Lightworks is one of the world’s most used video editing programs. The reasons why so many users use it are a lot, but there are mainly two: it’s easy to use and it’s free. Beginners and amateurs, in particular, can find in Lightworks a valid alternative to expensive video editing software with advanced features. Lightworks allows you to perform basic editing, but it also has some advanced features so that you can create professional-looking videos.
One of the many things you can do with Lightwork is to slow down (or speed up) sections of videos (other than the entire video). But how to do it? In this tutorial, we’ll find out how to do it.
Step 1: Import the video
Of course, if you want to slow down or speed up a video in Lightworks, the first you need to do is to import the video into Lightworks. This passage is super easy: all you need to do is to click on Add Clip and select the video. The clip will appear on the clipboard.
Step 2: Move the video on the timeline
At the bottom of the Lightworks window, there is the timeline. To slow down your video, add it to the timeline by simply dragging and dropping it there.
Step 3: Adjust the speed
On the timeline, right-click on your piece of video and then select Speed. Now you can manually type the wanted speed or you can use one of the preset percentages. For example, if you select 50%, the video speed is halved and the video would last twice as long as the original.
To speed up the video, you need to perform the same steps but select a higher percentage, for example, 120%.
How to slow down or speed up sections of a video
What if you have a long video, and you want to slow down just a section of it? In this case, the first thing you need to do is to separate the part of the video that you want to slow down (or speed up) from the rest of the video. You can do it by simply using the cut tool. Now, you can right-click on the section of the video that you want to adjust, and select the wanted speed for it.
When you play the entire video, you want to see any cut; you’ll just see the speed changing at a certain point and then turning back the same as before after a while.
Video and audio sync
The main thing you should pay attention to when playing with videos’ speed is the video-audio sync: if you change the speed of either video or audio, without changing the other, you’ll lose the synch between audio and video. So make sure you apply the same speed adjustment to both audio and video to avoid losing the sync!