int main(){
/* allocate some memory */
uint_t win_s = 1024; /* window size */
fvec_t * in = new_fvec (win_s); /* input buffer */
fvec_t * out = new_fvec (win_s/4); /* input buffer */
/* allocate fft and other memory space */
aubio_beattracking_t * tempo = new_aubio_beattracking(win_s);
uint_t i = 0;
smpl_t curtempo, curtempoconf;
while (i < 10) {
aubio_beattracking_do(tempo,in,out);
curtempo = aubio_beattracking_get_bpm(tempo);
if (curtempo != 0.) {
fprintf(stdout,"%f\n",curtempo);
return 1;
}
curtempoconf = aubio_beattracking_get_confidence(tempo);
if (curtempoconf != 0.) {
fprintf(stdout,"%f\n",curtempo);
return 1;
}
i++;
};
del_aubio_beattracking(tempo);
del_fvec(in);
del_fvec(out);
aubio_cleanup();
return 0;
}
int main (void)
{
uint_t win_s = 16; // window size
uint_t impulse_at = win_s / 2;
fvec_t *in = new_fvec (win_s); // input buffer
fvec_t *out = new_fvec (win_s); // input buffer
aubio_filter_t *o = new_aubio_filter_c_weighting (44100);
in->data[impulse_at] = 0.5;
fvec_print (in);
aubio_filter_do (o, in);
fvec_print (in);
del_aubio_filter (o);
o = new_aubio_filter_a_weighting (32000);
in->data[impulse_at] = 0.5;
fvec_print (in);
aubio_filter_do_outplace (o, in, out);
fvec_print (out);
aubio_filter_set_a_weighting (o, 32000);
in->data[impulse_at] = 0.5;
fvec_print (in);
aubio_filter_do_filtfilt (o, in, out);
fvec_print (out);
del_fvec (in);
del_fvec (out);
del_aubio_filter (o);
aubio_cleanup ();
return 0;
}
int main (int argc, char **argv)
{
uint_t err = 0;
if (argc < 2) {
err = 2;
PRINT_ERR("not enough arguments\n");
PRINT_MSG("read a wave file as a mono vector\n");
PRINT_MSG("usage: %s <source_path> [samplerate] [win_size] [hop_size]\n", argv[0]);
return err;
}
uint_t samplerate = 0;
if ( argc >= 3 ) samplerate = atoi(argv[2]);
uint_t win_size = 1024; // window size
if ( argc >= 4 ) win_size = atoi(argv[3]);
uint_t hop_size = win_size / 4;
if ( argc >= 5 ) hop_size = atoi(argv[4]);
uint_t n_frames = 0, read = 0;
char_t *source_path = argv[1];
aubio_source_t * source = new_aubio_source(source_path, samplerate, hop_size);
if (!source) { err = 1; goto beach; }
if (samplerate == 0 ) samplerate = aubio_source_get_samplerate(source);
// create some vectors
fvec_t * in = new_fvec (hop_size); // input audio buffer
fvec_t * out = new_fvec (1); // output position
// create tempo object
aubio_tempo_t * o = new_aubio_tempo("default", win_size, hop_size, samplerate);
do {
// put some fresh data in input vector
aubio_source_do(source, in, &read);
// execute tempo
aubio_tempo_do(o,in,out);
// do something with the beats
if (out->data[0] != 0) {
PRINT_MSG("beat at %.3fms, %.3fs, frame %d, %.2fbpm with confidence %.2f\n",
aubio_tempo_get_last_ms(o), aubio_tempo_get_last_s(o),
aubio_tempo_get_last(o), aubio_tempo_get_bpm(o), aubio_tempo_get_confidence(o));
}
n_frames += read;
} while ( read == hop_size );
PRINT_MSG("read %.2fs, %d frames at %dHz (%d blocks) from %s\n",
n_frames * 1. / samplerate,
n_frames, samplerate,
n_frames / hop_size, source_path);
// clean up memory
del_aubio_tempo(o);
del_fvec(in);
del_fvec(out);
del_aubio_source(source);
beach:
aubio_cleanup();
return err;
}
aubio_pvoc_t * new_aubio_pvoc (uint_t win_s, uint_t hop_s, uint_t channels) {
aubio_pvoc_t * pv = AUBIO_NEW(aubio_pvoc_t);
if (win_s < 2*hop_s) {
AUBIO_ERR("Hop size bigger than half the window size!\n");
AUBIO_ERR("Resetting hop size to half the window size.\n");
hop_s = win_s / 2;
}
if (hop_s < 1) {
AUBIO_ERR("Hop size is smaller than 1!\n");
AUBIO_ERR("Resetting hop size to half the window size.\n");
hop_s = win_s / 2;
}
pv->fft = new_aubio_mfft(win_s,channels);
/* remember old */
pv->data = new_fvec (win_s, channels);
pv->synth = new_fvec (win_s, channels);
/* new input output */
pv->dataold = new_fvec (win_s-hop_s, channels);
pv->synthold = new_fvec (win_s-hop_s, channels);
pv->w = AUBIO_ARRAY(smpl_t,win_s);
aubio_window(pv->w,win_s,aubio_win_hanningz);
pv->channels = channels;
pv->hop_s = hop_s;
pv->win_s = win_s;
return pv;
}
int main(){
/* allocate some memory */
uint_t win_s = 1024; /* window size */
fvec_t * in = new_fvec (win_s); /* input buffer */
fvec_t * out = new_fvec (2); /* input buffer */
aubio_tempo_t * o = new_aubio_tempo("complex", win_s, win_s/4, 44100.);
uint_t i = 0;
smpl_t curtempo, curtempoconf;
while (i < 1000) {
aubio_tempo_do(o,in,out);
curtempo = aubio_tempo_get_bpm(o);
if (curtempo != 0.) {
fprintf(stdout,"%f\n",curtempo);
return 1;
}
curtempoconf = aubio_tempo_get_confidence(o);
if (curtempoconf != 0.) {
fprintf(stdout,"%f\n",curtempo);
return 1;
}
i++;
};
del_aubio_tempo(o);
del_fvec(in);
del_fvec(out);
aubio_cleanup();
return 0;
}
//--------------------------------------------------------------
void aubioAnalyzer::setup(){
//the two variables that hold pitch and volume
amplitude = 0;
pitch = 0;
//aubio stuff
win_s = 1024; /* window size */
hop_s = win_s/4; /* hop size */
samplerate = 44100; /* samplerate */
channels = 1; /* number of channel */
mode = aubio_pitchm_freq; //change to aubio_pitchm_midi to get frequency as midi notes
type = aubio_pitch_yinfft;
//setup aubio buffer and pitch detection
in = new_fvec (hop_s, channels);
beats = new_fvec (win_s, channels);
pitch_output = new_aubio_pitchdetection(win_s, hop_s, channels, samplerate, type, mode);
tracker= new_aubio_beattracking(win_s, channels);
pitch_color=pitch_color.blue;
for (int x=0;x<440;x++){
top_pitches[x]= 0;
}
}
int main(){
/* allocate some memory */
uint_t win_s = 4096; /* window size */
uint_t channels = 100; /* number of channels */
fvec_t * in = new_fvec (win_s, channels); /* input buffer */
cvec_t * fftgrain = new_cvec (win_s, channels); /* fft norm and phase */
fvec_t * out = new_fvec (win_s, channels); /* output buffer */
/* allocate fft and other memory space */
aubio_mfft_t * fft = new_aubio_mfft(win_s,channels);
/* fill input with some data */
//printf("initialised\n");
/* execute stft */
aubio_mfft_do (fft,in,fftgrain);
//printf("computed forward\n");
/* execute inverse fourier transform */
aubio_mfft_rdo(fft,fftgrain,out);
//printf("computed backard\n");
del_aubio_mfft(fft);
del_fvec(in);
del_cvec(fftgrain);
del_fvec(out);
//printf("memory freed\n");
aubio_cleanup();
return 0;
}
aubio_pvoc_t * new_aubio_pvoc (uint_t win_s, uint_t hop_s) {
aubio_pvoc_t * pv = AUBIO_NEW(aubio_pvoc_t);
/* if (win_s < 2*hop_s) {
AUBIO_WRN("Hop size bigger than half the window size!\n");
} */
if (hop_s < 1) {
AUBIO_ERR("Hop size is smaller than 1!\n");
AUBIO_ERR("Resetting hop size to half the window size.\n");
hop_s = win_s / 2;
}
pv->fft = new_aubio_fft (win_s);
/* remember old */
pv->data = new_fvec (win_s);
pv->synth = new_fvec (win_s);
/* new input output */
pv->dataold = new_fvec (win_s-hop_s);
pv->synthold = new_fvec (win_s-hop_s);
pv->w = new_aubio_window ("hanningz", win_s);
pv->hop_s = hop_s;
pv->win_s = win_s;
return pv;
}
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 ()
{
uint_t win_s = 64; // window size
// create biquad filter with `b0`, `b1`, `b2`, `a1`, `a2`
aubio_filter_t * o = new_aubio_filter_biquad(0.3,0.2,0.1,0.2,0.3);
fvec_t * in_vec = new_fvec (win_s); // input buffer
fvec_t * tmp_vec = new_fvec (win_s); // temporary buffer
fvec_t * out_vec = new_fvec (win_s); // output buffer
uint_t times = 100;
while ( times-- ) {
// copy to out, then filter out
aubio_filter_do_outplace(o, in_vec, out_vec);
// in-place filtering
aubio_filter_do(o, in_vec);
// in-place filtering
aubio_filter_do_filtfilt(o, in_vec, out_vec);
fvec_print(in_vec);
}
// memory clean-up, one for each new
del_aubio_filter(o);
del_fvec(in_vec);
del_fvec(tmp_vec);
del_fvec(out_vec);
return 0;
}
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;
}
void AubioOnsetDetector :: initialise(){
//reinitialises our object
o = new_aubio_onsetdetection(aubio_onset_complex, buffersize, 1);//initially in complex mode
pv = (aubio_pvoc_t *)new_aubio_pvoc(buffersize, hopsize, 1);
parms = new_aubio_peakpicker(threshold);
vec = (fvec_t *)new_fvec(hopsize,1);
pos = 0;
fvec_write_sample(vec, 0.234, 0, pos);
fftgrain = (cvec_t *)new_cvec(buffersize,1);
onset = (fvec_t *)new_fvec(1,1);
}
aubio_pitchfcomb_t *
new_aubio_pitchfcomb (uint_t bufsize, uint_t hopsize)
{
aubio_pitchfcomb_t *p = AUBIO_NEW (aubio_pitchfcomb_t);
p->fftSize = bufsize;
p->stepSize = hopsize;
p->winput = new_fvec (bufsize);
p->fftOut = new_cvec (bufsize);
p->fftLastPhase = new_fvec (bufsize);
p->fft = new_aubio_fft (bufsize);
p->win = new_aubio_window ("hanning", bufsize);
return p;
}
aubio_pitchmcomb_t *
new_aubio_pitchmcomb (uint_t bufsize, uint_t hopsize)
{
aubio_pitchmcomb_t *p = AUBIO_NEW (aubio_pitchmcomb_t);
/* bug: should check if size / 8 > post+pre+1 */
uint_t i, j;
uint_t spec_size;
p->spec_partition = 4;
p->ncand = 5;
p->npartials = 5;
p->cutoff = 1.;
p->threshold = 0.01;
p->win_post = 8;
p->win_pre = 7;
// p->tau = samplerate/bufsize;
p->alpha = 9.;
p->goodcandidate = 0;
p->phasefreq = bufsize / hopsize / TWO_PI;
p->phasediff = TWO_PI * hopsize / bufsize;
spec_size = bufsize / p->spec_partition;
//p->pickerfn = quadpick;
//p->biquad = new_biquad(0.1600,0.3200,0.1600, -0.5949, 0.2348);
/* allocate temp memory */
p->newmag = new_fvec (spec_size);
/* array for median */
p->scratch = new_fvec (spec_size);
/* array for phase */
p->theta = new_fvec (spec_size);
/* array for adaptative threshold */
p->scratch2 = new_fvec (p->win_post + p->win_pre + 1);
/* array of spectral peaks */
p->peaks = AUBIO_ARRAY (aubio_spectralpeak_t, spec_size);
for (i = 0; i < spec_size; i++) {
p->peaks[i].bin = 0.;
p->peaks[i].ebin = 0.;
p->peaks[i].mag = 0.;
}
/* array of pointers to spectral candidates */
p->candidates = AUBIO_ARRAY (aubio_spectralcandidate_t *, p->ncand);
for (i = 0; i < p->ncand; i++) {
p->candidates[i] = AUBIO_NEW (aubio_spectralcandidate_t);
p->candidates[i]->ecomb = AUBIO_ARRAY (smpl_t, spec_size);
for (j = 0; j < spec_size; j++) {
p->candidates[i]->ecomb[j] = 0.;
}
p->candidates[i]->ene = 0.;
p->candidates[i]->ebin = 0.;
p->candidates[i]->len = 0.;
}
return p;
}
aubio_pitchspecacf_t *
new_aubio_pitchspecacf (uint_t bufsize)
{
aubio_pitchspecacf_t *p = AUBIO_NEW (aubio_pitchspecacf_t);
p->win = new_aubio_window ("hanningz", bufsize);
p->winput = new_fvec (bufsize);
p->fft = new_aubio_fft (bufsize);
p->fftout = new_fvec (bufsize);
p->sqrmag = new_fvec (bufsize);
p->acf = new_fvec (bufsize / 2 + 1);
p->tol = 1.;
p->confidence = 0.;
return p;
}
aubio_notes_t * new_aubio_notes (const char_t * method,
uint_t buf_size, uint_t hop_size, uint_t samplerate) {
aubio_notes_t *o = AUBIO_NEW(aubio_notes_t);
const char_t * onset_method = "default";
const char_t * pitch_method = "default";
o->onset_buf_size = buf_size;
o->pitch_buf_size = buf_size * 4;
o->hop_size = hop_size;
o->onset_threshold = 0.;
o->pitch_tolerance = 0.;
o->samplerate = samplerate;
o->median = 6;
o->isready = 0;
o->onset = new_aubio_onset (onset_method, o->onset_buf_size, o->hop_size, o->samplerate);
if (o->onset_threshold != 0.) aubio_onset_set_threshold (o->onset, o->onset_threshold);
o->onset_output = new_fvec (1);
o->pitch = new_aubio_pitch (pitch_method, o->pitch_buf_size, o->hop_size, o->samplerate);
if (o->pitch == NULL) goto fail;
if (o->pitch_tolerance != 0.) aubio_pitch_set_tolerance (o->pitch, o->pitch_tolerance);
aubio_pitch_set_unit (o->pitch, "midi");
o->pitch_output = new_fvec (1);
if (strcmp(method, "default") != 0) {
AUBIO_ERR("notes: unknown notes detection method \"%s\"\n", method);
goto fail;
}
o->note_buffer = new_fvec(o->median);
o->note_buffer2 = new_fvec(o->median);
o->curnote = -1.;
o->newnote = 0.;
aubio_notes_set_silence(o, AUBIO_DEFAULT_NOTES_SILENCE);
aubio_notes_set_minioi_ms (o, AUBIO_DEFAULT_NOTES_MINIOI_MS);
return o;
fail:
del_aubio_notes(o);
return NULL;
}
int main(int argc, char **argv) {
// override general settings from utils.c
buffer_size = 1024;
hop_size = 512;
rgb_music_init();
examples_common_init(argc,argv);
verbmsg ("using source: %s at %dHz\n", source_uri, samplerate);
verbmsg ("tempo method: %s, ", tempo_method);
verbmsg ("buffer_size: %d, ", buffer_size);
verbmsg ("hop_size: %d, ", hop_size);
verbmsg ("threshold: %f\n", onset_threshold);
tempo_out = new_fvec(2);
tempo = new_aubio_tempo(tempo_method, buffer_size, hop_size, samplerate);
if (onset_threshold != 0.) aubio_tempo_set_threshold (tempo, onset_threshold);
pitch = new_aubio_pitch (pitch_method, buffer_size, hop_size, samplerate);
if (pitch_tolerance != 0.)
aubio_pitch_set_tolerance (pitch, pitch_tolerance);
if (silence_threshold != -90.)
aubio_pitch_set_silence (pitch, silence_threshold);
if (pitch_unit != NULL)
aubio_pitch_set_unit (pitch, pitch_unit);
pitch_out = new_fvec (1);
wavetable = new_aubio_wavetable (samplerate, hop_size);
aubio_wavetable_set_freq ( wavetable, 2450.);
//aubio_sampler_load (sampler, "/archives/sounds/woodblock.aiff");
examples_common_process((aubio_process_func_t)process_block,process_print);
del_aubio_tempo(tempo);
del_aubio_wavetable (wavetable);
del_fvec(tempo_out);
del_aubio_pitch (pitch);
del_fvec (pitch_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;
}
static PyObject *
Py_filter_do(Py_filter * self, PyObject * args)
{
PyObject *input;
fvec_t *vec;
if (!PyArg_ParseTuple (args, "O:digital_filter.do", &input)) {
return NULL;
}
if (input == NULL) {
return NULL;
}
vec = PyAubio_ArrayToCFvec (input);
if (vec == NULL) {
return NULL;
}
// compute the function
fvec_t * out = new_fvec(vec->length);
aubio_filter_do_outplace (self->o, vec, out);
return PyAubio_CFvecToArray(out);
}
int main(int argc, char **argv) {
// override general settings from utils.c
buffer_size = 1024;
hop_size = 512;
examples_common_init(argc,argv);
verbmsg ("using source: %s at %dHz\n", source_uri, samplerate);
verbmsg ("tempo method: %s, ", tempo_method);
verbmsg ("buffer_size: %d, ", buffer_size);
verbmsg ("hop_size: %d, ", hop_size);
verbmsg ("threshold: %f\n", onset_threshold);
tempo_out = new_fvec(2);
tempo = new_aubio_tempo(tempo_method, buffer_size, hop_size, samplerate);
// set silence threshold very low to output beats even during silence
// aubio_tempo_set_silence(tempo, -1000.);
if (onset_threshold != 0.) aubio_tempo_set_threshold (tempo, onset_threshold);
wavetable = new_aubio_wavetable (samplerate, hop_size);
aubio_wavetable_set_freq ( wavetable, 2450.);
//aubio_sampler_load (sampler, "/archives/sounds/woodblock.aiff");
examples_common_process((aubio_process_func_t)process_block,process_print);
del_aubio_tempo(tempo);
del_aubio_wavetable (wavetable);
del_fvec(tempo_out);
examples_common_del();
return 0;
}
int main ()
{
uint_t win_s = 512; // fft size
uint_t n_filters = 40; // number of filters
uint_t n_coefs = 13; // number of coefficients
smpl_t samplerate = 16000.; // samplerate
cvec_t *in = new_cvec (win_s); // input buffer
fvec_t *out = new_fvec (n_coefs); // output coefficients
// create mfcc object
aubio_mfcc_t *o = new_aubio_mfcc (win_s, n_filters, n_coefs, samplerate);
cvec_set_all_norm (in, 1.);
aubio_mfcc_do (o, in, out);
fvec_print (out);
cvec_set_all_norm (in, .5);
aubio_mfcc_do (o, in, out);
fvec_print (out);
// clean up
del_aubio_mfcc (o);
del_cvec (in);
del_fvec (out);
aubio_cleanup ();
return 0;
}
void Note2midi::set_plugin(){
o = new_aubio_onset (onset_method, PARAM_BUFFER_SIZE, PARAM_HOP_SIZE_ONSET, samplerate);
if (onset_threshold != 0.) aubio_onset_set_threshold (o, onset_threshold);
onset = new_fvec (1);
pitch = new_aubio_pitch (pitch_method, PARAM_BUFFER_SIZE * PARAM_PITCH_BUFF_TIMES, PARAM_HOP_SIZE_PITCH, samplerate);
if (pitch_tolerance != 0.) aubio_pitch_set_tolerance (pitch, pitch_tolerance);
pitch_obuf = new_fvec (1);
printf("%s\n", pitch_unit);
if (median) {
note_buffer = new_fvec (median);
note_buffer2 = new_fvec (median);
}
}
aubio_tss_t * new_aubio_tss(uint_t buf_size, uint_t hop_size)
{
aubio_tss_t * o = AUBIO_NEW(aubio_tss_t);
uint_t rsize = buf_size/2+1;
o->threshold = 0.25;
o->thrsfact = TWO_PI*hop_size/rsize;
o->alpha = 3.;
o->beta = 4.;
o->parm = o->threshold*o->thrsfact;
o->theta1 = new_fvec(rsize);
o->theta2 = new_fvec(rsize);
o->oft1 = new_fvec(rsize);
o->oft2 = new_fvec(rsize);
o->dev = new_fvec(rsize);
return o;
}
int main(int argc, char **argv) {
buffer_size = 2048;
examples_common_init(argc,argv);
verbmsg ("using source: %s at %dHz\n", source_uri, samplerate);
verbmsg ("pitch method: %s, ", pitch_method);
verbmsg ("pitch unit: %s, ", pitch_unit);
verbmsg ("buffer_size: %d, ", buffer_size);
verbmsg ("hop_size: %d, ", hop_size);
verbmsg ("tolerance: %f\n", pitch_tolerance);
o = new_aubio_pitch (pitch_method, buffer_size, hop_size, samplerate);
if (pitch_tolerance != 0.) aubio_pitch_set_tolerance (o, pitch_tolerance);
if (pitch_unit != NULL) aubio_pitch_set_unit (o, pitch_unit);
pitch = new_fvec (1);
wavetable = new_aubio_wavetable (samplerate, hop_size);
aubio_wavetable_play ( wavetable );
examples_common_process((aubio_process_func_t)process_block,process_print);
del_aubio_pitch (o);
del_aubio_wavetable (wavetable);
del_fvec (pitch);
examples_common_del();
return 0;
}
/* function Py_source_do */
static PyObject *
Py_source_do(Py_source * self, PyObject * args)
{
/* output vectors prototypes */
fvec_t* read_to;
uint_t read;
/* creating output read_to as a new_fvec of length self->hop_size */
read_to = new_fvec (self->hop_size);
read = 0;
/* compute _do function */
aubio_source_do (self->o, read_to, &read);
PyObject *outputs = PyList_New(0);
PyList_Append( outputs, (PyObject *)PyAubio_CFvecToArray (read_to));
//del_fvec (read_to);
PyList_Append( outputs, (PyObject *)PyLong_FromLong (read));
return outputs;
}
void aubio_init(int c) {
channels = c;
/* phase vocoder */
pv = new_aubio_pvoc(buffer_size, overlap_size, channels);
ibuf = new_fvec(overlap_size, channels);
fftgrain = new_cvec(buffer_size, channels);
o = new_aubio_onsetdetection(type_onset, buffer_size, channels);
parms = new_aubio_peakpicker(threshold);
onset = new_fvec(1, channels);
pos = 0;
onset_n = 0;
if (usedoubled) {
o2 = new_aubio_onsetdetection(type_onset2,buffer_size,channels);
onset2 = new_fvec(1 , channels);
}
}
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;
}
AubioOnsetDetector :: AubioOnsetDetector(){
buffersize = 1024;
hopsize = 512;
//aubio related setup
o = new_aubio_onsetdetection(aubio_onset_complex, buffersize, 1);//initially in complex mode
pv = (aubio_pvoc_t *)new_aubio_pvoc(buffersize, hopsize, 1);
parms = new_aubio_peakpicker(threshold);
vec = (fvec_t *)new_fvec(hopsize,1);
threshold = 1;
threshold2 = -70.;
maximumDetectionValue = 10.0;
resetValues();
thresholdRelativeToMedian = 1.1;
cutoffForRepeatOnsetsMillis = 100;
medianSpeed = 15;
pos = 0;
detectionTriggerRatio = 0.5f;
detectionTriggerThreshold = 10;
}
aubio_wavetable_t *new_aubio_wavetable(uint_t samplerate, uint_t blocksize)
{
uint_t i = 0;
aubio_wavetable_t *s = AUBIO_NEW(aubio_wavetable_t);
if ((sint_t)samplerate <= 0) {
AUBIO_ERR("Can not create wavetable with samplerate %d\n", samplerate);
goto beach;
}
s->samplerate = samplerate;
s->blocksize = blocksize;
s->wavetable_length = WAVETABLE_LEN;
s->wavetable = new_fvec(s->wavetable_length + 3);
for (i = 0; i < s->wavetable_length; i++) {
s->wavetable->data[i] = SIN(TWO_PI * i / (smpl_t) s->wavetable_length );
}
s->wavetable->data[s->wavetable_length] = s->wavetable->data[0];
s->wavetable->data[s->wavetable_length + 1] = s->wavetable->data[1];
s->wavetable->data[s->wavetable_length + 2] = s->wavetable->data[2];
s->playing = 0;
s->last_pos = 0.;
s->freq = new_aubio_parameter( 0., s->samplerate / 2., 10 );
s->amp = new_aubio_parameter( 0., 1., 100 );
return s;
beach:
AUBIO_FREE(s);
return NULL;
}
void pitchDetector::setup(char_t * unit, char_t * method) {
samplerate = 44100;
uint_t win_s = 2048; // window size
uint_t hop_s = 512; // hop size
pitch_tolerance = 0;
silence_threshold = -90.;
pitch_unit = unit;
pitch_method = method;
blocks = 0;
o = new_aubio_pitch (pitch_method, win_s, hop_s, samplerate);
if (pitch_tolerance != 0.)
aubio_pitch_set_tolerance (o, pitch_tolerance);
if (silence_threshold != -90.)
aubio_pitch_set_silence (o, silence_threshold);
if (pitch_unit != NULL)
aubio_pitch_set_unit (o, pitch_unit);
pitch = new_fvec (1);
}
