I have my Apple TV on the arc HDMI port on my Samsung tv. I use 2 HomePod minis for sound. When I switch inputs on the tv many times I lose the sound and the tv is using the tv speaker. I then have to go to the Apple TV input and redo the audio setup. Any ideas why this happens?
HomePod mini, 16
Mine does that momentarily but I can use the tv to switch audio output. I don’t need to go into Apple TV Settings and fix it. It takes a bit to establish itself though. Restarting the tv seems to help. There are other settings in the tv you can adjust but I don’t know what that is on a Samsung. It would be in external inputs section. Also for Samsung: Anynet+ needs to be on.
If you can't control your Apple TV with your home theater or universal remote - Apple Support
You might also want to try removing the HDMI cable and reinserting. Or test with another cable.
It might also help to reset the HomePods and set them up again. I’ve just done that with mine after one was making a terrible noise: Reset HomePod or HomePod mini - Apple Support - ungroup if paired first before resetting.
In the ATV settings under the default audio setting you have the HomePods set up, you should see an option to enable ARC (Audio Return Channel). Enable that to On. For further troubleshooting you might need to restart both the tv and ATV. Make sure all software is updated on HomePods and ATV to 16.3.2
Thanks but that is what I do. For some reason when I change inputs on the tv from the Apple TV the sound on the tv reverts to its speaker and then I have to go back to the Apple TV a
settings and turn on arc again
I suspect your TV's settings regarding ARC usage. Perhaps they're getting reset whenever the ATV4K appears to be off (although I would think the ATV4K would remain on/awake while assuming full audio responsibility for the TV).
Samsung tv loses Apple TV arc connection when inputs are switched
