Doepfer A-155 Analog/Trigger Sequencer - Manual (Page 14)

A-155
Analog / Trigger Sequencer
System A - 100 doepfer
14
The following are some short notes with suggestions
for further exploration, to act as inspiration for your
own patching ideas.
• Gate patched to glide control
Glide / portamento can be switched on or off for
each step (a la TB-303, see. p. 6).
• Trigger (Gate) patched to Reset
Shortening a sequence to, e.g., six notes.
• Trigger (Gate) patched to Stop
"One shot": the sequence runs just once, and only
repeats when a Start signal is received.
• Chopping up audio signals
Using the lower analog CV row, audio signals
patched into the inputs will be output ‘chopped up’
from the Pre Out socket.
• MIDI control
The A-155 can be controlled by MIDI-Clock with the
help of an A-190 module; the Clock and Reset
outputs of the A-190 are simply connected to the
Clock and Reset inputs on the A-155.
• Random Clock
The Random Clock output from the A-117 can give
a sequence random timing.
• VC-LFO as Clock
Using one of the analog CV rows to control a
VC-LFO (A-147), the timing of each step of the
sequence can be completely variable.
• Variable decay time for each step
Using one analog CV row to control the decay time
on a VC-ADSR (A-141 or A-142 - and on the A-141
attack and release times could also be controlled)
the envelope output can then control, e.g., a VCF
or VCA.
• Variable audio pulse width for each step
Using one analog CV row to control the pulse width
of a VCO square wave.
Variable control pulse width for each step
Using one analog CV row to control decay on an
A-142 (and taking the gate output from the A-142).