Chorus - Arturia KORG MS-20 V User Manual

7.4.9. Chorus

Chorus is an effect first developed in the mind-1970s by Roland for the Jazz Chorus
amplifier and CE-1 pedal. In a chorus, the dry signal is mixed with one or more slightly
delayed copies of itself (called voices ), whose amount of delay is gently varied by an LFO
to create a sense of thickness.
RATE controls the speed of the LFO, which is the most important parameter
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when adjusting the sound of the chorus. Several famous chorus pedals have had
nothing more than a Rate control! (0.1 to 5.0 Hz)
DEPTH controls the relative spacing of the delayed voices, with longer delays
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leading to thicker, more detuned sounds. (0.00 to 10.0 ms)
DELAY is the length of the basic delay, which is modulated by the LFO and
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spread out by the Depth knob. It changes the character of the sound, and is a
relatively recent addition to chorus pedal designs. (0.600 to 20.0 ms)
FEEDBACK, as the name implies, feeds back some of the delayed signal to be
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delayed again. This creates a noticeable metallic 'ringing' tone that makes the
chorus sound more like a flanger. (0.00 to 0.900)
LFO Wave Shape lets you choose between a sine wave and triangle wave for the
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LFO, which produces a distinctly different set of motion to the sound.
Arturia - User Manual KORG MS-20 V - The Effects Panel 100