Contributor I

Answered

Sonos beam lip sync issue

71 replies
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Setup the new beam today, no problem getting it working. Problem is with lip sync - I have a Samsung UHD 8000 series with Sky (in the UK). Beam is connected via ARC. Tried adjusting delay via the app and TV and can’t get it to sync, so really frustrating. Any ideas? Didn’t have this problem with the Playbar (connected via optical). Thanks Toby

Lip Synchronisation

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Ryan SAnswer

Retired Sonos Staff

I'd like to suggest again that you take the time to give us a call so we can look into this closer.

In the meantime, would you mind submitting a diagnostic from your Sonos system and replying back with your confirmation number while you're getting these sync issues? I'll send them up to the team to look into just in case something is being flagged there. We've seen similar issues with certain TVs not handling Dolby Digital audio quickly enough and sending it slightly delayed. If this is the case, setting to Stereo or PCM would resolve the issue, as would using an HDMI switch instead of the TV. However, this would make the CEC commands not work from Beam.

Please note what TV model you're using here, and also, how the Beam is connected to it.

Mark good posts by pressing the like button, and select the best answer on questions you've asked to help others find solutions.

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billiejoe87

Chromatic Producer I

Right the issue is fixed completely if I set sky q box to pcm or normal and not Dolby digital, using hdmi arc. Sonos customer service told me that there is no difference in the quality of the sound from DD and PCM, can anyone confirm if this is true. If PCM is worse quality than DD then I will be returning my Beam as £400 for inferior sound is a joke. Hopefully someone can put my mind at rest as I really love the beam!!! What a joke. PCM on Sonos is stereo. Dolby Digital is surround sound. Dolby Digital is far superior to PCM Stereo.

1 x Arc, 1 x Beam Gen 2, 1 x Amp, 2 x Sonos In Ceiling Speakers, 2 x Sub, 4 x Sonos Ones, 2 x Sonos Era 100, 5 x Symfonisk Lamp (Gen 2)

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Pr0d1gyNIC

Lyricist III

Right the issue is fixed completely if I set sky q box to pcm or normal and not Dolby digital, using hdmi arc. Sonos customer service told me that there is no difference in the quality of the sound from DD and PCM, can anyone confirm if this is true. If PCM is worse quality than DD then I will be returning my Beam as £400 for inferior sound is a joke. Hopefully someone can put my mind at rest as I really love the beam!!! What a joke. PCM on Sonos is stereo. Dolby Digital is surround sound. Dolby Digital is far superior to PCM Stereo.

But a Sonos Beam doesn’t play surround sound does it? With other speakers added it can form surround, but on its own it’s not, so wouldn’t it just be the same? I have no clue so looking for guidance.

Ryan S

Retired Sonos Staff

Right the issue is fixed completely if I set sky q box to pcm or normal and not Dolby digital, using hdmi arc. Sonos customer service told me that there is no difference in the quality of the sound from DD and PCM, can anyone confirm if this is true. If PCM is worse quality than DD then I will be returning my Beam as £400 for inferior sound is a joke. Hopefully someone can put my mind at rest as I really love the beam!!! What a joke. PCM on Sonos is stereo. Dolby Digital is surround sound. Dolby Digital is far superior to PCM Stereo.

But a Sonos Beam doesn’t play surround sound does it? With other speakers added it can form surround, but on its own it’s not, so wouldn’t it just be the same? I have no clue so looking for guidance.

Beam will play all surround channels, assuming there are the channels to be played. It doesn't discard any audio, but if you don't have surrounds then rear audio may not be noticed much. For most TV content, stereo will be just as good. For movies that are recorded for surround sound, Dolby Digital is a big improvement.

That said, we're looking into some trouble with Sky Q content being played on certain TVs. We've been seeing that some models aren't sending the audio through right, causing the delay. We're investigating the situation.

Mark good posts by pressing the like button, and select the best answer on questions you've asked to help others find solutions.

P

Pr0d1gyNIC

Lyricist III

Right the issue is fixed completely if I set sky q box to pcm or normal and not Dolby digital, using hdmi arc. Sonos customer service told me that there is no difference in the quality of the sound from DD and PCM, can anyone confirm if this is true. If PCM is worse quality than DD then I will be returning my Beam as £400 for inferior sound is a joke. Hopefully someone can put my mind at rest as I really love the beam!!! What a joke. PCM on Sonos is stereo. Dolby Digital is surround sound. Dolby Digital is far superior to PCM Stereo.

But a Sonos Beam doesn’t play surround sound does it? With other speakers added it can form surround, but on its own it’s not, so wouldn’t it just be the same? I have no clue so looking for guidance.

Beam will play all surround channels, assuming there are the channels to be played. It doesn't discard any audio, but if you don't have surrounds then rear audio may not be noticed much. For most TV content, stereo will be just as good. For movies that are recorded for surround sound, Dolby Digital is a big improvement.

That said, we're looking into some trouble with Sky Q content being played on certain TVs. We've been seeing that some models aren't sending the audio through right, causing the delay. We're investigating the situation.

So is this an issue that Sonos can fix with an update or will it need to be sky or even lg

LandoSD

Trending Lyricist I

Right the issue is fixed completely if I set sky q box to pcm or normal and not Dolby digital, using hdmi arc. Sonos customer service told me that there is no difference in the quality of the sound from DD and PCM, can anyone confirm if this is true. If PCM is worse quality than DD then I will be returning my Beam as £400 for inferior sound is a joke. Hopefully someone can put my mind at rest as I really love the beam!!! What a joke. PCM on Sonos is stereo. Dolby Digital is surround sound. Dolby Digital is far superior to PCM Stereo.

But a Sonos Beam doesn’t play surround sound does it? With other speakers added it can form surround, but on its own it’s not, so wouldn’t it just be the same? I have no clue so looking for guidance.

Beam will play all surround channels, assuming there are the channels to be played. It doesn't discard any audio, but if you don't have surrounds then rear audio may not be noticed much. For most TV content, stereo will be just as good. For movies that are recorded for surround sound, Dolby Digital is a big improvement.

That said, we're looking into some trouble with Sky Q content being played on certain TVs. We've been seeing that some models aren't sending the audio through right, causing the delay. We're investigating the situation.

LandoSD

Trending Lyricist I

Confused here; Ryan, are you saying I am losing sound quality by setting my Apple 4K TV to stereo as opposed to Dolby Digital? Look forward to your reply.

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Wildantics

Avid Contributor III

Confused here; Ryan, are you saying I am losing sound quality by setting my Apple 4K TV to stereo as opposed to Dolby Digital? Look forward to your reply.

So you have apple TV 4K and your experiencing audio delay? Hmmm that's interesting I have apple TV 4K the beam the sub 2 play 1s and the surround is so immersive. Sadly though my Xbox one x has audio delay in bitstream with Dolby digital selected but it's not because of the Sonos as even when I changed it to that before I set it up I was experiencing audio delay through my TV speakers.. it's just tough to figure out if it's my LG OLED B7 or the Xbox as there is multiple posts that blame both.

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Wildantics

Avid Contributor III

Confused here; Ryan, are you saying I am losing sound quality by setting my Apple 4K TV to stereo as opposed to Dolby Digital? Look forward to your reply.

So you have apple TV 4K and your experiencing audio delay? Hmmm that's interesting I have apple TV 4K the beam the sub 2 play 1s and the surround is so immersive and no delay it's perfect. Sadly though my Xbox one x has audio delay in bitstream with Dolby digital selected but it's not because of the Sonos as even when I changed it to that before I set it up I was experiencing audio delay through my TV speakers.. it's just tough to figure out if it's my LG OLED B7 or the Xbox as there is multiple posts that blame both.

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froetzgloe

Lyricist I

I have a Philips 4K TV on latest Android (8 I think) and had the same issues. Mine has a setting (options -> all options -> sound) which is called “digital audio delay” and it’s set to “on” by default. After setting it to “off” everything is in sync again, no matter what compression is used.

LandoSD

Trending Lyricist I

I have a Philips 4K TV on latest Android (8 I think) and had the same issues. Mine has a setting (options -> all options -> sound) which is called “digital audio delay” and it’s set to “on” by default. After setting it to “off” everything is in sync again, no matter what compression is used.

Thanks,
I've been trying a few options and may have come up with the solution.
My Sony XBR900E has a Sound Option called Clear Audio+ which is ON by default. I set it to OFF
On the Apple 4k TV I switched the Surround Sound setting from Best Available to Dolby Digital 5.1
These changes seem to have worked.

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