Friday, August 4, 2017

Re: [Avid-L2] ProRes QT with CC

 

I've never used the data track but have read about it on the L2.  If the nitris inserts the data track in the SDI signal that would be into the VAN line 9 IIRC, I've been told it can reside on other lines but 9 was the normal place for it, please correct me if I am wrong on this.  Ever since I lost the ability in SD to see the blipping white captioning signal at the top of the picture I have not had the need to maintain the CC in my workflows.

I recall that Avid had a preference as to whether to capture the vertical interval data or not.  If the Nitris outputs the VANC captioning would that normally  be stripped by a capture card?  I read in this thread that it use to work in FCP7 in earlier Mac OS versions.  Does this mean there is no current cards and software that would capture the VANC CC data from an SDI source?

In most of my deliveries these days it seems the networks just want the caption file and they do the inserting as part of their ingest workflow.



---In Avid-L2@yahoogroups.com, <Greg@...> wrote :

I know CC on the data track comes out in the SDI, at least on nitris.  But you'd then need a capture device that captured that into the QT track.  

(Probably not telling you anything you don't know.)

GH
________________________
Greg Huson
Secret Headquarters, Inc
Greg (at) SecretHQ.com

On Aug 3, 2017, at 14:49, Mark Spano cutandcover@... [Avid-L2] <Avid-L2@yahoogroups.com> wrote:

 

As far as I know, the only way to export from MC with closed captions is first to have them in a sequence in your Data track. Then output to MXF. I do not think there's a way to output MOV with embedded CC from any editor application reliably. I tried getting Premiere to work this way and only got reliable 601 captions embedded. 701 captions would always fail. The only reliable way I know to embed CC into an MOV is with MacCaption.

On Thu, Aug 3, 2017 at 3:04 PM, David Dodson davaldod@... [Avid-L2] <Avid-L2@yahoogroups.com> wrote:
 

I've been doing a video mixdown to ProRes HQ then exporting either SAS or as the ProRes flavor of choice. I tend to avoid the much-dreaded gamma-shift that way — although for me it's never been 100% fool-proof.

Be aware, however, that it seems that often to get the SAS to function correctly you sometimes need to duplicate the sequence, lay in the mixdown, and delete all the underlying video clips (if you haven't already). Sometimes MC gets a bit finicky about its same-as-source'ness. And this is even if you only have the mixdown track selected AND if it's sitting on top of everything else.

Not sure if this answers your question…

D


David Dodson



On Aug 3, 2017, at 11:54 AM, tcurren@... [Avid-L2] <Avid-L2@yahoogroups.com> wrote:


How are folks creating ProRs QTs with embedded CC out of Media Composer?


We used to go to tape and then capture the file in FCP7. Clients don't want the tape anymore, and newer capture cards don't work with FCP7.







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