42 lines
929 B
Racket
42 lines
929 B
Racket
#lang scribble/manual
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@(require (for-label racket))
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@title{(latch in trig)}
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Sample and hold. Holds input signal value when triggered.
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in - input signal.
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trig - trigger. The trigger can be any signal. A trigger happens when the
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signal changes from non-positive to positive.
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@racketblock[
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(audition
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(out 0 (mul (blip ar (mul-add (latch (white-noise ar) (impulse ar 9 0))
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400 500) 4)
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0.2)))
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]
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The above is just meant as example. lf-noise0 is a faster way to
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generate random steps :
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@racketblock[
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(audition
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(out 0 (mul (blip ar (mul-add (lf-noise0 kr 9) 400 500) 4) 0.2)))
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]
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http://create.ucsb.edu/pipermail/sc-users/2006-December/029991.html
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@racketblock[
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(let* ((n0 (mul-add (lf-noise2 kr 8) 200 300))
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(n1 (mul-add (lf-noise2 kr 3) 10 20))
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(s (blip ar n0 n1))
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(x (mouse-x kr 1000 (mul sample-rate 0.1) 1 0.1)))
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(audition
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(out 0 (latch s (impulse ar x 0)))))
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]
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