37 lines
848 B
Racket
37 lines
848 B
Racket
#lang scribble/manual
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@(require (for-label racket))
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@title{(PV_Magfreeze buffer freeze)}
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freeze magnitudes. freezes magnitudes at current levels when
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freeze > 0.
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buffer - fft buffer.
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freeze - if > 0 then magnitudes are frozen at current levels.
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@racketblock[
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(with-sc3
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(lambda (fd)
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(async fd (b-alloc 10 2048 1))
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(async fd (b-alloc-read 12 "/home/rohan/audio/metal.wav" 0 0))))
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]
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@racketblock[
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(let ((dup (lambda (a) (mce2 a a)))
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(s (sin-osc ar (mul-add (lf-noise1 kr 5.2) 250 400) 0))
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(f (sin-osc kr 0.2 0)))
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(audition (out 0 (dup (mul 0.25 (ifft* (pv-mag-freeze (fft* 10 s) f)))))))
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]
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@racketblock[
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(let ((dup (lambda (a) (mce2 a a)))
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(s (play-buf 1 12 (buf-rate-scale kr 12) 1 0 1))
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(f (gt (mouse-y kr 0 1 0 0.1) 0.5)))
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(audition (out 0 (dup (mul 0.25 (ifft* (pv-mag-freeze (fft* 10 s) f)))))))
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]
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