rsc3/doc/examples/process/_scm/fm-kltr.scm

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2022-08-24 13:53:18 +00:00
; fm-kltr (rd)
(define fm-instr
(letc ((trig 0)
(amp 0.1)
(dur 0.1)
(freq 400)
(index 40)
(pan 0)
(freq2 600))
(let* ((p (EnvPerc 0.01 dur 1 (replicate 2 -4)))
(e (EnvGen 1 amp 0 1 removeSynth p))
(x (XLine freq (Mul freq (s:rand 0.975 1.025)) dur 0))
(o (SinOsc x 0))
(l (Line index (Mul freq (s:rand 0.5 1.5)) dur 0))
(x2 (XLine freq2 (Mul freq2 (s:rand 0.975 1.025)) dur 0))
(m (MulAdd o l x2)))
(Pan2
(SinOsc m 0)
(Line pan (Mul pan (s:rand 0.75 1.25)) dur 0)
e))))
(define fm
(lambda (fd f ff a d i)
(sendMessage
fd
(s_new "fm" -1 1 1
(list "freq" (s:midi-cps f)
"freq2" (+ (s:midi-cps ff) (s:rand -1 1))
"amp" a
"dur" d
"index" i)))))
(define r-note
(lambda (o p)
(+ (* (s:l-choose o) 12) (s:l-choose p))))
(define low-f
(lambda (fd)
(fm
fd
(r-note (list 3 5) (list 0 3 7 8))
(s:rand 36 72)
(s:rand 0.0 0.2)
(s:rand 1.2 7.2)
(s:rand 240 1480))))
(define high-f
(lambda (fd)
(fm
fd
(r-note (list 7 10) (list 0 2 5 10))
(s:rand 84 120)
(s:rand 0.1 0.6)
(s:rand 0.2 1.2)
(s:rand 240 1480))))
(define cmp-f
(lambda (a b)
(compare (car a) (car b))))
(define low-t
(integrate
(cons
0
(replicateM
36
(lambda () (s:l-choose (list 0.25 0.5 0.75 1.0 1.5)))))))
(define high-t
(integrate
(cons
0
(replicateM
36
(lambda () (s:l-choose (list 0.05 0.15 0.25 0.5 0.75)))))))
(define fm-kltr
(lambda (fd)
(sendSynth fd "fm" (Out 0 fm-instr))
(map
(lambda (x)
((cadr x) fd)
(thread-sleep (car x)))
(sortBy
cmp-f
(append (map (lambda (x) (list x low-f)) low-t)
(map (lambda (x) (list x high-f)) high-t))))))
(withSc3 fm-kltr)