shithub: opus

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Add no-blending version

--- a/dnn/lpcnet_plc.c

+++ b/dnn/lpcnet_plc.c

@@ -44,6 +44,7 @@

   st->skip_analysis = 0;

   st->blend = 0;

   st->loss_count = 0;

+  st->enable_blending = 1;

 }

 LPCNET_EXPORT LPCNetPLCState *lpcnet_plc_create() {

@@ -87,11 +88,16 @@

       RNN_COPY(zeros, plc_features, 2*NB_BANDS);

       zeros[2*NB_BANDS+NB_FEATURES] = 1;

       compute_plc_pred(&st->plc_net, st->features, zeros);

-      lpcnet_synthesize_impl(&st->lpcnet, &st->features[0], tmp, FRAME_SIZE-TRAINING_OFFSET, 0);

-      for (i=0;i<FRAME_SIZE-TRAINING_OFFSET;i++) {

-        float w;

-        w = .5 - .5*cos(M_PI*i/(FRAME_SIZE-TRAINING_OFFSET));

-        pcm[i] = (int)floor(.5 + w*pcm[i] + (1-w)*tmp[i]);

+      if (st->enable_blending) {

+        lpcnet_synthesize_impl(&st->lpcnet, &st->features[0], tmp, FRAME_SIZE-TRAINING_OFFSET, 0);

+        for (i=0;i<FRAME_SIZE-TRAINING_OFFSET;i++) {

+          float w;

+          w = .5 - .5*cos(M_PI*i/(FRAME_SIZE-TRAINING_OFFSET));

+          pcm[i] = (int)floor(.5 + w*pcm[i] + (1-w)*tmp[i]);

+        }

+      } else {

+        RNN_COPY(tmp, pcm, FRAME_SIZE-TRAINING_OFFSET);

+        lpcnet_synthesize_tail_impl(&st->lpcnet, tmp, FRAME_SIZE-TRAINING_OFFSET, FRAME_SIZE-TRAINING_OFFSET);

       }

       st->blend = 0;

       RNN_COPY(st->pcm, &pcm[FRAME_SIZE-TRAINING_OFFSET], TRAINING_OFFSET);

--- a/dnn/lpcnet_private.h

+++ b/dnn/lpcnet_private.h

@@ -78,6 +78,7 @@

   float features[NB_TOTAL_FEATURES];

   int loss_count;

   PLCNetState plc_net;

+  int enable_blending;

 };

 extern float ceps_codebook1[];

-- 

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