lag_8kHz        /* Lag must be in range                             */
             ) {
             CCmax_b = CCmax_new_b;
             CCmax   = CCmax_new;
@@ -454,7 +454,7 @@ SKP_int SKP_Silk_pitch_analysis_core(    /* O    Voicing estimate: 0 voiced, 1 u
         ** Scale input signal down to avoid correlations measures from overflowing
         *******************************************************************************/
         /* find scaling as max scaling for each subframe */
-        shift = SKP_FIX_P_Ana_find_scaling( signal, frame_length, sf_length );
+        shift = silk_P_Ana_find_scaling( signal, frame_length, sf_length );
         if( shift > 0 ) {
             /* Move signal to scratch mem because the input signal should be unchanged */
             /* Reuse the 32 bit scratch mem vector, use a 16 bit pointer from now */
@@ -486,30 +486,30 @@ SKP_int SKP_Silk_pitch_analysis_core(    /* O    Voicing estimate: 0 voiced, 1 u
         lag_new   = lag;                                    /* to avoid undefined lag */
         CBimax    = 0;                                        /* to avoid undefined lag */
         SKP_assert( SKP_LSHIFT( CCmax, 13 ) >= 0 ); 
-        *LTPCorr_Q15 = (SKP_int)SKP_Silk_SQRT_APPROX( SKP_LSHIFT( CCmax, 13 ) ); /* Output normalized correlation */
+        *LTPCorr_Q15 = (SKP_int)silk_SQRT_APPROX( SKP_LSHIFT( CCmax, 13 ) ); /* Output normalized correlation */
 
         CCmax = SKP_int32_MIN;
         /* pitch lags according to second stage */
         for( k = 0; k < nb_subfr; k++ ) {
-            pitch_out[ k ] = lag + 2 * SKP_Silk_CB_lags_stage2[ k ][ CBimax_old ];
+            pitch_out[ k ] = lag + 2 * silk_CB_lags_stage2[ k ][ CBimax_old ];
         }
         /* Calculate the correlations and energies needed in stage 3 */
-        SKP_FIX_P_Ana_calc_corr_st3(  crosscorr_st3, input_signal_ptr, start_lag, sf_length, nb_subfr, complexity );
-        SKP_FIX_P_Ana_calc_energy_st3( energies_st3, input_signal_ptr, start_lag, sf_length, nb_subfr, complexity );
+        silk_P_Ana_calc_corr_st3(  crosscorr_st3, input_signal_ptr, start_lag, sf_length, nb_subfr, complexity );
+        silk_P_Ana_calc_energy_st3( energies_st3, input_signal_ptr, start_lag, sf_length, nb_subfr, complexity );
 
         lag_counter = 0;
         SKP_assert( lag == SKP_SAT16( lag ) );
-        contour_bias_Q20 = SKP_DIV32_16( SKP_FIX_CONST( PE_FLATCONTOUR_BIAS, 20 ), lag );
+        contour_bias_Q20 = SKP_DIV32_16( SILK_FIX_CONST( PE_FLATCONTOUR_BIAS, 20 ), lag );
 
         /* Setup cbk parameters acording to complexity setting and frame length */
         if( nb_subfr == PE_MAX_NB_SUBFR ) {
-            nb_cbk_search   = (SKP_int)SKP_Silk_nb_cbk_searchs_stage3[ complexity ];
+            nb_cbk_search   = (SKP_int)silk_nb_cbk_searchs_stage3[ complexity ];
             cbk_size        = PE_NB_CBKS_STAGE3_MAX;
-            Lag_CB_ptr      = &SKP_Silk_CB_lags_stage3[ 0 ][ 0 ];
+            Lag_CB_ptr      = &silk_CB_lags_stage3[ 0 ][ 0 ];
         } else {
             nb_cbk_search   = PE_NB_CBKS_STAGE3_10MS;
             cbk_size        = PE_NB_CBKS_STAGE3_10MS;
-            Lag_CB_ptr      = &SKP_Silk_CB_lags_stage3_10_ms[ 0 ][ 0 ];
+            Lag_CB_ptr      = &silk_CB_lags_stage3_10_ms[ 0 ][ 0 ];
         }
         for( d = start_lag; d <= end_lag; d++ ) {
             for( j = 0; j < nb_cbk_search; j++ ) {
@@ -523,7 +523,7 @@ SKP_int SKP_Silk_pitch_analysis_core(    /* O    Voicing estimate: 0 voiced, 1 u
                 }
                 if( cross_corr > 0 ) {
                     /* Divide cross_corr / energy and get result in Q15 */
-                    lz = SKP_Silk_CLZ32( cross_corr );
+                    lz = silk_CLZ32( cross_corr );
                     /* Divide with result in Q13, cross_corr could be larger than energy */
                     lshift = SKP_LIMIT_32( lz - 1, 0, 13 );
                     CCmax_new = SKP_DIV32( SKP_LSHIFT( cross_corr, lshift ), SKP_RSHIFT( energy, 13 - lshift ) + 1 );
@@ -544,7 +544,7 @@ SKP_int SKP_Silk_pitch_analysis_core(    /* O    Voicing estimate: 0 voiced, 1 u
                 }
 
                 if( CCmax_new > CCmax                                               && 
-                   ( d + SKP_Silk_CB_lags_stage3[ 0 ][ j ] ) <= max_lag  
+                   ( d + silk_CB_lags_stage3[ 0 ][ j ] ) <= max_lag  
                    ) {
                     CCmax   = CCmax_new;
                     lag_new = d;
@@ -562,7 +562,7 @@ SKP_int SKP_Silk_pitch_analysis_core(    /* O    Voicing estimate: 0 voiced, 1 u
     } else {
         /* Save Lags and correlation */
         CCmax = SKP_max( CCmax, 0 );
-        *LTPCorr_Q15 = (SKP_int)SKP_Silk_SQRT_APPROX( SKP_LSHIFT( CCmax, 13 ) ); /* Output normalized correlation */
+        *LTPCorr_Q15 = (SKP_int)silk_SQRT_APPROX( SKP_LSHIFT( CCmax, 13 ) ); /* Output normalized correlation */
         for( k = 0; k < nb_subfr; k++ ) {
             pitch_out[ k ] = lag + matrix_ptr( Lag_CB_ptr, k, CBimax, cbk_size );
         }
@@ -578,7 +578,7 @@ SKP_int SKP_Silk_pitch_analysis_core(    /* O    Voicing estimate: 0 voiced, 1 u
 /* Calculates the correlations used in stage 3 search. In order to cover */
 /* the whole lag codebook for all the searched offset lags (lag +- 2),   */
 /*************************************************************************/
-void SKP_FIX_P_Ana_calc_corr_st3(
+void silk_P_Ana_calc_corr_st3(
     SKP_int32        cross_corr_st3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ][ PE_NB_STAGE3_LAGS ],/* (O) 3 DIM correlation array */
     const SKP_int16  signal[],                        /* I vector to correlate         */
     SKP_int          start_lag,                       /* I lag offset to search around */
@@ -594,18 +594,18 @@ void SKP_FIX_P_Ana_calc_corr_st3(
     SKP_int32 scratch_mem[ SCRATCH_SIZE ];
     const SKP_int8 *Lag_range_ptr, *Lag_CB_ptr;
 
-    SKP_assert( complexity >= SKP_Silk_PE_MIN_COMPLEX );
-    SKP_assert( complexity <= SKP_Silk_PE_MAX_COMPLEX );
+    SKP_assert( complexity >= SILK_PE_MIN_COMPLEX );
+    SKP_assert( complexity <= SILK_PE_MAX_COMPLEX );
 
     if( nb_subfr == PE_MAX_NB_SUBFR ){
-        Lag_range_ptr = &SKP_Silk_Lag_range_stage3[ complexity ][ 0 ][ 0 ];
-        Lag_CB_ptr    = &SKP_Silk_CB_lags_stage3[ 0 ][ 0 ];
-        nb_cbk_search = SKP_Silk_nb_cbk_searchs_stage3[ complexity ];
+        Lag_range_ptr = &silk_Lag_range_stage3[ complexity ][ 0 ][ 0 ];
+        Lag_CB_ptr    = &silk_CB_lags_stage3[ 0 ][ 0 ];
+        nb_cbk_search = silk_nb_cbk_searchs_stage3[ complexity ];
         cbk_size      = PE_NB_CBKS_STAGE3_MAX;
     } else {
         SKP_assert( nb_subfr == PE_MAX_NB_SUBFR >> 1);
-        Lag_range_ptr = &SKP_Silk_Lag_range_stage3_10_ms[ 0 ][ 0 ];
-        Lag_CB_ptr    = &SKP_Silk_CB_lags_stage3_10_ms[ 0 ][ 0 ];
+        Lag_range_ptr = &silk_Lag_range_stage3_10_ms[ 0 ][ 0 ];
+        Lag_CB_ptr    = &silk_CB_lags_stage3_10_ms[ 0 ][ 0 ];
         nb_cbk_search = PE_NB_CBKS_STAGE3_10MS;
         cbk_size      = PE_NB_CBKS_STAGE3_10MS;
     }
@@ -619,7 +619,7 @@ void SKP_FIX_P_Ana_calc_corr_st3(
         lag_high = matrix_ptr( Lag_range_ptr, k, 1, 2 );
         for( j = lag_low; j <= lag_high; j++ ) {
             basis_ptr = target_ptr - ( start_lag + j );
-            cross_corr = SKP_Silk_inner_prod_aligned( (SKP_int16*)target_ptr, (SKP_int16*)basis_ptr, sf_length );
+            cross_corr = silk_inner_prod_aligned( (SKP_int16*)target_ptr, (SKP_int16*)basis_ptr, sf_length );
             SKP_assert( lag_counter < SCRATCH_SIZE );
             scratch_mem[ lag_counter ] = cross_corr;
             lag_counter++;
@@ -644,7 +644,7 @@ void SKP_FIX_P_Ana_calc_corr_st3(
 /* Calculate the energies for first two subframes. The energies are */
 /* calculated recursively.                                          */
 /********************************************************************/
-void SKP_FIX_P_Ana_calc_energy_st3(
+void silk_P_Ana_calc_energy_st3(
     SKP_int32        energies_st3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ][ PE_NB_STAGE3_LAGS ],/* (O) 3 DIM energy array */
     const SKP_int16  signal[],                        /* I vector to calc energy in    */
     SKP_int          start_lag,                       /* I lag offset to search around */
@@ -660,18 +660,18 @@ void SKP_FIX_P_Ana_calc_energy_st3(
     SKP_int32 scratch_mem[ SCRATCH_SIZE ];
     const SKP_int8 *Lag_range_ptr, *Lag_CB_ptr;
 
-    SKP_assert( complexity >= SKP_Silk_PE_MIN_COMPLEX );
-    SKP_assert( complexity <= SKP_Silk_PE_MAX_COMPLEX );
+    SKP_assert( complexity >= SILK_PE_MIN_COMPLEX );
+    SKP_assert( complexity <= SILK_PE_MAX_COMPLEX );
 
     if( nb_subfr == PE_MAX_NB_SUBFR ){
-        Lag_range_ptr = &SKP_Silk_Lag_range_stage3[ complexity ][ 0 ][ 0 ];
-        Lag_CB_ptr    = &SKP_Silk_CB_lags_stage3[ 0 ][ 0 ];
-        nb_cbk_search = SKP_Silk_nb_cbk_searchs_stage3[ complexity ];
+        Lag_range_ptr = &silk_Lag_range_stage3[ complexity ][ 0 ][ 0 ];
+        Lag_CB_ptr    = &silk_CB_lags_stage3[ 0 ][ 0 ];
+        nb_cbk_search = silk_nb_cbk_searchs_stage3[ complexity ];
         cbk_size      = PE_NB_CBKS_STAGE3_MAX;
     } else {
         SKP_assert( nb_subfr == PE_MAX_NB_SUBFR >> 1);
-        Lag_range_ptr = &SKP_Silk_Lag_range_stage3_10_ms[ 0 ][ 0 ];
-        Lag_CB_ptr    = &SKP_Silk_CB_lags_stage3_10_ms[ 0 ][ 0 ];
+        Lag_range_ptr = &silk_Lag_range_stage3_10_ms[ 0 ][ 0 ];
+        Lag_CB_ptr    = &silk_CB_lags_stage3_10_ms[ 0 ][ 0 ];
         nb_cbk_search = PE_NB_CBKS_STAGE3_10MS;
         cbk_size      = PE_NB_CBKS_STAGE3_10MS;
     }
@@ -681,7 +681,7 @@ void SKP_FIX_P_Ana_calc_energy_st3(
 
         /* Calculate the energy for first lag */
         basis_ptr = target_ptr - ( start_lag + matrix_ptr( Lag_range_ptr, k, 0, 2 ) );
-        energy = SKP_Silk_inner_prod_aligned( basis_ptr, basis_ptr, sf_length );
+        energy = silk_inner_prod_aligned( basis_ptr, basis_ptr, sf_length );
         SKP_assert( energy >= 0 );
         scratch_mem[ lag_counter ] = energy;
         lag_counter++;
@@ -716,7 +716,7 @@ void SKP_FIX_P_Ana_calc_energy_st3(
     }
 }
 
-SKP_int32 SKP_FIX_P_Ana_find_scaling(
+SKP_int32 silk_P_Ana_find_scaling(
     const SKP_int16  *signal,
     const SKP_int    signal_length, 
     const SKP_int    sum_sqr_len
@@ -724,16 +724,16 @@ SKP_int32 SKP_FIX_P_Ana_find_scaling(
 {
     SKP_int32 nbits, x_max;
     
-    x_max = SKP_Silk_int16_array_maxabs( signal, signal_length );
+    x_max = silk_int16_array_maxabs( signal, signal_length );
 
     if( x_max < SKP_int16_MAX ) {
         /* Number of bits needed for the sum of the squares */
-        nbits = 32 - SKP_Silk_CLZ32( SKP_SMULBB( x_max, x_max ) ); 
+        nbits = 32 - silk_CLZ32( SKP_SMULBB( x_max, x_max ) ); 
     } else {
         /* Here we don't know if x_max should have been SKP_int16_MAX + 1, so we expect the worst case */
         nbits = 30;
     }
-    nbits += 17 - SKP_Silk_CLZ16( sum_sqr_len );
+    nbits += 17 - silk_CLZ16( sum_sqr_len );
 
     /* Without a guarantee of saturation, we need to keep the 31st bit free */
     if( nbits < 31 ) {
diff --git a/silk/SKP_Silk_pitch_est_defines.h b/silk/silk_pitch_est_defines.h
similarity index 81%
rename from silk/SKP_Silk_pitch_est_defines.h
rename to silk/silk_pitch_est_defines.h
index 1960eabf..537d1b39 100644
--- a/silk/SKP_Silk_pitch_est_defines.h
+++ b/silk/silk_pitch_est_defines.h
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#ifndef SKP_SILK_PE_DEFINES_H
-#define SKP_SILK_PE_DEFINES_H
+#ifndef SILK_PE_DEFINES_H
+#define SILK_PE_DEFINES_H
 
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
 /************************************************************/
 /* Definitions For Fix pitch estimator                      */
@@ -73,15 +73,15 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define PE_PREVLAG_BIAS              0.2f    /* for logarithmic weighting    */
 #define PE_FLATCONTOUR_BIAS          0.05f
 
-extern const SKP_int8 SKP_Silk_CB_lags_stage2[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE2_EXT ];
-extern const SKP_int8 SKP_Silk_CB_lags_stage3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ];
-extern const SKP_int8 SKP_Silk_Lag_range_stage3[ SKP_Silk_PE_MAX_COMPLEX + 1 ] [ PE_MAX_NB_SUBFR ][ 2 ];
-extern const SKP_int8 SKP_Silk_nb_cbk_searchs_stage3[ SKP_Silk_PE_MAX_COMPLEX + 1 ];
+extern const SKP_int8 silk_CB_lags_stage2[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE2_EXT ];
+extern const SKP_int8 silk_CB_lags_stage3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ];
+extern const SKP_int8 silk_Lag_range_stage3[ SILK_PE_MAX_COMPLEX + 1 ] [ PE_MAX_NB_SUBFR ][ 2 ];
+extern const SKP_int8 silk_nb_cbk_searchs_stage3[ SILK_PE_MAX_COMPLEX + 1 ];
 
 /* Tables added for 10 ms frames */
-extern const SKP_int8 SKP_Silk_CB_lags_stage2_10_ms[ PE_MAX_NB_SUBFR >> 1][ 3 ];
-extern const SKP_int8 SKP_Silk_CB_lags_stage3_10_ms[ PE_MAX_NB_SUBFR >> 1 ][ 12 ];
-extern const SKP_int8 SKP_Silk_Lag_range_stage3_10_ms[ PE_MAX_NB_SUBFR >> 1 ][ 2 ];
+extern const SKP_int8 silk_CB_lags_stage2_10_ms[ PE_MAX_NB_SUBFR >> 1][ 3 ];
+extern const SKP_int8 silk_CB_lags_stage3_10_ms[ PE_MAX_NB_SUBFR >> 1 ][ 12 ];
+extern const SKP_int8 silk_Lag_range_stage3_10_ms[ PE_MAX_NB_SUBFR >> 1 ][ 2 ];
 
 #endif
 
diff --git a/silk/SKP_Silk_pitch_est_tables.c b/silk/silk_pitch_est_tables.c
similarity index 79%
rename from silk/SKP_Silk_pitch_est_tables.c
rename to silk/silk_pitch_est_tables.c
index f513b8d8..1c005308 100644
--- a/silk/SKP_Silk_pitch_est_tables.c
+++ b/silk/silk_pitch_est_tables.c
@@ -25,28 +25,28 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_typedef.h"
-#include "SKP_Silk_pitch_est_defines.h"
+#include "silk_typedef.h"
+#include "silk_pitch_est_defines.h"
 
-const SKP_int8 SKP_Silk_CB_lags_stage2_10_ms[ PE_MAX_NB_SUBFR >> 1][ PE_NB_CBKS_STAGE2_10MS ] =
+const SKP_int8 silk_CB_lags_stage2_10_ms[ PE_MAX_NB_SUBFR >> 1][ PE_NB_CBKS_STAGE2_10MS ] =
 {
     {0, 1, 0},
     {0, 0, 1}
 };
 
-const SKP_int8 SKP_Silk_CB_lags_stage3_10_ms[ PE_MAX_NB_SUBFR >> 1 ][ PE_NB_CBKS_STAGE3_10MS ] = 
+const SKP_int8 silk_CB_lags_stage3_10_ms[ PE_MAX_NB_SUBFR >> 1 ][ PE_NB_CBKS_STAGE3_10MS ] = 
 {
     { 0, 0, 1,-1, 1,-1, 2,-2, 2,-2, 3,-3},
     { 0, 1, 0, 1,-1, 2,-1, 2,-2, 3,-2, 3}
 };
 
-const SKP_int8 SKP_Silk_Lag_range_stage3_10_ms[ PE_MAX_NB_SUBFR >> 1 ][ 2 ] = 
+const SKP_int8 silk_Lag_range_stage3_10_ms[ PE_MAX_NB_SUBFR >> 1 ][ 2 ] = 
 {
     {-3, 7},
     {-2, 7}
 };
 
-const SKP_int8 SKP_Silk_CB_lags_stage2[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE2_EXT ] =
+const SKP_int8 silk_CB_lags_stage2[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE2_EXT ] =
 {
     {0, 2,-1,-1,-1, 0, 0, 1, 1, 0, 1},
     {0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0},
@@ -54,7 +54,7 @@ const SKP_int8 SKP_Silk_CB_lags_stage2[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE2_EXT
     {0,-1, 2, 1, 0, 1, 1, 0, 0,-1,-1} 
 };
 
-const SKP_int8 SKP_Silk_CB_lags_stage3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ] =
+const SKP_int8 silk_CB_lags_stage3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ] =
 {
     {0, 0, 1,-1, 0, 1,-1, 0,-1, 1,-2, 2,-2,-2, 2,-3, 2, 3,-3,-4, 3,-4, 4, 4,-5, 5,-6,-5, 6,-7, 6, 5, 8,-9},
     {0, 0, 1, 0, 0, 0, 0, 0, 0, 0,-1, 1, 0, 0, 1,-1, 0, 1,-1,-1, 1,-1, 2, 1,-1, 2,-2,-2, 2,-2, 2, 2, 3,-3},
@@ -62,7 +62,7 @@ const SKP_int8 SKP_Silk_CB_lags_stage3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX
     {0, 1, 0, 0, 1, 0, 1,-1, 2,-1, 2,-1, 2, 3,-2, 3,-2,-2, 4, 4,-3, 5,-3,-4, 6,-4, 6, 5,-5, 8,-6,-5,-7, 9}
 };
 
-const SKP_int8 SKP_Silk_Lag_range_stage3[ SKP_Silk_PE_MAX_COMPLEX + 1 ] [ PE_MAX_NB_SUBFR ][ 2 ] =
+const SKP_int8 silk_Lag_range_stage3[ SILK_PE_MAX_COMPLEX + 1 ] [ PE_MAX_NB_SUBFR ][ 2 ] =
 {
     /* Lags to search for low number of stage3 cbks */
     {
@@ -87,7 +87,7 @@ const SKP_int8 SKP_Silk_Lag_range_stage3[ SKP_Silk_PE_MAX_COMPLEX + 1 ] [ PE_MAX
     }
 };
 
-const SKP_int8 SKP_Silk_nb_cbk_searchs_stage3[ SKP_Silk_PE_MAX_COMPLEX + 1 ] = 
+const SKP_int8 silk_nb_cbk_searchs_stage3[ SILK_PE_MAX_COMPLEX + 1 ] = 
 {
     PE_NB_CBKS_STAGE3_MIN,
     PE_NB_CBKS_STAGE3_MID,
diff --git a/silk/SKP_Silk_process_NLSFs.c b/silk/silk_process_NLSFs.c
similarity index 80%
rename from silk/SKP_Silk_process_NLSFs.c
rename to silk/silk_process_NLSFs.c
index f4da0242..aa4ead42 100644
--- a/silk/SKP_Silk_process_NLSFs.c
+++ b/silk/silk_process_NLSFs.c
@@ -25,11 +25,11 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 /* Limit, stabilize, convert and quantize NLSFs */ 
-void SKP_Silk_process_NLSFs(
-    SKP_Silk_encoder_state          *psEncC,                                /* I/O  Encoder state                               */
+void silk_process_NLSFs(
+    silk_encoder_state              *psEncC,                                /* I/O  Encoder state                               */
     SKP_int16                       PredCoef_Q12[ 2 ][ MAX_LPC_ORDER ],     /* O    Prediction coefficients                     */
     SKP_int16                       pNLSF_Q15[         MAX_LPC_ORDER ],     /* I/O  Normalized LSFs (quant out) (0 - (2^15-1))  */
     const SKP_int16                 prev_NLSFq_Q15[    MAX_LPC_ORDER ]      /* I    Previous Normalized LSFs (0 - (2^15-1))     */
@@ -43,33 +43,33 @@ void SKP_Silk_process_NLSFs(
     SKP_int16   pNLSFW0_temp_Q5[ MAX_LPC_ORDER ];
 
     SKP_assert( psEncC->speech_activity_Q8 >=   0 );
-    SKP_assert( psEncC->speech_activity_Q8 <= SKP_FIX_CONST( 1.0, 8 ) );
+    SKP_assert( psEncC->speech_activity_Q8 <= SILK_FIX_CONST( 1.0, 8 ) );
 
     /***********************/
     /* Calculate mu values */
     /***********************/
     /* NLSF_mu  = 0.003 - 0.0015 * psEnc->speech_activity; */
-    NLSF_mu_Q20 = SKP_SMLAWB( SKP_FIX_CONST( 0.003, 20 ), SKP_FIX_CONST( -0.0015, 28 ), psEncC->speech_activity_Q8 );
+    NLSF_mu_Q20 = SKP_SMLAWB( SILK_FIX_CONST( 0.003, 20 ), SILK_FIX_CONST( -0.0015, 28 ), psEncC->speech_activity_Q8 );
     if( psEncC->nb_subfr == 2 ) {
         /* Multiply by 1.5 for 10 ms packets */
         NLSF_mu_Q20 = SKP_ADD_RSHIFT( NLSF_mu_Q20, NLSF_mu_Q20, 1 );
     }
 
     SKP_assert( NLSF_mu_Q20 >  0 );
-    SKP_assert( NLSF_mu_Q20 <= SKP_FIX_CONST( 0.0045, 20 ) );
+    SKP_assert( NLSF_mu_Q20 <= SILK_FIX_CONST( 0.0045, 20 ) );
 
     /* Calculate NLSF weights */
-    SKP_Silk_NLSF_VQ_weights_laroia( pNLSFW_Q5, pNLSF_Q15, psEncC->predictLPCOrder );
+    silk_NLSF_VQ_weights_laroia( pNLSFW_Q5, pNLSF_Q15, psEncC->predictLPCOrder );
 
     /* Update NLSF weights for interpolated NLSFs */
     doInterpolate = ( psEncC->useInterpolatedNLSFs == 1 ) && ( psEncC->indices.NLSFInterpCoef_Q2 < 4 );
     if( doInterpolate ) {
         /* Calculate the interpolated NLSF vector for the first half */
-        SKP_Silk_interpolate( pNLSF0_temp_Q15, prev_NLSFq_Q15, pNLSF_Q15, 
+        silk_interpolate( pNLSF0_temp_Q15, prev_NLSFq_Q15, pNLSF_Q15, 
             psEncC->indices.NLSFInterpCoef_Q2, psEncC->predictLPCOrder );
 
         /* Calculate first half NLSF weights for the interpolated NLSFs */
-        SKP_Silk_NLSF_VQ_weights_laroia( pNLSFW0_temp_Q5, pNLSF0_temp_Q15, psEncC->predictLPCOrder );
+        silk_NLSF_VQ_weights_laroia( pNLSFW0_temp_Q5, pNLSF0_temp_Q15, psEncC->predictLPCOrder );
 
         /* Update NLSF weights with contribution from first half */
         i_sqr_Q15 = SKP_LSHIFT( SKP_SMULBB( psEncC->indices.NLSFInterpCoef_Q2, psEncC->indices.NLSFInterpCoef_Q2 ), 11 );
@@ -81,20 +81,20 @@ void SKP_Silk_process_NLSFs(
     }
 
     TIC(NLSF_encode)
-    SKP_Silk_NLSF_encode( psEncC->indices.NLSFIndices, pNLSF_Q15, psEncC->psNLSF_CB, pNLSFW_Q5, 
+    silk_NLSF_encode( psEncC->indices.NLSFIndices, pNLSF_Q15, psEncC->psNLSF_CB, pNLSFW_Q5, 
         NLSF_mu_Q20, psEncC->NLSF_MSVQ_Survivors, psEncC->indices.signalType );
     TOC(NLSF_encode)
 
     /* Convert quantized NLSFs back to LPC coefficients */
-    SKP_Silk_NLSF2A_stable( PredCoef_Q12[ 1 ], pNLSF_Q15, psEncC->predictLPCOrder );
+    silk_NLSF2A_stable( PredCoef_Q12[ 1 ], pNLSF_Q15, psEncC->predictLPCOrder );
 
     if( doInterpolate ) {
         /* Calculate the interpolated, quantized LSF vector for the first half */
-        SKP_Silk_interpolate( pNLSF0_temp_Q15, prev_NLSFq_Q15, pNLSF_Q15, 
+        silk_interpolate( pNLSF0_temp_Q15, prev_NLSFq_Q15, pNLSF_Q15, 
             psEncC->indices.NLSFInterpCoef_Q2, psEncC->predictLPCOrder );
 
         /* Convert back to LPC coefficients */
-        SKP_Silk_NLSF2A_stable( PredCoef_Q12[ 0 ], pNLSF0_temp_Q15, psEncC->predictLPCOrder );
+        silk_NLSF2A_stable( PredCoef_Q12[ 0 ], pNLSF0_temp_Q15, psEncC->predictLPCOrder );
 
     } else {
         /* Copy LPC coefficients for first half from second half */
diff --git a/silk/SKP_Silk_quant_LTP_gains.c b/silk/silk_quant_LTP_gains.c
similarity index 90%
rename from silk/SKP_Silk_quant_LTP_gains.c
rename to silk/silk_quant_LTP_gains.c
index 506cded1..27be18ec 100644
--- a/silk/SKP_Silk_quant_LTP_gains.c
+++ b/silk/silk_quant_LTP_gains.c
@@ -25,9 +25,9 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
-void SKP_Silk_quant_LTP_gains(
+void silk_quant_LTP_gains(
     SKP_int16           B_Q14[ MAX_NB_SUBFR * LTP_ORDER ],              /* I/O  (un)quantized LTP gains     */
     SKP_int8            cbk_index[ MAX_NB_SUBFR ],                      /* O    Codebook Index              */
     SKP_int8            *periodicity_index,                             /* O    Periodicity Index           */
@@ -53,9 +53,9 @@ TIC(quant_LTP)
     /***************************************************/
     min_rate_dist_Q14 = SKP_int32_MAX;
     for( k = 0; k < 3; k++ ) {
-        cl_ptr_Q5  = SKP_Silk_LTP_gain_BITS_Q5_ptrs[ k ];
-        cbk_ptr_Q7 = SKP_Silk_LTP_vq_ptrs_Q7[        k ];
-        cbk_size   = SKP_Silk_LTP_vq_sizes[          k ];
+        cl_ptr_Q5  = silk_LTP_gain_BITS_Q5_ptrs[ k ];
+        cbk_ptr_Q7 = silk_LTP_vq_ptrs_Q7[        k ];
+        cbk_size   = silk_LTP_vq_sizes[          k ];
 
         /* Setup pointer to first subframe */
         W_Q18_ptr = W_Q18;
@@ -64,7 +64,7 @@ TIC(quant_LTP)
         rate_dist_Q14 = 0;
         for( j = 0; j < nb_subfr; j++ ) {
 
-            SKP_Silk_VQ_WMat_EC(
+            silk_VQ_WMat_EC(
                 &temp_idx[ j ],         /* O    index of best codebook vector                           */
                 &rate_dist_Q14_subfr,   /* O    best weighted quantization error + mu * rate            */
                 b_Q14_ptr,              /* I    input vector to be quantized                            */
@@ -91,12 +91,12 @@ TIC(quant_LTP)
         }
 
         /* Break early in low-complexity mode if rate distortion is below threshold */
-        if( lowComplexity && ( rate_dist_Q14 < SKP_Silk_LTP_gain_middle_avg_RD_Q14 ) ) {
+        if( lowComplexity && ( rate_dist_Q14 < silk_LTP_gain_middle_avg_RD_Q14 ) ) {
             break;
         }
     }
 
-    cbk_ptr_Q7 = SKP_Silk_LTP_vq_ptrs_Q7[ *periodicity_index ];
+    cbk_ptr_Q7 = silk_LTP_vq_ptrs_Q7[ *periodicity_index ];
     for( j = 0; j < nb_subfr; j++ ) {
         for( k = 0; k < LTP_ORDER; k++ ) { 
             B_Q14[ j * LTP_ORDER + k ] = SKP_LSHIFT( cbk_ptr_Q7[ cbk_index[ j ] * LTP_ORDER + k ], 7 );
diff --git a/silk/SKP_Silk_resampler.c b/silk/silk_resampler.c
similarity index 76%
rename from silk/SKP_Silk_resampler.c
rename to silk/silk_resampler.c
index 980f81fe..fa78fc95 100644
--- a/silk/SKP_Silk_resampler.c
+++ b/silk/silk_resampler.c
@@ -25,15 +25,6 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*																		*
- * File Name:	SKP_Silk_resampler.c									*
- *																		*
- * Description: Interface to collection of resamplers					*
- *                                                                      *
- * Copyright 2010 (c), Skype Limited                                    *
- * All rights reserved.													*
- *                                                                      */
-
 /* Matrix of resampling methods used:
  *                                        Fs_out (kHz)
  *                        8      12     16     24     32     44.1   48
@@ -60,7 +51,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  * Output signals sampled above 48 kHz are upsampled from at most 48 kHz.
  */
 
-#include "SKP_Silk_resampler_private.h"
+#include "silk_resampler_private.h"
 
 /* Greatest common divisor */
 static SKP_int32 gcd(
@@ -78,8 +69,8 @@ static SKP_int32 gcd(
 }
 
 /* Initialize/reset the resampler state for a given pair of input/output sampling rates */
-SKP_int SKP_Silk_resampler_init( 
-	SKP_Silk_resampler_state_struct	*S,		    /* I/O: Resampler state 			*/
+SKP_int silk_resampler_init( 
+	silk_resampler_state_struct	*S,		    /* I/O: Resampler state 			*/
 	SKP_int32							Fs_Hz_in,	/* I:	Input sampling rate (Hz)	*/
 	SKP_int32							Fs_Hz_out	/* I:	Output sampling rate (Hz)	*/
 )
@@ -87,7 +78,7 @@ SKP_int SKP_Silk_resampler_init(
     SKP_int32 cycleLen, cyclesPerBatch, up2 = 0, down2 = 0;
 
 	/* Clear state */
-	SKP_memset( S, 0, sizeof( SKP_Silk_resampler_state_struct ) );
+	SKP_memset( S, 0, sizeof( silk_resampler_state_struct ) );
 
 	/* Input checking */
 #if RESAMPLER_SUPPORT_ABOVE_48KHZ
@@ -103,10 +94,10 @@ SKP_int SKP_Silk_resampler_init(
 	/* Determine pre downsampling and post upsampling */
 	if( Fs_Hz_in > 96000 ) {
 		S->nPreDownsamplers = 2;
-        S->down_pre_function = SKP_Silk_resampler_private_down4;
+        S->down_pre_function = silk_resampler_private_down4;
     } else if( Fs_Hz_in > 48000 ) {
 		S->nPreDownsamplers = 1;
-        S->down_pre_function = SKP_Silk_resampler_down2;
+        S->down_pre_function = silk_resampler_down2;
     } else {
 		S->nPreDownsamplers = 0;
         S->down_pre_function = NULL;
@@ -114,10 +105,10 @@ SKP_int SKP_Silk_resampler_init(
 
 	if( Fs_Hz_out > 96000 ) {
 		S->nPostUpsamplers = 2;
-        S->up_post_function = SKP_Silk_resampler_private_up4;
+        S->up_post_function = silk_resampler_private_up4;
     } else if( Fs_Hz_out > 48000 ) {
 		S->nPostUpsamplers = 1;
-        S->up_post_function = SKP_Silk_resampler_up2;
+        S->up_post_function = silk_resampler_up2;
     } else {
 		S->nPostUpsamplers = 0;
         S->up_post_function = NULL;
@@ -160,81 +151,81 @@ SKP_int SKP_Silk_resampler_init(
         /* Upsample */
         if( Fs_Hz_out == SKP_MUL( Fs_Hz_in, 2 ) ) {                             /* Fs_out : Fs_in = 2 : 1 */
             /* Special case: directly use 2x upsampler */
-    	    S->resampler_function = SKP_Silk_resampler_private_up2_HQ_wrapper;
+    	    S->resampler_function = silk_resampler_private_up2_HQ_wrapper;
         } else {
 	        /* Default resampler */
-	        S->resampler_function = SKP_Silk_resampler_private_IIR_FIR;
+	        S->resampler_function = silk_resampler_private_IIR_FIR;
             up2 = 1;
             if( Fs_Hz_in > 24000 ) {
                 /* Low-quality all-pass upsampler */
-                S->up2_function = SKP_Silk_resampler_up2;
+                S->up2_function = silk_resampler_up2;
             } else {
                 /* High-quality all-pass upsampler */
-                S->up2_function = SKP_Silk_resampler_private_up2_HQ;
+                S->up2_function = silk_resampler_private_up2_HQ;
             }
         }
     } else if ( Fs_Hz_out < Fs_Hz_in ) {
         /* Downsample */
         if( SKP_MUL( Fs_Hz_out, 4 ) == SKP_MUL( Fs_Hz_in, 3 ) ) {               /* Fs_out : Fs_in = 3 : 4 */
     	    S->FIR_Fracs = 3;
-    	    S->Coefs = SKP_Silk_Resampler_3_4_COEFS;
-    	    S->resampler_function = SKP_Silk_resampler_private_down_FIR;
+    	    S->Coefs = silk_Resampler_3_4_COEFS;
+    	    S->resampler_function = silk_resampler_private_down_FIR;
         } else if( SKP_MUL( Fs_Hz_out, 3 ) == SKP_MUL( Fs_Hz_in, 2 ) ) {        /* Fs_out : Fs_in = 2 : 3 */
     	    S->FIR_Fracs = 2;
-    	    S->Coefs = SKP_Silk_Resampler_2_3_COEFS;
-    	    S->resampler_function = SKP_Silk_resampler_private_down_FIR;
+    	    S->Coefs = silk_Resampler_2_3_COEFS;
+    	    S->resampler_function = silk_resampler_private_down_FIR;
         } else if( SKP_MUL( Fs_Hz_out, 2 ) == Fs_Hz_in ) {                      /* Fs_out : Fs_in = 1 : 2 */
     	    S->FIR_Fracs = 1;
-    	    S->Coefs = SKP_Silk_Resampler_1_2_COEFS;
-    	    S->resampler_function = SKP_Silk_resampler_private_down_FIR;
+    	    S->Coefs = silk_Resampler_1_2_COEFS;
+    	    S->resampler_function = silk_resampler_private_down_FIR;
         } else if( SKP_MUL( Fs_Hz_out, 8 ) == SKP_MUL( Fs_Hz_in, 3 ) ) {        /* Fs_out : Fs_in = 3 : 8 */
     	    S->FIR_Fracs = 3;
-    	    S->Coefs = SKP_Silk_Resampler_3_8_COEFS;
-    	    S->resampler_function = SKP_Silk_resampler_private_down_FIR;
+    	    S->Coefs = silk_Resampler_3_8_COEFS;
+    	    S->resampler_function = silk_resampler_private_down_FIR;
         } else if( SKP_MUL( Fs_Hz_out, 3 ) == Fs_Hz_in ) {                      /* Fs_out : Fs_in = 1 : 3 */
     	    S->FIR_Fracs = 1;
-    	    S->Coefs = SKP_Silk_Resampler_1_3_COEFS;
-    	    S->resampler_function = SKP_Silk_resampler_private_down_FIR;
+    	    S->Coefs = silk_Resampler_1_3_COEFS;
+    	    S->resampler_function = silk_resampler_private_down_FIR;
         } else if( SKP_MUL( Fs_Hz_out, 4 ) == Fs_Hz_in ) {                      /* Fs_out : Fs_in = 1 : 4 */
     	    S->FIR_Fracs = 1;
             down2 = 1;
-    	    S->Coefs = SKP_Silk_Resampler_1_2_COEFS;
-            S->resampler_function = SKP_Silk_resampler_private_down_FIR;
+    	    S->Coefs = silk_Resampler_1_2_COEFS;
+            S->resampler_function = silk_resampler_private_down_FIR;
         } else if( SKP_MUL( Fs_Hz_out, 6 ) == Fs_Hz_in ) {                      /* Fs_out : Fs_in = 1 : 6 */
     	    S->FIR_Fracs = 1;
             down2 = 1;
-    	    S->Coefs = SKP_Silk_Resampler_1_3_COEFS;
-            S->resampler_function = SKP_Silk_resampler_private_down_FIR;
+    	    S->Coefs = silk_Resampler_1_3_COEFS;
+            S->resampler_function = silk_resampler_private_down_FIR;
         } else if( SKP_MUL( Fs_Hz_out, 441 ) == SKP_MUL( Fs_Hz_in, 80 ) ) {     /* Fs_out : Fs_in = 80 : 441 */
-    	    S->Coefs = SKP_Silk_Resampler_80_441_ARMA4_COEFS;
-    	    S->resampler_function = SKP_Silk_resampler_private_IIR_FIR;
+    	    S->Coefs = silk_Resampler_80_441_ARMA4_COEFS;
+    	    S->resampler_function = silk_resampler_private_IIR_FIR;
         } else if( SKP_MUL( Fs_Hz_out, 441 ) == SKP_MUL( Fs_Hz_in, 120 ) ) {    /* Fs_out : Fs_in = 120 : 441 */
-    	    S->Coefs = SKP_Silk_Resampler_120_441_ARMA4_COEFS;
-    	    S->resampler_function = SKP_Silk_resampler_private_IIR_FIR;
+    	    S->Coefs = silk_Resampler_120_441_ARMA4_COEFS;
+    	    S->resampler_function = silk_resampler_private_IIR_FIR;
         } else if( SKP_MUL( Fs_Hz_out, 441 ) == SKP_MUL( Fs_Hz_in, 160 ) ) {    /* Fs_out : Fs_in = 160 : 441 */
-    	    S->Coefs = SKP_Silk_Resampler_160_441_ARMA4_COEFS;
-    	    S->resampler_function = SKP_Silk_resampler_private_IIR_FIR;
+    	    S->Coefs = silk_Resampler_160_441_ARMA4_COEFS;
+    	    S->resampler_function = silk_resampler_private_IIR_FIR;
         } else if( SKP_MUL( Fs_Hz_out, 441 ) == SKP_MUL( Fs_Hz_in, 240 ) ) {    /* Fs_out : Fs_in = 240 : 441 */
-    	    S->Coefs = SKP_Silk_Resampler_240_441_ARMA4_COEFS;
-    	    S->resampler_function = SKP_Silk_resampler_private_IIR_FIR;
+    	    S->Coefs = silk_Resampler_240_441_ARMA4_COEFS;
+    	    S->resampler_function = silk_resampler_private_IIR_FIR;
         } else if( SKP_MUL( Fs_Hz_out, 441 ) == SKP_MUL( Fs_Hz_in, 320 ) ) {    /* Fs_out : Fs_in = 320 : 441 */
-    	    S->Coefs = SKP_Silk_Resampler_320_441_ARMA4_COEFS;
-    	    S->resampler_function = SKP_Silk_resampler_private_IIR_FIR;
+    	    S->Coefs = silk_Resampler_320_441_ARMA4_COEFS;
+    	    S->resampler_function = silk_resampler_private_IIR_FIR;
         } else {
 	        /* Default resampler */
-	        S->resampler_function = SKP_Silk_resampler_private_IIR_FIR;
+	        S->resampler_function = silk_resampler_private_IIR_FIR;
             up2 = 1;
             if( Fs_Hz_in > 24000 ) {
                 /* Low-quality all-pass upsampler */
-                S->up2_function = SKP_Silk_resampler_up2;
+                S->up2_function = silk_resampler_up2;
             } else {
                 /* High-quality all-pass upsampler */
-                S->up2_function = SKP_Silk_resampler_private_up2_HQ;
+                S->up2_function = silk_resampler_private_up2_HQ;
             }
         }
     } else {
         /* Input and output sampling rates are equal: copy */
-        S->resampler_function = SKP_Silk_resampler_private_copy;
+        S->resampler_function = silk_resampler_private_copy;
     }
 
     S->input2x = up2 | down2;
@@ -252,8 +243,8 @@ SKP_int SKP_Silk_resampler_init(
 }
 
 /* Clear the states of all resampling filters, without resetting sampling rate ratio */
-SKP_int SKP_Silk_resampler_clear( 
-	SKP_Silk_resampler_state_struct	*S		    /* I/O: Resampler state 			*/
+SKP_int silk_resampler_clear( 
+	silk_resampler_state_struct	*S		    /* I/O: Resampler state 			*/
 )
 {
 	/* Clear state */
@@ -268,8 +259,8 @@ SKP_int SKP_Silk_resampler_clear(
 }
 
 /* Resampler: convert from one sampling rate to another                                 */
-SKP_int SKP_Silk_resampler( 
-	SKP_Silk_resampler_state_struct	*S,		    /* I/O: Resampler state 			*/
+SKP_int silk_resampler( 
+	silk_resampler_state_struct	*S,		    /* I/O: Resampler state 			*/
 	SKP_int16							out[],	    /* O:	Output signal 				*/
 	const SKP_int16						in[],	    /* I:	Input signal				*/
 	SKP_int32							inLen	    /* I:	Number of input samples		*/
diff --git a/silk/SKP_Silk_resampler_down2.c b/silk/silk_resampler_down2.c
similarity index 77%
rename from silk/SKP_Silk_resampler_down2.c
rename to silk/silk_resampler_down2.c
index f9f6c339..4d952ec5 100644
--- a/silk/SKP_Silk_resampler_down2.c
+++ b/silk/silk_resampler_down2.c
@@ -25,19 +25,11 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*                                                                      *
- * SKP_Silk_resampler_down2.c                                         *
- *                                                                      *
- * Downsample by a factor 2, mediocre quality                           *
- *                                                                      *
- * Copyright 2010 (c), Skype Limited                                    *
- *                                                                      */
-
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_rom.h"
+#include "silk_SigProc_FIX.h"
+#include "silk_resampler_rom.h"
 
 /* Downsample by a factor 2, mediocre quality */
-void SKP_Silk_resampler_down2(
+void silk_resampler_down2(
     SKP_int32                           *S,         /* I/O: State vector [ 2 ]                  */
     SKP_int16                           *out,       /* O:   Output signal [ len ]               */
     const SKP_int16                     *in,        /* I:   Input signal [ floor(len/2) ]       */
@@ -47,8 +39,8 @@ void SKP_Silk_resampler_down2(
     SKP_int32 k, len2 = SKP_RSHIFT32( inLen, 1 );
     SKP_int32 in32, out32, Y, X;
 
-    SKP_assert( SKP_Silk_resampler_down2_0 > 0 );
-    SKP_assert( SKP_Silk_resampler_down2_1 < 0 );
+    SKP_assert( silk_resampler_down2_0 > 0 );
+    SKP_assert( silk_resampler_down2_1 < 0 );
 
     /* Internal variables and state are in Q10 format */
     for( k = 0; k < len2; k++ ) {
@@ -57,7 +49,7 @@ void SKP_Silk_resampler_down2(
 
         /* All-pass section for even input sample */
         Y      = SKP_SUB32( in32, S[ 0 ] );
-        X      = SKP_SMLAWB( Y, Y, SKP_Silk_resampler_down2_1 );
+        X      = SKP_SMLAWB( Y, Y, silk_resampler_down2_1 );
         out32  = SKP_ADD32( S[ 0 ], X );
         S[ 0 ] = SKP_ADD32( in32, X );
 
@@ -66,7 +58,7 @@ void SKP_Silk_resampler_down2(
 
         /* All-pass section for odd input sample, and add to output of previous section */
         Y      = SKP_SUB32( in32, S[ 1 ] );
-        X      = SKP_SMULWB( Y, SKP_Silk_resampler_down2_0 );
+        X      = SKP_SMULWB( Y, silk_resampler_down2_0 );
         out32  = SKP_ADD32( out32, S[ 1 ] );
         out32  = SKP_ADD32( out32, X );
         S[ 1 ] = SKP_ADD32( in32, X );
diff --git a/silk/SKP_Silk_resampler_down2_3.c b/silk/silk_resampler_down2_3.c
similarity index 69%
rename from silk/SKP_Silk_resampler_down2_3.c
rename to silk/silk_resampler_down2_3.c
index 120f296d..42abad5b 100644
--- a/silk/SKP_Silk_resampler_down2_3.c
+++ b/silk/silk_resampler_down2_3.c
@@ -25,21 +25,13 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*                                                                      *
- * SKP_Silk_resampler_down2_3.c                                       *
- *                                                                      *
- * Downsample by a factor 2/3, low quality                              *
- *                                                                      *
- * Copyright 2010 (c), Skype Limited                                    *
- *                                                                      */
-
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_private.h"
+#include "silk_SigProc_FIX.h"
+#include "silk_resampler_private.h"
 
 #define ORDER_FIR                   4
 
 /* Downsample by a factor 2/3, low quality */
-void SKP_Silk_resampler_down2_3(
+void silk_resampler_down2_3(
     SKP_int32                           *S,         /* I/O: State vector [ 6 ]                  */
     SKP_int16                           *out,       /* O:   Output signal [ floor(2*inLen/3) ]  */
     const SKP_int16                     *in,        /* I:   Input signal [ inLen ]              */
@@ -58,26 +50,26 @@ void SKP_Silk_resampler_down2_3(
         nSamplesIn = SKP_min( inLen, RESAMPLER_MAX_BATCH_SIZE_IN );
 
         /* Second-order AR filter (output in Q8) */
-        SKP_Silk_resampler_private_AR2( &S[ ORDER_FIR ], &buf[ ORDER_FIR ], in, 
-            SKP_Silk_Resampler_2_3_COEFS_LQ, nSamplesIn );
+        silk_resampler_private_AR2( &S[ ORDER_FIR ], &buf[ ORDER_FIR ], in, 
+            silk_Resampler_2_3_COEFS_LQ, nSamplesIn );
 
         /* Interpolate filtered signal */
         buf_ptr = buf;
         counter = nSamplesIn;
         while( counter > 2 ) {
             /* Inner product */
-            res_Q6 = SKP_SMULWB(         buf_ptr[ 0 ], SKP_Silk_Resampler_2_3_COEFS_LQ[ 2 ] );
-            res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 1 ], SKP_Silk_Resampler_2_3_COEFS_LQ[ 3 ] );
-            res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 2 ], SKP_Silk_Resampler_2_3_COEFS_LQ[ 5 ] );
-            res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 3 ], SKP_Silk_Resampler_2_3_COEFS_LQ[ 4 ] );
+            res_Q6 = SKP_SMULWB(         buf_ptr[ 0 ], silk_Resampler_2_3_COEFS_LQ[ 2 ] );
+            res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 1 ], silk_Resampler_2_3_COEFS_LQ[ 3 ] );
+            res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 2 ], silk_Resampler_2_3_COEFS_LQ[ 5 ] );
+            res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 3 ], silk_Resampler_2_3_COEFS_LQ[ 4 ] );
 
             /* Scale down, saturate and store in output array */
             *out++ = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( res_Q6, 6 ) );
 
-            res_Q6 = SKP_SMULWB(         buf_ptr[ 1 ], SKP_Silk_Resampler_2_3_COEFS_LQ[ 4 ] );
-            res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 2 ], SKP_Silk_Resampler_2_3_COEFS_LQ[ 5 ] );
-            res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 3 ], SKP_Silk_Resampler_2_3_COEFS_LQ[ 3 ] );
-            res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 4 ], SKP_Silk_Resampler_2_3_COEFS_LQ[ 2 ] );
+            res_Q6 = SKP_SMULWB(         buf_ptr[ 1 ], silk_Resampler_2_3_COEFS_LQ[ 4 ] );
+            res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 2 ], silk_Resampler_2_3_COEFS_LQ[ 5 ] );
+            res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 3 ], silk_Resampler_2_3_COEFS_LQ[ 3 ] );
+            res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 4 ], silk_Resampler_2_3_COEFS_LQ[ 2 ] );
 
             /* Scale down, saturate and store in output array */
             *out++ = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( res_Q6, 6 ) );
diff --git a/silk/SKP_Silk_resampler_down3.c b/silk/silk_resampler_down3.c
similarity index 77%
rename from silk/SKP_Silk_resampler_down3.c
rename to silk/silk_resampler_down3.c
index 70c86f66..cf445f76 100644
--- a/silk/SKP_Silk_resampler_down3.c
+++ b/silk/silk_resampler_down3.c
@@ -25,21 +25,13 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*                                                                      *
- * SKP_Silk_resampler_down3.c                                         *
- *                                                                      *
- * Downsample by a factor 3, low quality                                *
- *                                                                      *
- * Copyright 2010 (c), Skype Limited                                    *
- *                                                                      */
-
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_private.h"
+#include "silk_SigProc_FIX.h"
+#include "silk_resampler_private.h"
 
 #define ORDER_FIR                   6
 
 /* Downsample by a factor 3, low quality */
-void SKP_Silk_resampler_down3(
+void silk_resampler_down3(
     SKP_int32                           *S,         /* I/O: State vector [ 8 ]                  */
     SKP_int16                           *out,       /* O:   Output signal [ floor(inLen/3) ]    */
     const SKP_int16                     *in,        /* I:   Input signal [ inLen ]              */
@@ -58,17 +50,17 @@ void SKP_Silk_resampler_down3(
 		nSamplesIn = SKP_min( inLen, RESAMPLER_MAX_BATCH_SIZE_IN );
 
 	    /* Second-order AR filter (output in Q8) */
-	    SKP_Silk_resampler_private_AR2( &S[ ORDER_FIR ], &buf[ ORDER_FIR ], in, 
-            SKP_Silk_Resampler_1_3_COEFS_LQ, nSamplesIn );
+	    silk_resampler_private_AR2( &S[ ORDER_FIR ], &buf[ ORDER_FIR ], in, 
+            silk_Resampler_1_3_COEFS_LQ, nSamplesIn );
 
 		/* Interpolate filtered signal */
         buf_ptr = buf;
         counter = nSamplesIn;
         while( counter > 2 ) {
             /* Inner product */
-            res_Q6 = SKP_SMULWB(         SKP_ADD32( buf_ptr[ 0 ], buf_ptr[ 5 ] ), SKP_Silk_Resampler_1_3_COEFS_LQ[ 2 ] );
-            res_Q6 = SKP_SMLAWB( res_Q6, SKP_ADD32( buf_ptr[ 1 ], buf_ptr[ 4 ] ), SKP_Silk_Resampler_1_3_COEFS_LQ[ 3 ] );
-            res_Q6 = SKP_SMLAWB( res_Q6, SKP_ADD32( buf_ptr[ 2 ], buf_ptr[ 3 ] ), SKP_Silk_Resampler_1_3_COEFS_LQ[ 4 ] );
+            res_Q6 = SKP_SMULWB(         SKP_ADD32( buf_ptr[ 0 ], buf_ptr[ 5 ] ), silk_Resampler_1_3_COEFS_LQ[ 2 ] );
+            res_Q6 = SKP_SMLAWB( res_Q6, SKP_ADD32( buf_ptr[ 1 ], buf_ptr[ 4 ] ), silk_Resampler_1_3_COEFS_LQ[ 3 ] );
+            res_Q6 = SKP_SMLAWB( res_Q6, SKP_ADD32( buf_ptr[ 2 ], buf_ptr[ 3 ] ), silk_Resampler_1_3_COEFS_LQ[ 4 ] );
 
             /* Scale down, saturate and store in output array */
             *out++ = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( res_Q6, 6 ) );
diff --git a/silk/SKP_Silk_resampler_private.h b/silk/silk_resampler_private.h
similarity index 82%
rename from silk/SKP_Silk_resampler_private.h
rename to silk/silk_resampler_private.h
index 0402b484..fc973816 100644
--- a/silk/SKP_Silk_resampler_private.h
+++ b/silk/silk_resampler_private.h
@@ -25,32 +25,22 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*																		*
- * File Name:	SKP_Silk_resampler_structs.h							*
- *																		*
- * Description: Structs for IIR/FIR resamplers							*
- *                                                                      *
- * Copyright 2010 (c), Skype Limited                                    *
- * All rights reserved.													*
- *																		*
- *                                                                      */
-
-#ifndef SKP_Silk_RESAMPLER_H
-#define SKP_Silk_RESAMPLER_H
+#ifndef SILK_RESAMPLER_H
+#define SILK_RESAMPLER_H
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_structs.h"
-#include "SKP_Silk_resampler_rom.h"
+#include "silk_SigProc_FIX.h"
+#include "silk_resampler_structs.h"
+#include "silk_resampler_rom.h"
 
 /* Number of input samples to process in the inner loop */
 #define RESAMPLER_MAX_BATCH_SIZE_IN             480
 
 /* Description: Hybrid IIR/FIR polyphase implementation of resampling	*/
-void SKP_Silk_resampler_private_IIR_FIR(
+void silk_resampler_private_IIR_FIR(
 	void	                        *SS,		    /* I/O: Resampler state 						*/
 	SKP_int16						out[],		    /* O:	Output signal 							*/
 	const SKP_int16					in[],		    /* I:	Input signal							*/
@@ -58,7 +48,7 @@ void SKP_Silk_resampler_private_IIR_FIR(
 );
 
 /* Description: Hybrid IIR/FIR polyphase implementation of resampling	*/
-void SKP_Silk_resampler_private_down_FIR(
+void silk_resampler_private_down_FIR(
 	void	                        *SS,		    /* I/O: Resampler state 						*/
 	SKP_int16						out[],		    /* O:	Output signal 							*/
 	const SKP_int16					in[],		    /* I:	Input signal							*/
@@ -66,7 +56,7 @@ void SKP_Silk_resampler_private_down_FIR(
 );
 
 /* Copy */
-void SKP_Silk_resampler_private_copy(
+void silk_resampler_private_copy(
 	void	                        *SS,		    /* I/O: Resampler state (unused)				*/
 	SKP_int16						out[],		    /* O:	Output signal 							*/
 	const SKP_int16					in[],		    /* I:	Input signal							*/
@@ -74,7 +64,7 @@ void SKP_Silk_resampler_private_copy(
 );
 
 /* Upsample by a factor 2, high quality */
-void SKP_Silk_resampler_private_up2_HQ_wrapper(
+void silk_resampler_private_up2_HQ_wrapper(
 	void	                        *SS,		    /* I/O: Resampler state (unused)				*/
     SKP_int16                       *out,           /* O:   Output signal [ 2 * len ]               */
     const SKP_int16                 *in,            /* I:   Input signal [ len ]                    */
@@ -82,7 +72,7 @@ void SKP_Silk_resampler_private_up2_HQ_wrapper(
 );
 
 /* Upsample by a factor 2, high quality */
-void SKP_Silk_resampler_private_up2_HQ(
+void silk_resampler_private_up2_HQ(
 	SKP_int32	                    *S,			    /* I/O: Resampler state [ 6 ]					*/
     SKP_int16                       *out,           /* O:   Output signal [ 2 * len ]               */
     const SKP_int16                 *in,            /* I:   Input signal [ len ]                    */
@@ -90,7 +80,7 @@ void SKP_Silk_resampler_private_up2_HQ(
 );
 
 /* Upsample 4x, low quality */
-void SKP_Silk_resampler_private_up4(
+void silk_resampler_private_up4(
     SKP_int32                       *S,             /* I/O: State vector [ 2 ]                      */
     SKP_int16                       *out,           /* O:   Output signal [ 4 * len ]               */
     const SKP_int16                 *in,            /* I:   Input signal [ len ]                    */
@@ -98,7 +88,7 @@ void SKP_Silk_resampler_private_up4(
 );
 
 /* Downsample 4x, low quality */
-void SKP_Silk_resampler_private_down4(
+void silk_resampler_private_down4(
     SKP_int32                       *S,             /* I/O: State vector [ 2 ]                      */
     SKP_int16                       *out,           /* O:   Output signal [ floor(len/2) ]          */
     const SKP_int16                 *in,            /* I:   Input signal [ len ]                    */
@@ -106,7 +96,7 @@ void SKP_Silk_resampler_private_down4(
 );
 
 /* Second order AR filter */
-void SKP_Silk_resampler_private_AR2(
+void silk_resampler_private_AR2(
 	SKP_int32					    S[],		    /* I/O: State vector [ 2 ]			    	    */
 	SKP_int32					    out_Q8[],		/* O:	Output signal				    	    */
 	const SKP_int16				    in[],			/* I:	Input signal				    	    */
@@ -115,7 +105,7 @@ void SKP_Silk_resampler_private_AR2(
 );
 
 /* Fourth order ARMA filter */
-void SKP_Silk_resampler_private_ARMA4(
+void silk_resampler_private_ARMA4(
 	SKP_int32					    S[],		    /* I/O: State vector [ 4 ]			    	    */
 	SKP_int16					    out[],		    /* O:	Output signal				    	    */
 	const SKP_int16				    in[],			/* I:	Input signal				    	    */
@@ -127,5 +117,5 @@ void SKP_Silk_resampler_private_ARMA4(
 #ifdef __cplusplus
 }
 #endif
-#endif // SKP_Silk_RESAMPLER_H
+#endif // SILK_RESAMPLER_H
 
diff --git a/silk/SKP_Silk_resampler_private_AR2.c b/silk/silk_resampler_private_AR2.c
similarity index 81%
rename from silk/SKP_Silk_resampler_private_AR2.c
rename to silk/silk_resampler_private_AR2.c
index 5cc673ad..3279c7ee 100644
--- a/silk/SKP_Silk_resampler_private_AR2.c
+++ b/silk/silk_resampler_private_AR2.c
@@ -25,19 +25,11 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*																		*
- * SKP_Silk_resampler_private_AR2. c                                  *
- *																		*
- * Second order AR filter with single delay elements                	*
- *                                                                      *
- * Copyright 2010 (c), Skype Limited                                    *
- *                                                                      */
-
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_private.h"
+#include "silk_SigProc_FIX.h"
+#include "silk_resampler_private.h"
 
 /* Second order AR filter with single delay elements */
-void SKP_Silk_resampler_private_AR2(
+void silk_resampler_private_AR2(
 	SKP_int32					    S[],		    /* I/O: State vector [ 2 ]			    	    */
 	SKP_int32					    out_Q8[],		/* O:	Output signal				    	    */
 	const SKP_int16				    in[],			/* I:	Input signal				    	    */
diff --git a/silk/SKP_Silk_resampler_private_ARMA4.c b/silk/silk_resampler_private_ARMA4.c
similarity index 85%
rename from silk/SKP_Silk_resampler_private_ARMA4.c
rename to silk/silk_resampler_private_ARMA4.c
index 922c5753..c277238d 100644
--- a/silk/SKP_Silk_resampler_private_ARMA4.c
+++ b/silk/silk_resampler_private_ARMA4.c
@@ -25,16 +25,8 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*																		*
- * SKP_Silk_resampler_private_ARMA4.c                                 *
- *																		*
- * Fourth order ARMA filter, applies 64x gain                           *
- *                                                                      *
- * Copyright 2010 (c), Skype Limited                                    *
- *                                                                      */
-
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_private.h"
+#include "silk_SigProc_FIX.h"
+#include "silk_resampler_private.h"
 
 /* Fourth order ARMA filter                                             */
 /* Internally operates as two biquad filters in sequence.               */
@@ -42,7 +34,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /* Coeffients are stored in a packed format:                                                        */
 /*    { B1_Q14[1], B2_Q14[1], -A1_Q14[1], -A1_Q14[2], -A2_Q14[1], -A2_Q14[2], gain_Q16 }            */
 /* where it is assumed that B*_Q14[0], B*_Q14[2], A*_Q14[0] are all 16384                           */
-void SKP_Silk_resampler_private_ARMA4(
+
+void silk_resampler_private_ARMA4(
 	SKP_int32					    S[],		    /* I/O: State vector [ 4 ]			    	    */
 	SKP_int16					    out[],		    /* O:	Output signal				    	    */
 	const SKP_int16				    in[],			/* I:	Input signal				    	    */
diff --git a/silk/SKP_Silk_resampler_private_IIR_FIR.c b/silk/silk_resampler_private_IIR_FIR.c
similarity index 69%
rename from silk/SKP_Silk_resampler_private_IIR_FIR.c
rename to silk/silk_resampler_private_IIR_FIR.c
index df9a031d..ba4b9ba3 100644
--- a/silk/SKP_Silk_resampler_private_IIR_FIR.c
+++ b/silk/silk_resampler_private_IIR_FIR.c
@@ -25,18 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*																		*
- * File Name:	SKP_Silk_resampler_private_IIR_FIR.c  			    *
- *																		*
- * Description: Hybrid IIR/FIR polyphase implementation of resampling	*
- *                                                                      *
- * Copyright 2010 (c), Skype Limited                                    *
- * All rights reserved.													*
- *                                                                      */
+#include "silk_SigProc_FIX.h"
+#include "silk_resampler_private.h"
 
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_private.h"
-SKP_INLINE SKP_int16 *SKP_Silk_resampler_private_IIR_FIR_INTERPOL( 
+SKP_INLINE SKP_int16 *silk_resampler_private_IIR_FIR_INTERPOL( 
 			SKP_int16 * out, SKP_int16 * buf, SKP_int32 max_index_Q16 , SKP_int32 index_increment_Q16 ){
 	SKP_int32 index_Q16, res_Q15;
 	SKP_int16 *buf_ptr;
@@ -46,25 +38,25 @@ SKP_INLINE SKP_int16 *SKP_Silk_resampler_private_IIR_FIR_INTERPOL(
         table_index = SKP_SMULWB( index_Q16 & 0xFFFF, 144 );
         buf_ptr = &buf[ index_Q16 >> 16 ];
             
-        res_Q15 = SKP_SMULBB(          buf_ptr[ 0 ], SKP_Silk_resampler_frac_FIR_144[       table_index ][ 0 ] );
-        res_Q15 = SKP_SMLABB( res_Q15, buf_ptr[ 1 ], SKP_Silk_resampler_frac_FIR_144[       table_index ][ 1 ] );
-        res_Q15 = SKP_SMLABB( res_Q15, buf_ptr[ 2 ], SKP_Silk_resampler_frac_FIR_144[       table_index ][ 2 ] );
-        res_Q15 = SKP_SMLABB( res_Q15, buf_ptr[ 3 ], SKP_Silk_resampler_frac_FIR_144[ 143 - table_index ][ 2 ] );
-        res_Q15 = SKP_SMLABB( res_Q15, buf_ptr[ 4 ], SKP_Silk_resampler_frac_FIR_144[ 143 - table_index ][ 1 ] );
-        res_Q15 = SKP_SMLABB( res_Q15, buf_ptr[ 5 ], SKP_Silk_resampler_frac_FIR_144[ 143 - table_index ][ 0 ] );          
+        res_Q15 = SKP_SMULBB(          buf_ptr[ 0 ], silk_resampler_frac_FIR_144[       table_index ][ 0 ] );
+        res_Q15 = SKP_SMLABB( res_Q15, buf_ptr[ 1 ], silk_resampler_frac_FIR_144[       table_index ][ 1 ] );
+        res_Q15 = SKP_SMLABB( res_Q15, buf_ptr[ 2 ], silk_resampler_frac_FIR_144[       table_index ][ 2 ] );
+        res_Q15 = SKP_SMLABB( res_Q15, buf_ptr[ 3 ], silk_resampler_frac_FIR_144[ 143 - table_index ][ 2 ] );
+        res_Q15 = SKP_SMLABB( res_Q15, buf_ptr[ 4 ], silk_resampler_frac_FIR_144[ 143 - table_index ][ 1 ] );
+        res_Q15 = SKP_SMLABB( res_Q15, buf_ptr[ 5 ], silk_resampler_frac_FIR_144[ 143 - table_index ][ 0 ] );          
 		*out++ = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( res_Q15, 15 ) );
 	}
 	return out;	
 }
 /* Upsample using a combination of allpass-based 2x upsampling and FIR interpolation */
-void SKP_Silk_resampler_private_IIR_FIR(
+void silk_resampler_private_IIR_FIR(
 	void	                        *SS,		    /* I/O: Resampler state 						*/
 	SKP_int16						out[],		    /* O:	Output signal 							*/
 	const SKP_int16					in[],		    /* I:	Input signal							*/
 	SKP_int32					    inLen		    /* I:	Number of input samples					*/
 )
 {
-    SKP_Silk_resampler_state_struct *S = (SKP_Silk_resampler_state_struct *)SS;
+    silk_resampler_state_struct *S = (silk_resampler_state_struct *)SS;
 	SKP_int32 nSamplesIn;
 	SKP_int32 max_index_Q16, index_increment_Q16;
 	SKP_int16 buf[ 2 * RESAMPLER_MAX_BATCH_SIZE_IN + RESAMPLER_ORDER_FIR_144 ];
@@ -83,11 +75,11 @@ void SKP_Silk_resampler_private_IIR_FIR(
             S->up2_function( S->sIIR, &buf[ RESAMPLER_ORDER_FIR_144 ], in, nSamplesIn );
         } else {
 		    /* Fourth-order ARMA filter */
-            SKP_Silk_resampler_private_ARMA4( S->sIIR, &buf[ RESAMPLER_ORDER_FIR_144 ], in, S->Coefs, nSamplesIn );
+            silk_resampler_private_ARMA4( S->sIIR, &buf[ RESAMPLER_ORDER_FIR_144 ], in, S->Coefs, nSamplesIn );
         }
 
         max_index_Q16 = SKP_LSHIFT32( nSamplesIn, 16 + S->input2x );         /* +1 if 2x upsampling */
-		out = SKP_Silk_resampler_private_IIR_FIR_INTERPOL(out, buf, max_index_Q16, index_increment_Q16);    
+		out = silk_resampler_private_IIR_FIR_INTERPOL(out, buf, max_index_Q16, index_increment_Q16);    
 		in += nSamplesIn;
 		inLen -= nSamplesIn;
 
diff --git a/silk/SKP_Silk_resampler_private_copy.c b/silk/silk_resampler_private_copy.c
similarity index 77%
rename from silk/SKP_Silk_resampler_private_copy.c
rename to silk/silk_resampler_private_copy.c
index 7c5b0319..3eb6d6c6 100644
--- a/silk/SKP_Silk_resampler_private_copy.c
+++ b/silk/silk_resampler_private_copy.c
@@ -25,20 +25,11 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*																		*
- * File Name:	SKP_Silk_resampler_private_copy.c                     *
- *																		*
- * Description: Copy.                                                   *
- *                                                                      *
- * Copyright 2010 (c), Skype Limited                                    *
- * All rights reserved.													*
- *                                                                      */
-
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_private.h"
+#include "silk_SigProc_FIX.h"
+#include "silk_resampler_private.h"
 
 /* Copy */
-void SKP_Silk_resampler_private_copy(
+void silk_resampler_private_copy(
 	void	                        *SS,		    /* I/O: Resampler state (unused)				*/
 	SKP_int16						out[],		    /* O:	Output signal 							*/
 	const SKP_int16					in[],		    /* I:	Input signal							*/
diff --git a/silk/SKP_Silk_resampler_private_down4.c b/silk/silk_resampler_private_down4.c
similarity index 78%
rename from silk/SKP_Silk_resampler_private_down4.c
rename to silk/silk_resampler_private_down4.c
index 0d327c72..bdf42dc6 100644
--- a/silk/SKP_Silk_resampler_private_down4.c
+++ b/silk/silk_resampler_private_down4.c
@@ -25,19 +25,11 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*                                                                      *
- * SKP_Silk_resampler_private_down4.c                                 *
- *                                                                      *
- * Downsample by a factor 4                                             *
- *                                                                      *
- * Copyright 2010 (c), Skype Limited                                    *
- *                                                                      */
-
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_private.h"
+#include "silk_SigProc_FIX.h"
+#include "silk_resampler_private.h"
 
 /* Downsample by a factor 4. Note: very low quality, only use with input sampling rates above 96 kHz. */
-void SKP_Silk_resampler_private_down4(
+void silk_resampler_private_down4(
     SKP_int32                       *S,             /* I/O: State vector [ 2 ]                      */
     SKP_int16                       *out,           /* O:   Output signal [ floor(len/2) ]          */
     const SKP_int16                 *in,            /* I:   Input signal [ len ]                    */
@@ -47,8 +39,8 @@ void SKP_Silk_resampler_private_down4(
     SKP_int32 k, len4 = SKP_RSHIFT32( inLen, 2 );
     SKP_int32 in32, out32, Y, X;
 
-    SKP_assert( SKP_Silk_resampler_down2_0 > 0 );
-    SKP_assert( SKP_Silk_resampler_down2_1 < 0 );
+    SKP_assert( silk_resampler_down2_0 > 0 );
+    SKP_assert( silk_resampler_down2_1 < 0 );
 
     /* Internal variables and state are in Q10 format */
     for( k = 0; k < len4; k++ ) {
@@ -57,7 +49,7 @@ void SKP_Silk_resampler_private_down4(
 
         /* All-pass section for even input sample */
         Y      = SKP_SUB32( in32, S[ 0 ] );
-        X      = SKP_SMLAWB( Y, Y, SKP_Silk_resampler_down2_1 );
+        X      = SKP_SMLAWB( Y, Y, silk_resampler_down2_1 );
         out32  = SKP_ADD32( S[ 0 ], X );
         S[ 0 ] = SKP_ADD32( in32, X );
 
@@ -66,7 +58,7 @@ void SKP_Silk_resampler_private_down4(
 
         /* All-pass section for odd input sample */
         Y      = SKP_SUB32( in32, S[ 1 ] );
-        X      = SKP_SMULWB( Y, SKP_Silk_resampler_down2_0 );
+        X      = SKP_SMULWB( Y, silk_resampler_down2_0 );
         out32  = SKP_ADD32( out32, S[ 1 ] );
         out32  = SKP_ADD32( out32, X );
         S[ 1 ] = SKP_ADD32( in32, X );
diff --git a/silk/SKP_Silk_resampler_private_down_FIR.c b/silk/silk_resampler_private_down_FIR.c
similarity index 82%
rename from silk/SKP_Silk_resampler_private_down_FIR.c
rename to silk/silk_resampler_private_down_FIR.c
index d8e06d93..d0306a40 100644
--- a/silk/SKP_Silk_resampler_private_down_FIR.c
+++ b/silk/silk_resampler_private_down_FIR.c
@@ -25,18 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*																		*
- * File Name:	SKP_Silk_resampler_private_down_FIR.c                 *
- *																		*
- * Description: Hybrid IIR/FIR polyphase implementation of resampling	*
- *                                                                      *
- * Copyright 2010 (c), Skype Limited                                    *
- * All rights reserved.													*
- *                                                                      */
+#include "silk_SigProc_FIX.h"
+#include "silk_resampler_private.h"
 
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_private.h"
-SKP_INLINE SKP_int16 *SKP_Silk_resampler_private_down_FIR_INTERPOL0(
+SKP_INLINE SKP_int16 *silk_resampler_private_down_FIR_INTERPOL0(
 	SKP_int16 *out, SKP_int32 *buf2, const SKP_int16 *FIR_Coefs, SKP_int32 max_index_Q16, SKP_int32 index_increment_Q16){
 	
 	SKP_int32 index_Q16, res_Q6;
@@ -61,7 +53,7 @@ SKP_INLINE SKP_int16 *SKP_Silk_resampler_private_down_FIR_INTERPOL0(
 	return out;
 }
 
-SKP_INLINE SKP_int16 *SKP_Silk_resampler_private_down_FIR_INTERPOL1(
+SKP_INLINE SKP_int16 *silk_resampler_private_down_FIR_INTERPOL1(
 	SKP_int16 *out, SKP_int32 *buf2, const SKP_int16 *FIR_Coefs, SKP_int32 max_index_Q16, SKP_int32 index_increment_Q16, SKP_int32 FIR_Fracs){
 	
 	SKP_int32 index_Q16, res_Q6;
@@ -103,14 +95,14 @@ SKP_INLINE SKP_int16 *SKP_Silk_resampler_private_down_FIR_INTERPOL1(
 
 
 /* Resample with a 2x downsampler (optional), a 2nd order AR filter followed by FIR interpolation */
-void SKP_Silk_resampler_private_down_FIR(
+void silk_resampler_private_down_FIR(
 	void	                        *SS,		    /* I/O: Resampler state 						*/
 	SKP_int16						out[],		    /* O:	Output signal 							*/
 	const SKP_int16					in[],		    /* I:	Input signal							*/
 	SKP_int32					    inLen		    /* I:	Number of input samples					*/
 )
 {
-    SKP_Silk_resampler_state_struct *S = (SKP_Silk_resampler_state_struct *)SS;
+    silk_resampler_state_struct *S = (silk_resampler_state_struct *)SS;
 	SKP_int32 nSamplesIn;
 	SKP_int32 max_index_Q16, index_increment_Q16;
 	SKP_int16 buf1[ RESAMPLER_MAX_BATCH_SIZE_IN / 2 ];
@@ -129,24 +121,24 @@ void SKP_Silk_resampler_private_down_FIR(
 
         if( S->input2x == 1 ) {
             /* Downsample 2x */
-            SKP_Silk_resampler_down2( S->sDown2, buf1, in, nSamplesIn );
+            silk_resampler_down2( S->sDown2, buf1, in, nSamplesIn );
 
             nSamplesIn = SKP_RSHIFT32( nSamplesIn, 1 );
 
 		    /* Second-order AR filter (output in Q8) */
-		    SKP_Silk_resampler_private_AR2( S->sIIR, &buf2[ RESAMPLER_DOWN_ORDER_FIR ], buf1, S->Coefs, nSamplesIn );
+		    silk_resampler_private_AR2( S->sIIR, &buf2[ RESAMPLER_DOWN_ORDER_FIR ], buf1, S->Coefs, nSamplesIn );
         } else {
 		    /* Second-order AR filter (output in Q8) */
-		    SKP_Silk_resampler_private_AR2( S->sIIR, &buf2[ RESAMPLER_DOWN_ORDER_FIR ], in, S->Coefs, nSamplesIn );
+		    silk_resampler_private_AR2( S->sIIR, &buf2[ RESAMPLER_DOWN_ORDER_FIR ], in, S->Coefs, nSamplesIn );
         }
 
         max_index_Q16 = SKP_LSHIFT32( nSamplesIn, 16 );
 
 		/* Interpolate filtered signal */
         if( S->FIR_Fracs == 1 ) {
-    		out = SKP_Silk_resampler_private_down_FIR_INTERPOL0(out, buf2, FIR_Coefs, max_index_Q16, index_increment_Q16);
+    		out = silk_resampler_private_down_FIR_INTERPOL0(out, buf2, FIR_Coefs, max_index_Q16, index_increment_Q16);
         } else {
-    		out = SKP_Silk_resampler_private_down_FIR_INTERPOL1(out, buf2, FIR_Coefs, max_index_Q16, index_increment_Q16, S->FIR_Fracs);
+    		out = silk_resampler_private_down_FIR_INTERPOL1(out, buf2, FIR_Coefs, max_index_Q16, index_increment_Q16, S->FIR_Fracs);
         }
         
 		in += nSamplesIn << S->input2x;
diff --git a/silk/SKP_Silk_resampler_private_up2_HQ.c b/silk/silk_resampler_private_up2_HQ.c
similarity index 72%
rename from silk/SKP_Silk_resampler_private_up2_HQ.c
rename to silk/silk_resampler_private_up2_HQ.c
index b161f92d..860e41b5 100644
--- a/silk/SKP_Silk_resampler_private_up2_HQ.c
+++ b/silk/silk_resampler_private_up2_HQ.c
@@ -25,13 +25,13 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_private.h"
+#include "silk_SigProc_FIX.h"
+#include "silk_resampler_private.h"
 
 /* Upsample by a factor 2, high quality */
 /* Uses 2nd order allpass filters for the 2x upsampling, followed by a      */
 /* notch filter just above Nyquist.                                         */
-void SKP_Silk_resampler_private_up2_HQ(
+void silk_resampler_private_up2_HQ(
 	SKP_int32	                    *S,			    /* I/O: Resampler state [ 6 ]					*/
     SKP_int16                       *out,           /* O:   Output signal [ 2 * len ]               */
     const SKP_int16                 *in,            /* I:   Input signal [ len ]                    */
@@ -41,10 +41,10 @@ void SKP_Silk_resampler_private_up2_HQ(
     SKP_int32 k;
     SKP_int32 in32, out32_1, out32_2, Y, X;
 
-    SKP_assert( SKP_Silk_resampler_up2_hq_0[ 0 ] > 0 );
-    SKP_assert( SKP_Silk_resampler_up2_hq_0[ 1 ] < 0 );
-    SKP_assert( SKP_Silk_resampler_up2_hq_1[ 0 ] > 0 );
-    SKP_assert( SKP_Silk_resampler_up2_hq_1[ 1 ] < 0 );
+    SKP_assert( silk_resampler_up2_hq_0[ 0 ] > 0 );
+    SKP_assert( silk_resampler_up2_hq_0[ 1 ] < 0 );
+    SKP_assert( silk_resampler_up2_hq_1[ 0 ] > 0 );
+    SKP_assert( silk_resampler_up2_hq_1[ 1 ] < 0 );
     
     /* Internal variables and state are in Q10 format */
     for( k = 0; k < len; k++ ) {
@@ -53,57 +53,57 @@ void SKP_Silk_resampler_private_up2_HQ(
 
         /* First all-pass section for even output sample */
         Y       = SKP_SUB32( in32, S[ 0 ] );
-        X       = SKP_SMULWB( Y, SKP_Silk_resampler_up2_hq_0[ 0 ] );
+        X       = SKP_SMULWB( Y, silk_resampler_up2_hq_0[ 0 ] );
         out32_1 = SKP_ADD32( S[ 0 ], X );
         S[ 0 ]  = SKP_ADD32( in32, X );
 
         /* Second all-pass section for even output sample */
         Y       = SKP_SUB32( out32_1, S[ 1 ] );
-        X       = SKP_SMLAWB( Y, Y, SKP_Silk_resampler_up2_hq_0[ 1 ] );
+        X       = SKP_SMLAWB( Y, Y, silk_resampler_up2_hq_0[ 1 ] );
         out32_2 = SKP_ADD32( S[ 1 ], X );
         S[ 1 ]  = SKP_ADD32( out32_1, X );
 
         /* Biquad notch filter */
-        out32_2 = SKP_SMLAWB( out32_2, S[ 5 ], SKP_Silk_resampler_up2_hq_notch[ 2 ] );
-        out32_2 = SKP_SMLAWB( out32_2, S[ 4 ], SKP_Silk_resampler_up2_hq_notch[ 1 ] );
-        out32_1 = SKP_SMLAWB( out32_2, S[ 4 ], SKP_Silk_resampler_up2_hq_notch[ 0 ] );
+        out32_2 = SKP_SMLAWB( out32_2, S[ 5 ], silk_resampler_up2_hq_notch[ 2 ] );
+        out32_2 = SKP_SMLAWB( out32_2, S[ 4 ], silk_resampler_up2_hq_notch[ 1 ] );
+        out32_1 = SKP_SMLAWB( out32_2, S[ 4 ], silk_resampler_up2_hq_notch[ 0 ] );
         S[ 5 ]  = SKP_SUB32(  out32_2, S[ 5 ] );
         
         /* Apply gain in Q15, convert back to int16 and store to output */
         out[ 2 * k ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT32( 
-            SKP_SMLAWB( 256, out32_1, SKP_Silk_resampler_up2_hq_notch[ 3 ] ), 9 ) );
+            SKP_SMLAWB( 256, out32_1, silk_resampler_up2_hq_notch[ 3 ] ), 9 ) );
 
         /* First all-pass section for odd output sample */
         Y       = SKP_SUB32( in32, S[ 2 ] );
-        X       = SKP_SMULWB( Y, SKP_Silk_resampler_up2_hq_1[ 0 ] );
+        X       = SKP_SMULWB( Y, silk_resampler_up2_hq_1[ 0 ] );
         out32_1 = SKP_ADD32( S[ 2 ], X );
         S[ 2 ]  = SKP_ADD32( in32, X );
 
         /* Second all-pass section for odd output sample */
         Y       = SKP_SUB32( out32_1, S[ 3 ] );
-        X       = SKP_SMLAWB( Y, Y, SKP_Silk_resampler_up2_hq_1[ 1 ] );
+        X       = SKP_SMLAWB( Y, Y, silk_resampler_up2_hq_1[ 1 ] );
         out32_2 = SKP_ADD32( S[ 3 ], X );
         S[ 3 ]  = SKP_ADD32( out32_1, X );
 
         /* Biquad notch filter */
-        out32_2 = SKP_SMLAWB( out32_2, S[ 4 ], SKP_Silk_resampler_up2_hq_notch[ 2 ] );
-        out32_2 = SKP_SMLAWB( out32_2, S[ 5 ], SKP_Silk_resampler_up2_hq_notch[ 1 ] );
-        out32_1 = SKP_SMLAWB( out32_2, S[ 5 ], SKP_Silk_resampler_up2_hq_notch[ 0 ] );
+        out32_2 = SKP_SMLAWB( out32_2, S[ 4 ], silk_resampler_up2_hq_notch[ 2 ] );
+        out32_2 = SKP_SMLAWB( out32_2, S[ 5 ], silk_resampler_up2_hq_notch[ 1 ] );
+        out32_1 = SKP_SMLAWB( out32_2, S[ 5 ], silk_resampler_up2_hq_notch[ 0 ] );
         S[ 4 ]  = SKP_SUB32(  out32_2, S[ 4 ] );
         
         /* Apply gain in Q15, convert back to int16 and store to output */
         out[ 2 * k + 1 ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT32( 
-            SKP_SMLAWB( 256, out32_1, SKP_Silk_resampler_up2_hq_notch[ 3 ] ), 9 ) );
+            SKP_SMLAWB( 256, out32_1, silk_resampler_up2_hq_notch[ 3 ] ), 9 ) );
     }
 }
 
-void SKP_Silk_resampler_private_up2_HQ_wrapper(
+void silk_resampler_private_up2_HQ_wrapper(
 	void	                        *SS,		    /* I/O: Resampler state (unused)				*/
     SKP_int16                       *out,           /* O:   Output signal [ 2 * len ]               */
     const SKP_int16                 *in,            /* I:   Input signal [ len ]                    */
     SKP_int32                       len             /* I:   Number of input samples                 */
 )
 {
-    SKP_Silk_resampler_state_struct *S = (SKP_Silk_resampler_state_struct *)SS;
-    SKP_Silk_resampler_private_up2_HQ( S->sIIR, out, in, len );
+    silk_resampler_state_struct *S = (silk_resampler_state_struct *)SS;
+    silk_resampler_private_up2_HQ( S->sIIR, out, in, len );
 }
diff --git a/silk/SKP_Silk_resampler_private_up4.c b/silk/silk_resampler_private_up4.c
similarity index 88%
rename from silk/SKP_Silk_resampler_private_up4.c
rename to silk/silk_resampler_private_up4.c
index c099893d..84ccd54e 100644
--- a/silk/SKP_Silk_resampler_private_up4.c
+++ b/silk/silk_resampler_private_up4.c
@@ -25,11 +25,11 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_private.h"
+#include "silk_SigProc_FIX.h"
+#include "silk_resampler_private.h"
 
 /* Upsample by a factor 4, Note: low quality, only use with output sampling rates above 96 kHz. */
-void SKP_Silk_resampler_private_up4(
+void silk_resampler_private_up4(
     SKP_int32                       *S,             /* I/O: State vector [ 2 ]                      */
     SKP_int16                       *out,           /* O:   Output signal [ 4 * len ]               */
     const SKP_int16                 *in,            /* I:   Input signal [ len ]                    */
@@ -40,8 +40,8 @@ void SKP_Silk_resampler_private_up4(
     SKP_int32 in32, out32, Y, X;
     SKP_int16 out16;
 
-    SKP_assert( SKP_Silk_resampler_up2_lq_0 > 0 );
-    SKP_assert( SKP_Silk_resampler_up2_lq_1 < 0 );
+    SKP_assert( silk_resampler_up2_lq_0 > 0 );
+    SKP_assert( silk_resampler_up2_lq_1 < 0 );
 
     /* Internal variables and state are in Q10 format */
     for( k = 0; k < len; k++ ) {
@@ -50,7 +50,7 @@ void SKP_Silk_resampler_private_up4(
 
         /* All-pass section for even output sample */
         Y      = SKP_SUB32( in32, S[ 0 ] );
-        X      = SKP_SMULWB( Y, SKP_Silk_resampler_up2_lq_0 );
+        X      = SKP_SMULWB( Y, silk_resampler_up2_lq_0 );
         out32  = SKP_ADD32( S[ 0 ], X );
         S[ 0 ] = SKP_ADD32( in32, X );
 
@@ -61,7 +61,7 @@ void SKP_Silk_resampler_private_up4(
 
         /* All-pass section for odd output sample */
         Y      = SKP_SUB32( in32, S[ 1 ] );
-        X      = SKP_SMLAWB( Y, Y, SKP_Silk_resampler_up2_lq_1 );
+        X      = SKP_SMLAWB( Y, Y, silk_resampler_up2_lq_1 );
         out32  = SKP_ADD32( S[ 1 ], X );
         S[ 1 ] = SKP_ADD32( in32, X );
 
diff --git a/silk/SKP_Silk_resampler_rom.c b/silk/silk_resampler_rom.c
similarity index 71%
rename from silk/SKP_Silk_resampler_rom.c
rename to silk/silk_resampler_rom.c
index 5a220c53..250fc567 100644
--- a/silk/SKP_Silk_resampler_rom.c
+++ b/silk/silk_resampler_rom.c
@@ -25,73 +25,62 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*																		*
- * File Name:	SKP_Silk_resampler_rom.c								*
- *																		*
- * Description: Filter coefficients for IIR/FIR polyphase resampling	*
- * Total size: <600 Words (1.2 kB)                                      *
- *                                                                      *
- * Copyright 2010 (c), Skype Limited                                    *
- * All rights reserved.													*
- *                                                                      */
+/* Filter coefficients for IIR/FIR polyphase resampling	                *
+ * Total size: < 600 Words (1.2 kB)                                     */
 
-#include "SKP_Silk_resampler_private.h"
+#include "silk_resampler_private.h"
 
 /* Tables for 2x downsampler */
-const SKP_int16 SKP_Silk_resampler_down2_0 = 9872;
-const SKP_int16 SKP_Silk_resampler_down2_1 = 39809 - 65536;
+const SKP_int16 silk_resampler_down2_0 = 9872;
+const SKP_int16 silk_resampler_down2_1 = 39809 - 65536;
 
 /* Tables for 2x upsampler, low quality */
-const SKP_int16 SKP_Silk_resampler_up2_lq_0 = 8102;
-const SKP_int16 SKP_Silk_resampler_up2_lq_1 = 36783 - 65536;
+const SKP_int16 silk_resampler_up2_lq_0 = 8102;
+const SKP_int16 silk_resampler_up2_lq_1 = 36783 - 65536;
 
 /* Tables for 2x upsampler, high quality */
-const SKP_int16 SKP_Silk_resampler_up2_hq_0[ 2 ] = {  4280, 33727 - 65536 };
-const SKP_int16 SKP_Silk_resampler_up2_hq_1[ 2 ] = { 16295, 54015 - 65536 };
-/* Matlab code for the notch filter coefficients: */
-/* B = [1, 0.14, 1];  A = [1, 0.08, 0.84]; G = 0.89; freqz(G * B, A, 2^14, 16e3); axis([0, 8000, -10, 1]);  */
-/* fprintf('\t%6d, %6d, %6d, %6d\n', round(B(2)*2^16), round(-A(2)*2^16), round((1-A(3))*2^16), round(G*2^15)) */
-const SKP_int16 SKP_Silk_resampler_up2_hq_notch[ 4 ] = { 9175,  -5243,  10486,  29164 };
-//const SKP_int16 SKP_Silk_resampler_up2_hq_notch[ 4 ] = { 6554,  -3932,   6554,  30573 };       /* for hybrid mode? */
+const SKP_int16 silk_resampler_up2_hq_0[ 2 ] = {  4280, 33727 - 65536 };
+const SKP_int16 silk_resampler_up2_hq_1[ 2 ] = { 16295, 54015 - 65536 };
+const SKP_int16 silk_resampler_up2_hq_notch[ 4 ] = { 6554,  -3932,   6554,  30573 };
 
 /* Tables with IIR and FIR coefficients for fractional downsamplers (90 Words) */
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_3_4_COEFS[ 2 + 3 * RESAMPLER_DOWN_ORDER_FIR / 2 ] = {
+SKP_DWORD_ALIGN const SKP_int16 silk_Resampler_3_4_COEFS[ 2 + 3 * RESAMPLER_DOWN_ORDER_FIR / 2 ] = {
 	-20253, -13986,
 	    86,      7,   -151,    368,   -542,    232,  11041,  21904,
 	    39,     90,   -181,    216,    -17,   -877,   6408,  19695,
 	     2,    113,   -108,      2,    314,   -977,   2665,  15787,
 };
 
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_2_3_COEFS[ 2 + 2 * RESAMPLER_DOWN_ORDER_FIR / 2 ] = {
+SKP_DWORD_ALIGN const SKP_int16 silk_Resampler_2_3_COEFS[ 2 + 2 * RESAMPLER_DOWN_ORDER_FIR / 2 ] = {
 	-13997, -14120,
 	    60,   -174,     71,    298,   -800,    659,   9238,  17461,
 	    48,    -40,   -150,    314,   -155,   -845,   4188,  14293,
 };
 
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_1_2_COEFS[ 2 + RESAMPLER_DOWN_ORDER_FIR / 2 ] = {
+SKP_DWORD_ALIGN const SKP_int16 silk_Resampler_1_2_COEFS[ 2 + RESAMPLER_DOWN_ORDER_FIR / 2 ] = {
 	  1233, -14293,
 	   -91,    162,    169,   -342,   -505,   1332,   5281,   8742,
 };
 
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_3_8_COEFS[ 2 + 3 * RESAMPLER_DOWN_ORDER_FIR / 2 ] = {
+SKP_DWORD_ALIGN const SKP_int16 silk_Resampler_3_8_COEFS[ 2 + 3 * RESAMPLER_DOWN_ORDER_FIR / 2 ] = {
 	 12634, -14550,
 	   246,   -175,   -326,   -113,    764,   2209,   3664,   4402,
 	   171,      3,   -301,   -258,    391,   1693,   3227,   4272,
 	    88,    138,   -236,   -327,     95,   1203,   2733,   4022,
 };
 
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_1_3_COEFS[ 2 + RESAMPLER_DOWN_ORDER_FIR / 2 ] = {
+SKP_DWORD_ALIGN const SKP_int16 silk_Resampler_1_3_COEFS[ 2 + RESAMPLER_DOWN_ORDER_FIR / 2 ] = {
 	 16306, -14409,
 	    99,   -201,   -220,    -16,    572,   1483,   2433,   3043,
 };
 
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_2_3_COEFS_LQ[ 2 + 2 * 2 ] = {
+SKP_DWORD_ALIGN const SKP_int16 silk_Resampler_2_3_COEFS_LQ[ 2 + 2 * 2 ] = {
 	 -2797,  -6507,
 	  4697,  10739,
 	  1567,   8276,
 };
 
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_1_3_COEFS_LQ[ 2 + 3 ] = {
+SKP_DWORD_ALIGN const SKP_int16 silk_Resampler_1_3_COEFS_LQ[ 2 + 3 ] = {
 	 16777,  -9792,
 	   890,   1614,   2148,
 };
@@ -100,28 +89,28 @@ SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_1_3_COEFS_LQ[ 2 + 3 ] = {
 /* Tables with coefficients for 4th order ARMA filter (35 Words), in a packed format:       */
 /*    { B1_Q14[1], B2_Q14[1], -A1_Q14[1], -A1_Q14[2], -A2_Q14[1], -A2_Q14[2], gain_Q16 }    */
 /* where it is assumed that B*_Q14[0], B*_Q14[2], A*_Q14[0] are all 16384                   */
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_320_441_ARMA4_COEFS[ 7 ] = {
+SKP_DWORD_ALIGN const SKP_int16 silk_Resampler_320_441_ARMA4_COEFS[ 7 ] = {
 	 31454,  24746,  -9706,  -3386, -17911, -13243,  24797
 };
 
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_240_441_ARMA4_COEFS[ 7 ] = {
+SKP_DWORD_ALIGN const SKP_int16 silk_Resampler_240_441_ARMA4_COEFS[ 7 ] = {
 	 28721,  11254,   3189,  -2546,  -1495, -12618,  11562
 };
 
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_160_441_ARMA4_COEFS[ 7 ] = {
+SKP_DWORD_ALIGN const SKP_int16 silk_Resampler_160_441_ARMA4_COEFS[ 7 ] = {
 	 23492,  -6457,  14358,  -4856,  14654, -13008,   4456
 };
 
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_120_441_ARMA4_COEFS[ 7 ] = {
+SKP_DWORD_ALIGN const SKP_int16 silk_Resampler_120_441_ARMA4_COEFS[ 7 ] = {
 	 19311, -15569,  19489,  -6950,  21441, -13559,   2370
 };
 
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_80_441_ARMA4_COEFS[ 7 ] = {
+SKP_DWORD_ALIGN const SKP_int16 silk_Resampler_80_441_ARMA4_COEFS[ 7 ] = {
 	 13248, -23849,  24126,  -9486,  26806, -14286,   1065
 };
 
 /* Table with interplation fractions of 1/288 : 2/288 : 287/288 (432 Words) */
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_resampler_frac_FIR_144[ 144 ][ RESAMPLER_ORDER_FIR_144 / 2 ] = {
+SKP_DWORD_ALIGN const SKP_int16 silk_resampler_frac_FIR_144[ 144 ][ RESAMPLER_ORDER_FIR_144 / 2 ] = {
 	{  -25,    58, 32526},
 	{   -8,   -69, 32461},
 	{    8,  -195, 32393},
diff --git a/silk/SKP_Silk_resampler_rom.h b/silk/silk_resampler_rom.h
similarity index 59%
rename from silk/SKP_Silk_resampler_rom.h
rename to silk/silk_resampler_rom.h
index e541f508..49d82af2 100644
--- a/silk/SKP_Silk_resampler_rom.h
+++ b/silk/silk_resampler_rom.h
@@ -25,55 +25,55 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#ifndef _SKP_SILK_FIX_RESAMPLER_ROM_H_
-#define _SKP_SILK_FIX_RESAMPLER_ROM_H_
+#ifndef _SILK_FIX_RESAMPLER_ROM_H_
+#define _SILK_FIX_RESAMPLER_ROM_H_
 
 #ifdef  __cplusplus
 extern "C"
 {
 #endif
 
-#include "SKP_Silk_typedef.h"
-#include "SKP_Silk_resampler_structs.h"
+#include "silk_typedef.h"
+#include "silk_resampler_structs.h"
 
 #define RESAMPLER_DOWN_ORDER_FIR                16
 #define RESAMPLER_ORDER_FIR_144                 6
 
 
 /* Tables for 2x downsampler. Values above 32767 intentionally wrap to a negative value. */
-extern const SKP_int16 SKP_Silk_resampler_down2_0;
-extern const SKP_int16 SKP_Silk_resampler_down2_1;
+extern const SKP_int16 silk_resampler_down2_0;
+extern const SKP_int16 silk_resampler_down2_1;
 
 /* Tables for 2x upsampler, low quality. Values above 32767 intentionally wrap to a negative value. */
-extern const SKP_int16 SKP_Silk_resampler_up2_lq_0;
-extern const SKP_int16 SKP_Silk_resampler_up2_lq_1;
+extern const SKP_int16 silk_resampler_up2_lq_0;
+extern const SKP_int16 silk_resampler_up2_lq_1;
 
 /* Tables for 2x upsampler, high quality. Values above 32767 intentionally wrap to a negative value. */
-extern const SKP_int16 SKP_Silk_resampler_up2_hq_0[ 2 ];
-extern const SKP_int16 SKP_Silk_resampler_up2_hq_1[ 2 ];
-extern const SKP_int16 SKP_Silk_resampler_up2_hq_notch[ 4 ];
+extern const SKP_int16 silk_resampler_up2_hq_0[ 2 ];
+extern const SKP_int16 silk_resampler_up2_hq_1[ 2 ];
+extern const SKP_int16 silk_resampler_up2_hq_notch[ 4 ];
 
 /* Tables with IIR and FIR coefficients for fractional downsamplers */
-extern const SKP_int16 SKP_Silk_Resampler_3_4_COEFS[ 2 + 3 * RESAMPLER_DOWN_ORDER_FIR / 2 ];
-extern const SKP_int16 SKP_Silk_Resampler_2_3_COEFS[ 2 + 2 * RESAMPLER_DOWN_ORDER_FIR / 2 ];
-extern const SKP_int16 SKP_Silk_Resampler_1_2_COEFS[ 2 +     RESAMPLER_DOWN_ORDER_FIR / 2 ];
-extern const SKP_int16 SKP_Silk_Resampler_3_8_COEFS[ 2 + 3 * RESAMPLER_DOWN_ORDER_FIR / 2 ];
-extern const SKP_int16 SKP_Silk_Resampler_1_3_COEFS[ 2 +     RESAMPLER_DOWN_ORDER_FIR / 2 ];
-extern const SKP_int16 SKP_Silk_Resampler_2_3_COEFS_LQ[ 2 + 2 * 2 ];
-extern const SKP_int16 SKP_Silk_Resampler_1_3_COEFS_LQ[ 2 + 3 ];
+extern const SKP_int16 silk_Resampler_3_4_COEFS[ 2 + 3 * RESAMPLER_DOWN_ORDER_FIR / 2 ];
+extern const SKP_int16 silk_Resampler_2_3_COEFS[ 2 + 2 * RESAMPLER_DOWN_ORDER_FIR / 2 ];
+extern const SKP_int16 silk_Resampler_1_2_COEFS[ 2 +     RESAMPLER_DOWN_ORDER_FIR / 2 ];
+extern const SKP_int16 silk_Resampler_3_8_COEFS[ 2 + 3 * RESAMPLER_DOWN_ORDER_FIR / 2 ];
+extern const SKP_int16 silk_Resampler_1_3_COEFS[ 2 +     RESAMPLER_DOWN_ORDER_FIR / 2 ];
+extern const SKP_int16 silk_Resampler_2_3_COEFS_LQ[ 2 + 2 * 2 ];
+extern const SKP_int16 silk_Resampler_1_3_COEFS_LQ[ 2 + 3 ];
 
 /* Tables with coefficients for 4th order ARMA filter */
-extern const SKP_int16 SKP_Silk_Resampler_320_441_ARMA4_COEFS[ 7 ];
-extern const SKP_int16 SKP_Silk_Resampler_240_441_ARMA4_COEFS[ 7 ];
-extern const SKP_int16 SKP_Silk_Resampler_160_441_ARMA4_COEFS[ 7 ];
-extern const SKP_int16 SKP_Silk_Resampler_120_441_ARMA4_COEFS[ 7 ];
-extern const SKP_int16 SKP_Silk_Resampler_80_441_ARMA4_COEFS[ 7 ];
+extern const SKP_int16 silk_Resampler_320_441_ARMA4_COEFS[ 7 ];
+extern const SKP_int16 silk_Resampler_240_441_ARMA4_COEFS[ 7 ];
+extern const SKP_int16 silk_Resampler_160_441_ARMA4_COEFS[ 7 ];
+extern const SKP_int16 silk_Resampler_120_441_ARMA4_COEFS[ 7 ];
+extern const SKP_int16 silk_Resampler_80_441_ARMA4_COEFS[ 7 ];
 
 /* Table with interplation fractions of 1/288 : 2/288 : 287/288 (432 Words) */
-extern const SKP_int16 SKP_Silk_resampler_frac_FIR_144[ 144 ][ RESAMPLER_ORDER_FIR_144 / 2 ];
+extern const SKP_int16 silk_resampler_frac_FIR_144[ 144 ][ RESAMPLER_ORDER_FIR_144 / 2 ];
 
 #ifdef  __cplusplus
 }
 #endif
 
-#endif // _SKP_SILK_FIX_RESAMPLER_ROM_H_
+#endif // _SILK_FIX_RESAMPLER_ROM_H_
diff --git a/silk/SKP_Silk_resampler_structs.h b/silk/silk_resampler_structs.h
similarity index 72%
rename from silk/SKP_Silk_resampler_structs.h
rename to silk/silk_resampler_structs.h
index 292422b7..e00e4117 100644
--- a/silk/SKP_Silk_resampler_structs.h
+++ b/silk/silk_resampler_structs.h
@@ -25,33 +25,23 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*																		*
- * File Name:	SKP_Silk_resampler_structs.h							*
- *																		*
- * Description: Structs for IIR/FIR resamplers							*
- *                                                                      *
- * Copyright 2010 (c), Skype Limited                                    *
- * All rights reserved.													*
- *																		*
- *                                                                      */
-
-#ifndef SKP_Silk_RESAMPLER_STRUCTS_H
-#define SKP_Silk_RESAMPLER_STRUCTS_H
+#ifndef SILK_RESAMPLER_STRUCTS_H
+#define SILK_RESAMPLER_STRUCTS_H
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 /* Flag to enable support for input/output sampling rates above 48 kHz. Turn off for embedded devices */
-#define RESAMPLER_SUPPORT_ABOVE_48KHZ                    1
+#define RESAMPLER_SUPPORT_ABOVE_48KHZ                1
 
-#define SKP_Silk_RESAMPLER_MAX_FIR_ORDER                 16
-#define SKP_Silk_RESAMPLER_MAX_IIR_ORDER                 6
+#define SILK_RESAMPLER_MAX_FIR_ORDER                 16
+#define SILK_RESAMPLER_MAX_IIR_ORDER                 6
 
 
-typedef struct _SKP_Silk_resampler_state_struct{
-	SKP_int32       sIIR[ SKP_Silk_RESAMPLER_MAX_IIR_ORDER ];        /* this must be the first element of this struct */
-	SKP_int32       sFIR[ SKP_Silk_RESAMPLER_MAX_FIR_ORDER ];
+typedef struct _silk_resampler_state_struct{
+	SKP_int32       sIIR[ SILK_RESAMPLER_MAX_IIR_ORDER ];        /* this must be the first element of this struct */
+	SKP_int32       sFIR[ SILK_RESAMPLER_MAX_FIR_ORDER ];
 	SKP_int32       sDown2[ 2 ];
 	void            (*resampler_function)( void *, SKP_int16 *, const SKP_int16 *, SKP_int32 );
 	void            (*up2_function)(  SKP_int32 *, SKP_int16 *, const SKP_int16 *, SKP_int32 );
@@ -71,10 +61,10 @@ typedef struct _SKP_Silk_resampler_state_struct{
 	SKP_int32       nPostUpsamplers;
 #endif
 	SKP_int32 magic_number;
-} SKP_Silk_resampler_state_struct;
+} silk_resampler_state_struct;
 
 #ifdef __cplusplus
 }
 #endif
-#endif // SKP_Silk_RESAMPLER_STRUCTS_H
+#endif // SILK_RESAMPLER_STRUCTS_H
 
diff --git a/silk/SKP_Silk_resampler_up2.c b/silk/silk_resampler_up2.c
similarity index 77%
rename from silk/SKP_Silk_resampler_up2.c
rename to silk/silk_resampler_up2.c
index 718b2740..b27636d4 100644
--- a/silk/SKP_Silk_resampler_up2.c
+++ b/silk/silk_resampler_up2.c
@@ -25,19 +25,11 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*                                                                      *
- * SKP_Silk_resampler_up2.c                                           *
- *                                                                      *
- * Upsample by a factor 2, low quality                                  *
- *                                                                      *
- * Copyright 2010 (c), Skype Limited                                    *
- *                                                                      */
-
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_rom.h"
+#include "silk_SigProc_FIX.h"
+#include "silk_resampler_rom.h"
 
 /* Upsample by a factor 2, low quality */
-void SKP_Silk_resampler_up2(
+void silk_resampler_up2(
     SKP_int32                           *S,         /* I/O: State vector [ 2 ]                  */
     SKP_int16                           *out,       /* O:   Output signal [ 2 * len ]           */
     const SKP_int16                     *in,        /* I:   Input signal [ len ]                */
@@ -47,8 +39,8 @@ void SKP_Silk_resampler_up2(
     SKP_int32 k;
     SKP_int32 in32, out32, Y, X;
 
-    SKP_assert( SKP_Silk_resampler_up2_lq_0 > 0 );
-    SKP_assert( SKP_Silk_resampler_up2_lq_1 < 0 );
+    SKP_assert( silk_resampler_up2_lq_0 > 0 );
+    SKP_assert( silk_resampler_up2_lq_1 < 0 );
     /* Internal variables and state are in Q10 format */
     for( k = 0; k < len; k++ ) {
         /* Convert to Q10 */
@@ -56,7 +48,7 @@ void SKP_Silk_resampler_up2(
 
         /* All-pass section for even output sample */
         Y      = SKP_SUB32( in32, S[ 0 ] );
-        X      = SKP_SMULWB( Y, SKP_Silk_resampler_up2_lq_0 );
+        X      = SKP_SMULWB( Y, silk_resampler_up2_lq_0 );
         out32  = SKP_ADD32( S[ 0 ], X );
         S[ 0 ] = SKP_ADD32( in32, X );
 
@@ -65,7 +57,7 @@ void SKP_Silk_resampler_up2(
 
         /* All-pass section for odd output sample */
         Y      = SKP_SUB32( in32, S[ 1 ] );
-        X      = SKP_SMLAWB( Y, Y, SKP_Silk_resampler_up2_lq_1 );
+        X      = SKP_SMLAWB( Y, Y, silk_resampler_up2_lq_1 );
         out32  = SKP_ADD32( S[ 1 ], X );
         S[ 1 ] = SKP_ADD32( in32, X );
 
diff --git a/silk/SKP_Silk_scale_copy_vector16.c b/silk/silk_scale_copy_vector16.c
similarity index 95%
rename from silk/SKP_Silk_scale_copy_vector16.c
rename to silk/silk_scale_copy_vector16.c
index 2fa4bf62..46eb095a 100644
--- a/silk/SKP_Silk_scale_copy_vector16.c
+++ b/silk/silk_scale_copy_vector16.c
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
 /* Copy and multiply a vector by a constant */
-void SKP_Silk_scale_copy_vector16( 
+void silk_scale_copy_vector16( 
     SKP_int16           *data_out, 
     const SKP_int16     *data_in, 
     SKP_int32           gain_Q16,                   /* (I):   gain in Q16   */
diff --git a/silk/SKP_Silk_scale_vector.c b/silk/silk_scale_vector.c
similarity index 94%
rename from silk/SKP_Silk_scale_vector.c
rename to silk/silk_scale_vector.c
index a6734183..c91fc6ae 100644
--- a/silk/SKP_Silk_scale_vector.c
+++ b/silk/silk_scale_vector.c
@@ -25,10 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
 /* Multiply a vector by a constant */
-void SKP_Silk_scale_vector32_Q26_lshift_18( 
+void silk_scale_vector32_Q26_lshift_18( 
     SKP_int32           *data1,                     /* (I/O): Q0/Q18        */
     SKP_int32           gain_Q26,                   /* (I):   Q26           */
     SKP_int             dataSize                    /* (I):   length        */
diff --git a/silk/SKP_Silk_schur.c b/silk/silk_schur.c
similarity index 80%
rename from silk/SKP_Silk_schur.c
rename to silk/silk_schur.c
index 6815612b..7851d41d 100644
--- a/silk/SKP_Silk_schur.c
+++ b/silk/silk_schur.c
@@ -25,30 +25,22 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*                                                                      *
- * SKP_Silk_schur.c                                                   *
- *                                                                      *
- * Calculates the reflection coefficients from the correlation sequence *
- *                                                                      *
- * Copyright 2008 (c), Skype Limited                                    *
- * Date: 080103                                                         *
- *                                                                      */
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
 /* Faster than schur64(), but much less accurate.                       */
 /* uses SMLAWB(), requiring armv5E and higher.                          */ 
-SKP_int32 SKP_Silk_schur(                     /* O:    Returns residual energy                     */
+SKP_int32 silk_schur(                     /* O:    Returns residual energy                     */
     SKP_int16            *rc_Q15,               /* O:    reflection coefficients [order] Q15         */
     const SKP_int32      *c,                    /* I:    correlations [order+1]                      */
     const SKP_int32      order                  /* I:    prediction order                            */
 )
 {
     SKP_int        k, n, lz;
-    SKP_int32    C[ SKP_Silk_MAX_ORDER_LPC + 1 ][ 2 ];
+    SKP_int32    C[ SILK_MAX_ORDER_LPC + 1 ][ 2 ];
     SKP_int32    Ctmp1, Ctmp2, rc_tmp_Q15;
 
     /* Get number of leading zeros */
-    lz = SKP_Silk_CLZ32( c[ 0 ] );
+    lz = silk_CLZ32( c[ 0 ] );
 
     /* Copy correlations and adjust level to Q30 */
     if( lz < 2 ) {
diff --git a/silk/SKP_Silk_schur64.c b/silk/silk_schur64.c
similarity index 90%
rename from silk/SKP_Silk_schur64.c
rename to silk/silk_schur64.c
index f2cc70ac..a830f4a5 100644
--- a/silk/SKP_Silk_schur64.c
+++ b/silk/silk_schur64.c
@@ -25,18 +25,18 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
 /* Slower than schur(), but more accurate.                              */
 /* Uses SMULL(), available on armv4                                     */ 
-SKP_int32 SKP_Silk_schur64(                      /* O:    Returns residual energy                     */
+SKP_int32 silk_schur64(                      /* O:    Returns residual energy                     */
     SKP_int32            rc_Q16[],               /* O:    Reflection coefficients [order] Q16         */
     const SKP_int32      c[],                    /* I:    Correlations [order+1]                      */
     SKP_int32            order                   /* I:    Prediction order                            */
 )
 {
     SKP_int   k, n;
-    SKP_int32 C[ SKP_Silk_MAX_ORDER_LPC + 1 ][ 2 ];
+    SKP_int32 C[ SILK_MAX_ORDER_LPC + 1 ][ 2 ];
     SKP_int32 Ctmp1_Q30, Ctmp2_Q30, rc_tmp_Q31;
 
     /* Check for invalid input */
@@ -51,7 +51,7 @@ SKP_int32 SKP_Silk_schur64(                      /* O:    Returns residual energ
 
     for( k = 0; k < order; k++ ) {
         /* Get reflection coefficient: divide two Q30 values and get result in Q31 */
-        rc_tmp_Q31 = SKP_DIV32_varQ( -C[ k + 1 ][ 0 ], C[ 0 ][ 1 ], 31 );
+        rc_tmp_Q31 = silk_DIV32_varQ( -C[ k + 1 ][ 0 ], C[ 0 ][ 1 ], 31 );
 
         /* Save the output */
         rc_Q16[ k ] = SKP_RSHIFT_ROUND( rc_tmp_Q31, 15 );
diff --git a/silk/SKP_Silk_shell_coder.c b/silk/silk_shell_coder.c
similarity index 69%
rename from silk/SKP_Silk_shell_coder.c
rename to silk/silk_shell_coder.c
index 930204b4..97cd8263 100644
--- a/silk/SKP_Silk_shell_coder.c
+++ b/silk/silk_shell_coder.c
@@ -25,7 +25,7 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 /* shell coder; pulse-subframe length is hardcoded */
 
@@ -49,7 +49,7 @@ SKP_INLINE void encode_split(
 )
 {
     if( p > 0 ) {
-        ec_enc_icdf( psRangeEnc, p_child1, &shell_table[ SKP_Silk_shell_code_table_offsets[ p ] ], 8 );
+        ec_enc_icdf( psRangeEnc, p_child1, &shell_table[ silk_shell_code_table_offsets[ p ] ], 8 );
     }
 }
 
@@ -62,7 +62,7 @@ SKP_INLINE void decode_split(
 )
 {
     if( p > 0 ) {
-        p_child1[ 0 ] = ec_dec_icdf( psRangeDec, &shell_table[ SKP_Silk_shell_code_table_offsets[ p ] ], 8 );
+        p_child1[ 0 ] = ec_dec_icdf( psRangeDec, &shell_table[ silk_shell_code_table_offsets[ p ] ], 8 );
         p_child2[ 0 ] = p - p_child1[ 0 ];
     } else {
         p_child1[ 0 ] = 0;
@@ -71,7 +71,7 @@ SKP_INLINE void decode_split(
 }
 
 /* Shell encoder, operates on one shell code frame of 16 pulses */
-void SKP_Silk_shell_encoder(
+void silk_shell_encoder(
     ec_enc                      *psRangeEnc,        /* I/O  compressor data structure                   */
     const SKP_int               *pulses0            /* I    data: nonnegative pulse amplitudes          */
 )
@@ -87,32 +87,32 @@ void SKP_Silk_shell_encoder(
     combine_pulses( pulses3, pulses2, 2 );
     combine_pulses( pulses4, pulses3, 1 );
 
-    encode_split( psRangeEnc, pulses3[  0 ], pulses4[ 0 ], SKP_Silk_shell_code_table3 );
+    encode_split( psRangeEnc, pulses3[  0 ], pulses4[ 0 ], silk_shell_code_table3 );
 
-    encode_split( psRangeEnc, pulses2[  0 ], pulses3[ 0 ], SKP_Silk_shell_code_table2 );
+    encode_split( psRangeEnc, pulses2[  0 ], pulses3[ 0 ], silk_shell_code_table2 );
 
-    encode_split( psRangeEnc, pulses1[  0 ], pulses2[ 0 ], SKP_Silk_shell_code_table1 );
-    encode_split( psRangeEnc, pulses0[  0 ], pulses1[ 0 ], SKP_Silk_shell_code_table0 );
-    encode_split( psRangeEnc, pulses0[  2 ], pulses1[ 1 ], SKP_Silk_shell_code_table0 );
+    encode_split( psRangeEnc, pulses1[  0 ], pulses2[ 0 ], silk_shell_code_table1 );
+    encode_split( psRangeEnc, pulses0[  0 ], pulses1[ 0 ], silk_shell_code_table0 );
+    encode_split( psRangeEnc, pulses0[  2 ], pulses1[ 1 ], silk_shell_code_table0 );
 
-    encode_split( psRangeEnc, pulses1[  2 ], pulses2[ 1 ], SKP_Silk_shell_code_table1 );
-    encode_split( psRangeEnc, pulses0[  4 ], pulses1[ 2 ], SKP_Silk_shell_code_table0 );
-    encode_split( psRangeEnc, pulses0[  6 ], pulses1[ 3 ], SKP_Silk_shell_code_table0 );
+    encode_split( psRangeEnc, pulses1[  2 ], pulses2[ 1 ], silk_shell_code_table1 );
+    encode_split( psRangeEnc, pulses0[  4 ], pulses1[ 2 ], silk_shell_code_table0 );
+    encode_split( psRangeEnc, pulses0[  6 ], pulses1[ 3 ], silk_shell_code_table0 );
 
-    encode_split( psRangeEnc, pulses2[  2 ], pulses3[ 1 ], SKP_Silk_shell_code_table2 );
+    encode_split( psRangeEnc, pulses2[  2 ], pulses3[ 1 ], silk_shell_code_table2 );
 
-    encode_split( psRangeEnc, pulses1[  4 ], pulses2[ 2 ], SKP_Silk_shell_code_table1 );
-    encode_split( psRangeEnc, pulses0[  8 ], pulses1[ 4 ], SKP_Silk_shell_code_table0 );
-    encode_split( psRangeEnc, pulses0[ 10 ], pulses1[ 5 ], SKP_Silk_shell_code_table0 );
+    encode_split( psRangeEnc, pulses1[  4 ], pulses2[ 2 ], silk_shell_code_table1 );
+    encode_split( psRangeEnc, pulses0[  8 ], pulses1[ 4 ], silk_shell_code_table0 );
+    encode_split( psRangeEnc, pulses0[ 10 ], pulses1[ 5 ], silk_shell_code_table0 );
 
-    encode_split( psRangeEnc, pulses1[  6 ], pulses2[ 3 ], SKP_Silk_shell_code_table1 );
-    encode_split( psRangeEnc, pulses0[ 12 ], pulses1[ 6 ], SKP_Silk_shell_code_table0 );
-    encode_split( psRangeEnc, pulses0[ 14 ], pulses1[ 7 ], SKP_Silk_shell_code_table0 );
+    encode_split( psRangeEnc, pulses1[  6 ], pulses2[ 3 ], silk_shell_code_table1 );
+    encode_split( psRangeEnc, pulses0[ 12 ], pulses1[ 6 ], silk_shell_code_table0 );
+    encode_split( psRangeEnc, pulses0[ 14 ], pulses1[ 7 ], silk_shell_code_table0 );
 }
 
 
 /* Shell decoder, operates on one shell code frame of 16 pulses */
-void SKP_Silk_shell_decoder(
+void silk_shell_decoder(
     SKP_int                         *pulses0,           /* O    data: nonnegative pulse amplitudes          */
     ec_dec                          *psRangeDec,        /* I/O  Compressor data structure                   */
     const SKP_int                   pulses4             /* I    number of pulses per pulse-subframe         */
@@ -123,25 +123,25 @@ void SKP_Silk_shell_decoder(
     /* this function operates on one shell code frame of 16 pulses */
     SKP_assert( SHELL_CODEC_FRAME_LENGTH == 16 );
 
-    decode_split( &pulses3[  0 ], &pulses3[  1 ], psRangeDec, pulses4,      SKP_Silk_shell_code_table3 );
+    decode_split( &pulses3[  0 ], &pulses3[  1 ], psRangeDec, pulses4,      silk_shell_code_table3 );
 
-    decode_split( &pulses2[  0 ], &pulses2[  1 ], psRangeDec, pulses3[ 0 ], SKP_Silk_shell_code_table2 );
+    decode_split( &pulses2[  0 ], &pulses2[  1 ], psRangeDec, pulses3[ 0 ], silk_shell_code_table2 );
 
-    decode_split( &pulses1[  0 ], &pulses1[  1 ], psRangeDec, pulses2[ 0 ], SKP_Silk_shell_code_table1 );
-    decode_split( &pulses0[  0 ], &pulses0[  1 ], psRangeDec, pulses1[ 0 ], SKP_Silk_shell_code_table0 );
-    decode_split( &pulses0[  2 ], &pulses0[  3 ], psRangeDec, pulses1[ 1 ], SKP_Silk_shell_code_table0 );
+    decode_split( &pulses1[  0 ], &pulses1[  1 ], psRangeDec, pulses2[ 0 ], silk_shell_code_table1 );
+    decode_split( &pulses0[  0 ], &pulses0[  1 ], psRangeDec, pulses1[ 0 ], silk_shell_code_table0 );
+    decode_split( &pulses0[  2 ], &pulses0[  3 ], psRangeDec, pulses1[ 1 ], silk_shell_code_table0 );
 
-    decode_split( &pulses1[  2 ], &pulses1[  3 ], psRangeDec, pulses2[ 1 ], SKP_Silk_shell_code_table1 );
-    decode_split( &pulses0[  4 ], &pulses0[  5 ], psRangeDec, pulses1[ 2 ], SKP_Silk_shell_code_table0 );
-    decode_split( &pulses0[  6 ], &pulses0[  7 ], psRangeDec, pulses1[ 3 ], SKP_Silk_shell_code_table0 );
+    decode_split( &pulses1[  2 ], &pulses1[  3 ], psRangeDec, pulses2[ 1 ], silk_shell_code_table1 );
+    decode_split( &pulses0[  4 ], &pulses0[  5 ], psRangeDec, pulses1[ 2 ], silk_shell_code_table0 );
+    decode_split( &pulses0[  6 ], &pulses0[  7 ], psRangeDec, pulses1[ 3 ], silk_shell_code_table0 );
 
-    decode_split( &pulses2[  2 ], &pulses2[  3 ], psRangeDec, pulses3[ 1 ], SKP_Silk_shell_code_table2 );
+    decode_split( &pulses2[  2 ], &pulses2[  3 ], psRangeDec, pulses3[ 1 ], silk_shell_code_table2 );
 
-    decode_split( &pulses1[  4 ], &pulses1[  5 ], psRangeDec, pulses2[ 2 ], SKP_Silk_shell_code_table1 );
-    decode_split( &pulses0[  8 ], &pulses0[  9 ], psRangeDec, pulses1[ 4 ], SKP_Silk_shell_code_table0 );
-    decode_split( &pulses0[ 10 ], &pulses0[ 11 ], psRangeDec, pulses1[ 5 ], SKP_Silk_shell_code_table0 );
+    decode_split( &pulses1[  4 ], &pulses1[  5 ], psRangeDec, pulses2[ 2 ], silk_shell_code_table1 );
+    decode_split( &pulses0[  8 ], &pulses0[  9 ], psRangeDec, pulses1[ 4 ], silk_shell_code_table0 );
+    decode_split( &pulses0[ 10 ], &pulses0[ 11 ], psRangeDec, pulses1[ 5 ], silk_shell_code_table0 );
 
-    decode_split( &pulses1[  6 ], &pulses1[  7 ], psRangeDec, pulses2[ 3 ], SKP_Silk_shell_code_table1 );
-    decode_split( &pulses0[ 12 ], &pulses0[ 13 ], psRangeDec, pulses1[ 6 ], SKP_Silk_shell_code_table0 );
-    decode_split( &pulses0[ 14 ], &pulses0[ 15 ], psRangeDec, pulses1[ 7 ], SKP_Silk_shell_code_table0 );
+    decode_split( &pulses1[  6 ], &pulses1[  7 ], psRangeDec, pulses2[ 3 ], silk_shell_code_table1 );
+    decode_split( &pulses0[ 12 ], &pulses0[ 13 ], psRangeDec, pulses1[ 6 ], silk_shell_code_table0 );
+    decode_split( &pulses0[ 14 ], &pulses0[ 15 ], psRangeDec, pulses1[ 7 ], silk_shell_code_table0 );
 }
diff --git a/silk/SKP_Silk_sigm_Q15.c b/silk/silk_sigm_Q15.c
similarity index 78%
rename from silk/SKP_Silk_sigm_Q15.c
rename to silk/silk_sigm_Q15.c
index 5b4168c1..a0df8f49 100644
--- a/silk/SKP_Silk_sigm_Q15.c
+++ b/silk/silk_sigm_Q15.c
@@ -25,18 +25,10 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-/*                                                                      *
- * SKP_sigm_Q15.c                                                       *
- *                                                                      *
- * Approximate sigmoid function                                         *
- *                                                                      *
- * Copyright 2006 (c), Skype Limited                                    *
- * Date: 060221                                                         *
- *                                                                      */
-#include "SKP_Silk_SigProc_FIX.h"
-/********************************/
-/* approximate sigmoid function */
-/********************************/
+/* Approximate sigmoid function */
+
+#include "silk_SigProc_FIX.h"
+
 /* fprintf(1, '%d, ', round(1024 * ([1 ./ (1 + exp(-(1:5))), 1] - 1 ./ (1 + exp(-(0:5)))))); */
 static const SKP_int32 sigm_LUT_slope_Q10[ 6 ] = {
     237, 153, 73, 30, 12, 7
@@ -50,7 +42,7 @@ static const SKP_int32 sigm_LUT_neg_Q15[ 6 ] = {
     16384, 8812, 3906, 1554, 589, 219
 };
 
-SKP_int SKP_Silk_sigm_Q15( SKP_int in_Q5 ) 
+SKP_int silk_sigm_Q15( SKP_int in_Q5 ) 
 {
     SKP_int ind;
 
diff --git a/silk/SKP_Silk_sort.c b/silk/silk_sort.c
similarity index 77%
rename from silk/SKP_Silk_sort.c
rename to silk/silk_sort.c
index 6f45f158..53661679 100644
--- a/silk/SKP_Silk_sort.c
+++ b/silk/silk_sort.c
@@ -31,11 +31,11 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /*                                                           */
 /* Shell short:    http://en.wikipedia.org/wiki/Shell_sort   */
 
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
-void SKP_Silk_insertion_sort_increasing(
+void silk_insertion_sort_increasing(
     SKP_int32           *a,             /* I/O:  Unsorted / Sorted vector               */
-    SKP_int             *index,         /* O:    Index vector for the sorted elements   */
+    SKP_int             *idx,           /* O:    Index vector for the sorted elements   */
     const SKP_int       L,              /* I:    Vector length                          */
     const SKP_int       K               /* I:    Number of correctly sorted positions   */
 )
@@ -50,18 +50,18 @@ void SKP_Silk_insertion_sort_increasing(
 
     /* Write start indices in index vector */
     for( i = 0; i < K; i++ ) {
-        index[ i ] = i;
+        idx[ i ] = i;
     }
 
     /* Sort vector elements by value, increasing order */
     for( i = 1; i < K; i++ ) {
         value = a[ i ];
         for( j = i - 1; ( j >= 0 ) && ( value < a[ j ] ); j-- ) {
-            a[ j + 1 ]     = a[ j ];     /* Shift value */
-            index[ j + 1 ] = index[ j ]; /* Shift index */
+            a[ j + 1 ]   = a[ j ];       /* Shift value */
+            idx[ j + 1 ] = idx[ j ];     /* Shift index */
         }
-        a[ j + 1 ]     = value; /* Write value */
-        index[ j + 1 ] = i;     /* Write index */
+        a[ j + 1 ]   = value;   /* Write value */
+        idx[ j + 1 ] = i;       /* Write index */
     }
 
     /* If less than L values are asked for, check the remaining values, */
@@ -70,18 +70,18 @@ void SKP_Silk_insertion_sort_increasing(
         value = a[ i ];
         if( value < a[ K - 1 ] ) {
             for( j = K - 2; ( j >= 0 ) && ( value < a[ j ] ); j-- ) {
-                a[ j + 1 ]     = a[ j ];     /* Shift value */
-                index[ j + 1 ] = index[ j ]; /* Shift index */
+                a[ j + 1 ]   = a[ j ];       /* Shift value */
+                idx[ j + 1 ] = idx[ j ];     /* Shift index */
             }
-            a[ j + 1 ]     = value; /* Write value */
-            index[ j + 1 ] = i;        /* Write index */
+            a[ j + 1 ]   = value;   /* Write value */
+            idx[ j + 1 ] = i;       /* Write index */
         }
     }
 }
 
-void SKP_Silk_insertion_sort_decreasing_int16(
+void silk_insertion_sort_decreasing_int16(
     SKP_int16           *a,             /* I/O: Unsorted / Sorted vector                */
-    SKP_int             *index,         /* O:   Index vector for the sorted elements    */
+    SKP_int             *idx,           /* O:   Index vector for the sorted elements    */
     const SKP_int       L,              /* I:   Vector length                           */
     const SKP_int       K               /* I:   Number of correctly sorted positions    */
 )
@@ -96,18 +96,18 @@ void SKP_Silk_insertion_sort_decreasing_int16(
 
     /* Write start indices in index vector */
     for( i = 0; i < K; i++ ) {
-        index[ i ] = i;
+        idx[ i ] = i;
     }
 
     /* Sort vector elements by value, decreasing order */
     for( i = 1; i < K; i++ ) {
         value = a[ i ];
         for( j = i - 1; ( j >= 0 ) && ( value > a[ j ] ); j-- ) {    
-            a[ j + 1 ]     = a[ j ];     /* Shift value */
-            index[ j + 1 ] = index[ j ]; /* Shift index */
+            a[ j + 1 ]   = a[ j ];     /* Shift value */
+            idx[ j + 1 ] = idx[ j ];   /* Shift index */
         }
-        a[ j + 1 ]     = value; /* Write value */
-        index[ j + 1 ] = i;     /* Write index */
+        a[ j + 1 ]   = value;   /* Write value */
+        idx[ j + 1 ] = i;       /* Write index */
     }
 
     /* If less than L values are asked for, check the remaining values, */
@@ -116,16 +116,16 @@ void SKP_Silk_insertion_sort_decreasing_int16(
         value = a[ i ];
         if( value > a[ K - 1 ] ) {
             for( j = K - 2; ( j >= 0 ) && ( value > a[ j ] ); j-- ) {    
-                a[ j + 1 ]     = a[ j ];     /* Shift value */
-                index[ j + 1 ] = index[ j ]; /* Shift index */
+                a[ j + 1 ]   = a[ j ];     /* Shift value */
+                idx[ j + 1 ] = idx[ j ];   /* Shift index */
             }
-            a[ j + 1 ]     = value; /* Write value */
-            index[ j + 1 ] = i;     /* Write index */
+            a[ j + 1 ]   = value;   /* Write value */
+            idx[ j + 1 ] = i;       /* Write index */
         }
     }
 }
 
-void SKP_Silk_insertion_sort_increasing_all_values_int16(
+void silk_insertion_sort_increasing_all_values_int16(
     SKP_int16           *a,             /* I/O: Unsorted / Sorted vector                */
     const SKP_int       L               /* I:   Vector length                           */
 )
diff --git a/silk/silk_stereo_LR_to_MS.c b/silk/silk_stereo_LR_to_MS.c
new file mode 100644
index 00000000..c86a96d3
--- /dev/null
+++ b/silk/silk_stereo_LR_to_MS.c
@@ -0,0 +1,177 @@
+/***********************************************************************
+Copyright (c) 2006-2011, Skype Limited. All rights reserved. 
+Redistribution and use in source and binary forms, with or without 
+modification, (subject to the limitations in the disclaimer below) 
+are permitted provided that the following conditions are met:
+- Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+- Redistributions in binary form must reproduce the above copyright 
+notice, this list of conditions and the following disclaimer in the 
+documentation and/or other materials provided with the distribution.
+- Neither the name of Skype Limited, nor the names of specific 
+contributors, may be used to endorse or promote products derived from 
+this software without specific prior written permission.
+NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED 
+BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
+CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
+BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 
+FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 
+COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 
+USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+***********************************************************************/
+
+#include "silk_main.h"
+
+/* Convert Left/Right stereo signal to adaptive Mid/Side representation */
+void silk_stereo_LR_to_MS( 
+    stereo_enc_state    *state,                         /* I/O  State                                       */
+    SKP_int16           x1[],                           /* I/O  Left input signal, becomes mid signal       */
+    SKP_int16           x2[],                           /* I/O  Right input signal, becomes side signal     */
+    SKP_int8            ix[ 2 ][ 4 ],                   /* O    Quantization indices                        */
+    SKP_int32           mid_side_rates_bps[],           /* O    Bitrates for mid and side signals           */
+    SKP_int32           total_rate_bps,                 /* I    Total bitrate                               */
+    SKP_int             prev_speech_act_Q8,             /* I    Speech activity level in previous frame     */
+    SKP_int             fs_kHz,                         /* I    Sample rate (kHz)                           */
+    SKP_int             frame_length                    /* I    Number of samples                           */
+)
+{
+    SKP_int   n, is10msFrame, denom_Q16, delta0_Q13, delta1_Q13;
+    SKP_int32 sum, diff, smooth_coef_Q16, pred_Q13[ 2 ], pred0_Q13, pred1_Q13;
+    SKP_int32 LP_ratio_Q14, HP_ratio_Q14, frac_Q16, frac_3_Q16, min_mid_rate_bps, width_Q14, w_Q24, deltaw_Q24;
+    SKP_int16 side[ MAX_FRAME_LENGTH + 2 ];
+    SKP_int16 LP_mid[  MAX_FRAME_LENGTH ], HP_mid[  MAX_FRAME_LENGTH ];
+    SKP_int16 LP_side[ MAX_FRAME_LENGTH ], HP_side[ MAX_FRAME_LENGTH ];
+    SKP_int16 *mid = &x1[ -2 ];
+
+    /* Convert to basic mid/side signals */
+    for( n = 0; n < frame_length + 2; n++ ) {
+        sum  = x1[ n - 2 ] + (SKP_int32)x2[ n - 2 ];
+        diff = x1[ n - 2 ] - (SKP_int32)x2[ n - 2 ];
+        mid[  n ] = (SKP_int16)SKP_RSHIFT_ROUND( sum, 1 );
+        side[ n ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( diff, 1 ) );
+    }
+
+    /* Buffering */
+    SKP_memcpy( mid,  state->sMid,  2 * sizeof( SKP_int16 ) );
+    SKP_memcpy( side, state->sSide, 2 * sizeof( SKP_int16 ) );
+    SKP_memcpy( state->sMid,  &mid[  frame_length ], 2 * sizeof( SKP_int16 ) );
+    SKP_memcpy( state->sSide, &side[ frame_length ], 2 * sizeof( SKP_int16 ) );
+
+    /* LP and HP filter mid signal */
+    for( n = 0; n < frame_length; n++ ) {
+        sum = SKP_RSHIFT_ROUND( SKP_ADD_LSHIFT( mid[ n ] + mid[ n + 2 ], mid[ n + 1 ], 1 ), 2 );
+        LP_mid[ n ] = sum;
+        HP_mid[ n ] = mid[ n + 1 ] - sum;
+    }
+
+    /* LP and HP filter side signal */
+    for( n = 0; n < frame_length; n++ ) {
+        sum = SKP_RSHIFT_ROUND( SKP_ADD_LSHIFT( side[ n ] + side[ n + 2 ], side[ n + 1 ], 1 ), 2 );
+        LP_side[ n ] = sum;
+        HP_side[ n ] = side[ n + 1 ] - sum;
+    }
+
+    /* Find energies and predictors */
+    is10msFrame = frame_length == 10 * fs_kHz;
+    smooth_coef_Q16 = is10msFrame ? 
+        SILK_FIX_CONST( STEREO_RATIO_SMOOTH_COEF / 2, 16 ) : 
+        SILK_FIX_CONST( STEREO_RATIO_SMOOTH_COEF,     16 );
+    smooth_coef_Q16 = SKP_SMULWB( SKP_SMULBB( prev_speech_act_Q8 , prev_speech_act_Q8 ), smooth_coef_Q16 );
+
+    pred_Q13[ 0 ] = silk_stereo_find_predictor( &LP_ratio_Q14, LP_mid, LP_side, &state->mid_side_amp_Q0[ 0 ], frame_length, smooth_coef_Q16 );
+    pred_Q13[ 1 ] = silk_stereo_find_predictor( &HP_ratio_Q14, HP_mid, HP_side, &state->mid_side_amp_Q0[ 2 ], frame_length, smooth_coef_Q16 );
+    /* Ratio of the norms of residual and mid signals */
+    frac_Q16 = SKP_SMLABB( HP_ratio_Q14, LP_ratio_Q14, 3 );
+    frac_Q16 = SKP_min( frac_Q16, SILK_FIX_CONST( 1, 16 ) );
+
+    /* Determine bitrate distribution between mid and side, and possibly reduce stereo width */
+    total_rate_bps -= is10msFrame ? 1200 : 600;      /* Subtract approximate bitrate for coding stereo parameters */
+    min_mid_rate_bps = SKP_SMLABB( 2000, fs_kHz, 900 );
+    SKP_assert( min_mid_rate_bps < 32767 );
+    /* Default bitrate distribution: 8 parts for Mid and (5+3*frac) parts for Side. so: mid_rate = ( 8 / ( 13 + 3 * frac ) ) * total_ rate */
+    frac_3_Q16 = SKP_MUL( 3, frac_Q16 );
+    mid_side_rates_bps[ 0 ] = silk_DIV32_varQ( total_rate_bps, SILK_FIX_CONST( 8 + 5, 16 ) + frac_3_Q16, 16+3 );
+    /* If Mid bitrate below minimum, reduce stereo width */
+    if( mid_side_rates_bps[ 0 ] < min_mid_rate_bps ) {
+        mid_side_rates_bps[ 0 ] = min_mid_rate_bps;
+        mid_side_rates_bps[ 1 ] = total_rate_bps - mid_side_rates_bps[ 0 ];
+        /* width = 4 * ( 2 * side_rate - min_rate ) / ( ( 1 + 3 * frac ) * min_rate ) */
+        width_Q14 = silk_DIV32_varQ( SKP_LSHIFT( mid_side_rates_bps[ 1 ], 1 ) - min_mid_rate_bps, 
+            SKP_SMULWB( SILK_FIX_CONST( 1, 16 ) + frac_3_Q16, min_mid_rate_bps ), 14+2 );
+        width_Q14 = SKP_LIMIT( width_Q14, 0, SILK_FIX_CONST( 1, 14 ) );
+    } else {
+        mid_side_rates_bps[ 1 ] = total_rate_bps - mid_side_rates_bps[ 0 ];
+        width_Q14 = SILK_FIX_CONST( 1, 14 );
+    }
+
+    /* Smoother */
+    state->smth_width_Q14 = (SKP_int16)SKP_SMLAWB( state->smth_width_Q14, width_Q14 - state->smth_width_Q14, smooth_coef_Q16 );
+
+    /* Reduce predictors */
+    pred_Q13[ 0 ] = SKP_RSHIFT( SKP_SMULBB( state->smth_width_Q14, pred_Q13[ 0 ] ), 14 );
+    pred_Q13[ 1 ] = SKP_RSHIFT( SKP_SMULBB( state->smth_width_Q14, pred_Q13[ 1 ] ), 14 );
+
+    ix[ 0 ][ 3 ] = 0;
+    if( state->width_prev_Q14 == 0 && 
+        ( 8 * total_rate_bps < 13 * min_mid_rate_bps || SKP_SMULWB( frac_Q16, state->smth_width_Q14 ) < SILK_FIX_CONST( 0.05, 14 ) ) ) 
+    {
+        width_Q14 = 0;
+        /* Only encode mid channel */
+        mid_side_rates_bps[ 0 ] = total_rate_bps;
+        mid_side_rates_bps[ 1 ] = 0;
+        ix[ 0 ][ 3 ] = 1;
+    } else if( state->width_prev_Q14 != 0 && 
+        ( 8 * total_rate_bps < 11 * min_mid_rate_bps || SKP_SMULWB( frac_Q16, state->smth_width_Q14 ) < SILK_FIX_CONST( 0.02, 14 ) ) ) 
+    {
+        width_Q14 = 0;
+    } else if( state->smth_width_Q14 > SILK_FIX_CONST( 0.95, 14 ) ) {
+        width_Q14 = SILK_FIX_CONST( 1, 14 );
+    } else {
+        width_Q14 = state->smth_width_Q14;
+    }
+
+#if 0
+    DEBUG_STORE_DATA( midside.dat, &mid_side_rates_bps[ 0 ], 8 );
+    DEBUG_STORE_DATA( norms0.pcm, &state->mid_side_amp_Q0[0], 8 );
+    DEBUG_STORE_DATA( norms1.pcm, &state->mid_side_amp_Q0[2], 8 );
+    DEBUG_STORE_DATA( width.pcm, &width_Q14, 4 );
+#endif
+
+    /* Quantize predictors */
+    silk_stereo_quant_pred( state, pred_Q13, ix );
+
+    /* Interpolate predictors and subtract prediction from side channel */
+    pred0_Q13  = -state->pred_prev_Q13[ 0 ];
+    pred1_Q13  = -state->pred_prev_Q13[ 1 ];
+    w_Q24      =  SKP_LSHIFT( state->width_prev_Q14, 10 );
+    denom_Q16  = SKP_DIV32_16( 1 << 16, STEREO_INTERP_LEN_MS * fs_kHz );
+    delta0_Q13 = -SKP_RSHIFT_ROUND( SKP_SMULBB( pred_Q13[ 0 ] - state->pred_prev_Q13[ 0 ], denom_Q16 ), 16 );
+    delta1_Q13 = -SKP_RSHIFT_ROUND( SKP_SMULBB( pred_Q13[ 1 ] - state->pred_prev_Q13[ 1 ], denom_Q16 ), 16 );
+    deltaw_Q24 =  SKP_LSHIFT( SKP_SMULWB( width_Q14 - state->width_prev_Q14, denom_Q16 ), 10 );
+    for( n = 0; n < STEREO_INTERP_LEN_MS * fs_kHz; n++ ) {
+        pred0_Q13 += delta0_Q13;
+        pred1_Q13 += delta1_Q13;
+        w_Q24   += deltaw_Q24;
+        sum = SKP_LSHIFT( SKP_ADD_LSHIFT( mid[ n ] + mid[ n + 2 ], mid[ n + 1 ], 1 ), 9 );      /* Q11 */ 
+        sum = SKP_SMLAWB( SKP_SMULWB( w_Q24, side[ n + 1 ] ), sum, pred0_Q13 );                 /* Q8  */
+        sum = SKP_SMLAWB( sum, SKP_LSHIFT( ( SKP_int32 )mid[ n + 1 ], 11 ), pred1_Q13 );        /* Q8  */
+        x2[ n - 1 ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( sum, 8 ) );
+    }
+    pred0_Q13 = -pred_Q13[ 0 ];
+    pred1_Q13 = -pred_Q13[ 1 ];
+    w_Q24     =  SKP_LSHIFT( width_Q14, 10 );
+    for( n = STEREO_INTERP_LEN_MS * fs_kHz; n < frame_length; n++ ) {
+        sum = SKP_LSHIFT( SKP_ADD_LSHIFT( mid[ n ] + mid[ n + 2 ], mid[ n + 1 ], 1 ), 9 );      /* Q11 */ 
+        sum = SKP_SMLAWB( SKP_SMULWB( w_Q24, side[ n + 1 ] ), sum, pred0_Q13 );                 /* Q8  */
+        sum = SKP_SMLAWB( sum, SKP_LSHIFT( ( SKP_int32 )mid[ n + 1 ], 11 ), pred1_Q13 );        /* Q8  */
+        x2[ n - 1 ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( sum, 8 ) );
+    }
+    state->pred_prev_Q13[ 0 ] = (SKP_int16)pred_Q13[ 0 ];
+    state->pred_prev_Q13[ 1 ] = (SKP_int16)pred_Q13[ 1 ];
+    state->width_prev_Q14     = (SKP_int16)width_Q14;
+}
diff --git a/silk/SKP_Silk_stereo_MS_to_LR.c b/silk/silk_stereo_MS_to_LR.c
similarity index 67%
rename from silk/SKP_Silk_stereo_MS_to_LR.c
rename to silk/silk_stereo_MS_to_LR.c
index b8ba55dc..357415ad 100644
--- a/silk/SKP_Silk_stereo_MS_to_LR.c
+++ b/silk/silk_stereo_MS_to_LR.c
@@ -25,11 +25,11 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 /* Convert adaptive Mid/Side representation to Left/Right stereo signal */
-void SKP_Silk_stereo_MS_to_LR( 
-    stereo_state        *state,                         /* I/O  State                                       */
+void silk_stereo_MS_to_LR( 
+    stereo_dec_state    *state,                         /* I/O  State                                       */
     SKP_int16           x1[],                           /* I/O  Left input signal, becomes mid signal       */
     SKP_int16           x2[],                           /* I/O  Right input signal, becomes side signal     */
     const SKP_int32     pred_Q13[],                     /* I    Predictors                                  */
@@ -39,15 +39,12 @@ void SKP_Silk_stereo_MS_to_LR(
 {
     SKP_int   n, denom_Q16, delta0_Q13, delta1_Q13;
     SKP_int32 sum, diff, pred0_Q13, pred1_Q13;
-    SKP_int16 mid[ MAX_FRAME_LENGTH + 2 ], side[ MAX_FRAME_LENGTH + 2 ];
 
     /* Buffering */
-    SKP_memcpy( mid,  state->sMid,  2 * sizeof( SKP_int16 ) );
-    SKP_memcpy( side, state->sSide, 2 * sizeof( SKP_int16 ) );
-    SKP_memcpy( mid  + 2, x1, frame_length * sizeof( SKP_int16 ) );
-    SKP_memcpy( side + 2, x2, frame_length * sizeof( SKP_int16 ) );
-    SKP_memcpy( state->sMid,  &mid[  frame_length ], 2 * sizeof( SKP_int16 ) );
-    SKP_memcpy( state->sSide, &side[ frame_length ], 2 * sizeof( SKP_int16 ) );
+    SKP_memcpy( x1, state->sMid,  2 * sizeof( SKP_int16 ) );
+    SKP_memcpy( x2, state->sSide, 2 * sizeof( SKP_int16 ) );
+    SKP_memcpy( state->sMid,  &x1[ frame_length ], 2 * sizeof( SKP_int16 ) );
+    SKP_memcpy( state->sSide, &x2[ frame_length ], 2 * sizeof( SKP_int16 ) );
 
     /* Interpolate predictors and add prediction to side channel */
     pred0_Q13  = state->pred_prev_Q13[ 0 ];
@@ -58,27 +55,27 @@ void SKP_Silk_stereo_MS_to_LR(
     for( n = 0; n < STEREO_INTERP_LEN_MS * fs_kHz; n++ ) {
         pred0_Q13 += delta0_Q13;
         pred1_Q13 += delta1_Q13;
-        sum = SKP_LSHIFT( SKP_ADD_LSHIFT( mid[ n ] + mid[ n + 2 ], mid[ n + 1 ], 1 ), 9 );      /* Q11 */ 
-        sum = SKP_SMLAWB( SKP_LSHIFT( ( SKP_int32 )side[ n + 1 ], 8 ), sum, pred0_Q13 );        /* Q8  */
-        sum = SKP_SMLAWB( sum, SKP_LSHIFT( ( SKP_int32 )mid[ n + 1 ], 11 ), pred1_Q13 );        /* Q8  */
-        side[ n + 1 ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( sum, 8 ) );
+        sum = SKP_LSHIFT( SKP_ADD_LSHIFT( x1[ n ] + x1[ n + 2 ], x1[ n + 1 ], 1 ), 9 );         /* Q11 */ 
+        sum = SKP_SMLAWB( SKP_LSHIFT( ( SKP_int32 )x2[ n + 1 ], 8 ), sum, pred0_Q13 );          /* Q8  */
+        sum = SKP_SMLAWB( sum, SKP_LSHIFT( ( SKP_int32 )x1[ n + 1 ], 11 ), pred1_Q13 );         /* Q8  */
+        x2[ n + 1 ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( sum, 8 ) );
     }
     pred0_Q13 = pred_Q13[ 0 ];
     pred1_Q13 = pred_Q13[ 1 ];
     for( n = STEREO_INTERP_LEN_MS * fs_kHz; n < frame_length; n++ ) {
-        sum = SKP_LSHIFT( SKP_ADD_LSHIFT( mid[ n ] + mid[ n + 2 ], mid[ n + 1 ], 1 ), 9 );      /* Q11 */ 
-        sum = SKP_SMLAWB( SKP_LSHIFT( ( SKP_int32 )side[ n + 1 ], 8 ), sum, pred0_Q13 );        /* Q8  */
-        sum = SKP_SMLAWB( sum, SKP_LSHIFT( ( SKP_int32 )mid[ n + 1 ], 11 ), pred1_Q13 );        /* Q8  */
-        side[ n + 1 ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( sum, 8 ) );
+        sum = SKP_LSHIFT( SKP_ADD_LSHIFT( x1[ n ] + x1[ n + 2 ], x1[ n + 1 ], 1 ), 9 );         /* Q11 */ 
+        sum = SKP_SMLAWB( SKP_LSHIFT( ( SKP_int32 )x2[ n + 1 ], 8 ), sum, pred0_Q13 );          /* Q8  */
+        sum = SKP_SMLAWB( sum, SKP_LSHIFT( ( SKP_int32 )x1[ n + 1 ], 11 ), pred1_Q13 );         /* Q8  */
+        x2[ n + 1 ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( sum, 8 ) );
     }
     state->pred_prev_Q13[ 0 ] = pred_Q13[ 0 ];
     state->pred_prev_Q13[ 1 ] = pred_Q13[ 1 ];
 
     /* Convert to left/right signals */
     for( n = 0; n < frame_length; n++ ) {
-        sum  = mid[ n + 1 ] + (SKP_int32)side[ n + 1 ];
-        diff = mid[ n + 1 ] - (SKP_int32)side[ n + 1 ];
-        x1[ n ] = (SKP_int16)SKP_SAT16( sum );
-        x2[ n ] = (SKP_int16)SKP_SAT16( diff );
+        sum  = x1[ n + 1 ] + (SKP_int32)x2[ n + 1 ];
+        diff = x1[ n + 1 ] - (SKP_int32)x2[ n + 1 ];
+        x1[ n + 1 ] = (SKP_int16)SKP_SAT16( sum );
+        x2[ n + 1 ] = (SKP_int16)SKP_SAT16( diff );
     }
 }
diff --git a/silk/SKP_Silk_stereo_decode_pred.c b/silk/silk_stereo_decode_pred.c
similarity index 69%
rename from silk/SKP_Silk_stereo_decode_pred.c
rename to silk/silk_stereo_decode_pred.c
index 828b8bd9..e7e6c009 100644
--- a/silk/SKP_Silk_stereo_decode_pred.c
+++ b/silk/silk_stereo_decode_pred.c
@@ -25,35 +25,39 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 /* Decode mid/side predictors */
-void SKP_Silk_stereo_decode_pred(
+void silk_stereo_decode_pred(
     ec_dec              *psRangeDec,                    /* I/O  Compressor data structure                   */
+    SKP_int             *decode_only_mid,               /* O    Flag that only mid channel has been coded   */
     SKP_int32           pred_Q13[]                      /* O    Predictors                                  */
 )
 {
-    SKP_int   n, ibest[ 2 ] = { 0 }, jbest[ 2 ] = { 0 }, kbest[ 2 ];
+    SKP_int   n, ix[ 2 ][ 3 ];
     SKP_int32 low_Q13, step_Q13;
 
     /* Entropy decoding */
-    n = ec_dec_icdf( psRangeDec, SKP_Silk_stereo_pred_joint_iCDF, 8 );
-    kbest[ 0 ] = SKP_DIV32_16( n, 5 );
-    kbest[ 1 ] = n - 5 * kbest[ 0 ];
+    n = ec_dec_icdf( psRangeDec, silk_stereo_pred_joint_iCDF, 8 );
+    ix[ 0 ][ 2 ] = SKP_DIV32_16( n, 5 );
+    ix[ 1 ][ 2 ] = n - 5 * ix[ 0 ][ 2 ];
     for( n = 0; n < 2; n++ ) {
-        ibest[ n ] = ec_dec_icdf( psRangeDec, SKP_Silk_uniform3_iCDF, 8 );
-        ibest[ n ] += 3 * kbest[ n ];
-        jbest[ n ] = ec_dec_icdf( psRangeDec, SKP_Silk_uniform5_iCDF, 8 );
+        ix[ n ][ 0 ] = ec_dec_icdf( psRangeDec, silk_uniform3_iCDF, 8 );
+        ix[ n ][ 1 ] = ec_dec_icdf( psRangeDec, silk_uniform5_iCDF, 8 );
     }
 
     /* Dequantize */
     for( n = 0; n < 2; n++ ) {
-        low_Q13 = SKP_Silk_stereo_pred_quant_Q13[ ibest[ n ] ];
-        step_Q13 = SKP_SMULWB( SKP_Silk_stereo_pred_quant_Q13[ ibest[ n ] + 1 ] - low_Q13, 
-            SKP_FIX_CONST( 0.5 / STEREO_QUANT_SUB_STEPS, 16 ) );
-        pred_Q13[ n ] = SKP_SMLABB( low_Q13, step_Q13, 2 * jbest[ n ] + 1 );
+        ix[ n ][ 0 ] += 3 * ix[ n ][ 2 ];
+        low_Q13 = silk_stereo_pred_quant_Q13[ ix[ n ][ 0 ] ];
+        step_Q13 = SKP_SMULWB( silk_stereo_pred_quant_Q13[ ix[ n ][ 0 ] + 1 ] - low_Q13, 
+            SILK_FIX_CONST( 0.5 / STEREO_QUANT_SUB_STEPS, 16 ) );
+        pred_Q13[ n ] = SKP_SMLABB( low_Q13, step_Q13, 2 * ix[ n ][ 1 ] + 1 );
     }
 
     /* Subtract second from first predictor (helps when actually applying these) */
     pred_Q13[ 0 ] -= pred_Q13[ 1 ];
+
+    /* Decode flag that only mid channel is coded */
+    *decode_only_mid = ec_dec_icdf( psRangeDec, silk_stereo_only_code_mid_iCDF, 8 );
 }
diff --git a/silk/silk_stereo_encode_pred.c b/silk/silk_stereo_encode_pred.c
new file mode 100644
index 00000000..18546ab6
--- /dev/null
+++ b/silk/silk_stereo_encode_pred.c
@@ -0,0 +1,51 @@
+/***********************************************************************
+Copyright (c) 2006-2011, Skype Limited. All rights reserved. 
+Redistribution and use in source and binary forms, with or without 
+modification, (subject to the limitations in the disclaimer below) 
+are permitted provided that the following conditions are met:
+- Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+- Redistributions in binary form must reproduce the above copyright 
+notice, this list of conditions and the following disclaimer in the 
+documentation and/or other materials provided with the distribution.
+- Neither the name of Skype Limited, nor the names of specific 
+contributors, may be used to endorse or promote products derived from 
+this software without specific prior written permission.
+NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED 
+BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
+CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
+BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 
+FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 
+COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 
+USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+***********************************************************************/
+
+#include "silk_main.h"
+
+/* Entropy code the mid/side quantization indices */
+void silk_stereo_encode_pred(
+    ec_enc              *psRangeEnc,                    /* I/O  Compressor data structure                   */
+    SKP_int8            ix[ 2 ][ 4 ]                    /* I    Quantization indices                        */
+)
+{
+    SKP_int   n;
+    
+    /* Entropy coding */
+    n = 5 * ix[ 0 ][ 2 ] + ix[ 1 ][ 2 ];
+    SKP_assert( n < 25 );
+    ec_enc_icdf( psRangeEnc, n, silk_stereo_pred_joint_iCDF, 8 );
+    for( n = 0; n < 2; n++ ) {
+        SKP_assert( ix[ n ][ 0 ] < 3 );
+        SKP_assert( ix[ n ][ 1 ] < STEREO_QUANT_SUB_STEPS );
+        ec_enc_icdf( psRangeEnc, ix[ n ][ 0 ], silk_uniform3_iCDF, 8 );
+        ec_enc_icdf( psRangeEnc, ix[ n ][ 1 ], silk_uniform5_iCDF, 8 );
+    }
+
+    /* Encode flag that only mid channel is coded */
+    ec_enc_icdf( psRangeEnc, ix[ 0 ][ 3 ], silk_stereo_only_code_mid_iCDF, 8 );
+}
diff --git a/silk/SKP_Silk_stereo_find_predictor.c b/silk/silk_stereo_find_predictor.c
similarity index 55%
rename from silk/SKP_Silk_stereo_find_predictor.c
rename to silk/silk_stereo_find_predictor.c
index 0fa373b6..a36a3b90 100644
--- a/silk/SKP_Silk_stereo_find_predictor.c
+++ b/silk/silk_stereo_find_predictor.c
@@ -25,30 +25,45 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
 /* Find least-squares prediction gain for one signal based on another and quantize it */
-SKP_int32 SKP_Silk_stereo_find_predictor(               /* O    Returns predictor in Q13                    */
+SKP_int32 silk_stereo_find_predictor(               /* O    Returns predictor in Q13                    */
+    SKP_int32           *ratio_Q14,                     /* O    Ratio of residual and mid energies          */
     const SKP_int16     x[],                            /* I    Basis signal                                */
     const SKP_int16     y[],                            /* I    Target signal                               */
-    SKP_int             length                          /* I    Number of samples                           */
+    SKP_int32           mid_res_amp_Q0[],               /* I/O  Smoothed mid, residual norms                */
+    SKP_int             length,                         /* I    Number of samples                           */
+    SKP_int             smooth_coef_Q16                 /* I    Smoothing coefficient                       */
 )
 {
     SKP_int   scale, scale1, scale2;
-    SKP_int32 nrg1, nrg2, corr, pred_Q13;
+    SKP_int32 nrgx, nrgy, corr, pred_Q13;
 
     /* Find  predictor */
-    SKP_Silk_sum_sqr_shift( &nrg1, &scale1, x, length );
-    SKP_Silk_sum_sqr_shift( &nrg2, &scale2, y, length );
-    if( scale1 > scale2 ) {
-        scale = scale1;
-    } else {
-        scale = scale2;
-        nrg1 = SKP_RSHIFT32( nrg1, scale2 - scale1 );
-    }
-    corr = SKP_Silk_inner_prod_aligned_scale( x, y, scale, length );
-    pred_Q13 = SKP_DIV32_varQ( corr, SKP_max( nrg1, 1 ), 13 );
-    pred_Q13 = SKP_LIMIT( pred_Q13, -SKP_FIX_CONST( 10, 13 ), SKP_FIX_CONST( 10, 13 ) );
+    silk_sum_sqr_shift( &nrgx, &scale1, x, length );
+    silk_sum_sqr_shift( &nrgy, &scale2, y, length );
+    scale = SKP_max( scale1, scale2 );
+    scale = scale + ( scale & 1 );          /* make even */
+    nrgy = SKP_RSHIFT32( nrgy, scale - scale2 );
+    nrgx = SKP_RSHIFT32( nrgx, scale - scale1 );
+    nrgx = SKP_max( nrgx, 1 );
+    corr = silk_inner_prod_aligned_scale( x, y, scale, length );
+    pred_Q13 = silk_DIV32_varQ( corr, nrgx, 13 );
+    pred_Q13 = SKP_SAT16( pred_Q13 );
+
+    /* Smoothed mid and residual norms */
+    SKP_assert( smooth_coef_Q16 < 32768 );
+    scale = SKP_RSHIFT( scale, 1 );
+    mid_res_amp_Q0[ 0 ] = SKP_SMLAWB( mid_res_amp_Q0[ 0 ], SKP_LSHIFT( silk_SQRT_APPROX( nrgx ), scale ) - mid_res_amp_Q0[ 0 ], 
+        smooth_coef_Q16 );
+    nrgy = SKP_SUB_LSHIFT32( nrgy, SKP_SMULWB( corr, pred_Q13 ), 3 );
+    mid_res_amp_Q0[ 1 ] = SKP_SMLAWB( mid_res_amp_Q0[ 1 ], SKP_LSHIFT( silk_SQRT_APPROX( nrgy ), scale ) - mid_res_amp_Q0[ 1 ], 
+        smooth_coef_Q16 );
+
+    /* Ratio of smoothed residual and mid norms */
+    *ratio_Q14 = silk_DIV32_varQ( mid_res_amp_Q0[ 1 ], SKP_max( mid_res_amp_Q0[ 0 ], 1 ), 14 );
+    *ratio_Q14 = SKP_LIMIT( *ratio_Q14, 0, 32767 );
 
     return pred_Q13;
 }
diff --git a/silk/SKP_Silk_stereo_encode_pred.c b/silk/silk_stereo_quant_pred.c
similarity index 68%
rename from silk/SKP_Silk_stereo_encode_pred.c
rename to silk/silk_stereo_quant_pred.c
index 4bc38ed3..275605c7 100644
--- a/silk/SKP_Silk_stereo_encode_pred.c
+++ b/silk/silk_stereo_quant_pred.c
@@ -25,15 +25,16 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_main.h"
+#include "silk_main.h"
 
-/* Quantize mid/side predictors and entropy code the quantization indices */
-void SKP_Silk_stereo_encode_pred(
-    ec_enc              *psRangeEnc,                    /* I/O  Compressor data structure                   */
-    SKP_int32           pred_Q13[]                      /* I/O  Predictors (out: quantized)                 */
+/* Quantize mid/side predictors */
+void silk_stereo_quant_pred(
+    stereo_enc_state    *state,                         /* I/O  State                                       */
+    SKP_int32           pred_Q13[],                     /* I/O  Predictors (out: quantized)                 */
+    SKP_int8            ix[ 2 ][ 4 ]                    /* O    Quantization indices                        */
 )
 {
-    SKP_int   i, j, n, ibest[ 2 ] = { 0 }, jbest[ 2 ] = { 0 }, kbest[ 2 ];
+    SKP_int   i, j, n;
     SKP_int32 low_Q13, step_Q13, lvl_Q13, err_min_Q13, err_Q13, quant_pred_Q13 = 0;
 
     /* Quantize */
@@ -41,17 +42,17 @@ void SKP_Silk_stereo_encode_pred(
         /* Brute-force search over quantization levels */
         err_min_Q13 = SKP_int32_MAX;
         for( i = 0; i < STEREO_QUANT_TAB_SIZE - 1; i++ ) {
-            low_Q13 = SKP_Silk_stereo_pred_quant_Q13[ i ];
-            step_Q13 = SKP_SMULWB( SKP_Silk_stereo_pred_quant_Q13[ i + 1 ] - low_Q13, 
-                SKP_FIX_CONST( 0.5 / STEREO_QUANT_SUB_STEPS, 16 ) );
+            low_Q13 = silk_stereo_pred_quant_Q13[ i ];
+            step_Q13 = SKP_SMULWB( silk_stereo_pred_quant_Q13[ i + 1 ] - low_Q13, 
+                SILK_FIX_CONST( 0.5 / STEREO_QUANT_SUB_STEPS, 16 ) );
             for( j = 0; j < STEREO_QUANT_SUB_STEPS; j++ ) {
                 lvl_Q13 = SKP_SMLABB( low_Q13, step_Q13, 2 * j + 1 );
                 err_Q13 = SKP_abs( pred_Q13[ n ] - lvl_Q13 );
                 if( err_Q13 < err_min_Q13 ) {
                     err_min_Q13 = err_Q13;
                     quant_pred_Q13 = lvl_Q13;
-                    ibest[ n ] = i;
-                    jbest[ n ] = j;
+                    ix[ n ][ 0 ] = i;
+                    ix[ n ][ 1 ] = j;
                 } else {
                     /* Error increasing, so we're past the optimum */
                     goto done;
@@ -59,22 +60,11 @@ void SKP_Silk_stereo_encode_pred(
             }
         }
         done:
-        kbest[ n ]  = SKP_DIV32_16( ibest[ n ], 3 );
-        ibest[ n ] -= kbest[ n ] * 3;
+        ix[ n ][ 2 ]  = SKP_DIV32_16( ix[ n ][ 0 ], 3 );
+        ix[ n ][ 0 ] -= ix[ n ][ 2 ] * 3;
         pred_Q13[ n ] = quant_pred_Q13; 
     }
 
     /* Subtract second from first predictor (helps when actually applying these) */
     pred_Q13[ 0 ] -= pred_Q13[ 1 ];
-    
-    /* Entropy coding */
-    i = 5 * kbest[ 0 ] + kbest[ 1 ];
-    SKP_assert( i < 25 );
-    ec_enc_icdf( psRangeEnc, i, SKP_Silk_stereo_pred_joint_iCDF, 8 );
-    for( n = 0; n < 2; n++ ) {
-        SKP_assert( ibest[ n ] < 3 );
-        SKP_assert( jbest[ n ] < STEREO_QUANT_SUB_STEPS );
-        ec_enc_icdf( psRangeEnc, ibest[ n ], SKP_Silk_uniform3_iCDF, 8 );
-        ec_enc_icdf( psRangeEnc, jbest[ n ], SKP_Silk_uniform5_iCDF, 8 );
-    }
 }
diff --git a/silk/SKP_Silk_structs.h b/silk/silk_structs.h
similarity index 86%
rename from silk/SKP_Silk_structs.h
rename to silk/silk_structs.h
index 75f58d3f..efcda6e5 100644
--- a/silk/SKP_Silk_structs.h
+++ b/silk/silk_structs.h
@@ -25,16 +25,16 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#ifndef SKP_SILK_STRUCTS_H
-#define SKP_SILK_STRUCTS_H
+#ifndef SILK_STRUCTS_H
+#define SILK_STRUCTS_H
 
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 
-#include "SKP_Silk_typedef.h"
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_define.h"
+#include "silk_typedef.h"
+#include "silk_SigProc_FIX.h"
+#include "silk_define.h"
 #include "entenc.h"
 #include "entdec.h"
 
@@ -58,7 +58,7 @@ typedef struct {
     SKP_int32   rand_seed;
     SKP_int32   prev_inv_gain_Q16;
     SKP_int     rewhite_flag;
-} SKP_Silk_nsq_state;
+} silk_nsq_state;
 
 /********************************/
 /* VAD state                    */
@@ -74,14 +74,14 @@ typedef struct {
     SKP_int32   inv_NL[ VAD_N_BANDS ];          /* Inverse noise energy level in each band                  */
     SKP_int32   NoiseLevelBias[ VAD_N_BANDS ];  /* Noise level estimator bias/offset                        */
     SKP_int32   counter;                        /* Frame counter used in the initial phase                  */
-} SKP_Silk_VAD_state;
+} silk_VAD_state;
 
 /* Variable cut-off low-pass filter state */
 typedef struct {
     SKP_int32                   In_LP_State[ 2 ];           /* Low pass filter state */
     SKP_int32                   transition_frame_no;        /* Counter which is mapped to a cut-off frequency */
     SKP_int                     mode;                       /* Operating mode, <0: switch down, >0: switch up; 0: do nothing */
-} SKP_Silk_LP_state;
+} silk_LP_state;
 
 /* Structure containing NLSF codebook */
 typedef struct {
@@ -96,26 +96,36 @@ typedef struct {
     const SKP_uint8             *ec_iCDF;
     const SKP_uint8             *ec_Rates_Q5;
     const SKP_int16             *deltaMin_Q15;
-} SKP_Silk_NLSF_CB_struct;
+} silk_NLSF_CB_struct;
 
 typedef struct {
-    SKP_int32                   pred_prev_Q13[ 2 ];
+    SKP_int16                   pred_prev_Q13[ 2 ];
     SKP_int16                   sMid[ 2 ];
     SKP_int16                   sSide[ 2 ];
-} stereo_state;
+    SKP_int32                   mid_side_amp_Q0[ 4 ];
+    SKP_int16                   smth_width_Q14;
+    SKP_int16                   width_prev_Q14;
+    SKP_int8                    ix[ MAX_FRAMES_PER_PACKET ][ 2 ][ 4 ];
+} stereo_enc_state;
 
 typedef struct {
-    SKP_int8        GainsIndices[ MAX_NB_SUBFR ];
-    SKP_int8        LTPIndex[ MAX_NB_SUBFR ];
-    SKP_int8        NLSFIndices[ MAX_LPC_ORDER + 1 ];
-    SKP_int16       lagIndex;
-    SKP_int8        contourIndex;
-    SKP_int8        signalType;
-    SKP_int8        quantOffsetType;
-    SKP_int8        NLSFInterpCoef_Q2;
-    SKP_int8        PERIndex;
-    SKP_int8        LTP_scaleIndex;
-    SKP_int8        Seed;
+    SKP_int16                   pred_prev_Q13[ 2 ];
+    SKP_int16                   sMid[ 2 ];
+    SKP_int16                   sSide[ 2 ];
+} stereo_dec_state;
+
+typedef struct {
+    SKP_int8                    GainsIndices[ MAX_NB_SUBFR ];
+    SKP_int8                    LTPIndex[ MAX_NB_SUBFR ];
+    SKP_int8                    NLSFIndices[ MAX_LPC_ORDER + 1 ];
+    SKP_int16                   lagIndex;
+    SKP_int8                    contourIndex;
+    SKP_int8                    signalType;
+    SKP_int8                    quantOffsetType;
+    SKP_int8                    NLSFInterpCoef_Q2;
+    SKP_int8                    PERIndex;
+    SKP_int8                    LTP_scaleIndex;
+    SKP_int8                    Seed;
 } SideInfoIndices;
 
 /********************************/
@@ -125,9 +135,9 @@ typedef struct {
     SKP_int32                       In_HP_State[ 2 ];               /* High pass filter state                                               */
     SKP_int32                       variable_HP_smth1_Q15;          /* State of first smoother                                              */
     SKP_int32                       variable_HP_smth2_Q15;          /* State of second smoother                                             */
-    SKP_Silk_LP_state               sLP;                            /* Low pass filter state                                                */
-    SKP_Silk_VAD_state              sVAD;                           /* Voice activity detector state                                        */
-    SKP_Silk_nsq_state              sNSQ;                           /* Noise Shape Quantizer State                                          */
+    silk_LP_state                   sLP;                            /* Low pass filter state                                                */
+    silk_VAD_state                  sVAD;                           /* Voice activity detector state                                        */
+    silk_nsq_state                  sNSQ;                           /* Noise Shape Quantizer State                                          */
     SKP_int16                       prev_NLSFq_Q15[ MAX_LPC_ORDER ];/* Previously quantized NLSF vector                                     */
     SKP_int                         speech_activity_Q8;             /* Speech activity                                                      */
     SKP_int                         allow_bandwidth_switch;         /* Flag indicating that switching of internal bandwidth is allowed      */
@@ -153,7 +163,7 @@ typedef struct {
     SKP_int                         PacketSize_ms;                  /* Number of milliseconds to put in each packet                         */
     SKP_int                         PacketLoss_perc;                /* Packet loss rate measured by farend                                  */
     SKP_int32                       frameCounter;
-    SKP_int                         Complexity;                     /* Complexity setting: 0-> low; 1-> medium; 2->high                     */
+    SKP_int                         Complexity;                     /* Complexity setting                                                   */
     SKP_int                         nStatesDelayedDecision;         /* Number of states in delayed decision quantization                    */
     SKP_int                         useInterpolatedNLSFs;           /* Flag for using NLSF interpolation                                    */
     SKP_int                         shapingLPCOrder;                /* Filter order for noise shaping filters                               */
@@ -171,7 +181,7 @@ typedef struct {
     SKP_int                         prefillFlag;                    /* Flag to indicate that only buffers are prefilled, no coding          */
     const SKP_uint8                 *pitch_lag_low_bits_iCDF;       /* Pointer to iCDF table for low bits of pitch lag index                */
     const SKP_uint8                 *pitch_contour_iCDF;            /* Pointer to iCDF table for pitch contour index                        */
-    const SKP_Silk_NLSF_CB_struct   *psNLSF_CB;                     /* Pointer to NLSF codebook                                             */
+    const silk_NLSF_CB_struct       *psNLSF_CB;                     /* Pointer to NLSF codebook                                             */
     SKP_int                         input_quality_bands_Q15[ VAD_N_BANDS ];
     SKP_int                         input_tilt_Q15;
     SKP_int                         SNR_dB_Q7;                      /* Quality setting                                                      */
@@ -184,12 +194,14 @@ typedef struct {
 	SKP_int8                        pulses[ MAX_FRAME_LENGTH ];
 
     /* Input/output buffering */
-    SKP_int16                       inputBuf[ MAX_FRAME_LENGTH ];   /* buffer containing input signal                                       */
+    SKP_int16                       inputBuf__[ MAX_FRAME_LENGTH + 2 ]; /* Buffer containing input signal                                   */
+    SKP_int16                       *inputBuf;                      /* Points to second element of above buffer                             */
     SKP_int                         inputBufIx;
     SKP_int                         nFramesPerPacket;
-    SKP_int                         nFramesAnalyzed;                /* Number of frames analyzed in current packet                          */
+    SKP_int                         nFramesEncoded;                 /* Number of frames analyzed in current packet                          */
 
-    SKP_int                         nChannels;
+    SKP_int                         nChannelsAPI;
+    SKP_int                         nChannelsInternal;
     SKP_int                         channelNb;
 
     /* Parameters For LTP scaling Control */
@@ -199,7 +211,7 @@ typedef struct {
     SKP_int                         ec_prevSignalType;
     SKP_int16                       ec_prevLagIndex;
 
-    SKP_Silk_resampler_state_struct resampler_state;
+    silk_resampler_state_struct resampler_state;
 
     /* DTX */
     SKP_int                         useDTX;                         /* Flag to enable DTX                                                   */
@@ -209,10 +221,10 @@ typedef struct {
     /* Inband Low Bitrate Redundancy (LBRR) data */ 
     SKP_int                         useInBandFEC;                   /* Saves the API setting for query                                      */
     SKP_int                         LBRR_enabled;                   /* Depends on useInBandFRC, bitrate and packet loss rate                */
-    SKP_int                         LBRR_GainIncreases;             /* Number of shifts to Gains to get LBRR rate Voiced frames             */
+    SKP_int                         LBRR_GainIncreases;             /* Gains increment for coding LBRR frames                               */
     SideInfoIndices                 indices_LBRR[ MAX_FRAMES_PER_PACKET ];
 	SKP_int8                        pulses_LBRR[ MAX_FRAMES_PER_PACKET ][ MAX_FRAME_LENGTH ];
-} SKP_Silk_encoder_state;
+} silk_encoder_state;
 
 
 /* Struct for Packet Loss Concealment */
@@ -228,7 +240,7 @@ typedef struct {
     SKP_int16   prevLTP_scale_Q14;
     SKP_int32   prevGain_Q16[ MAX_NB_SUBFR ];
     SKP_int     fs_kHz;
-} SKP_Silk_PLC_struct;
+} silk_PLC_struct;
 
 /* Struct for CNG */
 typedef struct {
@@ -238,7 +250,7 @@ typedef struct {
     SKP_int32   CNG_smth_Gain_Q16;
     SKP_int32   rand_seed;
     SKP_int     fs_kHz;
-} SKP_Silk_CNG_struct;
+} silk_CNG_struct;
 
 /********************************/
 /* Decoder state                */
@@ -275,23 +287,23 @@ typedef struct {
     SKP_int         LBRR_flag;
     SKP_int         LBRR_flags[ MAX_FRAMES_PER_PACKET ];
 
-    SKP_Silk_resampler_state_struct resampler_state;
+    silk_resampler_state_struct resampler_state;
 
-    const SKP_Silk_NLSF_CB_struct   *psNLSF_CB;                 /* Pointer to NLSF codebook                                             */
+    const silk_NLSF_CB_struct   *psNLSF_CB;                 /* Pointer to NLSF codebook                                             */
 
     /* Quantization indices */
     SideInfoIndices indices;
     
     /* CNG state */
-    SKP_Silk_CNG_struct sCNG;
+    silk_CNG_struct sCNG;
 
     /* Stuff used for PLC */
     SKP_int         lossCnt;
     SKP_int         prevSignalType;
 
-    SKP_Silk_PLC_struct sPLC;
+    silk_PLC_struct sPLC;
 
-} SKP_Silk_decoder_state;
+} silk_decoder_state;
 
 /************************/
 /* Decoder control      */
@@ -304,7 +316,7 @@ typedef struct {
     SKP_DWORD_ALIGN SKP_int16 PredCoef_Q12[ 2 ][ MAX_LPC_ORDER ];
     SKP_int16           LTPCoef_Q14[ LTP_ORDER * MAX_NB_SUBFR ];
     SKP_int             LTP_scale_Q14;
-} SKP_Silk_decoder_control;
+} silk_decoder_control;
 
 
 #ifdef __cplusplus
diff --git a/silk/SKP_Silk_sum_sqr_shift.c b/silk/silk_sum_sqr_shift.c
similarity index 96%
rename from silk/SKP_Silk_sum_sqr_shift.c
rename to silk/silk_sum_sqr_shift.c
index d1848ef2..ddf3b3df 100644
--- a/silk/SKP_Silk_sum_sqr_shift.c
+++ b/silk/silk_sum_sqr_shift.c
@@ -25,11 +25,11 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_SigProc_FIX.h"
 
 /* Compute number of bits to right shift the sum of squares of a vector */
 /* of int16s to make it fit in an int32                                 */
-void SKP_Silk_sum_sqr_shift(
+void silk_sum_sqr_shift(
     SKP_int32            *energy,            /* O    Energy of x, after shifting to the right            */
     SKP_int              *shift,             /* O    Number of bits right shift applied to energy        */
     const SKP_int16      *x,                 /* I    Input vector                                        */
diff --git a/silk/SKP_Silk_LSF_cos_table.c b/silk/silk_table_LSF_cos.c
similarity index 94%
rename from silk/SKP_Silk_LSF_cos_table.c
rename to silk/silk_table_LSF_cos.c
index 1fc87a7a..653a8d1b 100644
--- a/silk/SKP_Silk_LSF_cos_table.c
+++ b/silk/silk_table_LSF_cos.c
@@ -25,10 +25,11 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_SigProc_FIX.h"
+#include "silk_tables.h"
 
-// Q12 values (even)
-const SKP_int SKP_Silk_LSFCosTab_FIX_Q12[LSF_COS_TAB_SZ_FIX + 1] = {
+/* Cosine approximation table for LSF conversion */
+/* Q12 values (even) */
+const SKP_int16 silk_LSFCosTab_FIX_Q12[ LSF_COS_TAB_SZ_FIX + 1 ] = {
             8192,             8190,             8182,             8170,     
             8152,             8130,             8104,             8072,     
             8034,             7994,             7946,             7896,     
diff --git a/silk/silk_tables.h b/silk/silk_tables.h
new file mode 100644
index 00000000..85456ad5
--- /dev/null
+++ b/silk/silk_tables.h
@@ -0,0 +1,120 @@
+/***********************************************************************
+Copyright (c) 2006-2011, Skype Limited. All rights reserved. 
+Redistribution and use in source and binary forms, with or without 
+modification, (subject to the limitations in the disclaimer below) 
+are permitted provided that the following conditions are met:
+- Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+- Redistributions in binary form must reproduce the above copyright 
+notice, this list of conditions and the following disclaimer in the 
+documentation and/or other materials provided with the distribution.
+- Neither the name of Skype Limited, nor the names of specific 
+contributors, may be used to endorse or promote products derived from 
+this software without specific prior written permission.
+NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED 
+BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
+CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
+BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 
+FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 
+COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 
+USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+***********************************************************************/
+
+#ifndef SILK_TABLES_H
+#define SILK_TABLES_H
+
+#include "silk_define.h"
+#include "silk_structs.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/* entropy coding tables */
+extern const SKP_uint8  silk_gain_iCDF[ 3 ][ N_LEVELS_QGAIN / 8 ];                               /* 24 */
+extern const SKP_uint8  silk_delta_gain_iCDF[ MAX_DELTA_GAIN_QUANT - MIN_DELTA_GAIN_QUANT + 1 ]; /* 41 */
+
+extern const SKP_uint8  silk_pitch_lag_iCDF[ 2 * ( PITCH_EST_MAX_LAG_MS - PITCH_EST_MIN_LAG_MS ) ];  /* 32 */
+extern const SKP_uint8  silk_pitch_delta_iCDF[ 21 ];                                            /*  21 */
+extern const SKP_uint8  silk_pitch_contour_iCDF[ 34 ];                                          /*  34 */
+extern const SKP_uint8  silk_pitch_contour_NB_iCDF[ 11 ];                                       /*  11 */
+extern const SKP_uint8  silk_pitch_contour_10_ms_iCDF[ 12 ];                                    /*  12 */
+extern const SKP_uint8  silk_pitch_contour_10_ms_NB_iCDF[ 3 ];                                  /*   3 */
+
+extern const SKP_uint8  silk_pulses_per_block_iCDF[ N_RATE_LEVELS ][ MAX_PULSES + 2 ];          /* 180 */
+extern const SKP_uint8  silk_pulses_per_block_BITS_Q5[ N_RATE_LEVELS - 1 ][ MAX_PULSES + 2 ];   /* 162 */
+
+extern const SKP_uint8  silk_rate_levels_iCDF[ 2 ][ N_RATE_LEVELS - 1 ];                        /*  18 */
+extern const SKP_uint8  silk_rate_levels_BITS_Q5[ 2 ][ N_RATE_LEVELS - 1 ];                     /*  18 */
+
+extern const SKP_uint8  silk_max_pulses_table[ 4 ];                                             /*   4 */
+
+extern const SKP_uint8  silk_shell_code_table0[  44 ];                                          /*  44 */
+extern const SKP_uint8  silk_shell_code_table1[  65 ];                                          /*  65 */
+extern const SKP_uint8  silk_shell_code_table2[  90 ];                                          /*  90 */
+extern const SKP_uint8  silk_shell_code_table3[ 152 ];                                          /* 152 */
+extern const SKP_uint8  silk_shell_code_table_offsets[ MAX_PULSES + 1 ];                        /*  17 */
+
+extern const SKP_uint8  silk_lsb_iCDF[ 2 ];                                                     /*   2 */
+
+extern const SKP_uint8  silk_sign_iCDF[ 36 ];                                                   /*  36 */
+
+extern const SKP_uint8  silk_uniform3_iCDF[ 3 ];                                                /*   3 */
+extern const SKP_uint8  silk_uniform4_iCDF[ 4 ];                                                /*   4 */
+extern const SKP_uint8  silk_uniform5_iCDF[ 5 ];                                                /*   5 */
+extern const SKP_uint8  silk_uniform6_iCDF[ 6 ];                                                /*   6 */
+extern const SKP_uint8  silk_uniform8_iCDF[ 8 ];                                                /*   8 */
+
+extern const SKP_uint8  silk_NLSF_EXT_iCDF[ 7 ];                                                /*   7 */
+
+extern const SKP_uint8  silk_LTP_per_index_iCDF[ 3 ];                                           /*   3 */
+extern const SKP_uint8  * const silk_LTP_gain_iCDF_ptrs[ NB_LTP_CBKS ];                         /*   3 */
+extern const SKP_uint8  * const silk_LTP_gain_BITS_Q5_ptrs[ NB_LTP_CBKS ];                      /*   3 */
+extern const SKP_int16  silk_LTP_gain_middle_avg_RD_Q14;
+extern const SKP_int8   * const silk_LTP_vq_ptrs_Q7[ NB_LTP_CBKS ];                             /* 168 */
+extern const SKP_int8   silk_LTP_vq_sizes[ NB_LTP_CBKS ];                                       /*   3 */
+
+extern const SKP_uint8  silk_LTPscale_iCDF[ 3 ];                                                /*   4 */
+extern const SKP_int16  silk_LTPScales_table_Q14[ 3 ];
+
+extern const SKP_uint8  silk_type_offset_VAD_iCDF[ 4 ];                                         /*   4 */
+extern const SKP_uint8  silk_type_offset_no_VAD_iCDF[ 2 ];                                      /*   2 */
+
+extern const SKP_int16  silk_stereo_pred_quant_Q13[ STEREO_QUANT_TAB_SIZE ];                    /*  32 */
+extern const SKP_uint8  silk_stereo_pred_joint_iCDF[ 25 ];                                      /*  25 */
+extern const SKP_uint8  silk_stereo_only_code_mid_iCDF[ 2 ];                                    /*   2 */
+
+extern const SKP_uint8 * const silk_LBRR_flags_iCDF_ptr[ 2 ];                                   /*  10 */
+
+extern const SKP_uint8  silk_NLSF_interpolation_factor_iCDF[ 5 ];                               /*   5 */
+
+extern const silk_NLSF_CB_struct silk_NLSF_CB_WB;
+extern const silk_NLSF_CB_struct silk_NLSF_CB_NB_MB;
+
+/* Piece-wise linear mapping from bitrate in kbps to coding quality in dB SNR */
+extern const SKP_int32  silk_TargetRate_table_NB[  TARGET_RATE_TAB_SZ ];
+extern const SKP_int32  silk_TargetRate_table_MB[  TARGET_RATE_TAB_SZ ];
+extern const SKP_int32  silk_TargetRate_table_WB[  TARGET_RATE_TAB_SZ ];
+extern const SKP_int16  silk_SNR_table_Q1[         TARGET_RATE_TAB_SZ ];
+
+/* Quantization offsets */
+extern const SKP_int16  silk_Quantization_Offsets_Q10[ 2 ][ 2 ];
+
+/* Interpolation points for filter coefficients used in the bandwidth transition smoother */
+extern const SKP_int32  silk_Transition_LP_B_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NB ];
+extern const SKP_int32  silk_Transition_LP_A_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NA ];
+
+/* Rom table with cosine values */
+extern const SKP_int16 silk_LSFCosTab_FIX_Q12[ LSF_COS_TAB_SZ_FIX + 1 ];
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/silk/SKP_Silk_tables_LTP.c b/silk/silk_tables_LTP.c
similarity index 78%
rename from silk/SKP_Silk_tables_LTP.c
rename to silk/silk_tables_LTP.c
index 78d9c447..851c8cd5 100644
--- a/silk/SKP_Silk_tables_LTP.c
+++ b/silk/silk_tables_LTP.c
@@ -25,59 +25,59 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_tables.h"
+#include "silk_tables.h"
 
-const SKP_uint8 SKP_Silk_LTP_per_index_iCDF[3] = {
+const SKP_uint8 silk_LTP_per_index_iCDF[3] = {
 	   179,     99,      0
 };
 
-const SKP_uint8 SKP_Silk_LTP_gain_iCDF_0[8] = {
+const SKP_uint8 silk_LTP_gain_iCDF_0[8] = {
 	    71,     56,     43,     30,     21,     12,      6,      0
 };
 
-const SKP_uint8 SKP_Silk_LTP_gain_iCDF_1[16] = {
+const SKP_uint8 silk_LTP_gain_iCDF_1[16] = {
 	   199,    165,    144,    124,    109,     96,     84,     71,
 	    61,     51,     42,     32,     23,     15,      8,      0
 };
 
-const SKP_uint8 SKP_Silk_LTP_gain_iCDF_2[32] = {
+const SKP_uint8 silk_LTP_gain_iCDF_2[32] = {
 	   241,    225,    211,    199,    187,    175,    164,    153,
 	   142,    132,    123,    114,    105,     96,     88,     80,
 	    72,     64,     57,     50,     44,     38,     33,     29,
 	    24,     20,     16,     12,      9,      5,      2,      0
 };
 
-const SKP_int16 SKP_Silk_LTP_gain_middle_avg_RD_Q14 = 12304;
+const SKP_int16 silk_LTP_gain_middle_avg_RD_Q14 = 12304;
 
-const SKP_uint8 SKP_Silk_LTP_gain_BITS_Q5_0[8] = {
+const SKP_uint8 silk_LTP_gain_BITS_Q5_0[8] = {
 	    15,    131,    138,    138,    155,    155,    173,    173
 };
 
-const SKP_uint8 SKP_Silk_LTP_gain_BITS_Q5_1[16] = {
+const SKP_uint8 silk_LTP_gain_BITS_Q5_1[16] = {
 	    69,     93,    115,    118,    131,    138,    141,    138,
 	   150,    150,    155,    150,    155,    160,    166,    160
 };
 
-const SKP_uint8 SKP_Silk_LTP_gain_BITS_Q5_2[32] = {
+const SKP_uint8 silk_LTP_gain_BITS_Q5_2[32] = {
 	   131,    128,    134,    141,    141,    141,    145,    145,
 	   145,    150,    155,    155,    155,    155,    160,    160,
 	   160,    160,    166,    166,    173,    173,    182,    192,
 	   182,    192,    192,    192,    205,    192,    205,    224
 };
 
-const SKP_uint8 * const SKP_Silk_LTP_gain_iCDF_ptrs[NB_LTP_CBKS] = {
-    SKP_Silk_LTP_gain_iCDF_0,
-    SKP_Silk_LTP_gain_iCDF_1,
-    SKP_Silk_LTP_gain_iCDF_2
+const SKP_uint8 * const silk_LTP_gain_iCDF_ptrs[NB_LTP_CBKS] = {
+    silk_LTP_gain_iCDF_0,
+    silk_LTP_gain_iCDF_1,
+    silk_LTP_gain_iCDF_2
 };
 
-const SKP_uint8 * const SKP_Silk_LTP_gain_BITS_Q5_ptrs[NB_LTP_CBKS] = {
-    SKP_Silk_LTP_gain_BITS_Q5_0,
-    SKP_Silk_LTP_gain_BITS_Q5_1,
-    SKP_Silk_LTP_gain_BITS_Q5_2
+const SKP_uint8 * const silk_LTP_gain_BITS_Q5_ptrs[NB_LTP_CBKS] = {
+    silk_LTP_gain_BITS_Q5_0,
+    silk_LTP_gain_BITS_Q5_1,
+    silk_LTP_gain_BITS_Q5_2
 };
 
-const SKP_int8 SKP_Silk_LTP_gain_vq_0[8][5] = 
+const SKP_int8 silk_LTP_gain_vq_0[8][5] = 
 {
 {
 	     4,      6,     24,      7,      5
@@ -105,7 +105,7 @@ const SKP_int8 SKP_Silk_LTP_gain_vq_0[8][5] =
 }
 };
 
-const SKP_int8 SKP_Silk_LTP_gain_vq_1[16][5] = 
+const SKP_int8 silk_LTP_gain_vq_1[16][5] = 
 {
 {
 	    13,     22,     39,     23,     12
@@ -157,7 +157,7 @@ const SKP_int8 SKP_Silk_LTP_gain_vq_1[16][5] =
 }
 };
 
-const SKP_int8 SKP_Silk_LTP_gain_vq_2[32][5] = 
+const SKP_int8 silk_LTP_gain_vq_2[32][5] = 
 {
 {
 	    -6,     27,     61,     39,      5
@@ -257,12 +257,12 @@ const SKP_int8 SKP_Silk_LTP_gain_vq_2[32][5] =
 }
 };
 
-const SKP_int8 * const SKP_Silk_LTP_vq_ptrs_Q7[NB_LTP_CBKS] = {
-    (SKP_int8 *)&SKP_Silk_LTP_gain_vq_0[0][0],
-    (SKP_int8 *)&SKP_Silk_LTP_gain_vq_1[0][0],
-    (SKP_int8 *)&SKP_Silk_LTP_gain_vq_2[0][0]
+const SKP_int8 * const silk_LTP_vq_ptrs_Q7[NB_LTP_CBKS] = {
+    (SKP_int8 *)&silk_LTP_gain_vq_0[0][0],
+    (SKP_int8 *)&silk_LTP_gain_vq_1[0][0],
+    (SKP_int8 *)&silk_LTP_gain_vq_2[0][0]
 };
  
-const SKP_int8 SKP_Silk_LTP_vq_sizes[NB_LTP_CBKS] = {
+const SKP_int8 silk_LTP_vq_sizes[NB_LTP_CBKS] = {
     8, 16, 32 
 };
diff --git a/silk/SKP_Silk_tables_NLSF_CB_NB_MB.c b/silk/silk_tables_NLSF_CB_NB_MB.c
similarity index 89%
rename from silk/SKP_Silk_tables_NLSF_CB_NB_MB.c
rename to silk/silk_tables_NLSF_CB_NB_MB.c
index 48a84aec..5322531b 100644
--- a/silk/SKP_Silk_tables_NLSF_CB_NB_MB.c
+++ b/silk/silk_tables_NLSF_CB_NB_MB.c
@@ -25,9 +25,9 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_structs.h"
+#include "silk_structs.h"
 
-const SKP_uint8 SKP_Silk_NLSF_CB1_NB_MB_Q8[ 320 ] = {
+const SKP_uint8 silk_NLSF_CB1_NB_MB_Q8[ 320 ] = {
 	    12,     35,     60,     83,    108,    132,    157,    180,
 	   206,    228,     15,     32,     55,     77,    101,    125,
 	   151,    175,    201,    225,     19,     42,     66,     89,
@@ -70,7 +70,7 @@ const SKP_uint8 SKP_Silk_NLSF_CB1_NB_MB_Q8[ 320 ] = {
 	    64,     84,    104,    118,    156,    177,    201,    230
 };
 
-const SKP_uint8 SKP_Silk_NLSF_CB1_iCDF_NB_MB[ 64 ] = {
+const SKP_uint8 silk_NLSF_CB1_iCDF_NB_MB[ 64 ] = {
 	   212,    178,    148,    129,    108,     96,     85,     82,
 	    79,     77,     61,     59,     57,     56,     51,     49,
 	    48,     45,     42,     41,     40,     38,     36,     34,
@@ -81,7 +81,7 @@ const SKP_uint8 SKP_Silk_NLSF_CB1_iCDF_NB_MB[ 64 ] = {
 	    28,     20,     19,     18,     12,     11,      5,      0
 };
 
-const SKP_uint8 SKP_Silk_NLSF_CB2_SELECT_NB_MB[ 160 ] = {
+const SKP_uint8 silk_NLSF_CB2_SELECT_NB_MB[ 160 ] = {
 	    16,      0,      0,      0,      0,     99,     66,     36,
 	    36,     34,     36,     34,     34,     34,     34,     83,
 	    69,     36,     52,     34,    116,    102,     70,     68,
@@ -104,7 +104,7 @@ const SKP_uint8 SKP_Silk_NLSF_CB2_SELECT_NB_MB[ 160 ] = {
 	   171,    137,    139,    137,    155,    218,    219,    139
 };
 
-const SKP_uint8 SKP_Silk_NLSF_CB2_iCDF_NB_MB[ 72 ] = {
+const SKP_uint8 silk_NLSF_CB2_iCDF_NB_MB[ 72 ] = {
 	   255,    254,    253,    238,     14,      3,      2,      1,
 	     0,    255,    254,    252,    218,     35,      3,      2,
 	     1,      0,    255,    254,    250,    208,     59,      4,
@@ -116,7 +116,7 @@ const SKP_uint8 SKP_Silk_NLSF_CB2_iCDF_NB_MB[ 72 ] = {
 	   254,    236,    173,     95,     37,      7,      1,      0
 };
 
-const SKP_uint8 SKP_Silk_NLSF_CB2_BITS_NB_MB_Q5[ 72 ] = {
+const SKP_uint8 silk_NLSF_CB2_BITS_NB_MB_Q5[ 72 ] = {
 	   255,    255,    255,    131,      6,    145,    255,    255,
 	   255,    255,    255,    236,     93,     15,     96,    255,
 	   255,    255,    255,    255,    194,     83,     25,     71,
@@ -128,28 +128,28 @@ const SKP_uint8 SKP_Silk_NLSF_CB2_BITS_NB_MB_Q5[ 72 ] = {
 	   251,    123,     65,     55,     68,    100,    171,    255
 };
 
-const SKP_uint8 SKP_Silk_NLSF_PRED_NB_MB_Q8[ 18 ] = {
+const SKP_uint8 silk_NLSF_PRED_NB_MB_Q8[ 18 ] = {
 	   179,    138,    140,    148,    151,    149,    153,    151,
 	   163,    116,     67,     82,     59,     92,     72,    100,
 	    89,     92
 };
 
-const SKP_int16 SKP_Silk_NLSF_DELTA_MIN_NB_MB_Q15[ 11 ] = {
+const SKP_int16 silk_NLSF_DELTA_MIN_NB_MB_Q15[ 11 ] = {
 	   322,      3,      6,      3,      3,      3,      4,      3,
 	     3,      3,    461
 };
 
-const SKP_Silk_NLSF_CB_struct SKP_Silk_NLSF_CB_NB_MB =
+const silk_NLSF_CB_struct silk_NLSF_CB_NB_MB =
 {
     32,
     10,
-    SKP_FIX_CONST( 0.18, 16 ),
-    SKP_FIX_CONST( 1.0 / 0.18, 6 ),
-    SKP_Silk_NLSF_CB1_NB_MB_Q8,
-    SKP_Silk_NLSF_CB1_iCDF_NB_MB,
-    SKP_Silk_NLSF_PRED_NB_MB_Q8,
-    SKP_Silk_NLSF_CB2_SELECT_NB_MB,
-    SKP_Silk_NLSF_CB2_iCDF_NB_MB,
-    SKP_Silk_NLSF_CB2_BITS_NB_MB_Q5,
-    SKP_Silk_NLSF_DELTA_MIN_NB_MB_Q15,
+    SILK_FIX_CONST( 0.18, 16 ),
+    SILK_FIX_CONST( 1.0 / 0.18, 6 ),
+    silk_NLSF_CB1_NB_MB_Q8,
+    silk_NLSF_CB1_iCDF_NB_MB,
+    silk_NLSF_PRED_NB_MB_Q8,
+    silk_NLSF_CB2_SELECT_NB_MB,
+    silk_NLSF_CB2_iCDF_NB_MB,
+    silk_NLSF_CB2_BITS_NB_MB_Q5,
+    silk_NLSF_DELTA_MIN_NB_MB_Q15,
 };
diff --git a/silk/SKP_Silk_tables_NLSF_CB_WB.c b/silk/silk_tables_NLSF_CB_WB.c
similarity index 91%
rename from silk/SKP_Silk_tables_NLSF_CB_WB.c
rename to silk/silk_tables_NLSF_CB_WB.c
index d2e1945f..afa40f7c 100644
--- a/silk/SKP_Silk_tables_NLSF_CB_WB.c
+++ b/silk/silk_tables_NLSF_CB_WB.c
@@ -25,9 +25,9 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_structs.h"
+#include "silk_structs.h"
 
-const SKP_uint8 SKP_Silk_NLSF_CB1_WB_Q8[ 512 ] = {
+const SKP_uint8 silk_NLSF_CB1_WB_Q8[ 512 ] = {
 	     7,     23,     38,     54,     69,     85,    100,    116,
 	   131,    147,    162,    178,    193,    208,    223,    239,
 	    13,     25,     41,     55,     69,     83,     98,    112,
@@ -94,7 +94,7 @@ const SKP_uint8 SKP_Silk_NLSF_CB1_WB_Q8[ 512 ] = {
 	   110,    119,    129,    141,    175,    198,    218,    237
 };
 
-const SKP_uint8 SKP_Silk_NLSF_CB1_iCDF_WB[ 64 ] = {
+const SKP_uint8 silk_NLSF_CB1_iCDF_WB[ 64 ] = {
 	   225,    204,    201,    184,    183,    175,    158,    154,
 	   153,    135,    119,    115,    113,    110,    109,     99,
 	    98,     95,     79,     68,     52,     50,     48,     45,
@@ -105,7 +105,7 @@ const SKP_uint8 SKP_Silk_NLSF_CB1_iCDF_WB[ 64 ] = {
 	    24,     21,     11,      6,      5,      4,      3,      0
 };
 
-const SKP_uint8 SKP_Silk_NLSF_CB2_SELECT_WB[ 256 ] = {
+const SKP_uint8 silk_NLSF_CB2_SELECT_WB[ 256 ] = {
 	     0,      0,      0,      0,      0,      0,      0,      1,
 	   100,    102,    102,     68,     68,     36,     34,     96,
 	   164,    107,    158,    185,    180,    185,    139,    102,
@@ -140,7 +140,7 @@ const SKP_uint8 SKP_Silk_NLSF_CB2_SELECT_WB[ 256 ] = {
 	   100,    107,    120,    119,     36,    197,     24,      0
 };
 
-const SKP_uint8 SKP_Silk_NLSF_CB2_iCDF_WB[ 72 ] = {
+const SKP_uint8 silk_NLSF_CB2_iCDF_WB[ 72 ] = {
 	   255,    254,    253,    244,     12,      3,      2,      1,
 	     0,    255,    254,    252,    224,     38,      3,      2,
 	     1,      0,    255,    254,    251,    209,     57,      4,
@@ -152,7 +152,7 @@ const SKP_uint8 SKP_Silk_NLSF_CB2_iCDF_WB[ 72 ] = {
 	   248,    227,    177,    100,     19,      2,      1,      0
 };
 
-const SKP_uint8 SKP_Silk_NLSF_CB2_BITS_WB_Q5[ 72 ] = {
+const SKP_uint8 silk_NLSF_CB2_BITS_WB_Q5[ 72 ] = {
 	   255,    255,    255,    156,      4,    154,    255,    255,
 	   255,    255,    255,    227,    102,     15,     92,    255,
 	   255,    255,    255,    255,    213,     83,     24,     72,
@@ -164,30 +164,30 @@ const SKP_uint8 SKP_Silk_NLSF_CB2_BITS_WB_Q5[ 72 ] = {
 	   166,    116,     76,     55,     53,    125,    255,    255
 };
 
-const SKP_uint8 SKP_Silk_NLSF_PRED_WB_Q8[ 30 ] = {
+const SKP_uint8 silk_NLSF_PRED_WB_Q8[ 30 ] = {
 	   175,    148,    160,    176,    178,    173,    174,    164,
 	   177,    174,    196,    182,    198,    192,    182,     68,
 	    62,     66,     60,     72,    117,     85,     90,    118,
 	   136,    151,    142,    160,    142,    155
 };
 
-const SKP_int16 SKP_Silk_NLSF_DELTA_MIN_WB_Q15[ 17 ] = {
+const SKP_int16 silk_NLSF_DELTA_MIN_WB_Q15[ 17 ] = {
 	   121,      3,     42,      3,      3,      3,      5,     14,
 	    14,     10,     11,      3,      8,      9,      7,      3,
 	   347
 };
 
-const SKP_Silk_NLSF_CB_struct SKP_Silk_NLSF_CB_WB =
+const silk_NLSF_CB_struct silk_NLSF_CB_WB =
 {
     32,
     16,
-    SKP_FIX_CONST( 0.16, 16 ),
-    SKP_FIX_CONST( 1.0 / 0.16, 6 ),
-    SKP_Silk_NLSF_CB1_WB_Q8,
-    SKP_Silk_NLSF_CB1_iCDF_WB,
-    SKP_Silk_NLSF_PRED_WB_Q8,
-    SKP_Silk_NLSF_CB2_SELECT_WB,
-    SKP_Silk_NLSF_CB2_iCDF_WB,
-    SKP_Silk_NLSF_CB2_BITS_WB_Q5,
-    SKP_Silk_NLSF_DELTA_MIN_WB_Q15,
+    SILK_FIX_CONST( 0.16, 16 ),
+    SILK_FIX_CONST( 1.0 / 0.16, 6 ),
+    silk_NLSF_CB1_WB_Q8,
+    silk_NLSF_CB1_iCDF_WB,
+    silk_NLSF_PRED_WB_Q8,
+    silk_NLSF_CB2_SELECT_WB,
+    silk_NLSF_CB2_iCDF_WB,
+    silk_NLSF_CB2_BITS_WB_Q5,
+    silk_NLSF_DELTA_MIN_WB_Q15,
 };
diff --git a/silk/SKP_Silk_tables_gain.c b/silk/silk_tables_gain.c
similarity index 90%
rename from silk/SKP_Silk_tables_gain.c
rename to silk/silk_tables_gain.c
index c3953df8..a03ff283 100644
--- a/silk/SKP_Silk_tables_gain.c
+++ b/silk/silk_tables_gain.c
@@ -25,14 +25,14 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_tables.h"
+#include "silk_tables.h"
 
 #ifdef __cplusplus
 extern "C"
 {
 #endif
 
-const SKP_uint8 SKP_Silk_gain_iCDF[ 3 ][ N_LEVELS_QGAIN / 8 ] = 
+const SKP_uint8 silk_gain_iCDF[ 3 ][ N_LEVELS_QGAIN / 8 ] = 
 {
 {
 	   224,    112,     44,     15,      3,      2,      1,      0
@@ -45,7 +45,7 @@ const SKP_uint8 SKP_Silk_gain_iCDF[ 3 ][ N_LEVELS_QGAIN / 8 ] =
 }
 };
 
-const SKP_uint8 SKP_Silk_delta_gain_iCDF[ MAX_DELTA_GAIN_QUANT - MIN_DELTA_GAIN_QUANT + 1 ] = {
+const SKP_uint8 silk_delta_gain_iCDF[ MAX_DELTA_GAIN_QUANT - MIN_DELTA_GAIN_QUANT + 1 ] = {
 	   250,    245,    234,    203,     71,     50,     42,     38,
 	    35,     33,     31,     29,     28,     27,     26,     25,
 	    24,     23,     22,     21,     20,     19,     18,     17,
diff --git a/silk/SKP_Silk_tables_other.c b/silk/silk_tables_other.c
similarity index 62%
rename from silk/SKP_Silk_tables_other.c
rename to silk/silk_tables_other.c
index 2cbf607e..80dfde03 100644
--- a/silk/SKP_Silk_tables_other.c
+++ b/silk/silk_tables_other.c
@@ -25,9 +25,9 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_structs.h"
-#include "SKP_Silk_define.h"
-#include "SKP_Silk_tables.h"
+#include "silk_structs.h"
+#include "silk_define.h"
+#include "silk_tables.h"
 
 #ifdef __cplusplus
 extern "C"
@@ -35,81 +35,81 @@ extern "C"
 #endif
 
 /* Piece-wise linear mapping from bitrate in kbps to coding quality in dB SNR */
-const SKP_int32 TargetRate_table_NB[ TARGET_RATE_TAB_SZ ] = {
+const SKP_int32 silk_TargetRate_table_NB[ TARGET_RATE_TAB_SZ ] = {
     0,      8000,   9400,   11500,  13500,  17500,  25000,  MAX_TARGET_RATE_BPS
 };
-const SKP_int32 TargetRate_table_MB[ TARGET_RATE_TAB_SZ ] = {
-    0,      9000,   11800,  14200,  17700,  23700,  34400,  MAX_TARGET_RATE_BPS
+const SKP_int32 silk_TargetRate_table_MB[ TARGET_RATE_TAB_SZ ] = {
+    0,      9000,   12000,  14500,  18500,  24500,  35500,  MAX_TARGET_RATE_BPS
 };
-const SKP_int32 TargetRate_table_WB[ TARGET_RATE_TAB_SZ ] = {
-    0,      10500,  14000,  17000,  21300,  28000,  41500,  MAX_TARGET_RATE_BPS
+const SKP_int32 silk_TargetRate_table_WB[ TARGET_RATE_TAB_SZ ] = {
+    0,      10500,  14000,  17000,  21500,  28500,  42000,  MAX_TARGET_RATE_BPS
 };
-const SKP_int16 SNR_table_Q1[ TARGET_RATE_TAB_SZ ] = {
+const SKP_int16 silk_SNR_table_Q1[ TARGET_RATE_TAB_SZ ] = {
     19,     29,     35,     39,     44,     50,     60,     80
 };
 
 /* Tables for stereo predictor coding */
-const SKP_int16 SKP_Silk_stereo_pred_quant_Q13[ STEREO_QUANT_TAB_SIZE ] = {
+const SKP_int16 silk_stereo_pred_quant_Q13[ STEREO_QUANT_TAB_SIZE ] = {
     -13732, -10050, -8266, -7526, -6500, -5000, -2950,  -820, 
        820,   2950,  5000,  6500,  7526,  8266, 10050, 13732
 };
-const SKP_uint8  SKP_Silk_stereo_pred_joint_iCDF[ 25 ] = {
+const SKP_uint8  silk_stereo_pred_joint_iCDF[ 25 ] = {
     249, 247, 246, 245, 244, 
     234, 210, 202, 201, 200, 
     197, 174,  82,  59,  56, 
      55,  54,  46,  22,  12, 
      11,  10,   9,   7,   0
 };
+const SKP_uint8  silk_stereo_only_code_mid_iCDF[ 2 ] = { 64, 0 };
 
 /* Tables for LBRR flags */
-const SKP_uint8 SKP_Silk_LBRR_flags_2_iCDF[ 3 ] = { 203, 150, 0 };
-const SKP_uint8 SKP_Silk_LBRR_flags_3_iCDF[ 7 ] = { 215, 195, 166, 125, 110, 82, 0 };
-const SKP_uint8 * const SKP_Silk_LBRR_flags_iCDF_ptr[ 2 ] = {
-    SKP_Silk_LBRR_flags_2_iCDF,
-    SKP_Silk_LBRR_flags_3_iCDF
+const SKP_uint8 silk_LBRR_flags_2_iCDF[ 3 ] = { 203, 150, 0 };
+const SKP_uint8 silk_LBRR_flags_3_iCDF[ 7 ] = { 215, 195, 166, 125, 110, 82, 0 };
+const SKP_uint8 * const silk_LBRR_flags_iCDF_ptr[ 2 ] = {
+    silk_LBRR_flags_2_iCDF,
+    silk_LBRR_flags_3_iCDF
 };
 
 /* Table for LSB coding */
-const SKP_uint8 SKP_Silk_lsb_iCDF[ 2 ] = { 120, 0 };
+const SKP_uint8 silk_lsb_iCDF[ 2 ] = { 120, 0 };
 
 /* Tables for LTPScale */
-const SKP_uint8 SKP_Silk_LTPscale_iCDF[ 3 ] = { 128, 64, 0 };
+const SKP_uint8 silk_LTPscale_iCDF[ 3 ] = { 128, 64, 0 };
 
 /* Tables for signal type and offset coding */
-const SKP_uint8 SKP_Silk_type_offset_VAD_iCDF[ 4 ] = {
+const SKP_uint8 silk_type_offset_VAD_iCDF[ 4 ] = {
 	   232,    158,    10,      0
 };
-const SKP_uint8 SKP_Silk_type_offset_no_VAD_iCDF[ 2 ] = {
+const SKP_uint8 silk_type_offset_no_VAD_iCDF[ 2 ] = {
 	   230,      0
 };
 
 /* Tables for NLSF interpolation factor */
-const SKP_uint8 SKP_Silk_NLSF_interpolation_factor_iCDF[ 5 ] = { 243, 221, 192, 181, 0 };
+const SKP_uint8 silk_NLSF_interpolation_factor_iCDF[ 5 ] = { 243, 221, 192, 181, 0 };
 
 /* Quantization offsets */
-const SKP_int16  SKP_Silk_Quantization_Offsets_Q10[ 2 ][ 2 ] = {
+const SKP_int16  silk_Quantization_Offsets_Q10[ 2 ][ 2 ] = {
     { OFFSET_UVL_Q10, OFFSET_UVH_Q10 }, { OFFSET_VL_Q10, OFFSET_VH_Q10 }
 };
 
 /* Table for LTPScale */
-const SKP_int16 SKP_Silk_LTPScales_table_Q14[ 3 ] = { 15565, 12288, 8192 };
+const SKP_int16 silk_LTPScales_table_Q14[ 3 ] = { 15565, 12288, 8192 };
 
 /* Uniform entropy tables */
-const SKP_uint8 SKP_Silk_uniform2_iCDF[ 2 ] = { 128, 0 };
-const SKP_uint8 SKP_Silk_uniform3_iCDF[ 3 ] = { 171, 85, 0 };
-const SKP_uint8 SKP_Silk_uniform4_iCDF[ 4 ] = { 192, 128, 64, 0 };
-const SKP_uint8 SKP_Silk_uniform5_iCDF[ 5 ] = { 205, 154, 102, 51, 0 };
-const SKP_uint8 SKP_Silk_uniform6_iCDF[ 6 ] = { 213, 171, 128, 85, 43, 0 };
-const SKP_uint8 SKP_Silk_uniform8_iCDF[ 8 ] = { 224, 192, 160, 128, 96, 64, 32, 0 };
+const SKP_uint8 silk_uniform3_iCDF[ 3 ] = { 171, 85, 0 };
+const SKP_uint8 silk_uniform4_iCDF[ 4 ] = { 192, 128, 64, 0 };
+const SKP_uint8 silk_uniform5_iCDF[ 5 ] = { 205, 154, 102, 51, 0 };
+const SKP_uint8 silk_uniform6_iCDF[ 6 ] = { 213, 171, 128, 85, 43, 0 };
+const SKP_uint8 silk_uniform8_iCDF[ 8 ] = { 224, 192, 160, 128, 96, 64, 32, 0 };
 
-const SKP_uint8 SKP_Silk_NLSF_EXT_iCDF[ 7 ] = { 100, 40, 16, 7, 3, 1, 0 };
+const SKP_uint8 silk_NLSF_EXT_iCDF[ 7 ] = { 100, 40, 16, 7, 3, 1, 0 };
 
 /*  Elliptic/Cauer filters designed with 0.1 dB passband ripple, 
         80 dB minimum stopband attenuation, and
         [0.95 : 0.15 : 0.35] normalized cut off frequencies. */
 
 /* Interpolation points for filter coefficients used in the bandwidth transition smoother */
-const SKP_int32 SKP_Silk_Transition_LP_B_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NB ] = 
+const SKP_int32 silk_Transition_LP_B_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NB ] = 
 {
 {    250767114,  501534038,  250767114  },
 {    209867381,  419732057,  209867381  },
@@ -119,7 +119,7 @@ const SKP_int32 SKP_Silk_Transition_LP_B_Q28[ TRANSITION_INT_NUM ][ TRANSITION_N
 };
 
 /* Interpolation points for filter coefficients used in the bandwidth transition smoother */
-const SKP_int32 SKP_Silk_Transition_LP_A_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NA ] = 
+const SKP_int32 silk_Transition_LP_A_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NA ] = 
 {
 {    506393414,  239854379  },
 {    411067935,  169683996  },
diff --git a/silk/SKP_Silk_tables_pitch_lag.c b/silk/silk_tables_pitch_lag.c
similarity index 85%
rename from silk/SKP_Silk_tables_pitch_lag.c
rename to silk/silk_tables_pitch_lag.c
index b4638df4..aa71e592 100644
--- a/silk/SKP_Silk_tables_pitch_lag.c
+++ b/silk/silk_tables_pitch_lag.c
@@ -25,22 +25,22 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_tables.h"
+#include "silk_tables.h"
 
-const SKP_uint8 SKP_Silk_pitch_lag_iCDF[ 2 * ( PITCH_EST_MAX_LAG_MS - PITCH_EST_MIN_LAG_MS ) ] = {
+const SKP_uint8 silk_pitch_lag_iCDF[ 2 * ( PITCH_EST_MAX_LAG_MS - PITCH_EST_MIN_LAG_MS ) ] = {
 	   253,    250,    244,    233,    212,    182,    150,    131,
 	   120,    110,     98,     85,     72,     60,     49,     40,
 	    32,     25,     19,     15,     13,     11,      9,      8,
 	     7,      6,      5,      4,      3,      2,      1,      0
 };
 
-const SKP_uint8 SKP_Silk_pitch_delta_iCDF[21] = {
+const SKP_uint8 silk_pitch_delta_iCDF[21] = {
        210,    208,    206,    203,    199,    193,    183,    168, 
        142,    104,     74,     52,     37,     27,     20,     14, 
         10,      6,      4,      2,      0
 };
 
-const SKP_uint8 SKP_Silk_pitch_contour_iCDF[34] = {
+const SKP_uint8 silk_pitch_contour_iCDF[34] = {
 	   223,    201,    183,    167,    152,    138,    124,    111,
 	    98,     88,     79,     70,     62,     56,     50,     44,
 	    39,     35,     31,     27,     24,     21,     18,     16,
@@ -48,17 +48,17 @@ const SKP_uint8 SKP_Silk_pitch_contour_iCDF[34] = {
 	     1,      0
 };
 
-const SKP_uint8 SKP_Silk_pitch_contour_NB_iCDF[11] = {
+const SKP_uint8 silk_pitch_contour_NB_iCDF[11] = {
 	   188,    176,    155,    138,    119,     97,     67,     43,
 	    26,     10,      0
 };
 
-const SKP_uint8 SKP_Silk_pitch_contour_10_ms_iCDF[12] = {
+const SKP_uint8 silk_pitch_contour_10_ms_iCDF[12] = {
 	   165,    119,     80,     61,     47,     35,     27,     20,
 	    14,      9,      4,      0
 };
 
-const SKP_uint8 SKP_Silk_pitch_contour_10_ms_NB_iCDF[3] = {
+const SKP_uint8 silk_pitch_contour_10_ms_NB_iCDF[3] = {
 	   113,     63,      0
 };
 
diff --git a/silk/SKP_Silk_tables_pulses_per_block.c b/silk/silk_tables_pulses_per_block.c
similarity index 90%
rename from silk/SKP_Silk_tables_pulses_per_block.c
rename to silk/silk_tables_pulses_per_block.c
index 02518545..f6984cb8 100644
--- a/silk/SKP_Silk_tables_pulses_per_block.c
+++ b/silk/silk_tables_pulses_per_block.c
@@ -25,13 +25,13 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#include "SKP_Silk_tables.h"
+#include "silk_tables.h"
 
-const SKP_uint8 SKP_Silk_max_pulses_table[ 4 ] = {
+const SKP_uint8 silk_max_pulses_table[ 4 ] = {
 	     8,     10,     12,     16
 };
 
-const SKP_uint8 SKP_Silk_pulses_per_block_iCDF[ 10 ][ 18 ] = {
+const SKP_uint8 silk_pulses_per_block_iCDF[ 10 ][ 18 ] = {
 {
 	   125,     51,     26,     18,     15,     12,     11,     10,
 	     9,      8,      7,      6,      5,      4,      3,      2,
@@ -84,7 +84,7 @@ const SKP_uint8 SKP_Silk_pulses_per_block_iCDF[ 10 ][ 18 ] = {
 }
 };
 
-const SKP_uint8 SKP_Silk_pulses_per_block_BITS_Q5[ 9 ][ 18 ] = {
+const SKP_uint8 silk_pulses_per_block_BITS_Q5[ 9 ][ 18 ] = {
 {
 	    31,     57,    107,    160,    205,    205,    255,    255,
 	   255,    255,    255,    255,    255,    255,    255,    255,
@@ -132,7 +132,7 @@ const SKP_uint8 SKP_Silk_pulses_per_block_BITS_Q5[ 9 ][ 18 ] = {
 }
 };
 
-const SKP_uint8 SKP_Silk_rate_levels_iCDF[ 2 ][ 9 ] = 
+const SKP_uint8 silk_rate_levels_iCDF[ 2 ][ 9 ] = 
 {
 {
 	   241,    190,    178,    132,     87,     74,     41,     14,
@@ -144,7 +144,7 @@ const SKP_uint8 SKP_Silk_rate_levels_iCDF[ 2 ][ 9 ] =
 }
 };
 
-const SKP_uint8 SKP_Silk_rate_levels_BITS_Q5[ 2 ][ 9 ] = 
+const SKP_uint8 silk_rate_levels_BITS_Q5[ 2 ][ 9 ] = 
 {
 {
 	   131,     74,    141,     79,     80,    138,     95,    104,
@@ -156,7 +156,7 @@ const SKP_uint8 SKP_Silk_rate_levels_BITS_Q5[ 2 ][ 9 ] =
 }
 };
 
-const SKP_uint8 SKP_Silk_shell_code_table0[ 44 ] = {
+const SKP_uint8 silk_shell_code_table0[ 44 ] = {
 	   128,      0,    214,     42,      0,    235,    128,     21,
 	     0,    244,    184,     72,     11,      0,    248,    214,
 	   128,     42,      7,      0,    248,    225,    170,     80,
@@ -165,7 +165,7 @@ const SKP_uint8 SKP_Silk_shell_code_table0[ 44 ] = {
 	    35,     15,      5,      0
 };
 
-const SKP_uint8 SKP_Silk_shell_code_table1[ 65 ] = {
+const SKP_uint8 silk_shell_code_table1[ 65 ] = {
 	   129,      0,    207,     50,      0,    236,    129,     20,
 	     0,    245,    185,     72,     10,      0,    249,    213,
 	   129,     42,      6,      0,    250,    226,    169,     87,
@@ -177,7 +177,7 @@ const SKP_uint8 SKP_Silk_shell_code_table1[ 65 ] = {
 	     0
 };
 
-const SKP_uint8 SKP_Silk_shell_code_table2[ 90 ] = {
+const SKP_uint8 silk_shell_code_table2[ 90 ] = {
 	   129,      0,    203,     54,      0,    234,    129,     23,
 	     0,    245,    184,     73,     10,      0,    250,    215,
 	   129,     41,      5,      0,    252,    232,    173,     86,
@@ -192,7 +192,7 @@ const SKP_uint8 SKP_Silk_shell_code_table2[ 90 ] = {
 	     1,      0
 };
 
-const SKP_uint8 SKP_Silk_shell_code_table3[ 152 ] = {
+const SKP_uint8 silk_shell_code_table3[ 152 ] = {
 	   130,      0,    200,     58,      0,    231,    130,     26,
 	     0,    244,    184,     76,     12,      0,    249,    214,
 	   130,     43,      6,      0,    252,    232,    173,     87,
@@ -214,13 +214,13 @@ const SKP_uint8 SKP_Silk_shell_code_table3[ 152 ] = {
 	    76,     42,     18,      4,      3,      2,      1,      0
 };
 
-const SKP_uint8 SKP_Silk_shell_code_table_offsets[ 17 ] = {
+const SKP_uint8 silk_shell_code_table_offsets[ 17 ] = {
 	     0,      0,      2,      5,      9,     14,     20,     27,
 	    35,     44,     54,     65,     77,     90,    104,    119,
 	   135
 };
 
-const SKP_uint8 SKP_Silk_sign_iCDF[ 36 ] = {
+const SKP_uint8 silk_sign_iCDF[ 36 ] = {
 	    49,     67,     77,     82,     93,     99,     11,     18,
 	    24,     31,     36,     45,     46,     66,     78,     87,
 	    94,    104,     14,     21,     32,     42,     51,     66,
diff --git a/silk/SKP_Silk_tuning_parameters.h b/silk/silk_tuning_parameters.h
similarity index 86%
rename from silk/SKP_Silk_tuning_parameters.h
rename to silk/silk_tuning_parameters.h
index e85336de..ea761f06 100644
--- a/silk/SKP_Silk_tuning_parameters.h
+++ b/silk/silk_tuning_parameters.h
@@ -25,14 +25,17 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#ifndef SKP_SILK_TUNING_PARAMETERS_H
-#define SKP_SILK_TUNING_PARAMETERS_H
+#ifndef SILK_TUNING_PARAMETERS_H
+#define SILK_TUNING_PARAMETERS_H
 
 #ifdef __cplusplus
 extern "C"
 {
 #endif
 
+/* Decay time for bitreservoir */
+#define BITRESERVOIR_DECAY_TIME_MS                      500
+
 /*******************/
 /* Pitch estimator */
 /*******************/
@@ -69,14 +72,12 @@ extern "C"
 /* Smoothing parameters for low end of pitch frequency range estimation */
 #define VARIABLE_HP_SMTH_COEF1                          0.1f
 #define VARIABLE_HP_SMTH_COEF2                          0.015f
-
-/* Min and max values for low end of pitch frequency range estimation */
-#define VARIABLE_HP_MIN_FREQ                            80.0f
-#define VARIABLE_HP_MAX_FREQ                            150.0f
-
-/* Max absolute difference between log2 of pitch frequency and smoother state, to enter the smoother */
 #define VARIABLE_HP_MAX_DELTA_FREQ                      0.4f
 
+/* Min and max cut-off frequency values (-3 dB points) */
+#define VARIABLE_HP_MIN_CUTOFF_HZ                       60.0f
+#define VARIABLE_HP_MAX_CUTOFF_HZ                       100.0f
+
 /***********/
 /* Various */
 /***********/
@@ -92,7 +93,7 @@ extern "C"
 /*************************/
 
 /* reduction in coding SNR during low speech activity */
-#define BG_SNR_DECR_dB                                  4.0f
+#define BG_SNR_DECR_dB                                  2.0f
 
 /* factor for reducing quantization noise during voiced speech */
 #define HARM_SNR_INCR_dB                                2.0f
@@ -128,7 +129,7 @@ extern "C"
 #define HIGH_RATE_OR_LOW_QUALITY_HARMONIC_SHAPING       0.2f
 
 /* parameter for shaping noise towards higher frequencies */
-#define HP_NOISE_COEF                                   0.3f
+#define HP_NOISE_COEF                                   0.25f
 
 /* parameter for shaping noise even more towards higher frequencies during voiced speech */
 #define HARM_HP_NOISE_COEF                              0.35f
@@ -149,12 +150,12 @@ extern "C"
 #define SUBFR_SMTH_COEF                                 0.4f
 
 /* parameters defining the R/D tradeoff in the residual quantizer */
-#define LAMBDA_OFFSET                                   1.3f
-#define LAMBDA_SPEECH_ACT                               -0.3f
+#define LAMBDA_OFFSET                                   1.2f
+#define LAMBDA_SPEECH_ACT                               -0.2f
 #define LAMBDA_DELAYED_DECISIONS                        -0.05f
-#define LAMBDA_INPUT_QUALITY                            -0.2f
-#define LAMBDA_CODING_QUALITY                           -0.1f
-#define LAMBDA_QUANT_OFFSET                             1.5f
+#define LAMBDA_INPUT_QUALITY                            -0.1f
+#define LAMBDA_CODING_QUALITY                           -0.2f
+#define LAMBDA_QUANT_OFFSET                             0.8f
 
 /* Compensation in bitrate calculations for 10 ms modes */
 #define REDUCE_BITRATE_10_MS_BPS                        2200
@@ -166,4 +167,4 @@ extern "C"
 }
 #endif
 
-#endif // SKP_SILK_TUNING_PARAMETERS_H
+#endif // SILK_TUNING_PARAMETERS_H
diff --git a/silk/SKP_Silk_typedef.h b/silk/silk_typedef.h
similarity index 96%
rename from silk/SKP_Silk_typedef.h
rename to silk/silk_typedef.h
index f2c1f6f2..40ca766b 100644
--- a/silk/SKP_Silk_typedef.h
+++ b/silk/silk_typedef.h
@@ -25,8 +25,8 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************/
 
-#ifndef _SKP_SILK_API_TYPDEF_H_
-#define _SKP_SILK_API_TYPDEF_H_
+#ifndef _SILK_TYPEDEF_H_
+#define _SILK_TYPEDEF_H_
 
 #ifndef SKP_USE_DOUBLE_PRECISION_FLOATS
 #define SKP_USE_DOUBLE_PRECISION_FLOATS     0
diff --git a/silk_headers.txt b/silk_headers.txt
index 1e14f1fd..6f160b7f 100644
--- a/silk_headers.txt
+++ b/silk_headers.txt
@@ -1,25 +1,25 @@
-silk/SKP_debug.h
-silk/SKP_Silk_control.h
-silk/SKP_Silk_errors.h
-silk/SKP_Silk_SDK_API.h
-silk/SKP_Silk_typedef.h
-silk/SKP_Silk_define.h
-silk/SKP_Silk_main.h
-silk/SKP_Silk_PLC.h
-silk/SKP_Silk_structs.h
-silk/SKP_Silk_tables.h
-silk/SKP_Silk_tuning_parameters.h
-silk/SKP_Silk_Inlines.h
-silk/SKP_Silk_MacroCount.h
-silk/SKP_Silk_MacroDebug.h
-silk/SKP_Silk_macros.h
-silk/SKP_Silk_pitch_est_defines.h
-silk/SKP_Silk_resampler_private.h
-silk/SKP_Silk_resampler_rom.h
-silk/SKP_Silk_resampler_structs.h
-silk/SKP_Silk_SigProc_FIX.h
-silk/fixed/SKP_Silk_main_FIX.h
-silk/fixed/SKP_Silk_structs_FIX.h
-silk/float/SKP_Silk_main_FLP.h
-silk/float/SKP_Silk_structs_FLP.h
-silk/float/SKP_Silk_SigProc_FLP.h
+silk/silk_debug.h
+silk/silk_control.h
+silk/silk_errors.h
+silk/silk_API.h
+silk/silk_typedef.h
+silk/silk_define.h
+silk/silk_main.h
+silk/silk_PLC.h
+silk/silk_structs.h
+silk/silk_tables.h
+silk/silk_tuning_parameters.h
+silk/silk_Inlines.h
+silk/silk_MacroCount.h
+silk/silk_MacroDebug.h
+silk/silk_macros.h
+silk/silk_pitch_est_defines.h
+silk/silk_resampler_private.h
+silk/silk_resampler_rom.h
+silk/silk_resampler_structs.h
+silk/silk_SigProc_FIX.h
+silk/fixed/silk_main_FIX.h
+silk/fixed/silk_structs_FIX.h
+silk/float/silk_main_FLP.h
+silk/float/silk_structs_FLP.h
+silk/float/silk_SigProc_FLP.h
diff --git a/silk_sources.mk b/silk_sources.mk
index f9ae7a5a..bb523c36 100644
--- a/silk_sources.mk
+++ b/silk_sources.mk
@@ -1,151 +1,152 @@
 SILK_SOURCES = \
-silk/SKP_Silk_CNG.c \
-silk/SKP_Silk_code_signs.c \
-silk/SKP_Silk_create_init_destroy.c \
-silk/SKP_Silk_decode_core.c \
-silk/SKP_Silk_decode_frame.c \
-silk/SKP_Silk_decode_parameters.c \
-silk/SKP_Silk_decode_indices.c \
-silk/SKP_Silk_decode_pulses.c \
-silk/SKP_Silk_decoder_set_fs.c \
-silk/SKP_Silk_dec_API.c \
-silk/SKP_Silk_enc_API.c \
-silk/SKP_Silk_encode_indices.c \
-silk/SKP_Silk_encode_pulses.c \
-silk/SKP_Silk_gain_quant.c \
-silk/SKP_Silk_interpolate.c \
-silk/SKP_Silk_LP_variable_cutoff.c \
-silk/SKP_Silk_NLSF2A_stable.c \
-silk/SKP_Silk_NLSF_decode.c \
-silk/SKP_Silk_NSQ.c \
-silk/SKP_Silk_NSQ_del_dec.c \
-silk/SKP_Silk_PLC.c \
-silk/SKP_Silk_shell_coder.c \
-silk/SKP_Silk_tables_gain.c \
-silk/SKP_Silk_tables_LTP.c \
-silk/SKP_Silk_tables_NLSF_CB_NB_MB.c \
-silk/SKP_Silk_tables_NLSF_CB_WB.c \
-silk/SKP_Silk_tables_other.c \
-silk/SKP_Silk_tables_pitch_lag.c \
-silk/SKP_Silk_tables_pulses_per_block.c \
-silk/SKP_Silk_VAD.c \
-silk/SKP_Silk_control_audio_bandwidth.c \
-silk/SKP_Silk_quant_LTP_gains.c \
-silk/SKP_Silk_VQ_WMat_EC.c \
-silk/SKP_Silk_HP_variable_cutoff.c \
-silk/SKP_Silk_NLSF_encode.c \
-silk/SKP_Silk_NLSF_VQ.c \
-silk/SKP_Silk_NLSF_unpack.c \
-silk/SKP_Silk_NLSF_del_dec_quant.c \
-silk/SKP_Silk_process_NLSFs.c \
-silk/SKP_Silk_stereo_LR_to_MS.c \
-silk/SKP_Silk_stereo_MS_to_LR.c \
-silk/SKP_Silk_check_control_input.c \
-silk/SKP_Silk_control_SNR.c \
-silk/SKP_Silk_init_encoder.c \
-silk/SKP_Silk_control_codec.c \
-silk/SKP_Silk_A2NLSF.c \
-silk/SKP_Silk_ana_filt_bank_1.c \
-silk/SKP_Silk_apply_sine_window.c \
-silk/SKP_Silk_array_maxabs.c \
-silk/SKP_Silk_autocorr.c \
-silk/SKP_Silk_biquad_alt.c \
-silk/SKP_Silk_burg_modified.c \
-silk/SKP_Silk_bwexpander_32.c \
-silk/SKP_Silk_bwexpander.c \
-silk/SKP_Silk_debug.c \
-silk/SKP_Silk_decode_pitch.c \
-silk/SKP_Silk_inner_prod_aligned.c \
-silk/SKP_Silk_k2a.c \
-silk/SKP_Silk_k2a_Q16.c \
-silk/SKP_Silk_lin2log.c \
-silk/SKP_Silk_log2lin.c \
-silk/SKP_Silk_LPC_analysis_filter.c \
-silk/SKP_Silk_LPC_inv_pred_gain.c \
-silk/SKP_Silk_LPC_stabilize.c \
-silk/SKP_Silk_LPC_synthesis_filter.c \
-silk/SKP_Silk_LPC_synthesis_order16.c \
-silk/SKP_Silk_LSF_cos_table.c \
-silk/SKP_Silk_NLSF2A.c \
-silk/SKP_Silk_NLSF_stabilize.c \
-silk/SKP_Silk_NLSF_VQ_weights_laroia.c \
-silk/SKP_Silk_pitch_analysis_core.c \
-silk/SKP_Silk_pitch_est_tables.c \
-silk/SKP_Silk_resampler.c \
-silk/SKP_Silk_resampler_down2_3.c \
-silk/SKP_Silk_resampler_down2.c \
-silk/SKP_Silk_resampler_down3.c \
-silk/SKP_Silk_resampler_private_AR2.c \
-silk/SKP_Silk_resampler_private_ARMA4.c \
-silk/SKP_Silk_resampler_private_copy.c \
-silk/SKP_Silk_resampler_private_down4.c \
-silk/SKP_Silk_resampler_private_down_FIR.c \
-silk/SKP_Silk_resampler_private_IIR_FIR.c \
-silk/SKP_Silk_resampler_private_up2_HQ.c \
-silk/SKP_Silk_resampler_private_up4.c \
-silk/SKP_Silk_resampler_rom.c \
-silk/SKP_Silk_resampler_up2.c \
-silk/SKP_Silk_scale_copy_vector16.c \
-silk/SKP_Silk_scale_vector.c \
-silk/SKP_Silk_schur64.c \
-silk/SKP_Silk_schur.c \
-silk/SKP_Silk_sigm_Q15.c \
-silk/SKP_Silk_sort.c \
-silk/SKP_Silk_sum_sqr_shift.c \
-silk/SKP_Silk_stereo_decode_pred.c \
-silk/SKP_Silk_stereo_encode_pred.c \
-silk/SKP_Silk_stereo_find_predictor.c
+silk/silk_CNG.c \
+silk/silk_code_signs.c \
+silk/silk_create_init_destroy.c \
+silk/silk_decode_core.c \
+silk/silk_decode_frame.c \
+silk/silk_decode_parameters.c \
+silk/silk_decode_indices.c \
+silk/silk_decode_pulses.c \
+silk/silk_decoder_set_fs.c \
+silk/silk_dec_API.c \
+silk/silk_enc_API.c \
+silk/silk_encode_indices.c \
+silk/silk_encode_pulses.c \
+silk/silk_gain_quant.c \
+silk/silk_interpolate.c \
+silk/silk_LP_variable_cutoff.c \
+silk/silk_NLSF2A_stable.c \
+silk/silk_NLSF_decode.c \
+silk/silk_NSQ.c \
+silk/silk_NSQ_del_dec.c \
+silk/silk_PLC.c \
+silk/silk_shell_coder.c \
+silk/silk_tables_gain.c \
+silk/silk_tables_LTP.c \
+silk/silk_tables_NLSF_CB_NB_MB.c \
+silk/silk_tables_NLSF_CB_WB.c \
+silk/silk_tables_other.c \
+silk/silk_tables_pitch_lag.c \
+silk/silk_tables_pulses_per_block.c \
+silk/silk_VAD.c \
+silk/silk_control_audio_bandwidth.c \
+silk/silk_quant_LTP_gains.c \
+silk/silk_VQ_WMat_EC.c \
+silk/silk_HP_variable_cutoff.c \
+silk/silk_NLSF_encode.c \
+silk/silk_NLSF_VQ.c \
+silk/silk_NLSF_unpack.c \
+silk/silk_NLSF_del_dec_quant.c \
+silk/silk_process_NLSFs.c \
+silk/silk_stereo_LR_to_MS.c \
+silk/silk_stereo_MS_to_LR.c \
+silk/silk_check_control_input.c \
+silk/silk_control_SNR.c \
+silk/silk_init_encoder.c \
+silk/silk_control_codec.c \
+silk/silk_A2NLSF.c \
+silk/silk_ana_filt_bank_1.c \
+silk/silk_apply_sine_window.c \
+silk/silk_array_maxabs.c \
+silk/silk_autocorr.c \
+silk/silk_biquad_alt.c \
+silk/silk_burg_modified.c \
+silk/silk_bwexpander_32.c \
+silk/silk_bwexpander.c \
+silk/silk_debug.c \
+silk/silk_decode_pitch.c \
+silk/silk_inner_prod_aligned.c \
+silk/silk_k2a.c \
+silk/silk_k2a_Q16.c \
+silk/silk_lin2log.c \
+silk/silk_log2lin.c \
+silk/silk_LPC_analysis_filter.c \
+silk/silk_LPC_inv_pred_gain.c \
+silk/silk_LPC_stabilize.c \
+silk/silk_LPC_synthesis_filter.c \
+silk/silk_LPC_synthesis_order16.c \
+silk/silk_table_LSF_cos.c \
+silk/silk_NLSF2A.c \
+silk/silk_NLSF_stabilize.c \
+silk/silk_NLSF_VQ_weights_laroia.c \
+silk/silk_pitch_analysis_core.c \
+silk/silk_pitch_est_tables.c \
+silk/silk_resampler.c \
+silk/silk_resampler_down2_3.c \
+silk/silk_resampler_down2.c \
+silk/silk_resampler_down3.c \
+silk/silk_resampler_private_AR2.c \
+silk/silk_resampler_private_ARMA4.c \
+silk/silk_resampler_private_copy.c \
+silk/silk_resampler_private_down4.c \
+silk/silk_resampler_private_down_FIR.c \
+silk/silk_resampler_private_IIR_FIR.c \
+silk/silk_resampler_private_up2_HQ.c \
+silk/silk_resampler_private_up4.c \
+silk/silk_resampler_rom.c \
+silk/silk_resampler_up2.c \
+silk/silk_scale_copy_vector16.c \
+silk/silk_scale_vector.c \
+silk/silk_schur64.c \
+silk/silk_schur.c \
+silk/silk_sigm_Q15.c \
+silk/silk_sort.c \
+silk/silk_sum_sqr_shift.c \
+silk/silk_stereo_decode_pred.c \
+silk/silk_stereo_encode_pred.c \
+silk/silk_stereo_find_predictor.c \
+silk/silk_stereo_quant_pred.c
 
 
 if FIXED_POINT
 SILK_SOURCES += \
-silk/fixed/SKP_Silk_LTP_analysis_filter_FIX.c \
-silk/fixed/SKP_Silk_LTP_scale_ctrl_FIX.c \
-silk/fixed/SKP_Silk_corrMatrix_FIX.c \
-silk/fixed/SKP_Silk_encode_frame_FIX.c \
-silk/fixed/SKP_Silk_find_LPC_FIX.c \
-silk/fixed/SKP_Silk_find_LTP_FIX.c \
-silk/fixed/SKP_Silk_find_pitch_lags_FIX.c \
-silk/fixed/SKP_Silk_find_pred_coefs_FIX.c \
-silk/fixed/SKP_Silk_noise_shape_analysis_FIX.c \
-silk/fixed/SKP_Silk_prefilter_FIX.c \
-silk/fixed/SKP_Silk_process_gains_FIX.c \
-silk/fixed/SKP_Silk_regularize_correlations_FIX.c \
-silk/fixed/SKP_Silk_residual_energy16_FIX.c \
-silk/fixed/SKP_Silk_residual_energy_FIX.c \
-silk/fixed/SKP_Silk_solve_LS_FIX.c \
-silk/fixed/SKP_Silk_warped_autocorrelation_FIX.c
+silk/fixed/silk_LTP_analysis_filter_FIX.c \
+silk/fixed/silk_LTP_scale_ctrl_FIX.c \
+silk/fixed/silk_corrMatrix_FIX.c \
+silk/fixed/silk_encode_frame_FIX.c \
+silk/fixed/silk_find_LPC_FIX.c \
+silk/fixed/silk_find_LTP_FIX.c \
+silk/fixed/silk_find_pitch_lags_FIX.c \
+silk/fixed/silk_find_pred_coefs_FIX.c \
+silk/fixed/silk_noise_shape_analysis_FIX.c \
+silk/fixed/silk_prefilter_FIX.c \
+silk/fixed/silk_process_gains_FIX.c \
+silk/fixed/silk_regularize_correlations_FIX.c \
+silk/fixed/silk_residual_energy16_FIX.c \
+silk/fixed/silk_residual_energy_FIX.c \
+silk/fixed/silk_solve_LS_FIX.c \
+silk/fixed/silk_warped_autocorrelation_FIX.c
 else
 SILK_SOURCES += \
-silk/float/SKP_Silk_apply_sine_window_FLP.c \
-silk/float/SKP_Silk_corrMatrix_FLP.c \
-silk/float/SKP_Silk_encode_frame_FLP.c \
-silk/float/SKP_Silk_find_LPC_FLP.c \
-silk/float/SKP_Silk_find_LTP_FLP.c \
-silk/float/SKP_Silk_find_pitch_lags_FLP.c \
-silk/float/SKP_Silk_find_pred_coefs_FLP.c \
-silk/float/SKP_Silk_LPC_analysis_filter_FLP.c \
-silk/float/SKP_Silk_LTP_analysis_filter_FLP.c \
-silk/float/SKP_Silk_LTP_scale_ctrl_FLP.c \
-silk/float/SKP_Silk_noise_shape_analysis_FLP.c \
-silk/float/SKP_Silk_prefilter_FLP.c \
-silk/float/SKP_Silk_process_gains_FLP.c \
-silk/float/SKP_Silk_regularize_correlations_FLP.c \
-silk/float/SKP_Silk_residual_energy_FLP.c \
-silk/float/SKP_Silk_solve_LS_FLP.c \
-silk/float/SKP_Silk_warped_autocorrelation_FLP.c \
-silk/float/SKP_Silk_wrappers_FLP.c \
-silk/float/SKP_Silk_autocorrelation_FLP.c \
-silk/float/SKP_Silk_burg_modified_FLP.c \
-silk/float/SKP_Silk_bwexpander_FLP.c \
-silk/float/SKP_Silk_energy_FLP.c \
-silk/float/SKP_Silk_inner_product_FLP.c \
-silk/float/SKP_Silk_k2a_FLP.c \
-silk/float/SKP_Silk_levinsondurbin_FLP.c \
-silk/float/SKP_Silk_LPC_inv_pred_gain_FLP.c \
-silk/float/SKP_Silk_pitch_analysis_core_FLP.c \
-silk/float/SKP_Silk_scale_copy_vector_FLP.c \
-silk/float/SKP_Silk_scale_vector_FLP.c \
-silk/float/SKP_Silk_schur_FLP.c \
-silk/float/SKP_Silk_sort_FLP.c
+silk/float/silk_apply_sine_window_FLP.c \
+silk/float/silk_corrMatrix_FLP.c \
+silk/float/silk_encode_frame_FLP.c \
+silk/float/silk_find_LPC_FLP.c \
+silk/float/silk_find_LTP_FLP.c \
+silk/float/silk_find_pitch_lags_FLP.c \
+silk/float/silk_find_pred_coefs_FLP.c \
+silk/float/silk_LPC_analysis_filter_FLP.c \
+silk/float/silk_LTP_analysis_filter_FLP.c \
+silk/float/silk_LTP_scale_ctrl_FLP.c \
+silk/float/silk_noise_shape_analysis_FLP.c \
+silk/float/silk_prefilter_FLP.c \
+silk/float/silk_process_gains_FLP.c \
+silk/float/silk_regularize_correlations_FLP.c \
+silk/float/silk_residual_energy_FLP.c \
+silk/float/silk_solve_LS_FLP.c \
+silk/float/silk_warped_autocorrelation_FLP.c \
+silk/float/silk_wrappers_FLP.c \
+silk/float/silk_autocorrelation_FLP.c \
+silk/float/silk_burg_modified_FLP.c \
+silk/float/silk_bwexpander_FLP.c \
+silk/float/silk_energy_FLP.c \
+silk/float/silk_inner_product_FLP.c \
+silk/float/silk_k2a_FLP.c \
+silk/float/silk_levinsondurbin_FLP.c \
+silk/float/silk_LPC_inv_pred_gain_FLP.c \
+silk/float/silk_pitch_analysis_core_FLP.c \
+silk/float/silk_scale_copy_vector_FLP.c \
+silk/float/silk_scale_vector_FLP.c \
+silk/float/silk_schur_FLP.c \
+silk/float/silk_sort_FLP.c
 endif
diff --git a/src/opus.h b/src/opus.h
index 91048503..37c1129e 100644
--- a/src/opus.h
+++ b/src/opus.h
@@ -132,6 +132,11 @@ extern "C" {
 #define OPUS_GET_VBR_CONSTRAINT_REQUEST 21
 #define OPUS_GET_VBR_CONSTRAINT(x) OPUS_GET_VBR_CONSTRAINT_REQUEST, __check_int_ptr(x)
 
+#define OPUS_SET_FORCE_MONO_REQUEST 22
+#define OPUS_SET_FORCE_MONO(x) OPUS_SET_FORCE_MONO_REQUEST, __check_int(x)
+#define OPUS_GET_FORCE_MONO_REQUEST 23
+#define OPUS_GET_FORCE_MONO(x) OPUS_GET_FORCE_MONO_REQUEST, __check_int_ptr(x)
+
 typedef struct OpusEncoder OpusEncoder;
 typedef struct OpusDecoder OpusDecoder;
 
diff --git a/src/opus.vcxproj b/src/opus.vcxproj
index fddd0e46..5ae2988a 100644
--- a/src/opus.vcxproj
+++ b/src/opus.vcxproj
@@ -85,7 +85,7 @@
     <ClCompile Include="test_opus.c" />
   </ItemGroup>
   <ItemGroup>
-    <ClInclude Include="..\silk\interface\SKP_Silk_SDK_API.h" />
+    <ClInclude Include="..\silk\silk_API.h" />
     <ClInclude Include="..\win32\config.h" />
     <ClInclude Include="opus.h" />
     <ClInclude Include="opus_decoder.h" />
diff --git a/src/opus.vcxproj.filters b/src/opus.vcxproj.filters
index 13c93ee2..269fde85 100644
--- a/src/opus.vcxproj.filters
+++ b/src/opus.vcxproj.filters
@@ -35,10 +35,10 @@
     <ClInclude Include="opus.h">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="..\silk\interface\SKP_Silk_SDK_API.h">
+    <ClInclude Include="..\win32\config.h">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="..\win32\config.h">
+    <ClInclude Include="..\silk\silk_API.h">
       <Filter>Header Files</Filter>
     </ClInclude>
   </ItemGroup>
diff --git a/src/opus_decoder.c b/src/opus_decoder.c
index 6c07517c..c47517cf 100644
--- a/src/opus_decoder.c
+++ b/src/opus_decoder.c
@@ -37,7 +37,7 @@
 #include "opus_decoder.h"
 #include "entdec.h"
 #include "modes.h"
-#include "SKP_Silk_SDK_API.h"
+#include "silk_API.h"
 
 #define MAX_PACKET (1275)
 
@@ -52,7 +52,7 @@ int opus_decoder_get_size(int channels)
 {
 	int silkDecSizeBytes, celtDecSizeBytes;
 	int ret;
-    ret = SKP_Silk_SDK_Get_Decoder_Size( &silkDecSizeBytes );
+    ret = silk_Get_Decoder_Size( &silkDecSizeBytes );
 	if(ret)
 		return 0;
 	silkDecSizeBytes = align(silkDecSizeBytes);
@@ -69,7 +69,7 @@ OpusDecoder *opus_decoder_init(OpusDecoder *st, int Fs, int channels)
 
 	memset(st, 0, sizeof(OpusDecoder));
 	/* Initialize SILK encoder */
-    ret = SKP_Silk_SDK_Get_Decoder_Size( &silkDecSizeBytes );
+    ret = silk_Get_Decoder_Size( &silkDecSizeBytes );
     if( ret ) {
         return NULL;
     }
@@ -84,7 +84,7 @@ OpusDecoder *opus_decoder_init(OpusDecoder *st, int Fs, int channels)
     st->Fs = Fs;
 
     /* Reset decoder */
-    ret = SKP_Silk_SDK_InitDecoder( silk_dec );
+    ret = silk_InitDecoder( silk_dec );
     if( ret ) {
         goto failure;
     }
@@ -149,7 +149,7 @@ static int opus_decode_frame(OpusDecoder *st, const unsigned char *data,
 	CELTDecoder *celt_dec;
 	int i, silk_ret=0, celt_ret=0;
 	ec_dec dec;
-    SKP_SILK_SDK_DecControlStruct DecControl;
+    silk_DecControlStruct DecControl;
     SKP_int32 silk_frame_size;
     short pcm_celt[960*2];
     short pcm_transition[960*2];
@@ -183,9 +183,6 @@ static int opus_decode_frame(OpusDecoder *st, const unsigned char *data,
         mode = st->prev_mode;
     }
 
-    if (st->stream_channels > st->channels)
-        return OPUS_CORRUPTED_DATA;
-
     if (data!=NULL && !st->prev_redundancy && mode != st->prev_mode && st->prev_mode > 0
     		&& !(mode == MODE_SILK_ONLY && st->prev_mode == MODE_HYBRID)
     		&& !(mode == MODE_HYBRID && st->prev_mode == MODE_SILK_ONLY))
@@ -209,9 +206,11 @@ static int opus_decode_frame(OpusDecoder *st, const unsigned char *data,
         SKP_int16 *pcm_ptr = pcm;
 
         if (st->prev_mode==MODE_CELT_ONLY)
-        	SKP_Silk_SDK_InitDecoder( silk_dec );
+        	silk_InitDecoder( silk_dec );
 
         DecControl.API_sampleRate = st->Fs;
+        DecControl.nChannelsAPI      = st->channels;
+        DecControl.nChannelsInternal = st->stream_channels;
         DecControl.payloadSize_ms = 1000 * audiosize / st->Fs;
         if( mode == MODE_SILK_ONLY ) {
             if( st->bandwidth == BANDWIDTH_NARROWBAND ) {
@@ -228,14 +227,13 @@ static int opus_decode_frame(OpusDecoder *st, const unsigned char *data,
             /* Hybrid mode */
             DecControl.internalSampleRate = 16000;
         }
-        DecControl.nChannels = st->channels;
 
         lost_flag = data == NULL ? 1 : 2 * decode_fec;
         decoded_samples = 0;
         do {
             /* Call SILK decoder */
             int first_frame = decoded_samples == 0;
-            silk_ret = SKP_Silk_SDK_Decode( silk_dec, &DecControl,
+            silk_ret = silk_Decode( silk_dec, &DecControl, 
                 lost_flag, first_frame, &dec, pcm_ptr, &silk_frame_size );
             if( silk_ret ) {
                 fprintf (stderr, "SILK decode error\n");
@@ -318,10 +316,9 @@ static int opus_decode_frame(OpusDecoder *st, const unsigned char *data,
         /* Decode CELT */
         celt_ret = celt_decode_with_ec(celt_dec, decode_fec?NULL:data, len, pcm_celt, frame_size, &dec);
         for (i=0;i<frame_size*st->channels;i++)
-            pcm[i] = ADD_SAT16(pcm[i], pcm_celt[i]);
+            pcm[i] = SAT16(pcm[i] + (int)pcm_celt[i]);
     }
 
-
     {
         const CELTMode *celt_mode;
         celt_decoder_ctl(celt_dec, CELT_GET_MODE(&celt_mode));
diff --git a/src/opus_decoder.h b/src/opus_decoder.h
index c221210f..b198d823 100644
--- a/src/opus_decoder.h
+++ b/src/opus_decoder.h
@@ -50,9 +50,8 @@ struct OpusDecoder {
 #endif
 };
 
-inline short ADD_SAT16(short a, short b) {
-    int sum = a + b;
-    return sum > 32767 ? 32767 : sum < -32768 ? -32768 : (short)sum;
+inline short SAT16(int x) {
+    return x > 32767 ? 32767 : x < -32768 ? -32768 : (short)x;
 };
 
 #endif /* OPUS_DECODER_H */
diff --git a/src/opus_encoder.c b/src/opus_encoder.c
index 33e568d2..4bc49501 100644
--- a/src/opus_encoder.c
+++ b/src/opus_encoder.c
@@ -37,14 +37,14 @@
 #include "opus_encoder.h"
 #include "entenc.h"
 #include "modes.h"
-#include "SKP_Silk_SDK_API.h"
+#include "silk_API.h"
 
 /* Transition tables for the voice and audio modes. First column is the
    middle (memoriless) threshold. The second column is the hysteresis
    (difference with the middle) */
 static const int voice_bandwidth_thresholds[10] = {
-		11500, 1500, /* NB<->MB */
-		14500, 1500, /* MB<->WB */
+		11000, 1000, /* NB<->MB */
+		14000, 1000, /* MB<->WB */
 		21000, 2000, /* WB<->SWB */
 		29000, 2000, /* SWB<->FB */
 };
@@ -66,7 +66,7 @@ int opus_encoder_get_size(int channels)
 {
 	int silkEncSizeBytes, celtEncSizeBytes;
 	int ret;
-	ret = SKP_Silk_SDK_Get_Encoder_Size( &silkEncSizeBytes );
+	ret = silk_Get_Encoder_Size( &silkEncSizeBytes );
 	if(ret)
 		return 0;
 	silkEncSizeBytes = align(silkEncSizeBytes);
@@ -84,7 +84,7 @@ OpusEncoder *opus_encoder_init(OpusEncoder* st, int Fs, int channels)
 
 	memset(st, 0, sizeof(OpusEncoder));
     /* Create SILK encoder */
-    ret = SKP_Silk_SDK_Get_Encoder_Size( &silkEncSizeBytes );
+    ret = silk_Get_Encoder_Size( &silkEncSizeBytes );
     if( ret )
     	return NULL;
 	silkEncSizeBytes = align(silkEncSizeBytes);
@@ -98,20 +98,26 @@ OpusEncoder *opus_encoder_init(OpusEncoder* st, int Fs, int channels)
 
     st->Fs = Fs;
 
-    ret = SKP_Silk_SDK_InitEncoder( silk_enc, &st->silk_mode );
+    ret = silk_InitEncoder( silk_enc, &st->silk_mode );
     if( ret )
         goto failure;
 
     /* default SILK parameters */
-    st->silk_mode.API_sampleRate        = st->Fs;
-    st->silk_mode.nChannels             = channels;
-    st->silk_mode.maxInternalSampleRate = 16000;
-    st->silk_mode.minInternalSampleRate = 8000;
-    st->silk_mode.payloadSize_ms        = 20;
-    st->silk_mode.packetLossPercentage  = 0;
-    st->silk_mode.useInBandFEC          = 0;
-    st->silk_mode.useDTX                = 0;
-    st->silk_mode.complexity            = 10;
+    st->silk_mode.nChannelsAPI              = channels;
+    st->silk_mode.nChannelsInternal         = channels;
+    st->silk_mode.API_sampleRate            = st->Fs;
+    st->silk_mode.maxInternalSampleRate     = 16000;
+    st->silk_mode.minInternalSampleRate     = 8000;
+    st->silk_mode.desiredInternalSampleRate = 16000;
+    st->silk_mode.payloadSize_ms            = 20;
+    st->silk_mode.bitRate                   = 25000;
+    st->silk_mode.packetLossPercentage      = 0;
+    st->silk_mode.complexity                = 10;
+    st->silk_mode.useInBandFEC              = 0;
+    st->silk_mode.useDTX                    = 0;
+    st->silk_mode.useCBR                    = 0;
+
+    st->hybrid_stereo_width_Q14             = 1 << 14;
 
     /* Create CELT encoder */
 	/* Initialize CELT encoder */
@@ -142,7 +148,7 @@ failure:
 
 OpusEncoder *opus_encoder_create(int Fs, int channels)
 {
-    char *raw_state = malloc(opus_encoder_get_size(channels));
+    char *raw_state = (char *)malloc(opus_encoder_get_size(channels));
     if (raw_state == NULL)
     	return NULL;
     return opus_encoder_init((OpusEncoder*)raw_state, Fs, channels);
@@ -166,8 +172,8 @@ int opus_encode(OpusEncoder *st, const short *pcm, int frame_size,
     int redundancy_bytes = 0;
     int celt_to_silk = 0;
     /* TODO: This is 60 only so we can handle 60ms speech/audio switching 
-       it shouldn't bee too hard to reduce to 20 ms if needed */
-    short pcm_buf[3*960*2];
+       it shouldn't be too hard to reduce to 20 ms if needed */
+    short pcm_buf[60*48*2];
     int nb_compr_bytes;
     int to_celt = 0;
     celt_int32 mono_rate;
@@ -180,8 +186,10 @@ int opus_encode(OpusEncoder *st, const short *pcm, int frame_size,
     else
         st->bitrate_bps = st->user_bitrate_bps;
 
-    /* Rete-dependent mono-stereo decision */
-    if (st->channels == 2)
+    /* Rate-dependent mono-stereo decision */
+    if (st->force_mono)
+        st->stream_channels = 1;
+    if (st->mode == MODE_CELT_ONLY && st->channels == 2)
     {
         celt_int32 decision_rate;
         decision_rate = st->bitrate_bps + st->voice_ratio*st->voice_ratio;
@@ -195,7 +203,7 @@ int opus_encode(OpusEncoder *st, const short *pcm, int frame_size,
         else
             st->stream_channels = 1;
     } else {
-        st->stream_channels = 1;
+            st->stream_channels = st->channels;
     }
     /* Equivalent bit-rate for mono */
     mono_rate = st->bitrate_bps;
@@ -286,13 +294,13 @@ int opus_encode(OpusEncoder *st, const short *pcm, int frame_size,
 	data += 1;
 	if (st->mode != MODE_CELT_ONLY && st->prev_mode == MODE_CELT_ONLY)
 	{
-		SKP_SILK_SDK_EncControlStruct dummy;
-		SKP_Silk_SDK_InitEncoder( silk_enc, &dummy);
+		silk_EncControlStruct dummy;
+		silk_InitEncoder( silk_enc, &dummy);
 		prefill=1;
 	}
-	if (st->prev_mode >0 &&
-	        ((st->mode != MODE_CELT_ONLY && st->prev_mode == MODE_CELT_ONLY)
-	        || (st->mode == MODE_CELT_ONLY && st->prev_mode != MODE_CELT_ONLY)))
+	if (st->prev_mode > 0 &&
+	       ((st->mode != MODE_CELT_ONLY && st->prev_mode == MODE_CELT_ONLY) ||
+	        (st->mode == MODE_CELT_ONLY && st->prev_mode != MODE_CELT_ONLY)))
 	{
 	    redundancy = 1;
 	    celt_to_silk = (st->mode != MODE_CELT_ONLY);
@@ -316,6 +324,7 @@ int opus_encode(OpusEncoder *st, const short *pcm, int frame_size,
     {
         st->silk_mode.bitRate = st->bitrate_bps - 8*st->Fs/frame_size;
         if( st->mode == MODE_HYBRID ) {
+            st->silk_mode.bitRate /= st->stream_channels;
             if( st->bandwidth == BANDWIDTH_SUPERWIDEBAND ) {
                 if( st->Fs == 100 * frame_size ) {
                     /* 24 kHz, 10 ms */
@@ -333,6 +342,7 @@ int opus_encode(OpusEncoder *st, const short *pcm, int frame_size,
                     st->silk_mode.bitRate = ( st->silk_mode.bitRate + 9000 + st->use_vbr * 1000 ) / 2;
                 }
             }
+            st->silk_mode.bitRate *= st->stream_channels;
             /* don't let SILK use more than 80% */
             if( st->silk_mode.bitRate > ( st->bitrate_bps - 8*st->Fs/frame_size ) * 4/5 ) {
                 st->silk_mode.bitRate = ( st->bitrate_bps - 8*st->Fs/frame_size ) * 4/5;
@@ -340,6 +350,8 @@ int opus_encode(OpusEncoder *st, const short *pcm, int frame_size,
         }
 
         st->silk_mode.payloadSize_ms = 1000 * frame_size / st->Fs;
+        st->silk_mode.nChannelsAPI = st->channels;
+        st->silk_mode.nChannelsInternal = st->stream_channels;
         if (st->bandwidth == BANDWIDTH_NARROWBAND) {
         	st->silk_mode.desiredInternalSampleRate = 8000;
         } else if (st->bandwidth == BANDWIDTH_MEDIUMBAND) {
@@ -361,10 +373,10 @@ int opus_encode(OpusEncoder *st, const short *pcm, int frame_size,
         if (prefill)
         {
             int zero=0;
-        	SKP_Silk_SDK_Encode( silk_enc, &st->silk_mode, st->delay_buffer, st->encoder_buffer, NULL, &zero, 1 );
+        	silk_Encode( silk_enc, &st->silk_mode, st->delay_buffer, st->encoder_buffer, NULL, &zero, 1 );
         }
 
-        ret = SKP_Silk_SDK_Encode( silk_enc, &st->silk_mode, pcm, frame_size, &enc, &nBytes, 0 );
+        ret = silk_Encode( silk_enc, &st->silk_mode, pcm, frame_size, &enc, &nBytes, 0 );
         if( ret ) {
             fprintf (stderr, "SILK encode error: %d\n", ret);
             /* Handle error */
@@ -455,6 +467,31 @@ int opus_encode(OpusEncoder *st, const short *pcm, int frame_size,
         pcm_buf[i] = st->delay_buffer[(st->encoder_buffer-st->delay_compensation)*st->channels+i];
     for (;i<frame_size*st->channels;i++)
         pcm_buf[i] = pcm[i-st->delay_compensation*st->channels];
+
+    if( st->mode == MODE_HYBRID && st->stream_channels == 2 ) {
+        /* Apply stereo width reduction (at low bitrates) */
+        if( st->hybrid_stereo_width_Q14 < (1 << 14) || st->silk_mode.stereoWidth_Q14 < (1 << 14) ) {
+            int width_Q14, delta_Q14, nSamples_8ms, diff;
+            nSamples_8ms = ( st->Fs * 8 ) / 1000;
+            width_Q14 = (1 << 14 ) - st->hybrid_stereo_width_Q14;
+            delta_Q14 = ( st->hybrid_stereo_width_Q14 - st->silk_mode.stereoWidth_Q14 ) / nSamples_8ms;
+            for( i = 0; i < nSamples_8ms; i++ ) {
+                width_Q14 += delta_Q14;
+                diff = pcm_buf[ 2*i+1 ] - (int)pcm_buf[ 2*i ];
+                diff = ( diff * width_Q14 ) >> 15;
+                pcm_buf[ 2*i ]   = (short)( pcm_buf[ 2*i ]   + diff );
+                pcm_buf[ 2*i+1 ] = (short)( pcm_buf[ 2*i+1 ] - diff );
+            }
+            for( ; i < frame_size; i++ ) {
+                diff = pcm_buf[ 2*i+1 ] - (int)pcm_buf[ 2*i ];
+                diff = ( diff * width_Q14 ) >> 15;
+                pcm_buf[ 2*i ]   = (short)( pcm_buf[ 2*i ]   + diff );
+                pcm_buf[ 2*i+1 ] = (short)( pcm_buf[ 2*i+1 ] - diff );
+            }
+            st->hybrid_stereo_width_Q14 = st->silk_mode.stereoWidth_Q14;
+        }
+    }
+
     if (st->mode != MODE_CELT_ONLY)
     {
         /* Check if we have a redundant 0-8 kHz band */
@@ -606,6 +643,18 @@ int opus_encoder_ctl(OpusEncoder *st, int request, ...)
             *value = st->bitrate_bps;
         }
         break;
+        case OPUS_SET_FORCE_MONO_REQUEST:
+        {
+            int value = va_arg(ap, int);
+            st->force_mono = value;
+        }
+        break;
+        case OPUS_GET_FORCE_MONO_REQUEST:
+        {
+            int *value = va_arg(ap, int*);
+            *value = !!st->force_mono;
+        }
+        break;
         case OPUS_SET_BANDWIDTH_REQUEST:
         {
             int value = va_arg(ap, int);
diff --git a/src/opus_encoder.h b/src/opus_encoder.h
index 4d74c25f..ca1e28ae 100644
--- a/src/opus_encoder.h
+++ b/src/opus_encoder.h
@@ -30,24 +30,26 @@
 
 #include "celt.h"
 #include "opus.h"
-#include "SKP_Silk_SDK_API.h"
+#include "silk_API.h"
 
 /* FIXME: This is only valid for 48 kHz */
 #define MAX_ENCODER_BUFFER 480
 
 struct OpusEncoder {
-	int          celt_enc_offset;
-	int          silk_enc_offset;
-	SKP_SILK_SDK_EncControlStruct silk_mode;
-	int          channels;
-	int          stream_channels;
+    int          celt_enc_offset;
+    int          silk_enc_offset;
+    silk_EncControlStruct silk_mode;
+    int          hybrid_stereo_width_Q14;
+    int          channels;
+    int          stream_channels;
 
     int          mode;
     int          user_mode;
+    int          force_mono;
     int          prev_mode;
-	int          bandwidth;
-	int          user_bandwidth;
-	int          voice_ratio;
+    int          bandwidth;
+    int          user_bandwidth;
+    int          voice_ratio;
     /* Sampling rate (at the API level) */
     int          Fs;
     int          use_vbr;
diff --git a/src/test_opus.c b/src/test_opus.c
index acd61b09..1461716b 100644
--- a/src/test_opus.c
+++ b/src/test_opus.c
@@ -35,7 +35,7 @@
 #include <math.h>
 #include <string.h>
 #include "opus.h"
-#include "SKP_debug.h"
+#include "silk_debug.h"
 
 
 #define MAX_PACKET 1500
@@ -52,6 +52,7 @@ void print_usage( char* argv[] )
     fprintf(stderr, "-max_payload <bytes> : maximum payload size in bytes, default: 1024\n" );
     fprintf(stderr, "-complexity <comp>   : complexity, 0 (lowest) ... 10 (highest); default: 10\n" );
     fprintf(stderr, "-inbandfec           : enable SILK inband FEC\n" );
+    fprintf(stderr, "-forcemono           : force mono encoding, even for stereo input\n" );
     fprintf(stderr, "-dtx                 : enable SILK DTX\n" );
     fprintf(stderr, "-loss <perc>         : simulate packet loss, in percent (0-100); default: 0\n" );
 }
@@ -82,6 +83,7 @@ int main(int argc, char *argv[])
    int complexity;
    int use_inbandfec;
    int use_dtx;
+   int forcemono;
    int cvbr = 0;
    int packet_loss_perc;
    int count=0, count_act=0, k;
@@ -125,6 +127,7 @@ int main(int argc, char *argv[])
    max_payload_bytes = MAX_PACKET;
    complexity = 10;
    use_inbandfec = 0;
+   forcemono = 0;
    use_dtx = 0;
    packet_loss_perc = 0;
 
@@ -177,6 +180,9 @@ int main(int argc, char *argv[])
         } else if( STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-inbandfec" ) == 0 ) {
             use_inbandfec = 1;
             args++;
+        } else if( STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-forcemono" ) == 0 ) {
+            forcemono = 1;
+            args++;
         } else if( STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-cvbr" ) == 0 ) {
             cvbr = 1;
             args++;
@@ -236,6 +242,7 @@ int main(int argc, char *argv[])
    opus_encoder_ctl(enc, OPUS_SET_VBR_CONSTRAINT(cvbr));
    opus_encoder_ctl(enc, OPUS_SET_COMPLEXITY(complexity));
    opus_encoder_ctl(enc, OPUS_SET_INBAND_FEC_FLAG(use_inbandfec));
+   opus_encoder_ctl(enc, OPUS_SET_FORCE_MONO(forcemono));
    opus_encoder_ctl(enc, OPUS_SET_DTX_FLAG(use_dtx));
    opus_encoder_ctl(enc, OPUS_SET_PACKET_LOSS_PERC(packet_loss_perc));
 
@@ -326,7 +333,7 @@ int main(int argc, char *argv[])
 #if OPUS_TEST_RANGE_CODER_STATE
       /* compare final range encoder rng values of encoder and decoder */
       if( !lost && !lost_prev && opus_decoder_get_final_range( dec ) != enc_final_range[toggle^use_inbandfec] ) {
-          fprintf (stderr, "Error: Range coder state mismatch between encoder and decoder.\n");
+          fprintf (stderr, "Error: Range coder state mismatch between encoder and decoder in frame %d.\n", count);
           return 0;
       }
 #endif
@@ -354,8 +361,8 @@ int main(int argc, char *argv[])
    fprintf (stderr, "active bitrate:              %7.3f kb/s\n", 1e-3*bits_act*sampling_rate/(frame_size*(double)count_act));
    fprintf (stderr, "bitrate standard deviation:  %7.3f kb/s\n", 1e-3*sqrt(bits2/count - bits*bits/(count*(double)count))*sampling_rate/frame_size);
    /* Close any files to which intermediate results were stored */
-   DEBUG_STORE_CLOSE_FILES
-   SKP_TimerSave("opus_timing.txt");
+   SILK_DEBUG_STORE_CLOSE_FILES
+   silk_TimerSave("opus_timing.txt");
    opus_encoder_destroy(enc);
    opus_decoder_destroy(dec);
    free(data[0]);