Suggested alternative audio switch from Dolby Atmos

Thanks for that suggestion. It seems to still only offer up Multichannel out, no Atmos yet. I switched HDMI Audio to Stereo Compressed, then in Video Fidelity set Overrised to HDMI, then set resolution to 1080p and refresh to 60Hz, and made sure colour
depth was left at 24-bits as per the suggestion above. Switched the HDMI Audio back to Bitstream and the format back to Dolby Atmos for home theatre, but still no luck on outputting an Atmos signal.

If the game does not support Dolby Atmos, then the audio is normal stereo. Microsoft are working on updating Dolby Atmos, where if the game does not support Dolby, the audio will be converted to simulate Dolby Atmos.

Dis you set your audio settings to dolby atmos

"In the General settings, I am unable to switch the headset audio to the Dolby Atmos for Headphones." -As I stated here in the initial question, I am unable to select that setting. I get an error message, redirecting me
to the Dolby Access app.

Hello,

I have almost the same issue. I've bought Dolby Atmos for Headphones from Microsoft Store, connect my headset to controller and set audio output to Dolby Atmos in my Audio Settings page. But sometimes it is roll back to Windows Sonic! I've launch Dolby
Access app, check that in settings page selected Dolby Atmos For Headphones, close this app and get back to Audio Settings, change Windows Sonic to Dobly Atmos.

I also re-installed the dolby acces app. Demo content in the app itself plays sound from my height speakers and the rest of my speakers. I only get this problem when playing games, where only the height speakers are not playing any sound at all.

It seems that the console and your audio system is properly configured for Dolby Atmos, since the Atmos Demo works.

Also try to download the free "Insects" demo from Microsoft, which allows you to switch between Dolby Atmos and "regular" surround sound.

Check if Atmos works in that demo, as the Atmos Demos in the app are usually videos with a fixed, pre-rendered audio track.

Also, which games are you trying exactly? Do the games really support Dolby Atmos themselves? Because the Xbox One S will not "upscale" regular surround sound from non-Atmos games to have height information.