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michary
Contributor I
June 9, 2020

Arc + ATV + Non Atmos Content

Hello,

 

just received the Arc and so far loving my first Sonos device :relaxed:

 

I have an Apple TV 4K, LG OLED B9 (eARC support) and now the Sonos Arc.

When I play normal DD-Content on the ATV, the Arc only outputs Stereo. (The TV also says PCM)..

 

Is there anything I can do besides force the ATV to output DD? Because it would be not so nice to switch between the audio settings if I want to watch Atmos or DD-Content.

 

Thanks

Michael

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    50 replies

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    batsabode
    Lyricist III
    June 26, 2020

    You cannot state it’s unfinished. The NVIDIA Shield can bitstream so there the Arc works exactly as expected. Most Bluray players can. Most consoles can. Every recent TV streaming app works as expected. It’s only the combination with ATV.

    The Lg tv app for Netflix and amazon prime stream atmos but it doesn’t support atmos with appletv+ yet. They say they will update it eventually so at the moment all of my atmos movies on Apple will not work unless I turn off atmos And stream it in 5.1 or just use the lg app on the tv and then I also get 5.1. 

    FrankNL
    Lyricist III
    June 26, 2020

    That sucks. I’m also stuck with my ATV and how Apple wants to do this. At least I get Atmos over DD+ via ARC to the Arc :)

      Aknedude
      Trending Lyricist I
      June 28, 2020

      Sonos stated 14 days ago (found in another Thread) that an LPCM update is on the way. Soon. They know it's a huge issue and just on them to fix. 

      Danio1137
      June 28, 2020

      Hello,

       

      just received the Arc and so far loving my first Sonos device :relaxed:

       

      I have an Apple TV 4K, LG OLED B9 (eARC support) and now the Sonos Arc.

      When I play normal DD-Content on the ATV, the Arc only outputs Stereo. (The TV also says PCM)..

       

      Is there anything I can do besides force the ATV to output DD? Because it would be not so nice to switch between the audio settings if I want to watch Atmos or DD-Content.

       

      Thanks

      Michael

      We without earc can use HDfyry new device Arcana, make it happen sign up.

      https://www.avsforum.com/forum/195-soundbars/3153792-hdfury-arcana-earc-adapter-sonos-arc-bose-700-soundbars-4.html#/topics/3153792?page=1

      justin10finity
      justin10finity
      Lyricist III
      July 1, 2020

      Arcana officially starts production!  You can pre-order here: https://hdfury.com/product/4k-arcana-18gbps/

      FYI: Arcana allows you to pass full Atmos to Sonos Arc while passthrough full video (up to 18gbps) to non-eARC TV.

        Saerdna
        Lyricist I
        July 1, 2020

        Hi all, I have the following setup:
        Sonos Arc + Sub + rear speakers (Sonos 5, 2nd gen.) and LG 65 C9 with updated firmware.
        Using ATV 4K exclusively for all content.
        Other relevant settings:  LG C9:    eARC on, digital sound out:  Passthrough.

        I just want to share my findings. Probably consistent with the results other people got in this thread.
        ATV: Auto, ATMOS enabled.
        Atmos content (Netflix etc.): Works fine. 
        Non-atmos content (marked as 5.1 in Netflix): I get surround sound but no voice! (anyone else get this?)

        ATV: Dolby Digital 5.1.   (Atmos disabled)
        Atmos content: Obviously no Atmos sound. Probably DD 5.1 but sounds fine.
        Non-atmos content: Works fine and playing as Dolby Digital 5.1 (verified in Sonos app)

         

        Is this what people are experiencing?
         


         

        ainsley002
        Renowned Enthusiast I
        July 3, 2020

        Hi all, I have the following setup:
        Sonos Arc + Sub + rear speakers (Sonos 5, 2nd gen.) and LG 65 C9 with updated firmware.
        Using ATV 4K exclusively for all content.
        Other relevant settings:  LG C9:    eARC on, digital sound out:  Passthrough.

        I just want to share my findings. Probably consistent with the results other people got in this thread.
        ATV: Auto, ATMOS enabled.
        Atmos content (Netflix etc.): Works fine. 
        Non-atmos content (marked as 5.1 in Netflix): I get surround sound but no voice! (anyone else get this?)

        ATV: Dolby Digital 5.1.   (Atmos disabled)
        Atmos content: Obviously no Atmos sound. Probably DD 5.1 but sounds fine.
        Non-atmos content: Works fine and playing as Dolby Digital 5.1 (verified in Sonos app)

         

        Is this what people are experiencing?
         


         

        Yes - exactly that. No centre channel on 5.1 (non-Atmos) content when Atmos is enabled on the ATV.

         

        I presume this will be fixed by the LPCM update on the Arc? (when it eventually arrives!)

        zztop610
        Contributor II
        July 6, 2020

        Let's hope that the Sonos staff is looking in this thread and see this huge issue. It should be an easy fix. Sonos Arc is not worth anything without this fix. It should have been working from day one. 

        Sonos can’t fix this. Apple should enable recode to Dolby Digital Plus as output or even better, bitstream the audio track.

        I was under the impression that Sonos needs to implement LPCM as a signal and it should all work. I basically don’t care who does it I just want it to work as DMD this should have been known before releasing this product and having people buying New TVs with EARC. 

        Exactly! I don’t know why some try to defend every mistake Sonos made releasing this product

        Valynox
        Trending Lyricist I
        August 29, 2020

        Hi,

        Still no new on the LPCM side from Sonos Arc?

        jgreg
        Lyricist I
        November 28, 2020

        I’m assuming this has all been fixed by the update of a couple weeks ago? Awaiting my Arc that I ordered last week...

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