Enabling Multi-Channel for Other Audio Formats in your HTPC
 

If you're fortunate enough to have a PC with multi-channel LPCM output enabling full fidelity audio output is easy (and there's not much point in reading the rest of this) but for those using a SPDIF or stereo only HDMI connection getting multi-channel audio working can be challenging. This guide intends to explain two different options and how to configure each to attain this goal.
http://www.missingremote.com/index.p...885&Ite mid=1