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Re: Exchange media: DVC-Pro or DV-Cam?
- To: "TiG" <telecine at sun.alegria.com>
- Subject: Re: Exchange media: DVC-Pro or DV-Cam?
- From: jpb <aaton.jp at alpes-net.fr>
- Date: Tue, 21 Oct 97 21:56:36 -0000
- Resent-Date: Tue, 21 Oct 1997 12:53:46 -0700
- Resent-From: telecine at sun.alegria.com
- Resent-Message-ID: <"Ehx33.A.cFD.wgQT0" at sun>
- Resent-Sender: Rob Lingelbach <rob at sun.alegria.com>
- Resent-To: multiple recipients of <telecine at sun.alegria.com>
Said John Bowring 21/10/97 15:42 :-
> The 'crystal ball' is in hyperdrive with all the confusion over
> tape formats! Sony alone at last count is offering something
> like 8 different mostly non compatible tape formats. [..]
> But JPB may be interested in the new little DVCPRO 230 series
> recorder/player. It's about the same size as a waveform monitor
> and lists for around AUD$8K. [..]
Thank you John for your well documented answer, but there is a hint:
from the data we got from the Panasonic representative here, the
current DVCPro doesn't directly record Vitc lines.
The regular 2-Line-VITC is decoded before Jpeg-ing the images, stored
as data packets, and reconstructed during playback with video frame
incrementation compensating for the image (de)compression delays.
But how to handle the various foot and frame incrementations of the
Keycode line, and the many drop or non-drop audio frame rates stored
in the AudioTC line of the 3-Line-VITC?
This eliminates the use of this VITC unfriendly format as a carrier
between telecines and NLEs since the Keycode and the AudioTC would
either disappear or be misinterpreted.
Here is the solution (!?) they propose: VITC lines -- provided they
are recorded in the image area, e.g. lines 23-24-25 in PAL -- are said
to resist their 3:1 compression (even 5:1). But WHO will accept to see
crawling white dots at the image top?
Could you now exchange your crystal ball for an X-ray machine over
Panasonic's <next-standard> folders?
++ Thanks to Biggi Klier of Munich for support of the TIG in 1997 ++
TIG subscriber count is 875 on Tue Oct 21 12:53:20 PDT 1997
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