Doepfer A-177 External Foot Controller (no longer available) - Manual (Page 5)

doepfer System A - 100 External Foot Controller A-177
5
5. User examples
Typical foot pedal uses
You can connect a foot pedal or two up to the A-177
whenever you want to use a real-time variable control
voltage in your creation of sounds.
Classic uses are, for instance, to control loudness with
a VCA, or timbre with a VCF, or to vary the intensity of
a modulation, etc..
Patching in a foot pedal via the A-177 is particularly
useful if you’re using an A-190 MIDI interface (which
has just one pitch CV and one other controller CV).
Typical foot switch uses
You can connect footswitches up to the A-177 whene-
ver you want to trigger certain events in real time.
Typical uses might be to connect to the Start / Stop /
Reset sockets of sequencer modules (A-155, A-
160/1), or the Reset socket on the A-145 LFO; to
re-trigger an ADSR (A-140, A-141), to trigger percus-
sive sounds using an ADSR, and to switch between
different voltage levels (see fig. 3) or signal sources by
means of voltage-controlled switches (the A-150 and/
or A-151).
fig. 3: switching between two levels of filter modula-
tion intensity with a foot switch
A-132
CV
O/I
A-150
I/O 1
I/O 2
CV 1
CV 2
A-176
VCO
VCF
LFO
A-177
Gate 1
CV 1 :
CV 2 :