DTS Connect not working on X470 Taichi Win10 1809

My build: Windows 10 1809 with all current updates, AMD all in 1 with VGA driver ver:19.10.08, Asrock X470 Taichi BIOS L3.43 with DTS Connect support, stock 2700X, 16GB RAM, RTX 2080 Ti, no oter add-on card, only audio connection is optical S/PDIF, my receiver is YAMAHA HTR-6030 that supports DTS Digital Surround.

One of the advertised features of Asrock X470 Taichi M/B is DTS Connect support, that should be able to compress 5.1 audio through digital optical S/PDIF connection.

However, no matter what I try, I can't find way to make it work. I tried both Realtek Driver 8470 that is no more on site that wasn't digitally signed, and the newest driver 8668 with Realtek Audio Console, tried uninstalling End-point in Device Manager, tried all combinations of formats, nothing works.

In Control Panel->Sound->Playback->Realtek Digital Output->Supported Formats I can test both DTS Audio & Dolby Digital and both correctly work on 5.1, and either in Control Panel->Sound->Playback->Realtek Digital Output->Advanced->Default Format or in Realtek aplication (one with old GUI) with Driver 8470 I could set DTS Interactive (5.1), but with driver 8668 I have just 2 channel options and I have to set DTS Interactive (5.1) in Realtek Audio Console. When I have turned on DTS Interactive (5.1), I can also turn on DTS Connect; with driver 8470 I could set in either in Control Panel, or in Realtek aplication, with driver 8668 I can set DTS Connect in Realtek Audio Console.

After a lot of troubleshooting, I made it work on VLC Media Player with DTS content, but common PCM 5.1 content and games with 5.1 support doesn't seem to work.

I found few articles from 2015 where it was stated, that DTS Connect was not working on Win 10 with cracked audio drivers, but I guess with supported M/B there shouldn't be a problem. There was other articles, that have offered cracked drivers, but I would like to make it work without potentionally unsecure drivers.

I hope support for DTS Connect is not made-up, since it is one of the reasons that I bought this M/B.

I am thankful for all help.

Sincerely
David

Thank you for your effort, I will look at it, seems interesting.

But I still hope someone will be able to provide me with more straight-forward solution, as it seems absurd that ordinary customer would have to look-through github repository for built-in functionality.