Doepfer A-144 Morphing Controller - Manual

doepfer System A - 100 Morphing Controller A-144
1
1. Introduction
Module A-144 is an extension module for the Voltage
Controlled Mixer A-135. It is a so-called Morphing
Controller that derives from a linear increasing con-
trol voltage at the input (0...+5V) four displaced
triangle voltages (0 bis +5 V). These voltages are
used as control voltages for the Voltage Controlled
Mixer to obtain a fading over (“morphing”) the four
A-135 audio inputs with only one control voltage fed
into the A-144 CV input.
Morphing can be controlled manually with the ma-
nual morphing control and modulated with an exter-
nal control voltage (e.g. from LFO, ADSR, Random,
MIDI-to-CV, Theremin, Light-to-CV, analog sequen-
cer) with attenuator.
Applications : voltage controlled morphing of 4 audio
signals in combination with A-135, e.g. morphing bet-
ween the 4 waveform outputs of an VCO (sawtooth/
rectangle/ triangle/ sine) or the 4 filter outputs of the
multimode filter A-121 (lowpass/ bandpass/ high-
pass/ notch) or the 4 filter outputs of the A-105
(6/12/18/24dB) to obtain a filter with voltage control-
led slope.
CV
Out 1
Man. Morph
A-144
MC
Out 2
Out 3
Out 4
CV