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Badgercop
Enthusiast II
April 16, 2019

LG TV + Beam - audio/lip sync issues fixed?

Many people, myself included, have has significant audio sync issues with the Beam and LG TV’s (C8 OLED in my case).

However, using the latest LG firmware recently released and recent Sonos update, the problem seems way less noticeable. I’d go as far as saying ‘fixed’.

Has the Sonos has any improvements made in this area, or is it the TV? Am I imagining it? Anyone else noticed any improvements with similar setups?
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    weavermj
    Lyricist II
    July 20, 2019

    Hi
    I'm having the same issues.
    Can you recommended to optical spiltter you are using. I'm assuming it can pass 4k through the box.
    Thanks for your help

    The only fix at the moment is to use an optical splitter and run all my devices over optical bypassing any audio processing via the HDMIs

    Hello. I’m passing HDMI from my devices (virgin media TiVo, blu ray, Xbox) into the TV. And then I run optical leads from the back of those devices and leave them in front of the tv. Then I join those leads to the optical connector on the sonos using these simple couplers:

    Ancable Fiber Optic Toslink Female to Toslink Female Coupler (Pack of 10) https://www.amazon.co.uk/dp/B01N6DO03V/ref=cm_sw_r_cp_api_i_C6UmDbS2TAAJN’’

    I also run an optical out from the tv in the same way.

    Whenever I switch input to watch a different source, I connect the optical leads together. This has the effect of letting the audio get to the sonos more quickly than the video, then I use the audio delay in the sonos settings to get the best lip sync.

    Its a bit of a faff, but makes watching more bearable.

    I am hoping LG will release a firmware update to solve the delay in passing/processing DD 5.1. It was present on my 2009 LG 37LH5000 tv, so I’m wondering if this is a hard problem to solve, or if LG don’t believe there is an issue. It’s very frustrating, as clearly other manufacturers don’t suffer from this problem.
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