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blyle5046530550
Participant
March 7, 2019
Question

Scenarist SCC caption file timecode offset

  • March 7, 2019
  • 2 replies
  • 1966 views

I have an MXF file on a Sony XDCam disc that has captioning embedded into the file.  I'm using AME to transcode the file and also create an scenarist scc file to send to a local TV station.

The file is being created without an issue, but the timecode on the scc file is off by about 45 seconds.  In watching the original file on a Sony XDCam disc, the first captioning on screen appears at approx timecode 09:46:54;00, but the scc file created through encoder has the first timecode as 09:47:28;25. Both source and scc file at drop frame.

Does anyone have an idea why the timecode is different?

Thanks,

Brad

This topic has been closed for replies.

2 replies

Stan Jones
Community Expert
Stan JonesCommunity Expert
Community Expert
March 8, 2019

Is this correct?: You are importing a file that has an embedded closed caption stream. 608?

How are you placing it in a sequence?

What is the timecode in the sequence where the first caption starts?

Is your result the same if you "export" the file from PR rather than "queuing" to AME?

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blyle5046530550Author
Participant
March 8, 2019

The file has an embedded 608 closed caption stream.  It's a student newscast that records on campus and airs on a local TV station.  The station requires a sidecar file for captioning.  I'm not placing it in a sequence or using PR at all.  I'm using ME (CC2019) to export the original file (encoding from  MXF OP1a - XDCAM HD 35 60i to MXFOP1a - XDCAM HD 25 60i to lower the file size) and create the sidecar file. 

Stan Jones
Community Expert
Stan JonesCommunity Expert
Community Expert
March 8, 2019

Thanks. Do you have a short sample you can share?

B
blyle5046530550Author
Participant
March 8, 2019

I ran the file through some old captioning software (CaptionMaker) from 2011 and can confirm that the time code issue is with Media Encoder.  Image below shows CaptionMaker's start time for CC text is 09:46:53;18.  I'd use this software, but the dongle doesn't work with Windows 8 or 10.

I exported an scc file and a subtitle file in AME and the same file open CaptionMaker.

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