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System a - 100, A-115, Controls – Doepfer A-100(~ 40 MB) User Manual

Page 235: User examples, Doepfer

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doepfer

System A - 100

DIVIDER

A-115

3

3. Controls

1

Orig.

This attenuator controls the amount of the original
input signal
present in the mix output.

2

F / 2 ... 5 F / 16

These attenuators 2 to 5 control the amount of the
respective sub-octaves
present in the mix output.
Say your production needs a stronger bass-line: you
can add a square wave an octave below the original
signal simply by setting attenuators 1 and 2 to maxi-
mum, and attenuators 3 to 5 to 0.

4. In / Outputs

!

Audio In

Socket ! is the divider’s input. Connect up the signal
whose frequency you wish to divide.

H

The divider is basically set up to divide rectangle
waveforms. If you put another waveform into the
input (for instance a sawtooth) the A-115 will
change it into a square wave before dividing it.

"

Audio Out

At output " the total mix of the original signal and four
sub-octaves (depending on the position of attenuators
1

to 5) is available.

5. User examples

A-115 as a "frequency generator"

With the A-115, you can start out with a VCO’s basic
square wave and produce more complex waveforms.

Fig. 1 shows how the A-115 can take a simple square
wave and create a new wave form. Turn attenuators
1

to 4 up to maximum, and set attenuator 5 to 0.

Fig. 1: The A-115 as a frequency generator

Experiment with different level settings for each at-
tenuator, and also with other waveforms (for instance,
a square wave modulated by a slow LFO).

Audio In

F / 2

Audio
Out

F / 8

A-115

DIVIDER

F / 4

In

VCO