The effect works by analyzing incoming signal levels through use of a threshold parameter.
Any signal level that exceeds the threshold is used as a trigger for a synthesizer-style
ADSR envelope or an LFO (low frequency oscillator). These control sources are used to
dynamically modulate the filter cutoff.
The AutoFilter allows you to choose between different filter types and slopes, control the
amount of resonance, add distortion for more aggressive sounds, and mix the original,
dry signal with the processed signal.