Avid Contributor I

If you're experiencing audio delay issues, read this

551 replies
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I've been living with lip sync issues (audio behind the video) since I got my Playbar about a year ago but I finally decided to do something about it. After multiple conversations with Sonos support and the LG's support people (they kept blaming each other for the audio delay), I decided to email Sonos' CEO about the issue.

After a few hours, I got a reply back from him, CCing a team manager who was going to look into the issue. We scheduled a call and he had me send various diagnostics to him. He said that the engineering team was going to investigate and get back to me.

A week later, I got an update. He told that they are still working on the issue. He also said that only one other person had reported the same issue (I assume that means that only one other person with an LG TV). So, if you're having audio delay issues and you've tried all other troubleshooting, reach out to Sonos support and have them look into it. If it helps you might mention my reference number, which has already been escalated:

Keep in mind that my setup is pretty straight forward (LG C6 OLED TV connected directly to the Playbar via Optical, audio playing from the built-in apps) and every single thing LG and Sonos suggested, including going into the TV's service menu and changing things there.

I know there are multiple post on the topic so hopefully we can solve at least some of the issues causing audio delay.

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imrnet

Contributor I

I've been living with lip sync issues (audio behind the video) since I got my Playbar about a year ago but I finally decided to do something about it. After multiple conversations with Sonos support and the LG's support people (they kept blaming each other for the audio delay), I decided to email Sonos' CEO about the issue.

After a few hours, I got a reply back from him, CCing a team manager who was going to look into the issue. We scheduled a call and he had me send various diagnostics to him. He said that the engineering team was going to investigate and get back to me.

A week later, I got an update. He told that they are still working on the issue. He also said that only one other person had reported the same issue (I assume that means that only one other person with an LG TV). So, if you're having audio delay issues and you've tried all other troubleshooting, reach out to Sonos support and have them look into it. If it helps you might mention my reference number, which has already been escalated: 171023-002526.

Keep in mind that my setup is pretty straight forward (LG C6 OLED TV connected directly to the Playbar via Optical, audio playing from the built-in apps) and every single thing LG and Sonos suggested, including going into the TV's service menu and changing things there.

I know there are multiple post on the topic so hopefully we can solve at least some of the issues causing audio delay.

I’m still having issues with my SONOS Soundbase and LG C6 OLED TV. We’re you able to get this resolved? If you have can you share the resolution with me. You can reach me directly at IMRNET@AOL.COM. Thanks in advance.

Fez33

Trending Lyricist II

Just had a long conversation with samsung regarding audio delay/lipsync problems for them to turn round snd say there just not compatible thats there reply £3000 spent for them to not be compatible.

Airgetlam

Unfortunate. You’d still be able to use an HDMI switch to pull the audio out before it reaches the circuitry of the Samsung, and use your Sonos, though. Slightly less neat, but a better chance of not tossing the investment.

Bruce

Ken_Griffiths

Just had a long conversation with samsung regarding audio delay/lipsync problems for them to turn round snd say there just not compatible thats there reply £3000 spent for them to not be compatible.

Presumably, some TV internal processors are just too slow to decode and deliver the Dolby Digital 5.1 audio signal through their ports in a timely manner.

Where relevant, I would buy an audio splitter and choose to bypass the TV altogether and let the TV fallback to using PCM stereo. Pity that your Samsung TV does not support audio pass-through.

The connected Sonos HT device can only play the audio, of course, as soon as it is received and some TV’s simply can’t send it in a timely fashion to keep up with the video on screen. More recent TV’s are quite efficient in this area, but sometimes they can come at added cost.

LG TV’s are pretty good IMHO and their recent TV’s not only have faster internal processors, but now also provide 'pass-through’ on the ports of some WebOS supported models ..and appear to sync rather well with most connected devices, but again these things are a little more expensive than some other TV’s.

Fez33

Trending Lyricist II

Nearly £3000 for a tv i would hope it would work property

Ken_Griffiths

Nearly £3000 for a tv i would hope it would work property

You would hope so… it’s rather a lot of money for a TV… I hope it is OLED and has multiple HDMI-eARC ports too for that price?

Fez33

Trending Lyricist II

If yiu have read through the audio delay problem you will know i have a Samsung tv

Although it affects a lot of brands i suggest you find the email address of the ceo of the brand you use

Ken_Griffiths

If yiu have read through the audio delay problem you will know i have a Samsung tv

Although it affects a lot of brands i suggest you find the email address of the ceo of the brand you use

I don’t see what the brand name has to do with it being an OLED TV with HDMI-eARC? However, the audio extractor/switcher, as suggested by Bruce in his post above, is perhaps the only way you’re likely to presently resolve the TV lag issue. By by-passing the delays in the Samsung TV processor/ports, it should (hopefully) resolve your lip-sync problem.

N

Neil Catling

Lyricist I

Changing the optical setting to pass through instead of Auto has seemed to work for me.

Im running a LG Oled with the playbar

Ken_Griffiths

Changing the optical setting to pass through instead of Auto has seemed to work for me.

Im running a LG Oled with the playbar

Yes, if playing a Movie/Channel (for example) from a Cable TV Box, or a similar device, attached to a TV’s HDMI Port, where the TV has lip-sync issues, then switching to 'pass-through' makes complete sense. It’s like attaching the Cable TV Box direct to the Receiver/Beam/Soundbar, or to an audio splitter/extractor, as there is then no ‘middle man’ ...(The TV)... to delay things.

Some TV’s like the LG OLED models now have this pass-through option, which is excellent.

It was for this reason (and a few others), that I also purchased the LG C9 TV, ...that, plus the fact it has the faster HDMI-eARC Ports.

See Table for Port comparison and note the maximum audio bandwidth and mandatory lip-sync correction requirement ...

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