Muxing wav (which stands as PCM format) does work but if your audio system doesn’t support it there is no real point. I’ve muxed the new DTS file yesterday and it works perfectly. Use mkvtoolnix, it should work.
The audio system in my living room actually does support DTS because it always says “Dolby detected” or something like that when I play movies through Plex. I don’t know about my PC audio though. But yeah, I meant that I already tried working with mkvtoolnix earlier and I just got errors while trying to apply the audio file. That’s why I wanted to ask for help with it because I feel like all the errors are caused by my fingers + brain. 😄