[Libxtract-commits] SF.net SVN: libxtract: [103] trunk

[<dan...@us...>]

Revision: 103
          http://libxtract.svn.sourceforge.net/libxtract/?rev=103&view=rev
Author:   danstowell
Date:     2007-10-09 06:47:58 -0700 (Tue, 09 Oct 2007)

Log Message:
-----------
Fixed bug in xtract_init_mfcc() - iteration to decide filter peak positions only filled in freq_bands+1 values, when it should fill in freq_bands+2

Modified Paths:
--------------
    trunk/ChangeLog
    trunk/src/init.c

Modified: trunk/ChangeLog
===================================================================
--- trunk/ChangeLog	2007-10-08 10:32:16 UTC (rev 102)
+++ trunk/ChangeLog	2007-10-09 13:47:58 UTC (rev 103)
@@ -1,3 +1,7 @@
+2007-10-09 Dan Stowell
+    * version 0.5.1
+        * Fixed bug in xtract_init_mfcc() which accidentally missed filling in the very top filter frequency value
+
 2007-10-06 Jamie Bullock <ja...@po...>
     * version 0.5.0
 	* Removed fftw_plan creation from inner loop of functions that use fft

Modified: trunk/src/init.c
===================================================================
--- trunk/src/init.c	2007-10-08 10:32:16 UTC (rev 102)
+++ trunk/src/init.c	2007-10-09 13:47:58 UTC (rev 103)
@@ -69,15 +69,15 @@
     fft_peak[0] = lin_peak[0] / nyquist * M;
 
 
-    for (n = 1; n <= freq_bands; n++){	
-    /*roll out peak locations - mel, linear and linear on fft window scale */
+    for (n = 1; n < freq_bands + 2; n++){	
+        //roll out peak locations - mel, linear and linear on fft window scale 
         mel_peak[n] = mel_peak[n - 1] + freq_bw_mel;
         lin_peak[n] = 700 * (exp(mel_peak[n] / 1127) -1);
         fft_peak[n] = lin_peak[n] / nyquist * M;
     }
 
     for (n = 0; n < freq_bands; n++){
-        /*roll out normalised gain of each peak*/
+        //roll out normalised gain of each peak
         if (style == XTRACT_EQUAL_GAIN){
             height = 1;	
             norm_fact = norm;


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