2 Copyright (C) 2014 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 #include "aubio_priv.h"
23 #include "pitch/pitch.h"
24 #include "onset/onset.h"
25 #include "notes/notes.h"
27 #define AUBIO_DEFAULT_NOTES_SILENCE -70.
28 // increase to 10. for .1 cent precision
29 // or to 100. for .01 cent precision
30 #define AUBIO_DEFAULT_CENT_PRECISION 1.
31 #define AUBIO_DEFAULT_NOTES_MINIOI_MS 30.
33 struct _aubio_notes_t {
35 uint_t onset_buf_size;
36 uint_t pitch_buf_size;
47 smpl_t pitch_tolerance;
51 smpl_t onset_threshold;
56 smpl_t silence_threshold;
61 aubio_notes_t * new_aubio_notes (const char_t * method,
62 uint_t buf_size, uint_t hop_size, uint_t samplerate) {
63 aubio_notes_t *o = AUBIO_NEW(aubio_notes_t);
65 const char_t * onset_method = "default";
66 const char_t * pitch_method = "default";
68 o->onset_buf_size = buf_size;
69 o->pitch_buf_size = buf_size * 4;
70 o->hop_size = hop_size;
72 o->onset_threshold = 0.;
73 o->pitch_tolerance = 0.;
75 o->samplerate = samplerate;
81 o->onset = new_aubio_onset (onset_method, o->onset_buf_size, o->hop_size, o->samplerate);
82 if (o->onset_threshold != 0.) aubio_onset_set_threshold (o->onset, o->onset_threshold);
83 o->onset_output = new_fvec (1);
85 o->pitch = new_aubio_pitch (pitch_method, o->pitch_buf_size, o->hop_size, o->samplerate);
86 if (o->pitch_tolerance != 0.) aubio_pitch_set_tolerance (o->pitch, o->pitch_tolerance);
87 aubio_pitch_set_unit (o->pitch, "midi");
88 o->pitch_output = new_fvec (1);
90 if (strcmp(method, "default") != 0) {
91 AUBIO_ERR("notes: unknown notes detection method \"%s\"\n", method);
94 o->note_buffer = new_fvec(o->median);
95 o->note_buffer2 = new_fvec(o->median);
100 aubio_notes_set_silence(o, AUBIO_DEFAULT_NOTES_SILENCE);
101 aubio_notes_set_minioi_ms (o, AUBIO_DEFAULT_NOTES_MINIOI_MS);
110 uint_t aubio_notes_set_silence(aubio_notes_t *o, smpl_t silence)
112 uint_t err = AUBIO_OK;
113 if (aubio_pitch_set_silence(o->pitch, silence) != AUBIO_OK) {
116 if (aubio_onset_set_silence(o->onset, silence) != AUBIO_OK) {
119 o->silence_threshold = silence;
123 smpl_t aubio_notes_get_silence(const aubio_notes_t *o)
125 return aubio_pitch_get_silence(o->pitch);
128 uint_t aubio_notes_set_minioi_ms (aubio_notes_t *o, smpl_t minioi_ms)
130 uint_t err = AUBIO_OK;
131 if (!o->onset || (aubio_onset_set_minioi_ms(o->onset, minioi_ms) != 0)) {
137 smpl_t aubio_notes_get_minioi_ms(const aubio_notes_t *o)
139 return aubio_onset_get_minioi_ms(o->onset);
142 /** append new note candidate to the note_buffer and return filtered value. we
143 * need to copy the input array as fvec_median destroy its input data.*/
145 note_append (fvec_t * note_buffer, smpl_t curnote)
148 for (i = 0; i < note_buffer->length - 1; i++) {
149 note_buffer->data[i] = note_buffer->data[i + 1];
151 //note_buffer->data[note_buffer->length - 1] = ROUND(10.*curnote)/10.;
152 note_buffer->data[note_buffer->length - 1] = ROUND(AUBIO_DEFAULT_CENT_PRECISION*curnote);
157 aubio_notes_get_latest_note (aubio_notes_t *o)
159 fvec_copy(o->note_buffer, o->note_buffer2);
160 return fvec_median (o->note_buffer2) / AUBIO_DEFAULT_CENT_PRECISION;
164 void aubio_notes_do (aubio_notes_t *o, const fvec_t * input, fvec_t * notes)
166 smpl_t new_pitch, curlevel;
168 aubio_onset_do(o->onset, input, o->onset_output);
170 aubio_pitch_do (o->pitch, input, o->pitch_output);
171 new_pitch = o->pitch_output->data[0];
173 note_append(o->note_buffer, new_pitch);
176 /* curlevel is negatif or 1 if silence */
177 curlevel = aubio_level_detection(input, o->silence_threshold);
178 if (o->onset_output->data[0] != 0) {
179 /* test for silence */
180 if (curlevel == 1.) {
181 if (o->median) o->isready = 0;
183 //send_noteon(o->curnote,0);
184 //notes->data[0] = o->curnote;
185 //notes->data[1] = 0.;
186 notes->data[2] = o->curnote;
192 //send_noteon(o->curnote,0, o->samplerate);
193 notes->data[2] = o->curnote;
194 /* get and send new one */
195 //send_noteon(new_pitch,127+(int)floor(curlevel), o->samplerate);
196 notes->data[0] = new_pitch;
197 notes->data[1] = 127 + (int)floor(curlevel);
198 o->curnote = new_pitch;
205 if (o->isready == o->median)
208 //send_noteon(curnote,0);
209 notes->data[2] = o->curnote;
210 o->newnote = aubio_notes_get_latest_note(o);
211 o->curnote = o->newnote;
212 /* get and send new one */
214 //send_noteon(curnote,127+(int)floor(curlevel));
215 notes->data[0] = o->curnote;
216 notes->data[1] = 127 + (int) floor(curlevel);
223 void del_aubio_notes (aubio_notes_t *o) {
224 if (o->note_buffer) del_fvec(o->note_buffer);
225 if (o->note_buffer2) del_fvec(o->note_buffer2);
226 if (o->pitch_output) del_fvec(o->pitch_output);
227 if (o->pitch) del_aubio_pitch(o->pitch);
228 if (o->onset_output) del_fvec(o->onset_output);
229 if (o->onset) del_aubio_onset(o->onset);