Method calculateSpectralCentroid

src/fl/audio/detector/mood_analyzer.cpp.hpp:113–124

}

float MoodAnalyzer::calculateSpectralCentroid(const fft::Bins& fft) {
    float weightedSum = 0.0f;
    float magnitudeSum = 0.0f;

    for (size_t i = 0; i < fft.raw().size(); i++) {
        float magnitude = fft.raw()[i];
        weightedSum += i * magnitude;
        magnitudeSum += magnitude;
    }

    return (magnitudeSum < 1e-6f) ? 0.0f : weightedSum / magnitudeSum;
}

float MoodAnalyzer::calculateSpectralRolloff(const fft::Bins& fft, float threshold) {
    float totalEnergy = 0.0f;