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Oberheim Matrix-12 - The Ramps (RAMP X); LFO Amplitude and Speed Modulation by a RAMP

Oberheim Matrix-12
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The
Ramps
(RAMP
X)
As
we
stated
in
the
section
on
RAMP
X,
Ramps
are
commonly
used
to
simply
increase
or
decrease
a
parameter's
initial
VALUE
X
amount
or
another
modulation
in
the
Patch.
LFO
Amplitude
and
Speed
Modulation
by
a
RAMP
Modulating
an
LFOfs
amplitude
or
depth
with
a
Ramp
is
one
example
of
how
a
Ramp
can be
used
to
introduce
LFO
modulation
into
the
Patch.
Using
a
Ramp
to
increase or
decrease
the
LFO's
SPEED
is
another example.
1.
Select
VC01.
Select
FREQ
as
the
Destination
to
be
modulated.
2.
Assign
LFO
1
as
the
Modulation
Source.
Set
is
VALUE
X
amount
to
+63.
3.
Select
LF01.
Set
its
AMP
amount
to
0.
Select
AMP
as
the
Destination
to
be
modulated.
4.
Assign
RAMP1
as
the
Modulation
Source.
Set
its
VALUE
X
amount
to
+63.
5.
Select
RAMP
1.
Set
its
Page
1
RATE
to
about
60.
Press
and
hold
a
key
on
the
MATRIX-12's
Keyboard.
What
you
will
hear
is
RAMP
1
gradually
fade
the
effect
of
LF01
into
the
sound.
6.
LFO
SPEED
modulation
is
achieved
by
re-selecting
LF01,
turning
its
SPEED
down
to
about
30
and
assigning
RAMP1
as
the
Modualtion
Source
with
an
amount
of
+63.
Play
and
hold
a
key
and
as
the
LFO
modulation
fades
in
as
before,
it
will
also
speed
up.
These
two
examples
operate
in
the
same
way.
VALUE
X
range
is
from
-63
to
+63.
0,
as
always,
indicates
no
effect
by
the
RAMP.
Using
positive
numbers
increases
the
AMP
or
the
SPEED
from
their
initial
settings.
Using
negative
numbers,
which
invert
the
Ramp,
decreases
the
LFO's
output
or
rate.
MATRIX
MODULATION
provides
almost
unlimited
resources
in
obtaining
specialized
modulation
routings
in
a
SINGLE
Patch.
The
examples
given
in
this
section
are
just
a
few
of
the
many
things
that
you
accomplish.
We've
suggested
some
standard
routings
that
can
be
used
for
routine
programming
requirements
and
several
routings
that
are
not
as
obvious.
The
MATRIX-12
provides
a
way,
through
MATRIX
MODULATION,
to
achieve
programmable
control
not
possible
on
other
synthesizers.
Just
use
your
imagination.
156
Matrix-12
Owner's
Manual

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