The Polivoks ADSR / VCA von The Harvestman module combines one Envelope Generator and VCA , two elementary building blocks of a synthesizer.
In addition to the classic ADSR parameters, the envelope has additional controls: an extended time range, manual trigger, envelope repeat and a delay function for attack and release Phase .
It VCA has several attenuated modulation inputs and a manual "drone-level" control. The output of the envelope is VCA normalized with the input of the normalized so that a compact and convenient integration to the end of a subtractive synthesizer with a minimum of patch cables is possible.
The original Polivoks keyboard contains two VCAs connected in series, so that amplitude modulation and envelope can be controlled independently. In order to create a recreation of the original, two of the Polivoks ADSR / are VCA Module needed.