Connected to my Samsung 2019 Q70R 55" TV. Sounds great. But the only issue is that I am getting a Dolby Digital 5.1 in my "About my system" and no DD+. Does Dolby Digital 5.1 means its a lossy atmos?
My TV does not have eARC just have ARC where I have connected. The Sound settings show the connection as "Receiver(HDMI)" on Expert Settings it tells "Dolby Digital".
However, if I go to Netflix I am not getting Dolby Digital Plus anywhere. I am expecting it to get atleast DD+ in Sonos.
Thanks for reaching out and congratulations on having the Sonos Arc, let me help you out.
If Arc is receiving an Atmos signal, we will display that within the Sonos App on both the "Now Playing" screen, and within the settings portion of our app. Settings > System > About my System > Sonos System Info > Audio In
Getting Dolby Atmos audio can also depend on the physical source device playing the content.
Some TVs do not support Dolby Atmos audio even if the source device (e.g. Roku Ultra) does.
In most cases, the TV will re-encode the audio to Dolby Digital 5.1.
Please check with the manufacturer of your device to see if it supports Dolby Atmos.