Mutes signal randomly (crackles)
Source signal is muted or passed to output randomly. Block can work with external signal (AUX input) or with built in Noise sources (pink or white). Big knob controls ratio of cycles that are muted vs. those that are kept intact. Mute state is considered/decided for every wave-cycle of control/clock signal (can be same as source signal) - using zero crossing detection. Signal sent to detection can be offset (in order to delay state change for continuous waveforms).