17 lines
328 B
Text
17 lines
328 B
Text
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#lang scribble/manual
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@(require (for-label racket))
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@title{(is-negative a)}
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Predicate to determine if a value is negative.
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(define (is-negative a)
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(lt a 0.0))
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(let* ((a (line ar -1 1 1 remove-synth))
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(b (is-negative a))
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(f (mul-add (mce2 a b) 600 900)))
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(audition
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(out 0 (mul (sin-osc ar f 0) 0.1))))
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