Doepfer A-136 Distortion/Waveshaper User Manual download pdf (Page 3)

doepfer

System A - 100

Distortion / Waveshaper

A-136

3. Controls

1 A

Control 1 defines the amplification A of the original

signal. The range of the amplification factor is about

-4...+4. This means that one can obtain actual

amplification (range +1...+4), or attenuation (range

0...+1) or even inversion of the original signal (range

-4...0). The table below shows the approximate

assignment of some control settings and the

corresponding amplification factors:

Tab. 1: How control settings affect amplification

factors

2 + L • 3 - L

Controls 2 and 3 adjust the positive (+L) and

negative (-L) clipping levels respectively.

In the positive signal section only signal voltages

above the positive clipping level +L are affected by the

amplification control +A.

In the negative signal section only signal voltages

below the negative clipping level -L are affected by the

amplification control -A.

Fig. 1: how the clipping levels work (input signal =

triangle)

Control

setting

Amplification

factor

Explanation

0 about -4

maximum negative amplification

3,5 about -1

same amplitude as input signal but

inverted

5 about 0

suppression of input signal

6,5 about 1

same amplitude as input signal

10 about 4

maximum positive amplification

+ L

- L

1 2 3 4 5 6

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Doepfer A-136 Distortion/Waveshaper User Manual Page 3

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