Considerable lag on a Sonos Beam when going from PCM to Dolby Digital on a 2017 Samsung TV and an Apple TV as the source. I tried both HDMI and optical adaptor.
DTS support coming to Sonos Arc, Playbar, Beam & other products - FlatpanelsHD
Meet Sonos Beam (Gen 2) | Sonos Community
Sonos Beam Dolby Digital Plus Clearance, 53% OFF | barsauvage.com
Beam does not support Dolby digital plus? : r/sonos
About my system shows audio in as 2.0 instead of 5.1 | Sonos Community
Sonos announces second-gen Beam soundbar with Dolby Atmos - The Verge