sandbox:pitch change the default options

git-svn-id: https://svn.code.sf.net/p/kaldi/code/sandbox/pitch@3237 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8

src/feat/pitch-functions.h

@@ -58,18 +58,18 @@ struct PitchExtractionOptions {
   explicit PitchExtractionOptions() :
       samp_freq(16000),
       frame_shift_ms(10.0),
-      frame_length_ms(25.0),
+      frame_length_ms(20.0),
       preemph_coeff(0.97),
       min_f0(50),
       max_f0(400),
       soft_min_f0(10.0),
       penalty_factor(0.1),
-      lowpass_cutoff(1500),
+      lowpass_cutoff(1000),
       upsample_cutoff(2000),
       resample_freq(4000),
-      delta_pitch(0.01),
+      delta_pitch(0.005),
       nccf_ballast(0.625),
-      lowpass_filter_width(2),
+      lowpass_filter_width(1),
       upsample_filter_width(5) {}
   void Register(ParseOptions *po) {
     po->Register("sample-frequency", &samp_freq,
@@ -127,7 +127,7 @@ struct PostProcessOptions {
     pitch_scale(2.0),
     pov_scale(2.0),
     delta_pitch_scale(10.0),
-    delta_pitch_noise_stddev(0.01),
+    delta_pitch_noise_stddev(0.005),
     normalization_window_size(151),
     delta_window(2),
     pov_nonlinearity(1),