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Korg Sigma Owner's Manual Page 4

Performing synthesizer.
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1.
EFFECT TABLETS
AND MANUAL
CONTRC
FUNCTIONS
OF
MANUAL
CONTROLS
JOYSTICKS®®
Each
of
the
two
joy
sticks
has
its
own
effects
and
uses.
The
left
joy
stick
®
controls
pitch.
Moving
it
up
increases
depth
of vibrato;
moving
it
down
increases
depth
of
noise modulation.
Moving
it
to
the
left
and
right
bends
the pitch
down
and
up.
These
effects
can be
applied
to
the
SYNTHE
and
INSTRUMENT
(ab-
breviated
to
"INST"
in
the following
text)
sections separately,
and
the
range
of
the
effect
in
each
section
can be
adjusted
in-
dependently.
The
right
joy
stick
®
controls the
tone
color
of
the
SYNTHE
section (by varying the
cut-off
frequencies
(fcl
of
a high-pass
VCF
and
low-pass VCF).
Moving
the
stick
up and
down
varies
the
tone
in
the
low
range
(because
frequencies
below
the
HPF
|fc]
are
attenuated).
Moving
it
to
the
right
and
left
varies the
tone
in
the high
range (because
frequencies
above
the
LPF
|fc]
are
attenuated).
Since
the
stick's
position
in
both
directions
determines
tone
color
(timbre),
you can use
this
stick to
vary the
brightness,
fullness,
and
richness
of
the
sound
for real
expressive
freedom
while
playing.
KBD SENSOR
(keyboard
sensor)
Keyboard
sensor
effects
depend
on
how
hard
you
press
down
on
the
keys
(not
how
fast)
when
you
play.
The
left
KBD SENSOR
switch
lets
you choose
rising
or
falling
pitch
bends,
or
a
vibrato
effect.
The more
pres-
sure
on
the keys, the greater the pitch
will
bend,
or the greater the
depth (up
and
down
frequency modulation)
of
the
vibrato.
The
right
KBD
SENSOR
switch
lets
you
apply
the
effect to
just
the
SYNTHE
or
INST
sec-
tion,
or
to
both sections
together.
PORTAMENTO
© © ®
In
the
portamento
effect,
the
change
of
pitch
when
you
play
one
note
after
another be-
comes
smoother
and more
gradual.
There
are
two
switches
on
the
Sigma
that
can be
used
to
turn
on
the
portamento
effect.
One
of
these
is
the button
®
between
the
two
joy
sticks.
This button turns
on
por-
tamento
temporarily.
The
effect
stops as
soon
as
you
release
the button.
The
other
is
the tab switch
®
which
will
keep
the
portamento
effect
on.
In
either
case,
use
the
knob
©
above
the tab switch
to
control
how
gradually
the
pitch
will
change.
BALANCE®
In
the
Korg Sigma,
the
SYNTHE
and INST
sections are
completely independent from
their
VCO's
(voltage controlled
oscillators)
to their
outputs. Therefore, the
volume
bal-
ance between
these two sections
will
greatly
affect
the
tone
color
and
amplitude
varia-
tions
in
the
final
sound,
when
both sections
are
used
together.
You
can
also turn the
balance
knob back and
forth
while
playing,
to
match
the
rhythm
and melody
line.
Tuning
knob
for
the
entire
unit.
Adjusts
pitch
by
more
than
± 200cents
(2
de-
grees).
SYNTHE
section tuning
knob. Adjusts
pitch
by
more
than
±
700cents
(5
de-
grees).
Adjusts
portamento
time.
©
Adjusts
depth
of
KBD SENSOR
effect.
These
adjust
depth
of
JOY
STICK
con-
trolled
effects.
SYNTHE
and
IN-
STRUMENT
section
intensity
can
be
separately adjusted.
Adjusts
depth
of
delayed
vibrato
in
IN-
STRUMENT
section
only.
Adjusts
vibrato
speed
for
all
vibrato
effects.
Flashing
LED
shows
speed.
Adjusts the time
that
vibrato
will
be
de-
layed.
©
These
raise
or
lower the
pitch of
all
effects
by
one
octave.
If
both
tablets
are
depressed,
UP
has
priority.
©
Turns
on portamento
effect.
Turns
on
KBD SENSOR.
Turn
this
tab switch
on
when
you want
to
use
the
left
joy
stick to
bend
(raise
or
lower)
the
pitch
of
SYNTHE
section
effects.
Turn
this
tab switch
on when you
want
to
use
the
left
joy stick
to
bend
the pitch of
INSTRUMENT
section
effects.
©
Turns
on
delayed
vibrato
for
the
IN-
STRUMENT
section
only.
Turns
on
quarter tone
effect.
©
Turns
on
multiple
trigger effect
(so
that
a
separate
trigger signal
is
produced
for
each
note
when
playing
in
a
legatto
style.
When
this
tab
switch
is
on, the
sound
of
the
last
note
played
will
be
held.
Turns
on
power,
and
adjusts
output
signal
level.
Adjusts
relative
volume
of
SYNTHE
sec-
tion
and
INSTRUMENT
section
sound.
For
selecting
KBD SENSOR
effects.
On
the
left
switch,
the
upper
position
(rising
arrow)
_-^*
gives
an upward
pitch
bend.
The
middle
position
(wavy
line)
wi
gives
a
vibrato
effect.
The
lower
position
(falling
arrow)
-^*
gives
a
downward
pitch
bend.
On
the
right
switch, the
upper
position
I
limits
the
effect
to
the
INSTRUMENT
section.
The
center
position
I+S adds
the
effect
to
both
the
INSTRUMENT
and
SYNTHE
sections.
The
lower
position
S
limits
the
effect to
the
SYNTHE
section.
Varies
the pitch
in
different
ways
de-
pending on which
direction
you
move
the
joystick.
Turns
on portamento
for
as
long
as you
keep
pressing
on
the button.
Varies the tone color
of the
SYNTHE
section
depending on which
way
you
move
the joy
stick.

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