Converting A Clip for Speed Adjustment

Hello iMovie 11 Forum,
I am already well aware that in order to adjust the speed of a clip in your movie you have to "convert" the clip. My question is that if you select a clip in the actual project and convert it, will it just convert the that selected clip or will it convert the ENTIRE clip (the source clip). Currently I have an 11 second clip I want to convert and it's taking FOREVER cause the source clip is kind of 2 hours or so. Haha! Can anyone help me out?
Thank you kindly,
Star

xxxx
Message was edited by: AppleMan1958

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Converting for Speed Adjustment Degrades Video Quality

In order to adjust the speed of a clip, iMovie must first convert the clip. Allowing iMovie to make this conversion visibly (and permanently!) degrades the quality of the video for that clip. Does anyone have a work-around to allow the speed adjustment and keep the original video quality?
(Original video files are 1280x720 and shot with a Panasonic LX3.)

I have Visual Hub and MPEG Streamclip - can I use one of these to convert my original .mov files to whatever iMovie is looking for in order to do the speed adjustments without having the video degraded?
Yes but you want to use the application providing the best frame rate conversion strategy. Any re-compression has the potential to degrade your video content. As to the "main" thing iMovie is looking for -- that would be the frame rate. Before iMovie can apply a speed change effect -- the frame rate must be standardized in terms of the reference clock used by QT. All other settings are arbitrary as long as they are compatible with iMovie '09.
What "recipe" should I use when converting the video?
That would depend on the target compression format you plan to use since some setting are "fixed" for some formats while others are user adjustable. Recommend you compare the newly converted clip with the original to see what changes were actually made so you can better decide which settings you may want to change and which you want to keep the same as the original if possible. As I said before, if you shoot the footage at the editing standard frame rate, no conversion would be required. Since changes in frame rate of cause "skips" or "halts" to smooth playback, I normally don't recommend changing the frame rate if it can be avoided.

Speed adjustment has stopped working

iMovie 10.0.4; OS 10.9.4.
I am three quarters of the way through a 45-minute project, and the speed adjustment has stopped working. The hare icon is greyed out. I have used the adjustment successfully on two or three clips in the project, both for speed adjustment and clip reversal, and these adjustments are still effective, though the SpeedBar and hare symbol have vanished from their thumbnails.I have tried a number of things, but to no avail:
Creating a new project based on a different event. Speed adjustment does not work for that either.
Creating a project in iMovie on a different user account. That does work.
Reverting temporarily to iMovie 10.0 .3. Didn't work.
Repairing permissions and restarting. Didn't work.
Any help would be much appreciated.

I haven't really done any cleanup or anything for that matter simply because I can't figure anything out. When it comes to track down and remove the user.js file, I can't find it at all. I even followed all the instructions to get to the profile page that it would be one. I am not trying to get speed dial as a home page, I want it to be there when I open up a new tab. On the whole speed dial options, it is selected as a new tab however this flippin search page conduit.com is there. I have even set the speed dial to open up in a new window, and that did not work. I don't know what to do. I feel for whatever reason my Firefox is not installed properly. When I installed it, the so called firefox button at the top was never there. When an online instructions shows me pictures, I have something completely different and have to spend time figureing out where this whatever is. If resetting firefox will fix the issue, even if I have to re install Speed dial and reset it all, I am totally game for that. Nothing else has worked and I am getting very frustrated by it.

IMovie 09 - Slow motion and speed adjustment of clips

I was trying to adjust the speed of my clips in a project. When I double clicked on the clip, it told me that I needed to convert the clip before I can adjust the speed. So, I click the button to convert the clip but it doesn't allow me to adjust the speed.
Any ideas out there? Anyone come across this? Is there something wrong with my clip? Help...

This has been brought up before here.
http://discussions.apple.com/thread.jspa?threadID=1900630&tstart=0
It seems to be a combination of codec types and footage fps that causes this. Jon Walker did indepth test in that thread.
For example, interframe codecs like MPEG4 seems to prefer conversion. Intraframe codec movies (AIC, PhotoJPEG...) are less picky, but they need to be in NTSC compatible fps. (29.97 and 23.98, instead of 30 and 24.) Above thread was about a Quicktime movie from LX3 camera with 24fps. At its native 24fps it needed to be converted before speed change, but after conforming fps to NTSC friendly 23.98 in Cinema Tools, it became speed adjustable without conversion.

Speed adjustment (not entire clip)

I am already well aware that in order to adjust the speed of a clip in your movie you have to "convert" the clip. My question is that if you select a clip in the actual project and convert it, will it just convert the that selected clip or will it convert the ENTIRE clip (the source clip). Currently I have an 11 second clip I want to convert and it's taking FOREVER cause the source clip is kind of 2 hours or so. Haha! Can anyone help me out?

Hi carlirae93,
Thanks for using Apple Support Communities.
For more information on this, take a look at this article:
Mac OS X: How to troubleshoot a software issue
http://support.apple.com/kb/ht1199
Best of luck,
Mario

Optical flow for speed change clips

Im just found out about optical flow. what speeds is it worth using it on?
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I see two issues.
One is that your source footage is 15 frames per second. Most video that iMovie sees is 30 frames per second or 25 frames per second.
Second issue is that you don't appear to have the Apple Intermediate Codec component installed on your system. When the footage can't be speed adjusted natively, iMovie will convert the footage to Apple Intermediate Codec at 30 frames per second so that the speed adjustment can be applied.
So, you need to reinstall iMovie from the original iLife 09 disks. If iLife 09 was preinstalled on your Mac, reinstall it from the Leopard Disks that came with your Mac.
You are missing the file called AppleIntermediateCodec.component in the MacintoshHD/Library/QuickTIme/ folder.

When I use Photoshop CS 6 to edit video, I don't know how to change video speed after I converted the clip to smart object?

When I use Photoshop CS 6 to edit video, I don't know how to change video speed after I converted the clip to smart object? The clip color turns purple and it only allows me to add motion but not change the clip duration and speed anymore.

Thanks for the reply and as a work around method I used the Photoshop to do all the adjustments then export the video to iMovie to finish the final cut. I also have a problem to paint or clone on a blank video layer created in Photoshop. It tells me the time is beyond the target frame time, I don't understand the message. Can you explain to me what did I do wrong? Thanks a lot!
John Wang
801-3618742
[email protected]
http://johnwanggallery.shutterfly.com

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Do you mean get 55 minutes of real time footage to show in only 55 seconds?
One way that might work but it will take a fair bit of work in multiple repeated steps.
Select all the footage on the timeline and then use the Turtle/Rabbit slider to speed it all up to the maximum speed allowed. This of course won't be any where close to 55 seconds.
BUT... export your movie back out to video tape or to a full quality DV format quicktime file. This speeded up version becomes "normal" time. Now reimport to iMovies. Since this is now normal speed as far as iMovie is concerned, you can again use the slider to speed the whole thing up to the max.
Now just repeat as often as needed to get it as fast as you want. Export back out, reimport, adjust speed, export, import, adjust, etc.
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How do you convert .AVI files for using in iMovie without losing the original clip time and date

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The '''''Yahoo! Toolbar''''' and the '''''Babylon''''' extension have been reported to cause that problem. They seem to invisibly extend downward over the top of the web page display area. Disable or uninstall those add-ons.
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*See --> http://kb.mozillazine.org/Uninstalling_toolbars
*See --> https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes
'''If this reply solves your problem, please click "Solved It" next to this reply when <u>signed-in</u> to the forum.'''
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TA25521 After editing a video clip that was shot in 60fps how do I convert that clip to 24fps for publishing

After editing a video clip in FCX that was shot in 60fps how do I convert that clip to 24fps for publishing?

There is only a limited amount of Compressor instruction available unless you purchase a subscription to something like Lynda.com or a tutorial from Ripple or Larry Jordan.
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Here is a short write-up from Ken Stone on changing frame rates.
Good luck.
Russ

Disturbed Audio with long clips and speed changes.

Hello,
I experienced a strange problem in FinalCut Pro (v 6 and 7).
-I capture a clip with a Blackmagic Decklink or a DVS Pronto as Uncompressed Quicktime, 720p50 via HD-SDI with embedded audio. The clip is about 10 minutes long.
-I speed down the clip at 36% by changing the clip's speed in the sequence.
When I render the audio track, I get completely distorted audio after some minutes until the clip's end.
The problem doesn't seem to occur when I put the clip in a sequence and nest that sequence into a second one and change the nested sequence's speed.
Is that a known bug? Did anyone out there experience the same problem? Is there any technical explanation and solution?
Message was edited by: weisseruebe

Both Picture Safe and Title Safe are guidelines. They were developed to ensure that titles and pictures placed within these guides would be viewable on most televisions.
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Optimizing clips for multiclip playback

I'm stretching the limits of my hardware and attempting a 9-camera multiclip edit (in the multiclip 9-up view).
Original footage is [email protected]
I've downmixed audio to stereo at 48KHz/24bit
The format of my final edit is TBD but meanwhile to create an EDL I'm happy to work in clip sizes that will allow the 3x3 multiclip playback (assuming it's possible on my hardware)
I'm sure there are many ways of approaching this but I have a relatively straightforward question:
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Forget about output format ... I just need to be able to see the individual clips in the multiclip view at, say a certain minimum resolution (remember my max of 640x480 anyway) and playback in realtime for editing.
I suspect I may also need some creativity here, eg: some clips internal; some external?

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Regarding toys: all our machines will be toys next year.
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I couldn't get any other setup to work: MPEG1; certainly not DV due to data (and decode?) rate; in a rash move I even tried uncompressed 8-bit splitting files across the external FW400 and internal SATA but it couldn't deal (only talking 320x240).
Any comments before I put this to bed?

How do I have different speeds during my clip in imovie without having my whole clip one speed?

How do I have different speeds throught one clip without having the whole clip one speed?

The clip should be in your project. If it is not, drag it into your project from your event.
Now select the portion of the clip that you would like to change the speed for. A yellow border should be around this portion of the clip. Now, right-click on that portion of the clip and select SPLIT CLIP. Repeat if necessary if you need still more segments at different speeds. Now you can adjust the speed of these new split clips separately.

When I move high quality clips into my timeline in Final Cut Express HD, they look and export low quality. I have tried converting the clips and de-interlacing them, but they always look the same, What is the problem? Thanks so much.

When I move high quality clips into my timeline in Final Cut Express HD, they look and export low quality. I have tried converting the clips and de-interlacing them, but they always look the same, What is the problem? Thanks so much.

You should check that the Project settings match the clip settings before editing them to the Timeline.
Only newly created Projects will change not existing ones by adjusting the Project settings.
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Converting A Clip for Speed Adjustment

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