Keyframing Level and Pan Changes

Each audio track has curves for both level and pan, and you can add and edit keyframes to automate level and pan changes over time. This lets you create fade-ins and fade-outs, drop audio levels for voiceovers and other sound effects, and eliminate clipping. You edit the curves directly on the audio waveform in the Audio Editor, allowing you to make accurate edits.

For more information about using keyframes and editing curves, see Keyframes and Curves

Recording Keyframes

You can record keyframes for audio level and pan by clicking the Record button, then moving the sliders in the Audio tab, the HUD, or the Inspector. Recording keyframes for audio level and pan can be useful for trying out changes, and when you want to hear the results in real time.

Adding and Editing Keyframes

In the Audio Editor, level curves are displayed as a purple dashed line, and pan curves are displayed as a blue dashed line. Both curves appear overlaid on top of the audio waveform.

  • Level curves range from –96 to 6 with 0 equivalent to 0 dB (unity gain).

  • Pan curves range from –100 to 100.

The range of values is displayed along the left side of the Audio Editor. Because level and pan curves each use a different scale, you can only see numerical values for a curve if the checkbox for that curve is selected, and the checkbox for the other curve is deselected.

To add keyframes to a level curve
  1. Select the Level checkbox.

    You may want to deselect the Pan checkbox, so that you can see the level curve more clearly, and see its numeric values on the left.

  2. Option-click the purple level curve to add a keyframe.

  3. Drag the keyframe up or down to set the level you want at a specific time.

    Drag down to lower the level, or drag up to raise the level.

  4. Add any other keyframes you need, and drag each one to set its value.

    Figure. Audio Editor showing level and pan keyframes.

    Note: You can also perform these operations in the Keyframe Editor.

To add keyframes to a pan curve
  1. Select the Pan checkbox.

    You may want to deselect the Level checkbox, so that you can see the pan curve more clearly, and see its numeric values on the left.

  2. Option-click the blue pan curve to add a keyframe.

  3. Drag the keyframe up or down to set the pan position you want at a specific time.

    Drag down to pan to the left, or drag up to pan to the right.

  4. Add any other keyframe you need, and drag each one to set its value.

    Note: When modifying Pan values, you can Control-click a keyframe to display a shortcut menu that lets you set different interpolation methods between points on your curve. See Modifying Curves for more information. Only the Linear interpolation method is available for Level.