MacBook keeps playing random audio
Hi all,
My MacBook Pro (retina display), every now and again, plays something that sounds like radio, but I don't know where it is coming from! I have tried turning Wi-Fi off, turning my router off, but it still keeps playing. I definitely have not downloaded anything to do with 'Rio de Janeiro's natural beauty' on my computer, and there are no web browser popup windows open. iTunes is not open, and when I quit my web browser it keeps playing. It is really annoying, and I can't figure out how to stop it! If you need any extra details, let me know. I am running Mac OSX Mountain Lion.
Cheers
MacBook Pro with Retina display, OS X Mountain Lion (10.8.2)