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I have gen 2 beam connected to hdmi 3 arc on Sony Bravia xbr55x900f that’s connected to fibe op 4k receiver. 
Sonos app shows input is PCM Stereo and can’t change when watching tv. Tv is smart and playing Netflix 5.1 movie Sonos app shows same. 
 

how do I get better audio than pcm from tv receiver?

Hello ​@Cstockley, welcome to the Sonos Community!

Sonos app shows input is PCM Stereo and can’t change when watching tv. Tv is smart and playing Netflix 5.1 movie Sonos app shows same. 

The above makes me think it’s a limitation of your TV receiver, is it possible to adjust any settings on that? The Sonos Beam (Gen 2) simply plays the audio its receiving from your TV.

It is also definitely possible that the content playing on the TV receiver is Stereo PCM.


I’ve ‘watched’ shows that were broadcast in a Dolby Digital format (and showing so in the Sonos controller) but only two channels were in use, despite the carrier being more. Make sure of the content you’re watching. It’s one of the reasons I always try to recommend a ‘Hollywood Blockbuster’ style movie, rather than a TV show. 


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