#lang scribble/manual
@(require (for-label racket))

@title{(dbrown  length lo hi step)}

(dibrown length lo hi step)

demand rate brownian movement generators.

lo     - minimum value
hi     - maximum value
step   - maximum step for each new value
length - number of values to create

dbrown returns numbers in the continuous range between lo and hi,
dibrown returns integer values.  The arguments can be a number or
any other ugen.


@racketblock[
(let ((f (lambda (u)
           (let* ((a (u dinf 0 15 1))
                  (t (impulse kr (mouse-x kr 1 40 1 0.1) 0))
                  (f (mul-add (demand t 0 a) 30 340)))
             (mul (sin-osc ar f 0) 0.1)))))
  (audition (out 0 (mce2 (f dbrown) (f dibrown)))))
]