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Santi31415
Contributor I
June 13, 2020
Question

ARC lip sync

  • June 13, 2020
  • 25 replies
  • 3668 views

I have PHILIPS 65OLED804/12 65" Smart 4K Ultra HD HDR OLED and just got the ARC. Connected to HDMI ARC and it works great however there is a slight delay - sound is delayed. Every option is to delay it further. Any help much appreciated. 
 

only way around it is to change the audio to stereo on TV ….

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      PSD 58
      Trending Lyricist I
      August 29, 2020

      Hi, when I made the change I picked up a better sound, makes sense as I think the auto setting only goes between PCM or pass through anyway.

      But also contacted retailer I bought TV & Soundbar off and they said there would be no issues as I have a eArc HDMI connection. 

      They did say I could prove that by finding a dolby atmos broadcast on Netflix- which I have not done yet.

      Mo_74
      Lyricist II
      September 5, 2020

      Lip sync issues on the Samsung The Frame 2020 as well. I tried all the settings, but nothing works. Maybe it would be better if I could enable eARc on the tv, but apparently there are issues with Samsung tv’s and eArc… Only way to get any sound at all is disabling eArc.

      Grim13
      Lyricist I
      October 10, 2020

      Had lip synch issues with our LG 49SM8200. Having tried a number of options, I went into Sound/HDMI Input Audio Format and selected Bitstream instead of PCM. 

      Not sure if there are similar settings on other TVs, but might be worth looking for. I started off looking at lipsync settings and it made no difference at all. 

      Changing the HDMI Input gave instant success. 

       

      matt79
      Contributor I
      October 10, 2020

      I _think_ I might have done something that at least helps on my Samsung Q60t… this was especially bad on HD channels

      I needed to go into the “expert” sound settings > “digital output format” was set to “pass through”. My limited understanding is that this stops the TV from adding it’s own processing and lets the Arc do it’s own business

      BUT… the confusing thing was this option was greyed out. So I changed the input setting on the TV to the Sonos input (like when you set it between the apps and cable), then I went back into the sound settings and now it’s not greyed out. Since then, no problems with lipsync on HD channels

       

      Hope this helps someone!

      Mr_Jim
      Lyricist I
      November 8, 2020

      Had similar problems with lip synch with the Sonos Arc connected via eArc to a Samsung QE55Q90T, along with a Virgin media V6 box. I have another older Samsung LED TV, also linked to a Virgin media V6 box, when I connected the Soundbar to that there was no lip synch issues. 

      Tried various options covered in this thread, also some suggested by the Sonos helpline to get the Soundbar working with the new TV, none worked and was close to returning the Soundbar.

      Looking at my new TV sound menu settings, under Expert settings saw for “Digital Output Audio for...” you have the option of Auto, PCM or Pass-through. Auto was the default setting and made sense, but when I changed the setting to Pass-through my lip synch issues disappeared.

      Absolutely worked.  Thank you so much.

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