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Just wanted to share a bit of frustration that I've been incorrectly blaming on the AppleTV, in case anyone else is having the same issue.

Apparently, there was a botched Sonos update that causes no sound, intermittent sound, or delayed sound when watching a program in Dolby 5.1 using the Playbar. Googling "AppleTV no audio" yielded only results that eventually led to "turn off surround sound on the AppleTV and use PCM (stereo)". Saw a tweet from The Verge this morning saying I'm not alone and it's a Sonos issue with the last update. I wasn't thinking it was the Sonos, as my Xbox One did not have the issue, but it must be putting out a slightly different 5.1 stream than the AppleTV, which the Playbar finds acceptable.

I've said all kinds of nasty things to my AppleTV over the last few days. I owe it many apologies.

https://www.theverge.com/2017/8/28/16214106/sonos-playbar-audio-issue-7-4

https://en.community.sonos.com/trou...after-system-update-today-6789926/index1.html