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All of a sudden my old Playbar has stopped working with DTS encoded Blu-rays. It works fine with Dolby encoded discs and standard TV/streaming outputs but for DTS discs all I get is silence. It has worked perfectly well for years and I haven't changed any settings because I'm on the S1 app. As a test I disconnected the Playbar and everything works fine through the internal TV speakers. I'd be grateful for any suggestions that might help resolve this.

Try unplugging the TV, Playbar, and Blu-ray player from power for a couple of minutes.

What model Blu-ray player do you have?


Thank you for the suggestion but no luck there. It's a 4k Panasonic UB820. I was reluctant to dive in and mess around with the settings because, up until last night, everything worked perfectly. The TV is a Sony A8. I've tried changing the BR to TV HDMI cable but the problem is still there and, because Dolby works fine, I think that rules out the optical cable. The fact that DTS discs play ok through the TV speakers made me suspect it was the Playbar at fault but I could well be wrong. It wouldn't be the first time.


I suspect that there was a firmware update to your TV that altered the settings. There was no update to the Sonos last night. 


Thank you for the suggestion but no luck there. It's a 4k Panasonic UB820. I was reluctant to dive in and mess around with the settings because, up until last night, everything worked perfectly. The TV is a Sony A8. I've tried changing the BR to TV HDMI cable but the problem is still there and, because Dolby works fine, I think that rules out the optical cable. The fact that DTS discs play ok through the TV speakers made me suspect it was the Playbar at fault but I could well be wrong. It wouldn't be the first time.

In the player’s audio settings under Digital Audio Output, set DTS/DTS-HD to PCM.


That's worked. Thank you so much for your help. I really do appreciate it.

Do you have any idea why it should have stopped working?


That's worked. Thank you so much for your help. I really do appreciate it.

Do you have any idea why it should have stopped working?

Not sure. There may have been a firmware update or something that caused the settings to be reset to the default. Glad it is working for you now.