doepfer
System A - 100
VCADSR
A-141
1
1. Introduction
Module
A-141 (VCADSR)
is a
voltage controlled
envelope generator.
Whenever a
gate signal
is sensed at the VCADSR’s
gate input
, an adjustable sequence of voltages is
triggered - the
envelope
. You can then use these
envelopes to modulate a VCO, VCF and/or VCA, and
alter the input and output voltages of all sorts of
modules.
The shape of the envelope is governed by four para-
meters:
A
ttack,
D
ecay,
S
ustain and
R
elease (see Fig.
1 on page 3). On the A-141, these parameters can be
controlled
by hand
, or by
voltage control
, via the
dedicated CV inputs (each with an attenuator).
The A-141 VCADSR also has a
retrigger facility:
while the gate is open
, a trigger pulse received at the
retrigger socket will
re-start the envelope
from the
beginning of its attack phase (see Fig. 2 on page 5).
Gate
Decay
Release
Attack
A-141
VCADSR
Sustain
Retrig.
Output
CV A
CV A
CV D
CV D
CV S
CV S
CV R
CV R
