ALESIS NanoVerb Stereo Amplifier - Manual (Page 31)

EFFECT Knob Settings
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Flanger
Shifts the pitch of the signal up and down, creating a swirling
effect. Higher values result in more feedback.
Pedal Flanger
A flanger whose delay is controlled by the control pedal.
Tremolo
Varies the volume of the signal, creating a rising and falling effect.
Higher values result in greater depth of variation.
Pedal Tremolo
A tremolo effect whose depth is controlled by the control pedal.
12-String
Emulates the crisp, full sound of a 12-string guitar by creating the
impression that your guitar has six additional strings that are tuned
an octave higher than the original six.
Pedal 12-String
A 12-string effect whose intensity is controlled by the control
pedal.
Slow Attack
Reduces the attack rate of the signal, slowing the rate at which the
volume of the sound rises when you attack a string. Higher values
result in higher sensitivity.
Random Sample and Hold Step Filter
Filters the signal with a cutoff frequency that changes to a new
random value at fixed time intervals, producing an arpeggiator-like
sound.
Pedal Step Filter
A step filter whose depth is controlled by the control pedal.
Auto Wah
The classic auto wah sound that we all know and love. U1 – U4 are
the standard, upward-sweeping variations with varying
attack/release rates. U5 – U9 are downward-sweeping variations
with varying attack/release rates.