29 lines
925 B
Scheme
29 lines
925 B
Scheme
;; (buf-allpass-c buf in delaytime decaytime)
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;; Buffer based all pass delay line with cubic interpolation
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;; All pass delay line with cubic interpolation which uses a buffer
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;; for its internal memory. See also Bufallpass-n which uses no
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;; interpolation, and Bufallpass-l which uses linear
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;; interpolation. Cubic interpolation is more computationally
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;; expensive than linear, but more accurate.
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;; See also allpass-c.
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;; buf - buffer number.
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;; in - the input signal.
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;; delaytime - delay time in seconds.
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;; decaytime - time for the echoes to decay by 60 decibels. If this
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;; time is negative then the feedback coefficient will be
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;; negative, thus emphasizing only odd harmonics at an
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;; octave lower.
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(with-sc3
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(lambda (fd)
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(async fd (b-alloc 0 44100 1))))
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(let ((x (mul3 (decay (dust ar 1) 0.2) (white-noise ar) 0.5)))
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(audition (out 0 (buf-allpass-n 0 x 0.25 6))))
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