Contributor I

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Are Sonos planning on fixing the ARC lip sync problem?

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We have the Sonos ARC connected from our TV using HDMI eARC but we have terrible lip sync issues. All audio settings on Sky Q, TV and Sonos App have been updated to try and resolve the lip sync but the only thing we can do is to set the Sky Q Audio to Normal instead of Dolby Digital Plus.

This means that we invested in the Sonos ARC to have no better sound output than we would with any cheaper soundbar. Why do we need to watch movies that have Dolby Atmos sound with Normal audio settings? Doesn’t that defeat the object of having the Sonos ARC?

Are Sonos going to fix this issue?

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Ken_GriffithsAnswer

It is on the latest firmware but I will be contacting them also to raise their awareness of this issue.

I am still a little confused as to where the lag is.

So the Sky Q sends video & audio together from the Sky Q box via HDMI.

This then arrives at the TV together.

But are we then saying the TV is failing to send the audio to the Sonos Arc at the correct time and therefore they are causing the lag? Not that the HDMI input port on the Sonos Arc is causing the delay?

Do your actual ‘built-in’ TV Apps (eg. Netflix/Amazon Prime etc.) play okay and in sync? (Not those installed on the Sky Q box).

Hi, just checked this and yes the Netflix App through the TV has no lip sync issue. But if we watch the same thing through Netflix on Sky Q there is lip sync.

But then if we watch the Same programme again from Netflix on the Sky Q but take it off HDMI Soundbar and use the TV speakers there was now lip sync.

So from process of elimination is it something to do with the TV relaying the sound to the Sonos Arc? As when it doesn’t relay the sound there is no lip sync issue.

Yes, that comparison process you have done here can often confirm it’s the TV having difficulty processing the audio received from the connected device (Sky Q) and processing the audio data out to the Receiver (Sonos Arc), particularly as there is not a lip-sync issue with in-built TV Apps, so this issue is not going to be the Arc (or it’s cable)… the HDFury Arcana device would likely resolve the matter for you, but the issue here seems to be with the TV, particularly as the Sky Q also plays fine with the internal TV speakers.

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K

Kara19840Author

Contributor I

It is on the latest firmware but I will be contacting them also to raise their awareness of this issue.

I am still a little confused as to where the lag is.

So the Sky Q sends video & audio together from the Sky Q box via HDMI.

This then arrives at the TV together.

But are we then saying the TV is failing to send the audio to the Sonos Arc at the correct time and therefore they are causing the lag? Not that the HDMI input port on the Sonos Arc is causing the delay?

Do your actual ‘built-in’ TV Apps (eg. Netflix/Amazon Prime etc.) play okay and in sync? (Not those installed on the Sky Q box).

Hi, just checked this and yes the Netflix App through the TV has no lip sync issue. But if we watch the same thing through Netflix on Sky Q there is lip sync.

But then if we watch the Same programme again from Netflix on the Sky Q but take it off HDMI Soundbar and use the TV speakers there was now lip sync.

So from process of elimination is it something to do with the TV relaying the sound to the Sonos Arc? As when it doesn’t relay the sound there is no lip sync issue.

Ken_GriffithsAnswer

It is on the latest firmware but I will be contacting them also to raise their awareness of this issue.

I am still a little confused as to where the lag is.

So the Sky Q sends video & audio together from the Sky Q box via HDMI.

This then arrives at the TV together.

But are we then saying the TV is failing to send the audio to the Sonos Arc at the correct time and therefore they are causing the lag? Not that the HDMI input port on the Sonos Arc is causing the delay?

Do your actual ‘built-in’ TV Apps (eg. Netflix/Amazon Prime etc.) play okay and in sync? (Not those installed on the Sky Q box).

Hi, just checked this and yes the Netflix App through the TV has no lip sync issue. But if we watch the same thing through Netflix on Sky Q there is lip sync.

But then if we watch the Same programme again from Netflix on the Sky Q but take it off HDMI Soundbar and use the TV speakers there was now lip sync.

So from process of elimination is it something to do with the TV relaying the sound to the Sonos Arc? As when it doesn’t relay the sound there is no lip sync issue.

Yes, that comparison process you have done here can often confirm it’s the TV having difficulty processing the audio received from the connected device (Sky Q) and processing the audio data out to the Receiver (Sonos Arc), particularly as there is not a lip-sync issue with in-built TV Apps, so this issue is not going to be the Arc (or it’s cable)… the HDFury Arcana device would likely resolve the matter for you, but the issue here seems to be with the TV, particularly as the Sky Q also plays fine with the internal TV speakers.

J

John B

@Kara19840 . I can understand you baulking at the cost of an Arcana just to sort out something you thought was a given. But there isn’t really any other solution for connected devices. For me the Arcana was well worth the money, because it means that I don’t need to buy a new TV to get eARC and Atmos. But I think I would have bought it just for the lip sync - it is the difference between several years of frustration while watching films (in particular) and several years of being perfectly happy.

But you may feel differently. I think the Arcana does some smart things with the video too, but I’ll get round to reading about that at some point!

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