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Contributor I
July 17, 2018
Answered

Sonos beam lip sync issue

Setup the new beam today, no problem getting it working. Problem is with lip sync - I have a Samsung UHD 8000 series with Sky (in the UK). Beam is connected via ARC. Tried adjusting delay via the app and TV and can’t get it to sync, so really frustrating. Any ideas? Didn’t have this problem with the Playbar (connected via optical). Thanks Toby
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Ryan S
Ryan SAnswer
Retired Sonos Staff
July 18, 2018
I'd like to suggest again that you take the time to give us a call so we can look into this closer.

In the meantime, would you mind submitting a diagnostic from your Sonos system and replying back with your confirmation number while you're getting these sync issues? I'll send them up to the team to look into just in case something is being flagged there. We've seen similar issues with certain TVs not handling Dolby Digital audio quickly enough and sending it slightly delayed. If this is the case, setting to Stereo or PCM would resolve the issue, as would using an HDMI switch instead of the TV. However, this would make the CEC commands not work from Beam.

Please note what TV model you're using here, and also, how the Beam is connected to it.
Mark good posts by pressing the like button, and select the best answer on questions you've asked to help others find solutions.

71 replies

Lyricist II
June 23, 2019
Same lip sync issue here with a Sonos Beam and my TV Philips 49PUS6551, and yes, I've of course tried modifying every single audio setting and made sure that everything is up to date.

At first I guessed it could have been due to that the TV was a bit old (manufactured in 2016) - but I'm reading about other people having the same lip sync issue with the beam and 2019 TV models from various brands. So now I don't even know which new TV to purchase since the problem seems to appear regardless of which year the TV is manufactured or which brand it is.

Is there any list with TVs that are guaranteed to work with the beam without lip sync issues?

If I can't figure this out I have no choice but to return the Sonos setup which would be a real shame.
Airgetlam
June 23, 2019
I've got no troubles with Vizio, but no, there's no list of TVs that are "guaranteed".

You could take the other, easier course, and get an HDMI switch to pull the audio out before it reaches the TV, as many folks have done in many threads in this area of the forum. Certainly cheaper and less intrusive than returning a TV and buying a new one.
Bruce
Lyricist II
June 24, 2019
Thank you for your reply! The problem for me is that I want to be able to run internal TV apps as well (my TV runs Android which has allowed me to install multiple apps of my own choice) and a splitter won't solve those issues. And I don't think it's too much to ask for the TV to actually work with a premium sound system without any lip sync issues.

But I'm sad to hear that there is no list or anything like it that could point me in the right direction. Even though I'm prepared to buy a new TV to make this right, I have no clue or guidance regarding which one to go for without risking the exact same problem..

I'll reach out to Sonos support and see if they have any suggestions - otherwise I'll have to return my Sonos setup.
Airgetlam
June 24, 2019
In all honesty, I'd be bugging the manufacturer of the TV. That's where the delay is caused. This is why those who use HDMI switches with optical outputs don't have the issue. You could potentially look into an HDMI switch that can handle an ARC signal from the TV.

It's not really a Sonos issue, they can only play audio as quickly as it is passed to them.
Bruce
Lyricist II
June 24, 2019
Thanks again for the answer, I appreciate your suggestions.

However, I disagree.

I've already clearly stated that I could purchase a new TV to make it work - given that I know which TVs actually would work without audio delay issues with the beam. Since TVs manufactured ranging from 2016 to 2019 from most of the popular brands have audio delays issues with the beam, it would be very helpful and valuable for Sonos customers to understand which TVs are known to work well with Sonos products.

I believe Sonos are more likely to both have the relevant data and incentive to provide that list rather than all the TV manufacturers. Do you really think me simply asking for a list of TV devices that are known to work well with Sonos products me bugging Sonos?

Again, buying a TV switch will not solve the problem for the internal TV apps and I would much rather buy a new TV than spend another $200+ for a new TV box and another $100+ for a really good switch that can handle ARC.
Airgetlam
June 24, 2019
My suggestion of an HDMI switch which supports HDMI-ARC would indeed support the internal TV apps, by sending the audio from the TV back along the HDMI-ARC connection to the switch, which would then send it out the optical connection to the Beam.

However, it's merely a suggestion. You can choose to do whatever you want.
Bruce
Lyricist I
June 29, 2019
Today I have bought a Samsung QE55Q70RATXXU and a Beam, connected to the tv is a Sky Q 2TB, Xbox One X PS4 Pro and a Apple TV 4K, I connected the beam via optical as all 4 HDMI ports are in use and in all honestly I don’t want Alexa and we have a Echo in the kitchen and the proximity of both would probably cause chaos anyway, the Xbox PS4 Apple TV physical box and all the TVs apps such as Netflix Amazon the Apple TV app Youtube BBC etc all work perfectly with absolutely no adjustment needed however Sky Q just will not sync, I have tried adjusting the delay through the Sonos app Sky Q and the TVs internal settings, the Sonos and Sky Q settings just make it frankly worse the closest I can get to it working is through the TV delay as it goes up in 10ms instead of 20ms but this then knocks everything else out of sync, I have spend three hours trying to sort this and it’s getting frustrating, I have no clue of this is a Samsung or a Sky issue.
Lyricist I
August 10, 2019
I hope this is helpful (see bold below), because the solution to my issue of the audio being behind the video is counter-intuitive:

I was having 2 issues using my new Beam (Vizio P65-F1, XboxOne S, AppleTV 4K, Shield TV, DirecTV Genie Mini):
1) Beam does not show up in CEC list when other devices are connected (this is still a problem, so I went with the Optical adapter.
2) DirecTV audio was trailing the video via HDMI (when it worked), and via Optical, so I bypassed my TV and went straight from the DirecTV Genie Mini to the Beam, and everything was in sync. So, messing with different settings, I realized "Game Low Latency" was turned on. I turned it off, and the sync problems were gone. See why I say counter-intuitive?

Anyway, I hope this helps others... now if I could get the CEC to function properly... I think it is the Vizio and not the Beam, though. All other devices have CEC disabled, and on the Vizio, I have CEC set to ARC Only.
Airgetlam
August 10, 2019
Would that setting mean that all functionality of CEC was turned off except ARC? Have you tried flipping that setting the other way?
Bruce
Lyricist I
August 10, 2019
@Airgetlam, it means CEC only on the ARC enabled input (HDMI-1). I've tried both ARC Only as well as Enabled, with the same results.