1. I get system crashes (BSODs), I get audio panel crashes, audio panel does not launch, some settings are missing or some settings do not work anymore. What can I do? (updated 4.10.2015)
Things to try:
- First make sure you have GX (Xear3D) is disabled in the audio panel.
- Try reinstalling (uninstall and install) of the audio drivers with the "Run driver cleaning before install" option selected in the UNi Xonar installer. Optionally you could do a extended driver clean (see below) before installing the drivers again.
- If you only got these issues after you've installed newer UNi Xonar drivers and the suggestions above did not work then try with older driver releases. You may have to go back to the drivers you previously had installed. If previous drivers are working please write a comment describing the situation in the main UNi Xonar page.
Extended driver cleaning guide:
- Uninstall any Xonar drivers (search for Asus Xonar and/or UNi Xonar) and restart after that.
- Download and run "UNi Xonar driver cleaner".
- (optional) Download and install Driver Sweeper or its successor, Driver Fusion. Launch it -> select ASUS Sound -> press Analyse -> press Clean -> Restart.
- Install UNi Xonar drivers.
You need to reconfigure the ASIO device output in the preferences of the audio application you are using.
3. Using UNi Xonar with C-Media Audio Center and can't set the headphones gain, switch output to front panel or change sample rate? (updated)
The easiest way is to launch the Asus Xonar Audio Center (Start->All Programs -> Uni Xonar Driver) and change it from there.
Alternatively, you can download the Standalone Apps package listed in the main UNi Xonar Page, and use the applications you want to change the settings. This is recommended so that you don't get a increase in DPC latency or other system interferences with the launch of Asus Xonar Audio Center.
There are three ways:
A. Through the drivers
Windows XP guide:
- Install the UNi Xonar driver with "Re-enable stereo upmix to 4, 5.1 and 7.1" option set in the installer.
- In Asus/Cmedia audio panel set the output to 6 or 8 channels .
Windows Vista/7/8/10 guide:
- Install the UNi Xonar driver with "Re-enable stereo upmix to 4, 5.1 and 7.1" option set in the installer.
- In Asus/Cmedia audio panel set the audio channels to 2 and analog output to 5.1 speakers. Caution: it won't work if you set audio channels to 6 and analog out to 5.1. By using these settings your Windows and other applications will output the sound from 2.0 format to 5.1 speakers and not 5.1 format to 5.1 speakers.
- In Asus/Cmedia audio panel enable "Dolby Pro Logic IIx", set the audio channels to 2 and analog output to 5.1 speakers. You can tune the "Dolby Pro Logic IIx" parameters to maximize volume on the rear and center channels. Caution: it won't work if you set audio channels to 6 and analog out to 5.1. By using this settings your Windows and other applications will output the sound from 2.0 format to 5.1 speakers and not 5.1 format to 5.1 speakers
Caution: Enabling GX in order to have a working stereo upmix in Win Vista/7/8/10 is not recommend because of the crashes and issues that arise because of GX (see Q&A 11).
B. Through Equalizer APO
- In Asus/Cmedia audio panel set the audio channels to 6 and analog output to 5.1 speakers
- Install Equalizer APO and launch it.
- Disable preconfigured filters by pressing the power button on each of them (pic).
- Add new filter->Basic Filters->Copy (…) (pic).
- Click “Edit text” button on the newly created filter and replace the text with Copy: MIX=0.5*L+0.5*R C=MIX RC=MIX SUB=MIX RL=L RR=R SL=L SR=R and press Enter. This config was taken from here.
C. Through players settings
A better way might be to enable stereo upmix on a case by case basis through your Audio/Video player settings. Some players need a dedicated plugin in order to do this (like Channel Mixer for foobar2000). Configuration should resemble the Equalizer APO config from above.
This method will not work for browsers and YouTube unless there is a way to enable the stereo upmix either through browser configuration or an addon.
In this case, the ASUS/C-Media Panel settings need to be 6 channels and 5.1 speakers or so, depending on your audio system.
5. How to save your current settings? How to manually edit the Xonar settings in the registry? (updated 02.03.2012)
5.1. Finding settings path in the registry
1) Press Start -> Run or Search field and type regedit
2) navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet in the left pane
3) Press CTRL+F and type BassBasedBLevel and click find, this will jump you to xonar registry settings path. This "folder" (0005\Settings or any other number) is where the Xonar settings are stored.
Right click on Settings "folder" and click export. Type a name and click Save.
Before importing, check your current registry path for the Audio card settings, as they might be not stored in "0005"(or any other name) like it was when you saved the registry. If this is different, you need to edit the previously exported reg file (right click->edit) , and replace the old path with the new one (example: ...005settings to ...011settings). Save the file.
Double click on the saved registry file and press "yes" when prompted. Note that you need to restart your PC or disable and enable your Xonar card in Device Manager in order for settings to apply.
TIP: By exporting and importing the Xonar registry settings, you can save your settings before uninstalling the drivers and installing a newer version. In this case, you have to import it after you've installed the driver. In order for them to apply you need to either restart your PC or disable/enable Xonar Card from Device Manager.
HunterZ: Panorama effects usually cause the sound to “wrap” around to the surround speakers, creating a larger and/or more immersive stereo stage. A lot of Dolby ProLogic II Music decoders have a similar effect when decoding in music mode.
Yes. You should usually hear a pop when you change to music with different sample rate.
- Navigate to the settings path ( see 5.1. Finding settings path in the registry paragraph)
- You have the following variables for adjusting delay LsRsDelay , CenterDelay , LbRbDelay - for side/rear , center , rear in 7.1 . If you don't have them you need to create them, Right-click on black space -> New ->Binary value.
- Double click on the variable you want to edit, and instead of 000000 type 050000.This should add a delay of 5 seconds to the channel you are editing. The settings are in hexadecimal form. Some examples: 9 ms is "09 00 00 00", 10 ms is "0a 00 00 00" , 11 ms is "0b 00 00 00", 15 ms is "0f 00 00 00" , 20 ms is "14 00 00 00"
- For new settings to apply you either need to restart, or disable and re-enable the Xonar card from Device Manager
9. What are best settings to achieve best audio quality, performance and functionality from my (Xonar) card? (updated 06.03.2014)
10. Audio in Flash player (like from videos in youtube.com) is upmixed to 5.1 although stereo upmix is disabled. Why is that? (updated 19.07.2014)
There is a user made fix but it might not work with newer flash versions and it does not seem to work on Win 8. You can find the fix here. Follow the instructions in the readme.txt file.
If you are mostly viewing clips on youtube.com, a possible workaround would be to watch the videos in HTML5 video player instead of Flash player. To do so, go to youtube html5 page and turn "HTML5 Video" on.
In most of the cases it doesn't even work and the worse part is that while having GX enabled any audio application that you use is prone to crashes or makes your whole system crash (BSOD).
ASUS/C-media emulation of EAX capabilities is disastrous and should have never been released in this state and marketed as a feature. If you want a reason to sue Asus this is it.
GX is labeled as Xear3D in C-Media Audio Panel.
If you've downloaded the drivers from the official links then the virus warning is a false positive. Possible causes are the packaging of the drivers or the presence of driver cleaner in the UNi Xonar installer which deletes the Xonar driver files from Windows folder.
While it's highly unlikely that UNi Xonar driver packages would be compromised and be infected with viruses, if you really want to be sure then you can submit the driver package for analysis to www.virustotal.com for a wider analysis.
Furthermore, UNi Xonar driver installer (again from the official links) does not contain any adware, spyware or PUP (Potentially Unwanted Program).
In such cases where your antivirus blocks the installation or the download of UNi Xonar drivers you need to either configure the antivirus to allow that action or temporary pause antivirus protection.
There is no time frame. UNi Xonar driver releases depend on one or two factors:
1. When new original audio drivers are made available (eg: when ASUS releases a new set of drivers for any of their Xonar cards or when ASUS releases a new Xonar card). As of Jan 2017, it seems that Asus/C-media are no longer interested in releasing new drivers, thus Xonar cards should be considered unsupported by card manufacturer and audio chip manufacturer.
2. When in my research for fixes or improvements I find something that can be implemented (eg: Stereo Upmix issue fix, the Rear and Center channel delays fix).
No Linux or Mac version. UNi Xonar drivers are based on Xonar original drivers for Windows.
15. I'm receiving “Can’t find any device” message and I can't change any of the Xonar card settings.
This error is generated by Asus Audio Center. Other drivers, security programs or changes made by Windows updates might prevent Asus Audio Center from working correctly. If you can't find the problem you can use C-Media Panel or XonarSwitch to change the cards settings.
Yes. You need to do the following:
- You need to keep the "installsettings.ini" file that's generated after the finish of a valid UNi Xonar driver installation with your desired installation options.
- The file needs to be in the same folder as the driver installer that we want to install silently.
- You need to add the "/silent" flag to the UNi Xonar driver setup command like this: “UNi Xonar 1823 v1.80a r3.exe” /silent
18. Occasionally, I get a loud white/static noise or screech. Why is that and is there something that can be done to prevent this?
There are at least two instances:
- It may be a issue or incompatibility between the motherboard and the Xonar audio card. Ironically, ASUS motherboards seem to be most prone to this issue. Unfortunately there isn't much it can be done. You should look into updating the motherboard BIOS to the latest version. If that does not solve the problem a possible solution would be to change the motherboard if you think the card you own is worth it.
- A Windows 10 only issue. Discussions for this case are talking place on this page. No solution has been found so far except reverting back to Windows 7 or Windows 8.1.
General recommendations: If you run into this issues and have not found a solution you should either buy a different audio card that's not powered by C-Media audio chips (so no ASUS or HTOmega), buy an external DAC or at least take some precautionary measures like controlling the volume with a amplifier while having Windows volume always set to 100%. Keep in mind that nothing is worth permanently damaging your ears.
19. Occasionally I get left or right speaker imbalance (volume drop). Why is that and is there something that can be done to prevent this?
There are two possible causes:
1. There is an issue with your sound system. To check if this is the case, when the volume drop occurs connect a different pair of headphones or different speaker system directly to the soundcard and see if you still have the issue.
2. An issue or incompatibility between the motherboard and the Xonar audio card. You should look into updating the motherboard BIOS to the latest version. If that does not solve the problem you either change the motherboard or buy a non Xonar audio card.
20. Sound output channels are switched between one another or I get noises/cracking/latency during 192kHz 4/5.1/7.1 channels playback.
Answer valid only for Xonar DX, D2X, HDAV 1.3 or HDAV 1.3 Deluxe audio cards:
If you card was manufactured before year 2009 you need to update its PLX(PCI-to-PCI-e bridge) firmware as the original firmware had some issues especially with some motherboards. To do so do the following: Go to ASUS download page, select Windows XP, go to Utilities, download "PLX firmware update Ver 1.1", extract and run it, then restart. The update utility will work on Windows 7 and probably Windows 8/8.1/10 OS versions as well.
21. I have hissing/buzzing/crackling noise coming from the speakers or headphones and/or people I talk to using the microphone complain that they hear buzzing noise coming from my end.
You could try solving this by:
- If you are using the case front panel connection then try connecting the speaker system, headphones or microphone directly to the card. If the issue is resolved and still want to use the front panel connection read this.
- Connect your PC to a grounded electric outlet.
- The problem might be from to much EMI (Electromagnetic interference):
It's a little tricky as there is no perfect solution. If you have two different Xonar cards there are two options:
- Use the Asus Xonar Audio Center or C-Media Panel to change the settings of one card and use XonarSwitch with this guide to change the settings of the other one.
- Following this guide to control a specific Xonar card, you could make two separate XonarSwitch shortcuts, one for each card. Depending on which card XonarSwitch controls at a time, you could close XonarSwitch and start XonarSwitch again for the other card.
23. How to get a subwoofer working when it's connected directly to the card as part of a 2.1 speaker configuration?
Most likely it won't work properly and there is no solution to make it work. It's been reported that using these adapters make the cards work only for a couple of seconds after booting. If you are interested in reading more about StarTech PCI-e to PCI issues with Xonar cards then check here and here.
If you are still interested in a different adapter, ASMedia 1083 PCI-e to PCI adapter might work (#1).
Check that the auxiliary power connection to the card is properly plugged in.
There is no permanent fix for this issue. The issues seems to be caused by a hardware malfunction. When it happens the issue can be remediated by either:
- Using Xonar Driver Restart application to restart the card.
- Putting the system to Sleep and resuming it afterwards. If sleep in not available in Start menu-> Shut Down options, you need to go in BIOS/UEFI and enable an option called something like Standby S3, Standby STR or Standby Suspend To RAM.
This feature requires ASUS Audio Center to be running. In addition to that, check that ASUS Audio Center has the Main tab active, as there is a bug that prevents front panel jack auto-sensing from working if Main tab is not active.