IS there anything for X-FI as far as software that reduces background noise for a mic? I have sennheiser 555 and a clip on mic and the mic works awesome with my onboard sound but not w/ x-fi. The mic works but you can hear my case fans over my voice constantly. The onboard realtek has a software feature to turn this off. Is there any such thing for x-fi??? Surely a $100 sound card has something like this??