/usr/include/CLAM/FundFreqDetect.hxx is in libclam-dev 1.4.0-7.
This file is owned by root:root, with mode 0o644.
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* Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)
* UNIVERSITAT POMPEU FABRA
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef _FundFreqDetect__
#define _FundFreqDetect__
#include <typeinfo>
#include "DataTypes.hxx"
#include "Processing.hxx"
#include "Array.hxx"
#include "FundFreqDetectConfig.hxx"
#include "InPort.hxx"
#include "OutPort.hxx"
#include "OutControl.hxx"
#include "Array.hxx"
namespace CLAM {
class Storage;
class ProcessingConfig;
class Fundamental;
class SpectralPeakArray;
class IndexArray;
/** This class estimates a fundamental frequency value
* in the spectral domain for one single spectral Frame.
* The input is a set of spectral peaks stored in the class CLAM::SpectralPeakArray
* The number of candidates is given by the CLAM::Fundamental object
* using the attribute nMaxCandidate.
* This implementation is based in the Two-Way Mismatch algorithm
* proposed by Maher and Beauchamp (JASA vol 95. pp. 2254-2263 1993).
* @author emilia.gomez@iua.upf.es
* @see Fundamental SpectralPeakArray
*/
class FundFreqDetect: public Processing {
mutable FundFreqDetectConfig mConfig;
const char *GetClassName() const {return "FundFreqDetect";}
bool ConcreteConfigure(const ProcessingConfig&);
InPort<SpectralPeakArray> mInput;
OutPort<Fundamental> mOutput;
FloatOutControl mFundFreqValue;
public:
FundFreqDetect();
FundFreqDetect(const FundFreqDetectConfig &c);
~FundFreqDetect();
const ProcessingConfig &GetConfig() const;
bool Do(void);
/** Do function */
bool Do(SpectralPeakArray& input,Fundamental& fund);
private:
inline TData WeightCandidate(TData freq, const SpectralPeakArray&, const DataArray& magFactor, const DataArray& magFactor34q,
const DataArray& magFactor4r,int maxNMP, int maxNPM) const;
inline int GetClosestPeak(TData freq, int firstPeak, const IndexArray & peakIndexes, const DataArray & peakFrequencies) const;
inline TData GetClosestHarmonic(TData peak, TData fundfreq, TData oneOverFundFreq) const;
inline bool IsGoodCandidate(TData freq) const;
/** Maximum number of candidates*/
TData mnMaxCandidates;
/** Reference Fundamental Frequency */
TData mReferenceFundFreq;
TData mLowestFundFreq;
TData mHighestFundFreq;
/** Max magnitude offset allowed between candidates (30 dB default) */
TData mMaxCandMagDiff;
/** Maximun TWM error accepted (10 default) */
TData mMaxFundFreqError;
/** Number of integer frequency ratios considered (5 by default) as candidates */
TSize mnInt;
/** Parameters to weight candidates */
/** Harmonic Error Constants */
TData mPMp, mPMq, mPMr, mMPp, mMPq, mMPr; // default values :0.5, 1.4, 0.5, 0.5, 1.4, 0.5
TSize mPMnPeaks, mMPnPeaks; // Harmonic peaks to weight error, 10 by default
TData mPMCont, mMPCont; // Harmonic error contributions. Default: 1, 1
};
} // namespace CLAM
#endif // _FUNFREQ_DETECT_
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