Sonos Arc lip sync issues.

Hi @electrosim2001.

Thank you for a very detailed response. I could not agree with your point enough.

I would be morethan happy to send this to our engineering team as a feature request. However, Just to set your expectation you will not be notified but what we can do is to subscribe to this thread and check our announcement from time to time for any updates or accessory release just in case we have anything that may relate to this concern since Sonos were made to serve only (one master) to which ever it is plugged into via either the optical cable or HDMI cable. This is a good point as well either to release an update for a little HDMI hub exclusive for Sonos devices as well an a mini switch on the app for the Sonos device to switch from any HDMI option input option on the Sonos app as this can be quite impossible to be done automatically if for example both the TV and a cable box feeds the same signal going through the hub,

Please let me know if you still have further questions or concerns.

Hi @kirasallypip, @Longcn @slidchapman.

Welcome to the Sonos community. Thanks for reaching out to us.

I would like to clarify that Dolby Atmos is only available to the Sonos Arc and having this feature on the Sonos Arc does not translate all video coming from the TV or from any other source to generate Dolby Atmos unles we can verify that the audio we have on the TV is encoded with Dobly Atmos. Everything still depends on how the video is coded and what signal does the TV receive and generates towards the Sonos Arc. 

However for the Lipsync issue, I would like to recommend  to submit a diagnostic and here’s how (while there is audio coming out of the arc), so we can further check what could possibly be causing this audio delay.

Please let me know how it goes.

Thanks,

Hi I have already returned the arc and gone back to the playbar with no issues.

If you do not have eArc on your TV or have lip sync problems, here is the solution.  An adapter that sits between video source and Sonos arc!  it's time for Sonos to start promoting this product, for your own sake. https://www.hdfury.com/product/4k-arcana-18gbps/

been a Sonos dealer since 2007 and I can tell you the ARC sound bar has a lot of problems. I noticed the lipsync issue with Samsung TV too and also have noticed with Samsung TV when you play music not the Arc and then trying to go back to TV it will tell you it cannot connect. What I do to fix that issue is simple turn off the TV and then change the input to TV and then put the TV back on. BTW I find it disingenuous when Sonos reps post and tell us they don’t know what we are talking about for they knew very well whats going on. BTW the sound on the ARC soundbar is not as good as the Playbar for me anyways. And why did they put the volume and pause button on the top of the ARC soundbar when most mount then really really close to the TV (sometimes even touching)

BTW we used to fix lipsnyc issues with data compression whether it was compressing or not compressing the data - however that doesn’t fix the issue on the ARC

Hi @richiemiami.

Welcome to the Sonos community and thanks for reaching out to us.

I would recommend the following steps so we can do a comparison of the data that will be received as well as we can check what is going on with the ARC.

• Play a movie on the TV and while the issue is happening on the ARC, submit a diagnostic.
• Play music on the TV and while the issue is happening on the ARC, submit a diagnostic.
• Turn off and Turn on the TV after 5-10 mins submit a diagnostic.
• Play music on the ARC through the Sonos app, submit a diagnostic.

Please take note of the confirmation number in each situation. this may give us a lot of information so we can check how the ARC behaves in each scenario.

Please let me know how it goes. We are always here to help.

Thanks,

Hello all. Seems like this is the most current chat on the audio sync issue with the ARC.  Not trying to hijack the thread, but just keep a current single documented conversation.  
 

I have a new setup with an existing Sony XBR TV and a new ARC, Sub and two Sonos One’s.  I am also getting the lip sync issues with every source I have tried- Apple TV, Xfinity boxes, and in TV apps like YouTube TV.  I first thought it was a YouTube issue until I saw it in the Xfinity Flex box, then the Apple TV.  I also have tried the optical adapter with no luck and I’ve been exclusively using the Sonos cable.  I haven’t submitted a diagnostic yet, I will do so tomorrow.  What is bad is that Sonos says if the audio lags the video, which it does, they have no solution.

And now for the worst part- I used the Sonos trade-in program at Best Buy to upgrade older Sonos pieces.  Now I’m seriously thinking I need to return this kit if I cannot find an acceptable solution.  But, then I don’t have my old products back in return.  So what is the Sonos solution for this?  If I return the ARC, et al, I then have nothing. 
 

Erik
 

HI @ekkoville.

Welcome to the Sonos community and thanks for reaching out to us. 

I would suggest going over the recommendation above so we can do multiple comparisons on the Sonos’ behavior in each situation.

Please let me know how it goes. We are always here to help.

Thanks,

I have recently purchased the Philips805 and Sonos Arc.  The TV apps work perfectly with the TV and sound bar, I am getting Atmos DD+ which is great on Netflix. 5.1 and other formats also all work perfectly whilst watching the streaming apps. Now here is where the problem starts. When watching TV via my V6 Box I get lip sync issues with all 2.1 and 5.1 TV shows/films etc. Stereo works perfectly fine and last night I surprised to see I had no issues when watching BT Ultimate, which gave me Atmos DD+.

The only way around is to connect the optical cable to the from the V6 Box to the Arc. This way fixes all the lip sync issues with 2.1 and 5.1, but I then lose all sound on the TV apps such as Netflix, Prime etc and also lose Atmos DD+ on BT Ultimate. I don't mind changing the cables in the Sonos Arc short term, but I want a long term fix.  I brought the Arc to keep things simple and clean, I love the sound but not the faff it is causing. I never experienced these problems on my previous set up.

I am having the same audio delay issues with Arc. I have an LG B8 Tv, AppleTV 4k.  all audio processing is turned off and set to bypass.  I have a noticeable delay, especially on Atmos content.  Tried everything.  It’s very difficult to tell if its the TV or the Sonos.   I previously had a Sonos Beam connected to the same TV and had no issues.