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System a - 100, A-109, User examples – Doepfer A-109 Voltage Controlled Audio Signal Processor User Manual

Page 9: Doepfer

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doepfer

System A - 100

VC Signal Processor

A-109

9

(

Pan In

This socket is the audio input of the Panning sec-
tion
. It is internally connected to the VCA output /
(normalized socket) provided that no plug is inserted
into the socket (.

)

CVP1 • CVP2

These are the control voltage inputs for the Panning
section
. The control voltages of both sockets are
added to manual control 8.

CVP1 is equipped with an attenuator that allows con-
trol the level of voltage - the intensity of panning
modulation - with the attenuator 9.

Socket CVP2 does not have an attenuator. The vol-
tage range for this input is approximately 0...+5V.

A typical application is the periodical "walking" of a
signal in the stereo panorama. For this the triangle or
sine output of a LFO is connected to one of the sockets
)

to control the panning.

=

Pan Out L • Pan Out R

These sockets are the left resp. right audio output of
the panning section.

5. User Examples

Module A-109 makes available three important basic
modules: 24dB low pass (VCF), VCA and PAN. At
least VCF and VCA are required for most of the
standard synthesizer patches. The sub-modules are
usefully pre-patched to minimize the required external
patches.

Because of the normalized audio input sockets the
sub-modules of the A-109 can be used even separa-
tely from each other.

As the A-109 is nothing but a collection of modules that
are still available in the A-100 please look at the
examples in the manuals for the A-100 filters (e.g.
A-102, A-103, A-105, A-108, A-120, A-122), VCAs
(e.g. A-130, A-131, A-132) and the separate panning
module (A-134) to find some typical applications.