Join Maxim Jago for an in-depth discussion in this video Fix a broken sync, part of Media Composer 8.7 Essential Training: 110.
- [Instructor] Just briefly, I'd like to show you a wonderful shortcut way of fixing sync problems that you might encounter if you're working on a more complex project. I've got a sequence here that is just a continuation of our radio edit really, but I'm working in a new version called Fix sync, I'm in the complete version. And I'm going to start off by ruining the sync, so I'm selecting a cut, I'm clicking on the left, and I'm going to just perform a simple, ripple trim.
This is the yellow extract splicing mode trim. When I come out of the trim, you can see that I'm not getting any warning about the sync issue between this 4B-2 clip, the video and audio, but I am getting a warning further down the timeline, even though there's a break in the timeline for 4D-2 later on. Its 75 frames out. On a more complex timeline, you'd see, potentially, tens if not hundreds of clips, all lighting up with these numbers.
And the secret here, is that the numbers tell you exactly what you need to do. Somehow, I need to make a 75 frame adjustment to fix this problem. Now, of course, you've just watched me trim the end of this clip, so we all know that the solution is to extend this clip 4D-1. But there are a number of other ways of fixing this. One might be to extend the beginning of this 4D-2 clip, and if I just, make sure my audio one is off here, and click to add a trim-roller to the filler, I can use my numeric keypad to add 75 frames in a single step.
I'm going to type in +75 and enter, and the clip's now back in sync. This is not going to help me very much over here, where I can see that this clip is out of sync with the audio, but at least I know from this point onwards, everything in my sequence is going to be fixed. I'm just going to undo that. So, the positive numbers tell me that I need to trim to the right to fix the sync problem, and the negative numbers tell me that I need to trim to the left. So, another solution would be, potentially, to get this audio earlier in my sequence.
I can't really do that, or at least, I can't get it early enough, because I can tell, from the position of the video clip, that I'm not going to be able to trim this far enough over for the beginning of the audio to line up with the video. There's a clip in the way. But moving further back along the timeline, I can see, ah, hold on a second, this 4D-1 audio clip segment, that's long enough, and maybe it'll fix the problem. So I'm going to click and add a handle, and now, again, on this track, Media Composer's telling me, exactly what adjustment to make.
It's -75, so I'm going to type -75 and Enter. And, of course, we know this is going to fix the problem, because we just removed the end of the video clip. And now, of course, everything's back in sync. Again, I'm just going to undo this. One might think that the solution would be to trim the beginning of this audio clip. And if I click and drag, you can see, if I try to somehow get this to snap, and line up roughly by eye, if I release the mouse now, it looks like I've done it.
I'm quite pleased with that, actually. No more sync issues with these clips, but now I've got a sync issue with these clips. Because what I've done is move the video shorter, but I haven't changed it in position in relative to my timeline, and now to fix that, I've shifted my audio completely out of sync. One solution is to play through the clip, and listen to the audio, and look at the pictures, and work out which of the two is correct. Let's say, on this occasion, we realize that the issue is with the audio. I'm going to hold down the shift key, and I'm going to click to add another trim handle.
And having entered into a slip-trim, I'm going to do what Media Composer tells me to do. I'm going to add 75 frames. I'm pressing +75 on my numeric keypad. I press Enter, it didn't work. I've now added another 75 frames, and I've pushed my media even further out of sync. So, let's reverse it. I'm going to type in -150, but now Media Composer is giving me one second and 50 frames, which is going to be a little over three seconds.
That's no good, Media Composer's helping me by adding the grammar. But, if you recall from our earlier lesson, I can type an f for frame at the end of typing in a frame count in that way, and Media Composer will calculate again. And this time it'll turn that 150 frames into seconds and frames. So, now I'm going to press Enter again, and the problem's fixed. I hope you're thinking that I've just made this rather simple problem quite complex. But I wanted to illustrate the ways in which fixing sync can lead to some confusion.
And the key thing is to look out for those numbers. If you're working on your project, and you trim, let me make my timeline window active here, and do just that. If you start to see these numbers, never ignore them. There are occasions where you're using a piece of media twice, or perhaps, deliberately moving it out of sync, and that's okay. But if you see a lot of those numbers, it's time to sit back, slow down, and maybe even backup your sequence before you continue.
- Importing and transcoding media
- Creating a group clip
- Syncing picture and sound clips
- Making quick edits such as stringouts
- Recutting a scene
- Creating subsequences
- Pacing a scene with Media Composer's trim tools
- Mixing sequence audio
- Working with high-res media
- Retiming video
- Nesting effects
- Keying video
- Animating titles and graphics
Skill Level Beginner
Q: This course was updated on 10/13/2017. What changed?
A: New videos were added that cover what’s new in Media Composer 8.7, 8.8, and 8.9.