calculateSpectralFlux()

float fl::audio::detector::MoodAnalyzer::calculateSpectralFlux ( const fft::Bins & fft, const fft::Bins * prevFFT )

private

Definition at line 148 of file mood_analyzer.cpp.hpp.

                                                                                    {
    if (!prevFFT || prevFFT->raw().size() != fft.raw().size()) {
        return 0.0f;
    }
 
    float flux = 0.0f;
    for (size_t i = 0; i < fft.raw().size(); i++) {
        float diff = fft.raw()[i] - prevFFT->raw()[i];
        flux += diff * diff;
    }
 
    return fl::sqrt(flux);
}

References fl::audio::fft::Bins::raw(), and fl::sqrt().

Referenced by update().

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