When I install the driver you linked, I do not have this interface.ok, here's a screenshot of my Asus Audio Manager, Default Format tab... with the DTS:Interactive option - I select this, then 5.1 works perfect through my speakers (I don't need to physically click the configure button and tell windows it's 5.1 tho, I have tested with games, and 5.1 demo files etc..)
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I have the Sonic interface, not this one. The Sonic interface only allows me to set the bitrate, not the channels and there's no option for Dolby.
You seem to have a magic driver package and I want it