[119771] in North American Network Operators' Group
Re: FTTH Active vs Passive
daemon@ATHENA.MIT.EDU (Byron Hicks)
Tue Dec 1 14:07:31 2009
In-Reply-To: <20091201185805.GF1382336@hiwaay.net>
Date: Tue, 1 Dec 2009 13:06:26 -0600
From: Byron Hicks <bhicks@ots.utsystem.edu>
To: Chris Adams <cmadams@hiwaay.net>, nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
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.
On Tue, Dec 1, 2009 at 12:58 PM, Chris Adams <cmadams@hiwaay.net> wrote:
> Once upon a time, Byron Hicks <bhicks@ots.utsystem.edu> said:
>> 4k video feeds (the new High Def):
>>
>> compressed: 1Gb/s
>
> ??
>
> Current over-the-air HD (at a max of 1080i) is up to 19 megabits per
> second (and most don't run it that high). =A0Most cable systems compress
> it more. =A04k video is roughly 8 times the pixels than 1080i, but is
> typically going to be compressed with better algorithms (MPEG4 is
> roughly half the size of MPEG2), which would mean 4k video (at TV
> quality) would be around 100 megabits per second.
>
> --
> Chris Adams <cmadams@hiwaay.net>
> Systems and Network Administrator - HiWAAY Internet Services
> I don't speak for anybody but myself - that's enough trouble.
>
>
--=20
Byron L. Hicks
University of Texas System
512-377-9857
AIM: byronhicks
