Filter
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07: Wah/Auto Wah
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a: Frequency Bottom
b: Frequency Top
The sweep width and direction of the wah filter are determined by the Fre-
quency Top and Frequency Bottom settings.
c: 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 frequently 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.
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.
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