Well, the Camera and the Photos app on iOS support basic editing whenever it comes to videos. But, beyond a simple trim, there isn’t much you can do. If you have to speed up a video on an iPhone, you need an app. We recommend you to use iMovie. It’s a feature-rich video editor from Apple and if you guys bought a device originally running iOS 8, or later, you already own it. Just read to know all about How to Speed Up a Video iPhone – Tutorial.
Speed up video on iPhone
Open iMovie and then create a new Movie project. Choose the video you’d like to speed up. Just remember that when you speed up a video, and its total duration will decrease. We’re working along with a 20-second clip that will be reduced to almost half. When you select the video, tap ‘Create Movie’. Press the movie on the timeline and you will see editing controls appear at the bottom. The second button on the bottom controls will also let you speed up or slow down a video. Click it.
The speed control will reveal a slider that you guys can use to speed up or slow down the video. If you drag it left, towards the tortoise, the video will slow down as well. And, if you guys drag it towards the right, it will speed the video up. If you only need to speed up a portion of the video, then you should first split it and isolate the part you want to speed up. Choose the split part (tap on it), and then use the speed slider to speed it up as well.
When you’re done, click ‘Done’ at the top left. In order to save the video, tap the share button at the bottom and choose ‘Save Video’. A copy of the video will save to your camera roll where you can then see it.
The speed slider tells you through icons which way the movie speeds up and slows down. However, it also tells you much faster or slower the video is. By default, the counter is set to 1x and when you guys move the knob on the slider, the figure updates to show you how much slower or faster the video is compared to the original speed as well.
Speeding up a video will also impact any sound that accompanies it actually. If the sound isn’t important in the video, you can click on the speaker icon and mute the sound for the whole clip.