Doepfer A-155 Analog/Trigger Sequencer - Manual (Page 11)

doepfer System A - 100
Analog / Trigger Sequencer
A-155
11
fig. 4: controlling decay time in a VC-ADSR
In fig. 4 the lower analog CV row controls the decay
time of a VC-ADSR. This in turn controls the cut-off
frequency of a VCF, and so produces filter accents of
different lengths.
1 2 3 4 5 6 7 8
VCO
Clock
Trig. 1
Post Out 1
Pre Out 2
VCF
VC-ADSR
Decay
A-155