From: Paul Brossier <piem@piem.org>
Date: Thu, 17 Sep 2009 22:57:31 +0000 (+0200)
Subject: src/spectral/mfcc.c: zero output before computing it
X-Git-Tag: 0.4.0-beta1~863
X-Git-Url: https://git.aubio.org/?a=commitdiff_plain;h=c218821f6caf921887f251371bf4ad98c28673db;p=aubio.git

src/spectral/mfcc.c: zero output before computing it
---

diff --git a/src/spectral/mfcc.c b/src/spectral/mfcc.c
index 60f998aa..b7dca023 100644
--- a/src/spectral/mfcc.c
+++ b/src/spectral/mfcc.c
@@ -97,10 +97,14 @@ void
 aubio_mfcc_do (aubio_mfcc_t * mf, cvec_t * in, fvec_t * out)
 {
   uint_t i, j;
+
   /* compute filterbank */
   aubio_filterbank_do (mf->fb, in, mf->in_dct);
 
-  /* extract real part of fft grain */
+  /* zeros output */
+  fvec_zeros(out);
+
+  /* compute discrete cosine transform */
   for (i = 0; i < mf->n_filters; i++) {
     for (j = 0; j < mf->n_coefs; j++) {
       out->data[0][j] += mf->in_dct->data[0][i]