aboutsummaryrefslogtreecommitdiff
path: root/lambeat.scm
blob: ac3bb76bbf43c42747268f3e08329f6c84f56147 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
(use-modules (ice-9 binary-ports))
(include "music.scm")

(define bitrate 8000)

; Get the music as a list sampled at the bitrate
(define (play t) (
	cons (music t) (if (< t 30)
		(play (+ t (/ 1 bitrate)))
		'()
	)
))

; Output the list in the s16 raw audio format
(for-each (lambda (a) (
	let ((b (modulo (inexact->exact (round (* (+ a 2) 32768))) 65536)))
		cons
			(put-u8 (current-output-port) (modulo b 256))
			(put-u8 (current-output-port) (quotient b 256))
)) (play 0))