calculateArousal()

float fl::audio::detector::MoodAnalyzer::calculateArousal ( float rms, float zcr, float flux )

private

Definition at line 183 of file mood_analyzer.cpp.hpp.

                                                                                  {
    // Arousal estimation based on energy and dynamics
    // Higher energy and more change = higher arousal
    // Lower energy and less change = lower arousal
 
    // Normalize RMS (assuming typical range 0-1)
    float normalizedRMS = fl::min(1.0f, rms);
 
    // Normalize ZCR (assuming typical range 0-1)
    float normalizedZCR = fl::min(1.0f, zcr);
 
    // Normalize flux (assuming typical range 0-10)
    float normalizedFlux = fl::min(1.0f, flux / 10.0f);
 
    // Combine into arousal (0 to 1)
    float arousal = normalizedRMS * 0.5f + normalizedZCR * 0.2f + normalizedFlux * 0.3f;
 
    // Clamp to valid range
    return fl::max(0.0f, fl::min(1.0f, arousal));
}

References fl::FL_NO_EXCEPT, fl::max(), fl::min(), and rms().

Referenced by update().

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