(use-modules (ice-9 binary-ports)) (include "music.scm") ; Bitrate is the number time to sample the music function each second (define bitrate 8000) ; Get the music as a list sampled at the bitrate (define (play t end) ( cons (* 1/4 (tri (* t (music t)))) (if (< t end) (play (+ t (/ 1 bitrate)) end) '() ) )) ; 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 4))