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Minhlong
Enthusiast I
November 22, 2021

sonos arc+ lg c1 arc/earc issues

Hi

Since i bought my LG OLED c1, impossible for me to get sonos arc work properly when i open the TV ( i have to revert to internal speakers then select hdmi arc to have the sound go back)

But the worse is that i couldn't have earc: when i toggle earc in the menu it reverts automatically to internal TV speakers

I'm using a ultra Hugh speed hdmi câble certifiée between the two devices, sonos arc and LG c1 up to date, i've tried all the settings possible on the TV ( passtrough, auto, bitstream, simplink, hdmi deep color etc)

Is it sonos related?

 

 

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    13 replies

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    GuitarSuperstar
    Lead Maestro
    November 24, 2021

     

    It seems I'm getting Atmos OK, just not uncompressed. 

    FYI… you are only going to get lossless Dolby Atmos via Dolby TrueHD from a Blu-ray or UHD disc or from an external media device that supports Dolby TrueHD like an Nvidia Shield.

    "Receive with simplicity everything that happens to you." - Rashi
    RobDee
    Lyricist II
    November 24, 2021

     

    It seems I'm getting Atmos OK, just not uncompressed. 

    FYI… you are only going to get lossless Dolby Atmos via Dolby TrueHD from a Blu-ray or UHD disc or from an external media device that supports Dolby TrueHD like an Nvidia Shield.

    That makes sense, thank you! 

    I shouldn't really bother pursuing this then until I test it with those formats. 

     

    Thanks so much. 

    sinbin
    Trending Lyricist I
    January 26, 2022

    Redo the TV Setup process in the Sonos app:

    Disconnect everything from your TV and unplug the TV and Arc from power for a couple of minutes. Plug the TV and Arc back into power but keep everything else disconnected. Be sure Simplink (CEC) is enabled on the TV. Run the TV Setup process in the Sonos app and connect the Arc to the TV when the app instructs you to using the HDMI cable that came with the Arc. When the Arc has been successfully connected, connect your other devices to your TV.


    Set your TV settings to this:

    HDMI Input Audio Format: Bitstream

    Digital Sound Output: Auto

    eARC support: On

    Had the same issue..Thanks for advise! It worked flawlessly!

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