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] [hop_size]\n", argv[0]);
return err;
}
uint_t samplerate = 0;
uint_t win_s = 1024; // window size
uint_t hop_size = win_s / 4;
uint_t n_frames = 0, read = 0;
if ( argc == 3 ) samplerate = atoi(argv[2]);
if ( argc == 4 ) hop_size = atoi(argv[3]);
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 (2); // output position
// create onset object
aubio_onset_t * o = new_aubio_onset("default", win_s, hop_size, samplerate);
do {
// put some fresh data in input vector
aubio_source_do(source, in, &read);
// execute onset
aubio_onset_do(o,in,out);
// do something with the onsets
if (out->data[0] != 0) {
PRINT_MSG("onset at %.3fms, %.3fs, frame %d\n",
aubio_onset_get_last_ms(o), aubio_onset_get_last_s(o),
aubio_onset_get_last(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_onset(o);
del_fvec(in);
del_fvec(out);
beach:
aubio_cleanup();
return err;
}
void del_aubio_notes (aubio_notes_t *o) {
if (o->note_buffer) del_fvec(o->note_buffer);
if (o->note_buffer2) del_fvec(o->note_buffer2);
if (o->pitch_output) del_fvec(o->pitch_output);
if (o->pitch) del_aubio_pitch(o->pitch);
if (o->onset_output) del_fvec(o->onset_output);
if (o->onset) del_aubio_onset(o->onset);
AUBIO_FREE(o);
}
int main(int argc, char **argv) {
frames_delay = 3;
examples_common_init(argc,argv);
o = new_aubio_onset (onset_mode, buffer_size, overlap_size, samplerate);
if (threshold != 0.) aubio_onset_set_threshold (o, threshold);
onset = new_fvec (1);
examples_common_process(aubio_process,process_print);
del_aubio_onset (o);
del_fvec (onset);
examples_common_del();
debug("End of program.\n");
fflush(stderr);
return 0;
}
int main(){
/* allocate some memory */
uint_t win_s = 1024; /* window size */
fvec_t * in = new_fvec (win_s/4); /* input buffer */
fvec_t * out = new_fvec (2); /* input buffer */
aubio_onset_t * onset = new_aubio_onset("complex", win_s, win_s/4, 44100.);
uint_t i = 0;
while (i < 10) {
aubio_onset_do (onset,in,out);
i++;
};
del_aubio_onset(onset);
del_fvec(in);
del_fvec(out);
aubio_cleanup();
return 0;
}
//Creates a list of times which the aubio onset detector thinks are note onset times for the audio Denemo->si->recording
//Result is placed in Denemo->si->note_onsets
void
generate_note_onsets (void)
{
DenemoRecording *audio = Denemo.project->movement->recording;
gint channels = audio->channels;
smpl_t threshold = 0.3;
smpl_t silence = -90.;
uint_t buffer_size = 1024;
uint_t overlap_size = 512;
uint_t samplerate = 44100;
aubio_onset_t *o = new_aubio_onset("default",
buffer_size, overlap_size, samplerate);
fvec_t *ibuf = new_fvec (overlap_size);
fvec_t *onset = new_fvec (2);
unsigned int pos = 0; /*frames%dspblocksize */
unsigned int i; /*channels */
unsigned int j; /*frames */
busy_cursor (Denemo.notebook);
gtk_window_set_modal (progressbar (_("Analysing Audio"), NULL), TRUE);
rewind_audio ();
if (audio->notes)
{
g_list_free_full (audio->notes, g_free);
audio->notes = NULL;
}
for (j = 0; j < (unsigned) audio->nframes; j++)
{
sf_read_float (audio->sndfile, ibuf->data + pos, 2); //g_debug("\t%f", ibuf->data[0][pos]);
if (pos == overlap_size - 1)
{
/* block loop */
gtk_main_iteration_do (FALSE);
aubio_onset_do (o, ibuf, onset);
while (gtk_events_pending ())
gtk_main_iteration ();
if(onset->data[0] != 0) {
DenemoRecordedNote *note = g_malloc0(sizeof(DenemoRecordedNote));
note->timing = aubio_onset_get_last(o);/* aubio_onset_get_delay_s(o) for seconds */
audio->notes = g_list_append (audio->notes, note);
}
pos = -1; /* so it will be zero next j loop */
} /* end of if pos==overlap_size-1 */
pos++;
}
del_aubio_onset (o);
del_fvec (ibuf);
del_fvec (onset);
aubio_cleanup ();
progressbar_stop ();
normal_cursor (Denemo.notebook);
}
void Note2midi::run(LV2_Handle instance, uint32_t SampleCount)
{
Note2midi *plugin = (Note2midi *) instance;
unsigned int new_onset_method = (unsigned int)(*plugin->_onset_method);
unsigned int new_pitch_method = (unsigned int)(*plugin->_pitch_method);
char_t* on_meth;
char_t* pi_meth;
silence_threshold = *(plugin->_silence_threshold);
aubio_onset_set_threshold(plugin->o, *plugin->_onset_threshold);
aubio_pitch_set_tolerance(plugin->pitch, *plugin->_pitch_method);
if(0 <= new_onset_method && 16 >= new_onset_method &&
new_onset_method != plugin->current_onset_method){
del_aubio_onset(plugin->o);
switch(new_onset_method){
case ONSET_METHOD_ENERGY:
on_meth = "energy";
break;
case ONSET_METHOD_SPECDIFF:
on_meth = "specdiff";
break;
case ONSET_METHOD_HFC:
on_meth = "hfc";
break;
case ONSET_METHOD_COMPLEXDOMAIN:
on_meth = "complexdomain";
break;
case ONSET_METHOD_COMPLEX:
on_meth = "complex";
break;
case ONSET_METHOD_PHASE:
on_meth = "phase";
break;
case ONSET_METHOD_MKL:
on_meth = "mkl";
break;
case ONSET_METHOD_KL:
on_meth = "kl";
break;
case ONSET_METHOD_SPECFLUX:
on_meth = "specflux";
break;
case ONSET_METHOD_CENTROID:
on_meth = "centroid";
break;
case ONSET_METHOD_SPREAD:
on_meth = "spread";
break;
case ONSET_METHOD_SKEWNESS:
on_meth = "skewness";
break;
case ONSET_METHOD_KURTOSIS:
on_meth = "kurtosis";
break;
case ONSET_METHOD_SLOPE:
on_meth = "slope";
break;
case ONSET_METHOD_DECREASE:
on_meth = "decrease";
break;
case ONSET_METHOD_ROLLOFF:
on_meth = "rolloff";
break;
default:
on_meth = "default";
break;
}
plugin->o = new_aubio_onset (on_meth, PARAM_BUFFER_SIZE, PARAM_HOP_SIZE_ONSET, plugin->samplerate);
plugin->current_onset_method = new_onset_method;
}
if(0 <= new_pitch_method && 6 >= new_pitch_method &&
new_pitch_method != plugin->current_pitch_method){
del_aubio_pitch(plugin->pitch);
switch(new_pitch_method){
case PITCH_METHOD_MCOMB:
pi_meth = "mcomb";
break;
case PITCH_METHOD_YINFFT:
pi_meth = "yinfft";
break;
case PITCH_METHOD_YIN:
pi_meth = "yin";
break;
case PITCH_METHOD_SCHMITT:
pi_meth = "schmitt";
break;
case PITCH_METHOD_FCOMB:
pi_meth = "fcomb";
break;
case PITCH_METHOD_SPECACF:
pi_meth = "specacf";
break;
default:
pi_meth = "default";
break;
}
plugin->pitch = new_aubio_pitch (pi_meth, PARAM_BUFFER_SIZE * PARAM_PITCH_BUFF_TIMES, PARAM_HOP_SIZE_PITCH, plugin->samplerate);
// aubio_pitch_set_unit (plugin->pitch, plugin->pitch_unit);
plugin->current_pitch_method = new_pitch_method;
}
out_capacity = plugin->out->atom.size;
plugin->out->atom.type = plugin->atom_sequence;
lv2_atom_sequence_clear(plugin->out);
plugin->ibuf->data = (smpl_t *) plugin->in;
counter++;
if(counter++ >= PARAM_BUFFER_SIZE)
counter = 0;
plugin->process_block();
}
