pa to ti enkodira svaki zvuk sa PC-a u DDL(dolby digital live) ili DTS. Znaci sve imas spojeno preko optike ili koaksijalnog kabla i sve ide u 5.1/7.1 na reciever.
EDIT: koliko vidim, samo su ove kartice podrzane(ne znam da li je tvoja):
Sound Blaster X-Fi Elite Pro
Sound Blaster X-Fi Platinum
Sound Blaster X-Fi
Sound Blaster X-Fi Fatal1ty
Sound Blaster X-Fi Platinum Fatal1ty Champion Series
Sound Blaster X-Fi XtremeMusic
Sound Blaster X-Fi XtremeGamer Fatal1ty® Pro
Sound Blaster X-Fi XtremeGamer