The tvOS 18.5 update from Apple introduces synchronized Dolby Atmos playback for AirPlay and Bluetooth speakers.
This new feature aims to address audio syncing issues reported by some Apple TV users when using Dolby Atmos with sound bars and speakers, even over AirPlay and Bluetooth connections.
Users experiencing syncing problems with Dolby Atmos playback, where audio is slightly out of sync with the content, have found relief by switching to 5.1 surround sound.
Apple suggests accessing the new Dolby Atmos synchronization feature for AirPlay and Bluetooth speakers in Settings > Video and Audio > Wireless Audio Sync.