Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[afss_br]

Hello, I appreciate your thoughs on ways to configure JRiver and/or windows in order do accomplish the best possible signal to my projector.

I currently have windows setup as 4:4:4 12bit 23hz, so that I can fully benefit from Jrivers chroma upscaling capabilities - this works just fine for the vast majority of the movies which are 24fps. When I play the (rare) movies which are 60fps, JRiver/Windows changes the HDMI output signal to 4:4:4 8bit 60hz, so I am losing the 10bit resolution from the original UHD-HDR files.

Please, does anybody know if it would it be possible to have a different configuration for 60fps(60hz)? I would like for the system to change to 4:2:2 12bit 60hz instead of keeping 4:4:4 and reducing bit depth to 8.

[tij]

4:4:4 8bit ... is better than 4:2:2 12bit

4:2:2 delivers chroma channel (color channel) at 75% resolution ... https://en.m.wikipedia.org/wiki/Chroma_subsampling

Your 60hz source is max 8bit ... so you are not really losing anything

Pretty sure processing of video is done at high bit depth + dithering  ... before being output at lower bit depth ... just like audio ... so you are better off at 4:4:4 8bit than 4:2:2 12bit

EDIT: if 10 12 bit important to you ... get HDMI 2.1 compatible GPU and TV/Projector ... then you can do 4:4:4 at 10 and 12 bit ... even at 120fps

[afss_br]

4:4:4 8bit ... is better than 4:2:2 12bit

4:2:2 delivers chroma channel (color channel) at 75% resolution ... https://en.m.wikipedia.org/wiki/Chroma_subsampling

Your 60hz source is max 8bit ... so you are not really losing anything

Pretty sure processing of video is done at high bit depth + dithering  ... before being output at lower bit depth ... just like audio ... so you are better off at 4:4:4 8bit than 4:2:2 12bit

EDIT: if 10 12 bit important to you ... get HDMI 2.1 compatible GPU and TV/Projector ... then you can do 4:4:4 at 10 and 12 bit ... even at 120fps

Thanks for the prompt reply, indeed HDMI 2.1 would be an option - just a clarificarion, the 60hz source file could be indeed 10 bit, not 8 bit (as an example The Gemni Man UHD movie), so with my current setup I am missing some bit depth if I decide to prioritize color space (4:4:4) - I was bringing this up, as several media players (such as my zidoo Z9X) allows for a separate configuration of color space between 24hz and 60hz, thus I though JRiver could implement a similar separate configuration as well.