Sonos 12.0.5 Update: Delivers Dolby Atmos to Arc with AppleTV

I really got excited when I saw your post, but unfortunately I am not receiving any sound from ATV when Atmos is enabled.  I am not sure this will be the fix everyone has been waiting for.

No, it’s not working for me either.☹️

Nope.

Not enough information here to know exactly what is being talked about. What’s the method of connection, HDMI ARC or eARC? What application on the Apple TV are you using? Are we talking Dolby Digital Plus or MAT?

More details before people are wildly disappointed would be helpful.

LG Nano91

eARC setting to Passthrough

Apple TV 4K trying through Netflix

Also have tried Apple TV+

Here’s the info:

Movie: The King of Staten Island

TV: 2019 LG OLED C9 65 Inch

Connection to Arc: HDMI ARC 

Audio: eARC turned On

Digital: Passthrough 

See screen shots below for other information:

What are you playing the movie on? 

I’d be terribly surprised if Sonos were to make such a substantial change in a dot release, much less with the standard update line (bug fixes), and not trumpet the change. 

What I’m suspecting is that you’ve just figured out how to get Dolby Digital Plus through the system, and not MAT, since your connection is only HDMI ARC and not eARC. Doesn’t matter what the setting is, if the connection itself isn’t eARC, you won’t get MAT. 

I’m on gen4 HD Apple TV, not the 4K model so apols if I’m not seeing another problem here but wouldn’t leaving the setting on the ATV to auto give ATMOS out of it when it’s an ATMOS encoded source? I have had scenarios where I’ve had to force 5.1 (non-ARC TV with an HDMI splitter and a BEAM) but under normal circumstances, I’d leave it on auto. 
 

apols if I’ve missed your point. 

@jimbo_hippo 

I’m using ATV 4K

The ATV screen shot you see is the next screen after Audio Format: Auto, Atmos Available >

You still haven’t answered my question. I’m trying to determine if you’re just getting Dolby Digital Plus, or MAT.