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Chapter 3 ES2 87
ES2 integrated eects processor
ES2 is equipped with an integrated eects processor. Any changes to the parameters of these
eects are saved with each sound setting.
Intensity and Speed
parameters are shared
by the Chorus, Flanger,
and Phaser effects.
Click to choose Chorus,
Flanger, or Phaser effect.
Adjust to set the level of
Distortion.
Use the Tone parameter
to alter the tonal color of
the Distortion effect.
Click to choose a hard
or soft type of Distortion
effect.
You can activate only two eects at the same time.
•
Distortion
•
Choose the Chorus, the Flanger, or the Phaser eect. These eects share the same control
knobs—Intensity and Speed.
A chorus eect is based on a delay line, the output of which is mixed with the original,
dry signal. The short delay time is modulated periodically, resulting in pitch deviations.
The modulated deviations, in conjunction with the original signal’s pitch, produce the
chorus eect.
A anger works in a similar fashion to a chorus, but with even shorter delay times. The
output signal is fed back into the input of the delay line. This feedback results in the creation
of harmonic resonances that wander cyclically through the spectrum, giving the signal a
“metallic” sound.
A phaser mixes a delayed and an original signal. The delayed element is derived from an
allpass lter, which applies a frequency-dependent delay to the signal. This is expressed as
a phase angle. The eect is based on a comb lter, which is basically an array of inharmonic
notches—rather than resonances, as with the anger—that also wanders through the
frequency spectrum.