VC ADSR / VCA

Voltage Controlled Envelope Generator & VCA

The Oakley VC ADSR / VCA is a fully voltage controllable envelope generator built by Lower West Side Studio

Used as a combination EG/VCA this module doesn’t require patching of the EG output to the VCA input. The VCA can also be controlled through an external control voltage.

The envelope generator can be set to one of 3 modes;

NORM – the module behaves as a standard ADSR.
GATED – the output will loop only when gate is high. As soon as gate arrives the output will rise up at the attack speed and then decay at the decay time and repeat. If the gate is removed at any point the output will then fall at the release time.
LOOP – The module’s output it will loop continuously in AD mode. The Gate input has no effect in Loop mode.
Each CV input is controlled by a dedicated pot. This pot acts as a reversible attenuator, so that the gain of the input is anything from -1 to +1. This means that any inputted CVs can subtract or add to the times, or level, set by the ADSR pots.

With any input knob set to its middle position then that CV channel is effectively turned off.

This envelope generator is very fast. Response time has been found to be among the fastest among several vendors

The ADSR/VCA comes in a 2U width with 1″ (25.4mm) knobs controlling 8 potentiometers; Attack, Decay, Sustain and Release

2 toggle switches control Envelope operation (Normal, Gated Loop, Loop) and Speed

A 3rd switch toggles normalizing Decay CV to Attack CV

Envelope status is displayed by an LED

Inputs: Gate, VCA Signal, Attack CV, Decay CV, Sustain CV, Release CV

Outputs: ADSR envelope, VCA Signal

The module operates at +/- 15V and comes with a Synthesizers.com style power connector.

https://richsstudioproject.wpcomstaging.com/product/vcadsr-vca/