65
ZOOM B9.1ut
Effect Types and Paramet ers
COMP (Compressor) module
This module includes a com pressor which at tenuates high-le vel signal compon ents and boosts low- level
signal components to keep t he signal level withi n a certain range , and a limiter which co ntrols signal pea ks to
keep the signal level below a cer tain limit.

Compressor

This is a compressor whic h stresses the se nse of attack.
PARM1 PARM2 PA RM3 PARM4
Sense
0 – 50
Attack
1 – 10
Release
1 – 10
Level
2 – 100
Adjusts the compressor sensitivity.
Higher setting values result in
higher sensitivity.
Adjusts the compressor attack rate.
Adjusts the delay between the point
where the signal level falls below
the threshold level and the
compressor release.
Adjusts the signal level after
passing the module.

DualComp (Dual Compressor)

This is a compressor whic h allows separate s ettings for the lo w frequency and hi gh frequency ra nge.
PARM1 PARM2 PA RM3 PARM4
SenseHi
0 – 50
SenseLo
0 – 50
XoverFreq
1 –10
Level
2 – 100
Adjusts the compression depth in
the high frequency range.
Adjusts the compression depth in
the low frequency range.
Adjusts the crossover point
between the high frequency and
low frequency range.
Adjusts the signal level after
passing the module.

M Comp (M Compressor)

This is a compressor with na tural operati on.
PARM1 PARM2 PA RM3 PARM4
Threshold
0 – 50
Ratio
1 – 10
Attack
1 – 10
Level
2 – 100
Adjusts the reference signal level
for the compressor action.
Adjusts the compression ratio of
the compressor. Adjusts the compressor attack rate. Adjusts the signal level after
passing the module.

Limiter

This is a limiter that suppre sses signal pea ks above a certai n reference level .
PARM1 PARM2 PA RM3 PARM4
Threshold
0 – 50
Ratio
1 – 10
Release
1 – 10
Level
2 – 100
Adjusts the reference signal level
for the limiter action.
Adjusts the compression ratio of
the limiter.
Adjusts the delay between the point
where the signal level falls below
the threshold level and the limiter
release.
Adjusts the signal level after
passing the module.
WAH/EFX1 (Wah/Eff ects 1) module
This module comprises wa h and fi lter effects as well as special ef fects such as ring m odulator and octa ve.

AutoWah

This effect varies wah in ac cordance with pi cking intensit y.

A-Resonance (Auto Resonance)

This effect varies the re sonance fi lter frequency in accor dance with pick ing intensity.
The above two effect types have the same pa rameters.
PARM1 PARM2 PA RM3 PARM4
Position
Befr, Aftr
Sense
-10 – 10
Resonance
0 – 10
DryMix
0 – 100
Selects the connection position of
the WAH/EFX1 module. Available
settings are "Befr" (before pre-am p
section) or "Aftr" (after pre-amp
section).
Adjusts the effect sensitivity.
Negative values result in downward
fi lter action.
Adjusts the intensity of the effect
character.
Adjusts the original sound mixi ng
ratio.

AutoFilter

This is a resonance fi lter with a sharp envelope .
PARM1 PARM2 PA RM3 PARM4
Position
Befr, Aftr
Sense
-10 – 10
Peak
0 – 10
DryMix
0 – 100
See "A-Resonance (Auto
Resonance)". Adjusts the effect sensitivity. Adjusts the Q value of the fi lter. Adjusts the original sound mixi ng
ratio.