#lang scribble/manual
@(require (for-label racket))

@title{(buf-delay-c buf in delaytime)}


Buffer based simple delay line with cubic interpolation.

Simple delay line with cubic interpolation which uses a buffer for
its internal memory. See also buf-delay-n which uses no
interpolation, and buf-delay-l which uses linear interpolation. Cubic
interpolation is more computationally expensive than linear, but
more accurate.

See also delay-c.

buf       - buffer number.
in        - the input signal.
delaytime - delay time in seconds.


@racketblock[
(with-sc3
 (lambda (fd)
   (async fd (b-alloc 0 44100 1))))
]


@racketblock[
(let ((z (mul3 (decay (dust ar 1) 0.5) 0.3 (white-noise ar))))
  (audition (out 0 (add (buf-delay-c 0 z 0.2) z))))
]