I have a builtin Realtek ACL885 HD sound card on my MSI 7260 Nforc4 motherboard. I also have an external decoder, which can decode digital signals, but I cannot figure out how to send a true digital signal from this card.
Also, if my solution requires a new sound card, are there any recommendations for what I want to do that are inexpensive. Most cards that I've looked at (i.e. BlueGears b-Enspirer, or Creative X-Fi), but it seems they might be overkill since I would like the processing to be done on the external decoder.