44 lines
848 B
Racket
44 lines
848 B
Racket
#lang scribble/manual
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@(require (for-label racket))
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@title{(sin-osc rate freq phase)}
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interpolating sine wavetable oscillator. This is the same as osc
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except that the table is a sine table of 8192 entries.
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freq - frequency in Hertz
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phase - phase offset or modulator in radians
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@racketblock[
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(audition (out 0 (mul (sin-osc ar 440 0) (mce2 0.15 0.25))))
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]
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Modulate freq
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@racketblock[
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(let ((f (x-line kr 2000 200 1 remove-synth)))
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(audition (out 0 (mul (sin-osc ar f 0) 0.5))))
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]
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Modulate freq
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@racketblock[
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(let* ((f1 (x-line kr 1 1000 9 remove-synth))
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(f2 (mul-add (sin-osc ar f1 0) 200 800)))
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(audition (out 0 (mul (sin-osc ar f2 0) 0.25))))
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]
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Modulate phase
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@racketblock[
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(let* ((f (x-line kr 20 8000 10 remove-synth))
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(p (mul (sin-osc ar f 0) (* pi 2))))
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(audition (out 0 (mul (sin-osc ar 800 p) 0.25))))
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]
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