12 Replies Latest reply: Aug 11, 2012 7:14 AM by chiarov
Ursula Wilson Level 1 Level 1 (5 points)
Ever since I upgraded to imovie 11 all of my video clips show a 60 in a yellow frame - both in events and projects - with the message "indicates clip frame rate (60fps) is not a multiple of the current project (25 fps)". What does this mean? As I said shows in events and projects. To stop audio jumping I detached all audio from clip but how do I fix the clip frame rate? Assume this causes "jumpy replay" problems. How do I fix and where??? Please help. Could not find solutions anywhere.

MacBook Pro, Mac OS X (10.6.4)
  • Tom Wolsky Level 10 Level 10 (110,550 points)
    Sounds like you shot with a camera that records at 59.94 or 60fps, which is unfortunate if you're in Germany. For you a camera that shoots at 25fps would work best.
  • betaneptune Level 1 Level 1 (0 points)
    Production site wrote:
    Ever since I upgraded to imovie 11 all of my video clips show a 60 in a yellow frame - both in events and projects - with the message "indicates clip frame rate (60fps) is not a multiple of the current project (25 fps)". What does this mean? As I said shows in events and projects.


    I get that too. It's in the lower left-hand corner, right? It is displayed whenever there is a mis-match between the clip and the project fps setting. I am currently working on a project where the original video is a transfer from Super 8. It is was shot at 18 fps and my .mov file is at 18 fps. I am working in a 24 fps project window and it shows 18 in the yellow squares in the event viewer. It does a pull down of 1 1 2 to "stretch" 18 frames to 24 (3 to 4). So far, I've found this to be harmless. I'm not sure what the best rate for your project is as regards your final output, so I'll leave that to others.

    To stop audio jumping I detached all audio from clip but how do I fix the clip frame rate? Assume this causes "jumpy replay" problems. How do I fix and where??? Please help. Could not find solutions anywhere.


    Assume? Didn't you try it? If it does, it does. If it doesn't, it doesn't.

    I'm not working with live sound. I have only added music to existing footage, so I can't help you with this problem -- if you really have it!
  • mattias.rylander Level 1 Level 1 (70 points)
    If your end target is computers, HD-tvs or internet, the framerate doesn't really matter.
    You can switch your project to a 30fps variant instead and you won't have a problem.

    For things that aren't analog, there is no practical difference between 25 and 30 fps.
    Even if you do produce an NTSC DVD and play it in a european DVD player, the players usually have nifty routines to automagically convert the framerate on the fly and most people won't be able to tell the difference.

    HTH
  • Ursula Wilson Level 1 Level 1 (5 points)
    Assume? Didn't you try it? If it does, it does. If it doesn't, it doesn't.

    Meant to say I assume that is what causes the jumpy video replay. But the audio detach seems to have fixed that problem. However, why did the clip frame rate work in imovie 09?
  • Ursula Wilson Level 1 Level 1 (5 points)
    How do I switch projects to 30fps? But you also say that generally it won't make a difference to any projects? If so, I can live with the "yellow numbers" - but why did it work in imovie09? Would it make sense to change to 30 fps? I am at a total loss with this one.
  • mattias.rylander Level 1 Level 1 (70 points)
    I meant to say it only (if I may generalize here) makes a difference when you edit. Don't try to edit 30 fps material in a timeline meant for 25 fps. Very few applications can accomplish this with a good end result.

    The easiest way to change a projects framerate is to edit the project xml file.

    Right click on your iMovie project file and choose "Show package contents..." (or something similar)
    Edit the "Project" file (no extension) using the free Textwrangler editor or a plist capable editor.
    Find the node "frameRate" and update to 30.

    or easier just create a new project

    HTH
  • betaneptune Level 1 Level 1 (0 points)
    mattias.rylander wrote:
    I meant to say it only (if I may generalize here) makes a difference when you edit. Don't try to edit 30 fps material in a timeline meant for 25 fps. Very few applications can accomplish this with a good end result.


    Are you speaking about this particular change of frame rates or any?

    Having transfered Super 8 film that was shot at 18 fps, I have little choice but to change the rate. So far everything seems to be working out fine. For 24 fps iMovie does a pull-down of 1 1 2; for 30, 2 2 1. I'm a little confused as to whether I should use 24 or 30 fps. I'll be asking about this in a new thread.


    The easiest way to change a projects framerate is to edit the project xml file.

    Right click on your iMovie project file and choose "Show package contents..." (or something similar)
    Edit the "Project" file (no extension) using the free Textwrangler editor or a plist capable editor.
    Find the node "frameRate" and update to 30.


    Really? That's a cool trick! But it sounds like it could easily mess things up. Have you tried this and with what scenarios?


    or easier just create a new project

    HTH


    Message was edited by: betaneptune. Changed "under" to "with" for better clarity.
  • mattias.rylander Level 1 Level 1 (70 points)
    I'm sorry I missed you mentioned you had 60fps clips in iMovie. If this worked well i iMovie '09, didn't you change the framerate of iMovie by editing the config file?

    You must do the same for iMovie '11. Easiest is just to create a 30fps project and then edit the project file as I've described in this thread.

    Switching to a 30fps project (as I erroneously said) will not solve the issue with the fps warnings. Only by switching to a 60fps project will do that.

    However, I find iMovie has numerous quirks and bugs related to using these unsupported framerates.
  • mattias.rylander Level 1 Level 1 (70 points)
    I was speaking in general terms but it is true in this scenario as well.

    Regarding changing the project settings. I do this on a regular basis since I shoot all my private videos in 50fps.
    The settings change itself is harmless. If you worry, just make a backup of the file prior to changing it.
    iMovie does have quirks and hiccups in regards to working with these unsupported settings. But I've managed to get a pretty clean workflow for importing, editing and exporting quality at 50fps.
  • Ursula Wilson Level 1 Level 1 (5 points)
    I have not worked on my imovie projects for a while but after creating a new project and using the 30fps the yellow numbers in the clips disappear and I can view the project. However, now clips keep getting "hung up". Movie plays and the audio (from i-tunes music) plays on while individual clips keep getting stuck for a couple of seconds before carrying on or jumping part of the next clips. Have tried detaching audio from the the clip but no change. Does anyone have an idea what this could be and how to solve it.
  • hitchner Level 1 Level 1 (0 points)

    I too am having problems with the frame rate. I got the yellow warning tag with the message "clip frame rate (34 fps) is not a multiple of the current project (30 fps)" on 2 video clips I'm using in a current project. The clips were imported from Quicktime .mov HD files (1280 x 720) and according to the Quicktime Movie Inspector their FPS is 29.97, i.e., 30 FPS. When I created the iMovie 11 project I defaulted to 30 FPS (U.S. standard).

     

    After being baffled by this conflicting info, I tried a few alternatives during import, and I discovered that if I do not select Optimize Video then the frame rate of the imported clips is set to 30 FPS. But, if I select Optimize Video, then their frame rate is evidently changed to 34 FPS. I was OK with choosing not to optimize the imported files, but then I wanted to apply slow motion to a clip and that requires optimizing the clip. Thus, I'm stuck with either not optimizing the imported video and not using any video adjustments such as slow motion, or if I optimize the imported video then I get the frame rate mismatch warning. Any suggestions?

  • chiarov Level 1 Level 1 (0 points)

    I get this message too, but I think it's a mistake. 120 fps is my clip framerate and 30 fps is my project framerate.

     

    Pretty sure that 120 is a multiple of 30! (a multiple of 4) so it seems that maybe someone at Apple can''t do their math?