Ac. Processor; Phaser; Flanger - Boss Audio Systems GT-100 Parameter Manual

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 .
Parameter Value
Selects the modeling type .
SMALL
TYPE
MEDIUM
BRIGHT
POWER
BASS -50–+50
MIDDLE -50–+50
MIDDLE FREQ 20 .0 Hz–10 .0 kHz
TREBLE -50–+50
PRES -50–+50
LEVEL 0–100

PHASER

By adding varied-phase portions to the direct sound, the phaser effect
gives a whooshing, swirling character to the sound .
Parameter Value
Selects the number of stages that the phaser effect will use .
4 STAGE
8 STAGE
TYPE
12 STAGE
BiPHASE
0–100,
RATE
BPM –
DEPTH 0–100
RESO 0–100
MANUAL 0–100
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 low-end balance .
Adjusts the midrange balance .
Specifies the frequency range to be adjusted
with Middle .
Adjusts the high-end balance .
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 an 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 (feed-
back) . Increasing the value will emphasize
the effect, creating a more unusual sound .
Adjusts the center frequency of the phaser
effect .
Parameter Value
OFF, 0–100,
STEP RATE
BPM –
EFFECT LEVEL 0–100
DIRECT MIX 0–100

FLANGER

The flanging effect gives a twisting, jet-airplane-like character to the
sound .
Parameter Value
0–100,
RATE
BPM –
DEPTH 0–100
RESO 0–100
MANUAL 0–100
SEPARATION 0–100
FLAT,
LOW CUT
55 Hz–800 Hz
EFFECT LEVEL 0–100
DIRECT MIX 0–100
EFFECT
Explanation
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 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 flanging effect .
Determines the amount of resonance (feed-
back) . 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 .
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