Ac. Processor; Phaser; Flanger - Boss GT-001 Parameter Manual

EFFECT

AC. 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.
Knob Parameter Value
Page 1
Selects the modeling type.
SMALL
[1] TYPE
MEDIUM
BRIGHT
POWER
[2] BASS -50–+50
[3] MIDDLE
-50–+50
M .FREQ
20.0 Hz–10.0
[4]
kHz
(MIDDLE FREQ)
Page 2
[1] TREBLE -50–+50
PRES
[2] -50–+50
(PRESENCE)
[4] LEVEL 0–100

PHASER

By adding varied-phase portions to the direct sound, the phaser
effect gives a whooshing, swirling character to the sound.
Knob Parameter Value
Page 1
Selects the number of stages that the phaser effect
will use.
4 STAGE
[1] TYPE 8 STAGE
12 STAGE
BiPHASE
0–100,
[2] RATE
BPM –
[3] DEPTH 0–100
RESO
[4] 0–100
(RESONANCE)
14
Explanation
This is the sound of a small-bodied
acoustic guitar.
This is a standard, unadorned acoustic
guitar sound.
This is a bright acoustic guitar sound.
This is a powerful acoustic guitar sound.
Adjusts the tone for the low frequency
range.
Adjusts the midrange balance.
Specifies the frequency range to be
adjusted with Middle.
Adjusts the tone for the high frequency
range.
Adjusts the balance in the extended
upper range.
Adjusts the volume.
Explanation
This is a four-phase effect. A light
phaser effect is obtained.
This is a eight-phase effect. It is a
popular phaser effect.
This is a twelve-phase effect. A deep
phase effect is obtained.
This is the phaser with two phase shift
circuits connected in series.
This sets the rate of the phaser effect.
* When set to BPM, the value of each
parameter will be set according
to the value of the "MASTER BPM"
specified for each patch. This makes
it easier to achieve effect sound
settings that match the tempo of
the song.
* If, due to the tempo, the time is
longer than the range of allowable
settings, it is then synchronized to a
period either 1/2 or 1/4 of that time.
Determines the depth of the phaser
effect.
Determines the amount of resonance
(feedback). Increasing the value will
emphasize the effect, creating a more
unusual sound.
Knob Parameter Value
Page 2
[1] MANUAL 0–100
OFF, 0–100,
STEP .RT
[2]
(STEP RATE)
BPM –
E .LEVEL
[3] 0–100
(EFFECT LEVEL)
DIR .MIX
[4] 0–100
(DIRECT MIX)

FLANGER

The flanging effect gives a twisting, jet-airplane-like character to
the sound.
Knob Parameter Value
Page 1
0–100,
[1] RATE
BPM –
[2] DEPTH
0–100
RESO
[3] 0–100
(RESONANCE)
[4] MANUAL 0–100
Page 2
SEPARAT
[1] 0–100
(SEPARATION)
LO .CUT
FLAT,
[2]
55 Hz–800 Hz
(LOW CUT)
E .LEVEL
[3] 0–100
(EFFECT LEVEL)
DIR .MIX
[4] 0–100
(DIRECT MIX)
Explanation
Adjusts the center frequency of the
phaser effect.
This sets the cycle of the step function
that changes the rate and depth.
When it is set to a higher value, the
change will be finer. Set this to "Off"
when not using the Step function.
* When set to BPM, the value of each
parameter will be set according
to the value of the "MASTER BPM"
specified for each patch. This makes
it easier to achieve effect sound
settings that match the tempo of
the song.
* If, due to the tempo, the time is
longer than the range of allowable
settings, it is then synchronized to a
period either 1/2 or 1/4 of that time.
Adjusts the volume of the phaser.
Adjusts the volume of the direct
sound.
Explanation
This sets the rate of the flanging
effect.
* When set to BPM, the value of
each parameter will be set accord-
ing to the value of the "MASTER
BPM" specified for each patch. This
makes it easier to achieve effect
sound settings that match the
tempo of the song.
* If, due to the tempo, the time
is longer than the range of
allowable settings, it is then
synchronized to a period either
1/2 or 1/4 of that time.
Determines the depth of the
flanging effect.
Determines the amount of
resonance (feedback). Increasing
the value will emphasize the effect,
creating a more unusual sound.
Adjusts the center frequency at
which to apply the effect.
Adjusts the diffusion. The diffusion
increases as the value increases.
This sets the frequency at which the
low cut filter begins to take effect.
When "Flat" is selected, the low cut
filter will have no effect.
Adjusts the volume of the flanger.
Adjusts the volume of the direct
sound.