I currently have a Sonos HT set (Arc, 2x One SLs, Sub (Gen 3) connected to a PS4 Pro and a Samsung Q90T. So it’s PS4 Pro > Q90T > Sonos Arc HT. I borrowed some Blu-ray DVDs from a local library and noticed that they only have Dolby DTS-HD Master Audio tracks in English. However, I can only get Stereo PCM when playing the movies via the Arc.
I tried various combinations via the PS4 Pro “Sound and Screen” menu > Audio Output Settings > Audio Format (Priority) - (Linear PCM or Bitstream (Dolby or DTS)), the Pro’s Blu-ray DVD settings > Audio Format (Linear PCM or Bitstream (Direct)), as well as the Q90T’s Sound > Expert settings - HDMI-eARC mode (Off or Auto) and Digital Output Audio Format (PCM, Auto, Pass-Through) and I can’t get “surround” sound only Stereo 2.0. I researched (lurked) on these forums as well as Reddit for possible solutions, but nothing worked with the various settings I mentioned.
Only thing that comes up is possibly getting an audio extractor, but I’m less inclined to purchase one since I only borrow DVDs and Blu-rays from the library and don’t purchase them anymore.