Changeset bc4ba75

Timestamp:

Sep 12, 2007, 7:36:11 PM (17 years ago)

Author:

Amaury Hazan <mahmoudax@gmail.org>

Branches:

feature/autosink, feature/cnn, feature/cnn_org, feature/constantq, feature/crepe, feature/crepe_org, feature/pitchshift, feature/pydocstrings, feature/timestretch, fix/ffmpeg5, master, pitchshift, sampler, timestretch, yinfft+

Children:

e5f6a0b

Parents:

95a64c7

Message:

added mfcc binding

Files:

• examples/utils.c (modified) (1 diff)
• src/filterbank.c (modified) (1 diff)
• swig/aubio.i (modified) (1 diff)

examples/utils.c

@@ -44 +44 @@
 uint_t buffer_size                    = 1024;
 uint_t overlap_size                   = 512;
+// uint_t buffer_size                    = 2048;
+// uint_t overlap_size                   = 1024;
 uint_t channels                       = 1;
 uint_t samplerate                     = 44100;

src/filterbank.c

@@ -225 +225 @@
   for(filter_cnt=0; filter_cnt<allFilters; filter_cnt++)
     AUBIO_DBG("filter n. %d %f %f %f %f\n",filter_cnt, lower_freqs->data[0][filter_cnt], center_freqs->data[0][filter_cnt], upper_freqs->data[0][filter_cnt], triangle_heights->data[0][filter_cnt]);
-  
-  
+
   //filling the fft_freqs lookup table, which assigns the frequency in hz to each bin
-  
   for(bin_cnt=0; bin_cnt<win_s; bin_cnt++){
-    
     //TODO: check the formula!
-    
     fft_freqs->data[0][bin_cnt]= (smpl_t)samplerate* (smpl_t)bin_cnt/ (smpl_t)win_s;
-
-  }
-  
-  
+  }
+
   //building each filter table
   for(filter_cnt=0; filter_cnt<allFilters; filter_cnt++){
 
     //TODO:check special case : lower freq =0
-    
     //calculating rise increment in mag/Hz
     smpl_t riseInc= triangle_heights->data[0][filter_cnt]/(center_freqs->data[0][filter_cnt]-lower_freqs->data[0][filter_cnt]);
     
+
+    AUBIO_DBG("\nfilter %d",filter_cnt);
     //zeroing begining of filter
-    AUBIO_DBG("\nfilter %d",filter_cnt);
-
     AUBIO_DBG("\nzero begin\n");
-    
     for(bin_cnt=0; bin_cnt<win_s-1; bin_cnt++){
       //zeroing beigining of array

swig/aubio.i

@@ -148 +148 @@
 smpl_t aubio_zero_crossing_rate(fvec_t * input);
 smpl_t aubio_spectral_centroid(cvec_t * spectrum, smpl_t samplerate);
+
+/* filterbank */
+
+/* mfcc */
+aubio_mfcc_t * new_aubio_mfcc (uint_t win_s, uint_t samplerate, uint_t n_filters, uint_t n_coefs, smpl_t lowfreq, smpl_t highfreq, uint_t channels);
+void del_aubio_mfcc(aubio_mfcc_t *mf);
+void aubio_mfcc_do(aubio_mfcc_t *mf, cvec_t *in, fvec_t *out);
+
 
 /* scale */