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A DV(L)-FAQ [e]

DVL-Digest 676 - Postings:
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Crystal Ball Gazing - HDTV roa
Pinnacle's StreamGenie


Crystal Ball Gazing - HDTV roa - "Perry"


Some random thoughts:
1) Sony's 24P HDCAM records same data rate as Digital Betacam and is still
not intra-frame
2) DV has more efficient compression algorithm than MPEG uses for I frame
I believe that if an HD recording format based upon a more efficient MPEG
type algorithm using DV tape was developed using current technology, a very
good (production) quality would result. MPEG would result in some
compromises wrt to linear editing, but BetacamSX has proven these are not
serious once understood.
I was at the Digital Media World show in London today and the Pinnacle
(Truevision) CineWave card looks pretty close for HD. Of course, to do
anything with it you need to decode it back to uncompressed and then you
need very serious HD arrays to cope with anything more than seconds, but HD
has come so far in the last couple of years that this is not a serious
problem.
FWIW
Incidentally, looks like the Matrox RTMac/Apple FCP2 combination is delayed
until the Spring, your guess is as good as mine to guess the guilty party!
:}
Perry Mitchell
Video Facilities
http://www.perrybits.co.uk/



Pinnacle's StreamGenie - Adam Wilt


You know, buying video stuff is a lot like buying oats. If you want nice,
> new, clean, pretty oats, you can expect to pay a reasonable price for
> them. If, OTOH, you can be satisfied with oats that have already been
> through a horse, those are always available a lot cheaper.
Hee, hee!
But we're not talking about preprocessed oats here, so much as the difference
between oats in the bag and oats lying in the field, not all gathered together
neatly for transportation.
There's nothing that StreamGenie does that can't be done with a laptop, an
MXProDV or WJ-MX50 switcher, and a few bits of add-on hardware and software --
not a big deal for the video geeks on this list. We can walk into a room,
string cables, rig lights, connect up the stuff, fire up the software, and
away we go.
But not all of StreamGenie's customers are video geeks. (or whatever) may
seem like a lot of money for the functionality, but the trick is that all you
need to do with StreamGenie is walk in with one box, plug it in, turn it on,
and go on-air (or on-wire, really!). You're paying for portability, small
size, and integration, the same things that drive folks to pay twice as much
for a laptop PC or Mac than for a desktop or tower version of the same
machine.
The more expensive laptop often isn't as capable: smaller screen, whacko
pointing device, poor expandability, and so on. But that's not the point, the
point is that it'll fit into a briefcase and work without a power cable.
StreamGenie meets similar needs in the traveling-webcasting market (such as it
is). You can schlep around a half-rack full of gear, plus cameras, or a
StreamGenie lunchbox, plus cameras. What's your time (and your strong back)
worth?
Now, as to what comes *out* of StreamGenie, or any other web-video compression
engine trying to put a gallon of video into a pint pot of bandwidth... now
we're talkin' used oats! ;-)




(diese posts stammen von der DV-L Mailingliste - THX to Adam Wilt and Perry Mitchell :-)


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