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Cinewave
CineWave
FCP previews (was: Mac G4/FCP
Old question on SCSI Vs. EIDE
[China Trip- Voltage &Wireless
Cinewave - "Perry" nospam-perry.mitchell@btinterne
Walter Miale posted:
>What is the Pinnacle Cinewave is and what does it do? Here's a clip from
the announcement of the product. What does it mean? What is the
significance of "uncompressed capabilities" for dv and fcp? What is the
significance if any of HD ability for this format?
I went to this press conference (it was at NAB) and they made a big thing of
the HiDef capability of course. As I remember it, the board would be
uncompressed for SD video but using compression to do HiDef. Uncompressed
would mean the quality was as good as D1, but would also mean pretty fast
Hard Drive systems would be required. (DV is lower quality video that is
also compressed about x5)
They mentioned a complete SD system price (including Mac and Drives) of
around ,000 and a complete HiDef system price of around ,000.
The HiDef demo they showed was a little flaky, but hey it's early days!
Like the Matrox RTMac board that was shown at the same conference, the
Cinewave would need a special version of FCP to use it. The Apple rep
stated that these versions would be available when the boards shipped. I
think they said it was likely to be in the Fall of this year.
Perry Mitchell
Video Facilities
http://www.perrybits.co.uk/
CineWave - Adam Wilt
> What is the Pinnacle Cinewave is and what does it do?
It's a Mac PCI capture card (Targa Cine) built around the Truevision HUB 3
"video CPU" chip, the same chip at the heart of the Targa 3000 on the PC side.
Add to this a bunch of software (Commotion, FCP), buy yourself a G4 to stick
it all in, and there you are:
http://www.pinnaclesys.com/frameset.asp?state=ProfessionalProduct&content=108
There's an excellent technical "Memory Centric White Paper" that describes the
board's architecture in detail:
http://www.pinnaclesys.com/frameset.asp?state=ProfessionalProduct&content=91
In short, it's the next generation TARGA card for Mac, optimized for capture
of uncompressed SDTV and HDTV format signals for editing.
A very nice product, but a wee bit more expensive than the DV25/FireWire
capability that comes free in the Mac (just add FCP, EditDV, Premiere, or
iMovie), especially when you figure in the drive arrays needed to keep up with
the HD datastream!
Cheers,
Adam Wilt
a DV FAQ: http://www.adamwilt.com/DV.html
FCP previews (was: Mac G4/FCP - Adam Wilt nospam-adamwilt@flash.net
> My preview files pile up enormously; even for a simple four minute piece
> with few effects. Everytime I preview a piece or the whole thing it
> creates a new preview file and soon I have several gigabytes of previews.
> Anyway to prevent this?
1) Never preview anything. You have the show previsualized in your head
anyway, right? Just drop the shots on the timeline, apply filters and effects
blindly, and render to tape. Ba-da-bing, ba-da-boom!
2) For the rest of us (grin), select Tools > Cache Manager... and you can
review a hierarchical listing of the cached previews. Delete the ones you know
you're done with, or just blow 'em all away and re-render what you need.
Cheers,
Adam Wilt
a DV FAQ: http://www.adamwilt.com/DV.html
Old question on SCSI Vs. EIDE - Adam Wilt nospam-adamwilt@flash.net
> It [EIDE] seems to be fine for most single-stream DV-based work,
> as DV isn't presenting a terribly huge load relative to today's drives.
> The consensus seems to be that once you get up into dual-stream realms,
> though (i.e. Canopus RexRT or Matrox DigiSuite),...
FWIW I've been running a DigiSuite DTV for a while now, doing dual-stream
realtime DV25 from a single 5400rpm IBM EIDE drive. No hiccups, no dropped
frames. The disk is Ultra-66, but my IDE controller is only Ultra-33. The
drive activity LED seems to flicker with about a 60% duty cycle, so I still
have some headroom, apparently.
As drive density increases and controllers become more sophisticated, the rpm
rating is less and less important; sustained data transfer rate is the main
figure of merit. If you specialize in hyperkinetic cuts, so that the poor
drive spends all its time seeking, then 10k vs. 7200 vs. 5400 might be more
important as the faster-spinning drives reduce the latency on seeks.
And while I'm having no problems with dual-stream DV25, both Matrox's own
drive tester and the Canopus RapTest program imply that I'd be pushing it to
try dual stream DV50 or MPEG-2 above around 40Mbits/sec. Perhaps I'll try
anyway, and report back what happens... ;-)
Cheers,
Adam "non-destructive testing? That's no fun" Wilt
a DV FAQ: http://www.adamwilt.com/DV.html
[China Trip- Voltage &Wireless - Adam Wilt nospam-adamwilt@flash.net
> I hope I have no problems with a DV camera in general in China!
Just be careful. A friend went into the hinterlands, away from the areas
normally frequented by foreign devils, to shoot doco footage of a certain
Buddhist temple. He stood on the sidewalk with his Chinese guide, pulled out a
Panasonic DX100, and next thing he knew he was on his back with two *very*
nervous 19 year old Red Guards aiming rifles at him!
It seems the building he was standing beside was the local Red Army outpost.
Several hours later after, following a somewhat tense interrogation, a
demonstration of the DX100 as a video camera and *not* a weapon, and the
drinking of much fine green tea, my friend continued on, not much the worse
for wear. He was allowed to keep the camera, though he did have to erase the
portion of tape shot in that town for national security reasons.
Cheers,
Adam Wilt
(diese posts stammen von der DV-L Mailingliste - THX to Adam Wilt and Perry Mitchell :-)
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