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UNi Xonar Drivers 1.81 (post periodically updated)

UNi Xonar drivers are Windows drivers for the following sound 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, Claro Plus, Claro II, Claro Halo, eClaro; Razer Barracuda AC-1. View full list.

Supported OS: Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows Server 2003, Windows Server 2008, Windows Server 2012 and Windows Server 2016.

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

Linked content:

  1. Introduction

  2. UNi Xonar Features

  3. FAQ & troubleshooting guide (upd 26 Sep 2017)

  4. Having problems installing UNi Xonar drivers? Refer to this topic

  5. Useful tips & suggestions | Known issues & workarounds (upd 22 Mar 2016)

  6. UNi Xonar installer addon documentation

  7. Poll: Rate ASUS Xonar driver support

Contents:

  1. Release notes

  2. Windows 10 compatibility

  3. Downloads

Page updates and announcements:

Previous post updates

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/C-Media work, you do it for the work that I have done and the support I’m providing.

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

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 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 (2.0.0.14), 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.

Previous release notes:

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 “STX II”

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 (2.0.0.13) , 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 1.71.1

Replacement for v1.71 driver package with configuration fixes and updated components.

UNi Xonar Installer changes:

  • Updated UNi Xonar Installer with that from v1.80a.

Driver changes:

  • Updated driver installer, ASUS Audio Center and C-Media Panel with those from v1.80a.
  • Added theoretical support for STX II cards.
  • Fixed GX not being turned off by default in “Normal” configuration for Xonar D2, D2X, DG, DGX and DG SI cards.

Known issues:

  • 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  “S/PDIF Pass-through Device (Asus Xonar…)” from Control panel->Sound. It’s confirmed that the audio drivers included in v1.70 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 1.71

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)
  • GX is not being turned off by default in Normal configuration for the following cards Xonar D2, D2X, DG, DGX, DG SI.
  • 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  “S/PDIF Pass-through Device (Asus Xonar…)” from Control panel->Sound. It’s confirmed that the audio drivers included in v1.70 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 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.

Complete Previous Release Notes

Notes about Windows 10 compatibility (updated 13 May 2018)

UNi Xonar drivers v1.64 and above will work with 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.

Learn which Windows version you have installed.

Windows 10 (multiple versions) possible issues and fixes:
  • Microphone not working – Check this guide. (thanks Shane)
  • Audio crashes – If you have “Dolby Atmos for Headphone” app installed you should remove it and replace it with the updated “Dolby Access” app in order to avoid audiosvr process stack overflow errors that are crashing the audio subsystem. (thanks Chris Leipold)
  • Popping and cracking sounds – If you have a AMD graphics card, try disabling AMD High Definition Audio Device from Device Manager. Possible to try the same steps for Nvidia HD Audio Device for Nvidia cards. (thanks Marc)
  • BSOD’s after system wakeup from sleep – Try UNi Xonar v1.71.1 driver. (thanks Kalle)
Windows 10 version 1803 (April 2018 Update) notes (updated 13 May 2018)

Our community member Chris Leipold reports that the wake up from sleep BSOD, settings reset and not working audio server process at startup issues that where introduced with Fall Creators Update are fixed with Red Stone 4 preview (pre 1803 release).

Possible issues and fixes:

  • Microphone not working – Check this guide. (thanks Shane)
  • Audio crashes – If you have “Dolby Atmos for Headphone” app installed you should remove it and replace it with the updated “Dolby Access” app in order to avoid audiosvr process stack overflow errors that are crashing the audio subsystem. (thanks Chris Leipold)

Possible issues reported so far:

  • Settings (Bit-depth, sample rate, number of channels) reset bug when clicking the volume after restart might still happen (#1)
  • Windows might freeze when installing Xonar drivers (#1)
  • Microphone might not work even after doing the microsoft privacy toggle fix (#1)
  • S/DPIF output might not work at least for some with Xonar DG cards (#1)
Windows 10 version 1709 (Fall Creators Update) notes (updated 13 May 2018)

Reported issues so far:

  • Drivers above 1821 v1.71 may cause BSOD when waking system from sleep (#1, #2, #3). It’s unclear if it is a driver issue or a Windows issue that’s triggered in specific conditions that are met when using drivers above 1821 v1.71. Since ASUS/C-media driver support is pretty much dead and most people didn’t have this issue until Windows 10 Fall Creators Update, people having this issue should contact Microsoft support and submit their crash dumps.
  • Card settings are being restored after each restart. A temporarily workaround would be to save your settings as a XonarSwitch profile and apply it each reboot. Anyone affected should report the issue to Microsoft. Update 6 Feb 2018: it looks like this is fixed in insider builds >= 17074, and it will be fixed in Windows 10 version 1803. Update 8 Mar 2018: this should be fixed with KB4074588 update for version 1709.
  • Default format (bit-depth and sample rate) from Windows Volume->Playback devices and the number of audio channels resets each time the Windows Volume icon is clicked (#1, #2). Anyone affected should report the issue to Microsoft. Update 8 Mar 2018: this should be fixed with KB4074588 update. Update 13 May 2018: This issue might still happen even after installing KB4074588 (#1).
  • Possible high frequency tone when playing audio.

Previous Windows 10 notes

 

Driver Downloads (Windows only) – click here if downloads are not showing



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.
  2. Front Panel switch (new version) – Application that seamlessly changes between rear speakers and front panel speakers output.
  3. UNi Xonar driver cleaner – Standalone driver cleaner based on the one that’s included in UNi Xonar drivers.
  4. Xonar Restoree Extended – Tool to restore Xonar cards hardware ID. The extended version includes support for Xonar STX II and Xonar DG SI cards.
  5. Xonar Driver Restart – Application that will restart the Windows Audio Service and C-media audio driver. Useful for sound loops, no audio output and other issues.
  6. Xonar-EQ – Control Xonar equalizer settings from your Android phone or tablet. By Sascha.

4. Auxiliary audio applications:

  • ASIOConfig – ASIO configuration viewer/changer that can be used when you can’t access the Xonar ASIO Configuration directly. By djdecks.
  • 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.
  • more…

, razer barracuda ac-1 windows 10

7948 Comments

  1. winstroldepot7014 Jul 2018 @ 12:51

    Hello, please help!!!
    after getting my Essence STX2 to run with the “UNi Xonar W10 1825 v1.81a r2” on my win10 pro I always have a constant crackle/rustle (sorry for my bad english there) sounding in between songs. when I stop the playback, this sound starts to get louder and after a few seconds it stops and its dead silent again. anyone know what this is about? I am really new to all this.
    I use a DT990 600Ohm headphone and it works without issues on my SupremeFX/ALC1220 onboard audio from my Rampage 6 Apex mainboard.

    Reply

  2. arx15 Jul 2018 @ 18:54

    hi,

    are you going to update the asio version? unfortunately the ones provided with the drivers for the stx is bugged – and has always been.

    Reply

    • CarvedInside15 Jul 2018 @ 19:15

      Which driver version have you tried? I suggest you try 1.80b that have the latest ASIO version and see if it works better. Let us know of the results and please describe what exactly was/is the problem your are experiencing with ASIO playback.
      If problems persist you might consider using WASAPI playback instead.

      Reply

      • arx15 Jul 2018 @ 23:10

        thanks for the prompt reply.

        issues are: whenever i do something – opening a browser, links, stuff on the pc – i get stuttering and audio glitches until the task is done. tried with every driver but, as soon as i get my card back (final touches..) i’ll try again.

        WASAPI is ok, but bit-perfect is only available through asio. how can i install asio 2.2? if possible at all..

        Reply

        • CarvedInside15 Jul 2018 @ 23:37

          I don’t know what ASIO 2.2 are you referring to, please post the details. The ASIO for Xonar cards has it’s own versioning and it’s different from lets say Creative ASIO versions.

          Reply

        • Sergey17 Jul 2018 @ 02:41

          Yes. I have exactly the same problem. With ASIO, I get stuttering sounds and clicks when working in the browser. With WASAPI, I get stuttering sounds and clicks when working in Windows Explorer. I was hoping to solve the problem with the help of Uni Xonar, but got the same. I use v1.80a-r3 (Windoes 7 64). It’s terrible that Asus releases such products. With the Sound Blaster ZxR, I did not have any problems. But it did not work on Linux, so I bought STX II.

          Reply

  3. Sergey17 Jul 2018 @ 22:06

    I use v1.80a-r3 (Windoes 7 64) and STX II. The driver is installed. The sound is working. But the Xonar Audio Center does not start. What could be the reason?

    Reply

    • CarvedInside17 Jul 2018 @ 22:12

      I’ve separated this question from your other comment since it’s a different topic.
      From the v1.80a release notes “STXII: Asus Audio Center does not work. You need to download this patched version and copy paste it over “C:\Program Files\UNi Xonar Audio\Customapp\”.”

      Reply

  4. Dion18 Jul 2018 @ 05:20

    Will there be support for the Xonar AE 7.1?

    Reply

    • CarvedInside18 Jul 2018 @ 15:25

      As I’ve mentioned on the UNi Xonar Features, Xonar AE 7.1 won’t be supported. It’s using a different audio chip and has different base drivers.

      Reply

  5. Deno20 Jul 2018 @ 07:01

    I dont understand at all. do you release new versions but with the same filename?.

    Reply

    • CarvedInside20 Jul 2018 @ 17:11

      I don’t understand your question. You will have to be more specific. Are you having trouble understanding the deal with revisions or a/b prefixed versions?
      While the versioning is a little bit unconventional, the file names aren’t exactly the same.

      Reply

      • Deno21 Jul 2018 @ 01:09

        I have installed UNi-Xonar-W10-1825-v1.81a-r2, since august 2017. Is it the best driver for me? (xonar D2X on win10), because in april you released a new version of the 1.71.
        Thanks.

        Reply

        • CarvedInside21 Jul 2018 @ 02:32

          For some people older drivers work better or do not have a specific bug, so on occasions I update those older driver packages with fixes or with features from newer releases. In case of v1.71.1 they still have the old audio drivers but the UNi Xonar driver installer and various components are from v1.80/v1.81 releases.
          If v1.81a drivers work fine for you there is no need to install other drivers.

          Reply

  6. Dominic20 Jul 2018 @ 16:34

    Hi.
    What is best atm for win10 x64 for Xonar DX?
    I tried yesterday UNi-Xonar-W10-1825-v1.81a-r2 and I had weird echo/hall effect in my headphones (Arctis7)
    Than I tried to install UNi-Xonar-STX-II-11.5-v1.75b-r3 and got error to connect my sound card.
    Than I tried to install from asus website (official) DX_8_1_8_1823_for_Win10 and everything is ok with sound, but I think with unixonar I can get better sound anyway.
    Thx for help.

    Reply

    • CarvedInside20 Jul 2018 @ 16:58

      v1.75b and v1.80b require Test Mode or Disabling Driver Signature Verification before installing the drivers for your DX card.
      Latest v1.80a is using the same audio driver as the DX_8_1_8_1823_for_Win10 you have now installed and should work just as well.

      Regarding your issues with v1.81a can you tell me which settings have you used? Have you enabled any Dolby features?

      Reply

      • Dominic20 Jul 2018 @ 19:29

        No, just default settings in xonar and windows (no sonic or atmos enabled)
        I’ll try to record it if it’s possible and post it here later.

        Reply

      • Dominic21 Jul 2018 @ 17:42

        I can’t edit my my previous comment so just make new.
        Surprisingly after installing again 1.81a, everything works fine now.
        I simply uninstalled official 1823, restarted pc, installed uni and there is no problem with sound

        Reply

        • CarvedInside22 Jul 2018 @ 22:11

          In this case there is no need to merge the comments.
          It could be that after some Windows update or some application you’ve installed, the Xonar card settings got screwed up. If this happens again and you find the cause please let me know.

          Reply

  7. krustie22 Jul 2018 @ 22:33

    Hello,
    I’ve installed “UNi-Xonar-W10-1825-v1.81a-r2” onto my Windows 10 PC Build 17134. Audio is working and I can control it using the windows volume settings. However, changing settings in the Asus Audio Centre doesn’t appear to be doing anything. Any advice?

    Reply

    • CarvedInside22 Jul 2018 @ 23:29

      Hi. Which sound card do you have? Which settings are you trying to change? Have you tried using C-Media Panel or XonarSwitch to change the settings?
      I would suggest that you also try with some of the previous Uni Xonar drivers like 1.80a or 1.75a.

      Reply

  8. Andrey24 Jul 2018 @ 19:45

    Hello!
    I have STX and Windows 10 LTSB 64bit. I’ve installed UNi Xonar W10 1825 v1.81a r2. And now have a problem. The sound is working from mic and to headphones, but it seems that sound from all my pc (i mean that goes to my headphones) and duplicated to the mic. And other side from skype and discord can hear them and everything that i hear.
    Do you know why that happens?

    Reply

    • CarvedInside25 Jul 2018 @ 04:02

      Hello. Things to try:
      1. Right click Windows Volume icon and select “Recording Devices” or “Sounds”, check that Microphone is the default device.
      2. You should try installing some of the previous UNi Xonar drivers(v1.80a, v1.71.1)
      3. Disable the Xonar card and check with onboard card.
      Tell us the complete Windows version and build number.

      Reply

  9. Dave27 Jul 2018 @ 18:14

    Hi there, i have a 5.1 System and I just figured out, that i have to set the Audio-Channels to 2 in the Xonar Audio-Center to activate stereo upmix. However, if I got it right, this will prevent 5.1 audio sources to be played back appropriately. Isn’t there a way, to automatically detect if the source is stereo (and upmix it in this case) or 5.1, in which case I want it to be played back as its ment to? Thanks

    Reply

    • CarvedInside01 Aug 2018 @ 03:44

      There is no way to do that with the drivers. You could do this in the audio or video player either through changing their default configuration or through the use of a plugin. AIMP audio player does this by default, with foobar2000 you use Channel Mixer plugin.
      For video players things are more complicated since stereo upmixing the sound will mess up the sound for those movies with 5.1 surround sound because the rear channels will have both front and rear sounds.

      Reply

      • Dave01 Aug 2018 @ 18:06

        Hi, thanks for the answer. Though I think its not a very feasible solution to configure it in every single program individualy. I mean im playing mp3s from my harddisk from time to time, most of the time im listening music from youtube (and in firefox I can’t configure any audio settings), I’m watching videos partialy in different players, and finally I’m playing PC games, from which some are stereo and some are 5.1. And to make things worse I most of the time even don’t know in advance if the source im gonna play is stereo or 5.1. For these reasons in my opinion it should be the duty of the drivers to handle upmixing/5.1 playback. If you are saying there is no way to do that with the drivers.. do you mean its not possible with that special driver, or that audio drivers in general don’t do that?

        Reply

  10. Jim M.30 Jul 2018 @ 22:41

    Hi:
    I am a little confused as to which is the best driver for my STX-ll. I am running Windows 7 Ulitimate 64 and using Xonar Switch beta. I have been running UNi Xonar STXII 11.5 v1.80b r3 based on the notes that says STX-ll signed driver and in your comments that it is mainly for the STX-ll. I used this driver since I purchased the card and found the STX-ll driver on your site to replace the stock ASUS (I previously had an STX). i got the urge to check your driver updates and saw UNi Xonar 1816/1823 v1.80a r3. Is this driver version recommended to replace what i am currently running for my STX-ll or should i stay with the b version? Thanks

    Reply

  11. richard02 Aug 2018 @ 09:08

    Hi. With asus drivers i cannot get flexbass to work with 2 or 4-channel files.
    Is it possible to get flexbass working with unixonar drivers,
    I have satellitle speakers and an active sub, and am wanting to send the bass to the sub but it will not do it with asus drivers.

    Reply

    • CarvedInside04 Aug 2018 @ 23:48

      While I still recommend installing the UNi Xonar driver for additional fixes that you may benefit(like Rear and Center channel delays) your problem might be with your configuration. If you have 2 speakers and one active subwoofer try the following guide:
      Guide for Windows 7/8/10
      1) Connect subwoofer to Center/Subwoofer output jack
      2) You need to have “Stereo upmix” enabled if you are using UNi Xonar drivers. Depending on your setup you either have to install drivers installed with “Re-enable stereo upmix to 4, 5.1 & 7.1” option checked or enable it in XonarSwitch.
      3) In the audio panel set the following: 2 channels and 5.1 speakers.
      4) If subwoofer isn’t sounding right, exchange center/bass channels in the audio panel.
      5) In flexbass configuration panel set the L/R speakers size to Small, and Center speaker to Large.
      Let me know if this worked for you.

      Reply

  12. HL02 Aug 2018 @ 21:02

    Tired of BSOD after wake on sleep on Win10 1803 which hasn’t been fixed in a year and persists through multiple Win10 and UNi versions. Going to upgrade to Asus Strix Soar which has a different CMI chipset and WHQL drivers for Win10.

    Reply

  13. AM04 Aug 2018 @ 11:44

    After 1803, whenever the PC wants to go to sleep or monitor turn off, it BSODs then restart instead. I tried the built-in ALC1150 and this issue is gone.

    Reply

  14. kean3D08 Aug 2018 @ 20:21

    hi CarvedInside i read around incompatibility about chipset amd b350/x370 and xonar stx1/2, but i know some users said that with you unixonar works flawesly without problems, just the card refuse to instal with original asus drivers.. i use latest unixonar with stx2 and c-media panel + disable speaker compensation on amd fx + 970 chipset,no problems at all; best combo; now i have to switch to ryzen and new b450 chipset mobo, hope no problems with and your unixonar; finger crossed

    Reply

    • CarvedInside09 Aug 2018 @ 01:14

      Hi. I assume you’ve read this topic. From what I’ve read the card won’t work on the Ryzen motherboards.
      The situation is totally different. The B350, X370, B450, X470 chipsets are made by ASMedia(#1) while old FX 970 was made AMD.
      If you go with the Ryzen with B450 motherboard let us know how it goes.

      Reply

      • kean3D09 Aug 2018 @ 19:56

        yes i read exactly that thread, and the conclusion from Asus..
        on a well know italian forum in the Stx2 topic i asked to my mates, and one said that with x370 mobo the card work well, but only with Unixonar drivers,while with original Asus drivers not work at all 😉 , tomorrow ill assemble the rig with asus prime b450-plus, and ill report then if it (hopely) work

        Reply

        • CarvedInside10 Aug 2018 @ 06:14

          That’s interesting. Do you know or could find out which motherboard your forum mate has?

          Reply

          • kean3D11 Aug 2018 @ 04:40

            its on asus x370 prime if im not wrong; however finished right now assembling and testing bit my new rig with ryzen and asus prime b450-plus, so far so good ,no problems at all with xonar stx2 and latests unixonar 🍻 tested with games, in production with fl studio (asio) ,audio playback (wasapi) all oke till now 👍 i deeply thank you CarvedInside once again

            Reply

    • TuongHo15 Aug 2018 @ 19:20

      My STX 2 is fine with x370 taichi and uni driver

      Reply

  15. Asussucks15 Aug 2018 @ 03:26

    I have an Asus X370 Prime board and the Essence STX II is only partially usable. Installing any driver – Asus or UNI Xonar – might lead to a forced reboot. Switching from backpanel to frontpanel or to headset might lead to a forced reboot. When in headset mode, adjusting audio settings in software and Windows might lead to a forced reboot.
    Using the STX II with my 2.1 system works very well. The headset runs through the onboard sound card. Windows 10 (more bluescreens, crashes and forced reboots than ever) and Asus suck.

    Reply

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