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.

Show previous replies

M

MagnusSPAuthor

Contributor I

Hi, I have LG B7 and beam with HDMI ARC and no problem with lip sync after i changed in the audio output>Digital Sound Out menu from pcm to AUTO.

Unfortunately that doesn't make any difference for me. I have a LG C7 and the problem is consistent no matter if I change the TV audio output to auto/PCM, or if I change the TV box sound to Dolby Digital/PCM.

I

iwb100

Collaborator II

Hi, I have LG B7 and beam with HDMI ARC and no problem with lip sync after i changed in the audio output>Digital Sound Out menu from pcm to AUTO.

Unfortunately that doesn't make any difference for me. I have a LG C7 and the problem is consistent no matter if I change the TV audio output to auto/PCM, or if I change the TV box sound to Dolby Digital/PCM.

This is the issue. In LG TV's some are affected and some aren't. And even within the same model different builds of that model are affected and others aren't.

This isn't going to be fixed I don't think as it seems like too much variance across hardware to be a simple firmware fix.

So if you can't live with the lip sync issue the only ultimate solution is a TV change. OR a sound setup that allows you to plug your devices directly into a sound system.

M

manicLA

Contributor I

I bought an LG OLED C7 two months ago and have been waiting to add Sonos speakers to it. I was going to go with the Playbase when the Beam was announced and decided to wait. Now, based on what I am reading it seems that Sonos is not the right product which is a bummer. The Beam was going to be my entry into the world of Sonos (I am the target!).

I do think Sonos should've have tested the Beam against LG OLED TVs and worked with them to introduce a FW fix, especially since this isn't a new issue, or alerted prospective buyers of the potential incompatibility. Lip sync issues are super disruptive and definitely not a "premium" experience.

M

mikewy

Contributor I

I had the same problem with my Samsung UE43J5500. I fixed it by changing through sound / additional settings. HDMI audio settings to PCM and changing the audio delay to 170. Hope it helps?

M

MagnusSPAuthor

Contributor I

I had the same problem with my Samsung UE43J5500. I fixed it by changing through sound / additional settings. HDMI audio settings to PCM and changing the audio delay to 170. Hope it helps?

Thank you for your respons. I’ve tried using PCM and manually adjusting the TV-box audio delay. Unfortunately that didn’t fix the issue.

M

mikewy

Contributor I

Try changing the audio delay to the extreme. Try 0 and then max ?

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Mettaman

Avid Contributor I

I have LG B7 connected to Optimum Cable box and Beam. After extensive trouble shooting the only fix for audio delay for my set-up (so far) is disabling the Dolby Digital pass through in the cable box. Please note that when streaming content (Netflix, Amazon) through the TV - without going through the cable box - there is no audio delay.

C

Chindizzle

Lyricist II

I have a 65B7A, nvidia shield, and beam and have the DD audio processing lag over ARC and Optical output that is mentioned every other day.

IMO, Sonos rushed this product to market. They make great music speakers but aren’t ready for TV speakers. Incompatibilities with top brand TV’s is pretty unreal in this day and age. Especially for a high end product like this.

The other issue I have is codec support. Sonos has DD support and literally nothing else. It’s really pathetic. Every other sound bar manufacturer has more than 1 codec support. Dts, atmos, DD+ should all be supported these days. All of them are heavily used in industry.

The current solution according to these forums iis getting an hdmi optical splitter and completely bypassing the LG OLED which is another 30 bucks. This fixes the lag issue but then it completely breaks Netflix and Amazon Prime Videos which uses DD+ for their high end videos. Everyone watches Netflix these days but guess what Sonos doesn’t support DD+ and since you’re now bypassing the TV it wont convert the DD+ to DD and u get no sound or u have to go into the settings every single time u play something and change it to stereo. Also, if u move to an hdmi splitter u regain sync but then u lose CEC and Alexa capabilities.

The other solution I see around is forcing to PCM which is stupid cuz you lose Dolby digital altogether and just bought a 400 speaker that now only supports stereo which u can likely get for less than a hundred dollars.

The speaker sound is great but the # of compatibility issues and workarounds needed to get this to work is absolutely insane. I’ve literally tried every recommendation in these threads and I still don’t have a good setup. For this price it should be plug n play.

If anyone has any other suggestions on fixing this I’d love to hear them. As of right now I would give this product 1-2 stars out of 5.

People say it’s not rocket science. But I’m actually a nasa rocket scientist and even I can’t get this to work as advertised.

M

montinis

Lyricist I

I have a 65B7A, nvidia shield, and beam and have the DD audio processing lag over ARC and Optical output that is mentioned every other day.

IMO, Sonos rushed this product to market. They make great music speakers but aren’t ready for TV speakers. Incompatibilities with top brand TV’s is pretty unreal in this day and age. Especially for a high end product like this.

The other issue I have is codec support. Sonos has DD support and literally nothing else. It’s really pathetic. Every other sound bar manufacturer has more than 1 codec support. Dts, atmos, DD+ should all be supported these days. All of them are heavily used in industry.

The current solution according to these forums iis getting an hdmi optical splitter and completely bypassing the LG OLED which is another 30 bucks. This fixes the lag issue but then it completely breaks Netflix and Amazon Prime Videos which uses DD+ for their high end videos. Everyone watches Netflix these days but guess what Sonos doesn’t support DD+ and since you’re now bypassing the TV it wont convert the DD+ to DD and u get no sound or u have to go into the settings every single time u play something and change it to stereo. Also, if u move to an hdmi splitter u regain sync but then u lose CEC and Alexa capabilities.

The other solution I see around is forcing to PCM which is stupid cuz you lose Dolby digital altogether and just bought a 400 speaker that now only supports stereo which u can likely get for less than a hundred dollars.

The speaker sound is great but the # of compatibility issues and workarounds needed to get this to work is absolutely insane. I’ve literally tried every recommendation in these threads and I still don’t have a good setup. For this price it should be plug n play.

If anyone has any other suggestions on fixing this I’d love to hear them. As of right now I would give this product 1-2 stars out of 5.

People say it’s not rocket science. But I’m actually a nasa rocket scientist and even I can’t get this to work as advertised.

holy word.
Sonos listens!!

D

davegriff34

Contributor I

I have just bought a Beam which I have set up with two play rear speakers. I had real problems adding the speaker and I now have to have the Beam permanently connected to the router by ethernet to ensure my other speakers work. It took a good couple of hours to get working. I now have lip sync issues on my Samsung tv and Sky Q box which I just can’ t resolve. I need an immediate solution as i have just bought it and will be returning if it doesn’t work. To be honest I am losing the will with Sonos products. My last speaker took two hours to get working.

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