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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