Matching Audio Outputs to Clip Items in the Timeline

You can use the Match Audio Outputs command to automatically configure your audio outputs to match the configuration of audio clip items in the Timeline. Using the Match Audio Outputs command is more efficient than manually configuring outputs for mono and stereo clip items in your sequence. For example, if you edit a six-channel audio clip representing a 5.1-channel surround sound mix into your sequence, you can select it and tell Final Cut Pro to assign the proper audio outputs for monitoring.

How Audio Outputs Are Assigned Automatically

Final Cut Pro automatically configures audio output busses according to the selected linked clip items in your sequence. This feature is often used with 5.1-channel surround sound clips, but keep in mind that Final Cut Pro supports only the following 5.1-channel surround sound format:

  • Tracks 1 and 2: Left and right
  • Track 3: Center
  • Track 4: Low-frequency effects (LFE)
  • Tracks 5 and 6: Left surround and right surround

Based on the clip items above, the Match Audio Outputs command would create the following audio output bus groups: stereo 1 and 2 (left and right), mono 3 (center), mono 4 (LFE), and stereo 5 and 6 (left surround and right surround).

Here is how the sequence tracks would be assigned to the audio outputs:

  • Tracks 1 and 2 (left and right): Stereo output 1 and 2
  • Track 3 (center): Mono output 3
  • Track 4 (LFE): Mono output 4
  • Tracks 5 and 6 (left surround and right surround): Stereo output 5 and 6

Using the Match Audio Outputs Command

The Match Audio Outputs command automatically configures your audio outputs to match the stereo and mono groupings of the selected audio clip in your sequence.

Note: In this case, the term audio clip refers to an audio clip item and all other audio clip items linked to it.

To assign matching audio outputs to the selected audio clip in the Timeline
  1. Select a single audio clip with linked audio clip items in the Timeline.

  2. Choose Sequence > Match Audio Outputs, or press Option–Semicolon (;).

    If the current audio outputs for the sequence do not match the configuration of the selected audio items, Final Cut Pro warns you that your sequence outputs will be changed to match.

    Note: Final Cut Pro only supports even numbers of audio outputs. If the selected audio clip spans an odd number of tracks (3, 5, 7, and so on), the Match Audio Outputs command creates the next highest even number. For example, if the selected clip spans seven tracks, eight audio outputs are created.

    Your sequence audio outputs are reassigned so that the selected audio clip’s stereo items are assigned to individual stereo output busses and the clip’s mono items are assigned to individual mono output busses.

    Final Cut Pro also warns you if the new audio outputs exceed the number of available hardware outputs on your computer or audio interface. You can disable this warning by selecting the “Do not warn again” option in the warning dialog.

    To verify your sequence’s new audio outputs, choose Sequence > Settings, then click the Audio Outputs tab to see your settings.