Roland GR-55 Owner's Manual page 46

Guitar synthesizer
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Effect Settings (EFFECT)
02: SUPER FILTER
This is a filter with an extremely sharp slope. The cutoff frequency can be varied
cyclically.
L in
Super Filter
R in
Super Filter
Parameter
Value
Selects the type of filter.
Specifies the frequencies allowed to pass through the
filter.
LPF
FILTER TYPE #
BPF
HPF
NOTCH
Specifies the slope of the filter (steepness, in terms of the
attenuation per octave).
-12 dB
FILTER SLOPE
-24 dB
-36 dB
FILTER CUTOFF #
0–100
FILTER
0–100
RESONANCE #
FILTER GAIN #
0–+12 dB
MODULATION SW
OFF, ON
Specifies how the cutoff frequency will be modulated.
TRI
SQR
SIN
SAW1
MODULATION WAVE
SAW2
SAW1
RATE
0–100, BPM –
DEPTH
0–100
ATTACK
0–100
LEVEL
0–100
46
L out
R out
Description
Frequencies below the cutoff
Frequencies in the region of the
cutoff
Frequencies above the cutoff
Frequencies other than the
region of the cutoff
Gentle
Steep
Extremely steep
Adjusts the cutoff frequency of
the filter.
Increasing this value will raise the
cutoff frequency.
Adjusts the filter resonance level.
Increasing this value will
emphasize the region near the
cutoff frequency.
Adjusts the amount of boost for
the filter output.
This is the on/off switch for cyclic
change.
Triangle wave
Square wave
Sine wave
Sawtooth wave (upward)
Sawtooth wave (downward)
SAW2
Adjusts the rate of modulation.
Adjusts the depth of modulation.
Adjusts the speed at which the
cutoff frequency will change.
This is effective if MODULATION
WAVE is SQR, SAW1, or SAW2.
Adjusts the output volume.
03: PHASER
This is a stereo phaser. A phase-shifted sound is added to the original sound and
modulated.
L in
Phaser
R in
Phaser
Parameter
Value
4-STAGE,
MODE
8-STAGE,
12-STAGE
MANUAL #
0–100
RATE #
0–100, BPM –
DEPTH #
0–100
Selects whether the left and right phase of the modulation
will be the same or the opposite.
INVERSE
POLARITY
SYNCHRO
RESONANCE #
0–100
CROSS
-98–+98%
FEEDBACK
MIX
0–100
LOW GAIN
-15–+15 dB
HIGH GAIN
-15–+15 dB
LEVEL
0–100
04: STEP PHASER
This is a stereo phaser. The phaser effect will be varied gradually.
L in
Step Phaser
Step Phaser
R in
Parameter
Value
4-STAGE,
MODE
8-STAGE,
12-STAGE
MANUAL #
0–100
RATE #
0–100, BPM –
DEPTH
0–100
2-Band
L out
EQ
Mix
Mix
2-Band
R out
EQ
Description
This sets the number of stages in
the phaser.
Adjusts the basic frequency
from which the sound will be
modulated.
Adjusts the rate of the
modulation.
Adjusts the depth of modulation.
The left and right phase will be
opposite. When using a mono
source, this spreads the sound.
The left and right phase will
be the same. Select this when
inputting a stereo source.
Adjusts the amount of feedback.
Adjusts the proportion of the
phaser sound that is fed back
into the effect. Negative (-)
settings will invert the phase.
Adjusts the level of the phase-
shifted sound.
Adjusts the gain of the low range.
Adjusts the gain of the high
range.
Adjusts the output volume.
2-Band
L out
EQ
Mix
Mix
2-Band
R out
EQ
Description
Specifies the number of stages in
the phaser.
Adjusts the basic frequency
from which the sound will be
modulated.
Adjusts the rate of the
modulation.
Adjusts the depth of modulation.

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