1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
4 Vamp feature extraction plugins using Paul Brossier's Aubio library.
6 Centre for Digital Music, Queen Mary, University of London.
7 This file copyright 2006 Chris Cannam.
9 This program is free software; you can redistribute it and/or
10 modify it under the terms of the GNU General Public License as
11 published by the Free Software Foundation; either version 2 of the
12 License, or (at your option) any later version. See the file
13 COPYING included with this distribution for more information.
25 Notes::Notes(float inputSampleRate) :
26 Plugin(inputSampleRate),
33 m_onsettype(aubio_onset_complex),
35 m_pitchtype(aubio_pitch_yinfft),
36 m_pitchmode(aubio_pitchm_freq),
45 if (m_onsetdet) aubio_onsetdetection_free(m_onsetdet);
46 if (m_pitchdet) del_aubio_pitchdetection(m_pitchdet);
47 if (m_ibuf) del_fvec(m_ibuf);
48 if (m_onset) del_fvec(m_onset);
49 if (m_fftgrain) del_cvec(m_fftgrain);
50 if (m_pv) del_aubio_pvoc(m_pv);
51 if (m_peakpick) del_aubio_peakpicker(m_peakpick);
55 Notes::getName() const
61 Notes::getDescription() const
63 return "Aubio Note Tracker";
67 Notes::getMaker() const
69 return "Paul Brossier (plugin by Chris Cannam)";
73 Notes::getPluginVersion() const
79 Notes::getCopyright() const
85 Notes::initialise(size_t channels, size_t stepSize, size_t blockSize)
87 m_channelCount = channels;
88 m_stepSize = stepSize;
89 m_blockSize = blockSize;
91 size_t processingBlockSize;
92 if (m_onsettype == aubio_onset_energy ||
93 m_onsettype == aubio_onset_hfc) {
94 processingBlockSize = stepSize * 2;
96 processingBlockSize = stepSize * 4;
99 m_ibuf = new_fvec(stepSize, channels);
100 m_onset = new_fvec(1, channels);
101 m_fftgrain = new_cvec(processingBlockSize, channels);
102 m_pv = new_aubio_pvoc(processingBlockSize, stepSize, channels);
103 m_peakpick = new_aubio_peakpicker(m_threshold);
105 m_onsetdet = new_aubio_onsetdetection(m_onsettype, processingBlockSize, channels);
107 m_pitchdet = new_aubio_pitchdetection(processingBlockSize * 4,
110 lrintf(m_inputSampleRate),
115 m_delay = Vamp::RealTime::frame2RealTime((4 + m_median) * m_stepSize,
116 lrintf(m_inputSampleRate));
117 m_currentOnset = Vamp::RealTime::zeroTime;
118 m_haveCurrent = false;
129 Notes::getPreferredStepSize() const
135 Notes::getPreferredBlockSize() const
137 return 4 * getPreferredStepSize();
141 Notes::getParameterDescriptors() const
145 ParameterDescriptor desc;
146 desc.name = "onsettype";
147 desc.description = "Onset Detection Function Type";
150 desc.defaultValue = (int)aubio_onset_complex;
151 desc.isQuantized = true;
152 desc.quantizeStep = 1;
153 desc.valueNames.push_back("Energy Based");
154 desc.valueNames.push_back("Spectral Difference");
155 desc.valueNames.push_back("High-Frequency Content");
156 desc.valueNames.push_back("Complex Domain");
157 desc.valueNames.push_back("Phase Deviation");
158 desc.valueNames.push_back("Kullback-Liebler");
159 desc.valueNames.push_back("Modified Kullback-Liebler");
160 list.push_back(desc);
162 desc = ParameterDescriptor();
163 desc.name = "pitchtype";
164 desc.description = "Pitch Detection Function Type";
167 desc.defaultValue = (int)aubio_pitch_yinfft;
168 desc.isQuantized = true;
169 desc.quantizeStep = 1;
170 desc.valueNames.push_back("YIN Frequency Estimator");
171 desc.valueNames.push_back("Spectral Comb");
172 desc.valueNames.push_back("Schmitt");
173 desc.valueNames.push_back("Fast Harmonic Comb");
174 desc.valueNames.push_back("YIN with FFT");
175 list.push_back(desc);
177 desc = ParameterDescriptor();
178 desc.name = "peakpickthreshold";
179 desc.description = "Peak Picker Threshold";
182 desc.defaultValue = 0.3;
183 desc.isQuantized = false;
184 list.push_back(desc);
186 desc = ParameterDescriptor();
187 desc.name = "silencethreshold";
188 desc.description = "Silence Threshold";
189 desc.minValue = -120;
191 desc.defaultValue = -90;
193 desc.isQuantized = false;
194 list.push_back(desc);
200 Notes::getParameter(std::string param) const
202 if (param == "onsettype") {
204 } else if (param == "pitchtype") {
206 } else if (param == "peakpickthreshold") {
208 } else if (param == "silencethreshold") {
216 Notes::setParameter(std::string param, float value)
218 if (param == "onsettype") {
219 switch (lrintf(value)) {
220 case 0: m_onsettype = aubio_onset_energy; break;
221 case 1: m_onsettype = aubio_onset_specdiff; break;
222 case 2: m_onsettype = aubio_onset_hfc; break;
223 case 3: m_onsettype = aubio_onset_complex; break;
224 case 4: m_onsettype = aubio_onset_phase; break;
225 case 5: m_onsettype = aubio_onset_kl; break;
226 case 6: m_onsettype = aubio_onset_mkl; break;
228 } else if (param == "pitchtype") {
229 switch (lrintf(value)) {
230 case 0: m_pitchtype = aubio_pitch_yin; break;
231 case 1: m_pitchtype = aubio_pitch_mcomb; break;
232 case 2: m_pitchtype = aubio_pitch_schmitt; break;
233 case 3: m_pitchtype = aubio_pitch_fcomb; break;
234 case 4: m_pitchtype = aubio_pitch_yinfft; break;
236 } else if (param == "peakpickthreshold") {
238 } else if (param == "silencethreshold") {
244 Notes::getOutputDescriptors() const
251 d.description = "Notes";
252 d.hasFixedBinCount = true;
254 d.binNames.push_back("Frequency");
255 d.binNames.push_back("Duration");
256 d.binNames.push_back("Velocity");
257 d.hasKnownExtents = false;
258 d.isQuantized = false;
259 d.sampleType = OutputDescriptor::VariableSampleRate;
267 Notes::process(float **inputBuffers, Vamp::RealTime timestamp)
269 for (size_t i = 0; i < m_stepSize; ++i) {
270 for (size_t j = 0; j < m_channelCount; ++j) {
271 fvec_write_sample(m_ibuf, inputBuffers[j][i], j, i);
275 aubio_pvoc_do(m_pv, m_ibuf, m_fftgrain);
276 aubio_onsetdetection(m_onsetdet, m_fftgrain, m_onset);
278 bool isonset = aubio_peakpick_pimrt(m_onset, m_peakpick);
280 float frequency = aubio_pitchdetection(m_pitchdet, m_ibuf);
282 m_notebuf.push_back(frequency);
283 if (m_notebuf.size() > m_median) m_notebuf.pop_front();
285 float level = aubio_level_detection(m_ibuf, m_silence);
287 FeatureSet returnFeatures;
293 if (m_haveCurrent) pushNote(returnFeatures, timestamp);
298 if (m_count > 0) ++m_count;
299 if (m_count == m_median) {
300 if (m_haveCurrent) pushNote(returnFeatures, timestamp);
301 m_currentOnset = timestamp;
302 m_currentLevel = level;
303 m_haveCurrent = true;
307 m_lastTimeStamp = timestamp;
308 return returnFeatures;
312 Notes::getRemainingFeatures()
314 FeatureSet returnFeatures;
315 if (m_haveCurrent) pushNote(returnFeatures, m_lastTimeStamp);
316 return returnFeatures;
320 Notes::pushNote(FeatureSet &fs, const Vamp::RealTime &offTime)
322 std::deque<float> toSort = m_notebuf;
323 std::sort(toSort.begin(), toSort.end());
324 float median = toSort[toSort.size()/2];
325 if (median < 45.0) return;
328 feature.hasTimestamp = true;
329 if (m_currentOnset < m_delay) m_currentOnset = m_delay;
330 feature.timestamp = m_currentOnset - m_delay;
331 feature.values.push_back(median);
332 // feature.values.push_back(FLOOR(aubio_freqtomidi(median) + 0.5));
333 feature.values.push_back
334 (Vamp::RealTime::realTime2Frame(offTime, lrintf(m_inputSampleRate)) -
335 Vamp::RealTime::realTime2Frame(m_currentOnset, lrintf(m_inputSampleRate)));
336 feature.values.push_back(m_currentLevel);
337 fs[0].push_back(feature);