[opendtv] Re: The old 720p/1080i argument again
- From: "David Keeble" <david.keeble@xxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Tue, 3 Aug 2004 08:11:43 -0400
Apart from any damage introduced by format conversion, broadcasters' biggest
worry is probably overcompression of their HD signals using statmuxes in the
cable head-end. Judging by the appalling quality of a lot of SD digital
signals on my local cable system (which make me long for analog) they have
plenty to worry about.
Those consumers who are image-quality-conscious (almost all current HD
owners) will avoid low-quality signals. And of course, these manipulations
could be used to make one signal preferable to another. And once the format
conversion has taken place, can you compare the data-rate of the
passed-through signal to the original, to see what else has been done to it?
David Keeble
> on 7/30/04 15:58, Manfredi, Albert E at albert.e.manfredi@xxxxxxxxxx
wrote:
>
> > But I was referring to the *broadcasters*, and their
> > insistance that HD be carried on cable systems as HD. Do
> > they care, whether it's 1080i or 720p? Or is this just
> > a pretext to create a problem with must-carry when no
> > problem should exist?
>
> The broadcasters may be concerned that the cable systems will ruin the
> quality of their video by recoding it. I can't say that I blame them. Many
> cable systems have a well deserved reputation for sloppy engineering and
> operations.
>
>
>
>
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