thread: Japanese Govt. announce 7680 x 4320 HD 22.2 ch sound broadcast standard!
View Single Post
Old 16-01-2008, 10:29 AM   #8
thegeby thegeby is offline
Member
Join Date: Dec 2004
Experience Points:
2,953, Level: 12
Points: 2,953, Level: 12 Points: 2,953, Level: 12 Points: 2,953, Level: 12
Activity: 0.3%
Activity: 0.3% Activity: 0.3% Activity: 0.3%
Thanks: Gave 8, Got 18
Posts: 188
Re: Japanese Govt. announce 7680 x 4320 HD 22.2 ch sound broadcast standard!
Quote:
Originally Posted by Stephen Neal View Post

ISTR that it needs around 22Gbps for uncompressed picture carriage (around 1000 times the data rate used for compressed BluRay) - and will probably need to use 60-70GHz satellite technology for broadcast?
This would translate into around 480Mb/s for transmission at 50fps, if you take BBC HD 15 Mb/s as a current benchmark. Quite apart from the issue that this would obviously preclude terrestrial distribution, it would seem to be at the limit of cable technologies (Coax, USB, even gigabit lan) or UWB. Do we have any idea of how it would move from reception point to the decoder, which as Stephen notes is outputting 22 Gb/s and would probably have to be integrated in the display?
  Quote