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March 17, 2025
Answered

About casting Dolby Atmos to Sonos via the Hi-Fi Cast app.

I was actually able to cast Dolby Atmos to Sonos via the Hi-Fi Cast app. But the weird thing is, the Dolby Atmos indicator doesn't show up in the "Sources" section of the Sonos app.
So my question is, when I cast Dolby Atmos to Sonos via the Hi-Fi Cast app, does it cast the Dolby Atmos audio downmixed to stereo?

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Answer
March 17, 2025

No. It is pass-through without downmixing. See this : 

 

2 replies

Airgetlam
March 17, 2025

I suspect it does. The Sonos reports what it is receiving in the controller, I’ve never heard (yet) of any system that can send an Atmos signal to Sonos. 

Bruce
Answer
March 17, 2025

No. It is pass-through without downmixing. See this :