Boss Dr. Rhythm DR-880 Owner's Manual page 94

Guitar effects parameter list
■ COMPRESSOR: GTR MULTI
This effect produces long sustain by making the
volume of the input signal more uniform. You can
also use this as a "limiter" to prevent distortion by
holding down just the peaks of the sound.
Parameter/
Range
Sustain
Adjusts the duration of time over
0–100 which low-level input signals will
be boosted to a steady volume
Higher settings of this parameter will produce longer
sustain.
Level
0–100 Volume of the effect sound
■ A-WAH (Auto wah)
This effect automatically creates a wah effect by
sweeping a filter in a fixed pattern.
Parameter/
Range
Polarity
Specifies the direction that the filter
UP, DOWN
moves in response to the input
UP:
The filter will move toward a higher frequency.
DOWN:
The filter will move toward a lower frequency.
Sens
Specifies the sensitivity of the filter
0–100
movement
Freq
0–100 Center frequency of the wah effect
Peak
Depth of the wah effect in the re-
0–100
gion of the center frequency
Higher values produce a stronger tone which empha-
sizes the wah effect more. A setting of "50" produces
the typical wah sound.
Rate
0–100,
Auto wah rate (speed)
BPM –BPM
* If you set this to BPM, the effect will synchronize to the
tempo of the pattern. If this produces a cycle that is too
fast, the effect will synchronize to 1/2 or 1/4 of the actual
BPM.
94
Explanation
Explanation
Parameter/
Range
Depth
0–100 Depth of the wah effect
Level
0–100 Volume of the effect sound
■ P-WAH (Pedal wah)
This effect produces the sound of a wah pedal.
* If an expression pedal (Roland EV-5; sold separately) is
connected to the rear panel CTL3, 4/EXP PEDAL jack,
the expression pedal will function as a wah pedal.
Parameter/
Range
Level
0–100 Volume of the effect sound
■ CHORUS
This effect creates a beautifully rich and spacious
sound by adding a slightly pitch-modulated
sound to the sound of the guitar or bass.
Parameter/
Range
Rate
0–100,
Effect modulation rate
BPM –BPM
* If you set this to BPM, the effect will synchronize to the
tempo of the pattern. If this produces a cycle that is too
fast, the effect will synchronize to 1/2 or 1/4 of the actual
BPM.
Depth
0–100 Depth of the effect
E.Level
0–100 Volume of the chorus sound
Explanation
Explanation
Explanation