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Activity Forums Apple Final Cut Pro Legacy Changing audio speed with keyframes?

  • Changing audio speed with keyframes?

    Posted by Annelisse Marie on January 7, 2008 at 6:16 pm

    I have two identical tracks of audio playing simultaneously, in sync with each other. Is there away to have them slowly lose sync with each other?
    I’ve been playing with the speed of the 2nd track, cutting the second into smaller clips and discretely slowing downing the clips more and more, but its noticeably not smooth. Is there a way to use keyframes to change the speed of the audio smoothly?
    Thanks for any info,
    a

    Scott Taylor replied 18 years, 4 months ago 3 Members · 2 Replies
  • 2 Replies
  • Mike Kahn

    January 7, 2008 at 7:27 pm

    have you tried putting a crossfade on the cut up tracks?

  • Scott Taylor

    January 8, 2008 at 12:36 am

    If you want to just “slowly lose synch” you really only have to slow down one clip slightly, same speed throughout. It will start out in synch and since it is a shorter clip now, it will finish before the original. This whole time it will gradually go further out of synch. The amount you slow it down will determine how fast this effect is noticed. You don’t need to “progressively” slow it down unless you want that slow, garbled “HAL” effect.

    Scott

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