• Apple Final Cut Pro Legacy

  Video shifting out of sync with audio in 1280 x 720 QuickTime file

  Posted by Elissa Mintz on April 2, 2009 at 10:37 pm

  Here’s my problem (and I’ve tried to research this but can’t find the answer):

  I’m working with mostly HDV 1080i60 footage in FCP 5.1.4 in an HDV timeline on a 2-minute, 22-second piece. (There’s also some DV/DVCPRO-NTSC footage in there, scaled up to fit in the timeline.)

  All the audio seems to be in sync in the timeline and in the self-contained movie created with File/Export/QuickTime Movie — but when I export to a .mov file (made with QuickTime 7.5.5 — hmmmmm) using H264 and a frame size of 1280 x 720 (trying to please YouTube here), with everything set to highest possible quality, the audio goes in and out of sync. (Actually, I think it’s the video that’s screwing up, but bear with me.)

  There are two conditions under which this seems to happen. It happens when I have text objects and matte/color objects in video tracks above the video clip, to create a lower third, and I put a cross-dissolve at the end of the lower third to get it off the screen. Right at the point of the cross-dissolve, something goes kerflooey with the video and puts it out of sync with the audio (the audio seems fine). Then video and audio re-link happily at the next cut.

  The other problem arises with the clips from one particular interview. The first clip is fine, and then all subsequent clips from that interview are out of sync (and again, I think it’s the video that’s the real culprit, not the audio).

  Is there something whacky with HDV and that frame size (1280 x 720)? This feels like a bug to me, but I don’t know enough to know that for sure.

  Oops. Just realized I’m at least one release behind where I probably should be with QuickTime — but I’ve been scared to update, having been burnt once before with a QT update.

  Any advice would be greatly appreciated.

  Elissa Mintz replied 17 years ago 2 Members · 2 Replies
• 2 Replies

• 

  Richard Potter

  April 28, 2009 at 5:05 pm

  This thread deals with similar issues – I’m having them too – and offers some workarounds:

  https://forums.creativecow.net/thread/8/964105#975407

  Rich
• 

  Elissa Mintz

  April 30, 2009 at 9:10 am

  Wow! Richard, thanks so much!!!! You’re a lifesaver!!!!!!!!!!!!!!!

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