source: examples/aubiotrack.c @ af2146c

feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5pitchshiftsamplertimestretchyinfft+
Last change on this file since af2146c was ce6f652, checked in by Paul Brossier <piem@piem.org>, 9 years ago

src/tempo/tempo.c: add silence detection (closes #23), add old behavior in examples/aubiotrack.c

  • Property mode set to 100644
File size: 2.6 KB
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1/*
2  Copyright (C) 2003-2013 Paul Brossier <piem@aubio.org>
3
4  This file is part of aubio.
5
6  aubio is free software: you can redistribute it and/or modify
7  it under the terms of the GNU General Public License as published by
8  the Free Software Foundation, either version 3 of the License, or
9  (at your option) any later version.
10
11  aubio is distributed in the hope that it will be useful,
12  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  GNU General Public License for more details.
15
16  You should have received a copy of the GNU General Public License
17  along with aubio.  If not, see <http://www.gnu.org/licenses/>.
18
19*/
20
21#include "utils.h"
22#define PROG_HAS_TEMPO 1
23#define PROG_HAS_OUTPUT 1
24#define PROG_HAS_JACK 1
25#include "parse_args.h"
26
27aubio_tempo_t * tempo;
28aubio_wavetable_t *wavetable;
29fvec_t * tempo_out;
30smpl_t is_beat = 0;
31uint_t is_silence = 0.;
32
33void process_block(fvec_t * ibuf, fvec_t *obuf) {
34  aubio_tempo_do (tempo, ibuf, tempo_out);
35  is_beat = fvec_get_sample (tempo_out, 0);
36  if (silence_threshold != -90.)
37    is_silence = aubio_silence_detection(ibuf, silence_threshold);
38  if ( !usejack && ! sink_uri ) return;
39  fvec_zeros (obuf);
40  if ( is_beat && !is_silence ) {
41    aubio_wavetable_play ( wavetable );
42  } else {
43    aubio_wavetable_stop ( wavetable );
44  }
45  if (mix_input)
46    aubio_wavetable_do (wavetable, ibuf, obuf);
47  else
48    aubio_wavetable_do (wavetable, obuf, obuf);
49}
50
51void process_print (void) {
52  if ( is_beat && !is_silence ) {
53    outmsg("%f\n", aubio_tempo_get_last_s(tempo) );
54  }
55}
56
57int main(int argc, char **argv) {
58  // override general settings from utils.c
59  buffer_size = 1024;
60  hop_size = 512;
61
62  examples_common_init(argc,argv);
63
64  verbmsg ("using source: %s at %dHz\n", source_uri, samplerate);
65
66  verbmsg ("tempo method: %s, ", tempo_method);
67  verbmsg ("buffer_size: %d, ", buffer_size);
68  verbmsg ("hop_size: %d, ", hop_size);
69  verbmsg ("threshold: %f\n", onset_threshold);
70
71  tempo_out = new_fvec(2);
72  tempo = new_aubio_tempo(tempo_method, buffer_size, hop_size, samplerate);
73  // set silence threshold very low to output beats even during silence
74  // aubio_tempo_set_silence(tempo, -1000.);
75  if (onset_threshold != 0.) aubio_tempo_set_threshold (tempo, onset_threshold);
76
77  wavetable = new_aubio_wavetable (samplerate, hop_size);
78  aubio_wavetable_set_freq ( wavetable, 2450.);
79  //aubio_sampler_load (sampler, "/archives/sounds/woodblock.aiff");
80
81  examples_common_process((aubio_process_func_t)process_block,process_print);
82
83  del_aubio_tempo(tempo);
84  del_aubio_wavetable (wavetable);
85  del_fvec(tempo_out);
86
87  examples_common_del();
88  return 0;
89}
90
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