Alesis GuitarFX User Manual page 26

10
EFFECT Knob Settings
EQ (Equalizer)
This setting gives you a 4-band equalizer that you can use to shape the sound of
your audio signal by cutting and boosting certain frequencies.
NR (Noise Reduction)
This is a combination of two effects—hum elimination and noise reduction.
Hum elimination works by cutting out the frequency that contains the hum
(60Hz). Noise reduction works by gating the signal (muting the signal until its
level rises above a certain point).
Hum Elimination (Left digit of display)
Noise Reduction (Right digit of display)
CAB (Cabinet Simulator)
This module emulates cabinet setups of various sizes. This effect is especially
useful if you are plugging your guitar directly into the board instead of using an
amplifier.
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Varying levels of cut and boost for low, middle and high audio
frequencies broken down as follows:
01 – 10: Lower values = attenuated highs and emphasized lows
11 – 20: Lower values = lower emphasized frequency
21 – 24: Lower values result in emphasized midrange
25: Flat EQ curve
26 – 30: Higher values = emphasized highs
31 – 40: Higher values = higher emphasized frequency
41 – 50: Higher values = emphasized presence and lows
Off
Turns off the EQ.
Increasing levels of hum elimination (60Hz harmonic notch filters)
Turns off hum elimination
Increasing levels of gate threshold.
Turns off noise reduction