Contributor I

Answered

Sonos ARC > Sky Q > Lip Sync Issue

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Hi,

I have recently swapped an old 5.1 system out with the Sonos Arc. The 5.1 system had all components connected into the A/V receiver with one HDMI from the receiver to the TV (Sony Bravia KD49XE8005) and had absolutely no lip sync problems.

I’ve now set up the Arc (via ARC) and, I thought, everything was still fine. I had no lip sync issues on apple TV, PS4 and some Sky content. Sonos Arc is connected via ARC (HDMI 3 in my TV’s case) with the Apple TV, PS4 and Sky Q box connected via other HDMI inputs.

However, I have identified a very specific issue with Sky Q. When watching stereo content (i.e. non HD) I have no lip sync issues. When watching UHD Atmos content (output via DD+), there are no lip sync issues. However, when Sky Q outputs DD5.1 the audio and video go out of sync in the way that can’t be fixed (i.e. video is ahead of the audio).

I have tried a power cycle and the issue still persists. Additionally, when I set the Sky Q HDMI output to normal and it outputs in stereo the audio and video are in sync.

I really want to find a solution to this because the Arc sounds great and Atmos content is brilliant, but lip sync issues for what is likely to be the vast majority of my TV watching is a bit of a deal breaker!

Any ideas?

Thanks for your help!

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RussHill919Answer

Contributor I

I have the exact same issue with my recently purchased Philips OLED854. The Same set up with my previous Samsung Tv did not exhibit the problem at all. My only solution is to change the skyQ sound output to “normal” which kinda defeats the purpose of having a Dolby digital/Atmos sound bar. Logic suggests it has something to do with the way the tv is processing the Dolby digital signal which adds a delay. As the sound is behind the picture there are no adjustments via the tv, skyQ or the Arc that can help.

I feel your pain :(

After a ridiculous amount of research and a visit from the sky engineer, there’s nothing that fixes it. It seems to be something to do with the DD signal from Sky Q, it’s a pretty well documented problem! I even looked at returning the Arc and getting a different soundbar with multiple HDMI inputs so I can plug loads of devices directly in, but there doesn’t seem to be anything that does that and has good reviews.

What does work is plugging directly into the Arc via optical. So for now, I’ve resigned myself to an optical signal with a switch to plug everything into. There is a HDMI product called the Arcana from HDFury that will resolve the problem and allow full Atmos signals but is not available until October.

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RussHill919Author

Contributor I

Any ideas anyone? Someone mentioned that PCM resolves this issue but that only seems to give a stereo signal?

slidchapman

Lyricist II

I have the exact same issue with my recently purchased Philips OLED854. The Same set up with my previous Samsung Tv did not exhibit the problem at all. My only solution is to change the skyQ sound output to “normal” which kinda defeats the purpose of having a Dolby digital/Atmos sound bar. Logic suggests it has something to do with the way the tv is processing the Dolby digital signal which adds a delay. As the sound is behind the picture there are no adjustments via the tv, skyQ or the Arc that can help.

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RussHill919AuthorAnswer

Contributor I

I have the exact same issue with my recently purchased Philips OLED854. The Same set up with my previous Samsung Tv did not exhibit the problem at all. My only solution is to change the skyQ sound output to “normal” which kinda defeats the purpose of having a Dolby digital/Atmos sound bar. Logic suggests it has something to do with the way the tv is processing the Dolby digital signal which adds a delay. As the sound is behind the picture there are no adjustments via the tv, skyQ or the Arc that can help.

I feel your pain :(

After a ridiculous amount of research and a visit from the sky engineer, there’s nothing that fixes it. It seems to be something to do with the DD signal from Sky Q, it’s a pretty well documented problem! I even looked at returning the Arc and getting a different soundbar with multiple HDMI inputs so I can plug loads of devices directly in, but there doesn’t seem to be anything that does that and has good reviews.

What does work is plugging directly into the Arc via optical. So for now, I’ve resigned myself to an optical signal with a switch to plug everything into. There is a HDMI product called the Arcana from HDFury that will resolve the problem and allow full Atmos signals but is not available until October.

C

craigski

Local Superstar

Another option is to try a native NowTV App if your TV has one, bypass the SkyQ box.

slidchapman

Lyricist II

It is definitely an HDMI related issue as I have now also linked up using optical and no problem at all with lip sync. Grrrrrr😤

BMF

Prodigy III

Another option is to try a native NowTV App if your TV has one, bypass the SkyQ box.

Sky Q and Now TV are different products. If you subscribe to Sky Q, you don't have access to Now TV….. it is an entirely different subscription and proposition.

There was talk of a native Smart TV App for Sky Q at one point, not sure if it is still on the cards…. but would be useful if it were

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RichH3nson

Lyricist III

Hi,

which model Q boxes are you using?

1tb UHD

V1 2tb (silver bottom) without power pack on power cable

V2 2tb (silver bottom) with power pack on power cable

V3 2tb black bottom and no power pack on the power cable?

BMF

Prodigy III

V2 2TB for me.

All TV apps are fine for me

Sky Q is hit and miss, some channels worse than others.

Sky 1 HD can be pretty bad

BBC 1 HD on live broadcasts is usually iffy

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RichH3nson

Lyricist III

Thanks BMF.

does it happen just on live content or does it occur on on demand stuff too?

what tv are you using and what do you have the audio settings set to on the q box, tv?

I only seem to get it with mine when it’s been paused for around half an hour but a reboot of the tv sorts it, I’ve never noticed on live channels so much.

BMF

Prodigy III

I’ve noticed it was worse on live TV with things like News, One Show etc

Hit and miss with on demand on the Sky Q sometimes it’s fine, other times it is out.

Rebooting TV does not fix it.

I have a Samsung UE55RU7400U connected to the 2TB V2 Sky Q box, but it was still iffy with the previous Panasonic TX-50cx680b.

Sky Q is set to DD+ over HDMI and Normal for Optical

setting it to Normal for HDMI usually fixes it, but that is obviously not an acceptable solution.

weirdly the Mini, now connected to the Panasonic seems fine with a Beam.

only common item with the issue is the Main Sky Q boxes (I had a V1 before)

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