VCA – VOLTAGE CONTROLLED
AMPLIFIER
The VCA is an amplifier whose gain
can be changed with a modulation
signal, typically an envelope.
There are four choices available on
the rotary switch.
MODE
EG1 /EG2
Normally used to contour the volume.
GATE
The VCA opens and closes with no
gradual attack or decay, much like an
organ.
THRU
This holds the VCA open at full
volume. This is typically used when
feeding external audio into the synth.
It can then be used like an effects
processor.
Analogue Solutions 2021 02
