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DVL-Digest 656 - Postings:
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connecting FCP to UVW 1800
DVCAM tape drive
G4 staggered picture etc
Sound bit rate on VX1000
Which setting best in Promax D


connecting FCP to UVW 1800 - Adam Wilt


But, how will I input the audio and video to he computer ?
Another option, not previously suggested, is to get an analog capture card
like the Targa 2000 or the like. FCP can deal with MJPEG-compressed video just
as well as with DV.
Cheers,
Adam Wilt



DVCAM tape drive - "Perry"


Karl posted:
>Bevis, you're just missing the point. The discussion is and was not about
what the reasons are why one might choose to shoot in 16x9, but simply how
to put it on (VHS) tape to show it on a regular (4x3) TV-monitor.<
It's YOU who is missing the point(s) Karl:
1) Yeh, it's a valuable resource, but why should everybody pay for something
only a few want to use
2) A low cost solution that is built-in to a deck is likely to have poor
performance
3) A single sized letterbox is not a complete solution.
I've just letterboxed a couple of short movies in EditDV, which was
convenient (normally I'd use After Effects). OK, it took about a second a
frame, but the quality is OK and working from home gives me lotsa rendering
time! I used a slightly magnified image to give about 14:9 (and thus lost a
little on the sides). Using the PZR filter in EditDV means you can optimise
the L-R position on a shot by shot basis to ensure minimum information loss.
Perry Mitchell
Video Facilities
http://www.perrybits.co.uk/



G4 staggered picture etc - Adam Wilt


My description is that the image on the interlaced TV looks rhombus
> in shape rather than rectangular when I use FCP "print to video".
Rhomboid, you say??? That's a new one! Are you sure you haven't applied a DVE
move to the image?
> 2) G4 optimization with dedicated VIDEO volumes...
> ...However the need for it for DV seems quite small because the
> effective data rate seems well under 3-4MB sec...
DV runs about 3.6 MByte/sec, but you want about 7+ MB/sec worst-case sustained
transfer due to the bursty nature QT uses to access video data on disk. Your
SCSI setup is overkill for single stream work -- but if you add an RT-MAX
dual-stream card in the future, you might be happy to have it.
> 3) What specific extensions and control panels can I inactivate safely
> these days. Obvious ones are voice recognition/synthesis etc.. what else?
Try deactivating things, and find out. Or pick up a copy of Pogue & Schorr's
"Mac Secrets" 5th edition (6th due any day now, I'd assume), a handy little
1300-page pocket reference, ans see what they suggest. I can't say, because I
haven't bothered, because everything works fine as-is.
Cheers,
Adam Wilt



Sound bit rate on VX1000 - Adam Wilt


So if I'm understanding this, when I transfer DV content from the VX1000
> to FCP I'm getting 12 bit, 32kHz, stereo.
Yes, assuming that the content was originated on the VX1000.
> My question is if I choose 48kHz, 16bit, stereo in FCP when capturing
> from the VX1000, does it get resampled to 48kHz and the depth gets
> boosted to 16 bit (with the understanding that the quality will not
> improve)???
No, it's a straight data transfer. The data in the QT file will still be 32
kHz 12 bit audio. Indeed, you set your capture prefs to reflect this, so that
FCP doesn't get confused and try to play it back as 48 kHz data, which
sometimes results in pitch-change and sync errors.
Your project can still be 48 kHz, and when you render audio, it will be
converted then.
> I'm still a bit confuse when it comes to 16 bit and 12 bit and 32kHz and
> 48kHz. From what I understood, when recording in 12bit, 32kHz, stereo,
> DV only uses 2 channels from 4 available with these settings. So, this
> means that there are 2 empty channels available on the tape
Yes. These can be used for overdubbing using some camcorders and VCRs.
When using 48 kHz / 16 bit mode, there is only the one stereo pair, as 48/16
audio takes up more space than 32/12 audio does.
Cheers,
Adam Wilt



Which setting best in Promax D - Adam Wilt


I'm using Premiere 5.1c/OS9.04 on a G4/AGP. I'm also using Promax's
> DVToolKit. Does anyone know which is the optimal codec setting to use?
> My cross-dissolves still appear to have a brief "flash" at the end.
Overall, clamped luma/chroma gives the most accuracy, but if the "flashes" are
jumps in the levels of highlights, then full luma/clamped chroma is
recommended. As to the type 4 errors, you've got me there.
Cheers,
Adam Wilt




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


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