/* 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", buf_size, hop_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);
o->fftgrain = new_cvec(buf_size);
o->desc = new_fvec(1);
/* set some default parameter */
aubio_onset_set_threshold (o, 0.3);
aubio_onset_set_delay(o, 4.3 * hop_size);
aubio_onset_set_minioi_ms(o, 20.);
aubio_onset_set_silence(o, -70.);
/* initialize internal variables */
o->last_onset = 0;
o->total_frames = 0;
return o;
beach:
AUBIO_FREE(o);
return NULL;
}
/* 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;
}
/* Allocate memory for an onset detection */
aubio_onset_t * new_aubio_onset (char_t * onset_mode,
uint_t buf_size, uint_t hop_size, uint_t samplerate)
{
aubio_onset_t * o = AUBIO_NEW(aubio_onset_t);
/** set some default parameter */
o->samplerate = samplerate;
o->hop_size = hop_size;
o->last_onset = 0;
o->threshold = 0.3;
o->delay = 4.3 * hop_size;
o->minioi = 5 * hop_size;
o->silence = -70;
o->total_frames = 0;
o->pv = new_aubio_pvoc(buf_size, o->hop_size);
o->pp = new_aubio_peakpicker();
aubio_peakpicker_set_threshold (o->pp, o->threshold);
o->od = new_aubio_specdesc(onset_mode,buf_size);
o->fftgrain = new_cvec(buf_size);
o->desc = new_fvec(1);
return o;
}
/* Allocate memory for an tempo detection */
aubio_tempo_t * new_aubio_tempo (char_t * tempo_mode,
uint_t buf_size, uint_t hop_size, uint_t samplerate)
{
aubio_tempo_t * o = AUBIO_NEW(aubio_tempo_t);
char_t specdesc_func[20];
o->samplerate = samplerate;
/* length of observations, worth about 6 seconds */
o->winlen = aubio_next_power_of_two(5.8 * samplerate / hop_size);
o->step = o->winlen/4;
o->blockpos = 0;
o->threshold = 0.3;
o->silence = -90.;
o->total_frames = 0;
o->last_beat = 0;
o->delay = 0;
o->hop_size = hop_size;
o->dfframe = new_fvec(o->winlen);
o->fftgrain = new_cvec(buf_size);
o->out = new_fvec(o->step);
o->pv = new_aubio_pvoc(buf_size, hop_size);
o->pp = new_aubio_peakpicker();
aubio_peakpicker_set_threshold (o->pp, o->threshold);
if ( strcmp(tempo_mode, "default") == 0 ) {
strcpy(specdesc_func, "specflux");
} else {
strcpy(specdesc_func, tempo_mode);
}
o->od = new_aubio_specdesc(specdesc_func,buf_size);
o->of = new_fvec(1);
o->bt = new_aubio_beattracking(o->winlen, o->hop_size, o->samplerate);
o->onset = new_fvec(1);
/*if (usedoubled) {
o2 = new_aubio_specdesc(type_onset2,buffer_size);
onset2 = new_fvec(1);
}*/
return o;
}
