ref: a7880d9a7d53610ea440ab70166ec0d40c27415a
dir: /examples/tests/test-phasevoc.c/
/* test sample for phase vocoder
*
* this program should start correctly using JACK_START_SERVER=true and
* reconstruct each audio input frame perfectly on the corresponding input with
* a delay equal to the window size, hop_s.
*/
#include "aubio.h"
int main(){
uint_t win_s = 1024; /* window size */
uint_t hop_s = 256; /* hop size */
uint_t channels = 4; /* number of channels */
/* allocate some memory */
fvec_t * in = new_fvec (hop_s, channels); /* input buffer */
cvec_t * fftgrain = new_cvec (win_s, channels); /* fft norm and phase */
fvec_t * out = new_fvec (hop_s, channels); /* output buffer */
/* allocate fft and other memory space */
aubio_pvoc_t * pv = new_aubio_pvoc(win_s,hop_s,channels);
/* fill input with some data */
printf("initialised\n");
/* execute stft */
aubio_pvoc_do (pv,in,fftgrain);
printf("computed forward\n");
/* execute inverse fourier transform */
aubio_pvoc_rdo(pv,fftgrain,out);
printf("computed backard\n");
del_aubio_pvoc(pv);
del_fvec(in);
del_cvec(fftgrain);
del_fvec(out);
printf("memory freed\n");
return 0;
}