Korg PA1X User Manual page 339

009: Wah/AutoWah
This stereo wah effect allows you to create sounds from vintage
wah pedal simulation to auto-wah simulation, and much
broader range settings.
Stereo In - Stereo Out
Left
Envelope Sens
+
Envelope Shape
Response
D -mod
LFO
Right
Frequency Bottom
Sets the lower limit of the wah center frequency
a
Frequency Top
Sets the upper limit of the wah center frequency
Sweep Mode
Selects the control from auto-wah, modulation source, and LFO
b Src
Selects the modulation source for the wah when Sweep Mode=D-mod
Response
Sets the response speed when Sweep Mode = Auto or D-mod
Envelope Sens (Envelope Sensitivity)
Sets the sensitivity of auto-wah
c
Envelope Shape
Sets the sweep curve of auto-wah
LFO Frequency [Hz]
Sets the LFO speed
Src
d
Selects the modulation source of LFO speed
Amt
Sets the modulation amount of LFO speed
BPM/MIDI Sync
Switches between using the frequency of the LFO speed and using the
tempo and notes
BPM
Selects MIDI Clock and assigns tempo
e
Base Note
Selects the type of notes that specify the LFO speed
Times
Sets the number of notes that specify the LFO speed
Resonance
Sets the resonance amount
f
Low Pass Filter
Switches the Wah Low Pass Filter on and off
Wet/Dry
Table , "Sets the balance between the effect and dry sounds," on page 330
Src
g
Table , "Selects the modulation source of the effect balance," on page 330
Amt
Table , "Sets the modulation amount of the effect bal-
ance," on page 330
Wet / Dry
Wah
Sweep Mode
Auto
D-mod
LFO
Wah
Wet / Dry
0...100
☞
0...100
☞
Auto, D-mod, LFO
☞
,
Off...Tempo
0...100
0...100
☞
–100...+100
☞
0.02...20.00Hz
☞
,
Off...Tempo
–20.00...+20.00Hz
Off, On
☞
,
MIDI, 40...240
☞
, , , , , , ,
☞
x1...x16
☞
0...100
Off, On
Dry, 1:99...99:1, Wet
Off...Tempo
–100...+100
a: Frequency Bottom, a: Frequency Top
The sweep width and direction of the wah filter are determined
by the "Frequency Top" and "Frequency Bottom" settings.
Frequency
Top=75
Wah
Woo
Bottom=25
D
Higher
Zero Max
Frequency
Wah
Top=75
Woo
Woo
Bottom=25
Envelope Time
b: Sweep Mode
This parameter changes the wah control mode. Setting "Sweep
Mode" to Auto will select an auto-wah that sweeps according to
envelope changes in the input signal level. Auto-wah is fre-
quently used for funk guitar parts and clav sounds.
When "Sweep Mode" is set to D-mod, you can control the filter
directly via the modulation source in the same way as a wah
pedal.
When "Sweep Mode" is set to LFO, the effect uses LFO to sweep
in cycle.
c: Envelope Sens (Envelope Sensitivity)
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.
c: Envelope Shape
This parameter determines the sweep curve for auto-wah.
Level
value = 0...+100
value = 0...–100
d: LFO Frequency [Hz], e: BPM/MIDI Sync
When "BPM/MIDI Sync"=Off, the LFO speed uses the LFO Fre-
quency parameter setting. When "BPM/MIDI Sync"=On, the LFO
speed follows the "BPM", "Base Note", and "Times" settings.
e: BPM, e: Base Note, e: Times
One cycle of LFO sweep is obtained by multiplying the length of a
note ( ... ) (selected for "Base Note", 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.
Effects 335
Filter/Dynamic
Sweep Mode=D-mod
Frequency
Bottom=60
Wah
Woo
Top=30
-mod D -mod
Higher
Zero Max
Sweep Mode=Auto
Frequency
Wah Wah
Bottom=75
Envelope
Top=25
Woo
Envelope Time
Envelope Shape
Envelope
Time