Sound is not matching my iMovie!

Discussion in 'Mac Apps and Mac App Store' started by gusanitoverde, Oct 12, 2004.

  1. gusanitoverde macrumors 6502


    Jun 12, 2003
    Northern California
    I made a discussion before about this problem.

    however, I found out that the problem didn't necesarily resided in iDVD, but every time I import my finished iMovie, to either iDVD, a DV cam or anything else, the sound gets delayed progressively. At the end of a 7 minute movie it get's really nasty. I even took my Powermac G4 Dual 1.42, OX Panther to the Aple store and the "geniouses" told me: "You are one guy with very bad luck, since you are the only one with a problem that we cannot solve." Please Help! :confused:
  2. yoda13 macrumors 65816


    Sep 26, 2003
    I used to have problems with sound not matching my video in my iMovies, however, it was never that bad. There are many programs out there that you can use to clean up the mess. Alas, I don't know what they are because I don't use them. But you might be able to find them if you look in some other threads about iMovie. What I have done is to make sure that I shoot my video in 16bit sound and once I switched to doing that, I have not had any problems. That is all I have.
  3. tdhurst macrumors 601


    Dec 27, 2003
    Phoenix, AZ

    16 bit audio has worked for everyone I know. For some reason the 12 bit just loses sync. There is some reason behind it, but the explanation currently has escaped me.
  4. big_scot_nanny macrumors newbie

    Jun 18, 2004
    this may help

    I was finding this problem too, and if you look on the apple support discussions it happens to lot's of folk, so go back and slap that apple genius!

    The solution for me was to extract the audio from the video in imovie (menu Advanced-Extract Audio). It was that simple. Then when I exported the movie everything was in sync.

    Give that a try, it certainly worked for me.

    Let us know how you get on!

  5. Rod Rod macrumors 68020

    Rod Rod

    Sep 21, 2003
    Las Vegas, NV
    all of your iMovie problems will be solved by reading The Unofficial iMovie FAQ.

    The following page deals with audio fixes:

    If none of that helps, it's possible that your camera's set at non-drop-frame (30 fps). iMovie and a lot of other editing programs "like" drop-frame (29.97 fps) source footage better.

    Apple KB article concerning the use of 16-bit audio in iMovie:

    One possible reason is Apple designed iMovie and iDVD to work with 16bit/48KHz audio, and not 12bit/32KHz. It's sort of arbitrary and almost a circular explanation... which leads to another possibility: QuickTime's DV codec is designed for 16bit/48KHz, which determines everything else ... as iMovie, Final Cut Express and iDVD are strictly DV tools.

    and another Apple KB article, this one about improving audio and video synchronization:
  6. gusanitoverde thread starter macrumors 6502


    Jun 12, 2003
    Northern California

    :cool: you don't know for how long we have been suffering with this. Thank you all, I will try it out.

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