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Oberheim Matrix-12 - Res - Resonance; Mode

Oberheim Matrix-12
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MATRIX-12
is
determined
by
the
waveform
you
selected
with
the
VCOs.
The
amount
is
set
with
FREQ.
The
VALUE
X
range
of
the
VCF
is
from
0
to
127.
Assuming
that
you
are
using
one
of
the
LOW
PASS
Modes,
0
represents
the
minimum
orfewest
harmonics
and
127
is
the
maximum
setting
where
all
the
audible
harmonics
for
that
waveform
are
present.
Another
way
of
stating
this
is
that
for
the
LOW
PASS
Modes,
an
amount
of
0
makes
the
Patch
sound
muffled
or
dull
and
higher
amounts
approaching
127
causes
the
Patch
to
sound
bright
and
buzzy.
The
response
of
the
numerical
Filter
settings
depends
greatly
on
the
MODE
that
you have
selected
as
each
of
the
Modes
filters
the
harmonics
differently.
We
will
cover
the
charteristics
of
the
VCF
Modes
in
just
a
moment.
The
word
"frequency"
is
used
because
each
harmonic
has
its
own
specific
pitch
and
thus
the
Filter
can be
"tuned".
The
tuning
of
the
Filter,
therefore,
depends
upon
what
VALUE
X
amount
(0
to127)
you
give
it.
RES
"Resonance"
-The
Resonance
Parameter
is
used
to
emphasize
the
harmonic
closest
to
the
Filter's
FREQ.
This
control
actually
increases
the
loudness
or
"gain"
of
this
harmonic,
resulting
in
a
ringing
orwhistling
effect
as
more
RES
is
used.
This
parameter
is
especially
useful
in
synthesizing
the
resonant
characteristics
of
acoustic
instruments
(particularly
woodwinds)
and
to
achieve
many
other
electronic
special
effects.
Amount
value
range
is
from
0
to
63
where
0
indicates
no
Resonance
and
63
is
maximum.
At
a
Resonance
setting
of
63,
the
VCF
will
oscillate-that
is,
produce
its
own
pure
tone.
MODE
The
expanded
VCF
of
the
MATRIX-12
Voice
contains
no
less
than
15
Filter
Modes
that
are
used
to
control
the
harmonic
content
of
the Patch.
The
operating
mode
of
the
Filter
is
the
primary
function
in
determining
the
basic
tonality
of
the
sound.
Thus;
the
"personality"
of
the
Patch
depends
upon
the
MODE
you
select:
the
way
that
the
VCF
will
filter
the
harmonics
of
the
VCOs1
waveforms.
The
majority
of
analog
synthesizers
have
only
one
or
two
Filter
modes.
Some
utilize
"Low
Pass"
and
"High
Pass"
filtering
or
just
Low
Pass
with
two
or
more
poles.
The
MATRIX-12
Voice
has
four
Low
Pass
modes
and
three
High
Pass
modes
plus
some
very
specialized
modes
including
two
Band
Pass
modes,
a
Notch
or
"Band
Reject"
mode
and
a
Phase
Shift
mode.
For
added
flexibility,
the
MATRIX-12
also
includes
four
unique
modes
by
combining
the
filtering
capabilities
of
the
1-Pole
Low
Pass
mode
with
the
High
Pass,
Notch
and
Phase
Shift
modes.
112
Matrix-12
Owner's
Manual

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