Manual

doepfer
System A - 100
Dual Slew Limiter A-170
5
Slew limiter as AR envelope generator
You can use the lower A-170 as a simple AR enve-
lope generator, for instance in the example in Fig. 4,
to help create a certain percussive bass sound.
Fig. 3
: The A-170 as a simple AR generator
“Glissando AM”
The patch in Fig. 4. produces an interesting sound.
The two VCOs are set to harmonically related inter-
vals. A keyboard pitch control voltage is patched to
both VCOs - directly to VCO1 (the carrier), and via the
A-170 upper slew limiter to VCO2 - the modulator.
When a new note is played, the carrier VCO reacts
immediately, while the modulator VCO glides gra-
dually to the pitch of the note, producing a complex
timbral sweep.
Fig. 4: "Glissando AM"
H It’s important to keep the time level of the
A-170 less than the shortest note length
played.
CV
Gat e
VCO VCF
A-170
A-170
VCA
CV
VCA 1 VCA 2
A-170
VCO 1
VCO 2
ADSR
Gat e
upper SL