If you're experiencing audio delay issues, read this



Show first post

434 replies

a new motherboard really fixes this issues on LG Oleds?

NO! Lipsync issue with Dolby digital 5.1 content over PrimeVideo and two different HDMI sources.

Then you might have different issues. If the lipsync issues only occur over HDMI sources a new motherboard fixes them.
Most of my testing is on my firestick on Netflix or prime. Only used the virgin box a little bit. It's a v5 box which has a Dolby output setting which I've enabled.
Even the suggested audio splitter will not resolve the Amazon fire-stick Apps delay issue, in the same way it does not resolve any TV in-built Apps.. so the only thing you can do is either...
  1. Speak to Panasonic support and see if they have any suggestions. The Sonos Beam is just a speaker and it can only play the audio when it receives it and the Panasonic is not delivering that quickly enough through HDMI-ARC...
  2. On some TV’s you may find the optical port will work a little quicker and so try switching the Beam to optical using the provided adapter. Obviously you will lose the HDMI-CEC control if you go down that route, but that’s relatively minor if it solves the lip-sync issue for DD 5.1 output.
Badge
a new motherboard really fixes this issues on LG Oleds?

NO! Lipsync issue with Dolby digital 5.1 content over PrimeVideo and two different HDMI sources.

Then you might have different issues. If the lipsync issues only occur over HDMI sources a new motherboard fixes them.
Badge
I beg to differ. I have had two attempts to fix the audio delay on my B7, both replacing the main board. Neither have worked and I have now reached the end of the road with LG. I am returning the TV for a refund and will try another brand, and probably not OLED for now. Shame really as the picture was stunning. However LG have been so poor at helping I am happy to be leaving them behind.
I don’t believe a fix for this issue actually exists
Userlevel 4
Badge +6
Anyone giving up an OLED screen over this issue is crazy. I don't know how anyone could adjust back to anything else after experiencing OLED. The picture is that good.

Yes, LG and Sonos support has been p**s poor on this issue, and I believe both companies are to blame. However, just buy an optical splitter and a harmony remote and program it to change inputs automatically when changing sources and be done with it. You don't need to worry about the Apple TV 4K not having an optical output as it will not have a lip sync issue if you connect it directly to the TV and force Dolby Digital 5.1 in it's settings.

Your cable box, PS4, Xbox One etc can all be connected via optical cable directly to the splitter. This will take you all of an hour or so to setup, you don't need to worry about losing any picture quality as the picture is still travelling over HDMI directly to the TV, and you will actually gain Dolby Digital 5.1 if you have a PS4 and play Blu Ray's, as it will only transcode DTS to Dolby Digital 5.1 over optical.

Once again, if you buy a Harmony remote you can program it so you wont even realise the optical switching is happening, other than the harmony possibly taking an extra second or so when changing activities.
Userlevel 4
Badge +6
Hi all - unfortunately, I'm back again with a lip sync issue between my Sonos system (Playbase + Sonos 1 surrounds) and an LG C8 TV. I use my Apple TV 4k for all content, and it seems to work well for most services (Netflix, HBO, Hulu). But I recently purchased some content through iTunes (movie and TV series), and there is a serious sync issue (audio is behind the video).

Bruce had previously recommended me the Flexson HDMI switch: https://www.amazon.com/Flexson-3-Input-Converter-PLAYBAR-PLAYBASE/dp/B06W5QJW9T but in an Amazon review, someone is saying it doesn't support 4K content (no HDCP 2.2 support).

I'd really like to be able to watch the highest quality content I can (including 4K content) - so wanted to see if someone could recommend a good HDMI switch for me that might be able to resolve this sync issue. (Is it true that there is a built-in delay of somewhere between 25-35ms with Sonos - is it possible I'm just noticing this delay, and if so, is there a way to remove that?)

Thanks!

thats odd, I have a 4k apple tv and its the only thing that I dont get audio delay from? I even have itunes movies and shows, but I am using the beam over arc with a 2017 65" b7 oled. Did you set your apple tv to force dolby digital?


I agree - very odd. I have set the TV to force Dolby Digital. 😞. Interesting you have iTunes movies and shows, too, and it seems to be working OK?


Palico,

Just to be clear, have you set the TV to force Dolby Digital or the Apple TV 4K to force Dolby Digital 5.1? You specifically need to do this in the Apple TV 4K settings. Nothing at all to do with the TV itself.
Hi all - unfortunately, I'm back again with a lip sync issue between my Sonos system (Playbase + Sonos 1 surrounds) and an LG C8 TV. I use my Apple TV 4k for all content, and it seems to work well for most services (Netflix, HBO, Hulu). But I recently purchased some content through iTunes (movie and TV series), and there is a serious sync issue (audio is behind the video).

Bruce had previously recommended me the Flexson HDMI switch: https://www.amazon.com/Flexson-3-Input-Converter-PLAYBAR-PLAYBASE/dp/B06W5QJW9T but in an Amazon review, someone is saying it doesn't support 4K content (no HDCP 2.2 support).

I'd really like to be able to watch the highest quality content I can (including 4K content) - so wanted to see if someone could recommend a good HDMI switch for me that might be able to resolve this sync issue. (Is it true that there is a built-in delay of somewhere between 25-35ms with Sonos - is it possible I'm just noticing this delay, and if so, is there a way to remove that?)

Thanks!

thats odd, I have a 4k apple tv and its the only thing that I dont get audio delay from? I even have itunes movies and shows, but I am using the beam over arc with a 2017 65" b7 oled. Did you set your apple tv to force dolby digital?


I agree - very odd. I have set the TV to force Dolby Digital. 😞. Interesting you have iTunes movies and shows, too, and it seems to be working OK?


Palico,

Just to be clear, have you set the TV to force Dolby Digital or the Apple TV 4K to force Dolby Digital 5.1? You specifically need to do this in the Apple TV 4K settings. Nothing at all to do with the TV itself.


Hi, yes, forced to Dolby Digital 5.1. There’s still a slight delay where the audio is behind the video. If I switch to PCM on the LG, everything syncs up perfectly. Do you think an optical splitter would help?
Might email Panasonic but probably won't hear from them within the return window for the beam.

Not planning to buy a splitter as these things should work without needing extra hardware but I appreciate that it's worked for others.

If I did get a splitter then surely connecting the firestick to that instead of the TV would fix it.

Gonna do some more testing tomorrow and will post back if I improve this.
Userlevel 4
Badge +6
Hi all - unfortunately, I'm back again with a lip sync issue between my Sonos system (Playbase + Sonos 1 surrounds) and an LG C8 TV. I use my Apple TV 4k for all content, and it seems to work well for most services (Netflix, HBO, Hulu). But I recently purchased some content through iTunes (movie and TV series), and there is a serious sync issue (audio is behind the video).

Bruce had previously recommended me the Flexson HDMI switch: https://www.amazon.com/Flexson-3-Input-Converter-PLAYBAR-PLAYBASE/dp/B06W5QJW9T but in an Amazon review, someone is saying it doesn't support 4K content (no HDCP 2.2 support).

I'd really like to be able to watch the highest quality content I can (including 4K content) - so wanted to see if someone could recommend a good HDMI switch for me that might be able to resolve this sync issue. (Is it true that there is a built-in delay of somewhere between 25-35ms with Sonos - is it possible I'm just noticing this delay, and if so, is there a way to remove that?)

Thanks!

thats odd, I have a 4k apple tv and its the only thing that I dont get audio delay from? I even have itunes movies and shows, but I am using the beam over arc with a 2017 65" b7 oled. Did you set your apple tv to force dolby digital?


I agree - very odd. I have set the TV to force Dolby Digital. 😞. Interesting you have iTunes movies and shows, too, and it seems to be working OK?


Palico,

Just to be clear, have you set the TV to force Dolby Digital or the Apple TV 4K to force Dolby Digital 5.1? You specifically need to do this in the Apple TV 4K settings. Nothing at all to do with the TV itself.


Hi, yes, forced to Dolby Digital 5.1. There’s still a slight delay where the audio is behind the video. If I switch to PCM on the LG, everything syncs up perfectly. Do you think an optical splitter would help?


An Optical switcher will help with any device that has an optical output. The Apple TV 4K doesn't, so it will not be able to be connected via an optical switcher. The Apple TV 4K should not be experiencing this issue however. I would give apple a call to troubleshoot, especially as it's only happening on itunes content.
I’m noticing a slight delay on some Netflix content too. Would it help if I recorded a video of the issue and linked to it?

I think I might just be very susceptible to the audio delay. But I do see a difference when switching to PCM vs Auto on the LG tv.
Userlevel 2
Badge +1
As an update to my post: The motherboard was replaced on my B7V, however, it did not solve the issue with lipsync 😕 maximum of -5 was closest though still not in sync. I will now wait for feedback from LG on next steps.

Another update. I was told I will have another mainboard replacement next week after five calls to LG since the first replacement (four this week!). I'm sad to say my patience with LGs customer support is worn thin at this point due to lack of following up as promised (and the unresolved issue). I can understand that they aren't magicians, but calling a customer back as promised does not require witchcraft, only a phone. Hope they can cook up a mainboard that resolves the issue so I can focus on enjoying content instead of this s....


Due to more poor experience with LGs support and no service in sight I have now forwarded all my written communication with LG and a final summary of the calls with LG to the sales channel with a copy to LG and asked for a complete refund/return of the TV. I will call the consumer rights authorities later today for advice. LG have been aware of the issue with my product now for two months next week without resolving it. Completely unacceptable.


Just to share another update. The TV was returned to the sales channel who forwarded it to their service partner. They again found nothing wrong with the TV. I therefore took the TV home on friday. I started out recording several clips, but found out it would take to long and settled for one to not spend a whole day on it. I made recordings with different audio settings and connections: Xbox One X connected to TV through HDMI, toslink from TV to Sonos Playbar - TV set to bypass, then steps -5 to +1 and finally the last video shows with the Sonos Playbar connected directly to the Xbox One X over toslink. The videos have been shared with the sales channel and I will keep them live until the case is solved through either the sales channel or through the consumer rights body in Norway who have received a complaint on both LG and the sales channel as I see no other option after two months of this nonsense. I am talking in Norwegian but the settings everyone with the TV-set should understand to see if this is comparable to your experiences. https://photos.app.goo.gl/e3RNi9qSkqaixMLV8

Again, my issue is with LG 65OLEDB7V.
Userlevel 3
Badge +2

FWIW, I still see lip sync delay with pass-through enabled. I have an LG C9 and Sonos Beam connected directly to the TV via the HDMI ARC port. 

Userlevel 4
Badge +1
I got my Beam today and I am not seeing any lip sync issues.

Devices:
1. OLED65E6P (2016 model) firmware version = 5.30.30 Audio is set to LG Sound Sync (Optical); AV Sync Adjustment is Off
2. Tivo Bolt. Set to output Dolby Digital.
3. Apple TV 4k. I could not modify the audio output setting. It was greyed out.
4. Xbox One X. Set to bitstream and dolby digital
5. Nintendo Switch
6. Super Nintendo Retro Console

The connection between the TV and the Beam is as follows:
OLED65E6P --> 6' Amazon optical cable --> optical coupler --> Sonos HDMI to Optical adapter --> 3' Amazon HDMI cable --> Sonos Beam

The Tivo, AppleTV, Xbox, Nintendos are all are connected to HDMI ports on the OLED65E6P. Just to be clear, I am not using the optical output on any of those devices.

*You may be wondering why I needed the optical cable and coupler. It's because I couldn't run another HDMI cable through the existing holes in my wall. The optical cable was a lot easier to fish through the existing holes. The coupler is a $4 one I got off Amazon. ;)

I did need to manually press the volume up button on the Beam to get it at a level that I liked. It was set very low out of the box. Beam seems to remember the level even after I power off devices, so that's good.

Overall, I am really pleased with the improvement in sound quality. Much better than the built in sound bar that is on the E6P.


You won’t see a delay as the beam is the only Sonos product with a hdmi connection. The issue is worth optical. You need a hdmi switch to solve the problem
Userlevel 4
Badge +1
Right. I have an LGB7 and had my beam yesterday. Over hdmi arc and Dolby digital the audio sync problems are there. Nothing can fix it as it’s an issue with lg and processing DD. I turned both the tv and my sky q to output pcm, and the issue completely disappears. I have had dialogue with Sonos and they have told me PCM is no different from DD for the beam, and there is no noticable difference. Can anyone confirm if this is true. If it is I am keeping my beam. If it isn’t, it’s going back!!

With PCM you won’t be able to get 5.1 sound if you decide to purchase orhers speakers to extend your system.


Correct, what is the point spending 100s of dollars only to get pcm? Funny.
Another story of sync woes here. I have a Philips 50PSUS7303. When I output audio to Mulitchannel, the audio lags the video. When I output to stereo it is OK.When I use an HDMI extractor it seems OK.
I had a full AV receiver/Surround sound and replaced it with Sonos, which has proven to be a downgrade in many ways.
It still seems odd that the fault is in the TV end? Across different manufacturers? I am not optimistic for a solution.
Why would that seem odd? You've even proven your case, by using an HDMI extractor. Given that, how could it be anything other than the TV at fault?

And it's possible that all of these manufacturers have purchased the part in question from the same place.
Why would that seem odd? You've even proven your case, by using an HDMI extractor. Given that, how could it be anything other than the TV at fault?

And it's possible that all of these manufacturers have purchased the part in question from the same place.


Yeah fair enough, although the HDMI splitter has just added delay on the video front meaning I can fix the sync in the Sonos app. Maybe all soundbars have the same problem and most TV's aren't capable of outputting multi-channel audio without delay.

Either way, it's just a frustrating situation when I bought the Sonos to simplify things.
Badge +1
This problem has been going on long enough ive read post 2 years old new tvs have come and gone firmware updates and yet this problem still exists 1 second delay.
I saved hard purchase my new tv ( Samsung) sonos beam 2 sonos 1 over £3000 and yet the dreaded lip sync problem still exists ive tried allsorts to no avail. running my hdmi lead from my beam in to the optical connector straight in to sky q box
This works for sky viewing but if i want to use the apps on my tv no good if i want to watch a station on my tv no good
I may aswell of set fire to £ 3000
Would i recomend sonos yes but not for surround sound connected to what seems to be all up to date TVs
Very very disappointed
I'll certainly agree with the frustration part of that. Sometimes we end up paying for all of the extra technology we use in our daily lives.
Badge
I've experienced so much frustration with the combination of the Sonos Playbase + Sub, and the LG OLED65E7P. At this point, I wish I had never invested in the Sonos gear to begin with. It gives me no joy to say that, as the other aspects of the Sonos system are fantastic, and I really appreciate the recent addition of AirPlay to the Playbase.

I've tried two different HDMI switches with optical audio extraction, and found that neither one was sufficient for my system. While audio extraction definitely solved the audio / video sync issue, other unacceptable problems were introduced into the mix. Neither of the devices properly supports Dolby Vision or 4K at 60Hz, and each of them added undesirable glitches to the video with every connected source. For the reference of others in this thread, these are the ones I've tried so far:


Has anyone else been successful with the combination of an LG OLED display, a Sonos Playbase (or Playbar, I suppose), and a third-party device in-between to resolve audio / video sync? If so, can you please share your experiences and the devices that you used to achieve this?

At this point, I'm thinking I should just scrap the Sonos system altogether and buy a receiver and some decent speakers. It's not as attractive, nor as flexible as a Sonos system, but at least I could guarantee audio / video sync with surround sound support.

Thanks to everyone who has been providing help in this long and ongoing thread. I've definitely been helped by many in here, and I really appreciate it.
Userlevel 2
Badge +1
@RedFive If you are willing to stick with the faulty TV, you can introduce a home cinema amp with support for switching both picture and sound (as long as it has toslink output).
I have same issue. Persisted with LG support - they replaced motherboard eventually but made no difference either. Still have audio delay.
Userlevel 1
Badge
Has anyone tried using an HDMI to optical adapter taking the sound out of the TV via ARC? (or is this what you mean by Audio extraction?). this is a common issue across all types of TVs, it seems, going out of the TV to Sonos via optical. My solution until Sony fixed it was an optical switch so that I could go directly from the source (Sky Q in my case) and switch to the other optical channel when I wanted other sources. As I said in an earlier post, Sony did have a solution for the problem but it was initially unusable due to picture issues when the SYNC function was in use.
Userlevel 7
Badge +19
That sounds really frustrating, Prodan, thanks for sharing. It looks like that case you mentioned is open with one of our most senior technicians, so you're in good hands. Let me know if I can help with anything else, and hopefully we can get all your questions answered soon. Talk to you soon!
For those of you that may be blaming Sonos for this issue, I have an LG OLED C8, and an LG SK10Y soundbar, and I have the same sync issues when the sound on my DirecTV box is set to Dolby. For the work around I have a question: my DirecTV box has HDMI, and Digital Audio Out (RCA jack, not Digital Optical). Soundbar has Digital Optical and ARC. Can somebody please recommend the exact configuration and products to use which are available in US?

Reply