I’ve been using my current setup to listen to Atmos audio from both UHD Blu-Rays and streaming Atmos from Vudu (and I think Amazon Prime). However, for some reason, all of the sudden I’m only getting stereo from my Roku.
I have a Roku Premiere+, fed through an OPPO UDP-203, which sends video straight to my Vizio P-65 and audio straight to my Pioneer Elite SC-95.
Any ideas? The Oppo sends multichannel audio from UHD Blu-Rays, in both legacy and object-oriented formats, without issue. This leads me to suspect the problem is with the Roku. I double-checked the Roku settings; nothing had changed: audio is set to Auto (Dolby Digital Plus, DTS), and HDMI is set for Auto detect, although I also tried setting it to forced DD+ and DTS, as well as forced DD and DTS....but it still just outputs stereo, on all the apps I use (Vudu, Netflix, and Amazon Prime).
Additionally, I did an HDMI bandwidth check in the display settings and it’s showing my throughput as 4K HDR at 60Hz (with HDCP 2.2). And the TV shows it’s getting a 2160P HDR signal consistently, so it’s not an HDMI bandwidth issue.
Lastly, on the advice of folks on a different forum, I removed the Oppo from the chain and fed the Roku directly into my receiver, even using different high speed HDMI cables. Same result: stereo only out of the Roku.