Atmos disappeared from Apple TV 4K

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I have an Arc Ultra, Sub and ETA 300 set up. Until recently I was getting ATMOS with supported content via my 2017 Apple TV 4K, however I have noticed under TVOS 26.3 that titles that formerly played ATMOS content are now only Dolby Digital 5.1. My PS5 and Xbox still play content in ATMOS including movies over my Sonos setup.

I updated the Sonos system in the app and also installed the new TVOS beta, but neither has helped. Also the usual reboots. Any ideas?

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AjTrek1Answer

From what you have presented the issue is not with your ArcUltra. It’s your ATV box. Especially so as you say your Xbox and PS5 are sending Dolby Atmos.

The ArcUltra has no way of knowing what source is sending the Audio. I suggest you contact Apple Support.

Together Everyone Achieves More = T.E.A.M.

Pools-3015

Prodigy I

Did the audio settings on the Apple TV change with the latest updates? Check to make sure they are still set.

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TeufelHundAuthor

Contributor I

No change - I didn’t get the new audio options with TVOS Beta 26.4 but that may be due to using an older ATV?

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AjTrek1Answer

From what you have presented the issue is not with your ArcUltra. It’s your ATV box. Especially so as you say your Xbox and PS5 are sending Dolby Atmos.

The ArcUltra has no way of knowing what source is sending the Audio. I suggest you contact Apple Support.

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Together Everyone Achieves More = T.E.A.M.

Airgetlam

Note that the content makes a difference, too. An ‘older’ movie or TV show that wasn’t recorded in Atmos won’t show up in Atmos….Sonos plays what it is handed by the TV set.

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Bruce

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