static LV2_Handle instantiateTss(const LV2_Descriptor *descriptor,
double s_rate, const char *path,
const LV2_Feature * const * features)
{
tss_t *plugin_data = (tss_t *)malloc(sizeof(tss_t));
plugin_data->inbuff=new_fvec (HOP_SIZE,1);
plugin_data->steadybuff=new_fvec (HOP_SIZE,1);
plugin_data->transbuff=new_fvec(HOP_SIZE,1);
memset(plugin_data->steadybuff->data[0],0,HOP_SIZE*sizeof(float));
memset(plugin_data->transbuff->data[0],0,HOP_SIZE*sizeof(float));
plugin_data->tss=new_aubio_tss (0.01, 3, 4, BUFFSIZE, HOP_SIZE, 1);
plugin_data->pv = new_aubio_pvoc (BUFFSIZE,HOP_SIZE,1);
plugin_data->pvt = new_aubio_pvoc(BUFFSIZE,HOP_SIZE,1);
plugin_data->pvs = new_aubio_pvoc(BUFFSIZE,HOP_SIZE,1);
plugin_data->ci=new_cvec (BUFFSIZE, 1);
plugin_data->cs=new_cvec (BUFFSIZE, 1);
plugin_data->ct=new_cvec (BUFFSIZE, 1);
plugin_data->index=0;
return (LV2_Handle)plugin_data;
}
int main (void)
{
uint_t n = 10; // compute n times
uint_t win_s = 1024; // window size
uint_t hop_s = 256; // hop size
// create some vectors
fvec_t * in = new_fvec (hop_s); // input buffer
cvec_t * fftgrain = new_cvec (win_s); // fft norm and phase
cvec_t * cstead = new_cvec (win_s); // fft norm and phase
cvec_t * ctrans = new_cvec (win_s); // fft norm and phase
fvec_t * stead = new_fvec (hop_s); // output buffer
fvec_t * trans = new_fvec (hop_s); // output buffer
// create phase vocoder for analysis of input signal
aubio_pvoc_t * pv = new_aubio_pvoc (win_s,hop_s);
// create transient/steady-state separation object
aubio_tss_t * tss = new_aubio_tss(win_s,hop_s);
// create phase vocoder objects for synthesis of output signals
aubio_pvoc_t * pvt = new_aubio_pvoc(win_s,hop_s);
aubio_pvoc_t * pvs = new_aubio_pvoc(win_s,hop_s);
/* execute stft */
while ( n-- ) {
// fftgrain = pv(in)
aubio_pvoc_do (pv, in, fftgrain);
// ctrans, cstead = tss (fftgrain)
aubio_tss_do (tss, fftgrain, ctrans, cstead);
// stead = pvt_inverse (cstead)
// trans = pvt_inverse (ctrans)
aubio_pvoc_rdo (pvt, cstead, stead);
aubio_pvoc_rdo (pvs, ctrans, trans);
}
aubio_tss_set_alpha(tss, 4.);
aubio_tss_set_beta(tss, 3.);
aubio_tss_set_threshold(tss, 3.);
del_aubio_pvoc(pv);
del_aubio_pvoc(pvt);
del_aubio_pvoc(pvs);
del_aubio_tss(tss);
del_fvec(in);
del_cvec(fftgrain);
del_cvec(cstead);
del_cvec(ctrans);
del_fvec(stead);
del_fvec(trans);
aubio_cleanup();
return 0;
}
int main(){
int i;
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 */
cvec_t * cstead = new_cvec (win_s, channels); /* fft norm and phase */
cvec_t * ctrans = new_cvec (win_s, channels); /* fft norm and phase */
fvec_t * stead = new_fvec (hop_s, channels); /* output buffer */
fvec_t * trans = 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);
aubio_pvoc_t * pvt = new_aubio_pvoc(win_s,hop_s,channels);
aubio_pvoc_t * pvs = new_aubio_pvoc(win_s,hop_s,channels);
aubio_tss_t * tss = new_aubio_tss(0.01,3.,4.,win_s,hop_s,channels);
/* fill input with some data */
printf("initialised\n");
/* execute stft */
for (i = 0; i < 10; i++) {
aubio_pvoc_do (pv,in,fftgrain);
aubio_tss_do (tss,fftgrain,ctrans,cstead);
aubio_pvoc_rdo(pvt,cstead,stead);
aubio_pvoc_rdo(pvs,ctrans,trans);
}
del_aubio_pvoc(pv);
del_fvec(in);
del_cvec(fftgrain);
del_cvec(cstead);
del_cvec(ctrans);
del_fvec(stead);
del_fvec(trans);
aubio_cleanup();
printf("memory freed\n");
return 0;
}
