A-132-8

Octal VCA

A-132-8 contains four VCA pairs. Each pair includes
two daisy-chained VCAs. One VCA has a linear control
scale, for the second VCA linear or exponential control
scale can be chosen by means of jumpers.
We decided to provide two VCAs for each voice
because usually one VCA is required for loudness
envelope and a second one for velocity (or another
function).
For each VCA these in/outputs are available:
•
CV Input VCA 1
•
CV Input VCA 2
•
Audio Input
•
Audio Output
Audio Sum Output is also available.
The module features two Initial Gain controls, that
enable the opening of the first (G1) and/or second VCA
(G2). This is necessary when the VCA in question is
not in use (i.e. no external CV available). Otherwise the
VCA would close. They are also useful for testing
polyphonic patches.
Application:
polyphonic patches with two VCAs per voice.