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tatbaird

135 posts

Master Geek


  #1574786 16-Jun-2016 07:16
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Yep, thanks for your comments. I'll maybe toss up between the HDFury and just getting a new AVR.


Masterpiece
247 posts

Master Geek


  #1575368 16-Jun-2016 21:46
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Please let me remind viewers that the defined standard for HDMI 2.0(a) is conditional; (Rec2020)

Conditional in that setting higher Hz rates limits both bit depth and subsampling.


__________8bit____10bit____12bit___16bit
4K 24Hz___RGB___RGB___ RGB___RGB
4K 25Hz___4:4:4___4:4:4___4:4:4___4:4:4
4K 30Hz_________________4:4:2
4K 50Hz___4:4:4___4:2:0___4:2:2___4:2:0
4K 60Hz___4:4:0_________ 4:2:0


Currently all BD disks are 1080p24 8Bit 4:2:0
If you have saved 1080p versions from ripped sources, these have been typically up sampled to things like 50/60hz. The extra frames are make believe.

Always keep in mind, the display will reconstruct to the Hz rate of the display, some projectors are 240Hz, some are 96Hz, some 24Hz, Panel displays are the same, most have a native and a setting to up sample frames.

Keep all this in mind when jugging settings.

With 1080p sources, it is prudent to keep sources outputting at 24Hz as this is typical Hz rate. Recorded TV is different in that it is typically 25/50Hz (NZ).
PC's typically native 60Hz.

EDID data passed from displays automatically confine you and can make PC sources difficult with video.

The basic problem for balancing systems to source material at the moment is that major aspects of the standards are still in flux, so that 1080p24/50/60 Rec709 is still the only standard for general consumers. Current displays may or may not conform with the 4k standards once they are fully ratified. At the moment manufactures are steaming ahead with their own logic defined by a frame work which can be described as a general guide line, especially HDR10.

For the question of the op, 4K at 60Hz and non HDMI 2.0, the only way forward in the future will be too split audio and video. Sources such as 4k BD players are anticipating this with dual outputs where one is defined as Audio the other video.

Some video processors, such as Lumagen split audio video into 2 paths, but they are expensive in NZ.








Me:"I'm not a robot!"

 

ET: "Maybe; you have some freewill, but you chose your path by arrangement"

 

Me "That sounds like a program with no freewill?"

 

ET: "We will catch up when you end this cycle"

 

Me: "Sounds like a 'KPI'!"

 

ET: "Did you read the terms and conditions?"

 

Me: .....

 
 
 
 


kiwijunglist
2890 posts

Uber Geek


  #1575426 16-Jun-2016 23:56
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Saved versions of blurays and bluray rips are almost always 23.976 or 24 hz (not 50/60hz). No one is interpolating (which is the correct word, not upsampling) bluray rips when saving them as would over double the file size for no gain in quality.




HTPC / Home automation (home assistant) enthusiast.


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