processing_function()

void MayaFlux::Buffers::FinalLimiterProcessor::processing_function ( std::shared_ptr< Buffer >  buffer )

overridevirtual

Processes a buffer by enforcing boundary conditions.

Parameters

buffer

Buffer to process

This method applies a non-linear boundary enforcement algorithm to ensure all values stay within the valid range (typically -1.0 to 1.0) before being transmitted to hardware interfaces, while preserving the perceptual characteristics of the original signal.

Implements MayaFlux::Buffers::BufferProcessor.

Definition at line 157 of file RootAudioBuffer.cpp.

{
    auto audio_buffer = std::dynamic_pointer_cast<AudioBuffer>(buffer);
    if (!audio_buffer) {
        return;
    }
 
    auto& data = audio_buffer->get_data();
 
    constexpr double threshold = 0.95;
    constexpr double knee = 0.1;
 
    for (double& sample : data) {
        const double abs_sample = std::abs(sample);
 
        if (abs_sample > threshold) {
            const double excess = abs_sample - threshold;
            const double compressed_excess = std::tanh(excess / knee) * knee;
            const double limited_abs = threshold + compressed_excess;
 
            sample = (sample >= 0.0) ? limited_abs : -limited_abs;
        }
    }
}