This code didn't work even though "Alarm03.wav" and Code files are in the same folder. The program does not give an error, but I cannot hear any sound. I also couldn't run it with other audio files. "aaa.mp3", aaa.ogg" etc. I will try again on my home computer
local audio = require "audio"
local sound = audio.Sound("Alarm03.wav")
-- play sound for 5sec and exit