I just got my regular Deezer family plan upgraded to the new Family Hifi plan they offer. So… I have an issue within the Sonos S2 App. It seems that the songs the app pulls from Deezer service aren’t played in FLAC format but in Mp3 only.
When I play a song within Deezer app, everything plays back just fine in HiFi format. But as soon as I use the Sonos S2 app, I’m getting Mp3 audio only.
It appears (by reading the Deezer community) that multiple users are experiencing this issue as well.
My audio quality settings in Deezer are all set to Custom / HiFi for everything (including streaming) and my compression settings in the S2 app are set to uncompressed.
Below are screenshots of the same song, both playing in the Deezer app and S2 App.