updateAdaptiveThresholds()

void fl::audio::detector::Backbeat::updateAdaptiveThresholds ( )

private

Definition at line 349 of file backbeat.cpp.hpp.

                                        {
    // Update mean accent strengths for backbeat and non-backbeat positions
    if (!mBackbeatAccents.empty()) {
        float sum = 0.0f;
        for (size i = 0; i < mBackbeatAccents.size(); i++) {
            sum += mBackbeatAccents[i];
        }
        mBackbeatMean = sum / static_cast<float>(mBackbeatAccents.size());
    }
 
    if (!mNonBackbeatAccents.empty()) {
        float sum = 0.0f;
        for (size i = 0; i < mNonBackbeatAccents.size(); i++) {
            sum += mNonBackbeatAccents[i];
        }
        mNonBackbeatMean = sum / static_cast<float>(mNonBackbeatAccents.size());
    }
 
    // Adaptive threshold is midpoint between means
    if (mBackbeatMean > mNonBackbeatMean) {
        mAdaptiveThreshold = (mBackbeatMean + mNonBackbeatMean) / 2.0f;
    }
 
    // Calculate backbeat ratio (for state access)
    if (mNonBackbeatMean > 1e-6f) {
        mBackbeatRatio = mBackbeatMean / mNonBackbeatMean;
    } else {
        mBackbeatRatio = 1.0f;
    }
}

References mAdaptiveThreshold, mBackbeatAccents, mBackbeatMean, mBackbeatRatio, mNonBackbeatAccents, and mNonBackbeatMean.

Referenced by update().

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