ARP ODYSSEY - Page 30

KEYBOARD AND
PEDALS-
The KEYBOARD producei two CONTROL
VOLTAGES.
Th«sc
voluicief are The
time
if rrane or oM key is
do pressed on the keyboard.
(If no keys
ate d&ptes56d on
thi^ keyboard, tha control voltages correspond tc the last
kffy playedO K
two ot
nwre
notes
are
depresa»d, the first
contfDl volt^i ooTFesponds to the lowest
ittey
depressed^
and the
second oottirol voltage
corfssponds to the highest
depffl^ed.
The first oonirol voltage it always
connected
to VCO
1,
unless
VCO
1 is set to the L.F-^
rtiode, in which case the
keyboard is disconnected fronj VCO L
Th?
seooftd
control
voUa^e i? always ^nnecied lo VCO
2.
When
VCO
2 has SYNC switched on, the
keyboard js still
connected
to
VCO
2,
although in this case it does
not
directly
control its
frequency,
but rather its harmonic
content, ax do the tuiurigi itklecs
for
VCO
2
in
this
cast.
(Try it.)
The first keyboard
control
vohage can abo be connected
to the
VCF
by
laisiiag
the
appropdtte
dider
under
the
VCFr
This was investigated during the esperitnents with
the VCF.
It is iinpoitant to knaw that the ODYSSEY has a
buOt in
memory,
which hoWa the last note
played on
the
keyboard, This kteps the pitch
information around
during
the
RELEASE cycle
of the AR
and
AC^R
envekjpe
generators, as wo shall
see.
The keyboai^ On the
ODYSSEY
has several «jntrols
associated
uriih
it.
These
include the PORTAMENTO
slider and PORTAMENTO SWITCH. The
TRAMSPOSE
SWITC H
wiU
shift
the pitch o f
t
he keyboard up o r
down
ejucily two octAves. The PITCH
BEND
control will be
discussed
in
a sep^arate
sectton.
PORTAMENTO
is
5 "sliding
effect." Set up your
ODYSSEY as shown in Figure M.
Raise
the ADSR oontro)
under
the
VCF.
As
you play on the
keyboard, hold
liovm
the PORTAMENTO
pedat, raise
the PORTAMENTO
slider
and listen to the resulting
effect
.
The
foot
switch
supplied
with
your
ODYSSEY
is used to turn on the
PORTAMENTO.
Thus
you caj^
set
ihe PORTAMENTO
glider for a
certain glide
speed and then turn it on and
off
with the
foot switch.
When the fool pedal k plugged into the
b^ck
of
your
ODYSSEY, VCO 2
and the
VCF
can
be
controlled by it.
(The signal from the SfH Mbcer is automatically
diEOOnnected
by
inserting the
foot pedal jack as explained
earlier.) Several of the patches
make
use of t}»e foot
pedal
for wah-wah and other effect?.