tvOS 16: no surround

Server: 4.76.1
tvOS App: 8.5 (3006)
Device: Apple TV 4K Gen 2 on tvOS 16 beta 2

Hello,
I use a SONOS setup with a Beam, Sub and 2 Play:1s as rear.
In general, 5.1 works great with the Apple TV app (tested with Apple TV+ content).
In Plex, I have some movies with TrueHD 7.1
Direct Stream is enabled.
When I play movies on my Apple TV in the Plex app (latest TestFlight beta), the rear speakers are not working.
I tried to change the audio settings on the Apple TV (Atmos off, forced Dolby Digital 5.1) but nothing changes.

Is this a known bug with Plex on tvOS 16?

Thank you!

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I’m not sure if any of the devs are testing on tvOS 16 but will let them know to keep an eye out for this. Thanks for report.

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For comparison -

Plex tvOS App: 8.5 (2986)
Apple TV 4K Gen 1, tvOS 16 beta 2 (20J5319h)
SONOS Beam (gen 1), Sub, Ones

No problems with surround here.

What does the Sonos app show during playback? Is the Beam receiving Dolby Digital 5.1 or Stereo PCM?

My old TV would occasionally decide to downmix all audio to stereo, and had to be rebooted to restore passthrough.

Hello,
thanks for your answer!
The Sonos App shows “Dolby Digital 5.1”, Everything rebooted before.
The Beam is connected via ethernet cable and all other speakers and the sub wirelessly.
As soon as I start playing a movie / tv show via AppleTV+ the surrounds start to work again.
So for me it seems like a Plex bug.

Hi, we recently tested 5.1 Surround on tvOS 16 beta 4 with the current Plex app (and a Sonos setup, coincidentally) and couldn’t reproduce any surround sound issues. Are you still seeing the issue on newer tvOS betas?

2 Likes

Hi @Stevenson-Price Though not the person who raised this issue but I see the same thing with a lack of anything from surround speakers.

(Samsung Soundbar and Wirless surrounds)

I just updated to the very latest tvOS beta (and latest TestFlight) and it’s still the same.
However on the latest and previous tvOS betas it’s definitely only an issue with the new player. Switching to the old player and the surrounds kick in every time.
Interestingly then switching back to the new player also gives output from the surrounds on that same movie.

Starting another movie, once again gives no rear speakers until I either just use the old player or start playback on the old player and then once again switch back to the new player.

Rinse and repeat with the same results.

@traktuner
Could you switch to the old player in the UI and see if the rears work then?

I’m seeing a similar behaviour as well. Centre and rear channel sound drops out completely when using the enhanced player on tvOS 16 with Plex. Switching to the old player resolves it in most cases.

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Yep.
Hopefully @Stevenson-Price will be back soon.

I can confirm that after switching to the legacy player the rears start to work again!
Tested with tvOS 16 beta 5 + latest Plex TestFlight build.

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Same issue. tvOS 16 public beta.

No surround for Sonos.

Every other app works.

Tried older builds. Tried different settings.

Then I deleted the beta. Re-installed it and it cured it.

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Hi again, thanks for the additional info. We’ve been digging a bit and been able to repro now, and we’re working on a fix.

6 Likes

Thanks so much. Really appreciated.

1 Like

omg. I have spent the better part of 3 hours troubleshooting this exact issue and coke to the same conclusion. I thought it was something to do with whether the file was AC3, E-AC3, TrueHD, DTS, DTS-HD, AAC, or 5.1, 7.1.

Nope. Just tvOS 16 and Plex app bug.

Glad it’s been acknowledged and being worked on.

I’m running the Plex TestFlight Beta and will eagerly await an update that will bring back my surround sound. In the mean time, I suppose I’m using Infuse!

2 Likes

Any update on this please? @Stevenson-Price

Hi, is there any update on fixing this? Issue persists in the tvOS 16 Release Candidate, it would be awesome if it were fixed before tvOS 16 is available to the masses. Thanks :slight_smile:

Hey :wave: yep we’re working on this one and testing our fix internally. I actually have a test build deployed to TestFlight we’d like to confirm works with a variety of setups before releasing widely. Anyone up for testing the build? (It’s easy to revert to regular App Store / betas after testing) If so please DM me the email address you use for TestFlight, thanks!

1 Like

Hello,
very good news. I would definitely test it and will send you a DM. Thanks!

Seems to be now fixed in build 3900.

Oops sorry forgot to update here: yes it should be fixed in 3900, if you see any more issues please let us know!