17 lines
395 B
Racket
17 lines
395 B
Racket
#lang scribble/manual
|
|
@(require (for-label racket))
|
|
|
|
@title{(in-range in lo hi)}
|
|
|
|
Tests if a signal is within a given range.
|
|
|
|
If in is >= lo and <= hi output 1.0, otherwise output 0.0. output
|
|
is initially zero.
|
|
|
|
in - signal to be tested
|
|
lo - low threshold
|
|
hi - high threshold
|
|
|
|
(let ((a (in-range (mul (sin-osc kr 1 0) 0.2) -0.15 0.15)))
|
|
(audition (out 0 (mul a (mul (brown-noise ar) 0.1)))))
|
|
|