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In this movie, we're going to be talking about working With audio. We are going to be using the Working With Audio project found in the Chapter 7 folder. Now we have here a video clip with audio, and what I want to do is jump over to the Timeline and show you what this looks like. I am going to hit the Backslash key, that's the key below the Backspace key and above the Enter key that kind of maximizes and really see what's going on. I am also going to go all the way to the right side of the interface and scroll up a little bit so we can see both the video and audio. When you bring in a video clip with audio say just what we have here they are kind of tagged together or rather they are linked together.
So if I click over here to deselect and let's say I click only on the video track which is this Video1 here, and I move one of them, they both come along for the ride. When I trim just the video the audio trims as well, they are linked together by default. I am just going to hit Ctrl+Z to Undo that. At a glance if you need to tell what's going on you also look at the name here so the crazy bird in motion_1.mp4 is the name of the file. As you could see the name of the Project View as well, and if you look next to the name of the file there is a V for a video track and an A for the audio track.
Another thing that's good to keep in mind and you could do this from either the Timeline or the Sceneline is this Mix Audio and we're actually going to be talking about Mixing Audio in the next movie, but for right now, go ahead and click on the Mix Audio button and either the Sceneline or the Timeline. We basically have a little Audio Mixer here which is pretty cool. Again, we're going to get into this in the next movie. But what I want to show you here is that when you playback a clip, I'm just going to use a Spacebar for this or want you to notice is that right now the audio is in this Audio1 track and we are going to see some what they call VU meters which is going to give us a read out of the amplitude or volume of our track.
So I'm going to hit the Spacebar to play that for you. (Audio clip plays- birds chirping and children talking) So we saw basically that as the clip got louder or when there was noise in the clip there were these spikes in volume and when it was kind of low, not too much going on it was kind of hovering around the green. The clip starts out green when there is not too much volume. When they gets louder it gets yellow and then orange and then red and you never, never want to see red because what will happen is even if you don't hear on your computer when you go to play it back on a TV it will be blown out, that's terrible.
It will sound awful. We call that clipped audio and that is bad. Generally most audio freaks make sure that their audio spikes never get above -6 here. If it goes a little bit above that and doesn't really stay there for very long it's OK, but you generally want to stay very, very far away from 0. I call 0 The No-No Zone, so stay out of a No-No Zone. If you need to, you can mix the audio and reduce the audio of the tracks which we will talk about in the rest of the chapter. I am just going to go ahead and hit this X to close out the Audio Mixer for now.
We could also add additional audio tracks to our projects. I have here another audio track called chad's pretty song and I can click and drag this down here to one of these audio tracks in the Sceneline. Now technically this track or this little bar right here is an audio track for narration and this little gap here at the bottom is for a sound track. So you can actually have a bunch of audio going at the same time. You have the audio from your video, you have audio from a narrator or some other type of narration and you can also have the audio of your sound track, but realistically folks, these are all just extra audio tracks it really doesn't matter if you put the narration in the sound track area or vice versa.
They are just basically audio tracks. If we click over here in the Timeline we can also see that this audio track that we added, the chad's pretty song ends up in the Narration category, but the sound is the same whether we dragged and dropped it here in the sound track or whether it exists in Narration, it really doesn't matter. In the next movie, we will look at a couple of different ways to mix this same audio here.
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