UNi Xonar Drivers 1.81 (post periodically updated)

Page updates and announcements:

UNi Xonar drivers are modded Windows drivers for the following cards:

  • Asus Xonar: DG, DGX, DG SI, DS, DSX, D1, D2, DX, D2X, HDAV, HDAV Slim, ST, STX, STX II, Xense.

  • Other C-Media CMI8788 audio chip based cards: Auzentech X-Meridian & X-Meridian 2G; HT Omega Claro Plus, 2, Halo, eClaro; Razer Barracuda AC-1. (view full list)

Linked content:

  1. Introduction
  2. UNi Xonar Features
  3. FAQ & troubleshooting guide (updated 2 Sep 2016)
  4. Having problems installing UNi Xonar drivers? Refer to this topic
  5. Useful tips & suggestions | Known issues & workarounds (updated 22 Mar 2016)
  6. UNi Xonar installer addon documentation
  7. Poll: Rate ASUS Xonar driver support


  1. Release notes
  2. Windows 10 compatibility


Please note that these are modded drivers and there are limitations regarding how much the actual original drivers can be fixed this way.


DONATIONS – Donation list here

Let me first say that these drivers are free of charge for everyone. Those of you who appreciate my hard work and take pleasure in contributing, you can make a small donation (minimum $2 because of fees). Bear in mind you don’t donate for ASUS and C-Media intellectual property and work, you do it for the work that I have done.


CONTRIBUTIONS – Contributors list here

Surely donating is not the only way you can support this project. You can submit your custom made icon, application or any other little enhancements that can make UNi Xonar better. Let’s not forget about spreading the word about UNi Xonar drivers and helping other Xonar owners.


Release notes 1.81a

Driver for all supported cards. Includes 1825 audio drivers for Windows 10. Unlike previous releases, the 1825 audio driver will only work in Windows 10.

Driver changes:

  • Windows 10: Updated audio driver to 1825 (built date: 22 ‎June ‎2016, made by C-Media).
  • Updated C-Media Panel.

Other notes:

  • Replaced C-Media driver uninstaller with UNi Xonar driver cleaner.

Rev. 2 changes:

  • Added support for STXII cards in Asus Audio Center, cards will be detected as STX by Asus Audio Center but feature wise almost everything should be there.

Known issues:

  • 1825 audio drivers have an issue when the audio card is uninstalled, disabled or the drivers are overwritten, resulting in a system crash. In order to avoid the uninstall system crash I’ve come up with a workaround  that’s presented below
  • Asus Audio Center: GX button is no longer showing. It has to do with 1825 audio drivers and there may be a reason why C-Media removed it. I’m not sure if it’s worth it to bring the GX on/off control back.
  • STX II:  Asus Audio Center is missing the gain 16/32 ohms for headset.

Possible issues:

  • STX II: XonarSwitch might not work. Need more feedback on this.
  • Audio playback through headphones and SPDIF at the same time isn’t possible anymore. Original report. Need more confirmations.
  • DSX & probably other cards: DTS Connect with 5.1 speakers does not work. Original report. Need more confirmations.
  • There are reports that the sound quality of these audio drivers is different. RightMarkAudio tests that I’ve made didn’t show any significant differences between v1.81a and v1.80a.
  • The 1825 audio driver may have higher DPC latency than previous drivers. Original report. The tests that I’ve made didn’t show any difference in DPC Latency between v1.81a, v1.80a and v1.80b drivers. Maybe it’s has to do with the settings that are being used.  My test where done with 2.0 analog output.

How to uninstall 1825 v1.81 drivers: In order to avoid a system crash while uninstalling 1825 drivers you will need to play an audio file before proceeding with the uninstall process. Restart system after the uninstall process is done.


Release notes 1.80

UNi Xonar installer changes:

  • Added DPI interface scaling to the installer.
  • Added card autodetection and if the audio card is not detected it will show an error message with possible reasons for that.
  • Improved driver cleaning. It uninstalls all copies of the Xonar/C-media CMI8788 drivers that are present in the Windows driver repository. By installing drivers with “Run driver cleaning” option you won’t be able to use “Roll Back Driver” option for the audio card in Device Manager.
  • Changed the driver installation procedure. Added a fail safe driver installer that should help in those cases where you were required to manually install the audio driver or install it in safe mode. Silent installation is always on and its user option has been removed. If standard driver installation gets stuck (does not finish after 100 sec) it is automatically closed. If standard driver installer fails to install the drivers then an alternate driver installer is launched. If that fails too, you will get notified by the installer that driver installation failed.

Driver changes:

  • Windows XP: Added support for other CMI8788 cards.
  • Xonar DG, DGX, DG SI: Front Panel jack detection should now work if it did with the original drivers.
  • Fixed GX not being turned off by default in “Normal” configuration for the following cards Xonar D2, D2X, DG, DGX and DG SI.

Rev. 2 changes:

  • Improved and fixed some problems with the new driver installation procedure.
  • Added different messages based on why installation failed.
  • Fixed “Front Panel Microphone” not working by default.

Rev. 3 changes:

  • Increased the delay between driver cleaning and driver installation procedures. Might help in some installation failing cases.
  • Fixed the “Warning: Windows running in Test Mode or with Disable Driver Signature Enforcement is required!” message not showing up if needed in combination with the detected audio card.

The 1.80 drivers come in two variants:

  • 1.80a “Standard”

Driver for all supported cards. Replacement for 1.75a driver. Includes 1816 audio drivers for Win XP and 1823 audio drivers for Windows Vista/7/8/8.1/10.

Driver changes:

  • Windows Vista/7/8/8.1/10: Updated audio driver to 1823 (built date: 2 Jun 2015, made by C-Media).
  • Includes updated driver installer, ASUS Audio Center and C-Media Panel.

Other notes:

  • 1823 audio drivers are the first drivers released for Windows 10 by ASUS/C-Media. Whether they perform any better than 1822 or STXII 11.5 drivers remains to be seen.
  • Xonar STX II cards: Drivers work with STXII cards but the changing audio settings may not work with ASUS Audio Center and only with C-Media Panel. Installation on Windows Vista/7/8.1/10 x64 requires Windows running in Test Mode or with “Disable Driver Signature Enforcement” option.

Known issues:

  • STXII: Asus Audio Center does not work. You need to download this patched version and copy paste it over “C:\Program Files\UNi Xonar Audio\Customapp\”.

Possible issues:

  • Microphone stops working if running specific programs. If you run into this issue please report it in a reply to the original report. If you run into the issue you can switch to v1.75a drivers or connect the microphone to the onboard audio card microphone input.
  • WASAPI playback issues might occur with some soundcards
  • Occasionally when waking PC up from sleep the Xonar card does not output any sound.
  • Drivers might stop installing on Windows 10. Try 1.75a, 1.80b or 1.81a instead.
  • Windows 10 Creators Update: Windows would not boot after these drivers where installed. If you run into this problem you have to boot Windows in Safe Mode and remove the audio drivers. Original report. I could not reproduce the issue.
  • 1.80b “STXII”

Driver maily for STX II and  STX II 7.1 cards. It does work for the other UNi Xonar supported cards too. Replacement for 1.75b driver. Includes STX II version 11.5 audio drivers (built date: 18 Feb 2014, made by C-Media).

Driver changes:

  • Includes updated ASIO (, driver installer, ASUS Audio Center and C-Media Panel.
  • Windows XP: Drivers now work for all UNi Xonar supported cards. These were not working with 1.75b drivers.

Other notes:

Rev. 2 changes:

  • Fixed “Asus Audio Center” not working properly and getting replaced by C-Media Panel when installing with “Normal – Asus Audio Center” configuration.

Rev. 3 changes:

  • Fixed some installation issues when drivers were installed on STXII cards (like missing driver uninstall entry in Programs and Features,  incorrect C-media panel name).
  • Fixed a bug where optimal card configuration was not being applied if the drivers were installed without the “Re-enable stereo upmix” option.

Possible issues:

  • Microphone stops working occasionally or when changing audio playback settings (DS->WASAPI). If you run into this issue please report it in a reply to this comment. If you frequently run into the issue you could try v1.75a drivers if possible or connect the microphone to the onboard audio card microphone input.


Release notes 1.75

UNi Xonar Installer changes:

  • Various changes and improvements done to the UNi Xonar installer.
  • Added warning message if installing the drivers would require Test Mode.
  • XonarSwitch is now automatically closed before installing the audio drivers.
  • Improved “Apply addons” function. Included .inf files from the drivers can now be dynamically altered. Documentation can be read here. Applying new 1.75 compatible versions of addons (like DHT4) will display the proper audio driver version now and users could now choose which addons they want to install once these are added to the Uni Xonar installer location.

Rev. 3 changes:

  • Fixed GX is not being turned off by default in Normal configuration for the following cards Xonar D2, D2X, DG, DGX, DG SI.

The 1.75 drivers come in two variants:

  • 1.75a “Standard”

Driver for previously supported cards. Same audio drivers as those in 1.72 (1816 for Win XP, 1822 for Windows Vista/7/8/8.1/10).

Rev.2 changes:

  • Fixed ASUS and C-Media Panels not working in Win XP.
  • Includes updated driver installer and C-Media Panel.

Known issues:

  • The installer is showing “Warning: Test mode to be enabled!” message by mistake if Xonar Xense selected as card.

Possible issues:

  • Missing Dolby Pro-Logic IIx options from C-media Panel. If you have this issue, you can use the “C-media Panel v1.62” installer addon or install v1.72 drivers.
  • 1.75b “STXII”

Driver mainly for STX II and  STX II 7.1 cards. It also works with UNi Xonar previously supported cards.

Rev.2 changes:

  • Fixed issue where installer did not apply the correct audio settings (e.g. to fix surround echo). Anyone who installed the previous 1.75b drivers should install the 1.75b rev.2.

Driver changes:

  • Includes updated ASIO ( , ASUS Audio Center and C-Media Panel.
  • Includes STX II version 11.5  audio drivers (created on 18 Feb 2014).

Other notes:

  • These drivers will work with the previously supported Xonar cards on Win Vista/7/8.1/10 but may require that you enable Windows Test Mode on 64 bit OS.
  • These drivers do not work for the other Xonar cards on Windows XP.

Known issues:

  • ASIO in 64 bit mode does not work. The cause of this issue is the 64 bit asio  dll file from the original STXII drivers.


Release notes 1.72

These drivers bring Windows 8.1 support.

Driver changes:

  • Updated audio driver to version 1822 for Windows Vista/7/8/8.1. Still using 1816 for Windows XP.
  • Includes updated driver installer, ASUS Audio Center and C-Media Panel.

Other notes:

  • New icon for UNi Xonar installer. Thanks to propheticus for his contribution.
  • ASUS Audio Center and C-Media Panel tray icons now have higher resolution icons. Useful for >100% DPI settings.

Known issues:

  • GX is not being turned off by default in Normal configuration for the following cards Xonar D2, D2X, DG, DGX, DG SI.

Release notes 1.71

Driver changes:

  • Updated audio driver to 1821 for Windows Vista/7/8  and 1816 for Windows XP.
  • Includes updated driver installer

UNi Xonar Installer changes:

  • Fixed some issues with Driver cleaning module
  • Improved and fixed some potential issues with UNi Xonar Installer

Known issues :

  • C-media Panel: Enabling and disabling “7.1 Virtual shifter” option disables stereo upmix. Use “Stereo upmix switch” to re-enable it or you can use the C-media Panel v1.62 addon (it will revert to an slightly older C-Media Panel version)
  • In some cases,  WASAPI exclusive playback is interrupted by playback from other audio applications. More details here.  Fix: If you don’t use S/PDIF, disable Digital Output from Control panel->Sound. It’s confirmed that the audio drivers included in 1.70 don’t have this issue.
  • Win Vista/7/8, there are reports that you cannot play sound through S/PDIF and headphones at the same time.
  • GX is not being turned off by default in Normal configuration for the following cards Xonar D2, D2X, DG, DGX, DG SI.


Release notes 1.70

Driver changes:

  • For Windows Vista/7/8 it includes 1818 audio drivers. For Win XP it includes 1814 audio drivers.
  • Includes updated versions of Updated C-media and Asus panels.
  • Fixed HTOmega Claro 2 driver support.
  • Fixed driver signature issues for the other non-Xonar cards that were present in previous release.

Rev. 3 changes:

  • All the improvements and changes done to the UNi Xonar installer from 1.7x versions have been incorporated into this release (like support for addons).
  • Updated C-Media Panel with the one included in 1.72 release.

UNi Xonar Installer changes:

  • Added option to apply addons at driver installation.
  • Improved Low DPC Latency option. Now it allows access to C-media Panel as well. And Asus Audio Center won’t autostart after driver installation like it previously did.
  • Improved Driver Cleaning process. Now it will clean the Panel and HsMgr(GX) processes startup entries too.
  • Reduced the overall installer size (from 13MB to 7MB)
  • Replaced Windows XP driver installer with the same one that’s being used in Windows 7. Please report if there are any malfunctions compared to previous UNi Xonar driver releases.
  • Removed “1777 drivers + Asio 1.0”. This option lives on as an addon.
  • Rev 2: Applied all UNi installer fixes from 1.71

Known issues :

  • C-media Panel: Enabling and disabling “7.1 Virtual shifter” option disables stereo upmix. Use “Stereo upmix switch” to re-enable it or you can use the C-media Panel v1.62 addon (it will revert to an slightly older C-Media Panel version)
  • GX is not being turned off by default in Normal configuration for the following cards Xonar D2, D2X, DG, DGX, DG SI.

Other notes:

  • New icon for UNi Xonar installer. Thanks to propheticus for concept and contribution.
  • ASUS Audio Center and C-Media Panel tray icons now have higher resolution icons. Useful for >100% DPI settings.

Read Previous Release Notes


Notes about Windows 10 compatibility (updated 10 May 2017)

UNi Xonar drivers above v1.64 will work in Windows 10 but since the audio drivers are not yet made specifically for Windows 10 there could be some issues that you could run into depending on audio settings used. Different drivers could work differently so if you encounter any issues try installing the other UNi Xonar versions.

Apart from driver issues there could be issues solely from Windows 10 sound system that would be fixed with future Windows updates. There is also a small chance that some things could break with future Windows updates.

Update 20 Apr 2017, 10 May 2017: Windows 10 Creators Update (build 1703) reported issues so far are:

Your feedback is welcome.  For those of you who run into severe problems after the Creators Update build upgrade you could roll back to the previous Windows 10 build (#1, #2). If that is no longer possible you can download an older Windows 10 build from here and install it without a internet connection present.

To prevent Windows 10 upgrade to Creators Update you need to either disable “Windows Update” service from Control Panel->Administrative Tools->Services or disable the Creators Update update with Wushowhide tool (guide on how to use it).

Update 30 Aug 2016: Thank you for the feedback so far. Based on the feedback received there shouldn’t be any problems installing the drivers on Windows 10 Anniversary Update (build 1607) whether it’s an upgrade or a new installation. One user reported that audio card was recognized only when installing the drivers when booting with Disable Driver Signature Enforcement option. Apart from drivers installation aspect, this new Windows build brings new problems for some users like the following reported ones: crackling or loud popping sound in the speakers, audio card not being detected sometimes or disappearing in Windows and 5.1 analog not working. For those of you who started having problems only after the Anniversary build upgrade you could roll back to a previous Windows 10 build (#1, #2). If that is not possible you can download a older Windows 10 build from here and install it without a internet connection present. To prevent upgrading to build 1607 you need to disable “Windows Update” service from Control Panel->Administrative Tools->Services.

Update 3 Aug 2016: Microsoft made changes to driver signature policy with the Windows 10 Anniversary Update (1607) that could make the Xonar drivers not working/installing anymore. There are some exceptions from this driver signature enforcement. At the moment it’s unclear to me if installing the drivers in Test Mode or with Disable Driver Signature Enforcement still works. I’m interested in hearing you experience under this discussion thread.

Update 28 Nov 2015: The Windows 10 Threshold 2 update does not seem to fix many of the sound issues that where present so far and it may introduce new ones. In my opinion Windows 10 is a very buggy OS, the only things working fine are the spying of its users(#1, #2) and the periodic removal of user preferences and programs(#1, #2, #3, #4).

Update 19 Oct 2015: The audio fixes from Insider Previews >= 10547 will probably be included in the upcoming “Threshold 2” update that will be released around November 2015.

Update 1 Oct 2015: The Windows 10 development team is fixing some audio issues with Windows 10. The fixes where made available for testing starting with Windows 10 Insider Preview build 10547.


100% compatible drivers when?

Because of the very slow development of the audio drivers by C-Media and the long time it takes for C-Media partners (ASUS and HTOmega) to release the new drivers it may take a while before we have a 100% compatible driver for Windows 10.  If we are lucky we will have new audio drivers in 2-3 months after Windows 10 RTM launch. As soon as new audio drivers became available I will release a new UNi Xonar drivers package.

  • Update 25 Jan 2017: 1825 audio drivers for Windows 10 are available. These are the first audio drivers that only work on Windows 10. Hopefully they will perform better than those that supported also Windows 7 and Windows 8.1.
  • Update 01 Oct 2015: 1823 audio drivers are the first drivers released for Windows 10 by ASUS/C-Media. Whether they perform any better than 1822 or STXII 11.5 drivers remains to be seen.

About Chrome stutter issues on sites like YouTube. (27 Aug 2015)

  • Update 27 Aug 2015: The stutter issues on youtube are  fixed with the latest Chrome build released on 20 Aug 2015 (v 44.0.2403.157). Reports indicate that stutter issues are still happening for videos on other websites (eg. daily motion, facebook, instagram).
  • Update 7 Aug 2015: After some testing and some reading it seems that the stuttering issues are not related to the UNi Xonar drivers. I’ve got the same behavior with Realtek’s onboard audio and from what it looked liked. My guess the issue is caused either by Windows 10 or Chrome.

There is a Chromium issue opened here.

Here are some things you could try:

  • Change Chrome audio buffer size.
  • Change/keep sample rate to 44.1 kHz both in the audio panel and Windows Volume->Playback devices->(…) Audio Device Proprieties -> Advanced -> Default Format.
  • Change sample rates back and forward a couple of times.

Driver Downloads (Windows only):

OSDriver package name & download linkAudio driver ver. & build dateASIORequires Test Mode or Disabling Driver Signature Verification on x64 OS for:Notes
Win10UNi Xonar W10 1825 v1.81a r21825 / 22-Jun-20162.0.0.12STXII, HDAV, Xense, Razer AC-1Latest Win10. Might have more problems than previous releases.
UNi Xonar 1816/1823 v1.80a r31823 / 0‎2-‎Jun-20152.0.0.12STXII, HDAV, Xense, Razer AC-1Latest Win8.1, Win7, Win Vista. Might be more stable than v1.81a for Win10.
UNi Xonar STXII 11.5 v1.80b r3STXII 11.5 / 18-Feb-20142.0.0.14All cards except STXIILatest STXII signed driver. Fork from standard audio drivers (eg. 1822). Might have more fixes than standard drivers.
UNi Xonar 1816/1822 v1.75a r31822 / 11-Dec-‎20132.0.0.12STXII, HDAV, Xense, Razer AC-1Overall it might be more stable than v1.80a and v1.81a drivers.
UNi Xonar STXII 11.5 v1.75b r3STXII 11.5 / 18-Feb-20142.0.0.13All cards except STXIIFork from standard audio drivers (eg. 1822). Might have more fixes than standard drivers.
UNi Xonar 1816/1821 v1.711821 / 11-Apr-‎20132.0.0.12HDAV, Xense, Razer AC-1Win 10: might solve the BSOD’s after system wakeup from sleep. More info here.
UNi Xonar 1814/1818 v1.701818 / 17-‎Dec-‎20122.0.0.12HDAV, Xense, Razer AC-1
UNi Xonar 1814/1815 v1.64 r31815 / 03-‎Oct-‎20122.0.0.12STXII, HDAV, Xense, Razer AC-1Might offer better positioning in multichannel setups like 5.1 or 7.1 (info)
WinXPUNi Xonar STXII 11.5 v1.80b r3STXII 11.5 / 18-Feb-20142.0.0.14 –Latest Win XP. Fork from standard audio drivers (eg. 1822). Might have more fixes than standard drivers.
UNi Xonar 1816/1823 v1.80a r31816 / 11-‎Apr-‎20132.0.0.12 –Latest Win XP standard audio drivers.
UNi Xonar 1814/1815 v1.64 r31814 / 03-‎Oct-‎20122.0.0.12 –Might offer better positioning in multichannel setups like 5.1 or 7.1 (info)

Official addons (documentation):

  1. 1777 drivers + Asio 1.0. Info.
  2. C-media Panel v1.62 (fixes stereo upmix turning off for v1.64 rev.1 drivers)

3rd party addons page here.

Standalone applications for changing settings or enhancing audio: 

1. Standalone apps pack / Mirror. Based on a script made by Virus. Before running the files, close any audio source/application. Legacy, preferably use XonarSwitch and configure it with separate profiles.  Does not work correctly when used with STXII (“b”) drivers. Contains:

    1. Front panel switch v3.2
    2. SampleRate switch v1.2
    3. Microphone Array Enabler v1.1 – Might be useful if you have an microphone array
    4. HDAV HDMI enabler v1.0 – This application hasn’t been tested please submit feedback if it works or not. It appears it is not needed anymore.
    5. Acoustic Echo Cancellation enabler v1.0 – Useful for other Cmedia 8788 based cards that lack this setting
    6. Stereo upmix switch v1.0
    7. 7.1 virtual speaker shifter enhanced profile v1.0 – Profile created by Cu. This profile should enhance the effect of positioning in games when using Dolby Headphones and 7.1 virtual speaker shifter. Please provide feedback about this profile. Demo.
    8. Headphones ohm Amp switch v1.0  – Works only with the cards that support this.

2. Additional tweaks

  1. Disable SpeakerCompensation tweak
  2. Increase microphone volume by 3 dB tweak

3. Xonar related applications:

    1. XonarSwitch (beta) – Alternative panel to Asus Audio Center and C-Media Panel. Allows you to control various Xonar’s audio settings, define them as switchable profiles and apply them on-the-fly without having to stop the audio playback. By Giulio.
    2. Front Panel switch (new version) / Mirror. Release notes. By Virus.
    3. Driver re-starter for sound loop problem for Win Vista/7/8/10. By Razord93.
    4. Xonar-EQ – Control Xonar equalizer settings from your Android phone or tablet. By Sascha.
    5. UNi Xonar driver cleaner v1.01 – Standalone driver cleaner based on the one that’s included in UNi Xonar drivers.

4. Auxiliary audio applications:

    1. ASIOConfig by djdecks – ASIO configuration viewer/changer that can be used when you can’t access the Xonar ASIO Configuration directly.
    2. SoundLock – Set the maximum output volume that sounds can be at. Can replace Xonar SVN in some cases (like limiting the volume of loud noises in movies). Works on Windows Vista and newer.
    3. SoundVolumeView – Alternative to Windows Volume Mixer. Allows a finer tune of applications volume levels and offers the ability to save them as different profiles. Works on Windows Vista and newer.
    4. Equalizer APO – A parametric/graphic system-wide equalizer. Works on Windows Vista and newer.
    5. ASIO4ALL – Universal ASIO driver. Can be used instead of the ASIO driver included that’s included in Xonar drivers.
    6. MicMute – Mute microphone with a keyboard shortcut or make it work with a push-to-talk key for any application.



  1. Kurogane    30 Dec 2015 @ 04:20   


    How i can disable GX mode? i’m current using c-media panel and i can’t find it.


  2. Axel    30 Dec 2015 @ 12:42   

    Hey, found the right thread I think.
    I have tried to install the drivers a few different ways, even tried the stock Asus drivers but my problem still prevails.
    My problem is that every time I try to open the Xonar audio center, it says “Can’t find any device” I’ve done several clean installs, and still no luck.
    I have an Asus Xonar Essence STX sound card running on windows 10 64 bit. The Uni drivers used to work great, but during some point, I started to get this error code, Might have been a windows update, might have been something else, but I didn’t update my Uni Xonar drivers, after installing newer versions I still have the problem as well. any fixes for this problem?

    Update: Could NVIDIA and Realtek sound drivers interfere with Uni Xonar not being able to find my sound card? Since It’s listed fine in Device manager, and the passthrough works, but the unixonar itself doesn’t on my sound card.


    • CarvedInside    01 Jan 2016 @ 18:28   

      Your problem seems to be with the Asus (Xonar) Audio Center and not with the UNi Xonar. When someone refers with “UNi Xonar” then it refers to the drivers as a whole not the audio control panel.
      If sound card playback works then you might want to try C-Media Panel or XonarSwitch in order to change sound card settings.

      I don’t know why the Asus Audio Center says “Can’t find any device”. Maybe a windows update changed something in Windows or maybe the your antivirus false flags as dangerous some Asus Audio Center or driver files and deletes them.
      Its highly unlikely that other drivers like those from Nvidia or Realtek have anything with this issue.


      • Axel    02 Jan 2016 @ 12:07   

        I downloaded XonarSwitch and I got it to work fine, Thanks! Hope to find out a reason for the audio panel not working sometime soon.


  3. jazzy    31 Dec 2015 @ 09:01   

    I installed 1.80a driver for windows 10 but only one speaker works even after changing the settings to 5.1 speakers and 6 channels. I tried the original asus software and all speakers work except 1. Youtube doesn’t seem to run on all speakers. It runs on two speakers. Please help me. These speakers were running fine on onboard audio, but there is some problem with asus drivers.


  4. Mikael    31 Dec 2015 @ 13:47   

    I have the same problem.. I have tried ewery drivers! Some say (install unix sound system or something) asus own driver say its not comptitable with this device??. I get sound thrue my sound card(d2x) with the fiber cable..but its not 5.1 its only 2.1 . I cant do any settings in d2x sound center.. Can someone help me please!???


    • CarvedInside    01 Jan 2016 @ 18:29   

      Which problem? Please repost your comment under the existing discussion thread by pressing “Reply” on the comment you are replying to.


  5. awedfg    31 Dec 2015 @ 20:01   

    Random whitenoise SUPERLOUD blows my eardrums off. Windows 10, 64bit, Pro.
    Using the latest Unified.

    Xonar DX with HD558.

    The SUPERLOUD WHITENOISE ATTACKS occur completely random, can be days or weeks in between.


    • CarvedInside    01 Jan 2016 @ 18:36   

      Did you have this with your previous OS?
      A similar issue that was not related to a specific OS is a long time issue with Xonar drivers and cards and there isn’t any fix or solution for it. If you only had this issue now with Windows 10 then you either go back to your previous OS, buy another non-Xonar card or get a headphone amp, have the Windows volume set at 100 and control volume with the amp, this way when the whitenoise issue appears it won’t be super loud.


  6. Tibu128    02 Jan 2016 @ 14:20   

    Question. I have a Xonar D2X. with Windows 10
    After installing the drivers, the sound card takes the EAX 5.0 in the panel having the active GX, but after a reboot function is disabled. but Xonar panel GX is still active. And more to turn it on or off does not enable EAX 5.0.


    • CarvedInside    03 Jan 2016 @ 01:26   

      Do HSMgr.exe and HsMgr64.exe processes run after restart ? Check in task manager.
      In my opinion the broken implementation of EAX emulation by ASUS/C-media isn’t worth the hassle.


    • Test    09 Jan 2016 @ 02:43   

      Sound panel actually just changes HKLM\SYSTEM\CurrentControlSet\Control\Class\{4D36E96C-E325-11CE-BFC1-08002BE10318}\0008\Settings HsSwitch (and EnableXear3D?) value.
      In fact HSMgr.exe is always running iirc (in default drivers it get written in startup programs list).

      If EAX 5 does not work even after ticking the button, check if the relative process is at least running.
      Another key you may want to check is HKCU\Software\C-Media\Hook\Enable.


      • Tibu128    16 Jan 2016 @ 04:49   

        registration and check Enable Xear 3D in a binary which will not register the code to know if enabled.
        on the other hand the HKCU \ Software \ C-Media \ Hook \ path within Hook No record.
        HSMgr.exe and HsMgr64.exe processes are active.


  7. jazzy    02 Jan 2016 @ 20:03   

    I installed 1.80a driver for windows 10 but only one speaker works even after changing the settings to 5.1 speakers and 6 channels. I tried the original asus software and all speakers work except 1. Youtube doesn’t seem to run on all speakers. It runs on two speakers. Please help me. These speakers were running fine on onboard audio, but there is some problem with asus drivers. Please reply back.


    • CarvedInside    03 Jan 2016 @ 01:24   

      Re-posting a unanswered comment is not allowed. I do not answer if I don’t know what to say. To be honest from your description it does not make a lot of sense and there is the lack of essential details, like which card do you have, using analog or SPDIF output, which speaker is working and which it does not.
      From what I can understand you are presenting 3 cases:
      1) with UNi Xonar driver when you change to 5.1 speakers config you only get 1 speaker working (which one?). You say this after you’ve tested where? Have you tried reinstalling the drivers and checking again?
      2) with Asus Xonar drivers (which ones?) when you change to 5.1 speakers config you get 5 out of 6 speakers working (which one?). You say this after you’ve tested where?
      3) you get only 2 speakers out of 6 working with youtube I assume while running the Asus drivers. This might not have anything to do with the issues 1-2. Youtube content is stereo, so here we are talking about upmixing stereo(2.0) content to all 5.1 speakers. On the onboard audio do all the 5.1 speakers work in youtube using the same browser?


  8. CRO    04 Jan 2016 @ 05:22   

    The driver for the STX II is giving a BSOD returning from sleep. Windows 10 x64


  9. wyup    05 Jan 2016 @ 00:14   

    With the last Asus driver update for Win10 x64 (2015/11/04), version for the DX, equal to the Uni Xonar, what exactly changes from the Asus drive? You say Stereo upmix adds a delay to rear speakers from a previous version. How much is it exactly and can we adjust that in the registry or the panel? Other differences I notice are ASIO and OpenAL library versions. Running XonarSwitch, how does it compare in latency to Asus Panel for the same functionality? It says it doesn’t continually poll the driver instead of the Asus Panel. If I kill its process, does it improve the latency in the same way as XonarSwitch?


    • CarvedInside    06 Jan 2016 @ 18:34   

      Changes between UNi Xonar and Asus Xonar drivers are listed in UNi Xonar Features page. Stereo upmix is something else than the speaker delay.
      Side and Rear speakers delay in original drivers is 10ms and Center speaker is 15ms if I remembered correctly. You can read how to change the delay in FAQ: Q&A8.
      Killing Asus Panel won’t improve the DPC latency, only if you would restart Windows without starting the Asus Panel, that is what “Low DPC latency” configuration does. All this is described in the UNi Xonar Features page.


      • wup    16 Jan 2016 @ 14:13   

        Thanks for the reply. So then you can get the same effect disabling/enabling the Asus Panel and GX app from windows startup with official driver. I don’t see what new functionality you get with the xonar driver, since the libraries are the same.


  10. Sam    07 Jan 2016 @ 15:41   

    Hi! Can I actually get Dolby digital live through S/PDIF on my Xonar DGX within Unixonar driver?


  11. Larma    07 Jan 2016 @ 15:59   

    The Xonar Audio Center can’t find any device after a Windows update, but the card is visble in the Device Manager.
    Is there any fix for this or do i have to wait for an update or something?


    • CarvedInside    07 Jan 2016 @ 17:00   

      You can use C-Media Panel or XonarSwitch to change audio setting.
      Currently there is no fix for the Asus Audio Center can’t find device issue.


  12. Rick    07 Jan 2016 @ 19:21   

    I am running Windows 10, but I have noticed a weird problem with these drivers, but also the official ones. My right speaker (z906) lowers its volume after a few hours. The balance and everything else is fine, so I am not sure what is causing this. A reboot fixed it, but the issue persists. The volume is like 1/10th of my left speaker. Any ideas?


    • justtesting    08 Jan 2016 @ 06:13   

      This happened to me occasionally since W7 days with many drivers. It’s rare and random, but next time you can try this app posted by Saber in the official Asus forum specifically for this issue instead of rebooting. It restarts the driver, and volume will go back to normal (also works with the white noise banshee scream of death):


      • Rick    08 Jan 2016 @ 10:51   

        I have the white noise of death as well. It happens almost once a day. I will check that program out, thank you sir.


  13. rem2    09 Jan 2016 @ 21:56   

    For some reason, when I enable the headphone output option I get a buzzing noise. But with all other modes it works fine. Any suggestions?


  14. HapeL    10 Jan 2016 @ 18:02   

    Problem: I have these uni xonar drivers but it gives me “can’t find any device” when I try to open the Xonar Audio Center.
    However, this happened only after I installed this product into one of my PCI-e slots:
    After that I installed some of its drivers and then this problem occurred. If I disable the Intel wireless bluetooth 4.0 adapter, then the Xonar Audio Center can be opened and it works.

    I would like them to work at the same time, so please help me to fix this problem.

    – Windows 7 ultimate 64-bit
    – Asus Xonar DGX
    – Gigabyte Bluetooth 4.0/WiFi Expansion Card Components Other GC-WB867D-I


    • CarvedInside    10 Jan 2016 @ 20:27   

      I don’t have a solution on how to fix Asus Xonar Audio Center but you can use C-Media Panel or XonarSwitch instead to change audio settings.


      • HapeL    10 Jan 2016 @ 21:10   

        Hi! Thank you! I installed the drivers again and choosed C-Media Panel this time. This audio setting program can be operated even with the bluetooth adapter on!
        It works. Thanks again!

        How can I try XonarSwitch (as it wasn’t in the list when installing the driver) and which of these two (C-Media Panel or XonarSwitch) do you prefer and why? 🙂


  15. Victorinox    11 Jan 2016 @ 09:52   

    Hello there!
    I’m pretty sure there something wrong with the latest driver version UNi Xonar 1816/1823 v1.80a r3. Reason is that my microphone somehow gets “muted” occasionally. I have Asus Xonar Essence ST and Windows 7 64 bit edition, motherboard is Asus z77 v-pro. I use coax plug for my headphoneamp/dac and I have separate microphone connected to Essence ST mic jack.
    -I know my mic works because if I do reboot it works fine
    -The problem begins if I open Mozilla and some website with Flash/Video content. Usually opening a game will cause the problem too (League of Legends)
    -If I close all the open programs (Mozilla/LoL etc.) the problem goes away and my mic will pick up sound again in windows sound settings (the green bar)

    BUT because I knew my mic did work before I tried to install the older driver version again UNi Xonar 1816/1822 v1.75a r2. And surprise surprise no matter how many programs I open my mic will pick up sound.

    So, somehow the latest driver set causes mic not to pick up any sounds if i open programs like mozilla / games etc.. Can’t verify if it applies to all sorts of programs but 100% sure it happens with Mozilla / LoL. Only either reboot or closing all programs and wait for awhile helps with the problem. By the way I tried those allow programs take control / exclusive blablabla settings but neither did help. I read someone had similar problem one or two pages back (razer mic wasn’t working, didn’t pick up sound).


    • Mopral    12 Jan 2016 @ 12:35   

      I have the exact same issue on Windows 10 64 bit with my STXII 7.1 and unixonar 1.80b r3
      It happens randomly, sometime right after booting my computer
      Never report it because when you report an issue on Windows 10, you always get the same answer: “it comes from Windows 10, you should go back to a previous Windows”


    • CarvedInside    12 Jan 2016 @ 20:21   

      Hello. Thank you for posting the issue and detailing it. I will check this myself and see if get the same behavior. For now I’ve added it to possible issues with 1.80a driver.
      It might be out of my hands to fix this but at least we know which audio driver is more stable and maybe launch a new UNi Xonar driver package with 1822 audio drivers and the new v1.80 UNi Xonar installer features.


    • Victorinox    13 Jan 2016 @ 11:21   

      Some more details how I found the problem. I was going to play with my buddies and of course we wanted to be able to speak with each other. So, I launched Teamspeak (newest version) and suddenly I realise that my microphone doesn’t pick any voice. Well I thought ok I reboot and everything worked then. After that the problem happened several times when we tried to play. Yes, I tried another program (Dobly Axon), no go. It seemed that always a reboot helped. I wanted to solve the problem and that’s why I tried to find the cause. Well after some testing I found out that opening programs BEFORE opening Teamspeak or Axon caused the mic to go on “mute”. If I started Teamspeak or Axon after a reboot they usually worked fine. It’s strange that microphone doesn’t go on mute if I manage to get it working with Teamspeak / Axon, meaning after that I can open as many programs I want but the microphone doesn’t go on mute anymore. And later on I realised that a reboot isn’t necessary, closing all open programs helped too.

      Both drivers are tested with identical settings. The only thing I change in C-Media panel is that I enable S/PDIF, nothing else is touched.


    • fitasny    13 Jan 2016 @ 20:17   

      Win 10 x64, STX II, uni driver 1.80b r3. The same problem here. When I change output in foobar2000/Audacity from DS/MME to WASAPI, my mic gets muted immediately. Only rebooting helps.


    • vapors    05 Feb 2016 @ 22:32   

      I can confirm this on win10 64bit and win8.1 64.bit. Xonar dx 1.80a “Standard”. I wasnt able to trigger it in repeatable manner “on demand” but it happens often enough to be annoying. Playing games, watching twitch and yt in mozilla. Same as above only reboot helps



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