Asus XONAR U3 User Manual - Page 33

DS3D GX2.5 and DSP Modes, EAX and DG3D HW games, please enable DG3D GX on the Xonar U3 audio - gx mode

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8.8 DS3D GX2.5 and DSP Modes Xonar U3 is introducing an innovative technology -DirectSound 3D Game Extensions v2.5 (DG3D GX2.5)- to restore DirectSound 3D Hardware acceleration mode and its subsidiary EAX effects on Windows 7/Vista for 3D games. Unlike some proprietary API like OpenAL, DG3D GX doesn't require games to support OpenAL API. All existing games compatible with Microsoft DirectX and DirectSound 2D/3D will be supported with DG3D GX technology. Before you start EAX and DG3D HW games, please enable DG3D GX on the Xonar U3 audio center, and disable the function after the games. In addition, Xonar U3 also offers a Hi-Fi mode for hi-fidelity playback without any effect processing to keep the original audio fidelity. Every time you turn on Hi-Fi mode, Xonar U3 will clear all sound effects. It's also recommended to use Hi-Fi mode for audio quality tests (using RMAA software or another machine-based measurement). Use the DSP mode button as the quick setup if you don't wish to know the details of the effect setup. No sound effects will be applied to high-definition 96KHz/192KHz content. ASUS Xonar U3 27

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27
ASUS Xonar U3
8.8
DS3D GX2.5 and DSP Modes
Xonar U3 is introducing an innovative technology –DirectSound 3D Game
Extensions v2.5 (DG3D GX2.5)- to restore DirectSound 3D Hardware acceleration
mode and its subsidiary EAX effects on Windows 7/Vista for 3D games.
Unlike some proprietary API like OpenAL, DG3D GX doesn’t require games to
support OpenAL API. All existing games compatible with Microsoft DirectX and
DirectSound 2D/3D will be supported with DG3D GX technology. Before you start
EAX and DG3D HW games, please enable DG3D GX on the Xonar U3 audio
center, and disable the function after the games.
In addition, Xonar U3 also offers a Hi-Fi mode for hi-fidelity playback without any
effect processing to keep the original audio fidelity. Every time you turn on Hi-Fi
mode, Xonar U3 will clear all sound effects. It’s also recommended to use Hi-Fi
mode for audio quality tests (using RMAA software or another machine-based
measurement). Use the DSP mode button as the quick setup if you don’t wish to
know the details of the effect setup.
No sound effects will be applied to high-definition 96KHz/192KHz content.