Doepfer A-100(~ 40 MB) - Manual (Page 454)

A-148 Dual S&H System A - 100 doepfer
4
5. User examples
Random arpeggios
In the example in Fig. 2, an A-118 is used in conjunc-
tion with the A-148 to produce random voltages from
the random output of the A-118. An LFO triggers the
S&H module, so that with every oscillation of the LFO
a new random voltage is output to the VCO’s CV input.
If you patch an A-130 VCA in before the VCO, you can
adjust the Gain and Out amounts to restrict the fre-
quency range of the random voltages to whatever you
want.
Fig. 2: Random arpeggios
P You can use the same basic set-up as in Fig.
2, but patch the S & H voltage output to the
CV input of a filter set to high resonance, for
some interesting rhythmic timbral changes
(see page 6).
Glissando
In Fig. 3 an A-148 produces a staircase voltage.
The pitch CV output from a keyboard is patched into
an A-170 Slew Limiter. An A-148 triggered by the
rising edge of an LFO samples the output from the
slew limiter, and produces a staircase voltage which in
turn controls a VCO’s pitch.
Playing two notes, particularly widely spaced ones,
produces interesting glissandi.
H It’s important to adjust the slew limiter’s time
setting and the LFO’s frequency to achieve
the right speed and number of notes in the
glissandi. VCO S&H
LFO
Trig. In
CV 2 In
A-118
Random