SMSGenderChange.cxx

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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
 *
 */

#include "SMSGenderChange.hxx"
#include "ProcessingFactory.hxx"

namespace CLAM
{

namespace Hidden
{
        static const char * metadata[] = {
                "key", "SMSGenderChange",
                "category", "SMS Transformations",
                "description", "SMSGenderChange",
                0
        };
        static FactoryRegistrator<ProcessingFactory, SMSGenderChange> reg = metadata;
}

bool SMSGenderChange::Do(const SpectralPeakArray& inPeaks, 
                                const Fundamental& inFund,
                                const Spectrum& inSpectrum, 
                                SpectralPeakArray& outPeaks,
                                Fundamental& outFund,
                                Spectrum& outSpectrum)
{

        //we only transform voiced frames
        if(!inFund.GetFreq(0))
        {
                outFund = inFund;
                outSpectrum = inSpectrum;
                outPeaks = inPeaks;
                return true;
        }
        TData minPitch = 100;
        TData maxPitch = 800;

        //Maximum spectral shift
        TData maxSss = 200;

        //amount for spectral shape shift
        TData sssAmount;

        TData pitch = inFund.GetFreq(0);

        if(pitch<minPitch) sssAmount = 0;
        else if (pitch>maxPitch) sssAmount = maxSss;
        else sssAmount = (pitch-minPitch) / ( (maxPitch-minPitch)/maxSss);
        TData pitchTransposition=2;

        bool femaleToMale = mControl.GetLastValue()>0;
        if(femaleToMale)
        {
                // Invert the transformations
                sssAmount = -sssAmount;
                pitchTransposition=1/pitchTransposition;
        }

        SendFloatToInControl(mSpectralShapeShift,"Shift Steps",sssAmount);
        SendFloatToInControl(mPitchShift,"PitchSteps",pitchTransposition);

        SpectralPeakArray tmpSpectralPeaks;
        mSpectralShapeShift.Do(inPeaks,tmpSpectralPeaks);
        mPitchShift.Do( tmpSpectralPeaks, inFund, inSpectrum, 
                        outPeaks, outFund, outSpectrum);
        return true;
}

bool SMSGenderChange::Do(const Frame& in, Frame& out)
{
        return Do( in.GetSpectralPeakArray(),
                                in.GetFundamental(), 
                                in.GetResidualSpec(), 
                                out.GetSpectralPeakArray(),
                                out.GetFundamental(), 
                                out.GetResidualSpec() 
                                );

}


}