So I’ve had a longstanding issue with DTS on Sonos, where I can play DTS Blu Rays, but only if I turn off the ‘eARC’ of my TV. This is better than nothing, but frustrating as turning eARC off causes other issues with my setup.
Sonos today told me that this is due to my Blu Rays outputting a form of DTS called ‘DTS 4’ which apparently Sonos don’t support. I’ve never been aware of DTS 4, and it seems all/most Blu Rays output DTS using that.
Apparently the reason it works with eARC off is that my TV then downgrades DTS 4 to DTS, and Sonos plays it.
But I really don’t understand why this is not supported as standard if it’s the only form of DTS on Blu Rays, and why there isn’t a way to just automatically downgrade it (without turning eARC off)? Does anyone know if Sonos are likely to add support for this soon?
My setup:
TV - LG B9 OLED
Blu Ray Player - Panasonic DP-UB820
Sonos - Sonos Arc + One SLs