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examples/aubiomfcc.c: update to latest mfcc version

--- a/examples/aubiomfcc.c

+++ b/examples/aubiomfcc.c

@@ -24,7 +24,7 @@

 aubio_mfcc_t * mfcc;

 uint_t n_filters = 40;

-uint_t n_coefs = 11;

+uint_t n_coefs = 13;

 unsigned int pos = 0; /*frames%dspblocksize*/

 uint_t usepitch = 0;

@@ -69,12 +69,7 @@

       uint_t coef_cnt;

       if (output_filename == NULL) {

-         if(frames >= 4) {

-           outmsg("%f\t",(frames-4)*overlap_size/(float)samplerate);

-         } 

-         else if (frames < 4) {

-           outmsg("%f\t",0.);

-         }

+        outmsg("%f\t",frames*overlap_size/(float)samplerate);

         for (coef_cnt = 0; coef_cnt < n_coefs; coef_cnt++) {

             outmsg("%f ",mfcc_out->data[0][coef_cnt]);

         }

@@ -84,17 +79,15 @@

 int main(int argc, char **argv) {

   // params

-  buffer_size  = 1024;

-  overlap_size = 512;

+  buffer_size  = 512;

+  overlap_size = 256;

   examples_common_init(argc,argv);

-  smpl_t lowfreq = 133.333f;

-  smpl_t highfreq = 44100.f;

   mfcc_out = new_fvec(n_coefs,channels);

   //populating the filter

-  mfcc = new_aubio_mfcc(buffer_size, samplerate, n_filters, n_coefs , lowfreq, highfreq, channels);

+  mfcc = new_aubio_mfcc(buffer_size, samplerate, n_filters, n_coefs);

   //process

   examples_common_process(aubio_process,process_print);