Envelope is an analog function generator which can be used in a variety of ways: attack-decay (AD) envelope, attack-sustain-release (ASR), attack-release (AR), LFO, output voltage limiter, wave shaper.
The attack time is set by the regulator or an external CV signal via the "rise CV" connector. The adjustment to attack is selected by the switch and can be a linear or set with a "non linearity" (from the logarithmic to the exponential) control. The same setting options are provided for the decay parameter. The envelope component of the release can be switched on or off, there are no other adjustment options.
The connector "both CV" serves for simultaneous control of attack and decay time.
In LFO mode, the shape of the generated signal is specified by the attack and decay parameters. The attack forms the left side of the wave, and the decay - the right one. For example, if you set these controls to the left, you’ll get a triangular wave at the output.