Doepfer A-136

Module A-135 is a distortion and waveshaping module with extensive control possibilities. The incoming audio or cv signal is internally divided into 3 sections:
– positive component of the signal with adjustable clipping level (even externally via jack socket) and positive or negative amplification (+/-) of this component
– negative component of the signal with adjustable clipping level (even externally via jack socket) and positive or negative amplification (+/-) of this component
– original signal with positive or negative amplification (+/-)
Different settings of 5 distortion/waveshaping parameters enable a lot of very complex and extreme waveform modifications. The range of modifications reaches from simple soft or hard clipping to completely altered waveforms where the original signal is no longer recognizable.
The sketch below shows only a few examples when using a triangle as input signal.
Applications: audio distortion (especially in combination with filters very interesting), waveform modification for audio signals as well as for control voltages (LFO, ADSR, random etc.).
Inputs: audio/CV in, ext. Clipping-Level (+), ext. Clipping-Level (-)
Output: audio/CV out