Upgraded TV to 4K , HD Sound lost

I just replaced my Samsung TV with a new 4K Samsung Neo 90 Model TV and the HD sound will not work. Sometimes if I go to a SD channel where the sound does work and go back then the HD sound will work. that's not a consistent behavior though.

If I unplug and replug the cdmi cable from the Apple TV the sound will work but not consistently.

Very odd and Im stumped.

I have another Samsung TV 4k lower end Model and I noticed about a sec delay before the sound started.

thanks

_R

What does “HD Sound” mean? Do you mean you get no sound at all on HD content?

HD channels are the channels exhibiting the problem.

Try using a different hdmi port on the tv. If you have a spare hdmi cable try that as well

I'll check the cable , its 8 years old, pre 4K

The issue was this the Samsung Neo q90 series have a built in sound system and the settings on the Apple TV needed to have the audio changed from Auto detect to Dolby 5:1. Working now

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