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von raredesign | Dez 3, 2019 | Allgemein | 0 Kommentare
Cokiee Shell
| Current Path : /proc/self/root/usr/include/CLAM/ |
| Current File : //proc/self/root/usr/include/CLAM/SpectralShapeShift.hxx |
/*
* 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 _SpectralShapeShift_
#define _SpectralShapeShift_
#include "SpectralEnvelopeExtract.hxx"
#include "SpectralEnvelopeApply.hxx"
#include "Frame.hxx"
#include "FDCombFilter.hxx"
#include "InPort.hxx"
#include "OutPort.hxx"
#include "InControl.hxx"
#include "FrameTransformation.hxx"
#include "FrameTransformationConfig.hxx"
#include "SegmentTransformationConfig.hxx"
#include "SpectralPeakDetect.hxx"
namespace CLAM{
/**
* Pitch shift with timbre preservation using the SMS model. In order to preserve timbre,
* the original spectral shape is extracted and then applied back.
*/
class SpectralShapeShift: public FrameTransformationTmpl<Spectrum>
{
const char *GetClassName() const {return "SpectralShapeShift";}
InPort<Spectrum> mIn;
OutPort<Spectrum> mOut;
FloatInControl mSteps;
public:
SpectralShapeShift()
:
mIn( "InSpectrum", this),
mOut( "OutSpectrum", this),
mSteps("Shift Steps", this)
{
Configure( SegmentTransformationConfig() );
mSpectralRange=22050; //default
mSpectralPeaks.AddAll();
mSpectralPeaks.UpdateData();
mSpectralPeaks.SetScale(EScale::eLog);
mSpectralEnvelope.AddAll();
mSpectralEnvelope.UpdateData();
SpectralPeakDetectConfig cfg;
cfg.SetMagThreshold(-80.f);
cfg.SetMaxPeaks(200);
cfg.SetMaxFreq(15000.f);
mSpectralPeakDetect.Configure(cfg);
SpectralEnvelopeExtractConfig envCfg;
envCfg.SetMaxPeaks(1000);
mSpectralEnvelopeExtract.Configure(envCfg);
}
~SpectralShapeShift() {}
bool Do(const Frame& in, Frame& out)
{
return Do(in.GetSpectrum(),
out.GetSpectrum());
}
bool Do(const Spectrum& inpeaks,Spectrum& out);
bool Do()
{
bool result = Do(mIn.GetData(), mOut.GetData());
mIn.Consume();
mOut.Produce();
return result;
}
private:
SpectralEnvelopeExtract mSpectralEnvelopeExtract;
SpectralEnvelopeApply mSpectralEnvelopeApply;
SpectralPeakDetect mSpectralPeakDetect;
Spectrum mSpectralEnvelope;
Spectrum mLogSpectrum;
SpectralPeakArray mSpectralPeaks;
TSize mSpectralRange;
};
} //namespace CLAM
#endif // _SpectralShapeShift_
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