Hey Jef;
I can only help with #3. Us a decoder device, like this one:
http://www.evertz.com/products/7760CCM-HD.php
Then you can decode the caption information as open captions.
The other two, I am just not sure of.
Ed
-----Original Message-----
From: owner-ds(at)Softimage.COM [mailto:owner-ds(at)Softimage.COM] On Behalf
Of Jef Huey
Sent: Monday, October 03, 2005 11:31 AM
To: DS(at)Softimage.COM
Subject: Re: hdcam close captioning q
Hi Ed,
You are at a similar point in the education mode as I am. My question
really hones down to three things:
1. Can HDW-500 and HDW-F500 pass theVANC from machine to machine in
an HDSDI "Clone" ? If so, how does one set the machines up. I see
discussion of this with the HDW-2000 machines, not the older ones.
2. Can a DS Nitris successfully record the VANC and play it back? I
have had two totally different responses from DS Support on this. Yes
and No? What is the truth? I did find a refernce to DS being able to
do this, but that related to an Equinox system and was a very old white
paper on the web.
3. What is an easy fool proof way to check HD captioning?
The truth is out there, but I am having trouble finding it.
Thanks,
Jef
Ed Fraticelli wrote:
>This paper from Evertz may be helpful.
>
>http://www.evertz.com/resources/cc-imp-paper.pdf
>
>Basically, CC data is RECORDED in HD recorders in the VANC (Video
>Ancillary Data) area of the SDI bitstream. This area is not "visible"
>on the screen as older line-21 encoded CC is. It is just "data" and is
>passed along in subsequent recordings.
>
>Now, when this video is BROADCASTED in an ATSC DTV broadcast, this CC
>data is encoded into a special area of the ATSC bitstream, which is
>different than the SDI stream recorded on the master tape. Same data,
I
>think. Just a different packaging.
>
>I THINK this is how it works, on a technical level.
>
>The workflow is pretty much the same as when doing normal CC work. The
>master tape is fed through an encoder, which inserts the data into the
>VANC and the result is recorded on another deck. This signal is played
>through a decoder, which then displays the results.
>
>Ed at PMI
>Pittsburgh, PA
>USA
>
>
>-----Original Message-----
>From: owner-ds(at)Softimage.COM [mailto:owner-ds(at)Softimage.COM] On Behalf
>Of Keuler, Bob
>Sent: Monday, October 03, 2005 10:30 AM
>To: DS(at)Softimage.COM
>Subject: RE: hdcam close captioning q
>
>Hi Jef,
>
>All I can tell you is that we recently had a CC HD Master made. I
>watched the tape in SD through the HDCam D-Converter and did not see a
>CC Signal! Did the facility forget to CC the master? Is the HD CC
signal
>recorded in a different manner than in SD? Does the HDCam D-Converter
>board blank the Vertical Interval? Could there also be an issue going
>from HD 1080i to SD Letterbox and the captioning not working? So far,
>I'm guessing we would need to have SD versions made with CC as the CC
>would get lost in the D-Convert. I'm looking into it but I thought I'd
>just give you a heads up.
>
>Bob Keuler
>Senior Avid|DS Editor
>WLIW Productions
>450 West 33rd St. (7th Floor)
>New York, N.Y. 10001
>(212)560-8843
>keulerb(at)wliw.org
>
>
>-----Original Message-----
>From: owner-ds(at)Softimage.COM [mailto:owner-ds(at)Softimage.COM] On Behalf
>Of Jef Huey
>Sent: Monday, October 03, 2005 10:13 AM
>To: DS(at)Softimage.COM
>Subject: hdcam close captioning q
>
>
>Anybody out there with a bit of experience delivering close captioning
>on HDCam tapes?
>
>I have some workflow questions.
>
>Thanks,
>
>Jef
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