Dolby Atmos sync issue with Apple TV

FIX:

SETTINGS > VIDEO AND AUDIO > CHECK HDMI CONNECTION

I also had this issue with my Samsung TV and Soundbar.

Checked both sync/delay settings and reduced them to 0 delay but the issue persisted.

I'm not sure what "CHECK HDMI CONNECTION" does, but at the end of it, ATV mentioned that my connection is now improved. I did not change/move wires before/during/after the process.

After checking back with Netflix on ATV, all sync issues were fixed, even with Atmos and frame matching enabled.

Still the same problem, tvOS 17.5.1 & latest version of Infuse Pro.

It is all ok after turning off the match frame.

Hope Apple can fix this issue ASAP!!!

I might have a solution. Under video and audio settings on my Apple TV I had the Match Content on. Sync problems.

Turned it off. Perfect audio sync through my homepod with Dolby Atmos still on.

Turning match content off makes the lip sync issue even worse for me.

Turning Audio Mode to 16 bit seems to have helped.

Same issue here. For me the solution is to not use the appletv and run the appletv/hbo/netflix app on the tv instead. Then all is in sync and I can use Dolby Atmos!

It looks like appletv cannot deal with Dolby Atmos with some older model tv’s or is it an OS issue for Appletv?

Please Apple, fix this!

Same issue. Atv connected direct to a Denon 6500w. Differing levels of sync issue. Setup to run Atmos 7.1.4

BBC iplayer almost perfect

AppleTV movie awful with video in front of audio

Prime - video just in front of audio

Netflix - video just in front of audio

All cables a highest quality, tried changing Atv video settings - no change.

Tried Atv connected to the TV, used eARC to push audio back to the Denon. No better.

issue has to be the Atv. Atv is running the latest iOS

help

Latest pre-release version of tvOS has improved this for me a ton! I can't say for sure whether it's perfect, but it's watchable.

My TV doesn’t have e-ARC, just ARC. It seems like the switch to 16 Bit has sorted it. I’ll watch an Atmos movie tonight to be sure.

I had the same issue after my Apple TV 4K updated recently. It seems to be fixed after I went into my television audio settings and changed it from “Passthrough” to “Auto.” The auto setting left the sound very delayed, taking about 15 seconds to start playing after starting a video. Deciding this was not a good option, I changed it back ti “passthrough” and now everything is working fine.

Are people still having A/V sync issues with their ATV box? I'm going from ATV>Receiver>TV. For me the video lags behind audio in some apps, not all, and to varying amounts if I have "Match Framerate" turned on. Turning it off fixed all syncing issues, but now all the apps feed content to the TV at 60fps instead of matching 24p material correctly. Match Framerate was one of the main reasons I bought this thing, and it's the only advantage this device has over the Nvidia Shield as an ultimate home theater streaming device. What's the point if I can't even use this feature??

I have the same problem with the new ATV 2022. I found that if it doesn't play Dolby Vision, it will play Atmos. If I turn on DV, Atmos plays poorly. It's worst in the Apple TV+ app. The ATV is connected directly to the TV (Philips 65OLED936), which has a built-in soundbar. Everything works fine when streaming from the app on the TV. I bought a new HDMI cable with certification, but it doesn't affect anythin.

I am also facing audio delay issues specifically on Dolby Atmos. I had no delay when Atmos was disabled in the settings.

My setup is Apple TV -> Sony TV (eARC) -> Denon AVR.

I was able to resolve this problem by changing my setup to Apple TV -> Denon AVR -> Sony TV.

This was a pain to re-set up, but it worked for me. Also consider turning off Match Frame Rate because that causes issues with some apps (Plex comes to mind.)

I have the same problem with a Philips TV (65OLED907) with a built-in soundbar. Apple TV4K (latest version) has sync issues in all streaming apps (Apple TV+ is actually worst). I noticed a big improvement with tvOS 17.1 where a few episodes and films (Netflix and Prime) played without sync issues. This was not consistent, however, and most content and other apps are unusable with Atmos due to syncing. Native apps on the TV play Atmos without sync issues of course. Using the shortest possible and most expensive HDMI-cable (8K etc.) cable I could find.

I have an Apple TV 4K tvOS 17.1.2 Sonos Arc Soundbar LG C8 OLED with ARC

I am having the same issue with syncing on Atmos content. Switch the Apple TV to 5.1 and no issues. I have tried so many combinations of settings, switched out all HDMI cables with brand new ones, reset to factory defaults all components and nothing. LG TV native apps with Atmos work flawlessly including the Apple TV+ app. Apple TV box is a no go on Atmos content. It is killing me. Any resolution for anyone yet? I signed up for beta in hopes that a beta update on tvOS might fix this. I was considering a new TV thinking that was the issue. Does eArc help?

I changed to optical cable which has helped with sync delay with all programming. Except when Dolby Atmos is playing. I had to turn that feature off on Apple TV. Playing that is just not realistic. I am using Samsung 2022 TV with Samsung soundbar Q850