Method doLock

PhaseLock/Source/PhaseLockFFTProcessor.cpp:32–101

}

void PhaseLockFFTProcessor::doLock(int bins, const PolarVector &in, PolarVector &out) {
    if (m_lockPhaseState.shouldTransitionToOn()) {
        m_lockedPhases.clear();
        for (size_t i = 0; i < static_cast<size_t>(bins); ++i) {
            m_lockedPhases.push_back(in[i].m_phase);
        }
        
        m_lockPhaseState.completeTransitionToOn();
    }
    
    if (m_lockMagState.shouldTransitionToOn()) {
        m_lockedMag.clear();
        for (size_t i = 0; i < static_cast<size_t>(bins); ++i) {
            m_lockedMag.push_back(in[i].m_mag);
        }
        
        m_lockMagState.completeTransitionToOn();
    }
    
    float maxMag = 0.f;
    
    for(auto& inBin : in) {
        if(inBin.m_mag > maxMag) {
            maxMag = inBin.m_mag;
        }
    }
    
    float maxLockedMag = 0.1f;
    for(auto& lockedBin : m_lockedMag) {
        if(lockedBin > maxLockedMag) {
            maxLockedMag = lockedBin;
        }
    }
    
    float scale = maxMag / maxLockedMag;
    scale = scale + (-(scale - 1.f) * (1.0f - m_magTrack));
    float magMix = m_magMix;
    float randPhaseMix = m_randomPhaseMix;
    
    if(m_lockPhaseState.isOn() && m_lockMagState.isOn()) {
        for (size_t i = 0; i < static_cast<size_t>(bins); ++i) {
            float inPhase = in[i].m_phase;
            out[i].m_phase = inPhase + ((m_lockedPhases.at(i) - inPhase) * m_phaseMix);
            
            float inMag = in[i].m_mag;
            out[i].m_mag = (inMag + ((m_lockedMag.at(i) - inMag) * magMix)) * scale;
            out[i].m_phase = ( randPhaseMix * phaseLockGenerateRandomNumber()) + ((1.f - randPhaseMix) * out[i].m_phase); }
    }
    else if(m_lockPhaseState.isOn() && m_lockMagState.isOff()) {
        for (size_t i = 0; i < static_cast<size_t>(bins); ++i) {
            out[i] = in[i];
            float inPhase = in[i].m_phase;
            out[i].m_phase = inPhase + ((m_lockedPhases.at(i) - inPhase) * m_phaseMix);
            out[i].m_phase = ( randPhaseMix * phaseLockGenerateRandomNumber()) + ((1.f - randPhaseMix) * out[i].m_phase);
        }
    }
    else if(m_lockPhaseState.isOff() && m_lockMagState.isOn()) {
        for (size_t i = 0; i < static_cast<size_t>(bins); ++i) {