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Chapter 6 Filter 87
Using the Fuzz-Wah
The following sections cover various aspects of the Fuzz-Wah parameters.
Setting the Wah Level With Auto Gain
The wah effect can cause the output level to vary widely. Turning Auto Gain on
compensates for this tendency, and keeps the output signal within a more stable
range.
To hear the difference Auto Gain can make:
1 Switch Auto Gain to on.
2 Raise the effect level to a value just below the mixer’s clipping limit.
3 Make a sweep with a high relative Q setting.
4 Switch Auto Gain to off, and repeat the sweep.
AutoWah Depth
In addition to using MIDI foot pedals (see above), the wah effect can be controlled
using the Auto Wah facility. The sensitivity of the Auto Wah can be set with the Depth
parameter. Range: 0.00 to 100.
Relative Q
The quality of the main filter peak can be increased/decreased, relative to the model
setting, thereby obtaining a sharper/softer wah sweep. When set to a value of 0, the
original setting of the model is active. Range: –1.00 to +1.00 (0.00 is the default)
Setting the Pedal Range
Common MIDI foot pedals have a much larger mechanical range than most classic Wah
pedals.
The exact sweep range of the wah filter effected by the MIDI foot pedal is set with the
Pedal Range parameters. The highest and lowest possible value reached by the pedal is
graphically represented by a gray bracket around the Pedal Position fader (represents
the current position of the Wah pedal). The left and right limit is set by clicking and
moving it with the mouse. Both values can be moved simultaneously by clicking in the
center of the bracket and moving it to the left or right.
Warning: Please take care while doing this, or your ears and speaker system may be
damaged.