Specify the duration for preroll and postroll pauses

You can set the length of preroll and postroll for clip and sequence previews in the General pane of the Preferences dialog box.
Note: The Preroll and Postroll fields are different from the Preroll setting in the Device Control pane of the Preferences dialog box. The Preroll setting in the Device Control pane affects the control of external devices such as VTRs and camcorders.
  1. Select Edit > Preferences > General (Windows) or Premiere Pro > Preferences > General (Mac OS).
  2. In the Preroll and Postroll fields, type in the number of seconds for each.
  3. Click OK.