findBestPeakLag() [2/2]

int fl::audio::detector::Pitch::findBestPeakLag ( const vector< float > & autocorr ) const

private

Definition at line 151 of file pitch.cpp.hpp.

                                                              {
    // Find the lag with maximum autocorrelation value
    // (excluding lag 0, which is always maximum by definition)
 
    float maxValue = -1.0f;
    int bestLag = 0;
 
    for (int lag = mMinPeriod; lag <= mMaxPeriod && lag < static_cast<int>(autocorr.size()); lag++) {
        float value = autocorr[static_cast<size>(lag)];
 
        // Look for positive peaks
        if (value > maxValue && value > 0.0f) {
            maxValue = value;
            bestLag = lag;
        }
    }
 
    return bestLag;
}

References mMinPeriod, fl::vector_basic::size(), and fl::type_rank< T >::value.

Referenced by calculateAutocorrelation().

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