Korg Electric Keyboard Electronic Keyboard User Manual


 
Effect
169
a: FreqBottm, a: FreqTop
The sweep width and direction of the wah filter are determined
by the “FreqBottm” and “FreqTop” settings.
b: Swp Mode
This parameter changes the wah control mode. Setting “Swp
Mode” to Auto will select an auto-wah that sweeps according to
envelope changes in the input signal level. Auto-wah is frequently
used for funk guitar parts and clav sounds.
When “Swp Mode” is set to Dmod, you can control the filter
directly via the modulation source in the same way as a wah
pedal.
When “Swp Mode” is set to LFO, the effect uses LFO to sweep in
cycle.
d: Envelope Sens
This parameter sets the sensitivity of auto-wah. Increase the value
if the input signal is too low to sweep. Reduce the value if the
input signal is so high that the filter is stopped temporarily.
e: Envelope Shape
This parameter determines the sweep curve for auto-wah.
f: lfoF, g: BPM/MIDI Sync
When “BPM/MIDI Sync”=Off, the LFO speed uses the lfoF
parameter setting. When “BPM/MIDI Sync”=On, the LFO speed
follows the “BPM”, “Base”, and “Times” settings.
g: BPM, g: Base, g: Times
One cycle of LFO sweep is obtained by multiplying the length of a
note () (selected for “Base”, in relation to the tempo specified
in (“BPM”, or the MIDI Clock tempo if “BPM” is set to MIDI) by
the number specified in the Times parameter.
10: St.Rndm Filter
(Stereo Random Filter)
This stereo band pass filter uses a step-shape waveform and
random LFO for modulation. You can create a special effect
from filter oscillation.
a: LFO Wave, c: Freq, d: Step
When “LFO Wave” is set to Step-Tri, LFO is a step-shape, triangle
waveform. The “Freq” parameter sets the original triangle wave-
form speed. Changing the “Step” parameter enables you to adjust
the width of the steps.
Frequency
Bottom=25
Top=75
Higher
Max
Zero
Higher
D
-mod
Frequency
Bottom=60
Top=30
Higher
Max
Zero
Higher
D
-mod
Sweep Mode=D-mod
Frequency
Bottom=25
Top=75
Higher
Frequency
Bottom=75
Top=25
Higher
Sweep Mode=Auto
Envelope
Envelope
Time
Wah
Woo
Woo
Woo
Envelope
Wah Wah
Time
Woo
Woo
Wah
Wah
Time
Level
Envelope
value = 0...–100
value = 0...+100
Envelope Shape
a
LFO Wave (LFO Waveform)
Selects LFO Waveform
Step-Tri, Random
b
LFO Phase –180...+180deg
Sets the LFO phase difference between the left and right
c
Freq (LFO Frequency)
Sets the LFO speed
0.02...20.00Hz
,
(Source) Off...Tempo
Selects the modulation source used for both LFO speed and step
speed
(Amount) –20.00...+20.00Hz
Sets the modulation amount of LFO speed
d
Step (LFO Step Frequency) 0.05...50.00Hz
Sets the LFO step speed (speed that changes in steps) ,
(Amount) –50.00...+50.00Hz
Sets the modulation amount of LFO step speed
e
Manual
Sets the filter center frequency
0...100
Resonance
Sets the resonance amount
0...100
f
BPM/MIDI Sync Off, On
Switches between using the frequency of the LFO speed and using
the tempo and notes
Fx:09,
BPM
Selects MIDI Clock and assigns tempo
MIDI, 40...240
Fx:09,
Base (Base Note)                  
Selects the type of notes that specify the LFO speed Fx:09
Times x1...x16
Sets the number of notes that specify the LFO speed Fx:09
g
StepBase (Step Base Note)                       
Selects the type of notes to specify the LFO step speed ,
Times x1...x32
Sets the number of notes to specify the LFO step speed
h
Depth 0...100
Sets the modulation depth of filter center frequency
(Source)
Selects the modulation source of filter modula-
tion
Off...Tempo
(Amount)
Sets the modulation amount of filter modulation
–100...+100
i
W/D (Wet/Dly) –Wet...–1:99, Dry, 1:99...Wet
Sets the balance between the effect and dry sounds ,
(Source) Off...Tempo
Selects the modulation source of the effect balance
(Amount)
Sets the modulation amount of the effect balance
–100...+100
Filter
Left
Right
Wet / Dry
Wet / Dry
Stereo In - Stereo Out
Filter
LFO Phase
LFO: Step-Tri/Random