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Oberheim Matrix-12 User Manual

Oberheim Matrix-12
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FMDEST
With
a
small
FM
amount,
the
overtones
generated
will
be
the
frequencies
of
VCO2
and
VCO1
or
the
VCF
(when
flES
is
at
maximum),
plus
the
sum
and
difference
of
their
frequencies.
Increasing
the
amount
(VALUE
X)
will
cause
other
overtones
to
be
generated
as
well.
Changing
the
amount
changes
the
volume
and
number
of
the
overtones,
similar
to
conventional
filtering.
MF.M.
Destination"
As
mentioned
previously,
this
parameter
permits
the
selection
of
the
destination
of
the
MATRIX-12fs
FM
generator
to
be
either
VCO1
or
the
VCF.
Turning
Knob
#2
back
and
forth
selects
betwen
VCO1
or
VCF.
Also,
pressing
the
button
above
this
knob
repeatedly
toggles
between
VCO1
and
the
VCF.
Either
VCO1
or
the
VCF
can
be
selected,
but
not
at
the
same
time.
FM
Experiment
The
FM
Generator
is
actually
theMATRIX-12fs
"28th"
Source
of
Modulation.
But
due
to
its
unique
design
(utilizing
a
VCO
for
its
waveform
and
frequency)
and
specialized
use
as
a
Modulator
(it
can
only
affect
VCO1
or
the
VCF),
it
is
given
its
own
Page
and
is
not
used
in
the
MATRIX-12's
Matrix
Modulation.
To
experiment
with
FM
in
its
simplest
form,
do
the
following:
STEP
1:
Select
a
SINGLE
Patch
that
you
want
to
work
with.
Or
for
the
easiest
way
to
hear
FM,
press
and
hold
STORE.
Then
while
holding
STORE,
press
the
CLEAR
button.
This
action
recalls
the
MATRIX-12's
Basic
Patch
-
called
"OBERHEIM"
-
from
permanent
memory.
This
is
called
the
"Patch
Initializing"
function
and
is
described
in
the
PROGRAMMER
section
of
the
manual.
We
will
need
to
use
the
MATRIX-12fS
Basic
Patch
for
this
experiment.
STEP
2:
Select
VCO2.
Press
PAGE
2.
Turn
its
waveform
outputs
OFF
in
the
Lower
Display.
VCO
2fs
Triangle
wave
is
patched
separately
for
FM
so
we
don't
want
interference
from
its
audio
waves.
STEP
3:
Select
VCO1.
Enter
Page
2.
Turn
ON
any
one
of
its
waveform
outputs
in
the
Lower
Display.
Using
a
SA
W
wave
will
enable
us
to
hear
the
effects
of
FM
the
best.
STEP
4:
Select the
FM/LAG
Page.
The
Lower
Display
will
permit
you
to
select
either
VC01
of
the
VCF
as
the
FM
DEST
(the
FM
destination).
For
our
experiment,
we'll
use
VC01.
STEP
5:
Gradually
increase
the
FM
AMP
(the
Amount
of
FM)
while
you
are
playing
notes
on
the
keyboard.
What
you
will
hear
will
be
the
new
harmonics
generated
by
the
FM
process.
For
FM
routing
to
the
VCF,
select
the
VCF/VCA
Page
and
turn
the
RES
(Resonance)
parameter
Amount
to
63
and
select
2
POLE
LOW
as
the
Filter
MODE.
By
so
doing,
the
VCF
will
be
in
oscillation
which
is
the
the
point
where
FM
is
best
heard.
118
Matrix-12
Owner's
Manual

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Oberheim Matrix-12 Specifications

General IconGeneral
BrandOberheim
ModelMatrix-12
CategorySynthesizer
LanguageEnglish

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