shithub: opus

Download patch

ref: 86bf0cb9d53a8218dddc4497390c884b0eb582b6
parent: cb4dbe05d0d9ab8f67f3363ea38d1c60210f7d0f
author: Jean-Marc Valin <jmvalin@amazon.com>
date: Tue Feb 15 22:44:02 EST 2022 

Remove pitch periodicity attenuation


--- a/dnn/lpcnet_plc.c
+++ b/dnn/lpcnet_plc.c
@@ -186,7 +186,7 @@
   compute_plc_pred(&st->plc_net, st->features, zeros);
   if (st->loss_count >= 10) st->features[0] = MAX16(-10, st->features[0]+att_table[9] - 2*(st->loss_count-9));
   else st->features[0] = MAX16(-10, st->features[0]+att_table[st->loss_count]);
-  if (st->loss_count > 4) st->features[NB_FEATURES-1] = MAX16(-.5, st->features[NB_FEATURES-1]-.1*(st->loss_count-4));
+  //if (st->loss_count > 4) st->features[NB_FEATURES-1] = MAX16(-.5, st->features[NB_FEATURES-1]-.1*(st->loss_count-4));
   lpcnet_synthesize_impl(&st->lpcnet, &st->features[0], &pcm[FRAME_SIZE-TRAINING_OFFSET], TRAINING_OFFSET, 0);
   {
     int i;
@@ -295,7 +295,7 @@
   compute_plc_pred(&st->plc_net, st->features, zeros);
   if (st->loss_count >= 10) st->features[0] = MAX16(-10, st->features[0]+att_table[9] - 2*(st->loss_count-9));
   else st->features[0] = MAX16(-10, st->features[0]+att_table[st->loss_count]);
-  if (st->loss_count > 4) st->features[NB_FEATURES-1] = MAX16(-.5, st->features[NB_FEATURES-1]-.1*(st->loss_count-4));
+  //if (st->loss_count > 4) st->features[NB_FEATURES-1] = MAX16(-.5, st->features[NB_FEATURES-1]-.1*(st->loss_count-4));
 
   if (st->loss_count == 0) {
     RNN_COPY(pcm, &st->pcm[FRAME_SIZE-TRAINING_OFFSET], TRAINING_OFFSET);
-- 
⑨