The Envelope Follower module is capable of creating control voltages from an audio source, trigger pulses, gate signals and also from other control voltages.
 
It can also generate trigger and gate pulses when the incoming signal goes above a certain threshold.  You can adjust the attack and decay response times to generate swells or sustained envelopes.
 
Extract the envelope of an audio signal or change the time characteristics of other control voltages with the SynQuaNon Envelope Follower.
 
Ideal for guitar multi-channel, single-string, or hexaphonic effects processing.
 
Hand-built in the USA.