Doepfer A-136 User Manual
doepfer
Input
Ext. Level
Ext. Level
Output
A-136
DIS
A
+ L
- L
+ A
- A
System A - 100
1. Introduction
Module A-136 is a distortion and waveshaping mo-
dule with extensive control possibilities. Different settings of 5 distortion/waveshaping parameters enable a
lot of very complex and extreme waveform modifications.
The incoming audio or cv signal is divided into 3
sections: original, positive and negative component.
For the positive and negative component, clipping
levels (L) are defined. Only voltages beyond this level
effect the output signal. For each of the three sections
the positive or negative amplification (A) can be adjusted.
External control voltages can be used to alter both
clipping levels so that dynamic waveform changes are
possible.
The range of modification goes from simple soft or hard
clipping to completely altered waveforms where the
original signal is no longer recognizable.
Distortion / Waveshaper
A-136
Typical applications are audio distortion, and waveform
modification for audio signals as well as for control
voltages (LFO, ADSR, random etc.).
1
A-136
Distortion / Waveshaper
System A - 100
doepfer
2. DIS - Overview
A-136
Distortion / Waveshaper
Input
Ext. Level
+L
+A
A
-L
-A
Ext. Level
Output
Controls:
A : Amplification control for original signal
1
DIS
+ A
10
0
+ L
10
0
A
10
0
- L
10
0
- A
10
0
➃
➁
➀
➂
➄
2 + L : Clipping control for positive signal compo-
nent
- L : Clipping control for negative signal com-
3
ponent
+ A : Amplification control for positive signal
4
component (above the positive clipping
level)
- A : Amplification control for negative signal
5
component (below the negative clipping
level)
In / Outputs:
Input : Signal input
!
" Ext. Level : ext. CV input for positive clipping level
Ext. Level
§
$ Output : Signal output
: ext. CV input for negative clipping le-
vel
2
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