27 lines
924 B
Scheme
27 lines
924 B
Scheme
;; (decode-b2 numChannels w x y orientation)
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;; 2D Ambisonic B-format decoder.
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;; Decode a two dimensional ambisonic B-format signal to a set of
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;; speakers in a regular polygon. The outputs will be in clockwise
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;; order. The position of the first speaker is either center or left
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;; of center.
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;; The number of output speakers is typically 4 to 8.
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;; The parameters w, x and y are the B-format signals.
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;; The parameter orientation should be zero if the front is a vertex
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;; of the polygon. The first speaker will be directly in
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;; front. Should be 0.5 if the front bisects a side of the
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;; polygon. Then the first speaker will be the one left of
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;; center. Default is 0.5.
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(let* ((p (pink-noise ar))
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(encoded (pan-b2 p (mouse-x kr -1 1 0 0.1) 0.1))
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(decoded (decode-b2 4
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(mce-channel encoded 0)
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(mce-channel encoded 1)
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(mce-channel encoded 2)
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0)))
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(audition (out 0 decoded)))
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