Quote:
Originally Posted by andy
All true now, but not back in the early days of HD when the standards were set. Old and new equipment had to run at the same frame rate to be compatible.
Also, how would they have broadcast HD in 60Hz, while simulcasting it in NTSC 59.94Hz? Our digital OTA adapter boxes would be a problem.
I'm curious to see what happens when you do try to generate NTSC at 60Hz. I'm guessing you end up with a lot more interaction between the chroma and luma.
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In the early days of HD I suppose there was some reason for using 59.94Hz. By the time they got to 1080/60p (uses 3GHz SDI in the studio) the production chain was all digital and largely tapeless. Hard to see any reason for 59.94.
As I've said before, there's no problem trasnmitting at 59.94Hz, even if the material was made at 60Hz. NTSC at 60Hz doesn't (or shouldn't) exist.
02-21-2018, 01:10 AM
Hybrid Mode
