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Sound lag with Atmos content (alien.top)

submitted 11 months ago by [email protected] to c/[email protected]

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Have an Apple TV 4K (current gen Ethernet model) connected to a Samsung QN90B which is in turn connected to home theatre AV via HDMI ARC. When I enable Atmos via the TV menu, there is a lag in the sound of ~1 second which is unbearable. I thought it was the AV at first but even if I direct the sound out of the TV speakers the same lag persists. If I use the TV’s built-in apps there is no lag. If I disable Atmos there is no lag. Anyone know how to get rid of this lag so that I can enjoy Atmos via the Apple TV?

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[–] [email protected] 1 points 11 months ago (1 children)

Are you connected by ARC or eARC?

You can try adjusting the Digital Output Delay settings.

https://www.rtings.com/tv/reviews/samsung/qn90b-qled/settings#arc/earc

[–] [email protected] 1 points 11 months ago

The amp can do eARC, but when I enable it there is no sound from any of the TVs built-in apps. It’s really frustrating.