rsc3/doc/examples/graph/_scm/vla-adttn.scm

;; vla-adttn (rd)

(import (rnrs) (rhs) (sosc) (rsc3))

(define vla
  '((-49.43290 1.99165)
    (0.00000 1.09187)
    (-2.53835 -2.73340)
    (-8.55317 0.73919)
    (-7.58952 -0.75267)
    (-8.48353 1.70372)
    (-13.92700 1.64759)
    (-39.93130 -2.25142)
    (-19.87800 -3.12024)
    (-34.19660 -1.58899)
    (-18.82040 -1.39847)
    (-21.22520 2.04672)
    (-21.33070 -0.14754)
    (-31.08620 2.05345)
    (-42.51880 -0.55890)
    (-41.19730 0.23896)
    (-46.80570 1.71249)
    (-47.17510 2.37942)
    (-37.97520 -0.83005)
    (-38.32750 -2.49358)
    (-44.79280 -1.16301)
    (-49.11850 1.33082)
    (-45.26480 -0.45146)
    (-46.27050 -0.15578)
    (-63.14360 -3.13979)
    (-44.27590 -2.59826)
    (-40.19680 -2.16540)
    (-56.83330 0.48774)
    (-56.62160 -0.84155)
    (-55.76370 1.59076)
    (-59.36050 -0.99090)
    (-55.42520 -0.58264)
    (-64.99020 0.00110)
    (-63.45910 1.55117)
    (-64.77610 2.68228)
    (-68.27080 -1.82120)
    (-71.90240 1.80545)
    (-79.13910 2.99369)
    (-64.94640 -3.12388)
    (-59.41810 1.84679)
    (-86.33570 1.81713)
    (-88.53500 1.01834)
    (-64.17470 -1.52081)
    (-61.24430 1.45757)
    (-69.88980 -0.47708)
    (-65.39420 0.82882)
    (-73.84740 0.41623)
    (-72.26330 0.31856)
    (-73.88560 2.64035)
    (-70.86610 -0.43802)
    (-67.86130 -0.43389)
    (-80.76020 -2.50016)
    (-66.44520 2.26219)
    (-83.49810 2.57825)
    (-66.01220 -2.08254)
    (-65.30220 -2.83644)
    (-74.05780 0.21665)
    (-72.69060 -2.78729)
    (-75.49700 2.96210)
    (-69.45200 0.72293)
    (-75.36160 0.14687)
    (-70.21110 1.42155)
    (-79.34420 0.76044)
    (-81.56200 2.16997)
    (-84.20670 3.11095)
    (-74.40450 -2.98094)
    (-76.67820 1.96564)
    (-79.95980 2.68183)
    (-77.31420 -1.92260)
    (-74.60450 -1.89189)
    (-67.98670 1.99457)
    (-80.17960 -1.95013)
    (-79.44400 -2.70955)
    (-81.89010 3.12971)
    (-80.18220 1.76888)
    (-82.94420 2.77531)))

(define prep
  (lambda (p)
    (let ((ampl (list-ref p 0))
          (phase (list-ref p 1)))
      (list (s:db-amp ampl) phase))))

(define vla-partial
  (lambda (freq rise fall detune)
    (lambda (n)
      (let* ((m (* n 2))
             (ampl (buf-rd 1 kr 0 m 0 0))
             (phase (buf-rd 1 kr 0 (+ m 1) 0 0)))
        (mul (f-sin-osc ar
                        (mul3 freq
                              (+ n 1)
                              (mul-add (lf-noise1 kr 1) detune 1.0))
                        phase)
             (linen (impulse kr 0 0)
                    (mul rise (rand 0.75 1.25))
                    ampl
                    (mul fall (rand 0.75 1.25))
                    do-nothing))))))

(define vla-plyr
  (lambda (n)
    (letc ((buf 0)
           (ampl 0.1)
           (freq 129.897)
           (rise 0.1)
           (fall 0.5)
           (loc 0.0)
           (detune 0.001))
      (let ((s (foldl1 add (map (vla-partial freq rise fall detune)
                                (enum-from-to 0 (- n 1))))))
        (mrg2 (detect-silence s 0.001 0.2 remove-synth)
              (out 0 (pan2 s loc ampl)))))))

(define vla-get-cps
  (lambda (b)
    (midi-cps (+ (choose b)
                 (s:degree-to-key (choose (list 0 1 2 3 4 5 6 7 8))
                                  (list 0 2 3 5 7 8 10)
                                  12)))))

(define pattern
  (lambda (fd)
    (send fd (s-new "plyr36" -1 add-to-tail 1
                    (list "buf" 0
                          "loc" (random -1 1)
                          "ampl" (random 0.05 0.1)
                          "freq" (vla-get-cps (list 24 36))
                          "detune" (random 0.001 0.005)
                          "rise" (random 1 2)
                          "fall" (random 4 7))))
    (thread-sleep 5)
    (pattern fd)))

(with-sc3
 (lambda (fd)
   (async fd (b-alloc 0 (* (length vla) 2) 1))
   (send fd (b-setn1 0 0 (flatten (map prep vla))))
   (send-synth fd "plyr36" (vla-plyr 36))
   (pattern fd)))