sound through hdmi macbook pro 2011
Hey, I have a MacBook Pro early 2011 model. I have now bought a surround system 5.1. I want the sound to go through the thunderbolt output into an adapter that converts it to hdmi and then to the reciever. I have that adapter it's just that it wont come any sound through that adapter... What should I do/buy?
MacBook Pro, OS X Mountain Lion (10.8.4)