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Doepfer A-188-1 BBD Module User Manual

Page 15

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DOEPFER

DOEPFER

DOEPFER

DOEPFER

System A-100

BBD Module A-188-1

15

This patch shows another example for the Karplus/Strong
synthesis. The LFO A-145 is used as clock oscillator but any
other clock source could be used as well. The rectangle
output is connected to the clock input of the Quantized /
Stored Random Voltages module A-149-1 (upper or lower
section may be used) and to the gate input of the envelope
generator A-140. One of the quantized or stored CV outputs
of the A-149-1 is patched to the CV1 input of the A-188-1.
The rest of the patch is the same as the basic
Karplus/Strong Synthesis Patch (only the "6 oscillators"
output of the A-117 is used instead of the digital noise
output in the basic patch).

The patch generates a random melody. The tempo is
defined by the LFO rate, the tone range by the "N" settings
of the A-149-1 (Manual "N" and possibly CV "N"). Additional
modules can be used e.g. to modulate "N" of the A-149-1 or
the decay time of a voltage controlled envelope generator
(e.g. A-141 or A-142 instead of the A-140) by another
random voltage of the A-149-1.

Karplus/Strong Random melody patch (A149/1)