Installing Xonar drivers (UNi) [Updated 2018/3/22]
What you need
- UNi drivers (UNi Xonar W10 1825 v1.81a r2 for W10 or UNi Xonar 1816/1823 v1.80a r3 for W7 & W8)
- XonarSwitch (latest)
Step by step installation and configuration instructions
Select "Low DPC Latency", "Run driver cleaning", "Re-enable stereo upmix" and choose your sound card from the "Default card profile" list.
[Optional, this may lower DPC latency] After you've installed the drivers, restart your computer and after that press Win+R key combination; type "msconfig" there and continue. In the programs tab disable "Windows host process (Rundll32)".
Place the XonarSwitch.exe in desired location and launch it.
Output tab Select "2 Channels" from the Source channels list, and set the Bit Depth to 24bit (or 16bit, there's not that much of a difference) and Sample Rate to 44.1Khz.
Output tab Click the Amp button and select the appropriate impedance from the list depending on your headphones (VOIP is for 0 - 32 ohm headphones, Pro-gaming for 32 - 64 ohm and Exciter for 64 - 150 ohm). I recommend using the rear 3.5mm connection because it has a lot less interference (Rear Headphones).
Mixer tab Set L and R playback volume to 45% or less (this is because over 45% might cause clipping in your audio).
Mixer tab Set the microphone (record) volume to whatever value you like and click the settings button (* icon). Disable the front mic if you're using the backport (I recommend that) and decide do you want to use mic boost.
Equalizer / FlexBass Adjust the equalizer if you need to and disable FlexBass.
AEC Disable AEC.
You can find additional options by right clicking the XonarSwitch icon which you can find in the taskbar.
Options You can backup and restore the settings of the UNi drivers and completely uninstall the drivers. Set the XonarSwitch launch automatically on startup.
Profiles You can create multiple profiles. For example if you want to use surround while watching movies, you can create a specific profile for that,which you can activate by pressing a custom key combination (eg. CTRL+ALT+1).