Those are all Windows Spatial Audio solutions, Windows Sonic is the free one.
I don’t think DT does Spatial Sound (even though WWise supports it) so it may do nothing except maybe make things worse (I could be wrong, devs won’t clarify).
You need to try the other method for virtual 7.1 speakers, like many of the bundled software suites do, like Logitech.
Some even include full licenses for say DTS, so you can grab the full DTS Headphone X for Windows Spatial Audio supported games.
Some games had a built-in HRTF plugin for 3d virtual sound, and i think others even added it via mods like Skyrim. The WWise suite has support ($) for this AFAIK via the paid Auro Plugin. Quite frankly I think FS should have shelled out for this and had it as an option, it would have gone a looong way.
It’s not really my area of expertise and I don’t have a lot of info to go off, but I can figure some stuff out at least.
What I DO know works is the older other surround sound method, 7.1 virtual speakers in the old windows control panel and setting game to 5.1(7.1).
Leave Spatial Audio Off and make sure your SW is setup for the virtual 7.1 speakers in Windows old Sound control panel or your bundled headset SW.
My GSX 1000 is an external device, but shows up in Win as a 7.1 device. It also has a button (4) to switch to 2.0 or for stereo music etc. without the 7.1 virtualisation. Bonus: it creates a separate virtual communications device so your voice chat is not 3d sound virtualized, this is a very neat bonus.
For those looking for a a good and free solution, try HeSuVi for Equalizer APO.
HeSuVi download | SourceForge.net
It’s pretty easy to set-up and the defaults are fine for most people, it has
^ A decent set of cans goes a long way, trying the dynamic range settings for audio in-game may help too. Open-back should provider better sound-stage for 3d sound too.
However the default stereo sound across the board seems rather limited to me as far as positional sound goes (without HRTF), especially in the rear arc.
I’d wager most would benefit from HeSuVi and setting it to 5.1 in-game.
P.S. An interesting reply from a dev People wondering why there are so many sub-par players - #71 by FatsharkStrawHat, but it still left unanswered questions re: Windows Spatial Sound.
P.P.S. Some interesting info diffs 7.1 vs MS spatial, MS dev , Games List.