Forum Replies Created

  • Mitchell Hart

    September 23, 2010 at 2:50 am in reply to: video goes out of sync on render

    Neil,

    You are exactly right, it was a Quicktime screen recording. And what a nightmare it was. It won’t play natively in FCP or iMovie (tried that as a last hope) I ended up switching to Screenium, which worked wonderfully.

    Thanks for your comments.

    – Mitch

  • Mitchell Hart

    September 21, 2010 at 10:55 pm in reply to: video goes out of sync on render

    Thanks again for the helpful info. I repeated the steps you outlined: converting in compressor and conforming in cinema tools (rather than converting and conforming simultaneously in quicktime, but I still ended up with the same outcome: a video file of identical length (audio is the same) but the video is crunched up (read: goes by 4 times the speed). That’s where I changed the speed in FCP to ~ 25% to get my original speed. Although it seems like it would work fine, here is where I get my render or export problem and the video not syncing.

    ALAS! I used After Effects as a replacement for the speed change step in FCP, thus solving the problem. I hope that wasn’t too confusing.

    As for the 24 fps, there wasn’t a reason for it, just had other footage on the timeline already at 24, so I was trying to avoid problems. I ended up finishing in 23.98 (23.976).

    Cheers!

    Hmmmmm. For future reference, you can’t really trust the QT info window to ahow an accurate frame rate. It’s better to check it in FCP, even if the codec’s bad… which in your case, it is! I’d bet it’s 5fps.

    I’d treat this stuff like it was footage from a DSLR: use Compressor to convert the footage to ProRes 422. The converted file should also be 5fps, which you should double-check before proceeding to the next step. To get the frame rate to 24, take a COPY of the converted file into Cinema Tools and conform it to 24.

    I still haven’t figured out why you need 24. Personally, I’d conform it to 23.976, which is the NTSC film frame rate. FCP misleads people by calling it 23.98.

  • Mitchell Hart

    September 21, 2010 at 7:47 pm in reply to: video goes out of sync on render

    Hi Dave, here are the answers:

    How do you know the screen capture was originally 5 fps?
    > I checked the info in quicktime 7. It was actually more like 4.24

    What’s the horizontal and vertical resolution of the screen capture?
    > 1920 × 1080

    What was the codec used when the screen was captured?
    > H.264

    What form did the audio take when the screen was captured?
    > 24 bit 48KHz

    What was used to convert thefile from 5 to 24fps?

    >Quicktime pro 7

    Thanks for your help!

  • Mitchell Hart

    September 21, 2010 at 6:57 pm in reply to: video goes out of sync on render

    Shane,

    Thanks for your response, but it’s not 23.976, it’s actually 24. It’s been converted from a quicktime screen recording, which was originally around 5 fps. The timeline is set at 24 and the sync is WAY off, like it converted, yet still plays at 5 fps.

    Also, it’s ProRes.

  • Mitchell Hart

    September 21, 2010 at 6:52 pm in reply to: video goes out of sync on render

    Not 23.976, it’s actually 24. It’s been converted from a quicktime screen recording, which was originally around 5 fps. The timeline is set at 24 and the sync is WAY off, like it converted the footage, but still plays it at 5fps.

    Also, it’s prores in and out.

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