If you have an dvi-hdmi adapter, you could use the dvi port on your gpu on your pc and plug it into a spare hdmi lead.
I would take that with a pinch of salt mind you, the original DVI specification was to not support audio. I think some newer graphics cards support audio through the DVI output nowadays and some older cards are capable via the use of some sort of dongle (ATI cards I read about somewhere, not sure about NVIDIA).
Again
here is a slightly better description. This is also on the NVIDIA site!