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Oberheim Xpander Owner's Manual

Oberheim Xpander
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There
are up to five
Envelope Generators
on
each voice.
Envelopes are used
for changing
the parameters
of
the sound over time. Likely
candidates for this
kind of
function are volume
(VCAs). filter frequency and
resonance, FM, oscillator
frequency
(in
small amounts
gives
a
detuning
effect) pulse width, or LFO volume
(modulating
the VGA on the LFO page)
You
can also
combine
several Envelope Generators to create
more
complex changes.
That
s why
there
are
five on each
voice,
Selecting an
Envelope
Pressing the
ENV
X button will show the
display:
SELECT
ENVELOPE
FROM I TO 5
Pressing an X SELECT button
from f
to
5
will
select
that
envelope,
or
pressing the ENV
X
button again
will select the
envelope that was
selected previously.
You can
switch
between envelopes with the X
SELECT
buttons,
if
none
of
the
values on the
lower display
are
underlined.
Envelope Functions
There are
five
controls
for each envelope, plus
yet
another VGA to
control
the output
volume
of the
envelope.
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DELAY
/
The
amount of
time that the envelope will wait
before doing
anything, very useful if
you
want
to
affect one
element
of the sound sometime
after the sound
starts.
When the
DELAY is
set to 0.
the envelope attacks
right away, without any delay.
Play some
notes while
turning
up
the delay and
see
that the
time between
playing the note
and
hearing
the note
gets
progressively longer as the DELAY
control is
turned up
The maximum
DELAY
is 2.5
seconds.
29
Xpanoer Owners Manual Creative
Input/
1
he Xparded
Voice

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Oberheim Xpander Specifications

General IconGeneral
TypeAnalog Synthesizer
Polyphony6 voices
Oscillators2 VCOs per voice
ControlMIDI
Synthesis TypeAnalog Subtractive
VCA1 per voice
Memory100 patches
ModulationExtensive modulation matrix
Year Released1984
FiltersMulti-mode filter per voice
Envelopes3 per voice
KeyboardNo keyboard
InputsCV/Gate
OutputsIndividual voice outputs

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