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How to Make Slow/Fast Motion Videos (Speed Up/Slow Down Effect)

Fast Motion/Slow Motion effects, also known as Speed Up/Slow Down effects in Windows Movie Maker and Windows Live Movie Maker, which make the video clips play faster or slower than original speed. Usually, the effect is used to make videos dramatic or funny.

Now Wondershare Video Editor also allows you to quickly make fast motion and slow motion videos. Read on to see how to speed up or slow down your creativeness. Below is the free trial verion of Wondershare Video Editor (Windows/Mac).

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Step 1: Add video files to the program

Click "Import" on the primary window and select the video files from your computer to add them into this program. Alternatively, you can simply drag and drop files to the User's Album. Wondershare Video Editor supports almost all regular video formats, such as MP4, AVI, WMV, MOV, FLV, M4V, MPG, VOB, ASF, 3GP, 3G2, F4V, MPEG, TS, TRP, M2TS, MTS, TP, DAT, MKV, DV, MOD, NSV, TOD, EVO, etc.

slow motion and fast motion

Step 2: One click to speed up or slow down

Next, drag videos from the User's Album to the video track on the Timeline, and then double-click the added video to open video editing panel. Locate the Speed option, and the speed numbers will indicate how fast or slow the motion effects will be. Adjust to the speed you want.

  • 0.5: half of the original speed (Slow Down, Half)
  • 1: The original speed
  • 1.5: 1.5 times the original speed (Speed Up, 1.5 x Speed)
  • 2: Double the original speed (Speed Up, Double)

fast slow motion video

Note that you can also click the "Audio" tab at the bottom to adjust its volume, pitch, set fade in/fade out effect, etc.

Step 3: Export fast/slow motion video

When you have finished adjusting the video speed, click "Create". You can save video in any popular formats by clicking "Format". If you want to play your new video creation on your iPod, iPhone, iPad, click "Device" and select the icon for your devices. You can also share your videos on YouTube directly or burn video to DVD disc.

save speed up, slow down effect

Tips: Besides Fast motion and slow motion video effects, you could also change the speed and pitch of the audio to change the voice. Give it a try.

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Product-related questions? Speak directly to our Support Team >>

Yes you can do that with Wondershare. After you drag your video to the video track on the timeline, split the video clip into parts(read this guide to see how to split videos: http://www.wondershare.com/video-editor/edit-a-video-clip.html) Once your video is splited into different parts, choose those that you want faster and double click on it to adjust the video speed. All other parts will keep the original speed.
Can you make parts of your video faster/slower than others??
Hi, Biya, our software can't do this now, I will send your requirements to our R&D department. Thanks.
Is there any way to create the "rewind effect" ?
I found the way of doing it. Thanks
Hello, how can i slow down/fast just a part of the video and keep it at normal speed?
when i double click it only shows edits for added in motions like a "slide" ive clicked edit and advanced edit and neither will show me the speed
Lil Race
I am making a music video and the clips lag inbetween switching over to other slides/clips and i need it to be on point for the lip singing to be sync'd with the audio... WHy is that?
Hello I have the proper speed I want, but when ! Output it my project moves too fast. why is the output slower than from the preview? .
Hi, actually, after you load the video to the program, it will be compressed to a lower resolution as 512*288 to set the preview window, that is why the lags occurred. And it will get even worse when you edit the vidoes. But the output quality will not be affected. Sorry that we do not have a better solution to get rid of this now. We are still working hard on it, hope you could keep an eye on our website. Thanks!
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