Doepfer A-118 Noise/Random - Manual (Page 5)

doepfer System A - 100 NOISE / RANDOM A-118
5
5. User examples
The A-118 as wind FX generator
D Patch the A-118 into an A-120 VCF as below. Set
CV2 to zero, the frequency to a mid position, and
the resonance to just below self-oscillation.
D Now increase CV2’s level. An irregular wind sound
should emerge. Knobs 3 and 4 on the A-118
control the rate of change and amount of this
irregularity. 1 and 2 control the wind’s timbral
content.
Fig. 4: Using the A-118 and A-120 for wind noises
Random arpeggios
In this example, momentary random voltages from the
A-118’s random output are captured by a Sample
& Hold Module which is itself triggered by an LFO.
Every time the LFO completes a cycle, a new random
note is played by the VCO. It’s possible to patch a VCA
in before the VCO, and, by adjusting the gain and
output parameters, control the frequency range of the
arpeggios.
Fig. 5: Rhythmic random arpeggios
Blue
Colored
Random
Output
Rate
A-118
NOISE / RANDOM
Random Control
- +
Red
Level
Resonance
CV 2
Audio In
Level
Audio
Out
CV 2
Frequency
A-120
VCF 1 Random
A-118
NOISE / RANDOM
VCO S&H
LFO
Trig. In
CV 2 In