Complete Dolby Home Theater technologies Inheriting from DX & D2X, Xonar D1 also provides complete valuable Dolby Home Theater technologies for games & all home entertainments. Supports latest DS3D GX 2.0 for gaming on Vista & XP DS3D GX 2.0 not only revives EAX & Direct Sound effects in games on Windows Vista as GX 1.0, but also incorporates Dolby Home Theater Technologies (Dolby Virtual Speaker, Dolby Headphone, Dolby Digital Live, Dolby Prologic IIX) to provide best gaming audio experience. Innovative Vocal FX makes gaming & online chat more lively & attractive Vocal FX is an innovative voice processing technology to let your voice get into the realistic game landscape (Voice EX) or to emulate the background scenes in online chat (Chat EX). It also means that you can change your voice pitch to disguise who you are (Magic Voice). These features dramatically increase the fun for voice communication on PC. Delivers about 35 times cleaner audio quality (116d B SNR) than most motherboard audio (85d B SNR) The noise on Xonar D1 audio card is only 1/35 (2.8%) of the noise level from most motherboard onboard audio. In addition, Xonar D1 also produces as little as 1/32 (-105d B) of the total harmonics distortion from motherboard audio does (-75d B). S/PDIF header for combining audio with video through a VGA card′s HDMI output The new S/PDIF header allows connectivity with supporting VGA cards, facilitating merged output of audio & video through a VGA card′s HDMI port. This provides a clean, simple solution for Home Theater PC builders.