View Full Version : Closed Captions

09-15-2003, 12:08 PM
Anyway to get Closed Captions in a Video?

09-15-2003, 02:36 PM
There currently are no provisions for providing closed caption information in the VT's output .

09-16-2003, 09:42 AM
Thanks...Know of any Third Party Programs?

What I basically want to do is put closed captions on to an avi that I am going to put to a DVD but it has got to be optional and not always on.

Thanks Again.

09-16-2003, 08:33 PM
CCaption (http://www.ccaption.com)

09-16-2003, 08:41 PM
Line 21 close captioning is its own seperate process.
Unless you have Scenarist, Spruce Maestro or Sonic Creator/Fusion you will not be able to put closed captioning
on your disc as these are the only authoring softwares that support line 21 closed captioning.
These programs are able to import the cc file and mux it
in to the data user area of the mpeg2 stream.

You will have to use subtitles and support for that is
limited in lower end authoring software too.

CPC makes captioning software and can provide you
with a closed caption DVD. (at a price)

Or I could do it for you.

09-16-2003, 08:43 PM
CCaption will insert captions into a DV avi file
but it will be lost in the mpeg2 encoding process.
It wil create a seperate cc file that can then be used in the authoring software I mentioned.

Mpeg2 does not support closed captioning directly.
CCaption's feature list is a bit confusing.
But it is nice software and was bought out by CPC.

09-17-2003, 06:36 AM
I'm new... what does line 21 mean exactly?

This would help.

Thanks for all the posts so far they have helped a lot.

09-17-2003, 06:41 AM
How hard do you guys think it would be to make my own TGAs in PSP or something with the caption words and then adding them into VT-Edit?

About a 9 min vid with maybe 7 or 8 minutes of acually talking.

I think I could do this.

Do you guys see an obvious problem with my Idea?

09-17-2003, 06:44 AM
Wow, look at me I am answering my own questions!

I just realized that If I did it this way that I would not be able to turn the option on or off on the DVD unless I created two seperate video files.

Unless there is a way to do a video overlay on a DVD.

09-17-2003, 06:45 AM
I have one word for you......Tedious

09-17-2003, 07:09 AM
Really Tedious?

I guess I'm thinking I can conquer the world or something....


Oh well, maybe I just won't do closed captions.....

Will the AVI file work if I just record it out to a VHS through toaster?


CCaption will insert captions into a DV avi file

Im at this page (http://www.cpcweb.com/Captioning/cap_software_post-production.htm) and I'm looking over on the right side of the page and I see prices.....Which one do I need to buy?

There is never any free stuff anymore, what is the world coming to.

09-17-2003, 07:59 AM
Line 21 of the video signal is where the caption information
is. It is the last line of video in the vertical interval before
active picture line. Basically it is the black bar above and below
the video. If you have ever adjusted the vertical hold so your
picture rolls you have seen the vertical intreval.
SAP audio, closed caption and time code information are typical of what is contianed in these lines.
Mpeg2 only contains the active picture lines.

To put captions on DVD your authoring software must support
Basically you import your closed caption text file that CCaption or
some other captioning software creates The authoring software will mux it into the user data area of the DVD where
it will be put back into the video stream on playback and
then decoded back to captions.

This is a totally different process than subtitles, which are actually
bit map images that are contained on the DVD and displayed when you turn subtitling on. They take up a lot more space than the small caption text file.