Millennium Enterprises Integrated Modeling Amplifier Chorus, P I T C H, Editing Modules, 1 sec

Johnson Millennium

Section - 4 Editing Modules

The Dual Chorus creates two different pitch “voices”, while the Octal Chorus creates eight voices for extremely full, rich sounds .

P I T C H

10 -5 cents 0 5 cents 10

		1 sec	2 sec	3 sec
T	I	M	E	Modulated Sound
				Original Sound

Figure 4-1 Modulation Example

The only difference between choruses and flangers is that flangers use less delay and have a feedback parameter that sends a portion of the effected signal back to the input of the module. When the effected signal reaches the input, it is sent through the module again, building thickness and depth. If you increase the feedback enough, the source begins to lose its own original pitch to the dramatic pitch modulation of the feedback loop.

LFO Waveforms: There are four LFO waveforms available for Choruses, Flangers, Phasers, Tremolos, Auto Panners. They include SINe, TRIangle, SPecial-1, SPecial-2, and SPecial-3. See figure 4-2 for examples of what these waveforms look like.

(DEPTH)AMPLITUDE FREQUENCY (SPEED)

SINE LFO

Chorus

AMPLITUDE (DEPTH) FREQUENCY (SPEED) AMPLITUDE (DEPTH) FREQUENCY (SPEED) AMPLITUDE (DEPTH)

TRIANGLE LFO SP1 LFO

Figure 4-2 LFO Types

FREQUENCY (SPEED)

SP2 LFO

(DEPTH)AMPLITUDE FREQUENCY (SPEED)

SP3 LFO

(Modifiers only)

Chorus is probably the most basic modulation effect. It is really just a very small delay whose time is always changing. As the time is varied, the delayed signal's pitch changes (just like a tape recordings' pitch raises when you play it faster). By moving the time back and forth, you hear a sound that goes in and out of tune. When combined with the original sound, it almost sounds like more than one instrument is playing. The Millennium uses several choruses at once to make huge rich sounds. For example, the octal chorus uses eight chorus voices at once 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 Millennium 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.

User Guide

41