Doepfer A-127 Triple VC Resonance Filter - Manual (Page 7)

doepfer System A - 100 Triple VC Resonance Filter A-127
7
§ Audio Out
Each filter Audio output § sends out the signal
processed by the particular filter. Despite what the
diagram on some of the early A-127 modules shows,
the Audio Level control 7 does also affect these
individual outputs, because the individual output co-
mes after the Audio Level control in the circuit.
$ Mix
At socket $ the mixed output from the internal mixer
is available. That includes the output from each of the
three filters (with level from each filter set by control 7)
and the original signal (with level set by control 8).
6. User examples
By controlling filter frequencies with the internal LFO or
external voltages, the A-127 can produce extremely
complex filtering effects.
The control possibilities available with external Modu-
lation sources are almost limitless.
Here are just a few examples:-
• LFO
other waveforms - not just triangle; LFO frequen-
cies in the Audio- range
• ADSR
different envelopes for each of the individual filters;
complex filter sweeps
• MIDI Interface A-191
different MIDI controllers for each of the individual
filters: MIDI-controlled vowel sounds (see Exam-
ples below)
• Random-CV A-118
random filter settings
• Theremin A-178
filter settings by remote control!
• Sequencer A-155 or MAQ 16/3
vocoder- and speech-like effects with specially sha-
ped external CV sequences (see below)