Vostok deluxe – Analogue Solutions Vostok Deluxe User Manual

Page 32

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Vostok Deluxe

32

Circuits – Main PANEL | Analogue Solutions

ENVELOPE GENERATORS (EGS)

The EGs produce a control voltage that varies over time. Typical used to shape the volume of a sound
when controlling the VCA, or the tone, when controlling filter cut-off.

But can also be used to modulate, say, the pitch, for drum effects, or, pulse width, for brassy sounds.

There are two EGs and they are identical to each other.

A control

Attack: This controls how low the EG takes to reach maximum level once triggered.

D control

Decay: After reaching maximum level following the Attach stage, Decay sets the time taken to
reach the level set by Sustain.

S control

Sustain: Once the Attack and Decay stages have passed, Sustain sets the level that the EG will
hold its output at for as long as a key is held down.

R control

Release: Once the key is released, this sets the time take for the signal to fade to zero.

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