Languages

Final Cut Pro X: Sync audio and video

Sync audio and video

Final Cut Pro can automatically analyze and sync the audio and video clips in your project.

For example, if you select two video clips and three audio clips from different sources that were all recorded during the same take, Final Cut Pro automatically analyzes and syncs the clips together into a new clip in the Browser. Final Cut Pro analyzes the clips for sync points such as markers you’ve added, timecode, file creation date, and audio content. If no sync points can be found, the clips are synced at their respective starting points.

For finer control of the syncing process, you can use custom settings to adjust several different parameters.

Synchronized clip created from selected clips in Browser

Sync clips automatically

  1. In the Browser, select the audio or video clips you want to sync.

  2. Do one of the following:

    • Choose Clip > Synchronize Clips (or press Option-Command-G).

    • Control-click the selection and choose Synchronize Clips from the shortcut menu.

  3. In the window that appears, type a name for the synced clip in the Synchronized Clip Name field.

  4. Use the In Event pop-up menu to choose the event in which you want to create the new synced clip.

  5. To sync clips using audio waveform data, select “Use audio for synchronization.”

    This option makes precision sync adjustments using audio waveforms.

    Audio portions of multicam clips synced by audio waveforms
    Note:   Some audio recordings are not suited for use with this feature. Selecting this option may result in long processing times during which Final Cut Pro is not available for editing.
  6. If the automatic settings are not shown, click Use Automatic Settings.

    The automatic settings appear.

    Multicam automatic settings
    Note:   The automatic settings are shown by default, but if the last synced clip you created used custom settings, those settings are shown.
  7. Click OK.

    Final Cut Pro creates a new synced clip in the event you specfied.

Sync clips using custom settings

  1. In the Browser, select the audio or video clips you want to sync.

  2. Do one of the following:

    • Choose Clip > Synchronize Clips (or press Option-Command-G).

    • Control-click the selection and choose Synchronize Clips from the shortcut menu.

  3. In the window that appears, type a name for the synced clip in the Synchronized Clip Name field.

  4. Use the In Event pop-up menu to choose the event in which you want to create the new synced clip.

  5. To show the custom settings, click Use Custom Settings.

    The custom settings appear.

    Multicam automatic settings
    Note:   The automatic settings are shown by default, but if the last synced clip you created used custom settings, those settings are shown.
  6. In the Synchronization pop-up menu, choose how the clips are synced:

    • Automatic: Final Cut Pro syncs the clips automatically.

    • Timecode: Final Cut Pro syncs the clips using timecode recorded in the clips. If you recorded timecode in your clips, choose this option. It’s the fastest and most frame-accurate method of syncing clips.

      Multicam angles synced by timecode
    • Content Created: Final Cut Pro syncs the clips using the date and time information recorded by your camcorder or video recording device.

      Multicam angles synced by content creation date and time

      The Content Created method can sync clips within 1-second accuracy (because in most camcorders the smallest unit in date and time information is 1 second). If you choose this syncing method, consider doing any of the following to make the sync frame-accurate:

      • Select “Use audio for synchronization.” (See step 7.) Final Cut Pro uses the Content Created data as a starting point and then further refines the sync.

      • Manually adjust the sync. (See “Manually adjust or slip a synced clip,” below.)

      Note:   At any time, you can change the Content Created date and time of your source clips in the Browser. Just select one or more clips and choose Modify > Adjust Content Created Date and Time.
    • Start of First Clip: Final Cut Pro uses the first frame in each clip as the sync point.

      Multicam angles synced by first frame in each angle
      Tip:   The Start of First Clip method is useful if you want to use specific range selections of your source clips only. In the Browser, add keywords or the Favorite rating to the ranges you want to use, and then filter or search for the clips. When you create your synced clip, Final Cut Pro uses only the media showing in the filtered view.
    • First Marker on the Clip: Final Cut Pro uses the first marker in each clip as the sync point.

      Multicam angles synced by first marker in each angle
      Tip:   With this method, you can use the first marker to define a region that can be fine-tuned with the “Use audio for synchronization” option (described in the next step). In other words, you don’t need to place the marker exactly—just close enough so that the automatic audio sync feature can sync the clips the rest of the way.
  7. To sync clips using audio waveform data, select “Use audio for synchronization.”

    This option makes precision sync adjustments using audio waveforms.

    Audio portions of multicam clips synced by audio waveforms
    Note:   Some audio recordings are not suited for use with this feature. Selecting this option may result in long processing times during which Final Cut Pro is not available for editing.
  8. If you want the synced clip’s timecode to start at a value other than the earliest timecode value in the selected clips (the default), type a timecode value in the Starting Timecode field.

  9. If you want to change the video properties for the synced clip, select Custom in the Video Properties section and change the settings as appropriate.

    Note:   By default, Final Cut Pro analyzes the selected clips and configures these settings according to the most common clip properties among the clips.
  10. If you want to change the audio or render settings for the synced clip, select Custom in the Audio and Render Properties section and change the settings as appropriate.

  11. Click OK.

    Final Cut Pro creates a new synced clip in the event you defined.

Manually adjust or slip a synced clip

You may need to adjust a synced clip (by slipping the sync, for example). You can do this by opening the contents of the synced clip in the Timeline.

  1. Select the clip in the Browser or the Timeline.

  2. Do any of the following:

    • Choose Clip > Open in Timeline.

    • Control-click the synced clip and choose Open in Timeline from the shortcut menu.

    The Timeline displays the contents of the clip.

  3. Make adjustments to the contents of the synced clip.

    The contents of a synced clip include a clip in the primary storyline and one or more connected clips. You can adjust or slip the sync by dragging the connected clips left or right to change the points at which they connect to the clip in the primary storyline. For more information, see Connect clips to add cutaway shots, titles, and synchronized sound effects.

  4. When you’re done, click the left arrow in the upper-left corner of the Timeline to save your changes and close the contents of the synced clip.

Synced clips appear in the Browser. The original clips are not affected. To easily view all synced clips, you can create a Smart Collection that uses the Type search category set to Synchronized as one of the search criteria. For more information, see Save searches as Smart Collections.

If your synced clip contains audio channels that aren’t being used, you can turn them off. See Configure audio channels.

Last Modified: Sep 16, 2014
Helpful?
Yes
No
  • Last Modified: Sep 16, 2014
  • Article: PH12585
  • Views:

    19052
  • Rating:
    • 20.0

    (1 Responses)

Additional Product Support Information