calculateSpectralFlux()

float fl::audio::detector::TempoAnalyzer::calculateSpectralFlux ( const fft::Bins & fft )

private

Definition at line 133 of file tempo_analyzer.cpp.hpp.

                                                             {
    // Focus on low-to-mid frequencies for beat detection
    float flux = 0.0f;
    size numBins = fl::min(static_cast<size>(8), fft.raw().size());
    numBins = fl::min(numBins, mPreviousMagnitudes.size());
 
    for (size i = 0; i < numBins; i++) {
        float diff = fft.raw()[i] - mPreviousMagnitudes[i];
        if (diff > 0.0f) {
            flux += diff;
        }
    }
 
    return flux / static_cast<float>(numBins);
}

References fl::min(), and mPreviousMagnitudes.

Referenced by update().

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