Roland GT-PRO Owner's Manual download pdf (Page 50)

Chapter 4 Introduction to Effects and Parameters

Parameter setting included when Wave is set to

“Square” or “Saw.”

Parameter setting included when Wave is set to

“Square.”

AC (Acoustic Processor)

This processor allows you to change the sound produced by

the pickup on an acoustic electric guitar, creating a richer

sound similar to that obtained with a microphone placed

close to the guitar.

PWM Depth

(Pulse Width Modulation Depth)

0–100

Adjusts the depth of the PWM.

When it is set to “0,” no PWM effect is obtained.

Cutoff Frequency

0–100

Adjusts the frequency where the harmonics

contents of the sound are cut off.

Resonance

0–100

Adjusts how much of the harmonics con-

tents around the cutoff frequency should be

emphasized.

Filter Sens

0–100

Adjusts the sensitivity of the filter.

When it is set to a lower value, the filter is affected only with stronger

picking. When it is set higher, the filter changes even with weaker

picking. When it is set to “0,” the depth of the filter will be the same

no matter how the picking strength may be.

Filter Decay

0–100

This sets the time needed for the filter to fin-

ish its sweep.

Filter Depth

-100–+100 Adjusts the depth of the filter.

When the value is higher, the filter will change more drastically. The

polarity of the filter will be opposite with “+” and “-.”

Attack

Decay, 0–100

Adjusts the time needed for a synthesizer

sound to reach its maximum.

When it is set to a lower value, the sound will rise quickly. When it

is set higher, the sound will rise slowly. When it is set to “Decay,” the

sound will rise quickly and turn to a Release status regardless of the

input of the guitar sound.

* When “Brass” or “Bow” is selected for the wave, the attack time will

not be quicker from a certain level even if the attack is set to “Decay” or

“0.”

Release

0–100

This determines the time needed for the

synthesizer sound to reach zero from the

moment the input of the guitar sound is

completed.

* When “Brass” or “Bow” is selected for the wave, the guitar signal itself

is processed. That is, the synthesizer sound will go down when the

guitar signal goes down no matter how long the release may be set.

Velocity

0–100

This adjusts the amount of the volume

change of the synthesizer sound.

When it is set to high, the volume change will be greater depending

on the picking strength. When it is set to “0,” no volume change is

caused even by changing the picking manner.

Hold *1

Off, On

The hold function can sustain the output of

the synthesizer sound.

If you turn on the hold while a synthesizer sound is being output, the

synthesizer sound will be held until you turn it off.

* It is assumed that this parameter will be assigned (p. 66) to the foot

switch.

Parameter/

Range

Explanation

Synth Level

0–100

Adjusts the volume of the synthesizer

sound.

Direct Level

0–100

Adjusts the volume of the direct sound.

Parameter/

Range

Explanation

Type

Small, Medium,

Bright, Power

Selects the modeling type.

Small

This is the sound of a small-bodied acoustic guitar.

Medium

This is a standard, unadorned acoustic guitar sound.

Bright

This is a bright acoustic guitar sound.

Power

This is a powerful acoustic guitar sound.

Bass

-50–+50

Adjusts the low-end balance.

Middle

-50–+50

Adjusts the midrange balance.

Middle Freq

20.0 Hz–10.0 kHz

Specifies the frequency range to be adjusted

with Middle.

Treble

-50–+50 Adjusts the high-end balance.

Presence

-50–+50

Adjusts the balance in the extended upper

range.

Level

0–100

Adjusts the volume.

Parameter/

Range

Explanation

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Roland GT-PRO Owner's Manual Page 50

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