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AjTrek1
AjTrek1
August 25, 2020

Sonos 12.0.5 Update: Delivers Dolby Atmos to Arc with AppleTV

Just updated to 12.0.5.  Tested Dolby Atmos setting in Apple TV. Arc shows Dolby Atmos.

Way to go Sonos!!! 

Hope this works for Xbox...maybe someone can test/report back

Cheers!

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44 replies

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oriboaz
Prodigy I
August 26, 2020

Would someone be able to explain to me why the temporary fix would not be as simple as turning off eARC, and setting the TV to auto.  In reading these threads, and trying to process with my limited knowledge, it seems that with the above settings, ATV would then downgrade to DD+ and everything should work fine.  

I have tried this and still do not receive any sound.  I apologize if this has already been discussed, but I am still trying to wrap my head around how some with LG tv’s are getting sound and other are not.  I am sure it must have to do with different models and firmware, but someone much smarter than I am is going to explain it better than I am.

It depends on your TV. Sony, for example, “insists” on telling ATV it can accept LPCM, regardless of audio output mode. I believe the sane is true for LG as of recent firmware versions.

 

Moreover, I should note that Apple say that they only support Atmos output using LPCM Mat: “Apple TV 4K uses a high bandwidth form of Dolby Atmos that doesn’t work over ARC connections.” (source)

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khaz22
Avid Contributor III
August 27, 2020

That makes sense.  I was looking at the Apple website and saw that ATV outputs DD+, which led me to believe if eARC was disabled, the format would be pushed out in less than the MAT format.  Thanks for your help.

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mpatel181
Trending Lyricist I
August 27, 2020

I’ve never been able to get DD+ out of Sonos Arc via ATV4K.  I am however able to get it via native Netflix app from my TV.  I have a 2019 Q7 Samsung 85” w/ ARC which does passthrough DD+ for native apps.  I can’t wait to get my hands on the ARCANA by HDFury.

 

 

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    khaz22
    Avid Contributor III
    September 2, 2020

    I just received an update for our LG Nano91, and I am now able to receive Atmos through the ATV.  I assume it is DD+, but the app is showing Atmos on both the Rooms screen, as well as in the “About my System”.  It looks like we are finally able watch everything through one source!

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    jthomas009
    September 2, 2020

    I just received an update for our LG Nano91, and I am now able to receive Atmos through the ATV.  I assume it is DD+, but the app is showing Atmos on both the Rooms screen, as well as in the “About my System”.  It looks like we are finally able watch everything through one source!

     

    Are you talking about the Apple TV+ app built into LG TV or the Apple TV 4K?

    No change for me with Apple TV 4K. 

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    khaz22
    Avid Contributor III
    September 2, 2020

    I am referring to my Apple TV 4K.  I have always been able to use the LG apps, but this was new.

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    jthomas009
    September 2, 2020

    ok thanks.  I am glad for you :-).  I have an LG 75 Nano (2020) and it still doesn’t work for me unfortunately.  

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    khaz22
    Avid Contributor III
    September 2, 2020

    that is the TV I have, and the update came in last night.  Have you looked for a new update?  I had to turn the tv off and back on for the update to take affect. The firmware is 03.10.60

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    jthomas009
    September 2, 2020

    oh wow. Thanks.   I see the update for your TV.  I have a LG 75Nano906  and so our updates are just a little bit off time wise.  My model gets the same updates, but it seems to always comes a few days or weeks later than yours.   It was the same when LG rolled out the AMD Sync, in that we got it a few days/weeks later.  It was the same update, so I am really hopeful that LG will be rolling out the update you got to my model in the next few days as I don’t like the internal apps and prefer my Apple TV 4k. 

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    Alberta Beagle
    Prominent Collaborator I
    September 3, 2020

    Watching Greyhound on my Apple TV 4K. 2020 Samsung Q80T eArc set to Auto and Atmos enabled. Here is what S2 is telling me for audio output on my Sonos Arc. 
     

     

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    Beagle
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