1. Bryan12 Nov 2018 @ 20:23

    In the "Analog Out" options, there are headphones, 2 speakers, 4 speakers, 5.1 and 7.1. Is there any way to add support for 4.1? I have a subwoofer but no center speaker.


  2. Karsten20 Nov 2018 @ 13:40

    Probably this is a dummy question for most of you... but I have no idea how to solve this.

    I am using the Xonar drivers 1823 to operate my Auzentech sound card on W10x64, and it works perfectly fine.
    Recently I purchased a Bose QC35ii headphones.
    When using it with my PC I wanted to get rid of that headphone cable so I got me a Bluettooth adapter.
    Connection as BT headphones works but the sound it not as good as it is with the cable.
    In this case the C-media Panel settings have no effect at all.
    It seems that it is not even part of the audio connection.

    Is there anything wrong with my setup?



    • Case21 Nov 2018 @ 01:09

      You can't just replace cable connection to the soundcard with a bluetooth adapter and expect the sound to be unaffected. Not sure what bluetooth adapter you have got there, but more than likely, that bluetooth adapter is basically acting like a simple soundcard/DAC with obviously worse properties than your Auzentech, and the Auzentech is now just sitting in your PC not doing anything.


      • Karsten22 Nov 2018 @ 20:20

        Thank you. Your comment confirms what I was suspecting. Seems I need to investigate into BT audio transmitters that are connected to audio line-out - or just stay with the cable and enjoy 100% quality...


        • Case22 Nov 2018 @ 20:50

          Connecting to audio out wouldn't help much IMO, even if such thing exists (I am not sure it does), the sound you hear would still mostly be created by the DAC in your BT headphones (unlike when you're just using the wired connection) and it will still be subject to the quality loss that comes with using Bluetooth audio. There's a reason people who care about audio quality rarely use it...


          • Karsten22 Nov 2018 @ 21:12

            So the DAC is inside the BT headphones? That suprises me, because when it's connected to my Cowon J3 the difference between BT and cable is existing but it's not significant. On the PC it's blatant - but still not as worse as it is with a "wrong" profile (phone headset).


  3. Kim30 Nov 2018 @ 22:06

    Hello, i have the Asus Xonar STX(first edition).

    I've been trying something lately i was sure was going to work, but i can't seem to get it working.
    I have two computers, I want the computer with the STX card in it to listen to the other computer.

    So what i've done is connected a Minijack(Line out on the other computer) - 2xRCA(in the RCA input on my soundcard), then i went to soundsettings, found the STX Line in output and checked "listen to this device".

    In my head, everything should be correct and should be working, but i'm getting no sound.

    I would really appreciate tips on how to make this work.

    Thank you alot in advance!


    • CarvedInside03 Dec 2018 @ 10:50

      Line In or Microphone connection for STX is one of the 6.3mm jacks and not the RCA. Check the STX manual to learn which one.
      If "Listen" option should work but if it does not work, disable the "Listen" option and try the "Monitoring" option in Custom tab.


  4. J04 Dec 2018 @ 19:54

    V1823 causing boot crashes on windows 1809.

    On Tue 2018-12-04 12:28:17 PM your computer crashed or a problem was reported
    crash dump file: C:\WINDOWS\Minidump\120418-8093-01.dmp
    This was probably caused by the following module: cmudaxp.sys (0xFFFFF806144F7DDD)
    Bugcheck code: 0xD1 (0x0, 0x2, 0x0, 0xFFFFF806144F7DDD)
    file path: C:\WINDOWS\system32\drivers\cmudaxp.sys
    product: C-Media Audio Driver (WDM)
    company: C-Media Inc
    description: C-Media Audio WDM Driver
    Bug check description: This indicates that a kernel-mode driver attempted to access pageable memory at a process IRQL that was too high.
    This bug check belongs to the crash dump test that you have performed with WhoCrashed or other software. It means that a crash dump file was properly written out.
    A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: cmudaxp.sys (C-Media Audio WDM Driver, C-Media Inc).
    Google query: cmudaxp.sys C-Media Inc DRIVER_IRQL_NOT_LESS_OR_EQUAL


    • CarvedInside04 Dec 2018 @ 22:03

      Thanks for the report. The boot always crashes with v1.80a (1823) drivers? Have you tried any other drivers, especially with v1.81a (1825) and v1.71.1 (1821)?
      What Xonar card and motherboard do you have? Please post the Windows 10 build number.


  5. Catalin11 Dec 2018 @ 22:03

    Hi All

    I have Asus Xonar ST.I wanted to switch to STX ii but for some reason i postponed it.Today i discovered that STXII/STXII 7.1 is not compatible with X370/B350/X470 series MB.


    My system is a
    Ryzen 1700
    Asus Prime B350 Plus
    16gb Ram
    Vega56 8gb
    W10 x64 1809

    My option is either STX or switching to the new Creative SoundBlaster AE-9 when will apear.



  6. c300g9713 Dec 2018 @ 23:16

    Hey guys, just bought a asus xonar dx for dirt cheap, and i've installed the latest drivers from here with the c-media panel.
    Can someone help me to configure it for corsair void stereo headset? Mainly for games, music and discord.
    I really know nothing about sound stuff , but had to change the soundcard due to the fact that the mobo one was broken.


  7. igal16 Dec 2018 @ 17:53

    Why I hear only 3 speakers in 5 ? in test youtube when need back left or right speaker voice be only.. I hear only from the front speaker..need make 5.1 with pioneer receiver set it with an optical cable from the receiver to pc Xonar sound card ?


    • Case16 Dec 2018 @ 23:21

      If by "test youtube" you mean you're playing some sort of surround test from YouTube, then you will never be able to hear the rear speakers as YouTube only supports stereo sound, not surround sound. It's technically not possible to play surround sound from YouTube.


    • CarvedInside17 Dec 2018 @ 22:00

      Case is right, there is no 5.1 audio content in youtube. If you want to upmix the stereo sound from youtube to be played through all 5.1 speakers then tell us which audio card do you have, the Pioneer receiver model and which audio panel do you use (Asus Audio Center, C-Media Panel, XonarSwitch).


  8. bOse18 Dec 2018 @ 13:14

    I got a really nice BSOD after connection my headphone MIC in the sound card

    driver irql not less or equal


    • CarvedInside19 Dec 2018 @ 14:11

      Please provide the following information: The Windows 10 version, UNi Xonar driver version, Xonar card, if you've plugged the microphone in the case's front panel or directly to the card.
      If this BSOD happens again or on multiple occasions you can let us know with an update to your original comment.


  9. Vin24 Dec 2018 @ 18:34

    Am I the only one who has the issue with sound randomly stopping in the right channel/headphone? On Xonar DX l, have tried multiple drivers. Windows 10 - 1809 : was happening as usual on previous Windows buildsm


    • Marco24 Dec 2018 @ 18:45

      All i can say is that i've bought myself a xonar dx a few days ago, and i'm using 1.81a with 0 issues, c-media panel only.
      I'm also using a stereo headset from corsair and the dolby headphone effect on.


    • CarvedInside25 Dec 2018 @ 18:59

      Is this the issue that happens when clicking on the Windows Volume as you've reported here or this time it happens randomly regardless of your actions?

      Normally you shouldn't have this, except rarely. I have a Xonar DX and I only have such an issue once every 1-3 months when waking the computer from sleep or starting up. But I am on Windows 7.

      If the issue is not Windows 10 related, then it might be caused by an incompatibility with the motherboard. What motherboard do you have? Have you tried plugging the card in different PCIe slots? Have you tried updating the cards PLX firmware (see FAQ Q&A:20)


      • Vin31 Dec 2018 @ 06:39

        It's mostly when changing tracks in foobar2000 or sometimes after a long period of my PC being inactive and I do something that plays back audio. Anyways, I recently purchased a Creative Sound blasterX AE-5 to replace this. The Xonar DX gave me excellent audio and always sounded great besides this bug that is a major inconvenience for me. Thanks for the continued support with these unified drivers and good luck to everyone!


  10. Hunter25 Dec 2018 @ 10:02

    The driver menu crashes when trying to select something from the Audio Channel, Analog Out, or the SPDIF Out box for PCM, and it does not set the setting.

    Windows 10 Pro 64-bit (Version 1809, Build 17763)
    Card: Xonar Essence STX
    Tried v1.80a-r3 and v1.81a-r2 with driving cleaning checked and restarted PC both before and after.


  11. Frameskip26 Dec 2018 @ 12:05

    Hi everyone, I thought I will post my tips on how to get unixonar drivers work in the latest windows 10 version, If you ever also want to install dolby atmos for headphones..
    Step 1: Install the latest unixonar driver [UNi Xonar W10 1825 v1.81a r2 1825] along with Disabled Driver Signing option.

    Step 2: Download the official STX driver (not the STX II driver from asus website) and extract it anywhere you desire. Restart with disabled driver signing again and then go to device manager double click on STX II Audio device and go to [Driver] tab and click on update driver-> [browse for driver software]-> [Let me pick a list of drivers] and browse for the STX driver INI file found on the extracted STX driver and install it. If you get blue screens, just keep repeating the process with driver signing disabled.. I think everyone have ssd or M.2 drives these days and ultiple restarts isn't an issue for me.

    Step 3: Install dolby access and if it requires you to restart your machine again, then restart with driver signing disabled and open the app again to install the files and bam! you got dolby atmos + 1823 STX driver version installed. I got only 0.10% reboots yet when changing inputs from speakers to headphones.

    NOTE: if you ever get reboots on installing the unixonar driver in step 1, just keep restarting with disabled driver signing, also clean your registry with Ccleaner. Don't enable any onboard audio too. Hopefully you will have yours fully functional... CHEERS! 🙂 Been listening to music and playing games without those restarts for a week now

    Motherboard: Gigabyte B450 Aorus M
    Processor: Ryzen 2600x


  12. Marco28 Dec 2018 @ 17:02

    I have a weird microphone buzzing issue related to pre-amplyphied option in mic-in..
    Essentially without the option on, the mic volume is too low but once the option is on the mic works fine on discord but it has a weird buzzing in the background and there's no rumour cancellation option, what can i do?


  13. Rademenes28 Dec 2018 @ 18:45

    Hi all. With fresh instalation Windows 10 (at ssd) i've lost sound from Essence STX II. Did everything what people says - turn off internal soundcard on motherboard, unistall all drivers from them and Nvidia, clean setup with original drivers from Asus and UNi with no result. There's less option in Audio Center: no 5.1 or 7.1 which i had at previous system version (on another harddisk) :/ is there any possibility to get sound restore?


    • CarvedInside29 Dec 2018 @ 02:21

      1. Did you installed a newer Windows 10 version than you previously had? Which Windows 10 version do you have?
      2. Is the card properly detected under Windows Device Manager?
      3. Sound doesn't work at all or just 5.1/7.1 does not work because the option is missing?
      4. Are you using analog or S/PDIF output?
      5. Your current speakers work with the onboard card?
      6. If you have the computer case audio front panel connected to the STXII card, have you tried connecting some other speakers or headphones to the front panel and enabling it in the audio panel?


  14. Chris30 Dec 2018 @ 18:30

    Sometimes when coming out of standby I will lose all audio until I restart Win10. Also, in some games I might get the odd stutter when a sound plays. It isn't serious, but I never had this before (could be a latency thing?).
    Xonar D1


  15. Alves30 Dec 2018 @ 18:52

    Hi again, this year I updated my psu (to corsair cx650), my cpu (phenon IIX4 to fx8300) and my video card (gtx 650ti to gtx 1060 6GB) and now I rejoin some games to enjoy the graphic improvement.
    recently replaying Dragon Age inquistion, in an important scene, I put the audio in my home theater, via SPDIF and DTS Interactive. the same asus xonar dsx since the first time I played this game years ago. but now I have sound stutters I believe ... the game freezes for a few moments, making a noise referring to the last sound playing, and then back to normal ... but this has happened many times, only when playing via dts interactive... I do not know what to do ... either using the driver UNi Xonar W10 1825 v1.81a r2 as the original of the asus, already changed slot, changed power options, nothing solves ...



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