ref: 1d4fc4a1aca4ffd957827d557776b23526e340a0
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; }