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HighDrive
Contributor II
June 28, 2016
Question

Honestly...does everyone just live with lip sync delay?

Incredibly frustrating. Trying to use Sonos PLAYBAR + SUB + 2 PLAY 1s for home theater. Have tried it on two different TVs (Samsung & Vizio) with HDMI inputted content (cable box & DVD player), also with internal apps native to each TV.

No matter what there's a millisecond delay between video lip flap and sound coming through the Sonos system. Before you ask, yes of course I've tried every possible way to adjust sound sync using both the settings within the Sonos app and also within the TV menus. I've read every Sonos forum post on it, and it's never conclusive and only offers suggestions to do what I've already tried. And believe me: I've tried it all.

Anyone? I had high hopes for Sonos because I can't run wires in my house to the particular area I need the surround speakers to be. Alas nothing's working and the only remaining to do is return the whole thing.

Disappointed! (Kevin Sorbo voice)
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    59 replies

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    RRG
    Trending Lyricist I
    February 21, 2018
    RRG follow up . Spoke to Sonos tech , A couple times , he YES , in fact they do have an audio issue with LG TV's , others ?
    They are working with me to correct this . Stay tuned .
    D to the M
    Contributor I
    February 21, 2018
    RRG follow up . Spoke to Sonos tech , A couple times , he YES , in fact they do have an audio issue with LG TV's , others ?
    They are working with me to correct this . Stay tuned .

    Would it not save so much headache just to use a switcher and take away any TV processing issues?
    RRG
    Trending Lyricist I
    February 21, 2018
    Honestly i don't know , I am not a tv electronics guy . I will say that Best Buy nor Sonos neither offered that as an option .
    They also are aware of the issue and are working on correcting it . Why should anyone have to add an extra expense to get correct audio sinc ?
      desertrat4now
      Lyricist I
      February 21, 2018
      I had the same problem on my new Vizio TV. I did some research and followed the recommendation to go into the Menus and set the Digital Audio out to PCM. That instantly fixed my lip sync problem!
      D to the M
      Contributor I
      February 21, 2018
      I would research a little bit about HDMI switching. Essentially the only thing your TV will do is output the video.

      For example using a cable box:

      Cable box HDMI going to Switcher Input. Switcher audio optical cable goes to sound bar. HDMI out from switcher goes to the TV. The TV will not be processing the sound. It's a $40 solution that's worth a shot IMO. If it doesn't work - return it.
      SonosSJM
      SonosSJM
      Lyricist II
      February 21, 2018
      The bigger the TV, the further back you sit. The speed of light is faster that the speed of sound so the light (picture image) will get to you faster than the sound. Adding any delay via the app will only make the matters worse. The solutions are to (a) sit closer, (b) mute the sound and read lips, (c) wait for the Universe to upgrade the speed of light.
      Sonos user since 2000. 16 Units total.
      RRG
      Trending Lyricist I
      February 21, 2018
      Yes switching to PMC will fix it but then you lose Dolby digital , That not a fix IMO . I believe Sonos will find a solution to correct it . Will see . Thx .
      D to the M
      Contributor I
      February 21, 2018
      The bigger the TV, the further back you sit. The speed of light is faster that the speed of sound so the light (picture image) will get to you fast than the sound. Adding any delay via the app will only make the matters worse. The solutions are to (a) sit closer, (b) mute the sound and read lips, (c) wait for the Universe to upgrade the speed of light.

      what in the wild world of sports are you talkin bout'
      SonosSJM
      SonosSJM
      Lyricist II
      February 22, 2018
      I'm talking about the picture and audio not being in sync. My wife is more sensitive to this than I am. It's most annoying when watching a news program. We have a 65" TV and sit 20 feet away from the screen (playbar, playsub, dual play:3s for rear). However, the audio is behind the image, not in front of it. There is no setting to delay the image unless you have adjustment settings in the television itself. The Sonos settings of lip sync delay only magnify the problem by adding delay. What's needed is a delay for the picture. My old 7.2 audiophile setup (pre-Sonos), had an AV receiver that had lip sync adjustments that allowed added time or subtracted time per input. That worked. Now, I just feed my wife a few drinks til the images are delayed from her eyeball to her brain and then it's in perfect sync for her. Too many drinks, and we even get dual 65" Sonys!
      Sonos user since 2000. 16 Units total.
        dpinskey
        Avid Contributor III
        March 2, 2018
        From what I gather from most posts regarding audio sync being behind the image, there just is no way to match up unless your audio is ahead of the video signal. I am wondering if anyone in the SONOS design facility might have thought about passing signal through the various SONOS devices that accept audio input from a television monitor to add an I/O pass through for video as well - most preferably HDMI - as that is where the industry standard is for consumer electronics passing imbedded audio with video. This way the video and audio can be retimed automatically internally in the device - or at least fine tuned in the app - to adjust audio sync without latency problems. Thought?
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