rsc3/doc/examples/graph/_scm/oscillator-cluster.scm

40 lines
948 B
Scheme

;; oscillator cluster (rd)
(import (rnrs) (rsc3) (rhs))
(define ln
(lambda (a b d)
(line kr a b d remove-synth)))
(define xln
(lambda (a b d)
(x-line kr a b d remove-synth)))
(define rln
(lambda (r a b d)
(line kr (add a (rand 0 r)) b d remove-synth)))
(define rxln
(lambda (r a b d)
(x-line kr (add a (rand 0 r)) b d remove-synth)))
(define prt
(lambda (d a)
(lambda (cf)
(let* ((r1 (rand cf (add cf 2)))
(r2 (rln 1 5 0.01 d))
(r3 (rln 10 20 0 d))
(r4 (rand 0.1 0.2))
(f (add (mce2 cf r1) (mul (sin-osc kr r2 0) r3)))
(o (f-sin-osc ar f 0))
(e (mul (decay2 (impulse ar 0 0) r4 d) a)))
(mul o e)))))
(define oscillator-cluster
(let* ((np 12)
(fp (replicate-m np (rand 220 660)))
(d (rand 4 7))
(a (rand 0.01 0.05)))
(foldl add 0 (map (prt d a) fp))))
(audition (out 0 oscillator-cluster))