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Controlling training offset

--- a/dnn/dump_data.c

+++ b/dnn/dump_data.c

@@ -305,9 +305,9 @@

     compute_frame_features(st, X, P, Ex, Ep, Exp, features, x);

     fwrite(features, sizeof(float), NB_FEATURES, ffeat);

     /* PCM is delayed by 1/2 frame to make the features centered on the frames. */

-    for (i=0;i<FRAME_SIZE/2;i++) pcm[i+FRAME_SIZE/2] = float2short(x[i]);

+    for (i=0;i<FRAME_SIZE-TRAINING_OFFSET;i++) pcm[i+TRAINING_OFFSET] = float2short(x[i]);

     if (fpcm) fwrite(pcm, sizeof(short), FRAME_SIZE, fpcm);

-    for (i=0;i<FRAME_SIZE/2;i++) pcm[i] = float2short(x[i+FRAME_SIZE/2]);

+    for (i=0;i<TRAINING_OFFSET;i++) pcm[i] = float2short(x[i+FRAME_SIZE-TRAINING_OFFSET]);

     old_speech_gain = speech_gain;

     count++;

   }

--- a/dnn/freq.h

+++ b/dnn/freq.h

@@ -30,10 +30,13 @@

 #define FRAME_SIZE_5MS (2)

 #define OVERLAP_SIZE_5MS (2)

+#define TRAINING_OFFSET_5MS (1)

+

 #define WINDOW_SIZE_5MS (FRAME_SIZE_5MS + OVERLAP_SIZE_5MS)

 #define FRAME_SIZE (80*FRAME_SIZE_5MS)

 #define OVERLAP_SIZE (80*OVERLAP_SIZE_5MS)

+#define TRAINING_OFFSET (80*TRAINING_OFFSET_5MS)

 #define WINDOW_SIZE (FRAME_SIZE + OVERLAP_SIZE)

 #define FREQ_SIZE (WINDOW_SIZE/2 + 1)

-- 

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