I am able to get Dolby Atmos sound when watching shows on Apple TV+ and Disney+, but not when streaming from Amazon Prime Video or HBO Max. I am only getting Dolby Digital Plus (DD+) 5.1 with those two services, despite that the content has the Dolby Atmos badge under the title screen.
My system is as follows:
Surround sound: Sonos Beam (gen 2) paired with a sub mini and two Era 100s (as surrounds). This is plugged into the eARC hdmi port.
TV: Sony Bravia - XR X90L (2023)
Streaming Device: Apple TV 4k (3rd generation). This is plugged into 4k/120hz hdmi 2.1 port
I’ve tried playing around with some audio setting on both the ATV and the TV, but so far, I can’t get HBO nor Amazon to play Atmos, yet Disney and Apple TV+ don’t have an issue. I will also say that I tested the native Amazon app on the Sony platform, and that also only gives DD+ 5.1. My Netflix subscription doesn’t support Atmos, so I can’t test that application.
Any thoughts or advice would be greatly appreciated.