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  1. #1

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    Default iMovie HD - Sound out of sync...

    Hi Guys,

    I just bought my first videocamera (Sony HDR-HC9 --> High Definition miniDV).

    While importing the footage into iMovie HD (6.0.3) on my MacBookPro (OS X 10.4.11 - 2GB ram), all looks fine...

    But once fully imported and playing it back, the sound (voices) is deformed.

    When I then drag the clip into the timeline and change the pitch of the sound to make it sound normal again, the voices go out of sync with the video.

    What's happening ??

    Any suggestions ?

    (I already erased my entire HD, did a complete clean OS install, but that didn't make any difference...)

    Thanks !
    Cien
    Just when the caterpillar thought the world was ending, she turned into a butterfly...
    iMac 27", MacBookPro 17" & Dual G4, iPhone4

  2. #2
    leon's Avatar leon is offline That TAM guy

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    Try right clicking on your clips and there should be an option to revert clips back to original length. I can't remember what it exactly is as I haven't done this since January, but it fixed the sound sync/deformed issues I was having.
    Something about Jimby.

  3. #3

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    Hi Leon,

    The option "Revert back to original" is greyed out in every stage.
    (before as well as after changing the pitch)

    Cheers,
    Cien
    Just when the caterpillar thought the world was ending, she turned into a butterfly...
    iMac 27", MacBookPro 17" & Dual G4, iPhone4

  4. #4

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    After changing the pitch, I can actually get it fairly right by dragging the end of the clip in the timeline until the voice sort of matches the video again,
    but that's really repairing it, while it shouldn't have gone pear-shaped from the start...

    ... what I need to find out is what goes wrong after the importing has finished ??

    Cien
    Just when the caterpillar thought the world was ending, she turned into a butterfly...
    iMac 27", MacBookPro 17" & Dual G4, iPhone4

  5. #5

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    Any suggestions... ??
    Just when the caterpillar thought the world was ending, she turned into a butterfly...
    iMac 27", MacBookPro 17" & Dual G4, iPhone4

  6. #6
    adamd's Avatar adamd is offline BAM and the dirt is gone.

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    Make sure your settings say that you're working on PAL not NTSC.
    adamd
    iMac, MacBook Pro, MacBook, iPhone 3G, iPhone 3GS, iPod nano, iPod Touch, iPod mini, G3+G4 iMac, G4 PowerMac

  7. #7
    g5agogo is offline MacTalk Podcaster

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    check what audio options you have selected in your camera. it sounds like something in camera is your problem to me.

  8. #8

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    It has always happened in iMovie. I just put it down to problems with the transport mechanism between the computer and camera. One can't keep up with the other. As I've also changed cameras over the years I've noticed with my latest camera, a Canon, it rarely happens compared with my old Sony camera. But then versions of iMovie have changed and hardware too.

    Before you burn back to tape / send to iDVD / whatever make sure your project is totally in synch. Even if you've just newly reopened the project prior to exporting. You'll be surprised what gremlins await you and it's real nasty to discover years later when playing a tape / DVD that the sound is out of whack. Ouch!

  9. #9

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    Hi guys -- thanks for the responses so far...

    Adam: according to the manual, iMovieHD automatically recognises whether the video-feed is PAL or NTSC.
    (and I can seem to find an option to change it neither...?)

    g5agogo: The audio on the camera is selectable between 12bit and 16bit, but all High Definition footage is shot at 16bit (not changeable)

    Lilith: are you saying there is no solution -- and I have to correct it when editing ?

    -----

    Also: NOT ALL clips have deformed sound -- when I import a tape containing several footage-sessions, some audio is okay, and some are not...

    Cheers,
    Cien
    Just when the caterpillar thought the world was ending, she turned into a butterfly...
    iMac 27", MacBookPro 17" & Dual G4, iPhone4

  10. #10

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    iMovie doesn't lock the audio to the video - it's an old, old problem

    either you import in short segments so the sound doesn't get too far out of sync

    or you buy Final Cut Express - it does lock the audio to the video

  11. #11
    g5agogo is offline MacTalk Podcaster

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    It may have always happened for Lilith but it has never happened to me, although I probably only do about 10 approximately 15 minute iMovie projects a year and about the same number of longer FCP projects. This is true for a number of cameras I've used, including canon and sony, although admittedly I only use iMovie in DV. I use Final Cut for HDV, by habit, rather than necessity. The

    You should know that, if your project is more than about an 60 minutes, there have often been issues with iMovie that Apple have seemed disinclined to fix. How long is your project?

    If your import is shorter then the problem is more likely to be the bit rate or bit depth of the audio recorded in your movie versus that expected by iMovie. Check the bit rate and bit depth on your camera.

    Also, you cannot successfully mix and match clips from different sources in iMovie. If you have a number of different sources for your project, you really need to render them all out to a consistent format before incorporating them in your project.

  12. #12
    Lachie's Avatar Lachie is offline Hating Twitter

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    get FCE
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  13. #13
    uncyherb's Avatar uncyherb is offline MacTalk Podcaster

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    What format are you shooting on in the camera?
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  14. #14

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    Quote Originally Posted by Rant View Post
    iMovie doesn't lock the audio to the video - it's an old, old problem
    either you import in short segments so the sound doesn't get too far out of sync
    or you buy Final Cut Express - it does lock the audio to the video
    Thanks Rant, good to know FCE would solve my problem if worst comes to worst...


    Quote Originally Posted by g5agogo View Post
    You should know that, if your project is more than about an 60 minutes, there have often been issues with iMovie that Apple have seemed disinclined to fix. How long is your project?
    The whole project is longer (about 90 mins), but is imported in separate bits varying between 2 and 18 mins)...

    ... what are those issues iMovie has with projects longer than 60 mins ??


    Quote Originally Posted by g5agogo View Post
    If your import is shorter then the problem is more likely to be the bit rate or bit depth of the audio recorded in your movie versus that expected by iMovie. Check the bit rate and bit depth on your camera.
    Not sure if it's what you're after but I'm shooting in "HDV 1080i" and audio at 16bit.


    Quote Originally Posted by g5agogo View Post
    Also, you cannot successfully mix and match clips from different sources in iMovie. If you have a number of different sources for your project, you really need to render them all out to a consistent format before incorporating them in your project.
    All video footage comes from the same camera, but I'm planning to include (still) photo's in between (jpegs) -- will that pose a problem ?


    Quote Originally Posted by uncyherb View Post
    What format are you shooting on in the camera?
    HDV 1080i -- audio at 16bit


    Thanks again guys -- appreciate all help!
    Cien
    Just when the caterpillar thought the world was ending, she turned into a butterfly...
    iMac 27", MacBookPro 17" & Dual G4, iPhone4

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