Lexicon PCM NATIVE CHORUS, Owner'S Manual

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Chorus (Flange)
The Chorus effect is used to thicken a track or create a lush, shimmering effect and is often
used on vocals and guitars. Flanging creates a “sweeping” type sound that is similar to that of
a phaser effect and is often used on guitars and bass, but can be used on other instruments as
well.
This algorithm is quite similar to the other delay algorithms in the PCM Effects Bundle. The
difference is in the modulation aspect. The same LFO modulators are available as in the
Random Delay algorithm, but the voices react differently. In the Random Delay algorithm, the
voices move abruptly. However, in the Chorus (Flange) algorithm, they move very gradually, with
noticeable, and desirable, pitch effects as they move. For the chorus effect, the voices move
somewhat independently, yielding a thickening effect without too much filtering. For the flange
effect, voices are generally paired at close intervals. As they move, a noticeable comb-filtering
takes place due to cancellation. The voices are often fed back, nearly to the point of instability.
The Chorus (Flange) algorithm has 8 total delay voices (4 delay voices per input channel).
Each voice has independently adjustable delay time of up to 9.5 seconds (plus an additional 1
second of “Wander” delay), selectable LFO and independent output and feedback control.
Each of the delay voice’s output and feedback paths include an independently selectable filter,
adjustable filter frequency, filter bandwidth, filter shelf, polarity, level and pan control.