2 Copyright (C) 2003-2013 Paul Brossier <piem@aubio.org>
4 This file is part of aubio.
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.
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.
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/>.
22 #define PROG_HAS_TEMPO 1
23 #define PROG_HAS_ONSET 1
24 #define PROG_HAS_OUTPUT 1
25 #define PROG_HAS_JACK 1
26 #include "parse_args.h"
28 aubio_tempo_t * tempo;
29 aubio_wavetable_t *wavetable;
32 uint_t is_silence = 0;
34 void process_block(fvec_t * ibuf, fvec_t *obuf) {
35 aubio_tempo_do (tempo, ibuf, tempo_out);
36 is_beat = fvec_get_sample (tempo_out, 0);
37 if (silence_threshold != -90.)
38 is_silence = aubio_silence_detection(ibuf, silence_threshold);
39 if ( !usejack && ! sink_uri ) return;
41 if ( is_beat && !is_silence ) {
42 aubio_wavetable_play ( wavetable );
43 /* send a midi tap (default to C0) out to the midi output */
44 if (usejack) send_noteon(miditap_note, miditap_velo);
46 aubio_wavetable_stop ( wavetable );
49 aubio_wavetable_do (wavetable, ibuf, obuf);
51 aubio_wavetable_do (wavetable, obuf, obuf);
54 void process_print (void) {
55 if ( is_beat && !is_silence ) {
56 print_time (aubio_tempo_get_last (tempo));
61 int main(int argc, char **argv) {
62 // override general settings from utils.c
66 examples_common_init(argc,argv);
68 verbmsg ("using source: %s at %dHz\n", source_uri, samplerate);
70 verbmsg ("tempo method: %s, ", tempo_method);
71 verbmsg ("buffer_size: %d, ", buffer_size);
72 verbmsg ("hop_size: %d, ", hop_size);
73 verbmsg ("threshold: %f\n", onset_threshold);
75 tempo_out = new_fvec(2);
76 tempo = new_aubio_tempo(tempo_method, buffer_size, hop_size, samplerate);
77 // set silence threshold very low to output beats even during silence
78 // aubio_tempo_set_silence(tempo, -1000.);
79 if (onset_threshold != 0.) aubio_tempo_set_threshold (tempo, onset_threshold);
81 wavetable = new_aubio_wavetable (samplerate, hop_size);
82 aubio_wavetable_set_freq ( wavetable, 2450.);
83 //aubio_sampler_load (sampler, "/archives/sounds/woodblock.aiff");
85 examples_common_process((aubio_process_func_t)process_block,process_print);
87 // send a last note off
88 send_noteon (miditap_note, 0);
90 del_aubio_tempo(tempo);
91 del_aubio_wavetable (wavetable);
94 examples_common_del();