I have a 50” Roku Onn 4K tv that works fine. I just bought a sound bar/subwoofer media player that I want to use to amplify the sound of the tv. The sound bar uses composite (rca) cables (no hdmi) for audio in/out.
I cannot figure out what settings my Roku TV must be on to use the surround sound. Can someone help me with this?
You can't get true surround sound from 2 channel analog. The ancient Dolby Pro Logic process would synthesize rear channels, but virtually all streaming audio is Dolby Digital, which can't be passed via analog. You need digital audio to get the surround sound offered by modern streaming providers.
Dan Roku Stick (3600), Ultra (4640), Ultra (4670), Ultra (4800), Premiere (3920), Insignia 720p Roku TV, Sharp 4K Roku TV, Nvidia Shield, Windows 10 Pro x64 running Serviio and Plex on a wired Gigabit network.