The tvOS 18.5 update that Apple released yesterday adds support for synchronizing Dolby Atmos playback to speakers over AirPlay or Bluetooth, according to Apple’s release notes for the update.
The feature could help address some persistent syncing issue that some Apple TV users have encountered when trying to play audio with Dolby Atmos. There are multiple complaints on Reddit and the Apple Support forums about Dolby Atmos audio syncing issues with sound bars and speakers, including those connected via AirPlay and Bluetooth, such as the HomePod.
Read more at MacRumors.com