Sonos Arc Ultra not playing Atmos

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I recently purchased the Sonos Arc ultra. It doesn't seem to be playing Dolby Atmos. The Sonos app shows Dolby Digital Plus 5.1.

The soundbar is connected to HDMI eArc on Sony Bravia XR55A80K. Sound & Audio output settings are all ok

The content being played on the TV shows 4K Dolby Vision. I've configured Truplay as well.

Same content on my Bose SOUNDBAR SB700 gives good surround effects.

What could be missing? Or is it a bug in Sonos app or firmware

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kdowlingAnswer

Thank you for your inputs. Cross checked against mine.

Dolby Digital Plus Output = Dolby Digital Plus (this was Dolby Digital). Not sure how & when this one changed, but have got it back to Dolby Digital Plus

That was the one. Glad we could help!

jgatie

What is the content, and from what app/source are you playing it? Not all Dolby Vision (a video standard) content is Dolby Atmos (an audio standard).

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MoPac

Headliner III

Do you have either Apple Music or Amazon Music Unlimited? If so does Dolby Atmos music show as Dolby Atmos on the Now Playing screen?

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K

KuiAuthor

Contributor I

Thanks Jgatie & MoPac.

The content is Grand Turismo from both Netflix and Sony Pictures Core. On Sony Pictures Core, it clearly shows Dolby Atmos on the TV, but like I said earlier, on the Sonos app it shows Dolby Digital Plus 5.1.

As per your suggestion, tried with Amazon music, and I can see Dolby Atmos in now playing on the Sonos app.

Does this mean it's something to do with how my Sony TV is sending the audio track to the soundbar?

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nik9669a

Senior Virtuoso

Thanks Jgatie & MoPac.

The content is Grand Turismo from both Netflix and Sony Pictures Core. On Sony Pictures Core, it clearly shows Dolby Atmos on the TV, but like I said earlier, on the Sonos app it shows Dolby Digital Plus 5.1.

As per your suggestion, tried with Amazon music, and I can see Dolby Atmos in now playing on the Sonos app.

Does this mean it's something to do with how my Sony TV is sending the audio track to the soundbar?

I’d say: Yes. Sonos devices can only play what they receive.

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