Korg pa 900 User Manual page 368

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Effects
364
EQ and Filters (EQ/Filter)
11: St. Vintage Wah
(Stereo Vintage/Custom Wah)
This effect simulates the tonal character of a vintage wah pedal.
You can customize the tone and range settings.
Stereo In - Stereo Out
Left
Envelope Sens
Sweep Mode
+
Auto
Response
D-mod
D
-mod
LFO
LFO
Right
Mode
Preset, Custom
a
Shape
–100...+100
Invert
Off, On
Frequency
0...100
Bottom
b
Frequency Top 0...100
Resonance
0...100
Bottom
c
Resonance Top 0...100
Auto,
Sweep Mode
D-mod,
LFO
d
Src
Off...Tempo
Manual
0...100
Envelope Sens 0...100
e
Response
0...100
LFO Frequency
0.02...20.00
[Hz]
f
Src
Off...Tempo
–20.00...
Amt
+20.00
MIDI Sync
Off, On
MIDI,
BPM
40.00...
g
300.00
Base Note
r...w
Times
x1...x32
Output Level
0...100
h
Src
Off...Tempo
Amt
–100...+100
Dry, 1:99...99:1,
Wet/Dry
Wet
i
Src
Off...Tempo
Amt
–100...+100
a: Shape
This parameter specifies the sweep curve of the wah. It applies to
all control via auto-wah, modulation source, and LFO, and lets
you adjust subtle nuances of the wah effect.
FX Amt
Wah
Shape / Invert
Mode
Preset Setting
Custom Parameters
Wah
FX Amt
Selects either preset or custom
settings
Sets the curve of the sweep
Inverts the polarity of the sweep
Sets the lower limit of the wah
center frequency when Mode =
Custom
Sets the upper limit of the wah
center frequency when Mode =
Custom
Sets the lower limit of resonance
amount when Mode=Custom
Sets the upper limit of resonance
amount when Mode=Custom
Selects the control from auto-wah,
modulation source, and LFO
Selects the modulation source for
the wah when Sweep Mode=D-mod
Sets the center frequency when
Sweep Mode=D-mod and
Source=Off
Sets the auto-wah sensitivity
Sets the speed of response when
Sweep Mode=Auto or D-mod
Sets the speed of the LFO
Selects a modulation source for LFO
speed
Sets the modulation amount of LFO
speed
When this is on, the LFO speed is set
by BPM, Base Note, and Times,
instead of Frequency
MIDI syncs to the system tempo; 40–
300 sets the tempo manually for this
individual effect
Selects the type of notes that
specify the LFO speed
Sets the number of notes that
specify the LFO speed
Sets the output level of the effect
sound
Selects the modulation source that
will control the effect output level
Sets the modulation amount of the
effect output level
Balance between the wet and dry
signal
Table , "Dynamic Modulation
sources, " on page 357
Amount of modulation source
a: Mode
b: Frequency Bottom
b: Frequency Top
c: Resonance Bottom
c: Resonance Top
If Mode=Preset, this simulates a vintage wah pedal. In this case,
internally fixed values are used for Frequency Bottom/Top and
Resonance Bottom/Top, and these settings will be ignored. The
settings for Frequency Bottom/Top and Resonance Bottom/Top
are valid if Mode=Custom.
12: St. Random Filter
(Stereo Random Filter)
This stereo band pass filter uses a step-shape waveform and ran-
dom LFO for modulation. You can create a special effect from
filter oscillation.
Stereo In - Stereo Out
Left
Right
LFO: Step-Tri/Random
Step-Tri,
LFO Waveform
Random
a
LFO Phase
–180...+180
[degree]
LFO Frequency
0.02...20.00
[Hz]
b
Src
Off...Tempo
–20.00...
Amt
+20.00
LFO Step Freq
0.05...50.00
[Hz]
c
–50.00...
Amt
+50.00
MIDI Sync
Off, On
MIDI,
BPM
40.00...
d
300.00
Base Note
r...w
Times
x1...x32
Step Base Note r...w
e
Times
x1...x32
Manual
0...100
Src
Off...Tempo
f
Amt
–100...+100
Depth
0...100
g
Src
Off...Tempo
Amt
–100...+100
h Resonance
0...100
-Wet, -
Wet/Dry
1:99...Dry...99:1
, Wet
i
Src
Off...Tempo
Amt
–100...+100
FX Amt
Filter
Filter
FX Amt
LFO Phase
Selects the LFO Waveform
Sets the LFO phase difference
between the left and right
Sets the speed of the LFO
Selects the modulation source used
for both LFO speed and step speed
Sets the modulation amount of LFO
speed
Sets the LFO step speed (speed that
changes in steps
Sets the modulation amount of LFO
step speed
When this is on, the LFO speed is set
by BPM, Base Note, and Times,
instead of Frequency
MIDI syncs to the system tempo; 40–
300 sets the tempo manually for this
individual effect
Selects the type of notes that
specify the LFO speed
Sets the number of notes that
specify the LFO speed
Selects the type of notes to specify
the LFO step speed
Sets the number of notes to specify
the LFO step speed
Sets the filter center frequency
Selects the modulation source for
the filter center frequency
Sets the modulation amount for the
filter center frequency
Sets the modulation depth of filter
center frequency
Selects the modulation source of
filter modulation
Sets the modulation amount of filter
modulation
Sets the resonance amount
Balance between the wet and dry
signal
Table , "Dynamic Modulation
sources, " on page 357
Amount of modulation source

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