[119780] in North American Network Operators' Group
Re: FTTH Active vs Passive
daemon@ATHENA.MIT.EDU (Chris Hills)
Tue Dec 1 16:59:11 2009
To: nanog@nanog.org
From: Chris Hills <chaz@chaz6.com>
Date: Tue, 01 Dec 2009 22:57:40 +0100
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On 01/12/09 20:06, Byron Hicks wrote:
> These were the numbers presented at an Internet2 meeting about the 4k
> testing happening between UCSD and UW. I'm not sure what compression
> algorithm they were using for the test.
http://www.bbc.co.uk/blogs/bbcinternet/2008/09/super_hi_vision.html
"The Italian broadcaster, RAI, demonstrated satellite broadcasting of
SHV at 140 Mbit/s from Turin to IBC."
Super Hi-Vision has a resolution of 4320x7860 (and also carries 22.2
channel sound). IIRC the video codec used was Dirac.
>From the Dirac website:-
"In our first experiments, we managed to get excellent picture quality
at 128Mb/s, which sounds huge but is equivalent to just 4Mb/s for HDTV."
