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Add FWGAN to lpcnet_demo

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Jean-Marc Valin 2023-07-31 02:06:48 -04:00
parent e62fd5c5c9
commit bf5eb5bf8d
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GPG key ID: 531A52533318F00A
3 changed files with 29 additions and 0 deletions
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3
dnn/fwgan.c
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@ -109,6 +109,8 @@ void fwgan_cont(FWGANState *st, const float *pcm0, const float *features0)
compute_generic_dense(&model->fwc7_cont_fc_0, st->fwc7_state, cont_inputs, ACTIVATION_TANH);
/* FIXME: Do we need to handle initial features? How? */
st->cont_initialized = 1;
}
static void apply_gain(float *pcm, float c0, float *last_gain) {
@ -213,6 +215,7 @@ void fwgan_synthesize(FWGANState *st, float *pcm, const float *features)
float lpc_weight;
float fwgan_features[NB_FEATURES-1];
int i;
celt_assert(st->cont_initialized);
OPUS_COPY(fwgan_features, features, NB_FEATURES-2);
fwgan_features[NB_FEATURES-2] = features[NB_FEATURES-1]+.5;

1
dnn/fwgan.h
View file

@ -44,6 +44,7 @@
typedef struct {
FWGAN model;
int arch;
int cont_initialized;
double embed_phase;
float last_gain;
float last_lpc[LPC_ORDER];

25
dnn/lpcnet_demo.c
View file

@ -36,6 +36,7 @@
#include "lpcnet.h"
#include "freq.h"
#include "os_support.h"
#include "fwgan.h"
#ifdef USE_WEIGHTS_FILE
# if __unix__
@ -84,6 +85,7 @@ void free_blob(unsigned char *blob, int len) {
#define MODE_SYNTHESIS 3
#define MODE_PLC 4
#define MODE_ADDLPC 5
#define MODE_FWGAN_SYNTHESIS 6
void usage(void) {
fprintf(stderr, "usage: lpcnet_demo -features <input.pcm> <features.f32>\n");
@ -112,6 +114,7 @@ int main(int argc, char **argv) {
if (argc < 4) usage();
if (strcmp(argv[1], "-features") == 0) mode=MODE_FEATURES;
else if (strcmp(argv[1], "-synthesis") == 0) mode=MODE_SYNTHESIS;
else if (strcmp(argv[1], "-fwgan-synthesis") == 0) mode=MODE_FWGAN_SYNTHESIS;
else if (strcmp(argv[1], "-plc") == 0) {
mode=MODE_PLC;
plc_options = argv[2];
@ -184,6 +187,28 @@ int main(int argc, char **argv) {
fwrite(pcm, sizeof(pcm[0]), LPCNET_FRAME_SIZE, fout);
}
lpcnet_destroy(net);
} else if (mode == MODE_FWGAN_SYNTHESIS) {
FWGANState fwgan;
float zeros[320] = {0};
fwgan_init(&fwgan);
fwgan_cont(&fwgan, zeros, NULL);
#ifdef USE_WEIGHTS_FILE
fwgan_load_model(fwgan, data, len);
#endif
while (1) {
int i;
float in_features[NB_TOTAL_FEATURES];
float features[NB_FEATURES];
float fpcm[LPCNET_FRAME_SIZE];
opus_int16 pcm[LPCNET_FRAME_SIZE];
size_t ret;
ret = fread(in_features, sizeof(features[0]), NB_TOTAL_FEATURES, fin);
if (feof(fin) || ret != NB_TOTAL_FEATURES) break;
OPUS_COPY(features, in_features, NB_FEATURES);
fwgan_synthesize(&fwgan, fpcm, features);
for (i=0;i<LPCNET_FRAME_SIZE;i++) pcm[i] = (int)floor(.5 + MIN32(32767, MAX32(-32767, 32768.f*fpcm[i])));
fwrite(pcm, sizeof(pcm[0]), LPCNET_FRAME_SIZE, fout);
}
} else if (mode == MODE_PLC) {
opus_int16 pcm[FRAME_SIZE];
int count=0;