44 lines
1.4 KiB
Text
44 lines
1.4 KiB
Text
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#lang scribble/manual
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@(require (for-label racket))
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@title{(demand trig reset ugens)}
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demand results from demand rate ugens.
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When there is a trigger at the trig input, a value is demanded from
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each ugen in the list and output. The unit generators in the list
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should be 'demand' rate.
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When there is a trigger at the reset input, the demand rate ugens
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in the list are reset.
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trig - trigger. trigger can be any signal. A trigger happens when
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the signal changes from non-positive to positive.
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reset - trigger. Resets the list of ugens when triggered.
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(define (mirror1 l)
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(append l (cdr (reverse (cdr l)))))
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(let* ((t (impulse kr 24 0))
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(s (drand dinf (mce2 (dseq 1 (make-mce (mirror1 (enum-from-to 1 5))))
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(drand 8 (make-mce (enum-from-to 4 11))))))
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(f (demand t 0 (mul s 100)))
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(x (mouse-x kr -1 1 0 0.1))
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(o (sin-osc ar (mce2 f (add f 0.7)) 0)))
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(audition (out 0 (mul (scale-neg (cubed (cubed o)) x) 0.1))))
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(let* ((t (impulse kr 10 0))
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(r (dust kr 1))
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(s (dgeom dinf (midi-cps 72) (midi-ratio 1)))
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(f (demand t r s))
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(o (sin-osc ar (mce2 f (add f 0.7)) 0)))
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(audition (out 0 (mul (u:max (cubed o) 0) 0.1))))
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(let* ((t (impulse kr 10 0))
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(s (midi-cps (diwhite dinf 60 72)))
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(f (demand t 0 s))
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(o (sin-osc ar (mce2 f (add f 0.7)) 0)))
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(audition (out 0 (mul (cubed (cubed o)) 0.1))))
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