Performing fit-to-fill editing to force specific speed changes

- [Instructor] Let's look at how to perform fit to fill editing which allows us to fit a certain duration of source material into a marked area in the timeline. Okay, so let's take a look, I'm going to load my pre-fit to fill sequence here and I have a number of markers and I'm going to come to this first one and this action is of the door of the brewery raising and we have Casey and Kyle walking in, okay? But they're kind of walking fairly slowly and this shot is already fairly long anyway and what I would like is for the entire action of the door raising and them walking into the brewery to occur in this introductory shot.

I'm just going to play it so you can see the speed that it's at naturally. (rock music playing) Alright and then I'm going to perform a match frame so that we can see the entire shot, so I'll just park on the shot and press F and this marked portion is what's currently in the timeline but what I'm interested in is just subtly changing it so that we get basically the entire door raising and them walking fully into the brewery, okay? So I'd just like to speed it up a little bit but, again, this is a bit of a subtle change.

So I'm going to mark an in here, maybe here, you see this guy walking out of the frame, I don't want to see him, so yeah, about right here and then I want to have them walk in and look at each other and I'll mark an out there. So if you take a look, we have 10 seconds and 11 frames in the source and I'm just going to park on this and press X to mark the segment in the timeline and we have seven seconds and eight frames in the timeline. Okay, so I want to fit this entire action in here and so what I'm going to do when I have both an in and an out in the source and an in and an out in the timeline is I simply perform an overwrite edit and remember it's this onscreen key here or the period key, so I'll press period and then when you have in and outs in both the source and the timeline you're going to get this dialogue box and you have a choice to make and the one that we're going to choose is change clip speed fit to fill and I'll say okay and notice that, actually, I had audio selected as well and I think this is going to be a bit of a problem because we'll hear them too, so we might need to redo this, but let's go ahead and take a look and a listen.

(rock music playing) (indistinct talking) Alright, so as you heard the voices are sped up which doesn't work. We'll lower it anyway since it's over music, but I'm going to undo, command Z, and I'm going to just disable audio and we'll do it again. Period fit to fill and okay and now we have the entire action of the door raising and them walking into the brewery into this marked segment in the timeline.

(rock music playing) Alright, so perhaps it's a bit fast, but I think it's realistic enough to achieve my goals. Now I'm going to come down to this shot here and I have Casey working on a bunch of brewery equipment and at this point in the song, what I'd like to do is really speed this up. So you can actually also use fit to fill for exaggerated motion. So again, I'm just going to mark the segment in the timeline, you always have to have an in and an out in the timeline so I'll press X and then again, I'm going to perform a match frame so I'll press F and let's just mark this whole shot.

So, let's see, go ahead and start with it here mark an in and an out so we have 28 seconds and 16 frames that we're fitting in four seconds, okay? So this is super fast motion. Still can do it with fit to fill, I'll press period and fit to fill, okay, and again we had our audio off so that's not going to be brought into the timeline and let's watch. (rock music playing) Alright, that works for me, and then finally I want to explore slow motion.

So here I have Casey cleaning out the tank and what I'd like to do before I get to these tasting room shots is just end on him cleaning out the tank in slow motion. I'll play it in real time first so that you can just see what it looks like. (rock music playing) So let's again just grab this shot and in all of these examples I'm taking the exact same footage and just finding a different part of it to put into the timeline. You can actually put any footage, in fact, you can just mark a segment within the filler of the timeline, okay? All you need is an in and an out point somewhere, but we'll come back to this shot and I'll mark this, press X, and then I'll press F to make a match frame and right now we have four seconds and two frames.

Let's reduce that by a little bit more than half. Alright, so I'll mark an in here and maybe an out here, okay, we have a second and 20 frames to fit in four seconds and two frames. I'll press period and fit to fill and okay and let's look. (rock music playing) Alright and now we have our slow motion. Now this can be a decent little effect you can use as long as you're not slowing it down dramatically because if you're trying to fit a shorter section of your source into a longer section in the timeline and you're really slowing down, like under 30% speed, it's going to end up very jerky.

After Effects has much more robust speed reduction tools so you do have the option of taking it over to After Effects if you really need to perform that sort of work. So check out the After Effects essential training. Alright, so as you can see fit to fill is a really nice way to work when you need to change the speed of your clips, especially when you need to fit a certain action in the source into a specific duration in the timeline.