ARP 2600 - Basic Patch Setup and Initial Settings

5.1
THE CLASSIC
PATCH
AND
ITS
EXTENSIONS.
47
Voltage-controlled
Oscillator,
perhaps
sou rce
VCF
Voltage
-eon
trolled
Filter
VCA
Voltage-controlled!
Amplifier
>out
...
in which an
oscillator or
noise output at some
audio fre-
quency is
filtered and
amplified.
This is the way
it
was
done
in
the
days before
voltage control,
and stiil forms
the
basis
for many patches
you
will
find
useful.
As
the
block
diagram indicates,
we
are
talking
here only
about
the path
of an
audio
signai through
a
filter
and
an
amplifier. Since the
only point of
the
amplifier's presence
in the
signai
path
is to
provide
amplitude
control
over
the
signal, it
could
perfectly
well
be
replaced so
long
as
we
are
concerned only
with manual
control
by a
simple
attenuator. If
t
that
were done the patch
would essentially
reduce
to
out
source
Mix WPan
J-Out
Strictly speaking,
this
should
be:
~
But the
Mix and Pan
controls play no
active
part
in
these
patches, or in
your activities at this point.
Rather
than make our
diagrams
unnecessarily
complicated,
we omit
the last
two elements
in the
patch.
which
is about as
basic as you can get.
4
(This section
is
going
to be very
wordy
while you're
getting
your
bearings. By the time
you reach
5.14
or
so they'll be
moving a
little faster.)