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. kadopt    05 Nov 2012 @ 05:32   

    Today I bought a copy of Windows 8 Pro x64 as it was really cheap (30€) but I'm having some issues with openal sound. I only get "software" sound in winamp's openal plug in and that way i don't get surround sound, in windows 7 i can choose either "hardware" or "software" (hw = surround / sw = all sound mixed at front speakers).

    Is there a specific way to Install the drivers (driver enforcement or test mode etc) or are there known issues with gx in windows 8? (gx is necessary for openal to work).
    I'm back at windows 7 by the way and used 1813 uni xonar drivers.


    P.S.=is it me or w8 is slow specially while is messing around with the registry during application instalations?


    • CarvedInside    05 Nov 2012 @ 15:22   

      I don't know what could be the problem.

      On another matter. Since you have everything set up maybe you can check something else . In win7 while GX is on, can you check if openal playback does still work if you kill HsMgr processes in task manager?


      • kadopt    05 Nov 2012 @ 16:22   

        killed both (HsMgr and HsMgr64) and I get an error:
        "could not initialise openal"
        This pops up during winamp startup and i get no playback.

        there was one time when the error did not pop up and it was working only in "software" mode, all other tries gave the error window and no openal


        • MasterFaster    05 Nov 2012 @ 17:41   

          To kill GX just delete or rename the files HsSrv.dll and HsSrv64.dll


          • kadopt    05 Nov 2012 @ 17:53   

            i killed like CarvedInside said… not even with the stock w8 beta drivers from asus openal works properly! man i was baited by the low price… damn bastards!


        • CarvedInside    05 Nov 2012 @ 18:29   

          I see. Thanks 🙂


        • MasterFaster    05 Nov 2012 @ 20:00   

          I don't have any problems with openal plugin for winamp. Something is wrong with your installation. Uninstall, reboot and reinstall OpenAL.

          Winamp OpenAL Output Plug-in v1.0.0

          Note: the setup file is same from both download pages (different name though)


          • CarvedInside    05 Nov 2012 @ 20:12   

            He does not have a problem with OpenAl in Win7, only in win8. And I asked him (for my info) to check if OpenAL is tied in with HsMgr processes or not.


            • MasterFaster    05 Nov 2012 @ 20:19   

              Sorry then, I misunderstood. Unfortunately I cannot help with Win8. I don't have them install nor I will, at least for now.


          • MasterFaster    05 Nov 2012 @ 20:15   

            Though I do use my 1815 driver pack, but I doubt if this is related to 1813 driver. Personally I have also tested UNi Xonar 1.63 and they work great. So, kadopt as I said I can only think that something is wrong with your installation. Try to reinstall OpenAL or Winamp or the openal plugin (it needs vs2005 redist I think). Else uninstall the UNi Xonar drivers, clean any leftovers and then after a reboot, reinstall them.

            CarvedInside: May I ask if the samplerate changes works on WinXP in new C-Media Panel ? Is SampleRate switch needed anymore?


            • CarvedInside    05 Nov 2012 @ 20:18   

              New Cmedia Panel is exactly the same as the old one. It doesn not have Sample Rate options in it.


            • kadopt    05 Nov 2012 @ 21:40   

              actually extra stupidity from ms may be added in Windows 8. the original openal v1.0 plugin compiled with vs2003 is not even loaded by winamp in win8, in sorceforge there's a build made with vs2010 and that works fine exept for the issues explained before.
              it's more like the xonar gx is not able to "fool" the os in thinking that hw accel exists. you can check in winamps ds output that hw accel is supported if gx is enabled win win7.


              • kadopt    05 Nov 2012 @ 21:44   

                I really just wanted my 4.0 setup in winamp working, but could not find any plugins to replace openal's one. 🙁 at least kernel streaming works and bypasses Windows mixer.


                • kadopt    06 Nov 2012 @ 03:49   

                  ok after some serious testing here’s the results for openal in w8:
                  1-a=>using a “standard” administrator account if i run winamp normally i get hw accel but enhancer does not acess the registry,
                  1-b=>if i run winamp “as administrator” theres no hw accel but enhancer works normally.
                  2-a=>using the hidden administrator account if i run winamp normally i don’t get hw accel but enhancer works normally,
                  2-b=>if i run winamp “as administrator” i get hw accel and enhancer works normally.

                  eventually for part 2 it works ok both ways… I don’t really get what’s wrong with this OS but ok…

                  ALCapsViewer helped as well to diagnose this.

                  metro apps don’t work with the hidden account!
                  this is madness!



                • anonymous    07 Nov 2012 @ 17:50   

                  Just so you know, Win8 implements new sound model, which brings back the hardware acceleration if driver supports it. Problem is, as always with new systems – i wonder if there’s any driver out there, that actually took this new sound model into account.


  2. Mark C    06 Nov 2012 @ 05:26   

    Could you or anyone please upload the driver(s) to a different site? I've already spent too much time trying to download it. Even after deleting all cookies as per… it keeps restarting. This happens in every browser I have, IE, Firefox 16 and Chrome.


  3. NSK    06 Nov 2012 @ 06:28   

    Hey guys,I tried uninstalling the 1.63 beta driver but since i got Windows 8 (Pro x64) I haven't been able to because I keep getting the following error:

    "Microsoft Visual C++ Runtime Library

    Runtime Error!

    Program: C:WindowsSystem32cmeauoxy.exe"

    Any help would be very much appreciated.
    And thank you for your work, Carved


  4. Virus    06 Nov 2012 @ 15:09   

    New FP Switch –

    – device is not restarted
    – sound may by playing and switch will work
    – BSODs caused by old FP Switch – gone !

    – currently do not change speakers configuration


    • MasterFaster    06 Nov 2012 @ 17:11   

      Thanks, I have tested it and it works well.


    • DamnPete    31 Aug 2013 @ 18:56   

      Awesome! Been looking for this to setup a hotkey… Any reason why it doesn’t switch speaker config?

      I use 2.1 on rear panel and headphones on front panel… I opened the source code, but I don’t know what KSPROPERTY I should be trying to change, and now that I read this perhaps it’s more complex than just changing a single ID… If it is as simple as that, could you tell me what KSPROPERTY settings I should be sending to DeviceIoControl?

      Thanks 🙂


  5. Smeggy    06 Nov 2012 @ 15:49   

    I don't mean to sound critical;but would it be possible to give Master his own sub-forum as Alexa has? I applaud your hard work but it is dominated by DX related issues where as Uni drivers are well (Uni)fied across all cards. There are alot of extraneous posts to go through which have little or nothing to do with other Xonars. Thanks


  6. Nozdy    06 Nov 2012 @ 18:00   

    Guys, need your help. I recently installed the 1.63 uni drivers and thus my asus Xonar DX card went from being detected in device manager as a "Multimedia Controller" to a C-media audio under the "Sound" devices tab. Once installed, under playback devices i put the c-media speakers as my default but I am getting no sound whatsoever from my speakers. When putting some music i see the c-media speakers green bar moving but I cant hear any output.

    Prior to doing this I disabled onboard on BIOS and uninstalled the previous realtek drivers. I am kinda lost in this so any help would be appreciated. I am not sure if I need to RMA the card or should try something else?

    My only guess is that the Xonar DX is not receiving the power from my power supply. I've already tested the molex connector with a couple of fans successfully. Maybe the power receiver on the card itself is faulty?

    Thanks in advance!


    • CarvedInside    06 Nov 2012 @ 18:31   

      Card should be detected as Asus Xonar DX even with UNi Xonar drivers. You haven't mentioned butI guess the same is happening with Asus original drivers.
      If you can, try your card in another PC. If the same problem occurs then you should RMA.

      Could be something related to the cards power system or with the card's chipset.


      • Nozdy    06 Nov 2012 @ 18:59   

        Yeah my bad, I tried also with Asus original drivers, but always got the message "Please plug in the Asus Xonar Audio card" or something along those lines. Unfortunately I dont have a multi-meter to test if the card is getting power heh, but maybe my safest bet is to RMA :(….

        Appreciate your help Carved!


        • CarvedInside    06 Nov 2012 @ 20:12   

          Also you might want to have a look at this page.
          Let me know if restoring EEPROM helped or not.


          • Nozdy    08 Nov 2012 @ 17:45   

            Well restoring the EEPROM didn't help. Before doing the RMA I tried on a pc at work. Same results, no sound. Most probably is a faulty card. Will report back when I get the new one. Thanks for the help!


  7. John T    07 Nov 2012 @ 05:31   

    Can anyone help me solve this problem? I installed the driver, but the Asus Xonar Audio Center software won't open. It doesn't open if I click it or on startup. The C-Media program will open though. Also, if I'm using the C-Media panel what options should I have set if I'm using an Astro A50 headset through the optical out? It needs DDL to have surround sound. Thanks 🙂


    • CarvedInside    07 Nov 2012 @ 15:10   

      You know, it would be useful to know your card and OS.
      Do a clean driver install like mentioned in the FAQ.


      • John T    07 Nov 2012 @ 15:16   

        Xonar DX. Windows 7 64 bit. Asus p8z77-V mobo. I did a clean install and even reformatted my crucial m4 256gb ssd, but the Asus Audio Center still doesn't start. C-Media will though.


        • CarvedInside    07 Nov 2012 @ 16:13   

          I am guessing the Asus Audio Center does not work with Asus Xonar drivers as well.
          If you also tried a fresh Windows install, then it could be a software conflict with one of the other drivers or applications you have installed.

          For C-media panel options this manual could be useful.

          LE: DDL option is under S/PDIF Output on the main page.


          • John T    08 Nov 2012 @ 01:48   

            Should I choose 8 channel for system input? If so do I enable Xear 3d and 7.1 virtual speaker shifter. I’m using an Astro A50 wireless 7.1 surround sound headset.

            I actually uninstalled all other audio drivers and disabled oboard audio in the bios and it didn’t work. Then I reformatted my ssd and it still didn’t work.


            • CarvedInside    08 Nov 2012 @ 02:28   

              Set 8 Channel but don’t enable the other 2 options.

              I was referring to a conflict with any of the other drivers not just audio ones. If you have no suspicions, this is hard to diagnose, a method would be to install Win7 and Xonar drivers and then add the other applications and drivers and see since which one the Xonar panel doesn’t work anymore.
              Anyway here are a few other things you can try: if your windows isn’t updated, try updating it. Try with different UNi Xonar versions 1.53 , 1.63 & 1.64.
              Other than this I don’t know what else to say regarding this.


  8. ben copeland    07 Nov 2012 @ 19:02   

    is there a way to dual the outputs? I need to dual my headphones and speakers I cannot find a option to do this?


    • CarvedInside    07 Nov 2012 @ 19:25   

      You haven't specified which OS do you have. Please from now on whenever you ask for help or information don't forget to include at least some basic information (OS, Xonar card).

      Assuming you have Win7/8 and you have 2 or 2.1 speakers (and not 4, 5.1, 7.1) try this:
      Connect headphones to rear speakers jack and speakers to front speakers jack or the other way around.
      Install the UNi Xonar drivers with “Re-enable stereo upmix” option selected. Set the following settings in Asus (or Cmedia) Panel: audio channels:2 sound analog output: 4 speakers. Maybe some games/applications will require to manually set ingame sound speaker config to 2 channels.


  9. ChriscomIT    08 Nov 2012 @ 06:32   

    Hey Carved,
    many thanks like ever for the updated driver package! I did a complete uninstall and clean-up of 1.63 driver package. And 1.64 installs fine but if i select "Mixer" tab in C-Media Panel i get "rundll32 – windows host service stopped working" error. and C-Media panel is crashing. Asus Audio Center works without problems. Seems like 1815 driver is not compatible with recent C-Media panel version. Can anyone confirm this issue?? I am running a D2X. Thx!


    • ChriscomIT    08 Nov 2012 @ 07:06   

      Problem solved! 2 driver clean-ups not finished properly. After a third attempt all works! Muchas Gracias amigo!!!


      • CarvedInside    08 Nov 2012 @ 16:19   

        Good job:)

        Did you do a driver clean with Driver Sweeper or Driver Fusion, or only with the UNi Xonar build-in driver cleaner?


        • ChriscomIT    08 Nov 2012 @ 16:49   

          Thx! 😀
          For the first time i just used the UNi Xonar built-in driver cleaner. After no good i used Driver Fusion and Uni Xonar built-in driver cleaning but again no good. At least i uninstalled UNi Xonar driver from "program & features". Then reboot! Then use drivercleaning.bat from help section. Reboot again! After that i was using Driver Fusion ( that showed me 4 left prefetch entries from c-media panel) deleted all left over driver junk. Then rebooted! After that i finally installed up tp date driver package (1.64beta). Reboot! And i / you will good to go!


  10. ChriscomIT    08 Nov 2012 @ 16:53   

    Reblogged this on The IT Crowd und kommentierte:
    New driver!


  11. TC    08 Nov 2012 @ 23:41   

    I have a Xonar DSX and I'm trying to use both rear analog output and FP. Realtek and Creative has 2 different devices for those so I could easily map rear analog output for mp3 player and FP output+mic for headset.. However, Xonar has only 1 device and I can only switch between FP and Rear output..
    Is there a way to use both simultanously ?


    • CarvedInside    09 Nov 2012 @ 00:11   

      Don;t think there is a way.

      If you have 2 speakers, you can use the side speaker channel rear jack for headphones.How to.


      • TC    09 Nov 2012 @ 01:18   

        If I do that way, wouldnt I have same audio stream from speakers and headphones ? I want 2 seperate audio streams over rear jacks and FP….Looks like I will have to go enable noisy realtek again and plug FP jack to it.. And ruin my dreams of listening to my music with headphones.


  12. psychok9    09 Nov 2012 @ 04:15   

    Hi! I've tried today your last beta drivers 1.64 on Windows 7×64, with X-Meridian 7.1 and seems ask again "compatibility mode". It's normal?


    • psychok9    09 Nov 2012 @ 04:18   

      ** I mean Mode test, this:
      bcdedit -set loadoptions DISABLE_INTEGRITY_CHECKS
      bcdedit -set TESTSIGNING ON


  13. MasterFaster    09 Nov 2012 @ 15:35   

    HT Omega Claro – Auzentech X-Meridian – Win8 Driver v8.0.8.1815 – Valid signatures.rar (1.68MB)

    All signatures are verified

    Note: CarvedInside there are additional changes in CMPCIP4.INF

    This is not a driver pack with setup etc.

    It only includes the modified .INF files, the driver .DLL and .CAT files, backup 1796 .INF files (from Auzentech's driver pack), changes notes for .INF files, and signature test results.


    • MasterFaster    09 Nov 2012 @ 17:01   

      I saw the new changes in CMPCIP4.INF from HT Omega Claro driver


    • CarvedInside    09 Nov 2012 @ 17:23   

      In 1.64 I missed the fact that the non-asus inf files where changed.
      Thank you.


      • MasterFaster    09 Nov 2012 @ 18:11   

        No problem. That's the help I want to provide from now on:

        I will provide test results and any other useful info I can find, to make it a good use in UNi Xonar.

        p.s.: I don't know if you are using the old v1.0.0.18 CmEnhance.dll or the newer v1.0.0.19 CmEnhance.dll
        But between the two I haven't found any difference.
        Thus, in my very last release (which is posted ASUS forums), I used the newer v1.0.0.19 CmEnhance.dll



        • CarvedInside    10 Nov 2012 @ 02:29   

          Ok 🙂

          I used .18 . But I don’t think CmEnhance.dll is that important. A newer version could contain directives for a new card.


          • MasterFaster    10 Nov 2012 @ 12:50   

            I agree, you are probably right.

            CmEnhance is actually used only during installation, for device initialization. CmEnhance is not installed and is not used elsewhere. And CmEnhance dll is very similar to vmix dll


  14. psychok9    09 Nov 2012 @ 16:31   

    Thanks MasterFaste, but this drivers freezes during the installation on my computer.


    • MasterFaster    09 Nov 2012 @ 16:54   

      The .INF and the driver files have valid digital signature. This means that the files are identical with the official files that C-Media has. So there is no need for enabling test mode etc.

      The purpose of the pack was to provide info to CarvedInside and thus he can fix/update (if needed) the files that cause the problem. I haven't checked/extracted the latest v1.64 UNi Xonar to see if there is any problem with the .INF files.

      @psychok9, to update your current driver use the device manager. You can do this in safe mode to avoid conflicts. Or wait for CarvedInside to release a new UNi Xonar driver pack.


  15. Smeggy    09 Nov 2012 @ 16:42   

    I’ve tried today your last beta drivers 1.64 on Windows 7×64/D2X. All works well….thanks again.



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