Changeset 17961b0

Timestamp:

Sep 17, 2007, 12:50:05 AM (17 years ago)

Author:

Paul Brossier <piem@piem.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:

914a8cc

Parents:

ff68b34

Message:

filterbank.{c,h}: add aubio_filterbank_get_channel function

Location:

src

Files:

• filterbank.c (modified) (3 diffs)
• filterbank.h (modified) (1 diff)

src/filterbank.c

@@ -23 +23 @@
 #include "sample.h"
 #include "filterbank.h"
+#include "mathutils.h"
 
 #include "stdio.h"
@@ -125 +126 @@
   //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;
+    fft_freqs->data[0][bin_cnt]= aubio_bintofreq(bin_cnt, samplerate, win_s);
   }
 
@@ -215 +215 @@
   return;
 }
+
+fvec_t * aubio_filterbank_getchannel(aubio_filterbank_t * f, uint_t channel) {
+  if ( (channel >= 0) && (channel < f->n_filters) ) { return f->filters[channel]; }
+  else { return NULL; }
+}

src/filterbank.h

@@ -68 +68 @@
 void aubio_filterbank_do(aubio_filterbank_t * fb, cvec_t * in, fvec_t *out);
 
+/** return the vector containing the filter coefficients of one channel
+
+ */
+fvec_t * aubio_filterbank_getchannel(aubio_filterbank_t * f, uint_t channel);
+
 #ifdef __cplusplus
 }