I have seen this issues in many forums where Sonos ARC is not able to play Dolby Atmos content from Apple TV (3rd Gen) or other devices like roku, xbox etc. Not that there is a sizable population struggling to find a solution this problem. Has anyone been able to get any resilution ?
My Setup: Apple 4K → Epson 1100S (HDMI In) → Epson eArc Out → Sonos eArc In
AppleTV Setup: Video HDR10+, Audio Dolby Atmos (Or No HDR)
Issue: Sound Skips to almost NO sound
High Quality ethernet enabled HDMI cables (24Gbps) used for all connections
I have been waiting for 5 months now to find some resolution. We paid for Dolby Atmos would like to get 100% out of our cost.
This seems to be some cheating on SOnos side that they are not addressing the issue.