recipes-multimedia/hts_engine/hts-engine/nomalize.patch

   1 diff --git a/lib/HTS_engine.c b/lib/HTS_engine.c
   2 old mode 100644
   3 new mode 100755
   4 index 5325426..b507226
   5 --- a/lib/HTS_engine.c
   6 +++ b/lib/HTS_engine.c
   7 @@ -733,6 +733,9 @@ void HTS_Engine_save_riff(HTS_Engine * engine, FILE * fp)
   8     HTS_fwrite_little_endian(data_37_40, sizeof(char), 4, fp);
   9     HTS_fwrite_little_endian(&data_41_44, sizeof(int), 1, fp);
  10     /* write data */
  11 +
  12 +   short peak = 0;
  13 +
  14     for (i = 0; i < HTS_GStreamSet_get_total_nsamples(gss); i++) {
  15        x = HTS_GStreamSet_get_speech(gss, i);
  16        if (x > 32767.0)
  17 @@ -741,6 +744,14 @@ void HTS_Engine_save_riff(HTS_Engine * engine, FILE * fp)
  18           temp = -32768;
  19        else
  20           temp = (short) x;
  21 +      short sample = abs(temp);
  22 +      if(peak < sample)
  23 +         peak = sample;
  24 +   }
  25 +   float mul = (32767.0f / peak);
  26 +   for (i = 0; i < HTS_GStreamSet_get_total_nsamples(gss); i++) {
  27 +      x = HTS_GStreamSet_get_speech(gss, i);
  28 +      temp = ((short) x) * mul;
  29        HTS_fwrite_little_endian(&temp, sizeof(short), 1, fp);
  30     }
  31  }