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Activity Forums Adobe After Effects trimming video and stretching it

  • trimming video and stretching it

    Posted by Marc Davis on March 9, 2012 at 2:11 am

    i been trying for the past 6 hours on cutting a specific part of a video using the set in and set out points. However on the timeline i want to add the time coding ping pong expression so it can stutter back and forth to the music, but when i stretch it, it adds the rest of the video i do not want from the clip. does not repeat with the loopOut function. What am i doing wrong here. I got the loop to work with a full clip, but i can’t get it done with this one. please help thanks

    Frank Brown replied 14 years, 1 month ago 2 Members · 10 Replies
  • 10 Replies
  • Frank Brown

    March 9, 2012 at 10:19 am

    Alt + [ — cut in
    Alt + ] — cut out

  • Marc Davis

    March 9, 2012 at 12:50 pm

    thanks i have tried this as well. tried again and it still keeps playing the footage after the cut out when i time stretch it. do i need another program to chop it up?

  • Frank Brown

    March 9, 2012 at 3:16 pm

    How about cutting and pre-composing with Moving all atributes to a new composition?

  • Marc Davis

    March 9, 2012 at 11:31 pm

    i am a newb and what you said sounded french to me lol. sorry but can you explain thanks

  • Frank Brown

    March 10, 2012 at 12:32 pm

    3837_precomp.mp4.zip

    Here is the example

  • Marc Davis

    March 10, 2012 at 1:11 pm

    thanks that worked. however as i did this, the timeline now starts from 00860 instead of the beginning,i cant seem to get back to that start. I used the loopout function with pingpong but it does not keep looping to the extended clip. it stops in the middle instead of looping for the entirety of the timestretch.

  • Frank Brown

    March 10, 2012 at 5:38 pm

    Marc
    So, in that way you should move your footage to beginning of the compositions instead usin “B” – for beginning (but you should use “N”- for end).

    Agreed with Dave LaRonde.
    First things go first.

  • Marc Davis

    March 10, 2012 at 6:19 pm

    thanks well i learned the basics somewhat. learned all about the loopouts and the basic functions but -b -n was not covered there. Or in this case how do i get back to zero? i deleted the clip so i can do it all over again and did undo as back as i could. but the timeline stills shows the beginning as 00860. can’t seem to get back to zero even if i entered it on the time on the left. i am almost done with this video, just the looping part of that clip needs to be added. i have the intro with a sun coming up and back down with the pingpong attribute and the title. that worked flawlessly. this clip is the only thing giving me issues here. i also did the expressions for the soundkeys to make it move with music. I did not save before i did the -n and -b so i really don’t want to start over.

  • Marc Davis

    March 10, 2012 at 9:00 pm

    nevermind i figured out that all i do to do was go to the comp settings and enter 00000 there. awesome now to see if i could get this loop out thing workign on this clip and then i am done.i will send you the link when i am done with my first video if i can’t loop it i guess i leave the intro looping for one hour lol thanks again

  • Frank Brown

    March 10, 2012 at 9:20 pm

    You are welcome.
    Ok I’ll be waiting for your result 🙂

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