Doepfer A-115 Handleiding
Doepfer
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A-115
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doepfer System A - 100 DIVIDER A-115
1
1. Introduction
Module A-115 (DIVIDER) is a four-way frequency
divider.
The frequency of a signal at the input is halved (half
frequency = first sub-octave), quartered (1/4 frequency
= second sub-octave), and so on.
In this way, the DIVIDER produces four sub-octaves
(F/2 down to F/16).
At the output, the A-115 produces a summed mix of
the original and the four sub-octaves. There are at-
tenuators to control the amount (ie. Amplitude) of the
original signal and each of the sub-octaves.
Bear in mind that the sub-octaves output by the A-115
are all true square waves. If you put, eg., a sawtooth
into the Divider, it changes it into a square wave before
the frequency division takes place (using the Schmitt-
Trigger system, if you’re interested). At the output,
therefore, there are always four square waves and the
original signal available.
Audio In
F / 2
Audio
Out
F / 8
A-115
DIV IDER
F / 4
F / 16
Orig.
A-115 DIVIDER System A - 100 doepfer
2
2. DIVIDER - Overview Controls:
1 Orig. : Attenuator controlling the amount of
the original input signal present at the
mix output "
2 F / 2 : Attenuator controlling the amount of
the first sub-octave present at the mix
output "
3 F / 4 : ditto for the second sub-octave
4 F / 8 : ditto for the third sub-octave
5 F / 16 : ditto for the fourth sub-octave
In / Outputs:
! In : Signal input
" Out : Mix signal output
A-115
DIVIDER
Out
F / 2
F / 4
F / 8
F / 16
Orig.
In
➊
➋
➀
➁
➂
➃
➄
0 10
010
010
0 10
010
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 5 to ) 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
Product specificaties
| Merk: | Doepfer |
| Categorie: | Niet gecategoriseerd |
| Model: | A-115 |
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