Sound and image out of sync on Apple TV 4K (App Blue-TV)

For the sake of simplification, I am about to abandon my Swisscom TV box in favor of the blue-TV app on Apple TV, but I have the impression that the sound is not quite synchronous with the picture. It’s probably milliseconds, but the lag is noticeable, and once you notice it you can’t ignore it.

Does anyone else notice the same thing?

I’m using the latest version of the app and the latest model of Apple TV 4K with an Apple-certified HDMI cable and I don’t notice any desynchronization with other apps I use on Apple TV.

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Hello @david-roessli,

I have just watched two French-speaking channels (not dubbed obviously!) live for one and recorded for the other without noticing the gap you are talking about. I have the penultimate Apple TV 4K box and the latest version of the blue tv app.

But I don’t have a soundbar or anything else that could cause this slight delay you’re seeing.

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Cordialement, Prelude

THANKS. I encounter this problem mainly with shows like television news, less in films.

I’ll try disconnecting the soundbar again to test.

What bugs me is that I only observe this problem with the blue TV app.

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Thank you, my HDMI cable passes all the tests (there is no cable included with the Apple TV, I did not buy it from Swisscom) and I believe it is the Belkin recommended by Apple .

The Apple TV is connected by Ethernet to the router.

I keep digging…

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