Roland GR-55 Owner's Manual page 35

SYNTH
ANALOG-GR
Group Parameter
MODE #
TONE
COMP
FILTER CUTOFF #
FILTER RESO #
This automatically varies the VCF cutoff frequency according to the amplitude of the string vibrations. This causes a wah-like tonal change each time you
pluck the string.
ENV MOD SW
ENV
ENV MOD SENS
ENV MOD ATTACK
Value Description
Specifies whether to sound the hexa-VCO (sawtooth wave), the hexa-distortion (square wave), or both.
VCO Only the hexa-VCO will sound.
V+D The hexa-VCO and hexa-distortion will sound together.
DIST Hexa-distortion will sound.
If this is "ON, " the decay time of the hexa-VCO will be extended. If ENV MOD SW is "ON, "
the decay time of the VCF (variable frequency filter) will also be extended.
OFF, ON
* The decay time of the hexa-distortion will not be extended .
Adjusts the VCF cutoff frequency, specifying the brightness of the sound. Higher
0–100
settings will make the sound brighter.
Adjusts the VCF resonance (unique characteristics). Higher settings will boost the
0–100 sound in the region of the cutoff frequency, producing a sound with more distinctive
characteristics.
OFF The envelope modulator will not be used.
Each time you pluck the string, the VCF cutoff frequency will move from high toward
low, producing a "wah" effect.
ON
MEMO
Extremely high cutoff frequency settings will make this effect difficult to discern.
Each time you pluck the string, the VCF cutoff frequency will move from low toward
high, producing an "oo-ahh" that is the opposite of the "wah" effect.
INV
MEMO
Fairly high cutoff frequency settings will make this effect easier to discern.
Adjusts the input sensitivity of the envelope modulation. Higher settings of this value
will increase the range of envelope modulation that occurs when you pluck a string
softly.
0–100 MEMO
Listen to how the sound is affected while you adjust this parameter. Start with the
setting at about "0, " and play while you gradually raise the value.
Setting ENV MOD ATTACK to "0" will make it easier to hear the change.
Adjusts the attack time of the envelope modulation that occurs when you play a
0–100 string.
Higher values produce a slower attack.
Editing the Tones (TONE)
35