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;
}
AubioOnsetDetector :: ~AubioOnsetDetector(){
aubio_onsetdetection_free (o);
del_aubio_pvoc(pv);
del_aubio_peakpicker(parms);
del_fvec(vec);
aubio_cleanup();
}
int main(int argc, char **argv) {
// change some default params
buffer_size = 512;
hop_size = 256;
examples_common_init(argc,argv);
verbmsg ("using source: %s at %dHz\n", source_uri, samplerate);
verbmsg ("buffer_size: %d, ", buffer_size);
verbmsg ("hop_size: %d\n", hop_size);
pv = new_aubio_pvoc (buffer_size, hop_size);
fftgrain = new_cvec (buffer_size);
mfcc = new_aubio_mfcc(buffer_size, n_filters, n_coefs, samplerate);
mfcc_out = new_fvec(n_coefs);
examples_common_process((aubio_process_func_t)process_block, process_print);
del_aubio_pvoc (pv);
del_cvec (fftgrain);
del_aubio_mfcc(mfcc);
del_fvec(mfcc_out);
examples_common_del();
return 0;
}
int main(int argc, char **argv) {
// params
buffer_size = 512;
overlap_size = 256;
examples_common_init(argc,argv);
/* phase vocoder */
pv = new_aubio_pvoc (buffer_size, overlap_size);
fftgrain = new_cvec (buffer_size);
//populating the filter
mfcc = new_aubio_mfcc(buffer_size, n_filters, n_coefs, samplerate);
mfcc_out = new_fvec(n_coefs);
//process
examples_common_process(aubio_process,process_print);
//destroying mfcc
del_aubio_pvoc (pv);
del_cvec (fftgrain);
del_aubio_mfcc(mfcc);
del_fvec(mfcc_out);
examples_common_del();
debug("End of program.\n");
fflush(stderr);
return 0;
}
void
del_aubio_pitch (aubio_pitch_t * p)
{
switch (p->type) {
case aubio_pitcht_yin:
del_fvec (p->buf);
del_aubio_pitchyin (p->p_object);
break;
case aubio_pitcht_mcomb:
del_aubio_pvoc (p->pv);
del_cvec (p->fftgrain);
del_aubio_filter (p->filter);
del_aubio_pitchmcomb (p->p_object);
break;
case aubio_pitcht_schmitt:
del_fvec (p->buf);
del_aubio_pitchschmitt (p->p_object);
break;
case aubio_pitcht_fcomb:
del_fvec (p->buf);
del_aubio_pitchfcomb (p->p_object);
break;
case aubio_pitcht_yinfft:
del_fvec (p->buf);
del_aubio_pitchyinfft (p->p_object);
break;
case aubio_pitcht_specacf:
del_fvec (p->buf);
del_aubio_pitchspecacf (p->p_object);
break;
default:
break;
}
AUBIO_FREE (p);
}
static void cleanupTss(LV2_Handle instance)
{
tss_t* t=(tss_t*)instance;
del_fvec(t->inbuff);
del_fvec(t->transbuff);
del_fvec(t->steadybuff);
del_cvec (t->ci);
del_cvec (t->ct);
del_cvec (t->cs);
del_aubio_tss(t->tss);
del_aubio_pvoc(t->pv);
del_aubio_pvoc(t->pvs);
del_aubio_pvoc(t->pvt);
free(instance);
aubio_cleanup(); //Not sure if I should do this.
}
void del_aubio_onset (aubio_onset_t *o)
{
del_aubio_specdesc(o->od);
del_aubio_peakpicker(o->pp);
del_aubio_pvoc(o->pv);
del_fvec(o->desc);
del_cvec(o->fftgrain);
AUBIO_FREE(o);
}
ofxAubioMelBands::~ofxAubioMelBands()
{
if (spectrum) del_cvec(spectrum);
if (pv) del_aubio_pvoc(pv);
if (bands) del_fvec(bands);
if (fb) del_aubio_filterbank(fb);
cleanup();
ofLogNotice() << "deleted ofxAubioMelBands";
}
void aubio_destruct() {
del_aubio_pvoc(pv);
del_fvec(ibuf);
del_cvec(fftgrain);
del_aubio_onsetdetection(o);
del_aubio_peakpicker(parms);
del_fvec(onset);
if (usedoubled) {
del_aubio_onsetdetection(o2);
del_fvec(onset2);
}
}
void del_aubio_tempo (aubio_tempo_t *o)
{
del_aubio_onsetdetection(o->od);
del_aubio_beattracking(o->bt);
del_aubio_peakpicker(o->pp);
del_aubio_pvoc(o->pv);
del_fvec(o->out);
del_fvec(o->of);
del_cvec(o->fftgrain);
del_fvec(o->dfframe);
AUBIO_FREE(o);
return;
}
/* Allocate memory for an onset detection */
aubio_onset_t * new_aubio_onset (const char_t * onset_mode,
uint_t buf_size, uint_t hop_size, uint_t samplerate)
{
aubio_onset_t * o = AUBIO_NEW(aubio_onset_t);
/* check parameters are valid */
if ((sint_t)hop_size < 1) {
AUBIO_ERR("onset: got hop_size %d, but can not be < 1\n", hop_size);
goto beach;
} else if ((sint_t)buf_size < 2) {
AUBIO_ERR("onset: got buffer_size %d, but can not be < 2\n", buf_size);
goto beach;
} else if (buf_size < hop_size) {
AUBIO_ERR("onset: hop size (%d) is larger than win size (%d)\n", hop_size, buf_size);
goto beach;
} else if ((sint_t)samplerate < 1) {
AUBIO_ERR("onset: samplerate (%d) can not be < 1\n", samplerate);
goto beach;
}
/* store creation parameters */
o->samplerate = samplerate;
o->hop_size = hop_size;
/* allocate memory */
o->pv = new_aubio_pvoc(buf_size, o->hop_size);
o->pp = new_aubio_peakpicker();
o->od = new_aubio_specdesc(onset_mode,buf_size);
if (o->od == NULL) goto beach_specdesc;
o->fftgrain = new_cvec(buf_size);
o->desc = new_fvec(1);
o->spectral_whitening = new_aubio_spectral_whitening(buf_size, hop_size, samplerate);
/* initialize internal variables */
aubio_onset_set_default_parameters (o, onset_mode);
aubio_onset_reset(o);
return o;
beach_specdesc:
del_aubio_peakpicker(o->pp);
del_aubio_pvoc(o->pv);
beach:
AUBIO_FREE(o);
return NULL;
}
int main (void)
{
uint_t n = 6; // compute n times
uint_t win_s = 32; // window size
uint_t hop_s = win_s / 4; // hop size
fvec_t * in = new_fvec (hop_s); // input buffer
cvec_t * fftgrain = new_cvec (win_s); // fft norm and phase
fvec_t * out = new_fvec (hop_s); // output buffer
// allocate fft and other memory space
aubio_pvoc_t * pv = new_aubio_pvoc(win_s,hop_s);
// fill input with some data
fvec_set_all (in, 1.);
fvec_print (in);
while ( n-- ) {
// get some fresh input data
// ..
// execute phase vocoder
aubio_pvoc_do (pv,in,fftgrain);
// do something with fftgrain
// ...
cvec_print (fftgrain);
// optionally rebuild the signal
aubio_pvoc_rdo(pv,fftgrain,out);
// and do something with the result
// ...
fvec_print (out);
}
// clean up
del_fvec(in);
del_cvec(fftgrain);
del_fvec(out);
del_aubio_pvoc(pv);
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;
}
int main (int argc, char** argv)
{
sint_t err = 0;
if (argc < 2) {
err = 2;
PRINT_WRN("no arguments, running tests\n");
err = test_wrong_params();
PRINT_MSG("usage: %s <input_path> [samplerate] [hop_size]\n", argv[0]);
return err;
}
uint_t win_s; // fft size
uint_t hop_s = 256; // block size
uint_t samplerate = 0; // samplerate
uint_t n_filters = 40; // number of filters
uint_t n_coeffs = 13; // number of coefficients
uint_t read = 0;
char_t *source_path = argv[1];
if ( argc >= 3 ) samplerate = atoi(argv[2]);
if ( argc >= 4 ) hop_s = atoi(argv[3]);
win_s = 2 * hop_s;
aubio_source_t *source = 0;
aubio_pvoc_t *pv = 0;
aubio_mfcc_t *mfcc = 0;
fvec_t *in = new_fvec (hop_s); // phase vocoder input
cvec_t *fftgrain = new_cvec (win_s); // pvoc output / mfcc input
fvec_t *out = new_fvec (n_coeffs); // mfcc output
if (!in || !fftgrain || !out) { err = 1; goto failure; }
// source
source = new_aubio_source(source_path, samplerate, hop_s);
if (!source) { err = 1; goto failure; }
if (samplerate == 0) samplerate = aubio_source_get_samplerate(source);
// phase vocoder
pv = new_aubio_pvoc(win_s, hop_s);
if (!pv) { err = 1; goto failure; }
// mfcc object
mfcc = new_aubio_mfcc (win_s, n_filters, n_coeffs, samplerate);
if (!mfcc) { err = 1; goto failure; }
// processing loop
do {
aubio_source_do(source, in, &read);
aubio_pvoc_do(pv, in, fftgrain);
aubio_mfcc_do(mfcc, fftgrain, out);
fvec_print(out);
} while (read == hop_s);
failure:
if (mfcc)
del_aubio_mfcc(mfcc);
if (pv)
del_aubio_pvoc(pv);
if (source)
del_aubio_source(source);
if (in)
del_fvec(in);
if (fftgrain)
del_cvec(fftgrain);
if (out)
del_fvec(out);
aubio_cleanup();
return err;
}
