[opendtv] Re: 1080p @ 60 is Next?
- From: Craig Birkmaier <craig@xxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Thu, 17 May 2007 12:01:43 -0400
At 2:08 AM +0200 5/16/07, Olivier Houot wrote:
Yes, but the pipes are getting a little fatter
(we may get 30 Mbps or more with DVB-T2), and
satellites have even higher potential
bandwidths.
And what makes you think that this extra
bandwidth will be used to satisfy the needs of a
tiny fraction of the marketplace?
The use of bandwidth in any distribution system
is an economic, NOT a quality decision. Unless
you can show us how the very small percentage of
consumers who own displays that can actually
resolve any increased resolution in a 1080P
encoding
And the new codecs are only at the beginning of their improvement curve.
So why restrict us to the lower figure ? The
1080 format is designed to be close to the eye
resolution limit under a 30 ° angle which means
we should be able to perceive the increased
sharpness.
Because 98% of the marktt will use display
technology at the lower figures, and the content
will look as good or better on the small number
of really big screens because the distribution
pipes are NOT going to be used to satisfy the
needs of a few percent of the audience.
I am all for a flexible system that could span
all the way from a single H.264 1080p using the
full 30 Mbps (should make for a nice picture, on
a par with HD-DVD or Blu-Ray) down to CIF format
(352x288) in a 250 kbps BPSK modulated signal
with ultimate error correction codes to punch
through the geomagnetic storm of the
century...(though i suspect little money would
be invested to get ready for this particular
case :-)
We've already been through that of course, but
the price of the electronics to do this have
further decreased since the last time.
I've watched Blu-Ray. The extra detail is only
useful for VERY LARGE SCREENS. On a 40-50 inch
screen there is little extra detail when compared
with standard DVD.
There will be ways to deliver higher quality
images to videophiles. DTV is NOT one of those
ways.
Regards
Craig
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