updateBackbeatProfile()

void fl::audio::detector::Backbeat::updateBackbeatProfile ( const fft::Bins & fft )

private

Definition at line 380 of file backbeat.cpp.hpp.

                                                       {
    // Update spectral profile using exponential moving average
    // This learns the typical frequency content of backbeats
 
    size profileSize = fl::min(mBackbeatSpectralProfile.size(), fft.raw().size());
 
    for (size i = 0; i < profileSize; i++) {
        // EMA: profile = alpha * new + (1 - alpha) * old
        mBackbeatSpectralProfile[i] =
            (mProfileAlpha * fft.raw()[i]) +
            ((1.0f - mProfileAlpha) * mBackbeatSpectralProfile[i]);
    }
}

References mBackbeatSpectralProfile, fl::min(), and mProfileAlpha.

Referenced by update().

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