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C
Cable Advisor24815536wdpl
Participant
November 30, 2023
Question

Premiere Pro strips out captions

  • November 30, 2023
  • 2 replies
  • 491 views

We are new to closed captions.

 

A number of our programs (public meetings, usually) have captions added while the program is being recorded - to provide captions during live-streaming or broadcasting.  These captions are embedded in the .mpg file, not put into a separate side car file).

 

When we do post using Premiere Pro (add credits, manage dead time, etc.) the captions are lost.  This forces us to caption twice (once during the programming and after post) which costs both time and money.

 

How can I get the captions to be preserved during post production?

Is this related to generating .mp4 files?  (I don't think so; I don't see any sign of a captions track in Premiere).

 

Thank you all for ideas and help.

 

Rutland (MA) Community Television

    This topic has been closed for replies.

    2 replies

    Stan Jones
    Community Expert
    Stan JonesCommunity Expert
    Community Expert
    November 30, 2023

    @Cable Advisor24815536wdpl,

     

    Edit -> Preferences -> Media -> Include Captions on Import

     

    However, my guess is it won't work, since PR won't export mpg with captions embedded and probably won't recognize them.

     

    Use a third party program to export the captions (to srt) and import to PR.

     

    If you can provide a short sample, I'll see if I can help.

     

    Stan

     

      C
      Cable Advisor24815536wdplAuthor
      Participant
      December 4, 2023

      Hi Stan,

       

      Thanks for any help you can give.

       

      I have loaded a 3 1/2 minute video (with a couple parts where I speak) on my OneDrive account: https://1drv.ms/v/s!AsVycjeYf8bHm3SzvWKCqH5wRATE?e=xzwfAU

       

      Microsoft tells me you can access this video without a microsoft login.  I hope that's true.

       

      I tried to extract the captions using FFMPEG, but that software doesn't see the subtitle track, if I'm reading the output correctly:

      Input #0, mpeg, from '1390-1-CC_Test1.mpg':
      Duration: 00:03:36.10, start: 0.000000, bitrate: 5402 kb/s
      Stream #0:0[0x1c0]: Audio: mp2, 48000 Hz, stereo, fltp, 384 kb/s
      Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, smpte170m, bottom first), 1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn
      Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 1425408 vbv_delay: N/A
      At least one output file must be specified

       

      Peter

      Stan Jones
      Community Expert
      Stan JonesCommunity Expert
      Community Expert
      December 5, 2023

      I was able to download. None of my attempts were successful. I confirm that PR does not see the captions. Nor does MediaInfo. VLC does see 4 closed caption options, but only #1 has subtitles.

       

      The discussions I found suggest that extracting from mpeg is harder than some other formats.

       

      Stan

       

       

       

       

       

      R Neil Haugen
      R Neil Haugen
      Legend
      November 30, 2023

      @Stan Jones  ... ideas?

      Everyone's mileage always varies ...
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