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Using sync locks

From: Migrating from Final Cut Pro 7 to Avid Media Composer 5.5

Video: Using sync locks

In the 07_03 subfolder I've got a bin called Sync. Inside there, there is a sequence called fine_cut_interview. You can see that it's got three video tracks and four audio tracks. Now there is a sync relationship between the material on V1 and the audio on A1 and A2, and that's because this material was either captured or imported together into the system. This could be called an Explicit Sync Relationship because Media Composer can detect this relationship and will tell us if it gets changed.

Using sync locks

In the 07_03 subfolder I've got a bin called Sync. Inside there, there is a sequence called fine_cut_interview. You can see that it's got three video tracks and four audio tracks. Now there is a sync relationship between the material on V1 and the audio on A1 and A2, and that's because this material was either captured or imported together into the system. This could be called an Explicit Sync Relationship because Media Composer can detect this relationship and will tell us if it gets changed.

However, by virtue of the edits of working on this piece and putting things together in the current pattern that they're in and the material on A3 and A4, there is an implicit sync relationship between all of the tracks of material. This implicit sync relationship is not detectable by Media Composer. For example, if I parked at the head of interview clip 4 and I entered into Trim mode--let's activate Ripple Trim mode--and we wanted to trim let say the video track V1 and A2, now let's say I added material on to the head of just V1 and A2 here, we would expect that clip now to be out of sync with the audio on A1.

Now when I let go, that's exactly what happened. As you can see, the white line has been invoked on the clip there, and we can see that the clip is now 42 frames out of sync. What's less obvious of course is that we've also altered the sync relationship between V1, A2, A3, A4 and V3, V2. So let undo that, and I would like to re-perform the same trim but this time using my sync locks/ I am going to switch these on. What these do, they act to preserve the sync relationship between material on different tracks, regardless of whether the sync relationship is explicit or not.

So, for example, this time when I drag out and add material onto the head of interview clip 4, notice that the system ignores my command. It's basically saying, "I can't complete that command without throwing the sequence out of sync." Alternatively, if I trim the other way, and I push interview clip 01 on V1 and A2 further down the timeline, in order to preserve the sync relationship, Media Composer will now open up a gap on the other tracks so that nothing will slip out of sync relationship.

Now let's undo that because I would like to show you a different variation on the same trim. Because maybe I do want to alter the beginning point of interview clip 4, I don't want to split my music on A3 and A4 or my Broll on V3 and V2. So this time if I repeat the trim and I push my material further down the timeline, now just these tracks will update, leaving my Broll and music alone. Because I still have the sync locks on V1, A1, and A2, if I try this trim now, notice that it's still going to bring A1 along for the ride in order to preserve sync.

Using sync locks is most useful when making adjustments to a very complex sequence and you want to make sure that nothing downstream from where you are working will get thrown out of sync.

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  1. 3m 43s
    1. Welcome
      53s
    2. Hardware and software requirements for this course
      1m 6s
    3. Using the exercise files
      1m 44s
  2. 52m 17s
    1. Exploring the similarities and differences
      8m 6s
    2. Comparing the interfaces
      8m 17s
    3. Clips, bins, folders, and the Project window
      9m 32s
    4. Viewing, selecting, navigating, and playing clips
      6m 5s
    5. Marking clips and using the Timeline window
      6m 32s
    6. Creating basic sequences
      9m 20s
    7. Accessing clips from other projects
      4m 25s
  3. 45m 24s
    1. Project structure, formats, frame rates, and the Format tab
      11m 31s
    2. Comparing backup structure
      9m 51s
    3. Organizing media and project assets
      5m 32s
    4. Bringing media into the project
      8m 19s
    5. Understanding media resolutions and locations
      10m 11s
  4. 30m 59s
    1. Exploring site, project, and user settings
      7m 39s
    2. Customizing user settings and keyboard layout
      6m 52s
    3. Using toolsets and workspaces
      6m 36s
    4. Customizing the Bin and Timeline views
      5m 18s
    5. Creating a custom tool palette
      4m 34s
  5. 1h 0m
    1. Linking to multimedia files using Avid Media Access (AMA)
      15m 8s
    2. Importing video, audio, and graphics
      15m 40s
    3. Deleting clips and using the Media tool
      4m 30s
    4. Consolidating
      5m 20s
    5. Transcoding
      9m 58s
    6. Managing an offline to online workflow (with AMA and batch importing)
      9m 38s
  6. 38m 39s
    1. Customizing bin layouts, columns, and tools
      11m 6s
    2. Creating subclips and subsequences
      11m 3s
    3. Using locators for organizing, logging, and editing
      10m 54s
    4. Searching using metadata and PhraseFind
      5m 36s
  7. 46m 10s
    1. Getting tracks into the timeline
      6m 59s
    2. Touring the Timeline window
      9m 41s
    3. Using drag, drop, and gestural editing techniques
      5m 48s
    4. Using timeline selections
      7m 1s
    5. Editing with the keyboard and interface buttons
      9m 45s
    6. Editing vertically
      6m 56s
  8. 56m 31s
    1. Using basic trim tools
      4m 59s
    2. Using smart trim tools
      7m 32s
    3. Combining trim tools
      7m 7s
    4. Using the Trim mode
      8m 0s
    5. Trimming with transition effects
      3m 48s
    6. Using sync locks
      3m 10s
    7. Using Slip and Slide mode
      7m 56s
    8. Setting up the timeline for multi-cam editing
      8m 41s
    9. Multi-cam editing
      5m 18s
  9. 33m 16s
    1. Exploring the audio environment
      5m 29s
    2. Understanding audio basics
      4m 25s
    3. Using the Audio Mixer and audio keyframes
      8m 29s
    4. Applying audio effects
      5m 5s
    5. Importing audio and input settings
      6m 19s
    6. Exporting audio and output settings
      3m 29s
  10. 1h 1m
    1. Creating freeze frames and motion effects
      7m 11s
    2. Using timewarp effects
      4m 40s
    3. Adding transition effects
      7m 33s
    4. Using segment-based effects and nesting effects
      8m 15s
    5. Compositing with keyframes
      11m 0s
    6. Creating titles
      8m 15s
    7. Adding titles and using them in sequences
      7m 27s
    8. Using the color correction interface
      7m 34s
  11. 10m 18s
    1. Preparing and outputting master sequences
      10m 18s
  12. 21s
    1. Additional resources
      21s

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