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Record changes to sound tracks

Each channel of the Audio Mixer corresponds to an audio track in the Timeline. You can use the controls in each Audio Mixer channel to record changes to its corresponding audio track. For example, to vary the volume level of clips in the Audio 1 track, use the Volume slider in the Audio 1 channel of the Audio Mixer.

  1. In a Timeline panel or Audio Mixer panel, set the current time to the point where you want to start recording automation changes.
    Note: In the Audio Mixer, you can set the current time at the top left corner of the panel.
  2. In the Audio Mixer, choose an automation mode from the Automation Mode menu at the top of each track you want to change. To record changes, choose a mode other than Off or Read. (See Audio Mixer automation modes)
  3. (Optional) To protect the settings of a property during the Write automation mode, right-click (Windows) or Control-click (Mac OS) an effect or send and then choose Safe During Write from the pop‑up menu.
  4. In the Audio Mixer, do one of the following:

    • To start automation, click the Play button  in the Audio Mixer.

    • To play the sequence in a continuous loop, click the Loop button .

    • To play from the In point to the Out point, click the Play In To Out button .

  5. As the audio plays back, adjust the options of any automatable property.
  6. To stop automation, click the Stop button .
  7. To preview changes, change the current time to the beginning of your changes, and click the Play button  
  8. To view the keyframes you created, do the following:
    1. Click the Show Keyframes button  at the head of the audio track you changed, and select Show Track Keyframes.
    2. Click the clip header toward the top left of an audio clip you changed, and choose from the drop-down menu the type of change you recorded. For example, if you changed the volume, choose Track > Volume.

    This step will show the keyframes you recorded with the Audio Mixer along the yellow change line. You can edit these keyframes like any others in the Timeline.