In theory if you connect optically the only PC noise that you would get in your audio would be radiated or RF noise but I doubt that your PC would put enough out at a high enough level to actually be noticeable.
If you use coax you run the risk of creating a ground loop which could lead to audible hum.
Either way, barring gross errors, you should always get 100% accurate digital data out of the sound card.
The M-audio is a nice card. You should be fine with it.
If you use coax you run the risk of creating a ground loop which could lead to audible hum.
Either way, barring gross errors, you should always get 100% accurate digital data out of the sound card.
The M-audio is a nice card. You should be fine with it.