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/>.
21 #define AUBIO_UNSTABLE 1 // for fvec_median
23 #define PROG_HAS_PITCH 1
24 #define PROG_HAS_ONSET 1
25 #include "parse_args.h"
41 /** append new note candidate to the note_buffer and return filtered value. we
42 * need to copy the input array as fvec_median destroy its input data.*/
43 void note_append (fvec_t * note_buffer, smpl_t curnote);
44 uint_t get_note (fvec_t * note_buffer, fvec_t * note_buffer2);
47 process_block(fvec_t *ibuf, fvec_t *obuf) {
49 aubio_onset_do(o, ibuf, onset);
51 aubio_pitch_do (pitch, ibuf, pitch_obuf);
52 smpl_t new_pitch = fvec_read_sample(pitch_obuf, 0);
54 note_append(note_buffer, new_pitch);
57 /* curlevel is negatif or 1 if silence */
58 smpl_t curlevel = aubio_level_detection(ibuf, silence);
59 if (fvec_read_sample(onset, 0)) {
60 /* test for silence */
62 if (median) isready = 0;
64 send_noteon(curnote,0);
70 send_noteon(curnote,0);
71 /* get and send new one */
72 send_noteon(new_pitch,127+(int)floor(curlevel));
80 if (isready == median)
83 send_noteon(curnote,0);
84 newnote = get_note(note_buffer, note_buffer2);
86 /* get and send new one */
88 send_noteon(curnote,127+(int)floor(curlevel));
96 process_print (void) {
97 //if (verbose) outmsg("%f\n",pitch_obuf->data[0]);
101 note_append (fvec_t * note_buffer, smpl_t curnote)
104 for (i = 0; i < note_buffer->length - 1; i++) {
105 note_buffer->data[i] = note_buffer->data[i + 1];
107 note_buffer->data[note_buffer->length - 1] = curnote;
112 get_note (fvec_t * note_buffer, fvec_t * note_buffer2)
115 for (i = 0; i < note_buffer->length; i++) {
116 note_buffer2->data[i] = note_buffer->data[i];
118 return fvec_median (note_buffer2);
121 int main(int argc, char **argv) {
122 examples_common_init(argc,argv);
124 verbmsg ("using source: %s at %dHz\n", source_uri, samplerate);
126 verbmsg ("onset method: %s, ", onset_method);
127 verbmsg ("buffer_size: %d, ", buffer_size);
128 verbmsg ("hop_size: %d, ", hop_size);
129 verbmsg ("threshold: %f\n", onset_threshold);
131 verbmsg ("pitch method: %s, ", pitch_method);
132 verbmsg ("buffer_size: %d, ", buffer_size * 4);
133 verbmsg ("hop_size: %d, ", hop_size);
134 verbmsg ("tolerance: %f\n", pitch_tolerance);
136 o = new_aubio_onset (onset_method, buffer_size, hop_size, samplerate);
137 if (onset_threshold != 0.) aubio_onset_set_threshold (o, onset_threshold);
138 onset = new_fvec (1);
140 pitch = new_aubio_pitch (pitch_method, buffer_size * 4, hop_size, samplerate);
141 if (pitch_tolerance != 0.) aubio_pitch_set_tolerance (pitch, pitch_tolerance);
142 pitch_obuf = new_fvec (1);
145 note_buffer = new_fvec (median);
146 note_buffer2 = new_fvec (median);
149 examples_common_process((aubio_process_func_t)process_block, process_print);
151 // send a last note off
152 send_noteon (curnote, 0);
154 del_aubio_pitch (pitch);
156 del_fvec (note_buffer);
157 del_fvec (note_buffer2);
159 del_fvec (pitch_obuf);
161 examples_common_del();