Oberheim Xpander Owner's Manual

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SINGLE-MULTI
/
in SINGLE
mode, the
envelope
gets a
new gate
signal only
if
not
already
gated
(that is.
already playing)
Slurring
notes
will not generate new gates.
In
MULTI mode,
the
envelope gets a new gate
whenever
there is a new note.
Slurred notes
will generate new gates
in multi mode. When
combined
with
the RESET mode above, the
envelope
will start
at
zero on every note,
no
matter how it
is played
EXTRIG
/
This triggers
the envelope
from
the External
Trigger Input on
the rear panel,
v^hich enables
the
envelope to be
synchronized to
external clocking sources
This is
espe-
cially effective used
with
the CLICK OUT
of the DMX
or DX
Drum Machines.
LFOTRIG
/
This
enables
one of the LFOs to
trigger
the envelope, to
synchronize
it with
other
modulation functions
of the Xpander. When
LFOTRIG is
underlined, the adjacent dis-
play
shows which
LFO (including the
vibrato LFO on the VIB
Multi
Patch page)
is being used
as
the
trigger.
GATED
/
If either
EXTRIG
or LFOTRIG is on, the
GATED switch
appears.
If the GATED dis-
play
is underlined,
the External
trigger or
LFO trigger
source
will trigger the
envelope only
if
the
envelope is gated
In other
words,
it will trigger only
when
a
note
is
being played. It
GATED is
off, the
envelope will
continually
trigger.
T IME
Creating
Very Long or Unusual
Envelopes
Remember that
unlike
all
your
other synths,
you
can modulate
all
of
these
timings with
any-
thing- an LFO, the
velocity, the keyboard
(especially through a
tracking
generator), or
even
another
envelope
For example, modulating
the Release with the envelope's
own
output
results in
a
release
time that gets
faster and
faster
as
it nears the zero
level, something
like 15
minutes
later. Setting all of
the Envelope times
to
63,
modulating
each of them with a
Track-
ing
Generator set
to 63. and
switching on Freerun &
DADR
results in an envelope
cycle that
runs about
half
an
hour in length
from
just a quick
touch on the
keyboard.
Trance, anyone?
Oh
yes, the
VCA (like all VCAs) can
be
modulated,
too.
Stopping An
Envelope
Pressing the
TUNE PAGE
button will
cut
short any envelopes
in progress,
if
you
don't wish
to
hang around for the
above mentioned
half hour
envelope
to
finish
its cycle
•
W*ttttt
'/•*"
3!
Xoander
Owners Manual
Creative
Input .The
Xpandod
Voice

Oberheim Xpander Specifications

General

Type	Analog Synthesizer
Polyphony	6 voices
Oscillators	2 VCOs per voice
Control	MIDI
Synthesis Type	Analog Subtractive
VCA	1 per voice
Memory	100 patches
Modulation	Extensive modulation matrix
Year Released	1984
Filters	Multi-mode filter per voice
Envelopes	3 per voice
Keyboard	No keyboard
Inputs	CV/Gate
Outputs	Individual voice outputs