If you're experiencing audio delay issues, read this

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That takes no optical inputs so your hdmi connection from your ps4 would need to connect to it and then optical split from the switch to the beam via an optical cable and the supplied sonos converter cable.  However, as you are using the inbuilt apps on your TV you need to get the audio out from there as well to beam which is where this solution might break.  The switch says arc compatible but I suspect that might only be on the output hdmi of the switch and not the inputs. 

If it were me to be safe I would get a optical/toslink switch without the hdmi, that way you can take optical audio feeds from ps4 and TV to the optical inputs of the switch then to a single optical output going to beam.

As for switch control, that depends on the switch. Most come with remotes which you could consolidate with a harmony device. 

No, sorry, I don’t have any personal experience with them. My Vizio doesn’t mess with the pass through signal. Just search on Amazon, there are dozens, you can choose based on which features you want, and once you know which brand/model you want, you can get it anywhere that has it. Amazon is a great place to do research, but sometimes not necessarily the place to purchase.

Which connection on the TV would depend on whether you’re using apps on the TV, and a switch that accepts an ARC signal to send out through the optical signal. But if you’re not, the an HDMI video signal is the same across all inputs. 

Thank you so much for all of your help. I have a switch here at home I am going to try first prior to making a purchase to see if that helps solve the problem. Thank you all that responded and answered my questions. Stay safe out there! 

I have the same problem with a Panasonic DX802b. Audio delay as discussed while bit-streaming to Playbar.

No issues when I directly play from the TV i.e built in apps or tv tuner but happens when passing through 5.1 via HDMI.

Temporary fixed by using a HDMI switch with optical out to the playbar which is a pity as I would like to use the TV to "manage" all my inputs.

Numerous people over at AVforums have the same issue but Panasonic is made aware by myself and others but their recent update did nothing to resolve the issue.
I got a new 60inch Sony and a play at for Black Friday. After returning the first play bar because it made smoke when I plugged it in.. it was dead on arrival. I got the second one hooked up today. It worked but there is a crazy delay that only gets worse with the lip sync delay setting. I’m going straight out of the TV via optical and just using the built in smart apps. It’s just aweful, being a filmmaker myself it makes me cringe. I’ll be returning this second one tomorrow if I can’t find a fix.
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My LG Oled C7 was updated for the first time in almost a year today and now the lip sync issue seems to have disappeared with my cable tv box. I will try out the PS4 Pro later, but here's hoping!
I have the same issue with my LG OLED55B... I have gotten it pretty close by setting the avsync setting on the TV to -3 or -4 when watching blu-ray's. However, it seems like every device i plug in wants a little different adjustment which is super annoying. I also haven't tried it yet, but using a built-in app I am guessing i'll have to change that value also.

Not sure if it is the same for you, but in Stereo there are no issues, but as soon as it goes to DD 5.1 the lag starts. I was wondering if this has to do with the amount of data going through there, or whether the 5.1 triggers the addition of the bass track or something.

Same situation here, LG C9 and Sonos Beam connected via HDMI, experiencing audio delay when using my PS4 outputting bitstream.  Changing the output to Linear PCM resolves the audio delay but is stereo only and sounds rubbish compared to bitstream.  I’ve emailed a complaint to LG but not holding out much hope for a resolution. 

It’s astonishing how many posts there are on the internet detailing the same problem going back to at least 2017.  People are spending extra money on what appears to be very inelegant solutions to something that could surely be resolved, if only these companies would take some collective responsibility and work together in the interests of their customers.

so glad i stumbled on this. just bought a LG OLED, apple tv 4k and the whole playbar sub play1 setup dropping north of $5k and this audio sync thing is asinine. i am so mad at myself for the wasted cash that could have gone into a solid wired setup. my setup is so barebones but i am constantly fiddling with the tv audio sync options depending on what apple movie, or nhl hockey game on the apple tv, or netflix on the apple tv etc and it is still never sync’d. dead simple setup - apple tv hdmi to LG, optical cable from LG to playbar. model is OLED65B7A-U running 04.70.36.

someone please fix this.
Hi Ifallo1,

My understanding is that the LG sound sync option is to sync the audio between the LG OLED TV and the LG Sound Bars (specifically LG SJ7/8/9).

I know this because that’s what the manual says to enable as I briefly owned the LG SJ9 soundbar and the audio was not synced correctly without that option enabled.

Full disclosure: The LG SJ9 sound bar with atmos was not nearly as good as the Sonos 5.1 system. The rear channels from sonos make more of an impact on listening than atmos in my opinion.

Thanks clipper- Yea, that's what I read as well. Guess I was confused since I do not have an LG sounbar (have a Sonos soundbar/sub), but am getting audio through my sounbar/sub with the LG sync option enabled (and there is no audio delay issue). Would this technically be a workaround?
That's fascinating. Your evidence points to the fact that light travels slower through one cable than it does through another.

I continue to use the cables that came with both of my PLAYBARS (several years ago), and still have absolutely no lipsync issues on either of my Vizio TVs.
Just hooked up my two Sonos 1 rears & tested out a few cable channels (as previously mentioned, I have an xfinity box). I do get surround sound with the option LG Sync enabled - no audio delay - but it only outputs in Stereo.

Switching over to Audio Out (Optical, Digital: auto), Sonos outputs in DD 5.1 - but I get the subtle audio delay of death.

Kind of what I expected.... Oh well. Frustration continues... Here's to hoping LG will have a fix.
FWIW, I bought a splitter and am now going directly from Sonos to each device. This did resolve the sync issue & everything is working great. I don't think relying on a 3rd party is acceptable, but is what it is I suppose....
For those of you who have the LG B6 or C6 and have been having the delay issue, there is new firmware available on the Korean LG site. They usually release first in Korea and it takes months if not longer for it to make it to North America. I've installed on my C6 and am seeing very positive results. Both PCM and DD 5.1 look in sync on multiple sources (Tivo, Apple TV, Xbox).

From the release notes, it specifically mentions an audio fix:: "Improved watch / play game's game subtitles and video / audio time mismatch (05.30.70)"

If you use Chrome and navigate to the Korea LG support site it will offer to translate which makes things easier to find. The firmware itself is not specific to Korea and works fine on a North American model.

Link: https://www.lgservice.co.kr/download/selectSearchView.do#none

For C6 filename is webOS3.0_M16_F16_75UH6850_93XX_96XX_05.30.70.zip
For B6 filename is webOS3.0_K2L_UH79_87_05.30.75.zip
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Thanks for writing up your findings in this thread. I'm also seeing audio delay issues, which are exacerbated by the fact that I just added surround speakers to my setup.

SONOS Playbase
Sonos One x2 (surround)

Xbox One X
Apple TV 4K
PS4 Pro
Nintendo Switch

My findings are that if I configure the inputs to use Stereo only, there is no delay. However, if I switch to Dolby Digital, then I start seeing audio sync issues.

I'm currently testing having the Xbox plugged directly into the SONOS. I can't currently perceive any difference between Surround and Dolby Digital when bypassing the TV, so it does suggest that the TV is munging with the audio stream when it's being sent in anything other than Stereo. Is the packet encoding on the wire that much more with surround that it causes a delay?
I have the same issue using the PLAYBASE + SUB, both on wired Ethernet, using the LG OLED65E7P TV. No amount of adjusting A/V sync settings on the TV or the SONOS app have resolved the issue. I can get close to great A/V sync as long as each output device is set to stereo only. That sucks, but at least it’s watchable.

I’ll keep monitoring this thread for a fix, and I’ll contact LG and SONOS again. It’s really disappointing to experience this with such otherwise great (and expensive) equipment.
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Hey guys,

Same here Im afraid. Just purchased a week ago :
SONOS Playbase

...Delighted by the display but really disappointed by the Lip Sync.
I especially purchased a Playbase as my 2 Play 5 Gen 2 suffered (as expected) of bad audio delay.

I tried all fixes that I read online and here on particular but I can't seem to fix it.
This ruins my overall excitement to have acquired such great piece of hardwares.

I was on the market to invest in 2 more play 1 + Sub to complete my 5.1 equipment but I won't go ahead until this is fixed. To be fair I feel a bit of a fool now that I ditch over 2,500 Euros !

I will contact both Sonos and LG Support Team but reading your previous feedback I am not overly optimistic.


Voice sync delay issue  Sonos Playbar, Sun, 2 Play:1s, Sony Bravia TV and Xfinity cable  

I am having the same problem with a Playbar, Sub and 2 Play1s as many others. For months, A temporary fix for me has been to change the channel and then immediately come back to the channel I was watching. And it’s fixed for a little while. Then the delay returns. Thinking it was the cable box I called Xfinity and got a replacement cable box. That didn’t fix it. Then I played with the delay options in the Sonos settings. That didn’t work. So I disconnected the optical cable and went back to TV audio. Guess what?  No sync issues Sonos!  So I’m guessing that it’s the optical interface that’s the problem. I am really angry about this because a lot of people are experiencing it, not just me or us. I am referencing your case # 171023-002526 and will post my own on this  

Sonos, please help us. 



To perhaps help confirm, (or maybe refute?), that it’s possibly your PlayBar at fault here, have you tested to see if there are any audio-delay/lip-sync issues, when you bypass the Sony TV completely and use an audio extractor/splitter instead? It would be well worth exploring that option, I think, particularly, as I suspect the Sony Bravia TV may not support audio ‘pass-through’ on its HDMI/optical ports, like you see nowadays on some of the recent LG TV’s.

Here are three ‘randomly’ chosen examples of splitter/extractors that other users have posted in the community here in the past, which some have used to test with their TV and found that such a device has 'often' resolved their lip-sync issues with a Sonos HT product, where it proved to be their TV’s processors ability at fault and unable to 'process' the surround audio signal quickly enough through the TV’s HDMI/Optical port’s:

  1. https://www.amazon.com/NewBEP-Switcher-Selector-Extractor-Splitter/dp/B07438WJ8G/ref=sr_1_7
  2. https://www.amazon.com/AV-Access-Extractor-Splitter-Amplifier/dp/B07D9BNVM1/ref=sr_1_21_sspa
  3. https://www.amazon.com/Extractor-Koopman-Optical-Converter-Supports/dp/B082KW5MXS/ref=asc_df_B082KW5MXS

….and just to add that playing PCM audio to the stereo 'only' internal TV speakers is a different thing entirely to asking the TV to process surround sound audio and pass it out through its optical port to a ‘5.1 audio Receiver'. That’s a bit like comparing Apples to Pears.


What is it that you want Sonos to say? They can't throw other companies under the bus, they rely on those companies to provide devices that Sonos connects to.

And when was the PLAYBAR designed? According to Google, it was released in February of 2013. Let's assume, for sake of argument, that the original design started at least two years before, in order to get the design completed and a factory line spun up. So in 2011, what was the common factor for connecting to TVs? When was HDMI-ARC released as a common feature for TV sets, and in common use? Can we agree that the PLAYBASE is basically a reframe of the PLAYBAR?

I'd suggest that the Beam was one of the early users of the HDMI-ARC for speakers. Many manufacturers have supported HDMI-ARC, but it's only in recent years that it's become enough of a common denominator for a company like Sonos to implement a device that uses it.

I would not say Sonos is a trailblazer, but that makes sense to me, inasmuch as they are a company that wants to sell the maximum number of devices. That's their business model. They don't make any money any other way. So the trailing the common connection standards makes sense. It wouldn't be intelligent for them to invest in a connection process that isn't in some larger than zero percent of TVs. But they shouldn't bet a lot of money on things that don't pan out in the marketplace, otherwise they put themselves in a bad financial position. Imagine a company that bet the farm on 3D televisions....a format that doesn't appear to have legs, at least at this moment.

Do I expect/hope that eARC is the next big thing? Sure. But if I expect Sonos to implement it on their next big TV speaker release, I wouldn't expect them to do so if only 10% of the TVs in the marketplace have the capability, unless there's some backwards functionality included in the spec. Don't know, haven't researched enough yet.

And yes, I consider the adherence to Dolby Digital and Stereo as the only options to be an aspect of the fact that the majority of devices that they've shipped are based on optical connections....a standard that is still common in TVs sold today.

At the end of the day, I expect Sonos to do things that benefit Sonos' bottom line. Not necessarily what benefits my needs at the moment, but hopefully there's a bit of alignment there. But I'll never expect a company that appears to be focused on ease of use and maximum market share to be a company that makes wild bets on tech that hasn't penetrated the marketplace to a certain extent.

And frankly, I'm not sure what you can expect Sonos to say here in this thread that would be beneficial to the marketing strategy of the company.
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You need a HDMI splitter with audio out such as a viewhd box from amazon. If you have a harmony remote you can give everything to switch correctly automatcially, or LG could address the issue. Better still sonos should get with the modern age and use HDMI for audio, ridiculous
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Redesign the SONOS playbar/playbase to use HDMI passthrough so embedded audio stays synced.
The problem isn't in the Sonos software, it's in the LG's processing of the surround signal. If you look through this area of the forum, you'll find a lot of people who have "fixed" the issue by purchasing an HDMI switch with an optical output, and pull the sound out before it reaches the TV.
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LG C8 owners may be pleased to know that new firmware 04.10.55 just went official that fixes the Arc audio issues. I have had it in beta for a little while and confirm lip sync is no longer terrible with my Sonos Beam over Arc.
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I have an oled c7 with the playbase 5.1 setup and i have this terrible lag problem. I also have ks9000 that i had previously setup with the playbase 5.1 setup and guess what, same problem. All sonos keep saying its the tv. Really?!?!
I have this exact issue with my Philips 55OLED803 (which is on Android Oreo). If I use the TV's native apps for Netflix I can get 5.1 sound without any trouble (as shown in the Sonos App). If I try to get my PS4 Pro to use 5.1 Dolby Digital, it is paired with a delay of at least 0.5 sec.
For anyone that circumvented this issue by using a switch to extract the audio and connect straight to the Playbar: Which model is recommended to maintain the same level of video quality? (4k 60fps HDR)

For anyone wondering about this: I was able to solve this by using the switch located here:
While maintaining 4k@60fps HDR quality. The auto switching between channels seems fast and works flawlessly (might also be because of HDMI CEC), and it still allows for 5.1 sound on my Smart TV Apps through HDMI ARC. I wanted a device that was able to switch automatically between inputs as I don't want to fiddle with an extra cheap remote for my setup, I am pleased this was the case. And best of all: No more audio delay!
I have the same problem - lipsync is hosed on my LG OLED with audio connected to Play Base via optical audio. But I've had the set up for a while (since just after Christmas) and haven't noticed this problem till just now. AND my setup has been disconnected for about 3-4 weeks (renovations). Could something have happened since say the middle of February? Some auto update of Sonos or LG? My Sonos did update today when I hooked it up again and turned it on for the first time in weeks. Don't know if OLED TV updated. SOMETHING has changed... (and thanks for all this info: I'll watch for solution...)