static int aubio_process(smpl_t **input, smpl_t **output, int nframes) {
unsigned int i; /*channels*/
unsigned int j; /*frames*/
for (j=0;j<(unsigned)nframes;j++) {
if(usejack) {
/* write input to datanew */
fvec_write_sample(ibuf, input[0][j], pos);
/* put synthnew in output */
output[0][j] = fvec_read_sample(obuf, pos);
}
/*time for fft*/
if (pos == overlap_size-1) {
/* block loop */
aubio_onset_do (o, ibuf, onset);
if ( fvec_read_sample(onset, 0) ) {
fvec_copy (woodblock, obuf);
} else {
fvec_zeros (obuf);
}
/* end of block loop */
pos = -1; /* so it will be zero next j loop */
}
pos++;
}
return 1;
}
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 aubio_notes_do (aubio_notes_t *o, const fvec_t * input, fvec_t * notes)
{
smpl_t new_pitch, curlevel;
fvec_zeros(notes);
aubio_onset_do(o->onset, input, o->onset_output);
aubio_pitch_do (o->pitch, input, o->pitch_output);
new_pitch = o->pitch_output->data[0];
if(o->median){
note_append(o->note_buffer, new_pitch);
}
/* curlevel is negatif or 1 if silence */
curlevel = aubio_level_detection(input, o->silence_threshold);
if (o->onset_output->data[0] != 0) {
/* test for silence */
if (curlevel == 1.) {
if (o->median) o->isready = 0;
/* send note off */
//send_noteon(o->curnote,0);
//notes->data[0] = o->curnote;
//notes->data[1] = 0.;
notes->data[2] = o->curnote;
} else {
if (o->median) {
o->isready = 1;
} else {
/* kill old note */
//send_noteon(o->curnote,0, o->samplerate);
notes->data[2] = o->curnote;
/* get and send new one */
//send_noteon(new_pitch,127+(int)floor(curlevel), o->samplerate);
notes->data[0] = new_pitch;
notes->data[1] = 127 + (int)floor(curlevel);
o->curnote = new_pitch;
}
}
} else {
if (o->median) {
if (o->isready > 0)
o->isready++;
if (o->isready == o->median)
{
/* kill old note */
//send_noteon(curnote,0);
notes->data[2] = o->curnote;
o->newnote = aubio_notes_get_latest_note(o);
o->curnote = o->newnote;
/* get and send new one */
if (o->curnote>45){
//send_noteon(curnote,127+(int)floor(curlevel));
notes->data[0] = o->curnote;
notes->data[1] = 127 + (int) floor(curlevel);
}
}
} // if median
}
}
void Note2midi::process_block (){
smpl_t new_pitch, curlevel;
// fvec_zeros(obuf);
aubio_onset_do(o, ibuf, onset);
aubio_pitch_do (pitch, ibuf, pitch_obuf);
new_pitch = fvec_get_sample(pitch_obuf, 0);
if(median){
note_append(note_buffer, new_pitch);
}
/* curlevel is negatif or 1 if silence */
curlevel = aubio_level_detection(ibuf, *_silence_threshold);
if (fvec_get_sample(onset, 0)) {
/* test for silence */
if (curlevel == 1.) {
if (median) isready = 0;
/* send note off */
send_noteon(curnote, 0);
} else {
if (median) {
isready = 1;
} else {
/* kill old note */
send_noteon(curnote, 0);
/* get and send new one */
send_noteon(new_pitch, 127+(int)floor(curlevel));
curnote = new_pitch;
}
}
}
else {
if (median) {
if (isready > 0)
isready++;
if (isready == median){
/* kill old note */
send_noteon(curnote, 0);
newnote = get_note(note_buffer, note_buffer2);
curnote = newnote;
/* get and send new one */
if (curnote>45){
send_noteon(curnote, 127+(int)floor(curlevel));
}
}
} // if median
}
// lv2_atom_sequence_append_event(this->out, out_capacity, ¬e.event);
}
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);
}
