Hello Fella.
At first after install realtek hd advanced drivers You should next install newest hda driver from device manager.at result You will have mixed driver.my suggest 8967.1 by asus rog. At next drs ultra.drivers for this device You can find here:
mega.nz
Go to device manager than add older device and manually go to inf file in folder. Dts ultra suppoet is only software enhancer ( not physical device) needed for enable dtsxl x ultra mode in spatials of realtek audio. At last You should install uad driver for dts ultra, dts apo4 codec.installer You have here:
mega.nz
Try and make Your own opinion
Here are screens with the same patched drivers and dts x ultra supported but on 2 other version of realtek drivers: 7071 modded by wincreators
https://mega.nz/file/2foihYhB#NI0Hkw0nUnKerP9dbh4cPkEw-8n4MuOauNYIaq3U_YU and lastest uad dch mod by Alan Finotty v8996.1
https://github.com/AlanFinotty1995/AAF_DCH_RealtekModded/releases
Dts x ultra i was enabled on windows 10 Enterprise 20h1 compilation 19041.450
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