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Add lpcnet_compute_single_frame_features_float()

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This commit is contained in:
Jean-Marc Valin 2023-06-05 14:13:37 -04:00
parent 8e2b539338
commit d749351ae5
2 changed files with 26 additions and 4 deletions
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9
dnn/include/lpcnet.h
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@ -145,6 +145,15 @@ LPCNET_EXPORT int lpcnet_compute_features(LPCNetEncState *st, const short *pcm,
*/
LPCNET_EXPORT int lpcnet_compute_single_frame_features(LPCNetEncState *st, const short *pcm, float features[NB_TOTAL_FEATURES]);
/** Compute features on LPCNET_FRAME_SIZE speech samples (currently 160) and output features for one 10-ms frame.
* @param [in] st <tt>LPCNetDecState*</tt>: Encoder state
* @param [in] pcm <tt>float *</tt>: Input speech to be analyzed
* @param [out] features <tt>float[NB_TOTAL_FEATURES]</tt>: Four feature vectors
* @retval 0 Success
*/
LPCNET_EXPORT int lpcnet_compute_single_frame_features_float(LPCNetEncState *st, const float *pcm, float features[NB_TOTAL_FEATURES]);
/** Gets the size of an <code>LPCNetState</code> structure.
* @returns The size in bytes.
*/

21
dnn/lpcnet_enc.c
View file

@ -894,13 +894,26 @@ LPCNET_EXPORT int lpcnet_compute_features(LPCNetEncState *st, const short *pcm,
return 0;
}
int lpcnet_compute_single_frame_features(LPCNetEncState *st, const short *pcm, float features[NB_TOTAL_FEATURES]) {
int i;
float x[FRAME_SIZE];
for (i=0;i<FRAME_SIZE;i++) x[i] = pcm[i];
static int lpcnet_compute_single_frame_features_impl(LPCNetEncState *st, float *x, float features[NB_TOTAL_FEATURES]) {
preemphasis(x, &st->mem_preemph, x, PREEMPHASIS, FRAME_SIZE);
compute_frame_features(st, x);
process_single_frame(st, NULL);
RNN_COPY(features, &st->features[0][0], NB_TOTAL_FEATURES);
return 0;
}
int lpcnet_compute_single_frame_features(LPCNetEncState *st, const short *pcm, float features[NB_TOTAL_FEATURES]) {
int i;
float x[FRAME_SIZE];
for (i=0;i<FRAME_SIZE;i++) x[i] = pcm[i];
lpcnet_compute_single_frame_features_impl(st, x, features);
return 0;
}
int lpcnet_compute_single_frame_features_float(LPCNetEncState *st, const float *pcm, float features[NB_TOTAL_FEATURES]) {
int i;
float x[FRAME_SIZE];
for (i=0;i<FRAME_SIZE;i++) x[i] = pcm[i];
lpcnet_compute_single_frame_features_impl(st, x, features);
return 0;
}