#lang racket
;; status - working as of 20220820

(require rsc3)

;; hh-808 (ryan at wabdo.com)

(define hh-808
  (let* ((time 250)
         (freqs (list 205.35 304.41 369.64 522.71 540.54 812.21))
         (pulse-env
          (let ((e (env (list 1.0 0.6) (list time) (list -0.5) 0 0)))
            (env-gen ar 1 1 0 (/ 1 1000) do-nothing e)))
         (s (let ((f (make-mce (map (lambda (x) (mul x 4.09)) freqs))))
              (mix (lf-pulse ar f 0 0.5))))
         (f (list
             (lambda (a)
               (add3 (mul (eq a 6.0) 0.6)
                     (mul (eq a 2.0) 0.2)
                     (mul (eq a 1.0) 0.9)))
             (lambda (a)
               (add (mul a pulse-env)
                    (mul (mix (lf-pulse ar (make-mce freqs) 0 0.55)) 0.9)))
             (lambda (a)
               (rlpf a 7000 0.6))
             (lambda (a)
               (rhpf a 6800 1.5))
             (lambda (a)
               (rhpf a 6800 1.5))
             (lambda (a)
               (rhpf a 1200 1.5))
             (lambda (a)
               (add a (free-verb a 0.33 0.5 0.5)))
             (lambda (a)
               (let* ((c (list 0 -0.5 0 -50))
                      (e (env (list 0 1 0.4 0 0)
                              (list 2 time 50 500)
                              c 0 0)))
                 (mul a (env-gen ar 1 1 0 (/ 1 1000) remove-synth e))))
             (lambda (a)
               (mce2 a (delay-n a 0.005 0.005)))))
         (>>> (flip compose)))
    (mul ((foldl1 >>> f) s) 2)))

(audition (out 0 hh-808))