Add transitions between speed segments

When two adjacent speed segments are set to play at different speeds, you can control how smoothly the video switches between the playback speeds. When there’s no transition between the segments, playback shifts suddenly from one speed to another. By adding a transition between the segments, you can create a more gradual, or ramped, effect. You can also control how quickly that transition takes place.

When you apply effects that automatically create speed segments in a clip (such as Speed Ramp, Instant Replay, and Hold), transitions are automatically added between the newly created segments. A transition appears as a shaded bar on either side of the border between speed segments.

Timeline showing clip with three speed segments and one speed transition

When you create speed segments manually, you can add speed transitions individually, or you can add them to all the speed segments in a clip at once.

Note: You cannot add transitions between forward-playing segments and reverse-playing segments (or vice versa).

Add transitions between all speed segments in a clip

  1. In the Timeline, select a clip that has speed segments.

    Timeline showing clip with speed segments
  2. Choose Speed Transitions from the Retime pop-up menu in the toolbar, so that there’s a checkmark next to the menu item.

    Retime pop-up menu in toolbar

    Transitions are automatically added to the boundaries between speed segments.

    Timeline showing clip with speed transitions applied between all speed segments

Remove transitions from all speed segments in a clip

  1. In the Timeline, select a clip that has speed transitions.

    Timeline showing clip with speed transitions applied between all speed segments
  2. Choose Speed Transitions from the Retime pop-up menu in the toolbar, so that the checkmark is removed.

    Retime pop-up menu in toolbar

    Speed transitions are removed from all speed segments in the clip.

Remove individual speed transitions

To add transitions between some speed segments in a clip and not others, you must turn on Speed Transitions in the Retime pop-up menu, and then remove the transitions you don’t want.

  1. In the Timeline, select a clip that has speed segments.

    Timeline showing clip with speed segments
  2. Choose Speed Transitions from the Retime pop-up menu in the toolbar, so that there’s a checkmark next to the menu item.

    Retime pop-up menu in toolbar

    Speed transitions are added to all speed segments in the clip.

  3. To remove a transition between speed segments, double-click the last frame of the outgoing speed segment in the Retime Editor.

    Timeline showing Speed Transition window above clip with speed transitions applied
  4. Deselect the Speed Transition checkbox in the Speed Transition window, and then click anywhere outside the window to dismiss it.

    The transition is removed.

    Timeline showing clip with three speed segments and one speed transition

Change the duration of a speed transition

After a speed transition is applied, you can change its duration. The shorter the transition, the more quickly the speed ramps from one value to another. The longer the transition, the slower the ramp.

  1. In the Timeline, select a clip that has a speed transition.

  2. If the Retime Editor is not showing, choose Show Retime Editor from the Retime pop-up menu (or press Command-R).

  3. Drag the left or right edge of the shaded bar in the Retime Editor.

    Timeline showing edge of speed transition being dragged to change its duration