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Lip Sync issue on Dolby Atmos with Xbox One X and Samsung HW-Q90R soundbar over HDMI ARC

Hi guys

I need your help as this is driving me crazy at the moment :D

I have a Lip Sync issue with my Xbox one X configured in Atmos and my Sasmung HW-Q90R soundbar, both connected via HDMI ARC (with LG 65C9 tv)

So my set up :
- LG 65C9 Oled TV with HDMI 2.1 and eARC
- Samsung HW-Q90R soundbar with Atmos decode, HDMI 2.0a
- Xbox One X

So I connected the soundbar to the TV via HDMI ARC (many websites mention there is eARC enable on this soundbar made available via a firmware update, mentioned by ThechRadar or Digital Trends), and Xbox One X is connected to the TV directly to leverage HDMI 2.1 features such as ALLm or VRR.

For the soundbar eARC, I've done many tests with apps directly on TV and I don't think eARC is really enable. Only Netflix can send Atmos to the soundbar (soundbar display the logo) but it's compressed DD+ Atmos, not a DD True HD Atmos.
With the LG tv configured to digital audio output on passthrough mode, when connecteing the Xbox One X also configured to out "Dolby Atmos for Home Theater" I also receive Atmos sound on the soundbar (logo being displayed on it) but I have a sync issue as I have a huge delay on audio !
And absolutely impossible to correct this delay through TV settings (AV sync) nor soundbar setting (SYNC).

But if I change the audio output from Xbox One X to Dolby Digital, then the sync issue disappear !

So my guess is that the Atmos audio can't be delivered properly from Xbox to soundbar through TV as this is not real eARC. Anyone else having this issue ? any possible fix existing ?
Or should we simply wait for Samsung to make the eARC update available as they promised ? knowing that Samsung UK just confirmed to a journalist I contacted on Twitter this eARC update is coming this November 2019...but will this really solve my Lip Sync issue ?

Thanks !

Hi there Suisso, 

Thanks for reaching out here in Xbox Forums. I understand there are some inquiries about Dolby Atmos on Xbox One S. I recommend to check out the following articles for more information about sound settings on Xbox One:

If the issues persists, I recommend to try contacting Dolby Atmos Customer support for more assistance.

Give this a try and let us know the results.

Thanks for being a part of the Xbox Family.
Happy Gaming! ಠ‿ಠ

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Hello

Thanks for your help but it didn't help.

So used the contact form from Dolby Atmos customer support, hopefully they'll be able to help or at least confirm if it's an ARC / eARC issue.

Thank you

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Last updated January 13, 2024 Views 1,329 Applies to: