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A-134, System a - 100, Doepfer – Doepfer A-134 VC Panning User Manual

Page 6: Voltage controlled panning

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A-134

Voltage Controlled Panning

System A - 100

doepfer

6

Sequencer
Panning controlled by voltages put out by a se-
quencer such as the A-155.
In the patch in fig. 5, the control voltages are
produced by the lower row of the A-155, so that
as the sequence runs, each note is positioned
at a different place in the stereo soundstage.
(Lessening the abrupt changes between volta-
ges can be achieved by using Post Out 2 on the
A-155.)

MIDI Interface
By patching in a MIDI interface (such as the A-
190 or A-191) you can use virtually any MIDI
Controller message to control panning (for in-
stance the mixing two signals using Aftertouch).

You can also use the pitch information genera-
ted by the MIDI interface to control any aspect
you want - for instance voltage-controlled pan-
ning using pitch data, perhaps making lower no-
tes appear more on the left of the soundstage,
and higher notes on the right.

Fig. 2:

Random position in the stereo soundstage
each time a key is pressed.

PAN

Left

Out

Right

Out

Audio

In 1

CV In

VCO

VCA

A-118

CV

Gate

A-148

Random

Out

Trig. In

VCF

ADSR