![]() ![]() ![]() To create both fast motion and slow motion in the video, first, you should scroll through your video and look for the key moments, and click the Add keyframe button to add new keyframes as you like. To slow down the video, drag one of the keyframes further to the other one. If you want to speed up the whole video, drag one of the keyframes closer to the other one. Then, you can see two keyframes in your video layer, one at the beginning of the video, and one at the end of the video. In a composition or timeline panel, right-click on the footage, and select Time > Enable Time Remapping. Follow the instructions in above step 1 to add your video in After Effects. It means you can make parts of a video go faster, parts go slower, and parts keep regular. Through time-remapping, you can create fast motion and slow motion in a video. In After Effects, you can also use the time-remapping effect to change the time frame of your video footage by increasing or decreasing the speed of the time frame between your chosen keyframes. Related: How to Export After Effects to MP4 with/Without Media Encoder You can continue to edit the video or export it. Go to the project panel, click on your composition and choose Composition Settings, change the Duration number to the current video length in the Composition Settings window, and click OK. You should increase the duration of the Composition to view the video completely. Once you go back to the timeline, you’ll find the video timeline still keeps the original length. Instead, to slow down the video in After Effects, you should change the Time Stretch to a number greater than 100.įor example, if you change the Time Stretch number from 100 to 200, you will slow down the video and the duration will be doubled. Under Time Stretch, you can see the New Duration number is cut in half. To speed up the video, you should change the Stretch Factor value to a number less than 100.įor example, if you enter 50 in the Stretch Factor box, you’ll double the video speed. The Time Stretch window appears, and you’ll see the original duration of this video and the Stretch Factor value is 100. In the timeline, right-click on the video layer, and select Time > Time Stretch. Then, drag and drop the video into the timeline. Launch After Effects on your computer, click File > Import > File to choose your video, and click Open. Here’s how to speed up or slow down a video in After Effects using time-stretching. Time-stretching refers to speeding up or slowing down an entire video at the same speed, and the audio and original frames in the clip will be redistributed along the new duration. In After Effects, it’s easy to create fast motion and slow motion by using time-stretching and time-remapping effects. How to Speed up/Slow Down Video in After Effects To learn more differences between the two Adobe video editors, you can check this post: After Effects vs Premiere Pro: Which Program Is Right for You. You might already know how to speed up and slow down videos in Premiere Pro, but how to speed up video in After Effects?Īdobe Premiere Pro and After Effects are suitable for different parts of the video post-production process. The latter is mainly used to create motion graphics and add visual effects to your video.īut you can still do some basic editing in After Effects like video playback speed adjustment. The former is mainly used to cut, arrange, and enhance your footage. An Easier Way to Speed up/Slow Down VideoĪdobe Premiere Pro and After Effects are both powerful applications for video editing.How to Speed up/Slow Down Video in After Effects.This post from MiniTool MovieMaker will teach you how to speed up video in After Effects and how to create slow motion in After Effects with 2 methods. ![]()
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