For the record...I have an Auzentech X-Fi Forte sound card. I have had periodic problems with this sound card for over a year. It plays music fine, but movies are another story. I hear everything during a movie or video except for the voices. When they are present they are muffled. I beleive the issue is a driver problem. I can't get any help on this matter from anyone. Auzentech won't even reply to my service tickets. I've been to their forum with no responses and no help also. If you check out their forum, all of the posts are pretty old and nothing new. I think everyone has quit using it. I posted a few days ago, and no other action has been noticed on the site.That may help you in deciding about Auzentech products. There are rated high, but I haven't foudn any good reviews.
I'm currently looking for another sound card for 7.1 surround performance. I have a good logitech THx certified 7.1 surround system.