Introducing Lua! - Cocos2d-x by Example Beginner's Guide - page 371

cc.SimpleAudioEngine:getInstance():preloadEffect(effectPath)
effectPath =
cc.FileUtils:getInstance():fullPathForFilename("diamond.wav")
cc.SimpleAudioEngine:getInstance():preloadEffect(effectPath)
effectPath =
cc.FileUtils:getInstance():fullPathForFilename("diamond2.wav")
cc.SimpleAudioEngine:getInstance():preloadEffect(effectPath)
effectPath =
cc.FileUtils:getInstance():fullPathForFilename("wrong.wav")
cc.SimpleAudioEngine:getInstance():preloadEffect(effectPath)
4. And finally, let's set the ball rolling by creating and running our first scene:
--create scene
local scene = require("MenuScene")
local menuScene = scene.create()
if cc.Director:getInstance():getRunningScene() then
cc.Director:getInstance():replaceScene(menuScene)
else
cc.Director:getInstance():runWithScene(menuScene)
end