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Frame Rate Converter and audio
HI there,
There was one other post about this in the forum which almost answered my question but not quite. Here it is:
I need to close caption something that was shot on HD, and my close captioner will only do SD. So I captured the footage into FCP at 720p 59.94, planning to use the Frame Rate Converter to change it to 29.97 (my final output is an NTSC Beta SX). However, once I run the conversion, the audio is gone. Is that normal? Should I be able to do this conversion with audio?
Failing that method, is there any way I’m going to be able to get my HD footage to downconvert to SD before I close caption it? I suppose I could output it onto an SX tape with my Kona2 card’s “Downconvert” setting and then re-capture it, but that seems a bit messy.
I’m also adding some SD graphics into the projects so I need it to be SD 29.97 for that reason as well, because my graphics don’t have enough size/resolution for HD
Any thoughts?
Thanks a lot,
Joni -
5 Replies
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[Joni Church] ” So I captured the footage into FCP at 720p 59.94, planning to use the Frame Rate Converter to change it to 29.97 (my final output is an NTSC Beta SX). However, once I run the conversion, the audio is gone. Is that normal? Should I be able to do this conversion with audio?”
Nope
the FRC will strip all of the audio except when working converting to 23.98.
the hardware FRC often does the same thing.Gary Adcock
Studio37
HD and Film Consultation
Chicago, IL USA -
Thanks Gary. I was kind of hoping I was missing something and there would be a better way. I suppose the better way would be to tell our DOP not to shoot HD when we’re captioning.
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[Joni Church] “I was kind of hoping I was missing something and there would be a better way. I suppose the better way would be to tell our DOP not to shoot HD when we’re captioning.”
why not copy and paste the audio into the timeline – the length of the clip should remain the same– only the number of frames is different.
Gary Adcock
Studio37
HD and Film Consultation
Chicago, IL USA -
Actually, I did end up doing that in the end. I’m brand-new to HD and the Varicam and all the different frame rates and conversions, so I didn’t realize that I could drop an audio clip that I had captured with a different frame rate into a 29.97 SD sequence and have it play out fine. I shouldn’t have assumed it was more complicated than it ended up being.
Thanks for the post,
Joni -
Gary, I am trying to take 720p59.94 QT footage shot at 24p and run it through the FRC to get 23.98 once it removes the duplicate frames. I am losing the audio, however. Did I read your post right? That conversions to 23.98 should keep the audio?
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