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UNi Xonar Drivers 1.80 (post periodically updated)

Page updates/changelog:

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)


UNi Xonar Features

FAQ & troubleshooting guide (updated 12 Jun 2016)

Useful tips & suggestions | Known issues & workarounds (updated 22 Mar 2016)

UNi Xonar installer addon documentation

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 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.
  • Windows 10: Fix for microphone not working with some 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).
  • 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.

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.
  • 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).

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.

Known issues:

  • GX is not 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.

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.

Read Previous Release Notes


Notes about Windows 10 RTM compatibility (updated 28 Nov 2015)

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 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 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 (for Windows only):

  1. UNi Xonar 1816/1823 v1.80a r3      mirror1     – latest
  2. UNi Xonar STXII 11.5 v1.80b r3      mirror1
  3. UNi Xonar 1816/1822 v1.75a r2       mirror1      mirror2       – recommended
  4. UNi Xonar STXII 11.5 v1.75b r2       mirror1      mirror2
  5. UNi Xonar 1816/1822 v1.72    mirror   
  6. UNi Xonar 1816/1821 v1.71    mirror
  7. UNi Xonar 1814/1818 v1.70   mirror   
  8. UNi Xonar 1814/1815 v1.64 r2   mirror    – proven stable
  9. Older versions : v1.63 beta; v1.62 betav1.54 ; v1.61 ; v1.53

Official addons (documentation):

  1. “1777 drivers + Asio 1.0” aka “ASIO 1.0 Patch”. 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 scripts made by Virus. Before running the files, close any audio source/application. Legacy, preferably use XonarSwitch  and configure it with separate profiles. 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. 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

3. 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.


  1. tamura    12 May 2016 @ 21:05   

    How to use 2 soundcard . I have asus stx and hdav 1.3 . sry my english is bad


  2. Alex    17 May 2016 @ 02:18   

    so i am having this issue of which i hear more in my left headphone and less in my right. it happened after plugging in my swan hi-fi speakers which i used a 2 cable to 1 converter to connect into the headhone jack and then set it to 2 speakers.

    after i went back to headphones my right ear was always cut off. ive tried everything but i dont want to do the only thing i know that would fix it which is reformatting. i sent the card in they said they tried everything the card is fine.

    i will pay an amount for a fix if you do that kind of thing. im 99% sure it has to do with windows drivers and nothing to do with the sound card or the drivers so if you can help please contact me


    • CarvedInside    20 May 2016 @ 01:24   

      Uninstall the Xonar drivers and install them again. Check the cable and audio system with another device.


      • Alex    20 May 2016 @ 01:51   

        ive done all of the above ive sent the card in it works fine but the only way i could fix this currently is if i reformatted so im trying to avoid that. like i said it has to do with something on windows maybe it was from putting 2 speakers into the headphone jack which used a y cable 2 to 1 and now its reading something like as if it were stuck


    • Azulath    30 May 2016 @ 20:48   

      I have a similar issue (since switching to Windows 10). I am unable to regulate my right headphone speaker – it is always at maximum volume. When I change the general volume – to let’s say 10% – the left speaker is becomes quieter, but the right one stays the same. At 100% generall volume the right one is still slightly louder than the left one. When I try to adjust the balance it only works for the volume I have set at the moment, this means I would have to adjust the balance every time I change my volume.
      I was able to temporarily solve the problem by uninstalling the Xonar drivers, installing UNi Xonar 1816/1822 v1.75a r2 and removing
      one of the two HsMsgr processes from the autostart list. (Both – the 32bit and the 64biti process are run at startup by default).

      However, a couple of weeks later (today) I had the same issue again, without updating any drivers (Windos updates were installed – so they might have been the culprit). I was not able to get my headphones working properly by reinstalling the driver, so I decided to give the default ASUS drivers a try and it seemed to work for a while. (A reason could be that I uninstalled the drivers provided here in a more clean way, meaning that I uninstalled them, restarted my system and then installed the ASUS drivers. When installing the drivers provided here I did not manually remove the old ones since they seem to do that automatically).

      Later in the afternoon I had almost the same issue. This time however, I was not able to regulate the left speaker. Simply restarting solved this issue (for now).

      P.S.: I checked my headphones and the work fine everywhere else

      Headphones: Beyerdynamics DT 770 80Ohm
      Soundcard: ASUS Xonar DX


      • Alex    30 May 2016 @ 23:51   

        i think a reformat would fix it but i have so many tiny files on my pc right now and im in not such a rush. tell me if you find a fix


  3. Simon    18 May 2016 @ 03:48   

    Hi – I stumbled across this fantastic site and the drivers this evening while trying to get my Asus Xonar STX card working. First off, thanks to everyone who has contributed to the drivers and the site – a fantastic resource! All I want to do is output via SPDIF to my Denon receiver and at the same time output to the left and right RCA jacks which are connected to my analog whole house amplifier. Before I upgraded to Windows 10 (I was on Win 8) this worked fine but the upgrade to Win 10 messed it up and I was only able to output to SPDIF.

    I have since uninstalled the Asus drivers and installed the latest Uni driver using default settings. I can now output to the RCA analog outputs but I can’t get SPDIF to work. Here are the settings I’m using in the the Windows Sounds settings and the Asus utility: http://postimg.org/image/z43y72bup/ Any ideas what I might try next to get this all working?

    Any suggestions greatly appreciated.



    • Simon    19 May 2016 @ 07:21   

      OK, so I’ve managed to get the S/PDIF output working but I can’t get the analogue speaker outputs working concurrently with the S/PDIF. In fact, now I can’t seem to get any output from the STX speaker outputs 🙁


    • CarvedInside    20 May 2016 @ 01:22   

      Hi. The issue you are having might be because of a bug within Windows 10 or the current drivers and Windows 10 but I don’t know if that’s the case and have no way to test this.
      I think the correct settings would be to set the “Speakers (Asus Xonar STX audio device)” as default device in Windows->Sound and enable S/PDIF Out-> PCM in Asus Audio Center.
      You should check different UNi Xonar driver versions to rule out the issue being with a specific driver.
      Hope this helps.


  4. Tom    21 May 2016 @ 10:22   

    Will there be anymore update on the drivers?


  5. Wolfsrabe    26 May 2016 @ 21:17   

    Great work, guys! My a few years old STX works great on W7 and also on W10.

    My question: Is it possible to get the driver only for integrate / slipstream in a Windows-Install-DVD, i.e. with the program “NTLite” ?


    • CarvedInside    27 May 2016 @ 03:26   

      Thanks. You can get the driver only files from here (see below “Possible Solution 1”). Drivers installed this way will lack proper settings (sample rate would be set to 96kHz, rear and center speakers delay would be turned on, etc.) so I would recommend that you always install the UNi Xonar driver package after installing Windows.
      Update: You can automate the UNi Xonar driver setup by keeping the “installsettings.ini” file that’s generated after a valid UNi Xonar installation in the same folder as the UNi Xonar driver executable and running the .exe with the “/silent” flag like: “UNi Xonar 1823 v1.80a r3.exe” /silent


  6. Sillor    27 May 2016 @ 15:46   

    Hi! I have a specific problem with your driver. So, after istalling that my Sylenth synth doesnt want to work. Reinstalling driver or reinstalling Sylenth have no effect. But if i delete driver and then run Sylenth with stock ASUS driver or on stock Realtek sound card it works perfectly. Can you advice something to me, please?


    • CarvedInside    28 May 2016 @ 02:37   

      Hi. Tell me your OS, Xonar card and UNi Xonar drivers that you’ve tried.
      You could try with a different UNi Xonar driver version, maybe with the same audio driver version like the ASUS drivers you’ve tried. The audio driver version is something like 1815,1818 or 1822.


  7. Melwax    03 Jun 2016 @ 20:17   

    hi,i have a xonar dgx 5.1 and when i try to install your 1.80 driver my pc freeze al the time.
    can you help me pls?


    • CarvedInside    03 Jun 2016 @ 21:16   

      Hi. By freeze you mean your PC is unresponsive, CTRL+ALT+DEL does not work and you have to reset the PC? Which OS do you have? Have you tried installing v1.75a, if you haven’t try with 1.75a and report back if it freezes or not.


  8. Chris    04 Jun 2016 @ 06:08   

    Couldn’t find in on this and just want to make sure I don’t ruin my headphones. I have a Sennheiser HD 558 that has 50 ohms of impedance, is it safe to put it in Pro gaming amp mode?


    • CarvedInside    04 Jun 2016 @ 19:35   

      As it’s described by the option full name “Pro-gaming Mode or for 32~64ohms headsets” the Pro-gaming Mode is for headphones between 32-64ohm, so yes it is safe.


  9. Zephyr    05 Jun 2016 @ 11:59   


    I bought a xonar dgx more than a year ago now,everything has been working fine besides that when I increase my volume to high,I keep hearing a buzzing noise…
    I uploaded a file in case anyone wishes to hear it https://www.mediafire.com/?wvg3ww29asqjv63

    Could it be because my sound card is too close from my gpu and thus creating interference?
    If that is the case I don’t know how to fix this…I think I only have one Pcie slot 🙁


    • CarvedInside    07 Jun 2016 @ 09:35   

      Hi. In the recording you’ve attached it’s to hard to hear any sounds.
      The buzzing noise could be because of EMI(Electromagnetic interference). You could try solving this by making a EMI shield for your Xonar card.
      You could also look into connecting your PC to a grounded electric outlet.


      • Zephyr    07 Jun 2016 @ 14:12   

        Thank you for your answer,
        I will try to do that regarding the EMI shield
        as for the sound file,yes I was afraid of that it can only be heard at high volume with headphones,I’m also using the pro-gaming mode but I believe my headphones can handle it.


  10. digitalfrost    08 Jun 2016 @ 21:41   

    I have a strange issue. I’m so fed up with it I’ll probably just change sound cards and hope that fixes it. Just wondering if anybody has any ideas, so here we go:

    – I randomly get static to the speakers at full scale, no matter the volume setting in windows
    – This only happens when I’m listening to music with foobar2000
    – It happens rarely, it can not happen for weeks and then multiple times a week
    – It happens after track changes, either automatic or manual
    – Playing the same songs again in the same order doesn’t trigger it
    – It goes away if I change the track

    I think there is a strange thing going on with fb2k and my sound card. I’m using an Asus Xonar DX. I have flashed the 1.1 PLX firmware and I tried to use the Unixonar 1.80 r3 as well as latest Asus drivers (DX_8_1_8_1822_Win8_1_Beta). fb2k is v1.3.10 and I’m using only the SoX resampler and foo_dsp_ambio. The latter is a late addition, the bug also happened without it. I resample everything to 48khz and that is the native sampling rate of my card, as well as in the windows sound settings (24bit/48khz). I manage the card with XonarSwitch.

    It’s really great if it’s 1am and you’re listening to some music while lying in bed, and then BOOM. I’m using a power amplifier, so windows is my only means of volume control. VU meters show the power output at 10W which should be around 91dBA with my speakers.


    • CarvedInside    08 Jun 2016 @ 23:16   

      FYI I have the Xonar DX and I don’t have the issue. I’ve seen other people reporting some similar issues. In the majority of cases with such issues I think it’s some sort of motherboard and Xonar card incompatibility (some started having problems after motherboard change).
      You should look into updating the motherboard bios, trying a different audio player (my suggestion AIMP with WASAPI output device), setting sample rate to 44.1kHz and checking with the onboard audio card to know if it’s a not some software issue unrelated to the Xonar card.

      I don’t know if 48kHz is the native sampling rate of the card but I know that the claim that the card produces better results on 48kHz is false. You can read more about it here. It’s probably unlikely that the 48kHz sample rate is the cause of the static loud volume but you should check with 44.1kHz.

      Tell us your motherboard, OS and the output device set in foobar2000.


      • digitalfrost    10 Jun 2016 @ 01:20   

        Thanks for the reply. I use an Asus P8Z68 Rev 1 board, I run the 3603 bios which is the newest available (from 2012). OS is Windows 8.1 64bit and I use the DirectSound Default Device in fb2k.

        I’m actually running at 48khz since that is the default sampling rate for most modern games and video formats, plus most of my music is in 24bit/96khz which makes 48khz easy to downsample to.


        • CarvedInside    10 Jun 2016 @ 15:33   

          I was betting you had a ASUS motherboard as ASUS motherboards have the most issues with Xonar cards. Here is another report with loud static noise but appears under different circumstances.


          • digitalfrost    10 Jun 2016 @ 17:20   

            The problems described in the link fit exactly. I also have the issue with the right channel giving out, but a reboot fixes it for me. Oh well, time for another sound card. Thanks for your help.


          • mzso    12 Jun 2016 @ 16:29   

            That’s ironic. It works worst with their own boards…


  11. Isaac    13 Jun 2016 @ 22:54   

    I have a problem with my soundcard Asus Essence STX II !
    when i start a video on youtube or a song on soundcloud, sometimes i get a really LOUD screeching noise occuring randomly !!!
    this problem can appear any time, I am afraid enough of damaged my ears
    can you fix this issues ? in the next UNi Drivers ?
    I meet this bug since I sold my Xonar DS for the Essence STX II on Windows 10 x64
    I find that afflicting after having paid as much for such a top-of-the-range product :'(


    • CarvedInside    13 Jun 2016 @ 23:42   

      I haven’t found a solution for this problem. Just to be clear this is not a UNi Xonar specific problem, you’ll have it with original drivers as well. It seems there are 2 types of somewhat same problem, one that does happen on any any Windows OS and one that happens only on Windows 10. I guess you have the latter, so you may not have the issues on Windows 7 and Windows 8.1.
      You should contact ASUS support and tell them your problem. It’s unlikely they will do anything but they are the ones that should investigate and fix this. If possible you should return the card to the store and get a non ASUS audio card. If you can’t return it, you should not use the card under the current circumstances as damaging your hearing isn’t worth it.


  12. mzso    13 Jun 2016 @ 23:49   


    Do you happen to have some tips how to find the cause referenced in http://maxedtech.com/asus-xonar-unified-drivers/comment-page-176/#comment-124245? For example to find out if it’s a hardware issue?

    If first started to get high latency/clicking on a daily basis when I updated to latest uni-xonar. (I downgraded later, but it remained. It might be a coincidence though)
    I’ve been testing with the integrated sound adapter for a half a day. I still get it, but it seems not as much when I use my D1.
    It’s worst when I watch something on my DVB tuner, the picture falls apart in moments of high latency and there’s clicking/crackling.

    Does this latency data strike you as unusual?

    Here’s some stats now that I put back the Xonar: https://abload.de/img/xon-tuner-1minfnu72.png
    cmudaxp.sys is lot higher up (topmost) than realtek was. The others (usbport, dxgkrnl, ndis, etc…) are around the same as before. T think this accounts for the worse performance with the D1, but why I get too high latency with either is still a mystery to me.


    • CarvedInside    14 Jun 2016 @ 00:01   

      I’ve moved your comment. Next time please make a new comment when your are asking something unrelated to the original discussion of that comment thread.

      For the channel going silent problem, the only way to test if it’s a hardware issue is try the card in another PC (that has not the same motherboard).
      For the high DPC latency problems, you should read The case of DPC latency – 4.Tips & tweaks in reducing DPC latency. I assume you are familiar with the fact that running ASUS Audio Center would increase the DPC latency considerably and you are not using it.


      • mzso    14 Jun 2016 @ 13:36   

        Thanks. I’ll try. Although it looks like the worst offender cannot be helped. I update the VGA driver, LAN driver, xonar driver from time to time, yet it doesn’t seem to get better. Still video (dxgkrnl.sys, nvlddmkm.sys) and network stuff (ndis.sys, tcpip.sys) remain some of the worst.
        I don’t even have an idea what to do with the absolute worst (even before xonar it seems): USBPORT.sys – That’s an OS built in thing, right? I don’t know if it’s possible or if it makes sense to disable some USB ports. Or portcls.sys which is also some of the worst. scsiport.sys is also there, I don’t know why, my motherboard doesn’t have SCSI connectors and I don’t have SCSI devices.


  13. Qarj    20 Jun 2016 @ 21:26   

    Thank you very much for your drivers! These are the only drivers that work with my card. On Thursday 16 June I bought a new Essence STX II sound card and tried for hours and hours to get the official drivers to work. Neither the release drivers nor the beta drivers install.

    Of your drivers, the only ones that install (of the ones I tried, I didn’t try all of them) are UNi-Xonar-STXII-11.5-v180b-r3.exe. Unfortunately it doesn’t work with the Asus Audio Center. When I try to start that program nothing happens. However the C-Media Panel install works. If I run AsusAudioCenter.exe from within the official drivers install files, I get a message “Can’t find any device”.

    Thanks again. This post is mainly FYI and to say thanks. I’ve made a long post about my experience here: http://vip.asus.com/forum/view.aspx?id=20160617031041094&board_id=21&model=Essence+STX+II&page=1&SLanguage=en-us


  14. alexandre    23 Jun 2016 @ 05:42   

    Hey there, i was wondering how i can improve the dolby headphone? Mine sounds like it has lot of reverbation and some echo, and i dont hear where the sound come from at all.



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