SinusoidalSynthesis.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 "SinusoidalSynthesis.hxx"

#include "SpectrumConfig.hxx"
#include "ProcessingFactory.hxx"



namespace CLAM
{

namespace Hidden
{
        static FactoryRegistrator<ProcessingFactory, SinusoidalSynthesis> regSinusoidalSynthesis("SinusoidalSynthesis");
}
        

void SinusoidalSynthesis::AttachChildren()
{
        mSinSpectralSynthesis.SetParent(this);
        mSynthSineSpectrum.SetParent(this);
        mPhaseMan.SetParent(this);
        mSpectrumAdder.SetParent(this);
        mOverlapAddSin.SetParent(this);
}

SinusoidalSynthesis::SinusoidalSynthesis(const SMSSynthesisConfig& cfg)
        : mInputSinSpectralPeaks("InputSinPeaks",this)
        , mOutputSpectrum("OutputSpectrum",this)
        , mOutputAudio("OutputAudio",this)
        , mCurrentTimeControl("CurrentTime",this)
        , mCurrentPitch("CurrentPitch",this)
{
        mCurrentFrame = 0;
        Configure(cfg);
        AttachChildren();
}

SinusoidalSynthesis::~SinusoidalSynthesis()
{
        
}

bool SinusoidalSynthesis::ConfigureChildren()
{
//      mConfig.SetSpectrumSize( mAudioFrame.GetSize()/2+1 );

        //configure sinusoidal spectral synthesis
        mConfig.GetSpectralSynth().SetResidual(false);
        if(!mSinSpectralSynthesis.Configure(mConfig.GetSpectralSynth()))
                return false;

        //SynthSineSpectrum
        if(!mSynthSineSpectrum.Configure(mConfig.GetSynthSineSpectrum()))
                return false;

        //Phase Management
        if(!mPhaseMan.Configure(mConfig.GetPhaseMan()))
                return false;

        mPhaseMan.Init();
        
        //Spectrum Adder
        if(!mSpectrumAdder.Configure(SpecAdder2Config()))
                return false;

        //Overlap and add PO
        if(!mOverlapAddSin.Configure(mConfig.GetOverlapAddSin()))
                return false;

        return true;
}

void SinusoidalSynthesis::ConfigureData()
{
        mAudioFrame.SetSize(mConfig.GetHopSize()*2);//audio used as input of the overlap and add
        mOutputAudio.SetSize( mAudioFrame.GetSize()/2 );

        mOutputAudio.SetHop( mConfig.GetHopSize() );

        mOutputSpectrum.GetData().SetSize( mAudioFrame.GetSize()/2+1);
        mOutputSinSpectrum.GetData().SetSize( mAudioFrame.GetSize()/2+1);
}


bool SinusoidalSynthesis::ConcreteConfigure(const ProcessingConfig& c)
{
        CopyAsConcreteConfig(mConfig, c);
        ConfigureChildren();
        ConfigureData();
        mCurrentTimeControl.DoControl(-1.0); 
        return true;
}

bool SinusoidalSynthesis::Do(void)
{
        bool result =  Do(mInputSinSpectralPeaks.GetData(),
                                                mOutputSpectrum.GetData(),
                                                mOutputAudio.GetAudio());

        mInputSinSpectralPeaks.Consume();

        mOutputSinSpectrum.Produce();
        mOutputSpectrum.Produce();
        mOutputAudio.Produce();

        return result;
}


bool SinusoidalSynthesis::Do(
                SpectralPeakArray& inputSinusoidalPeaks, 
                Audio& outputAudio)
{
        Spectrum tmpOutputSpec;
        // init its size since we'll operate with these spectrums
//      tmpOutputSinSpec.SetSize( inputResidualSpectrum.GetSize() );
        
        return Do(inputSinusoidalPeaks,tmpOutputSpec,outputAudio);

}

bool SinusoidalSynthesis::Do(
                SpectralPeakArray& inputSinusoidalPeaks,
                Spectrum& outputSpectrum,               //
                Audio& outputAudio)
{
        //First we do the phase managing. Note that if the Do(frame) overload is not used,
        //the time and pitch controls in this processing should be set by hand before this
        //method is used


//      mPhaseMan.mCurrentTime.DoControl(mCurrentTimeControl.GetLastValue()); //TODO used in SMSBase (Synth from segment)
        TData currentTime = 0;  
        if (mCurrentTimeControl.GetLastValue() < -0.9)
        {
                int framesize = outputAudio.GetSize();
                //TData samplerate = inputResidualSpectrum.GetSpectralRange()*2;
                TData samplerate = mConfig.GetSynthSineSpectrum().GetSamplingRate();
                currentTime =  TData( mCurrentFrame*framesize ) / samplerate;
        } 
        else 
        {
                currentTime = mCurrentTimeControl.GetLastValue();
        }
        mPhaseMan.mCurrentTime.DoControl( currentTime );
        mCurrentFrame ++;
        
        mPhaseMan.mCurrentPitch.DoControl(mCurrentPitch.GetLastValue());
        mPhaseMan.Do(inputSinusoidalPeaks);

        outputSpectrum.SetSize(mConfig.GetSpectrumSize());
        mSynthSineSpectrum.Do(inputSinusoidalPeaks,outputSpectrum);

        mSinSpectralSynthesis.Do(outputSpectrum, mAudioFrame);
        //Finally the overlap and add is accomplished
        
        mOverlapAddSin.Do(mAudioFrame, outputAudio);

        return true;
}

bool SinusoidalSynthesis::Do(Frame& in)
{
        if(in.GetCenterTime()<0) return false;//such frames should not be synthesized   
        
//We initialize input frame, adding necessary attributes
        InitFrame(in);
//First we set the controls sa  mCurrentTimeControl.DoControl(in.GetCenterTime());
        mCurrentPitch.DoControl(in.GetFundamental().GetFreq(0));
        

//We make sure that spectrums in input frame has the appropiate size and spectral range.
//Note that the only spectrum we can be sure has the correct spectral range is the residual 
//because it its the only one that has been stored in the analysis process.
        in.GetOutSpec().SetSize(mConfig.GetSpectrumSize());
        in.GetOutSpec().SetSpectralRange(in.GetResidualSpec().GetSpectralRange());
        in.GetSinusoidalSpec().SetSpectralRange(in.GetResidualSpec().GetSpectralRange());

        return Do(in.GetSpectralPeakArray(),in.GetOutSpec(),in.GetSynthAudioFrame());

}

bool SinusoidalSynthesis::Do(Segment& in)
{
        return Do(in.GetFrame(in.mCurrentFrameIndex++));
}


void SinusoidalSynthesis::InitFrame(Frame& in)
{
        in.AddOutSpec();
        in.AddSinusoidalSpec();
        in.AddSinusoidalAudioFrame();
        in.AddResidualAudioFrame();
        in.AddSynthAudioFrame();
        in.UpdateData();

        in.GetSinusoidalAudioFrame().SetSize(mConfig.GetFrameSize());
        in.GetResidualAudioFrame().SetSize(mConfig.GetFrameSize());
        in.GetSynthAudioFrame().SetSize(mConfig.GetFrameSize());
        
}

} // namespace CLAM