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DigiTech RP21D User Manual

Page 34

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to create an incredible ensemble of sound. Aside from the more obvious speed and depth parameters (which adjust respectively how fast
and far the sound goes out of tune), the RP21D allows you to use different waveforms. The waveform defines how it will move in and out of
tune. The triangle waveform is very popular for slow, shallow chorus settings, while the sine waveform works nicely for faster, deeper
settings.

When do I use Chorus?

The Chorus effect is so vast in applications, an easier question would probably be “When can’t I use a

Chorus. When playing the Blues, turn the Speed and Depth parameters up to produce an almost Leslie-Type effect When trying to obtain
“Big” rock guitar tone, use the Chorus to thicken-up and add depth to your sound. And, any time your using a clean tone Program, the
guitar is always much more lush sounding when Chorus is added.

Chorus Parameters:

Note: not all parameters listed below are available in all Chorus modules.

FX: Lvl

Controls the signal input level fed to the module. Ranges from Off to 100%.

Dry: Lvl

Controls the level of the dry (uneffected) signal. Ranges from Off to 100%.

Balance

Controls the left/right positioning of the dry signal in the stereo soundfield. Ranges from -99 (all left) to 99 (all
right).

Speed

Controls the Low Frequency Oscillator (LFO) speed of the chorus. Ranges from 0.06 to 16.0 Hz.

Depth

Adjusts the intensity of the chorus effect. High settings produce dramatic modulation, while lower settings can be
used to produce a more subtle, ambient swirling. Ranges from 0 to 30 milliseconds.

Depth 1 - 2

DEPTH1 adjusts the intensity of chorus voices 1-4. DEPTH2 adjusts the intensity of chorus voices 5-8. Ranges from 0
to 30 milliseconds.

Wander Speed

Controls the secondary LFO speed of chorus voices 5-8. This is a secondary oscillator for voices 5-8 that causes
deviations from the oscillation path set by DEPTH2. This control can produce radical new textures when used
creatively. Try setting it slightly faster or slower than SPEED. Ranges from 0.06 to 2.0 Hz.

Wander Depth

Adjusts the intensity of the oscillation deviations produced by WANDER SPEED. WANDER DEPTH produces dramatic
psycho-acoustic swirling effects when set higher than DEPTH2. Ranges from 0 to 10 milliseconds.

WvFrm

Selects which waveform the LFO follows. Options: sine, triangle, SP1 (special 1), and SP2 (special 2). See figure 3-4

Dly A - B

Controls the delay time of chorus voices A and B. Higher delay time settings produce a more dramatic sweeping
sound. Ranges from 0 to 60 milliseconds.

Dly C - D

Controls the delay time of chorus voices C and D. Higher delay time settings produce a more dramatic sweeping
sound. Ranges from 0 to 60 milliseconds

Dly E - H

Controls the delay time of chorus voices E through H. Higher delay time settings produce a more dramatic sweeping
sound. Ranges from 0 to 60 milliseconds

Out A - B

Adjusts the overall level of chorus voice A or B. Ranges from Off to 100%.

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RP21D User’s Guide Section Two - Editing Functions