Method getTrebleEnergy

src/fl/audio/detector/drop.cpp.hpp:136–148

}

float DropDetector::getTrebleEnergy(const fft::Bins& fft) const {
    // Treble = top 25% of bins (high frequencies)
    int startBin = static_cast<int>(fft.raw().size() * 3 / 4);
    float energy = 0.0f;
    int count = 0;

    for (fl::size i = startBin; i < fft.raw().size(); i++) {
        energy += fft.raw()[i];
        count++;
    }

    return (count > 0) ? energy / static_cast<float>(count) : 0.0f;
}

float DropDetector::calculateSpectralNovelty(float bass, float mid, float treble) const {
    // Calculate how much the spectrum changed from previous frame