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rubeo
Avid Contributor III
May 6, 2020
Answered

Multichannel PCM on Arc

Are you really not supporting multichannel PCM on the newly announced Arc?

Why? It’s not a licensing issue this time.

It seems like there is always something missing with your home theater products.

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    Ditte
    DitteAnswer
    November 10, 2020

    Hi all,

    We hear you. With a software update today, Arc now supports multi-channel LPCM, bringing new immersive sound experiences for gaming, Blu-ray discs, and more. To get support for multi-channel LPCM on Arc, download the latest Sonos S2 update from the app store and then update your system in the Sonos S2 app. After updating the app, go to Settings > System > System Updates > Check for Updates.

    All the best,

    Ditte

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    squirrito
    Contributor I
    June 4, 2020

    Thanks for sharing all of your feedback everyone. We will be adding Multi-Channel LPCM support to Arc as part of a future software update. We don’t have exact timing to share at this point and will update this thread when we do.

    Does this mean the Arc will support surround sound for PC gaming too? 

    coreyatad
    Lyricist I
    June 4, 2020

    Thanks for sharing all of your feedback everyone. We will be adding Multi-Channel LPCM support to Arc as part of a future software update. We don’t have exact timing to share at this point and will update this thread when we do.

    This is excellent news. Which, using an HDMI splitter, would allow me to get DTS sound from my UB820 UHD Blu-ray player while watching on my LG E6 OLED, while also getting Atmos sound from the player and other set top boxes like my Apple TV. So long as I keep my TV, which doesn’t support Atmos passthrough or eARC it won’t be a perfect setup, but it would make me seriously consider selling my Playbar and making the upgrade to the Arc.

    I do still wish Sonos would simply make the deal to get DTS going so I don’t have to consider the upgrade until I also upgrade my TV, but at this point I’ll take what I can get.

    Lalligator
    Lyricist III
    June 5, 2020

    Thanks for sharing all of your feedback everyone. We will be adding Multi-Channel LPCM support to Arc as part of a future software update. We don’t have exact timing to share at this point and will update this thread when we do.

    This is excellent news. Which, using an HDMI splitter, would allow me to get DTS sound from my UB820 UHD Blu-ray player while watching on my LG E6 OLED, while also getting Atmos sound from the player and other set top boxes like my Apple TV. So long as I keep my TV, which doesn’t support Atmos passthrough or eARC it won’t be a perfect setup, but it would make me seriously consider selling my Playbar and making the upgrade to the Arc.

    I do still wish Sonos would simply make the deal to get DTS going so I don’t have to consider the upgrade until I also upgrade my TV, but at this point I’ll take what I can get.

    DTS limitations you can overcome with the unpack to lpcm feature every player (that I am aware of) has. The lack of DTS is a cosmetic issue, that lack of lpcm would have been a critical functional limitation.

    shnuggleberry
    Contributor I
    June 6, 2020

    Thanks for sharing all of your feedback everyone. We will be adding Multi-Channel LPCM support to Arc as part of a future software update. We don’t have exact timing to share at this point and will update this thread when we do.

    This is some bloody excellent news! That was a concern for at least a decent chunk of my non-streamed content.

     

    Thanks, Ryan. Although you’ve said you don’t have exact timing - what we talking speculation-wise… weeks, months, years?

    mudstuff
    Lyricist III
    June 9, 2020

    Thanks for sharing all of your feedback everyone. We will be adding Multi-Channel LPCM support to Arc as part of a future software update. We don’t have exact timing to share at this point and will update this thread when we do.

    Soon I hope! Beam owner here with a new LG C9 and keen to upgrade to the Arc but not without LPCM. I play a lot of movies through my pc which will send regular Dolby and downmix DTS to PCM which sounds OK on the Beam (and 2 Sonos One's) but now the Arc and eARC mean high quality, uncompressed sound, that's what I want, not just Atmos support. 

    Ryan S
    Ryan S
    Retired Sonos Staff
    June 9, 2020

    Thanks for sharing all of your feedback everyone. We will be adding Multi-Channel LPCM support to Arc as part of a future software update. We don’t have exact timing to share at this point and will update this thread when we do.

    This is some bloody excellent news! That was a concern for at least a decent chunk of my non-streamed content.

     

    Thanks, Ryan. Although you’ve said you don’t have exact timing - what we talking speculation-wise… weeks, months, years?

    The team has a lot of work to do, and this isn’t the only thing on their list. After coding, it has to go through testing and all of the other release steps, so it’ll take some time. But we’ll let you know if we have a timeline that we can share. 

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      Bjarne1800
      Lyricist III
      June 12, 2020

      “The issue with Apple TV content outputting as Stereo appears to be due to the newest LG C9 firmware for LPCM. I’d advise not upgrading to 04.80.03 if your main media device is the Apple TV until Sonos patch in LPCM for the Arc.” :(

      https://www.reddit.com/r/sonos/comments/h08f9o/testing_arc_with_lg_c9/

      mudstuff
      Lyricist III
      June 12, 2020

      I thought that was normal at the moment as the Arc doesn't currently support multichannel pcm? 

      Ken_Griffiths
      Ken_Griffiths
      June 12, 2020

      The LG C9 update is to address an AirPlay issue .. the default HDMI input format on that model of TV is ‘bitstream’. The firmware update is not going to change what is available with the firmware version v4.71.25 as far as I can ascertain?

      Bjarne1800
      Lyricist III
      June 12, 2020

      - 04.80.03 :

      “The device codec capability configuration (EDID) for the LPCM codec changed from 2 channels to 8 channels, so the 2019 models can Pass-Trough multi-channel PCM audio via eARC”

      • OFFICIAL CHANGE LOG: Apple AirPlay function improvement - (the rest of changes mentioned below are UNOFFICIAL, extracted from the firmware itself)

      • WebOS version updated to v4.8.0-52203

      • The device codec capability configuration for the EAC3 codec changed from 6 channels to 8 channels.

      • The list of CA certificates was updated.

      • Media server 8K video playback support added.

      • The max size of the saved EPG data was increased (size of the volume increased by 10MB).

      • Airplay application was added to the list of apps that are kept alive.

      • Built-In App-Updates:

      WebOS Browser App (Chromium) updated (internal version didn't change).

      LG Advertisement App updated.

      • Firmware updates of the following modules:

      WIFI

      Audio DSP

      HDMI 2.1

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