Recent iPhone models and iOS versions have a new feature called SLO-MO which allows user to record slow motion videos using iPhone. But it lacks the flexibility to slow down video, speed up video, edit iPhone video speed like 1/4X, 1/2X, 3/4X, 2X, 3X, etc. And if you use an earlier iPhone model or iOS version, the stock Camera app does not support slow-motion or time-lapse video at all. Today, we will show you how to edit video playback speed on iPhone. You can turn normal videos to slow-motion videos or speed up videos on iPhone.
Edit video playback speed on iPhone using Videoshop
Get this iPhone video editor app from Apple App Store. Launch the video editor on iPhone, you will be prompted to either record new video or import existing video. Add the video to the video editor, you will then see a screen like this.
At the lower section of the video editor, you can find a toolbar with various tools. Slide left or right to browse through this toolbar. Select Speed, you will then be taken to the video speed control screen.
To adjust video speed on iPhone using this video editor is very easy. Simple drag the speed handle to the left or right to slow down or speed up the video playback speed. Then tap the Play button to preview the change and optionally adjust video speed again until you are satisfied. Finally touch the Done button at the upper right corner to save the change.
Change video playback speed on iPhone using Filmorago
Except the above video editor app, you can also use Filmorago video editor to change video speed on iPhone. Start this video editor. Tap on Create New Video, then touch Video and add video from your Camera Roll to the video editor.
On the right side of the video viewer window, you can find Themes, Music, Transitions and other options in this vertical bar. Swipe up to pull up more options and choose Edit Tools.
After that you can see a tool bar at the bottom from which you can find trim clip, filters, overlays, elements, titles, speed, volume, duplicate, rotate and so on. Tap Speed, you will see all preset video speed you can choose, such as Slowest(1/4X), Slower(1/2X), Slow(3/4X), Normal speed, Fast(2X), Faster(3X), Fatest(4X).
To edit video play speed,you can play the video in the viewer and pause when you find the start point, then touch the video speed at the bottom, you will then see the rest part of the video has been set to the newly selected play speed. Continue play the video until you reach the end point or frame of the video, then choose Normal speed to set the remain part of the video back to normal speed or choose a different play speed and repeat the steps to set various fragments in the same video with various playback speed. You can mix normal speed, slow-motion and fast speed in the same video clip.
Preview the video when you have finished editing the video speed on iPhone and tap OKAY icon at the top right corner and follow on-screen tips to save the video to iPhone Camera Roll or share it via email, WhatsApp, Facebook, Twitter, Instagram, Vimeo, etc.