Roland MV-8800 Appendices page 42

Effect Block
20 Guitar Multi
Comp (Comp/Sustainer)
This effect compresses the level of the signal by reducing the
level of strong input signals and boosting low-level signals.
Output Level
Value: 0–100
This adjusts the Compressor volume level.
Tone
Value: 0–100
This adjusts the compressor tone.
Attack
Value: 0–100
This adjusts the attack strength when the sound is input.
Sustain
Value: 0–100
This adjusts the length of time that the compressor
continues to raise and hold the level of weak input.
A-42
MV-8800 Appendices
Wah (Auto Wah)
Wah is an effect created by the periodic change in a filter's
frequency characteristics, giving a particular kind of tone
change. You can get the wah effect by changing the volume
of the input sound or by using cyclical time-based changes.
Filter Type
Value: LPF, BPF
When set to BPF, the wah effect occurs within a narrow
frequency range; setting this to LPF produces the wah
effect over a wide range of frequencies.
Trigger Sens
Value: 0–100
Sets the sensitivity level when wah is added through
changes in the source sound volume. The wah effect is
added at lower volumes as the volume increases. Set
this to 0 if the wah effect is not to be added in response
to changes in the volume of the input sound.
Peak
Value: 0–100
This sets the amount of wah effect near the reference
frequency. The range narrows as the value increases;
lower the value to get the wah effect over a wider range.
Freq
Value: 0–100
This sets the reference frequency for the wah effect (the
frequency at which the wah starts).
Polarity
Value: Down, Up
When the wah effect is added through changes in the
source sound volume, this setting is for selecting
whether the effect is to be added to the high frequencies
(Up) or lower frequencies (Down).