The WahWah offers both an AutoWah that reacts to your input guitar signal as well as a Manual Mode that lets you control the effect using an external MIDI control or workstation automation. WahWah provides both classic WahWah sounds as well as Mutron type filter effects. The WahWah Stomp has 5 controls:
SENSITIVITY: 0 to 100; Default 50 Sensitivity controls the sensitivity of the envelope follower. High sensitivity will make even weak input excite the filter’s frequency modulator.
SPEED: 0 to 100; Default 50 Speed controls both the Attack and Release controls of filter modulation. At Low values the Wah takes more time to begin. At high speed it happens immediately.
RANGE: 0 to 100; Default 50 The Range control defines the frequency around which the Wah works. Higher values will generate a brighter and more “quacky” sound while lower values create a more “wobbly” sound.
MODE – Auto/Manual; Default: Auto Auto mode turns the pedal into an Auto Wah. Manual Mode enables MIDI or mouse control of the Wah pedal.
WAH: 0 to 1; Default: 0.5 When set to Manual, this is the frequency of the Wah filter at any given time. This controls where you are between the “ooo” (U) or “aaa” (A) spectrum in the Wah sound.
Waves Guitar Tool Rack User Guide.