Apple TV 4K, Sonos Arc and Dolby Atmos

Exact same situation here. Been waiting fro Homepods to support Atmos but that seems like a long way off and the Sonos Arc came on the scene, so i decided to bite. I recently bought the LG65NANO86TNA specifically to cater for the Apple 4K tv's Atmos capabilities so i was super excited to get it all setup.

But, as you point out, non-Atmos stuff plays fine but as soon as I play an Atmos movie there is no sound.

I disconnected everything and the second time round the Sonos S2 app seemed to offer some further options to connect to the tv (not just adding the device or setting up the surround sound) and seemed to recognise and configure to the LG tv and I thought, "Aha, this was the missing step!"

But no, same 'no sound' issue.

Whilst I can say for a fact that the sound from the Sonos Arc is incredible and detailed I have not been able to get ANY Atmos audio from either the ATV or the ATV app within the LG tv or any of the streaming apps.

batsabode -

You reference an update to the Sonos software. Is that confirmed?

And just to confirm - currently, regardless of which new LG model you go with, are you unable to pass through atmos from an apple 4k (I'm looking to purchase the LG GX OLED)? It all needs to be through the LG apple tv app?

Also - how does that app compare to the actual apple 4ktv console?

I have sony 40 inches full hd 1080p tv. With hdmi ARC. And the Sony soundbar with dolby atmos. Will I get atmos if I connect apple tv 4k with directly into soundbar's hdmi in with an hdmi 2.1 complaint cable ( 48 gbps belkin ultra hdmi cable recommended with apple tv 4k) and then *hdmi out* of sound bar to the tv with another hdmi cable . Its not a 4k tv. So if this is the mode of connection, do I still get atmos sound? Obviously can't get 4k resolution.

Updated to:

• Apple tvOS 13.4.8
• Sonos 12.0.3
• LG 03.10.25 (TV model still 65NANO91ANA)

no change, still no atmos with AppleTV 4K connected to Sonos Arc via eArc trying all the different possible passthrough settings.

I am having this game issue with my nano90 55 inch with an arc . I don't get audio on Atmos titles unless I turn off Atmos on apple Tv4k. anyone know if this is an Apple TV issue that hopefully apple may address in their next update.

Both my sound bar (Samsung Q950T) and TV (LG GX Oled) have eARC port, where it is connected via HDMI 2.1 cable.

ATV 4K is connected to TV, Dolby Vision works on TV, but the sound bar is not getting Dolby Atmos. TV was configured to passthrough audio signal from TV to sound bar via HDMI.

eARC supposed to support high bandwidth, but in this case it is still not working. So is this an issue with ATV 4K??

Hi Everyone - I'm hoping the group can help out.

I've had issues with choppy sound intermittently (1 out every 5 uses or so) coming through my Apple TV4K. I thought it might be the HDMI cord/port, but I switched the port and cord and it was still occurring.

I have a new LG GX with an earc connection that I run to a Sonos Arc. Typically everything works great and I get Dolby Atmos, but every so often, the sound is choppy and breaks up. I usually need to either reset the AppleTV or unplug it.

Has anyone else had a similar issue? Any fixes?

Thanks,

Adam

First and most importantly - thank you for the very quick response @Terry.

Good to know I'm not the only one having this issue. Hopefully, Apple sees this and makes some kind of software update/fix.

Regarding Apple TV on the LG, any reason you'd use that versus the set-top? Are there benefits or cons to either way? Truthfully, I've just continued to use the set-top out of habit, and haven't really utilized the TV app.

Thanks

Of course I have triple checked everything I think it depends on the lg tv you have and the software etc version. I think the oled ones seem to be ok but even the newest nano ones don’t. I am waiting for Sonos to update their arc to accept the signal being sent out by aTv

But this brings a new problem. I noted after watching Dolby Atmos content on Netflix @ ATV4K, when I play Music / Tidal on ATV4K the sound is choppy. I need to power off both ATV4K and TV to get rid of the issue.

Omfg thank you I have been trying to get this to work for months now and changed it to auto and it works I had tried Auto in the past but left it on pass through when I tested it after the last update of lg software and Sonos updat. Now it’s working wow finally thank you again. I know I just have to get plex or fuse to work with it from aTv

Hello,

How exactly is your Apple TV set up?

Example:

Apple TV <-> HDMI <-> TV <-> Optical Audio <-> Sound Receiver

Earth = EARC

I know that question was t for me but here is my cc set up the Sonos arc is connected to the EARC on the tv and my ATV Is connected to a regular arc hdmi 2.1 still no atmos