Xbox Dolby Atmos height channel extending

No, it's not the dolby app. It's the latest skip ahead build that fixed the problem. Anyway dolby laboratories said that the problem was only cosmetic because it was coding real atmos even without displaying that on the receiver. My problem was
different because i needed to have the speaker Virtualization (i don't have speakers on the ceiling). Without the receiver reading Atmos on the display i can't enable speaker Virtualization. Now it's fixed. Sorry for my english.

Interesting, this may not be a true fix after all. The problem occurs with real atmos content on actual height speakers without virtualization. Currently, playing the atmos demo content in the Dolby app there is zero sound from the height channel, flip on
the virtualization in app and there is some virtualized height but it’s not true Atmos height. Odd, because that behaviour shouldnt happen at all. Dolby should know i have real heights and simply select the real height encoding / track. In either case, Atmos
doesnt display in the AVR front display (just shows pcm multi) so theres no way to know what the receiver is actually doing.

If the issue is “cosmetic” it could simply mean the receiver doesnt know the signal is true Atmos and does the safe thing by just playing sounds on the “bed” speakers instead of making the terrible mistake of playing any random sound on the heights. If this
is true, it would cancel the argument that Dolby is saying it’s merely “cosmetic” and I think it would make them look a bit dishonest here.

I wonder if anyone in the Alpha program can confirm this on actual Atmos height speakers with Virtualization disabled (to elimmate as many variables as possible) receiver

Atmos is mostly a rebranding of Dolby digital when it comes to game consoles. Unless you have an actual Atmos setup, with height channels and such (NOT A SOuNDBAR), it doesnt make a difference.

PCM is simoly uncompressed, or decompressed audio

There is some kind of bug that deregisters the codec on the system level, verify the game supports it, and Then rerun the setup app

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.

I have the same problem on Xbox X and XBox One. I’m using the Denon AVR-X 2700H 7.2 channel Dolby Atmos receiver with the XBox X, and the Yamaha RXV-6A 7.2 channel Dolby Atmos receiver with the Xbox One. Both receivers were working normally outputting Atmos on Netflix until November 2022. Disney+ and Amazon Prime play Atmos content on both devices without issue, hence indicating that the problem is not with the 4K TV and 4K projector, nor receivers.

This is Xbox One specific, and relates to how Dolby Atmos capabilities via Home Cinema amps. They have been compromised by the fact that the Dolby Atmos app version has not kept up with the firmware of numerous current amps from multiple brands.

Since August, it changed from outputting Atmos signals as "Atmos" to to generic "multi Ch in".

Like many others, I mailed Denon, and it is an issue relating to the MAT container embedded in the Dolby Atmos app. We collectively need a definitive answer on when Microsoft and/or Dolby intends to upgrade to 1.6?

The full quite of the Denon explanation is below:

"Dolby Atmos version is changed from “Dolby Harmony 1.3” to “Dolby Home Audio 1.6” via U21 Update. The Dolby Home Audio 1.6 includes the “Dolby MAT signaling” feature that detecting the channel based PCM signal contained into the Dolby MAT Container.
And, major player which contains the PCM signal into Dolby MAT container is only XBOX One S and XBOX One X, currently. With new Dolby Atmos version 1.6, specific processing of source (XBOX) is needed. This is now the problem: Xbox did not implement this processing
yet:"