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Participant
June 14, 2025
Question

Starting with Closed Captioning - First attempt

  • June 14, 2025
  • 1 reply
  • 222 views

Hi,

This is my first time working with Closed Captioning. I'm a novice with this.

 

I have been doing a TV show with no captioning at all (I know...decades behind). I just got the 2025 version of Adobe Premiere Pro, and I started playing with the captioning. I noticed that for broadcast TV shows I should be using CEA-780. So, I tried my 1st episode with captioning under 780.

 

When I finished the episode, I noticed I couldn't do 780 (embedded to file) under Quicktime, but you can with CEA-680 caotioning. I know and read this is an issue with Adobe.

 

My initial question is this: should I start editing with CEA-780 captioning? Or start with CEA-680 then later convert?

 

I also noticed that there are missing words with the captioning between 680 and 780. Words getting cut off.  Not sure how to fix that.

 

I will have other questions if somebody can be patient with me.

 

Thanks. 

1 reply

Stan Jones
Community Expert
Community Expert
June 14, 2025

@rebecaz40549294,

 

Find out from the broadcaster what their requirements are. It is not uncommon for there to be requirement for both 608 and 708 captions. From Premier Pro, you can only do that with MXF OP1A format, but there is now a ProRes option.

 

Just to learn, create the captions as 608 first, do a very short edit, and export as QuickTime. Does that work? Import back to PR to test. In Preferences -> Media, set to import captions. Report back.

 

Stan

 

 

 

Participant
June 15, 2025

Hi Stan,

Thanks for your reply. Also, thank you for noticing my mistake with 680 to 608. We have freeways up here with 680 and 780. 

 

On the TV broadcasters, I'm not sure what they want at this time, since we never offered the show as CC ourselves.

 

I'm current saving the files as an Apple ProRes MXF OP1a. I noticed you can embed the CC on the ouput file.  For editing, I do my segment(s) with the CC in one project. When I ready to edit the actual episode, I do a new Premiere Pro project and insert the segment(s) with the embedded CC.    

 

On our next episode, I think I'm going to edit the project with 608 captioning first. After completing that, I think I'm going to "save as" that project and change the CC line as 708. I think the CC sizing (with the numbers of characters should stay complete and not drop characters). Therefore, I will have two project versions in 608 and 708.  Does that sound like a good plan ... for now?

 

I'm not sure how to have both 608 and 708 on the same project / timeline. Do 608 go on C1 and 708 can go on C2? I don't think you can cut and paste between CC tracks. 

 

I wish Adobe would let you embed the CC into a Quicktime with 708. 608 has no issue with embedding.

 

Thanks again for helping me out. 

 

 

Stan Jones
Community Expert
Community Expert
June 15, 2025

You can put the 608 and 708 in the same sequence. You'll have 2 caption tracks, and both will embed with no special setting.

 

The 608 will be stream CC1 and the 708 will be Service 1. There's no conflict.

 

There can be a variety of issues with embedding, so you don't know you're good until the broadcaster does their quality control.

 

Stan