Conforming Tape-Based Material > Creating and Editing EDL Files > Editing an EDL >

# Editing and Creating Timewarps

You can edit an existing timewarp or create a timewarp in your EDL. When you edit a timecode entry of an event with the Lock Speed option disabled, no other entries are affected. This results in a speed change because the source duration differs from the record duration.

For example, if you increase the Source In entry of an event by 5 seconds, the record clip of the same event is 5 seconds shorter than the source clip. The result clip is timewarped when assembled. No other entries are affected. See Assembling EDLs.

Timewarps are represented in the Speed column of the EDL. If the Speed value is blank, the event is not timewarped. If there is a Speed value, the event is timewarped.

(a) Speed value

To edit or create a timewarp:

1. In the Import EDL menu, from the Editing group, disable Lock Speed.
2. In the EDL, click the source or record timecode entry for the event that you want to edit and enter the new value.

   The value of the timewarp appears in the Speed entry. You may also click directly in the Speed box to change the entry. If the event is already a timewarp, editing any timecode of that event changes its speed value.

You can view the speed value in either percentage or frames per second. Select the View mode in the EDL Preferences menu. See Preferences Menu.