Asus P5B Deluxe/WiFi-AP - Manual (Page 137)

ASUS P5B Deluxe -
Audio preferences
Click the icon to go to the Preferences page. This page allows you to change
various audio settings.
General options
Click the General tab to choose your playback and recording devices, enable/
disable the AudioESP™ feature, and enable/disable digital output.
DTS
This feature is consists of two elements: DTS interactive and DTS NEO:PC. DTS
interactive re-encodes your stereo or multi-channel sound into a DTS audio signal
and send it out from your PC to any DTS enabled system.
While DTS NEO:PC turns your stereo audio such as MP3, WMA, CD, and other
sound format into a convincing multi-channel audio experience.