Maul's envelope follower reacts to the amplitude of the input signal to create a series of attack-decay envelopes which are used as modulation signals in the TransMod system. Try using the Follower source to modulate the filter Cutoff and Drive parameters in the distortion stages.

The Envelope Follower module's Visualizer represents the real-time output of the module.


This control sets the Attack time of the envelope generated in response to a new detected transient.


This control sets the Decay time of the generated envelope.



The Level control allows you to attenuate the level of the signal entering the envelope follower transient detection circuit. At 100%, no attenuation is applied on the signal.


The Gain control offers a final attenuation control for the output of the module before it enters the TransMod modulation system. At 100%, no attenuation is applied to the output modulation signal.

This control is intended to be modulated by other TransMod sources, in a similar way to using a VCA to scale one modulation source with another in an analogue modular system.