Join Maxim Jago for an in-depth discussion in this video Trim on the fly with the JKL keys, part of Media Composer 8.7 Essential Training: 110.
- [Instructor] Now that I know I can selectively sync lock specific tracks. I can turn on the sync locks for my video one and audio one, and leave my music where it is, and begin to perform some more advanced trimming operations. I'm going to just click here to add a trim roller to the end of this first shot. And, notice, if I want to, I can hold the shift key down, and manually add additional trim rollers wherever I like. So, here, for example, I'm performing a rather complex trim.
Notice that Media Composer won't let me, and the reason is, that I've got a dual roller trim on one edit on a clip, and only a single roller on another clip, you see, we've got this bright red trim roller telling me that this doesn't work. And it's quite interesting that the design of Media Composer allows me to get into this situation, where I can add rollers that, actually, are unusable, but I suppose I could, at this point, hold down the shift key, and add a roller to the other side of this edit.
Now I can begin to work. Or, for that matter, if I just remove this, again, I'm holding down the shift key, I can add a trim roller after this clip. What I'm performing here is a very advanced version of a dual-roller trim, and a slight edit, where, as I trim, I'm going to move this clip over, and I'm going to adjust the duration of this music clip. We'll come to these slip and slide trims later on. Just for now, I'm going to de-select, and I'm going to go back to my extract slice in trim, just for this track.
If I want to, I can click and drag, and my trim rollers are going to keep this video and audio in sync, but this is a perfect piece of media for me to demonstrate a feature called JKL Trim, which I'm a huge fan of, in Media Composer. I'm going to click and drag back a little way, through the clip, and, in fact, this is often the way I would work with media of this kind. I know that the end of the clip is right here, I get this red bracket, as I try to drag, showing me that there's no more media left to trim into. And before I begin performing a nuanced trim, I'll just drag all the way to one end of the clip, and all the way back to the other.
This gives me an immediate familiarity with my content. So I can make a more informed decision about where I want to trim. Now, I can see, looking at this action, this is a fantastic action shot. Cameras are tracking through, but just there, this poor guy is jumping off the wall, and, actually lands on his side. He pulls it off pretty well, and runs off, but I think it's probably better that we don't show him collapsing. So, let's just have this shot right up to about here.
But the question is, how do you know the right moment for the cut, and the answer is by playing back. So, what I'm going to do is jump back a little bit earlier than I need, and release the mouse, and that's performed the trim. And now, when I have a trim roller, I'm going to use the J, K, and L keys to play it back. The space bar will loop play over the cut, let's take a look. Okay, but J, K, and L will actually play the roller. So, I'm going to press the L key, until I find the moment I want, and when I think it's time to cut, I'm going to press the K key, and just look at what happens, on the time line.
And, I'll cut there. And what's happened is the trim has been applied, at this point in time. Now, there are keyboard shortcuts available to jump from one side of an edit to another. In this case, I'm going to click onto the right side of the composer window, and I'm going to use exactly the same technique to trim the beginning of the next shot. Let's take a look at the content, and I'm going to just make sure my timeline window's active, and let's click and drag through, nothing's been finalized, of course, til you release the mouse.
And I can see that this action really starts a good chunk of the way into the clip. So, I'll just click back, and, again, let's use J, K, and L, but this time, I'm going to press the L key a couple of times, to play through faster. There, so, just as you can use J, K, and L to change the playback speed, you can also change the playback speed during a trimming operation of this kind. Then, it's just a question of jumping to the next cut, choosing the side of the edit, and beginning again.
Another way to do this is to just rock back and forth around the edit, using the J, K, and L keys. Now, I've got a very loud piece of music, here, on my audio three and four track. So I've just turned on the wave forms, so you can see, it's very loud, indeed. So, I'm going to mute both of these audio tracks, and then let's try the J key to play backwards. And I'm pressing K to pause, and now, I'm playing forwards, with L. Just about there.
So, that's using the J, K, and L keys, in combination with specific sync locks, and, in this case, with muting some tracks, to avoid us being a little bit overwhelmed by our audio.
- 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