ARP 2600 - Reverberation Unit Integration; Motor and Industrial Sound Variations

91
JU\A
vco
9
You
should get
used to the
idea that there can
be
other gate sources
for
the
envelope
generators
besides the keyboard
and
the Interna
Clock.
Any square
or
pulse wave-in fact any
steep-rising
wavefront-
can
function
as
a
gate,
and/or trigger.
Use
the
above
patch, for example,
whenever
you require voltage
control of
the
repetition-rate
of
the
Envelope
Generators
The Internal
Clock
is
not
subject
to
voltage
control
If
you use VC02
in
a
situation like
this,
you
can
have
some
control
also over
the
duration
of
envelopes
by modulating the
pulse
width of
the
VC02.'
10
This
was
discussed somewhat in
5.112,
No.
2.
If the
control signal is
a
sawtooth,
inverting it
will
produce descending rather
than ascending
sweeps
of
a
controlled
VCO or VCF.
For
combinations of inverted
and
uninverted control voltages, see
No.
7 of this
section.
The VP
lag
is
not
essential
to this
patch;
the
point
is
to
experiment
with multiplication of
control
voltages.
Using a
pulse
wave,
and with
an oscillator as 'VCX',
and plenty of reverb,
you
might get
a
kind of
multiple plucked-string
effect like
a
mandolin. Then again
you
might
not.