Method update

src/fl/audio/detector/transient.cpp.hpp:27–57

Transient::~Transient() FL_NOEXCEPT = default;

void Transient::update(shared_ptr<Context> context) {
    mRetainedFFT = context->getFFT16();
    const fft::Bins& fft = *mRetainedFFT;
    u32 timestamp = context->getTimestamp();

    // Calculate high-frequency energy (transients have strong high-freq components)
    mCurrentEnergy = calculateHighFreqEnergy(fft);

    // Calculate energy flux (rate of change)
    float flux = calculateEnergyFlux(mCurrentEnergy);

    // Detect transient
    mTransientDetected = detectTransient(flux, timestamp);

    if (mTransientDetected) {
        updateAttackTime(flux);
        mLastTransientTime = timestamp;
    }

    // Update previous energy for next frame
    mPreviousEnergy = mCurrentEnergy;

    // Filter energy through HampelFilter to reject outliers before history
    float filteredEnergy = mEnergyOutlierFilter.update(mCurrentEnergy);

    // Update energy history with outlier-rejected values
    if (mEnergyHistory.size() >= ENERGY_HISTORY_SIZE) {
        mEnergyHistory.pop_front();
    }
    mEnergyHistory.push_back(filteredEnergy);
}

void Transient::fireCallbacks() {
    if (mTransientDetected) {