Originally Posted by Tom899
I was wondering if it matters what Chroma Subsampling setting in the Roku Ultra to use. 4:2:0 or 4:2:2. Either one appears to be compatible with the RSx000. I'm thinking to use 4:2:0 and let the RS1000 do its thing?
Thanks David, I've read that article and understand Chroma Subsampling. What I am hoping to understand, is which setting, 4:2:0 or 4:2:2 people are using on their Roku or ATV to feed their RSx000 projectors? Maybe it doesn't matter, as the RSx0000 will convert and do the proper thing?
Hi Tom, understand, good question.
I currently have mine set to 4:2:2 on the off chance there's some native content, and that its noticeable. JVC upscaling is good, but not the best. I played with madvr chroma upscaling some, and there was some content where it seemed it was worth the extra GPU processing. However, this was with low HDMI bandwidth 1080P content that I was upscaling.
With current HDMI specs, 4K at 60Hz is bandwidth limited. That is where the Roku setting comes into play I believe. I do not understand right now what trade offs the Roku will make if we select the slightly more bandwidth intensive option of 4:2:2. An example could be that it reduces bits from 10 to 8. For HDR content this would not be desirable, but for SDR is probably fine.
So the optimal setting kind of depends on the content until we get better HDMI. Now that you've asked question, will be more aware now when I select 4k 60Hz content lol.