Sonos beam lip sync issue

Hi guys, I’m having exactly the same issue. I have the beam connected to my Samsung UE40NU7120 running the latest software, with the Beam connected via HDMI-ARC. My two input devices are sky Q and Apple TV 4K, also running the latest software versions.

I’ve currently got my TV settings to:

HDMI Input Audio Format = Bitstream
Digital Output Audio Format = Dolby Digital.

Note, if I change the output format to PCM the sound quality drops to a level where there’s no point having a sound bar, and if I set it to Dolby Digital+ I get no sound at all.

I’ve tried all of the various audio delay options but the reality is that the audio needs to be advanced and not delayed. I need the picture to be delayed but have no option to do this.

I don’t have the sync issue when I use the tv speakers. I have the same challenge whether using Apple TV or Sky.

Help please!

Hi guys, I’m having exactly the same issue. I have the beam connected to my Samsung UE40NU7120 running the latest software, with the Beam connected via HDMI-ARC. My two input devices are sky Q and Apple TV 4K, also running the latest software versions.

I’ve currently got my TV settings to:

HDMI Input Audio Format = Bitstream
Digital Output Audio Format = Dolby Digital.

Note, if I change the output format to PCM the sound quality drops to a level where there’s no point having a sound bar, and if I set it to Dolby Digital+ I get no sound at all.

I’ve tried all of the various audio delay options but the reality is that the audio needs to be advanced and not delayed. I need the picture to be delayed but have no option to do this.

I don’t have the sync issue when I use the tv speakers. I have the same challenge whether using Apple TV or Sky.

Help please!
Obviously you have Ryan’s answer above, but there is one further thing to perhaps try... just switch the Beam connection over to the TV optical port and see if that port is faster at handling the DD Signal. You will lose the few voice commands, but it’s quite possible it may solve your lip-sync issues.

Hello everyone ...(Lip Sync fixed? So far so good) I’m new to SONOS... just got my Sonos Play Bar and 2 Play 1s yesterday and the Lip Sync issue was driving me insane, just a few milliseconds off with the video being slightly ahead of the sound.....I’ve read many post and in one post I feel was overlooked it was suggested the sound be completely turned down with the TV remote and then be turned up with the SONOS APP...this has so far FIXED the problem for me both for watching television cable channels as well as a movie played from my Apple TV I could barely watch last night because of the lip sync issue.....I hope this helps

Pleased you’ve found a resolution Alex. I’ve just tried it and it doesn’t work for me unfortunately.

Also, I bought a toslink cable to test the connection via optical... but unfortunately I binned the Sonos optical adaptor that came with the Beam seeing as I was (foolishly it seems) expecting it work with hdmi-ARC right out of the box. Does anyone know the best way of getting hold of one? I’m hoping Sonos help me out here given the challenge I have with their device...

Thanks

Alastair

Although this says answered, it is not resolved for most users. I have an LG OLED55C8PUA 55-Inch 4K. It works with other sound bars. Both ARC and the optical have delay. I have ensure that I am using dolby. Hopefully a fix to speed the audio output can be made.

Although this says answered, it is not resolved for most users. I have an LG OLED55C8PUA 55-Inch 4K. It works with other sound bars. Both ARC and the optical have delay. I have ensure that I am using dolby. Hopefully a fix to speed the audio output can be made.

Agreed - my problem has not been solved either. The most frustrating thing is that I replaced a standard Samsung soundbar with the Beam, at 4x the price and I now have a system with superb sound but it's unwatchable because it's out of sync!

GOOD NEWS (for once) regarding lip sync! I have now spent days trying to get Dolby 5.1 sound to work without lip sync problems from Apple TV 4 via HDMI to my new Philips 55PUS8303, and through ARC to Sonos Beam (with Sub and to Play:1 as rear speakers). It works fine when I set Apple TV to send stereo sound, but I want surround! However, I just realized that the Apple TV can send audio over Airplay in stead, and the Beam is now a valid Airplay 2 speaker. And it seems to work; I can’t notice any lip sync problems now!! Hoping this will be stable and that I can finally rent a movie and enjoy full 5.1.

On my TV box though, I still need to use stereo to avoid quite massive delay in the sound. But I guess I can get by with watching the news and weather forecast in stereo...

I just realized that the Apple TV can send audio over Airplay in stead, and the Beam is now a valid Airplay 2 speaker. And it seems to work; I can’t notice any lip sync problems now!! Hoping this will be stable and that I can finally rent a movie and enjoy full 5.1.

Sorry to burst your bubble, but airplay 2 is stereo only. So, you are not getting full dolby 5.1 this way.
To get dolby 5.1 you must use either hdmi arc or optical.

(Before getting the beam, I tried to use airplay 2 with my two sonos ones + beam. The low frequency effects were great. However, there was noticeable lag between the tv and sound. Personally, I find lip sync to be much better when using HDMI ARC.)

I'm having the same issues with the Picture being ahead of the Sound. My setup is the Beam connected via HDMI to a Samsung UE40NU7120 which in turn is connected to Sky Q and an Xbox one. The problems come when you have Dolby outputting to the TV then the Beam. I've been online with technicians at Sonos and Samsung to no avail. The only workaround is connect the SkyQ directly to the Beam via the optical cable. Not as convenient as the ARC system should be. A software update from either Sonos or Samsung would be greatly appreciated.