2022-08-24 13:53:18 +00:00
|
|
|
#lang scribble/manual
|
|
|
|
@(require (for-label racket))
|
|
|
|
|
|
|
|
@title{(last-value in diff)}
|
|
|
|
|
2022-08-28 10:27:01 +00:00
|
|
|
|
2022-08-24 13:53:18 +00:00
|
|
|
output the last value before the input changed more than a
|
|
|
|
threshhold.
|
|
|
|
|
2022-08-28 10:27:01 +00:00
|
|
|
|
|
|
|
@racketblock[
|
2022-08-24 13:53:18 +00:00
|
|
|
(let ((f (last-value (mouse-x kr 100 400 0 0.1) 40)))
|
|
|
|
(audition (out 0 (mul (sin-osc ar f 0) 0.1))))
|
2022-08-28 10:27:01 +00:00
|
|
|
]
|
2022-08-24 13:53:18 +00:00
|
|
|
|
2022-08-28 10:27:01 +00:00
|
|
|
|
|
|
|
@racketblock[
|
2022-08-24 13:53:18 +00:00
|
|
|
(let* ((x (mouse-x kr 0.1 4 0 0.1))
|
|
|
|
(f (mul-add (u:abs (sub x (last-value x 0.5))) 400 200)))
|
|
|
|
(audition (out 0 (mul (sin-osc ar f 0) 0.2))))
|
2022-08-28 10:27:01 +00:00
|
|
|
]
|
|
|
|
|
2022-08-24 13:53:18 +00:00
|
|
|
|