Hello from the future.
I was reading a lot about LPCM and how that may be the preferred option for uncompressed signal. On my PS5 (and Series X, when I switch to LPCM the voice of the person speaking in game is gone but all other sounds are playing normally. It seems as if the center channel is muted under LPCM. Any ideas as to why this is?
I'm on an Onkyo AVR and my Consoles are connected directly to my OLED. The ARC HDMI goes to my Receiver.
Edit: I just saw on the LG C9, if you go to Sound > Additional Settings > HDMI Input Audio Format, you can change the specific HDMI Port you're using and change it to PCM. It seems to work that way and I do hear the voices normally.