48 lines
1.1 KiB
Racket
48 lines
1.1 KiB
Racket
#lang scribble/manual
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@(require (for-label racket))
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@title{(pv-bin-wipe bufferA bufferB wipe)}
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Combine low and high bins from two inputs
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Copies low bins from one input and the high bins of the other.
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bufferA - fft buffer A.
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bufferB - fft buffer B.
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wipe - can range between -1 and +1.
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if wipe == 0 then the output is the same as inA.
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if wipe > 0 then it begins replacing with bins from inB from the bottom up.
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if wipe < 0 then it begins replacing with bins from inB from the top down.
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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 11 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* ((a (mul (white-noise ar) 0.2))
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(b (mul (sin-osc ar 100 0) 0.2))
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(f (fft* 10 a))
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(g (fft* 11 b))
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(h (pv-bin-wipe f g (mouse-x kr -1 1 0 0.1))))
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(audition (out 0 (mul (ifft* h) 0.5))))
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]
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@racketblock[
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(let* ((a (mul (white-noise ar) 0.2))
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(b (play-buf 1 12 (buf-rate-scale kr 12) 0 0 1))
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(f (fft* 10 a))
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(g (fft* 11 b))
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(h (pv-bin-wipe f g (mouse-x kr -1 1 0 0.1))))
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(audition (out 0 (mul (ifft* h) 0.5))))
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]
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