As you'll undoubtedly realize every project must contain at least one track, be it a video with it's parallel audio track or a sole video track with no sound. And this minimal amount of one track can contain a minimum of one event, although to be honest I'm scratching my head as to why you'd want a project of just one event. Especially if the length of the events were only quite short as they are here. Anyway what we're going to look at in this tutorial is we're going to look at working with tracks. And as we've already seen the track list is where all our events get populated. So we'll look more closely at the track list and how we can navigate around any events we've got on our track list by using the Navigation and Zoom Buttons. So as you can see here I've got four tracks and these are made up of two pairs of two video files with their associated audio components. Incidentally remember what I said earlier about video tracks higher up the track list obscuring any of those video tracks below? Well that doesn't apply to audio. Audio tracks get merged or blended together. Let me show you what I mean. I'll mute the bottom audio track by clicking here. Now this will allow my top video and associated audio to play until here, then the bottom video will play without it's audio. Okay. So let's watch and listen to this, so I'll hit Play now Šaudio playing -. Right lots of drums for video one with it's embedded audio and then because we muted the audio for video track two, then the band played away but we couldn't hear the audio. Right I'll now unmute the second audio track. Notice at the start where our first video is, well we see our video and it's associated audio and also below we see the second video track with it's associated or embedded audio as well. But when I play this back in a moment we are only going to see as we've just seen the video on video track one being visible to us because it obscures what's below. But as I said this doesn't apply to the audio. What's going to happen is we'll watch the video for video track one but we'll also hear it's embedded audio merged or blended in with the audio despite not being able to see it's associated video. But we'll also merge the audio from audio track two. And it's only when we get to the end of video track one where it cuts short there, that video track two because it's now not obscured will be able to be displayed. Now a warning this audio playing back like this, well it's going to be a cacophonous noise and it will distort. That said I'm going to artificially turn down the playback but you'll notice it distorts because the Level Meter over here, you'll see some red warning clip indicators as the audio becomes too loud as a result of both audio tracks playing back together. Right. As I say be warned, here goes Šaudio playing-. Okay, awful. Right then as we are becoming aware it's the track list that offers information about the track, not necessarily the event or multiple events on that particular track. Rather the track list controls and offers information about the whole track. And you can see this with video track one there. It's set to 100 percent opacity meaning that this will obscure anything below it on video track three. Additionally it's volume on track two is set to zero DB, i.e. optimum level. And therefore we listen to this back a few moments ago in isolation just one audio track is fine because it's playing back at optimum level. But once mixed in with the second audio track well as you saw and heard, two audio tracks playing back at optimum level create distortion. Now if you want to resize these tracks or scroll around. Then by moving right over to the right of our screen then you'll notice this vertical slider, this vertical scroll slider which allows me to just drag down to move down to all the lower tracks or of course back up again. We have seen this previously. And if we want to zoom into our tracks horizontally then there is a scroll slider down across the bottom of the timeline. At this resolution it covers the entire width so it doesn't actually scroll but we have seen it before anyway. However it does have another trick up it's sleeve. Can you just about see at the beginning of this scrollbar that there are a couple of lines? This allows us to not scroll along but to zoom in and notice as I roll over it my cursor changes to that double ended arrow. And if I left-click on that and then drag to the right, then effectively what I'm doing is I'm zooming in around that point. And therefore now I can use the drag slider to move back to the start. So I'll just left-click on the scroll somewhere, there will do and drag it over to the left once more. And I'll do the same thing but at the end of this scrollbar now where those two lines are. Just left-click and then by dragging towards where the events are at the end there, well as you can see that allows me to refocus in on those particular events. Zooming in close around these events. Okay. And right down in the bottom right-hand corner you'll also notice that there are some Zoom In and Zoom Out Buttons where we've got the Plus and the Minus Buttons. Plus being the zoom in of course. I'll click this a couple of times and then the Minus Button to zoom out again. You'll have noticed we also get duplicate Plus and Minus Zoom In and Out Buttons there and this is for the vertical axis. Now this adjusts the track height. Now I'm not going to use those just yet, we'll see them in action in a second. And another way that we can zoom in on a specific area is to grab this, well it looks like a magnifying glass. Simply click on there and this is the Zoom Edit Tool. And then once you've got it selected come over to an event, left-click and drag a range. And instantly once we deselect then that particular range, short as it is fills our timeline. Okay. We've zoomed in by that much. Okay. Now I'll use my horizontal scroll Minus Button at the bottom there to zoom back out again. And now I will adjust my track height by clicking here a few times. Okay. Now another way of doing the same thing is by coming up to Edit and then dropping down to Editing Tool and then just simply fly-out to the right and down to Zoom. And you'll see now my cursor changes back to that magnifying glass. Now I'm not going to use it, we've just seen how this works. Okay then. So that's a quick look around these Navigation Buttons or Navigation Tools and how the track list controls what we see along our timeline.
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