My Audya has great MP3 and Midi sound when loaded into the board. When I use a USB midi interface between my netbook and midi in of the Audya,SMF files are equally as good because I am employing the same sound engine.

MP3 files from the netbook to the direct in of the Audya sound nowhere near as good as those loaded into the keyboard because, I imagine,the DAC takes place in the netbook and is of lower quality.

The question is how to improve the quality of audio from the netbook. I have S/PDIF RCA jacks on the Audya as well as direct in's but don't know much about it.
Bernie