29 lines
580 B
Racket
29 lines
580 B
Racket
#lang scribble/manual
|
|
@(require (for-label racket))
|
|
|
|
@title{(ring1 a b)}
|
|
|
|
|
|
Ring modulation plus first source. Return the value of ((a*b) +
|
|
a). This is more efficient than using separate unit generators for
|
|
the multiply and add.
|
|
|
|
See also mul, Ring1, Ring2, Ring3, Ring4.
|
|
|
|
|
|
@racketblock[
|
|
(audition
|
|
(out 0 (mul (ring1 (f-sin-osc ar 800 0)
|
|
(f-sin-osc ar (x-line kr 200 500 5 do-nothing) 0))
|
|
0.125)))
|
|
]
|
|
|
|
|
|
@racketblock[
|
|
(let ((a (f-sin-osc ar 800 0))
|
|
(b (f-sin-osc ar (x-line kr 200 500 5 do-nothing) 0)))
|
|
(audition
|
|
(out 0 (mul (add (mul a b) a) 0.125))))
|
|
]
|
|
|
|
|