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Is closed captioning available for rendering to PAL SD format?

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Rick Anvican
Is closed captioning available for rendering to PAL SD format?
on Jul 29, 2015 at 1:04:29 pm

Hi all,
I am just taking note of that Vegas can process and render closed captioning in video files but only for NTSC SD formats supporting heights 486-line and taller with framerate 29.97fps. I am planning to shoot in and deliver a project in PAL SD with closed captioning but it seems that Vegas does not support this format.
Can someone confirm if this is correct please? If so, is there an alternate way to get a PAL SD video with closed captioning?

Thanks in advance.


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John Rofrano
Re: Is closed captioning available for rendering to PAL SD format?
on Jul 29, 2015 at 3:27:21 pm
Last Edited By John Rofrano on Jul 29, 2015 at 3:28:22 pm

[Rick Anvican] "I am planning to shoot in and deliver a project in PAL SD with closed captioning but it seems that Vegas does not support this format."
Why do you think that Vegas Pro doesn't support PAL closed captions? If you render to MPEG-2 using the PAL Program Stream or PAL Widescreen Program Stream templates the closed captions get embedded in the file. Isn't this what you're looking for? or do they not work when sent to a broadcaster?

~jr

http://www.johnrofrano.com
http://www.vasst.com



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Rick Anvican
Re: Is closed captioning available for rendering to PAL SD format?
on Jul 29, 2015 at 11:27:01 pm

My apologies John, I meant to add that I intend to deliver this in MPEG IMX format and I wanted the closed captions to be embedded on the video stream itself, e.g. when I render to template "NTSC MPEG IMX 50" the line-21 captions are at the top of the video in the appearance of dashed white lines, similar to widescreen signalling.
I could not find in the Vegas (12) manual where PAL SD format is supported and when I did try rendering to "PAL MPEG IMX 50", there were no white dashed lines at the top of the video.


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John Rofrano
Re: Is closed captioning available for rendering to PAL SD format?
on Aug 1, 2015 at 1:32:43 pm

[Rick Anvican] "...when I render to template "NTSC MPEG IMX 50" the line-21 captions are at the top of the video in the appearance of dashed white lines,"
Where are you seeing that template? My copy of Vegas Pro 12.0 has no template by that name under MainConcept MPEG-2.

~jr

http://www.johnrofrano.com
http://www.vasst.com



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Rick Anvican
Re: Is closed captioning available for rendering to PAL SD format?
on Aug 1, 2015 at 11:35:46 pm

[John Rofrano] " [Rick Anvican] "...when I render to template "NTSC MPEG IMX 50" the line-21 captions are at the top of the video in the appearance of dashed white lines,"

Where are you seeing that template? My copy of Vegas Pro 12.0 has no template by that name under MainConcept MPEG-2."


It's a standard template from "Sony MXF(*.mxf)", I didn't mention that in my prior post, sorry.

Now that I think of it, PAL regions used Teletext for closed captioning and I don't think Sony Vegas can embed Teletext on the video in the form of dashed lines at the top of the video like line-21 captions.


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John Rofrano
Re: Is closed captioning available for rendering to PAL SD format?
on Aug 2, 2015 at 2:05:13 pm

Ah, OK. Yea I don't know if it's an NTSC vs PAL thing but the MPEG2 encoder puts CC in both NTSC and PAL program streams but I see that the MXF encoder only puts them in NTSC IMX and not PAL IMX.

I would contact Sony and see if this is a bug or working as designed because of some PAL restriction. It does seem odd that MPEG2 CC supports PAL and MXF does not.

~jr

http://www.johnrofrano.com
http://www.vasst.com



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Rick Anvican
Re: Is closed captioning available for rendering to PAL SD format?
on Aug 2, 2015 at 11:40:43 pm

[John Rofrano] "I would contact Sony and see if this is a bug or working as designed because of some PAL restriction. It does seem odd that MPEG2 CC supports PAL and MXF does not."

I have made negotiations with my client for an alternative captioning method so thanks for confirming this anyway John. Sony Vegas mentions NTSC line-21 captions in the manual which is part of the CEA-608 standard. There's line-22 captions for PAL which wasn't widely used because of limited support so I think that's why Vegas hasn't bothered with it.


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