Contributor I

Answered

Sonos Beam / LG C7 / TV-box lip sync problem

30 replies
8478 views

Hallo,

I purchased the new Sonos Beam today. My TV is a OLED LG65C7V. I have used the included HDMI from Sonos to connect my Beam to the HDMI2 (ARC)-port on the TV.

To watch TV (regular broadcasting channels) I use a digital box from my broadcaster GET (Norway). This is connected to the HDMI1 on my TV.

When I'm watching TV with my Beam, there is a lip sync fail. I had no issue with this before the Beam. However, when I now watch Netflix (with the integrated smart-OS on the TV), there is less or non problem with lip sync.

Anyone have a solution for how I can fix the lip sync when watching regular broadcasting TV? Please let me know if you need more information about my setup (not an expert in this).

Regards,
Magnus

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Ryan SAnswer

Retired Sonos Staff

Thanks for sharing, everyone. We're looking into the trouble with some LG and Samsung TVs, similar to the issue that existed with the Optical connections. We're also investigating a potential issue with the audio from Sky Q cable boxes on certain channels.

I'd like to encourage everyone, if you're having trouble with lip sync or audio playback with your Beam, please give us a call. The team would like to look into what's happening and what might be in common. The more information here, the better, as this could be certain TV models, a similar software or hardware version of cable box, or any number of other variables.

Mark good posts by pressing the like button, and select the best answer on questions you've asked to help others find solutions.

Ryan S

Retired Sonos Staff

Hi Magnus, we haven't found this same delay in testing with the Beam and the LG TVs, though some cable boxes have had this issue too. We'd love to take a look at your setup and see what's happening. Can you give us a call on our support line and work with a technician so we can get a closer look?

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P

Pr0d1gyNIC

Lyricist III

I am having the exact same issue with my SKY Q box and my beam. It’s very frustrating. The sound is lagging behind the picture, I have the LG 55 B7V.

I

iwb100

Collaborator II

Isn’t audio sync problems on LG TVs via ARC or optical a known issue with the TV firmware itself? I had audio sync issues before the Beam and they are still there now, though a bit better it seems. Loads of threads discussing these issues on here and elsewhere,

Ryan S

Retired Sonos Staff

Isn’t audio sync problems on LG TVs via ARC or optical a known issue with the TV firmware itself? I had audio sync issues before the Beam and they are still there now, though a bit better it seems. Loads of threads discussing these issues on here and elsewhere,

We've seen issues with some of those TVs handling Dolby Digital over optical but want to make sure it's the same problem before just assuming that's the case.

Mark good posts by pressing the like button, and select the best answer on questions you've asked to help others find solutions.

B

billiejoe87

Chromatic Producer I

Isn’t audio sync problems on LG TVs via ARC or optical a known issue with the TV firmware itself? I had audio sync issues before the Beam and they are still there now, though a bit better it seems. Loads of threads discussing these issues on here and elsewhere,

We've seen issues with some of those TVs handling Dolby Digital over optical but want to make sure it's the same problem before just assuming that's the case.

Have you guys got an update to share with us from either LG or yourselves about the optical issue being worked on? LG OLED are basically the pinnacle of TV's at the moment so it would be good to know that Sonos is ever going to be compatible with it after spending so much money.

1 x Arc, 1 x Beam Gen 2, 1 x Amp, 2 x Sonos In Ceiling Speakers, 2 x Sub, 4 x Sonos Ones, 2 x Sonos Era 100, 5 x Symfonisk Lamp (Gen 2)

G

george.l.b

Contributor I

I have similar problem with my LG TV, Beam connected to LG via supplied HDMI cable
1) Lipsync issues with free to air using native tuner. Less of a problem with netflix via LG OS but still noticable.
2) Alexa cant turn the television on of off either. Says no supported device

What a shame as as the sound is so nice. But I'm not paying that kind of money for a lipsync issue in 2018.

Surely you guys test this when you know theres a known issue (that I didnt know about.) Maybe a disclaimer is required for Beam and LG TV's

B

billiejoe87

Chromatic Producer I

I have similar problem with my LG TV, Beam connected to LG via supplied HDMI cable
1) Lipsync issues with free to air using native tuner. Less of a problem with netflix via LG OS but still noticable.
2) Alexa cant turn the television on of off either. Says no supported device

What a shame as as the sound is so nice. But I'm not paying that kind of money for a lipsync issue in 2018.

Surely you guys test this when you know theres a known issue (that I didnt know about.) Maybe a disclaimer is required for Beam and LG TV's

Sonos total silence about any fix for this issue is very damning. You can look all around online and it is almost always an LG issue with Sonos specifically, not other sound manufacturers. Sonos blamed the optical port on the LG OLED and Sony XBR TV's and people didn't have much choice but to believe Sonos considering most soundbars from other manufacturers use HDMI ARC and it was hard to compare. If now HDMI ARC is also having the same problem then it is very problematic for Sonos, as other soundbars aren't having the same issue.

I would be surprised if something major doesn't come from this resulting in Sonos needing to label on their packaging incompatibility with LG OLED. People are spending way too much money to then not even have lip sync work properly to let this go.

1 x Arc, 1 x Beam Gen 2, 1 x Amp, 2 x Sonos In Ceiling Speakers, 2 x Sub, 4 x Sonos Ones, 2 x Sonos Era 100, 5 x Symfonisk Lamp (Gen 2)

G

george.l.b

Contributor I

I would be surprised if something major doesn't come from this resulting in Sonos needing to label on their packaging incompatibility with LG OLED. People are spending way too much money to then not even have lip sync work properly to let this go.

Cheers for reply, Ill try again tonight but if its a known issue looks like Ill box it back up and return it. Bugger.

W

wcparker

Contributor I

My new Sonos Beam will not maintain an ARC connection between the TV speaker and the Beam for more than 5 seconds. It bounces back and forth between the two rendering the Beam unusable.

Ryan SAnswer

Retired Sonos Staff

Thanks for sharing, everyone. We're looking into the trouble with some LG and Samsung TVs, similar to the issue that existed with the Optical connections. We're also investigating a potential issue with the audio from Sky Q cable boxes on certain channels.

I'd like to encourage everyone, if you're having trouble with lip sync or audio playback with your Beam, please give us a call. The team would like to look into what's happening and what might be in common. The more information here, the better, as this could be certain TV models, a similar software or hardware version of cable box, or any number of other variables.

Mark good posts by pressing the like button, and select the best answer on questions you've asked to help others find solutions.

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