just set up my new Arc with my Sony A1 oled tv
I have done plenty reading here about atmos/arc/earc etc
sony a1 does not have eArc which I knew !
but maybe I read too much here about this so maybe someone can clear something up for me !
set was easy and arc sounds beautiful …
now I have upgraded from a pretty old home cinema
so any upgrade would be better ..doh !!
anyway while playing a a good example of Dolby 5.1
I tried “6 underground” on Netflix, I seen that this was in Dolby atmos …so expected it to play in Dolby 5.1
while playing through the Sonos app the sound says on the app Dolby atmos !!
if I do not have an eArc on Sony a1 should this not say Dolby 5.1
Iam sure i read here that the app will play/decode only what it receives from tv
Best answer by GuitarSuperstar
HDMI eARC is not always required to get lossy Dolby Digital Plus/Dolby Atmos audio from streaming apps. Many newer TVs that are only equipped with HDMI ARC can pass through Dolby Atmos audio from the TV’s native apps like Netflix, Prime Video, and VUDU. HDMI eARC is mainly required for external media devices and to pass through lossless audio like Dolby TrueHD/Dolby Atmos and multichannel PCM.
So if my Sonos app says Iam receiving Dolby Atmos via tv to Sonos Arc ….Iam indeed ???
Yes. If you are watching a Dolby Atmos source on Netflix like 6 Underground, you are indeed listening to Dolby Atmos audio via Dolby Digital Plus.
FYI, another way to check the audio the Arc is receiving is go to Settings > System > About My System and look under the Sonos Arc information and see what it says after “Audio In:”. With Netflix, it should say “Dolby Atmos (DD+)”.