
CHAPTER 20. LIVE AUDIO EFFECT REFERENCE 266
parameter to the Y-axis, use the parameter row on the left side.
The Feedback parameter sets how much of the output signal returns to the delay line input.
Very high values can lead to runaway feedback and produce a loud oscillation watch your
ears and speakers if you decide to check out extreme feedback settings!
You can transpose the grain pitch with the Pitch parameter, which acts much like a crude
pitch shifter.
The Spray control adds random delay time changes. Low values smear the signal across
time, which adds noisiness to the sound. High Spray values completely break down the
structure of the source signal, introducing varying degrees of rhythmic chaos. This is the
recommended setting for anarchists.
The Random Pitch control adds random variations to each grain's pitch. Low values create
a sort of mutant chorusing effect, while high values can make the original source pitch
completely unintelligible. This parameter can interact with the main Pitch control, thus
allowing degrees of stability and instability in a sound's pitch structure.
The size and duration of each grain is a function of the Frequency parameter. The sound of
Pitch and Spray depends very much on this parameter.
Grain Delay now also has a dry/wet control; it can be routed to the vertical axis of the X-Y
controller.
20.14 Phaser
The Phaser Effect.
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