rsc3/doc/examples/graph/e-lamell.rkt

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2022-08-24 13:53:18 +00:00
#lang racket
;; status - working as of 20220820
(require rsc3)
;; e-lamell (rd)
(define e-lamell
(letc ((f 440) (n 12) (d 0.1) (p 0) (a 1.0))
(let* ((h (line ar n (t-choose 1 (mce2 1 32)) d do-nothing))
(s (blip ar f h))
(e-d (env-perc 0.005 d 1 (list -4 -4)))
(e (env-gen ar 1 a 0 1 remove-synth e-d)))
(out 0 (pan2 s p e)))))
(define r-note
(lambda (o p)
(+ (* (choose o) 12)
(choose p))))
(define l-sel
(lambda ()
(r-note (list 2 3)
(list 0))))
(define h-sel
(lambda ()
(r-note (list 2 3 4)
(list 0))))
(define pattern
(lambda (fd)
(send
fd
(bundle
-1
(list (s-new "blip" -1 add-to-tail 1
(list "f" (midi-cps (l-sel))
"n" (rand-int 2 36)
"d" (exp-random 0.01 0.4)
"a" (rand-float 0 0.75)
"p" (rand-float -1 1)))
(s-new "blip" -1 add-to-tail 1
(list "f" (midi-cps (h-sel))
"n" (rand-int 2 36)
"d" (exp-random 0.01 0.4)
"a" (choose (list 0 0.25 0.5 1.0))
"p" (rand-float -1 1))))))
(thread-sleep 0.1)
(pattern fd)))
(with-sc3
(lambda (fd)
(send-synth fd "blip" e-lamell)
(pattern fd)))