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UNi Xonar Features

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UNi Xonar driver features:

  • Unified driver for the following cards:
    • ASUS Xonar: DG, DGX, DG SI, DS, DSX, D1, D2, DX, D2X, HDAV, HDAV Slim, ST, STX, STX II, Xense.
    • Auzentech: HDA X-Purity 7.1, X-Meridian 1G, X-Meridian 2G.
    • HTOmega: Claro, Claro Plus, Claro II, Claro Halo, eClaro.
    • Razer Barracuda AC-1.
    • TempoTec HIFIER Serenade & other C-Media CMI8788.

The following cards won’t work and will not be supported with UNi Xonar Drivers: ASUS Xonar U1, U3, U5, U7, EssenceOne, Essence STU, ROG Phoebus, ROG Thunderbolt and D-Kara; ASUS Strix cards.

  • Fixed 5.1 stereo upmix issue, stereo sounds won’t be upmixed to 4.0, 5.1 or 7.1 anymore (stereo is played in 2.0, surround is played in 4.0/5.1/7.1). This is a general problem on Win XP. While on Win Vista/7/8  if number of channels and number of speakers are set correctly, then it is only a problem when using S/PDIF output – since v1.0
  • Fixed the Rear and Center channel delays which where enabled by default. These are now disabled. This fixes the strange annoying reverb that people hear with 5.1 headphones/speakers. This also offers a more “responsive” 5.1/7.1 sound experience regardless if you are using speakers or headphones. – since v1.20
  • Updated OpenAL library from 2.0.4 to 2.1.0 – useful in some cases if you use GX or play games with OpenAL support – since v1.0
  • Includes the most up to date audio drivers and components available, which occasionally fix long time issues or bugs. You would have to wait literally years and sometimes forever for getting an up to date driver directly from ASUS, Cmedia, Auzentech, HTOmega or Razer.
  • Loading the right settings out of the box when installed (44.1kHz  sample rate, GX off).
  • Driver cleaner built-in the UNi Xonar installer.
  • Streamlined all-in-one driver installer for Windows XP, Vista, 7, 8, 8.1, 10 for both x86 and x64 arhivectures.
  • Windows 8.1 support for all the cards supported by UNi Xonar drivers. Note that on Win8.1 x64 the Xonar HDAV and Razer Barracuda AC1 cards will work only in test mode.
  • Early Windows 10 support for all the cards supported by UNi Xonar drivers. The support for these cards on Windows 10 is limited, there are some bugs and glitches that may never be solved.
  • Support for addons & custom files in the installer – making it easier to apply custom files or additional driver mods when installing new drivers – since 1.70
  • Installer with card auto-detection and debugger for those cases where the audio cards do not work. – since v1.80
  • Additional fixes and improvements through three different configuration presets of the drivers. See the table below:

Features comparison table

Normal

Low DPC latency **

C-Media Audio Panel**

Description

Uses Asus Xonar Audio Center (aka Asus Panel). It’s like original Asus Xonar drivers but with UNi Xonar fixes and settings.Asus and C-media Panel are disabled from auto starting. If needed, either one of them can be launched from UNi Xonar Drivers category in Start menu.The GX processes are disabled from auto starting. GX is not functional. Ensures lowest DPC Latency and lowest interferences with the system and sound playback.Uses C-media Panel as default. Some options may be missing, but you can also launch Asus Audio Center from UNI Xonar Drivers category in Start menu, or use Standalone Apps and make the necessary changes.The GX processes are disabled from auto starting. GX is not functional. If GX is needed, when installing the drivers choose C-media Panel with GX enabled.Has low DPC latency and low Interferences with the system and sound playback.

Advantages

– “direct” access to almost all options available for Xonar cards

– Drastically reduced DPC latency(~75µs)*  

-makes windows startup a little faster and reduces the RAM memory usage by 30-35 MB by not auto starting Asus or C-media Panels and EAX Emulator processes (aka GX);

– possibly fixes for other audio issues or glitches.

– possibly fixing some performance issues in games and other applications.

– Drastically reduced DPC latency (~75µs)*  

– reduces memory usage by 10-20 MB RAM

Compared to Asus Panel it offers alternate & better sounding Dolby enhancements

– it offers easier access to some functions.

– fixes some audio glitches using Dolby

– possibly fixes for other audio issues or glitches.

– possibly fixing some performance issues in games and other applications.

Disadvantages

– high to very high DPC latency, depending on the enabled options(~200µs) 

– loading possibly unneeded components (Asus Panel and especially GX processes)

– Because GX is fully disabled enabling GX through options won’t work.

– Enabling MagicVoice and other Voice Effects won’t work because they depend on GX processes.

– Missing settings on Win XP: Sample Rate, GX button, HP ohm switch.

Missing settings on Win Vista, 7, 8, 10: Front Panel Output switch, HP ohm switch.

The missing settings can be enabled through Standalone Apps or by launching Xonar Audio Center from Start Menu.

– On C-Media Panel without GX: Enabling MagicVoice and other Voice Effects won’t work because they depend on GX processes.

 

  • Special notes:
    1. *Enabling the following Audio Center functions Dolby sound enchantments, SVN, AEC, equalizer, environment presets and karaoke will cause your DPC latency to raise considerably regardless of what version of driver you use.
    2. **On Low DPC Latency or C-media Panel configurations, launching Xonar Audio Center will cause an increase in DPC latency (just like the normal driver) which will be resolved after a system restart. If DPC latency is a concern to you, it’s preferable that you use Standalone Apps for changing the settings that are missing from C-Media Panel.
    3. What does DPC latency do? A low DPC latency ensures audio/video smoothness, while a high DPC latency can cause audio/video drop-outs or sound stutters. DPC latency checker and additional information here. I wrote an article about DPC latency where I also did some tests here.