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Trevally
Contributor I
April 18, 2019
Question

Lip sync fault - Samsung QE43Q60R QLED (2019)

The Beam has lip sync problems with the new 43’ QLED TV when audio is delivered to it in dolby. No sync error with PCM.

From a cursory reading on here it seems Samsungs generally work with Sonos (ie without sync errors).

Other than adjusting to PCM are there other settings I could adjust to retain dolby while eliminating the delay?
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    43 replies

    Mark-oc
    Trending Lyricist I
    May 25, 2019
    Did you fix this? I just got the Q90R ‘Flagship’. I often have negative lip sync and I can only add a positive delay. PCM doesn’t sound great. The lip sync varies so much I am changing constantly.
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      TrevallyAuthor
      Contributor I
      May 26, 2019
      No, my experience is the same as yours. It seems to be worse on Virgin TV than with internet VOD or streaming.
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      Mark-oc
      Trending Lyricist I
      May 26, 2019
      Have Sonos offered any suggestions or do they think it is the TV?
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      TrevallyAuthor
      Contributor I
      May 26, 2019
      Sonos - no; retailer suggested only the audio delay setting in the sonos app, which doesn’t help. Consensus seems to be that there’s latency in the audio output through hdmi-arc when using dolby, presumably due to processing, which the Sonos can’t do anything about. If the latency theory is true then I assume it can only be fixed by Samsung updating the firmware so the audio output syncs with the video. I’ve given up playing with the settings; if there’s a way to retard the video to allow the audio to catch up I’d like to know what it is.
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        Mark-oc
        Trending Lyricist I
        May 26, 2019
        Have you tried the TV speaker? I’ve just tried mine (no soundbar). The sound and picture are not quite in sync. It’s not as bad as with the soundbar but does seem to point to a TV issue. This is with Sky Q HDMI and optical connection to Playbar in Dolby 5.1.
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        TrevallyAuthor
        Contributor I
        June 19, 2019
        Hi Mark, I’m not getting any sync issues when using the TV speakers - but not a comprehensive tests as I’ve not tried it with all channels that were causing problems before (BBC1 HD was worst I think). Have you found a fix? Samsung need to update the firmware to allow voice and video modulation as the Apple TV update provides (assuming that’s the fix).
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        Mark-oc
        Trending Lyricist I
        June 19, 2019
        Hi. I raised an issue with Samsung. I would suggest you do the same as the more people raising, the more attention it might get. I also have the retailer chasing Samsung and fortunately have the offer to return or exchange the TV.

        Meanwhile, the only work around is to use PCM output instead of Dolby 5.1. Not really acceptable but at least it works!

        Thanks.
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          Firestarter999
          Firestarter999
          Lyricist I
          October 14, 2019

          Set your A/V sync on your tv to ON and not Auto.  Lip sync problems sorted beteen tv and beam and sky Q. 

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          Mark-oc
          Trending Lyricist I
          October 14, 2019

          Where is the A/V Sync setting?  I can't see it on the Sound menu. 

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          Herr_Vlad
          Avid Contributor I
          October 14, 2019

          Did you try using the optical connection via the included hdmi-to-optical adapter? Might help. You won’t loose any sound quality, although you won’t have HDMI-CEC support either. On the flipside, Beam has an IR receiver and it can “learn” your TV remote, so you can control volume that way.

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