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. Chris    21 May 2017 @ 04:30   

    It would be cool if you could provide checksums of the .exe somewhere externally from your website. I see that you are using WordPress, which is easily hacked (due to certain plugins). Or maybe use GPG to sign the files.


  2. D    22 May 2017 @ 22:20   

    where is the download button


  3. noname    25 May 2017 @ 18:09   


    While I never had this issue myself so far, in this review: it is said that the 6 khz issue caused by the audio stack has been resolved by C-Media in the 1825 driver.

    Is this something confirmed or just a speculation?


  4. selvakumar    25 May 2017 @ 20:31   

    CARVEDINSIDE i need your help man Front Microphone is creating distortion after Creator update for my ASUS XONAR ESSENCE STX HELP NEEDED when enabling microphone boost


    • CarvedInside    25 May 2017 @ 22:57   

      Please do not post the same problem multiple times.
      You could try to uninstall the Xonar drivers and install them again. If that does not work, you could connect the microphone to the onboard audio card. If it still has the same problems then probably there is something wrong with the microphone.


  5. Tyrael    27 May 2017 @ 04:25   

    Hello guys,

    I own the Asus Essence STX II 7.1 and I can not use headphones. The headphone jackets (front and back) panel are not recognized by Windows 10 Creators Update. Like in the FAQ told I deactivated AMD HDMI Audio, else I could not get 5.1 through SPDIF. When I tick Headphones in Xonair Audio or C-Panel nothing happens. I was using 1.81a, tried the ASUS driver, but there are the same issues with headphones.


    • CarvedInside    27 May 2017 @ 19:52   

      Hello. Did it work before upgrading to Creators Update? When you go to Windows Volume -> Playback devices, is Speakers (Asus Xonar STXII) set as default playback device?


      • Tyrael    28 May 2017 @ 00:22   

        Good Evening CarvedInside. Unfortunately I can not tell you if it worked before Creators Update because I have an new Ryzen build and sold my old one. I directly installed Windows 10 Creators Update. I use again the STX II because my Mainbard ASRock x370 Professional Gaming can not send 5.1 through SPDIF (300€….). My old build with FX 8320 could send 5.1 through SPDIF with the Realtek chip so I did not use my STXII.
        Under Windows Volume Asus Speakers are default.
        Also something changed here also: I first installed 1.81a and I needed to set SPDIF as default to get my sound to my receiver. After installing Asus drivers, than deinstalling it and again installing Uni driver I have to set the speakers as default to get sound.


      • Tyrael    28 May 2017 @ 17:11   

        Hello CarvedInside,

        i tested it today with my old installtion (Windows 10 1603). There is also Headphones not working. I tried it with 1.81a and 1.80a r3. Internal Sound card and AMD HDMI sound were deactivated.



        • CarvedInside    29 May 2017 @ 04:11   

          You should check that the headphones are working with the onboard card. You should try with UNi Xonar v1.80b driver.
          Since you had the STXII card, did the headphone connection ever worked? I’m thinking that maybe the cards analog outputs are defective. Besides checking the headphones and with v1.80b drivers, you could check the card in a Win7 system. That should tell you for sure if your card has a problem.


          • Tyrael    29 May 2017 @ 21:27   

            Hello CarvedInside,

            yes the headphones are working with onboard card (DT-990). I also got suspiciuous that the sound card is defective. I will try it on Windows 7, I have to install it first again. I will report the results then.



          • Tyrael    06 Jun 2017 @ 17:28   

            Hello CarvedInside,

            I tested it with Windows 7. Thank your for your hint, my card is unfortunately defective. I contaced ASUS RMA but my warranty run out last month so I have no chance to exchange. Do you also have any hint how I can repair it?



            • CarvedInside    07 Jun 2017 @ 03:02   

              You should check that all the op-amps are properly seated and have been rightfully placed (see STXII manual page 11). If you have the 7.1 addon card, you should check those outputs see if they work.
              If the advices above do not work, the only other option would be to go with the card or send it to an electronics repair center for resoldering the components or reflowing the whole board.


              • Tyrael    17 Jun 2017 @ 23:11   

                Hello CardvedInside,

                thank you so much for your hints. Today I got time to change the op-amps and everything works now again. Seems that the op-amps were defective.



  6. aaa839    27 May 2017 @ 08:54   

    Hi guys,recently I found a new problem
    I’m using the Asus Xonar DGX with UniXonar 1825
    When using Skype for Windows 10,or other modern apps,the microphone will not be working
    no matter you change the setting or not.
    Does it the driver issues or Windows Issues??
    I have try reinstall,but no luck


    • CarvedInside    27 May 2017 @ 19:46   

      Hi. Which Windows build version do you have?


      • aaa839    28 May 2017 @ 21:09   

        The Insider Update
        Windows 1703 Build 16199


        • CarvedInside    30 May 2017 @ 07:12   

          I checked on Windows 10 v.1703 Build 15063.296(release channel) and microphone work fine in Skype Modern App, but on Voice Recorder app it’s volume low. Since you are on the Insider branch, your microphone issues might be from a yet another newly introduced bug.
          You could try to set another device as default in Windows Volume->Recording devices and then set it back to ASUS Xonar DGX microphone. Another thing you could try is to untick “Allow applications to take exclusive control…” from Microphone Proprieties -> Advanced.
          If you really need the microphone in Skype App or some other app and there isn’t a solution in sight, you could connect the microphone to the onboard card and if it works use it that way.


    • Astek86    27 May 2017 @ 19:55   

      I have a problem with this. But I did not find the solution. Xonar D2X


  7. Bobsen    28 May 2017 @ 12:00   

    Hi all,
    Anyone know how to change the default language to English? I am using Win 10 pro in Denmark with OS in English, but regional settings for Denmark. Using version UNi-Xonar-W10-1825-v1.81a-r2 on a asus essence stx ii 7.1. Also are there any other programs (software) with this sound card?
    Thanks in advance,


    • CarvedInside    29 May 2017 @ 03:50   

      Hi. In which application do you wish to change the language (Asus Audio Center, C-Media Panel, UNi Xonar installer)?
      I don’t understand exactly what you are asking in the second question. You can find additional software for you card listed at the end of the post above, after the UNi Xonar download links.


      • Bobsen    29 May 2017 @ 06:18   

        Hi, thanks for the quick reply. I would like to change the language from Danish to English in all of the applications if possible. Normal the is some sort of option to to choose the default language but I cannot seem to find it.
        Thanks again,


        • CarvedInside    30 May 2017 @ 06:37   

          Hi. Instructions for overwriting language with English for Asus Audio Center: 1) Download this archive 2) Exit Asus Audio 3)Extract archive contents somewhere. 4) Copy extracted files and replace those from “C:\Program Files\UNi Xonar Audio\Customapp”.
          You don’t specifically mention C-media Panel having the same language problem. If it has the same problem you should let me know so I could look into it.


        • CarvedInside    02 Jun 2017 @ 01:06   

          Hi. I’ve modified the C-Media Panel to force use the English language. This is for .a drivers only. Instructions: 1) Download this archive 2) Exit C-media Panel 3)Extract archive contents somewhere. 4) Copy CmiCnfgP.dll from the extracted files and replace the one that is in C:\Windows\SysWOW64. If you have a x86 Windows then you need to replace the file that is in C:\Windows\System32\.
          Let me know if it works properly.


  8. ymo1965    28 May 2017 @ 15:40   

    Greetings. I had been experiencing system lockups and BSOD (win7 64bit) playing ‘Styx – Master of Shadows’ on Steam. I narrowed it down to the cmudaxp.sys with the usual ‘Driver Irq Not Equal’ message. I noticed the official drivers from Asus were from 2013. Can’t believe they havent updated them since then but glad these unofficial ones are still being worked on. Sadly though this issue is still happening. Leave the room for a few mins. Come back and greeted to another BSOD :/
    I have tried removing the drivers from windows7 and even tried reinstalling the original disc drivers because one forum said it does work. Well it didnt for me. I also have issues with windows 7 reinstalling the drivers again after rebooting. I did find a webpage what gave a guide to stop this, but again it didnt work. Hope you could suggest something please. I may be forced to use onboard sound if this carries on.



    • CarvedInside    29 May 2017 @ 04:00   

      Which audio card do you have?
      Regarding BSOD, some things you could try: 1) Install the UNi Xonar drivers with Low DPC latency configuration. 2) Try with v1.80b drivers. 3) When installing the drivers select “Run driver cleaning before install”.
      About the second problem, with driver installation, you would have to be more specific. What is the problem (drivers do not install, drivers only work until restart), which drivers are you installing, which guide?


  9. Arczi    02 Jun 2017 @ 17:49   

    Can you add somehow to Xonar DG microphone boost slider?
    Right now I can just select “microphone boost” but that is not enough. That is disappointing ;\

    In my integrated audio driver I can boost to +30db.


    • CarvedInside    03 Jun 2017 @ 00:25   

      Until now I could not find any way to increase the microphone boost.
      You can use the microphone connected to your onboard audio card and still use your Xonar as output.


    • CarvedInside    24 Jul 2017 @ 18:17   

      If you are still interested, I found a way to increase microphone volume by 3 dB. You can check this tweak here.


  10. Allen Gabriele    05 Jun 2017 @ 13:49   

    Thanks for writing these things, seems like a good idea.
    Having successfully installed, as far as I can tell, the package, by following the various recommendations (on W7x64SP1 all updates), even though sound comes out of my headphone, the interface does not run. AsusAudioCenter.exe starts and immediately quits (known by watching ‘Process Explorer’), no window ever appears. (AVG and all such disabled)
    Any suggestions?


    • CarvedInside    05 Jun 2017 @ 14:40   

      Which audio card do you have and which driver have you installed?


      • Allen Gabriele    06 Jun 2017 @ 05:11   

        Essence STX II. The installer auto-selects Essence STX II so I accept it. I opened the drop-down to see what’s there. I keep the radio button at the top active, ASUS interface. I installed to an image that never saw drivers for this card before. On-board sound is disabled in BIOS. Driver enforcement turned off during boot. Motherboard is ASUS Z-97 Pro (Wi-Fi ac). Video is Quadro M4000. Actually the sound comes from some self powered speakers connected to the RCA jacks, not the phones, and there will be no change to that.
        I used the 1.80a installer.

        I think your driver sounds better than the one from the ASUS site. What did you do? Obviously I’m just hearing the default state.


        • CarvedInside    06 Jun 2017 @ 05:20   

          Your comment above was written as a new comment instead of a reply to the discussion we were having. I moved it but for future comments please use the reply button properly. When replying to an existing discussion use reply button floating on the right of the comment you are replying to.

          Now getting to the problem with Asus Audio Center. Have you read and did what it says in the 1.80a release notes: “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\””?


          • Allen Gabriele    06 Jun 2017 @ 14:00   

            Bingo. Thanks!


          • Allen Gabriele    06 Jun 2017 @ 14:58   

            Wow. I was thinking I might return the card, it was so harsh in 1 to 6K range. Perversely so. Thanks again.


            • CarvedInside    07 Jun 2017 @ 22:38   

              Differences in sound quality could be because the v1.80a drivers have a different audio driver(1823) than STX II original drivers and UNi Xonar v1.80b(STXII 11.5) or it could be a result of the changes I made to fix something else. If someday you have time to try v1.80b drivers then will know which of those is responsible for differences in sound quality.


  11. Daniel G    07 Jun 2017 @ 17:14   

    Hey, dumb question but I’ll ask it anyway, i’m using Astro A40’s with Xonar D2 at the moment, which one of these drivers is it that I should download? I take it it’s the UNi Xonar STXII 11.5 v1.80b r3, just want to double check with you. Been having some trouble with the 7.1 setting, The Rear left and rear right kinda sounds the same as the normal left/right ones, very hard to differentiate between them, anyway thanks alot for all the effort you put into this.


    • CarvedInside    07 Jun 2017 @ 23:37   

      Hi. Can’t recommend a driver version. You should try a couple of them and see which one works best for you especially since you have this issue with “7.1 setting”.
      Did you connect the headphones to the Xonar card through analog jacks or digital output? What is the “7.1 setting” that you are referring to?


  12. Des Y    08 Jun 2017 @ 16:51   


    I’m using the latest version for win 10. I have a Xonar DSX.

    For some reason I have the same sound coming out from both my front and rear speakers without any differentiation. It’s like having 4 front speakers.

    It’s set to 5.1 on windows and the Audio Centre.

    Pls advise.


    • CarvedInside    09 Jun 2017 @ 11:31   

      Hi. Are using the analog or digital output? In Audio Center, have you set both 5.1 speakers and 6 channels? Does the speaker test work properly? In which situation you are getting this behavior (playing stereo music, watching a movie, in games)? Since when you have the Xonar DSX, did you always had this behavior?


      • Des Y    09 Jun 2017 @ 11:48   

        I’m using analog. Have yet to test it for digital to my receiver. I have that setting in audio center plus 5.1 in windows. The speaker test works fine except for the rear speakers. The front and rear plays at the same time. This happens for games, movies even youtube. The only time it works is when i play a DD or DTS sound clip.

        I just bought the DSX. Used to have the DG on win 7 which took alot of troubleshooting to get working right.


        • CarvedInside    09 Jun 2017 @ 12:16   

          To me it sounds like a case of stereo upmix, but that would only happen if you haven’t set Audio Channel to 6 channels. Try installing the drivers without “Re-enable stereo upmix” option in the UNi Xonar installer. Try different driver versions.
          If none of these work, try your card in another PC, preferably one with Windows 7 and see if you still get the same behavior. Might be that your card has a hardware defect.


  13. Allen Gabriele    10 Jun 2017 @ 22:33   

    The release notes for 1.80 say there is a DPI scaling device in the installer. I use a 5K monitor and the interface is perfect for amoeba, but for me, not so much. How can I activate the scale compensation feature? There is nothing in the selection panel at the begin of the install.
    I’m using the top radio, ASUS interface, in the 1.80a installer. If it’s a registry hack, I’m OK with that too.


    • CarvedInside    10 Jun 2017 @ 23:32   

      Maybe what I said is misunderstood, what I was saying is that the UNi Xonar installer is DPI aware, it’s just the installer, it does not affect the Asus Audio Center. Prior to v1.80 the installer items would overlap on higher Windows DPI settings.
      If your problem is in fact with ASUS Audio Center not scaling with higher Windows DPI settings then that’s a different matter. As far as I know there isn’t anything that can be done about it, but you can use XonarSwitch or maybe C-media Panel (I’m not sure if this one works correctly) instead.


  14. Alper    12 Jun 2017 @ 13:32   

    Great job ty for your work. I have asus xonar d1 should I use “UNi Xonar 1816/1823 v1.80a r3” or “UNi Xonar STXII 11.5 v1.80b r3” which one you recommend for this card.


  15. Michael    12 Jun 2017 @ 17:05   

    Hi, I’ve recently started using UNi drivers (UNi Xonar W10 1825 v1.81a r2). I have Xonar ST and Windows 10 (1703). I usually listen music using foobar2000 (1.3.15) with ASIO support. I’ve installed UNi (Low DPC) because of constant skype error during shutdown, but turns out I can not watch any videos, be they youtube videos or files in windows, while listening music using ASIO. Videos simply play like at 1 fps. When i switch to primary sound driver in foobar2000, everything becomes fine, but when using ASIO, can’t watch any video, which is sad, because I watched them perfectly fine, while listening music in ASIO using official drivers. Is there any workaround? If not, can you, please, fix this in future releases? Thanks.


    • CarvedInside    12 Jun 2017 @ 23:13   

      Hi. The issue is probably related to 1825 audio drivers that are included in the UNi Xonar 1.81a release, if that’s the case I can’t do much about it. Try previous drivers like v1.80a or v1.80b. If you still have the issue then try the UNi Xonar drivers that have the same audio driver as the original Asus drivers you where using (1825 represents the audio driver version in UNi Xonar v1.81a). If you still get the issue, try the original drivers again and see if they still work properly.



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