Boss VF-1 - Acoustic; ACOUSTIC Gtsim (Acoustic Guitar Simulator); AFB (Anti-Feedbacker); BASS GTR SIM (Bass Guitar Simulator)

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The function of each parameter
ACOUSTIC
With this feature, you can change the sound from a pickup
on an electric-acoustic guitar into a richer sound, similar to
that obtained by a microphone placed near a guitar.
EFFECT
This parameter turns the acoustic effect on/off.
BODY
This adjusts the resonance of the sound caused by the body.
That is, it adjusts the softness and fatness of the sound which
is the typical characteristics of acoustic guitars.
MIC DISTANCE
This simulates the distance between the microphone
capturing the sound of an acoustic guitar and the guitar
itself.
ACOUSTIC GtSIM
(acoustic guitar simulator)
This simulates the sound of an acoustic guitar. It allows you
to use an electric guitar to produce sounds similar to those of
an acoustic guitar.
This effect can be used in the “GUITAR MULTI 2” algorithm
when the SFX “SELECT” parameter is set to “AC.”
* For details on SFX settings, refer to “About SFX” (p.48).
TOP
This adjusts the interference to the strings made by the top
plate. That is, it adjusts the attack sense or harmonic
contents.
BODY
This adjusts the resonance of the sound caused by the body.
That is, it adjusts the softness and fatness of the sound which
is the typical characteristics of acoustic guitars.
LEVEL
This adjusts the volume of the acoustic guitar simulator.
AFB (anti-feedbacker)
This prevents the acoustic feedback that can be produced by
the body resonances of a guitar.
EFFECT
This parameter turns the anti-feedback effect on/off.
DEPTH
Adjust the suppression strength of the fixed frequency point
for feedback cancellation.
FREQUENCY
Adjust the fixed frequency point at which feedback will be
cancelled.
BASS GTR SIM
(bass guitar simulator)
Simulates the sound of a bass guitar. Obtain the sound of a
bass guitar while playing an electric guitar.
This effect can be used in the “GUITAR MULTI 2” algorithm
when the SFX “SELECT” parameter is set to “BS.”
* For details on SFX settings, refer to “About SFX” (p.48).
CHARACTER
Bass tone characteristic is set. When “LOOSE” is selected, as
if the string gauge was getting thicker.
FX LEVEL (effect level)
Adjusts the volume of the bass guitar simulator sound.
DIR LEVEL (direct level)
This adjusts the volume of the direct sound when the effect is
tured on.
BCF (bass cut filter)
This is a filter that cuts unwanted low range noise, such as
pops. It simulates the bass cut switch that is found on some
mics.
EFFECT
This parameter turns the bass cut filter effect on/off.
FREQUENCY
This parameter sets the cutoff frequency for the bass cut
filter.