Apple TV loses sound when switching apps

Hello Milo,

We would like to help get this taken care of.

Set up your Apple TV and verify you follow these steps.

If you continue to have this issue make sure to Contact Apple Support

We hope this helps.

Cheers.

Check out this Apple Support Article. It states that most TVs do not support Dolby Atmos pass through to a soundbar. I believe this is the case with your Samsung TV (but you should try different HDMI ports on your TV and be sure to use an ultra high-speed HDMI cable). I believe the issue is intermittent because the Apple TV is sending different audio formats depending upon the source (sometimes Dolby Atmos, sometimes Dolby 5.1, sometimes stereo). When it sends Dolby Atmos, the Samsung TV does not process it correctly and no sounds occurs.

I solved this problem by connecting my Apple TV directly to my Samsung soundbar. Unfortunately, I don’t believe your Sonos ARC soundbar has an HDMI input for an external device.

I believe your Samsung TV doesn’t like the audio format being sent by your Apple TV. Try changing the audio output format of your Apple TV. On your Apple TV, go to Settings…Video and Audio, change the Audio Format to either Dolby Digital 5.1 or Stereo.