Apple is pushing a new software update for Apple TV today that includes a useful feature for home theater setups: the ability to automatically calibrate the synchronization of Dolby Atmos surround sound audio with your speakers.
The new tvOS 18.5 update enhances Apple’s existing Wireless Audio Sync feature, introduced in 2019, that lets you use your iPhone’s microphone to calibrate audio sources with your home theater speakers. Now it can help you get your TV video synced up with Atmos audio over either AirPlay or Bluetooth by accounting for latency.
As pointed out by MacRumors, people have complained about Apple TV Dolby Atmos syncing issues with sound bars and other speakers on Reddit and on Apple’s community discussions page, but until now they couldn’t use Apple’s tool to try to fix things.
After updating, you can calibrate your audio by going to Settings > Video and Audio > Wireless Audio Sync on your Apple TV, and following the steps from there.
