This chapter is from the book
This chapter is from the book
This chapter is from the book
Sync Lock and Track Lock
Now that we have items on two tracks in the Timeline, we should talk about Sync Lock and Track Lock. Sync Lock is enabled by default on all tracks and ensures that all tracks are affected equally by certain adjustments made to any track.
For example, note that the St. Basil’s title is located directly above the St. Basil’s clip, exactly 16 seconds into the video 
. If I inserted a five-second intro title on V1, I would still want the St. Basil’s title to be located above the corresponding clip, and with Sync Lock enabled for both tracks, Premiere Pro would move both clips five seconds to the right 
. Perfect; just what we wanted.
)
Our starting point. Note that the St. Basil’s title and clip are aligned 16 seconds into the sequence.
)
With Sync Lock enabled, the St. Basil’s clip and title shifted five seconds to the right.
Now suppose the title had nothing to do with the clip but just needed to appear 16 seconds into the video. With Sync Lock enabled in both tracks, adding a five-second title to track V1 would move V2 five seconds as well, which isn’t what we want in this case. So, you would disable Sync Lock on V2 
and add the title to V1, and the title wouldn’t move.
)
With Sync Lock disabled, the St. Basil’s clip shifts five seconds to the right, but the title doesn’t move.
Any time you don’t want the content on some tracks adjusted for edits made in other tracks, disable Sync Lock for the tracks that you don’t want affected.
Track Lock is totally different, and simply locks the track from either direct editing or from adjustments made to other synced tracks 
.
)
To enable and disable Sync Lock
- Sync Lock is enabled by default. To disable Sync Lock, click the Toggle Sync Lock button
. When you see a line over the Sync Lock icon, Sync Lock is disabled 
. - To enable Sync Lock, click the Toggle Sync Lock button . When the line disappears, Sync Lock is enabled
.
To enable and disable Track Lock
- To lock a track, click the Toggle Track Lock button ; the lock icon closes, and Premiere Pro displays a diagonal line pattern on the track
. - To unlock a track, click the Toggle Track Lock button; the lock icon opens and the diagonal line pattern disappears.
How Premiere Pro Works with Tracks
Another topic we should discuss now that we have content on multiple tracks 
is how Premiere Pro works with tracks, which differs between audio and video.
)
Let’s start with video. There are three video tracks with content in 
, V1 has the street scenes from Moscow, V2 has my scintillating narration about the trip, and V3 has the St. Basil’s title.
Premiere Pro combines these tracks from the top down. Whatever is on a higher track obscures the content on the lower track. So if the street scenes from Moscow were on V3 instead of V1, you wouldn’t see the title or the narration.
Content on higher tracks obscures content on lower tracks unless the higher tracks are either smaller or transparent. I made the narrative on V2 smaller (using the Motion controls you’ll learn about in Chapter 8) by creating what’s commonly referred to as a picture-in-picture. If I had left the narration video at its original resolution, which was the same as the Moscow street scenes, it would totally obscure the lower track.
You can see through the background frame of the title because I made it transparent, which you’ll learn about in Chapter 13. The text isn’t transparent, so you can’t see through it. Besides titles, the most common application of combining clips with transparency is compositing, or greenscreen, effects, which you’ll learn about in Chapter 9.
Audio is completely different. In the figure, there are three audio tracks: background audio captured with the street scenes (V1), the audio from my narration (V2), and the background music (V3).
Premiere Pro affords these tracks equal weight in the mix, regardless of track positioning. You adjust the audio mix—say, to make the narration louder and the ambient audio lower—by boosting or reducing volume on one or more individual tracks. You adjust overall volume by adjusting the volume of the master audio track. You’ll learn to do all this and more in Chapter 14.