[opendtv] Re: Qualcomm on Channel 55
- From: "John Willkie" <JohnWillkie@xxxxxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Tue, 21 Jun 2005 20:49:18 -0700
Adopting AVC (or VC-1, I presume) is the same as changing modulation? Only
to an integrated receiver, perhaps.
John Willkie
----- Original Message -----
From: "Bob Miller" <bob@xxxxxxxxxx>
To: <opendtv@xxxxxxxxxxxxx>
Sent: Tuesday, June 21, 2005 5:30 PM
Subject: [opendtv] Re: Qualcomm on Channel 55
> Manfredi, Albert E wrote:
>
> >Bob Miller wrote:
> >
> >
> >
> >>>And there's nothing stopping adoption of AVC in ATSC anyway.
> >>>
> >>>
> >>To do so would make all current receivers obsolete however.
> >>
> >>
> >
> >So what makes this different, Bob? The same holds for *any other*
distribution standard.
> >
> >
> You say that we could adopt AVC as if there were no other cost involved.
> But to adopt AVC is the same as changing modulations so if we change
> codecs we should reconsider everything. And I think we should change
codecs.
>
> >With ATSC, at least, we can already receive HDTV, even without a new
codec. Same goes for Aussie DVB-T. But in Europe, no way to receive HDTV
unless you buy new equipment.
> >
> >
> Since we can receive HDTV no reason to change codecs. OK. No problem if
> you think that HD is what will save OTA. In fact, so far, HD has had no
> affect on the OTA DTV transition. Few people are buying OTA receivers to
> get HD. They are buying HDTV sets and using cable or satellite or just
> waiting till there is enough content on cable or satellite. Few are
> leaving the store with OTA receivers. No discernible affect.
>
> In any country that has already made a choice and gone down a path then
> yes there are consequences if they then change. But France will use
> MPEG4 AVC for subscription OTA and HD. No problem if you haven't
> implemented yet or if you are not too far down the path. I think the US
> still could should change.
>
> >But wherever you are, introducing AVC will obsolete equipment. You can of
course run parallel streams, which is a wasteful kludge, but a pragmatic
solution.
> >
> >
>
> Not if you haven't done anything yet. Lots of countries haven't.
>
> >There will be codecs beyond AVC, and the process will repeat. Same-o
same-o no matter what standard you're using at the time.
> >
> >
>
> Not same o IMO. We for instance have determined that their is no
> business plan for MPEG2 while there is one for MPEG4 AVC. You may
> disagree but there is a cut off point where not enough content per
> physical channel will doom any OTA venture. We think that cut off point
> is above MPEG2 and we think MPEG4 AVC will offer enough. We could be
> wrong. Maybe we should wait another 10 years for the next codec.
>
> One way over some period of time is to use an Equator type solution
> where you may insure yourself that you can take advantage of improved
> codecs and stay competitive. Broadcasters are already non competitive
> with cable and satellite and are now saddled with MPEG2 while their
> competitors upgrade to MPEG4 AVC.
>
> Bob Miller
>
> >Bert
> >
>
>
>
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