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UNi Xonar Drivers 1.72 (post periodically updated)

POST updates changelog (new or updated stuff in the post will usually be marked in red):

  • 06.01.2014 : UNi Xonar v1.72 and v1.64 rev.2 drivers are released.
  • 10.09.2013 : Good news everyone! If you ever wanted to save Xonar settings as switchable profiles, or access to most of the settings while staying away from the Asus Xonar Audio center, or just wanted something better than the Standalone Apps then you should head on to XonarSwitch Beta page (by Giulio).
  • 29.04.2013 : Added to the standalone apps pack  the Headphone AMP switch .
  • See more post updates

UNi Xonar drivers are modded drivers for the following cards:

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

  • Other C-Media 8788 audio chip based cards: Auzentech X-Meridian & X-Meridian 2G; HT Omega Claro Plus, 2, Halo, eClaro; Razer Barracuda AC-1. (more…)


UNi Xonar Features

FAQ & troubleshooting guide (updated 19.07.2014)

Useful tips & suggestions | Known issues & workarounds (updated 27.02.2013)

Having problems installing UNi Xonar drivers? Refer to this topic

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

A WORD ABOUT 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 (like 2 to 5$). Bear in mind you don’t donate for ASUS & C-Media intellectual property & 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 skin, icon, application or any other little enchantments that can make UNi Xonar better. Lets not forget about spreading the word about UNi Xonar drivers and helping other Xonar owners.

RELEASE NOTES UNi Xonar 1818+ 1.7x

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.

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.

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.

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)

Release notes 1.64 rev.2

  • 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.

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.


Note about Windows 8.1 RTM compatibility

While drivers up to 1.71 work with Windows 8.1 , they are not fully compatible. C-media Panel is missing some options and its interface is a little bit different (it’s displaying its Win XP interface). I suggest you try XonarSwitch for changing the needed settings.

There might be some problems with WASAPI playback.

Highlights from previous driver releases

Read Previous Release Notes

Driver Downloads:

  1. UNi Xonar 1816/1822 v1.72    mirror     (latest)
  2. UNi Xonar 1816/1821 v1.71    mirror
  3. UNi Xonar 1814/1818 v1.70   mirror   
  4. UNi Xonar 1814/1815 v1.64 r2   mirror    (proven stable)
  5. Older versions : v1.63 beta; v1.62 betav1.54 ; v1.61 ; v1.53

Official addons (how to):

  1. “1777 drivers + Asio 1.0″ aka “ASIO 1.0 Patch”. Info
  2. C-media Panel v1.62 (fixes stereo upmix turning off)

Standalone apps for applying settings: 

Standalone apps pack  (mirror) containing :

    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* mirror (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)

*All these apps are based on scripts created by Virus. Before running the files, close any audio source / application

Other apps:

    1. Front Panel switch new version*  mirror (by Virus; notes)
    2. ASIO settings viewer/changer (ext link)
    3. Audio re-starter for sound loop problem for Win Vista/7/8 (by Razord93 ; ext link)


  1. Callum    09 Aug 2014 @ 09:23   

    Yes but they work with the built in sound if I disable the DGX card, I’ll update my mouse and keyboard drivers and do some further research aswell. Thank you for help :)


  2. Jesse    09 Aug 2014 @ 12:37   

    Try this. And if it work great. :-)


  3. IceLancer    13 Aug 2014 @ 00:33   

    I just can’t get stereo upmix to work when i setup 6/6 6 input 6 output..
    Sound on rear speakers is soo weak,that its not acceptable.. And center speaker does not produce any sound at all
    I tried with Dll/1.62 addon cpanel and with upmix fix .Both are just as bad..
    If i switch to 2/6 then i get sound as it should,but that is not upmix..in that way i have to switch 2/6 and 6/6 every time i change media i listen/watch..


    • CarvedInside    13 Aug 2014 @ 09:42   

      That’s how stereo upmix works, you could read about it in the FAQ.


      • IceLancer    14 Aug 2014 @ 06:27   

        Well i can’t accept that .On regular asus control panel upmix is working perfectly both ways.The only reason why i was using Uni is cause of that sound enhance from normal asus preventing bluestacks to produce sound.


        • CarvedInside    14 Aug 2014 @ 11:06   

          Which panels have you tried with Uni Xonar drivers? Do you have GX enabled with the original drivers? Uni Xonar drivers should perform just like original drivers, maybe it’s a indirect effect of GX being disabled by default with UNi drivers. Install Uni Xonar drivers with Normal configuration, and stereo upmix checked, and afterwords enable GX in the Asus Panel and see if it the sound is still to weak or is the same as it was with the original drivers. If that’s not the cause, I don’t know maybe try a different version as it is possible that for audio driver version included in the package you’ve tested to behave differently.


  4. näs    13 Aug 2014 @ 01:33   

    The Stand alone apps pack can’t be downloaded. Chrome blocks it by saying it contains dangerous malware.


  5. Jeff    14 Aug 2014 @ 14:12   

    Hi. Is there a way to forcibly limit the volume output capability of the STX? With only 10% volume on the lowest output setting it’s already deafening and there has been several occasions where software glitches (not the fault of the drivers) caused the windows volume to spike in to 100%.

    So would a finer gain control via editing a file or something be possible? I know the STX II advertises an IEM option .


    • CarvedInside    15 Aug 2014 @ 16:11   

      You can lower the volume of each channel thought Asus or C-Media Panel options. For Asus Panel, you can lower the LEFT and RIGHT sliders under mixer tab. For C-Media Panel you need to press the Volume icon on the Output Device pane under Main Settings tab.


  6. semtexxl    14 Aug 2014 @ 14:48   

    Interesting but even with C-Media panel install pack Potplayer is upmixing everything to 5.1 with wasapi exclusive mode with other settings (input, sample rate…) set to “same as input” ?! Normal “shared” mode is ok. Strange behavior. I was trying this for fun as I’ve using foobar always in the same wasapi exclusive mode and everything was/is working flawlessly. Anybody has the same experience on win7 with D2X card?


  7. np11    14 Aug 2014 @ 16:04   

    Are we sure these drivers work correctly? Today I thought I’d install the Asus official drivers for my D2 instead and the sound is actually clearer. I think the FlexBass setting on Unixonar isn’t working as intended so the sound gets muddy because of the excessive bass (I had my suspicions about that after I installed a SBZx on the same box and testing several settings there). Either that or Unixonar messes with the Dolby algorithms perhaps?


    • semtexxl    14 Aug 2014 @ 20:14   

      Interesting post with those muddy bass observation. This is somehow my eternal problem. However like you said official driver is working ok? I’m having similar experience. It is like the bass is going in some strange “circle” of amplification and then back to almost none. Same fact goes to overall sound volume. Sometimes it sounds so pushed forward and loud, rough and in time again soft, balanced (like it should?) It is like my sound signature is constantly changing and I have no idea what is “right”. Although this is present at least for me also with official driver and I’m not quite sure what may cause this problem. I ruled out PSU (it was my first candidate) Now it is completely new Corsair “gold” certified 550W PSU. Way more that my old crap system needs anyway (but it was cheap :) ) and the problem is the same. I think my previous card (Creative Sound Blaster Audigy Live! 5.1) had same issues as well. The last thing I think about is motherboard. I pray to god for some driver “only” issue.


    • CarvedInside    15 Aug 2014 @ 16:27   

      I haven’t made any changes that could cause this. UNi Xonar uses newer audio drivers that you might have included in the official Asus release so its possible that these new drivers might behave differently or buggy sometimes compared to older ones. One thing you could try to install the UNi Xonar drivers with the same audio driver version like the official drivers that seem to be working fine (audio driver version is the 1794, 1800, 1815 and so on number).
      Did you use any Dolby options since you mention them? Which Uni Xonar drivers have you tried and which version where the official drivers you’ve installed? And your OS is?


  8. Andrei    16 Aug 2014 @ 21:25   

    Do you know any software that can do this for an Asus Xonar u7 ? i cant complete instalation with this sound card (its an external one ..)


  9. David Collins    17 Aug 2014 @ 08:46   

    Hi there, firstly thanks very much for developing these drivers. I realise that you are putting this out there in the community at the option for users to pay, thanks again. I have just installed the drivers on my PC, I have switched off the onboard HD audio controller, uninstalled any Microsoft audio drivers and have used the .bat and Driver Sweeper steps to remove all ASUS drivers, reinstall, restart, replace etc etc (I even replaced the DX with a cheaper DSX – thinking ‘less risk’), I have a 6 month old Logitech 5.1 Surround Sound set of speakers which uses the green, orange, black cables (it also offers RCA sockets) and an ASUS P8H61-M LX Mobo, Windows 8.1. I’ve even tried compatibility mode and just cannot get this system to work. I can play music through the centre, sub-woofer, front-speakers but only really dim noise from the rear speakers, I notice that the if I adjust the rear speaker volumes in the ASUS Audio Centre it actually adjusts the volume for the front speakers, so the sound card or software obviously can’t distinguish between them. I am so disappointed in ASUS and have already spent so much time on this. It’s driving me crazy. Please help!


    • CarvedInside    17 Aug 2014 @ 14:26   

      Hi. How do you upmix your music from 2 channels to 5.1 channels? I’ve written about stereo upmix in the FAQ. I think this is your problem.


  10. CyberDC    18 Aug 2014 @ 10:24   

    I’ve got a problem that I just can’t figure out. I’ve got an Asux Xonar sound card with the uni Xonar drivers installed from this site. Everything was working great, and then I did a reformat and reinstall of windows. Now about every 5 to 7 seconds sound will cut in and out. It does it in music and games. I’ve looked at all the settings in both the Windows Control Panel for Sound as well as the setting in the Xonar audio center, and no matter what I tweak I can’t resolve it.

    Nothing physically changed in my system. It was just a simple reformat and reinstall.


  11. mirh    20 Aug 2014 @ 02:00   

    So.. this post took me half the day to figure out and it won’t be short. Beware: lot’s of links are retrieved from the wayback machine which is not an akamai cdn.

    All started by reading on wikipedia that C-media based chips used to support Sensaura audio extension and 3D algorithms thanks to an agreement. (http://web.archive.org/web/20020603205306/http://www.cmedia.com.tw/news/e-sensaura.htm)
    As usual, the more bossing and evil company ever existed in the PC audio world could not fail to spoil this. And so Creative Technology bought Sensaura back in 2003.
    Anyway C-media license keep going on, but it couldn’t last forever. And in September 2008 it ended. (http://web.archive.org/web/20081231002416/http://www.cmedia.com.tw/?q=en/company_news)

    As soon as they could (judging by how stringent they had been in the announcement) all Sensaura technologies were removed from drivers. (cool pdf inbound: http://web.archive.org/web/20060228042934/http://www.cmedia.com.tw/doc/Xear%203D.pdf)
    Now as rule, I wouldn’t be really worried, given that the greatest audio API of the century is already dead and gone for more than a decade… but a review from X-bit labs really stressed how Sensaura tech made a great difference in the overall gaming experience and surround accuracy of Xear3D. (http://www.xbitlabs.com/articles/multimedia/display/asus-xonar-essence-stx_6.html)

    So.. I was wondering.. Mr. CarvedInside.. wouldn’t be possible to add it back to the drivers? I already spent 3 hours probing the net for older drivers. And I’m not talking about my Xonar DX drivers, but -hopefully- the c-media ones you use to work with. Let me post some links.
    ftp://www.club-3d.com/Theatron/ (This includes Club3D c-media based sound cards.. but I couldn’t find accurate sources about their use use of CMI8788 chip)

    Then, I think I ended. I would just to link some goodies I found.
    http://www.ixbt.com/multimedia/sensaura-tech.html and http://pclab.pl/art17707-16.html are the only precise articles describing the licensed technologies I could found. (C-media should have supported every Sensaura specs afaik). Unfortunately they are either in Russian or in Polish. English editors seems to have been very skinny on the argument (http://www.devhardware.com/c/a/Sound-Cards/Audio-Hardware/10/ at the bottom)

    “Sensaura CRL3D HRTF 3D positional sound enhancement with multi-drive” engine was used until the aforementioned end of contract. (http://www.xbitlabs.com/articles/multimedia/display/asus-xonar_11.html). Funnily it was introduced in 1999 (http://web.archive.org/web/19990508190931/http://www.crl.co.uk/wcr/datashee/ds-3daud.htm)
    Last but not least I finally discovered why when I install sound card drivers (including yours) I have this apparently meaningless pcm file (.\Customapp\GX30\3D_Helicopter.wav)
    It seems it was one of the various asset cmedia took from Sensaura and it was originally inside a tech demo (http://www.ixbt.com/multimedia/razer-barracuda-ac1.shtml). No explanation for its stay up to our days though.

    Thanks for your time!
    and btw when I’m talking of the greatest audio API ever I’m talking of Aureal3D ;)


  12. Zaleon    29 Aug 2014 @ 20:09   

    Hi, I just bought the Asus Xonar DSX card as my Creative X-Fi Titanium Fatality Pro was having driver issues in Windows 8.1 and causing it to take almost 1.5 minutes to boot up. With this new card, Windows 8.1 boots up in 12 seconds even without fast boot enabled. Anyway I was a little confused on what settings I should be using with these drivers, the Xonar DSX and my Creative S700 Gigaworks 7.1 surround sound speakers. I found in the FAQ’s that I have to set the driver to 2 channel and speakers to 7.1 to get stereo upmix, but should my setting always be set to this since I am using an analog speaker system? I mainly listen to music, do school work and play games on my system, but I have not tried this with any games yet. The games I play are mainly WoW and ID/Valve games on Steam. I have only done testing with music using Windows Media Player’s default settings to test weather it was working as I plan to reinstall Windows 8.1 later this weekend. One thing I have noticed right off is that the volume and the bass seem to be lower with this card as compared to the Creative X-fi card I was using.

    Also when installing the drivers, if I choose the C-Media Panel without the GX settings enabled, can I enable them later when I play a game or no? I have tried both the Asus panel and C-media panel, but I don’t seem to be missing anything with the C-Meda panel except the GX and Hi-fi buttons. It seems to load faster as you pointed out so I thought I might use it when I reinstall Windows next time.


  13. Hifistelijä    31 Aug 2014 @ 19:22   


    I have Xonar DGX Essence PCIE. I have been using cheap headphones (using AV jacks), until now I bought DT770 120ohm, but cannot get any sound out of any headphone jack. I have installed latest UNi Xonar drivers with Low DPC Latency (no control panels). Audio output can be changed with Asus Xonar Control Panel, but then there will be DPC latency. I don’t want to have control panels.

    Is there any little tool or application, what can switch audio output easily? And also manage ohms? Standalone pack has too many features, I only need to switch audio output and ohm amount.



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