Migi06
New Head-Fier
- Joined
- Apr 16, 2012
- Posts
- 31
- Likes
- 10
Quote:
My experimental settings... Xonar DG Optical/SPDIF --> X-Fi HD USB & Dolby headphone works great
I´m using unified drivers and with this settings I don't have annoying DG headphone amp hissing/white/static/whatever noise
The myth is busted:
-Myth: Sound card DSP effects for gaming do not carry through S/PDIF.
-Fact: They do go through S/PDIF. I've tested it myself with RightMark 3DSound's positional audio test (uses DirectSound3D, so be sure to point ALchemy or other wrappers to the installation directory). This makes the combination of a sound card as a DSP and an external DAC with S/PDIF input a plausible upgrade option, as the sound card's lesser analog circuitry is still bypassed.
However, arbitrary driver decisions may prevent some DSP features from working over S/PDIF anyway, such as Dolby Headphone on Xonar cards. This does not apply to all cards; X-Fi cards allow CMSS-3D Headphone output over S/PDIF.
Some anecdotal experiences with SPDIF: I actually have success outputting Dolby Headphone over SPDIF to an external DAC using the Asus Xonar D1, with the unified drivers, but was not able to with any of the X-Fi based cards I tried (Titanium and X-Fi Forte).
My experimental settings... Xonar DG Optical/SPDIF --> X-Fi HD USB & Dolby headphone works great

The myth is busted:
-Myth: Sound card DSP effects for gaming do not carry through S/PDIF.
-Fact: They do go through S/PDIF. I've tested it myself with RightMark 3DSound's positional audio test (uses DirectSound3D, so be sure to point ALchemy or other wrappers to the installation directory). This makes the combination of a sound card as a DSP and an external DAC with S/PDIF input a plausible upgrade option, as the sound card's lesser analog circuitry is still bypassed.
However, arbitrary driver decisions may prevent some DSP features from working over S/PDIF anyway, such as Dolby Headphone on Xonar cards. This does not apply to all cards; X-Fi cards allow CMSS-3D Headphone output over S/PDIF.