KORG Pa300 Arranger - Manual (Page 314)

310 Effects
Modulation and Pitch Shift (Mod./P.Shift)
45: Stereo Tremolo
This effect modulates the volume level of the input signal. The
effect is stereo, and offsetting the LFO of the left and right phases
from each other produces a tremolo effect between left and
right.
a: LFO Waveform
This parameter sets the basic shape of the LFO. The Vintage
waveform models classic guitar-amp tremolo.
b: LFO Phase [degree]
This parameter determines the difference between the left and
right LFO phases. A higher value will simulate the auto-pan
effect in which the sound is panned between left and right.
46: St. Env. Tremolo
(Stereo Envelope Tremolo)
This effect uses the input signal level to modulate a stereo trem-
olo (LFO volume modulation). For instance, you can create a
tremolo effect that becomes deeper and faster as the input gets
more quiet.
d: LFO Frequency [Hz]
d: Envelope Amount [Hz]
e: Depth
e: Envelope Amount
The graphic below shows an example of tremolo modulation
with negative modulation of both
Depth and Frequency . At the
start of the note, the input is at maximum volume. This slows
down the LFO
Frequency to 1.0Hz , but also modulates the
Depth to 0 –so the tremolo doesn’t have any effect.
As the input volume dies down, the Frequency speeds up; the
Depth also increases, making the tremolo effect increasingly
audible. When the input volume approaches silence, the Depth
is at its maximum ( 100 ) and Frequency is at 8Hz .
a
LFO Waveform
Triangle, Sine,
Vintage, Up,
Down
Selects the LFO Waveform
LFO Shape –100...+100
Changes the curvature of the LFO
Waveform
b
LFO Phase
[degree]
–180...+180
Sets the LFO phase difference
between the left and right
c
LFO Frequency
[Hz]
0.02...20.00 Sets the speed of the LFO
Src Off...Tempo
Selects a modulation source for LFO
speed
Amt
–20.00...
+20.00 Sets the modulation amount of LFO
speed
d
MIDI Sync Off, On
When this is on, the LFO speed is set
by BPM, Base Note, and Times,
instead of Frequency
BPM
MIDI,
40.00...
300.00 MIDI syncs to the system tempo; 40–
300 sets the tempo manually for this
individual effect
Base Note r...w
Selects the type of notes that
specify the LFO speed
Times x1...x32
Sets the number of notes that
specify the LFO speed
e
Depth 0...100 Sets the depth of LFO modulation
Src Off...Tempo
Selects the modulation source of
the depth of modulation
Amt –100...+100
Sets the modulation amount of the
depth of modulation
f
Wet/Dry
Dry, 1:99...99:1,
Wet Balance between the wet and dry
signal
Src Off...Tempo
Table , “Dynamic Modulation
sources,” on page 283
Amt –100...+100 Amount of modulation source
Left
Right
FX Amt
FX Amt
Stereo In - Stereo Out
LFO Phase
LFO: Tri/Sin/Vintage/Up/Down LFO Shape
Tremolo
Tremolo
Tremolo - LFO Waveform
Triangle Sine Vintage Up Down
a
Envelope Sens 0...100
Sets the envelope’s sensitivity to the
input signal
Envelope
Shape
–100...+100 Sets the envelope’s curvature
b
LFO Waveform
Triangle, Sine,
Vintage
Selects the LFO Waveform
LFO Shape –100...+100
Changes the curvature of the LFO
Waveform
c
LFO Phase
[degree]
–180...+180
Sets the LFO phase difference
between the left and right
d
LFO Frequency
[Hz]
0.02...20.00 Sets the speed of the LFO
Envelope
Amount [Hz] –20.00...
+20.00
Sets the amount added to or
subtracted from the Frequency
when the envelope is at maximum
e
Depth 0...100 Sets the initial amount of tremolo
Envelope
Amount
–100...+100
Sets the amount added to or
subtracted from the Depth when
the envelope is at maximum
f
Wet/Dry
Dry, 1:99...99:1,
Wet Balance between the wet and dry
signal
Src Off...Tempo
Table , “Dynamic Modulation
sources,” on page 283
Amt –100...+100 Amount of modulation source
Left
Right
FX Amt
FX Amt
Stereo In - Stereo Out
LFO Phase
LFO Shape
Envelope Sens
+ Envelope
LFO: Tri/Sin/Vintage
Envelope Shape
Tremolo
Tremolo
Level
L
o
u
d
e
r
Time
Shimmer
LFO Frequency[Hz]=8.0
Envelope Amount[Hz]= –7.0Hz
Depth=100
Envelope Amount= –100 Dry Envelope