Modern smartphones, including Xiaomi devices, allow you to create cinematic shots, but you can not always activate the Slow Mo mode before shooting. Often the need to slow down the movement occurs after the video is recorded in a standard mode of 30 or 60 frames per second. Fortunately, the MIUI ecosystem and third-party applications provide powerful tools for post-processing.
In this article, we will take a look at how to turn a regular recording into a smooth slow-motion video using only your phone’s resources, and you’ll learn about the built-in gallery features, professional editors, and cloud services that can do the job without losing quality.
Use of the built-in video editor Xiaomi
The fastest way to change the playback speed is to use the regular system tools. Owners of Redmi and POCO smartphones can find the necessary functionality directly in the Gallery app. To do this, open the desired clip and click the Edit button (usually this is the icon of a pencil or sliders).
In the menu that opens, find the Speed or Speed tool, and the interface will give you a slider that you can move around and you can choose the speed you want to move, and the system will automatically recalculate the frames, creating a smooth effect, but it's worth remembering that when you slow down a normal video (not in slow-mo), you can see twitchy images.
⚠️ Attention: The embedded editor does not create new intermediate frames (interpolation), but only stretches existing ones. FPS, slowing down will lead to a surge.
To get the best results, try experimenting with different parts of the video, you can only apply the effect to a particular scene, leaving the rest of the scene at normal speed, which will add speakers and focus the viewer's attention on the key point.
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For smooth slow-mo, try to shoot the original video in good light. Xiaomi camera in such conditions exposes a shorter shutter speed, reducing the lubrication of objects in motion.
Professional processing in the CapCut application
If standard tools are not enough, the popular CapCut editor will come to the rescue. This app is available on Google Play and has advanced processing algorithms. After importing a video, click on the track in the timeline and select the option “Speed” -> “Normal” or “Curves”.
Curves allows you to create complex speed changes: a smooth increase in deceleration and a sharp return to normal. It looks much more professional than a linear change. The app automatically adjusts the duration of the clip and offers audio optimization.
The special feature, called "Smooth Slow-mo," is that the AI algorithm generates extra frames, making motion incredibly smooth even in a video, and it solves the main problem of post-processing, which is the lack of FPS.
- 🎬 Import the video into the project and highlight the clip on the timeline.
- 🐢 Select Speed and activate Curves mode for fine-tuning.
- ✨ Enable the option “Make it smoother” for frame generation.
- 💾 Export the result in the permit 1080p or 4K.
Creating Slow Mos through Google Photos
Xiaomi owners often use Google Photos to store their library, unaware of its hidden editing capabilities, and it also works at speed, albeit more basic than specialized applications.
Open the video in the app, click Change, and find the speed slider. The interface is minimal, allowing you to quickly edit without too much settings. It's ideal for fast content preparation for social networks.
The main advantage of this method is that you don't have to install additional software, but the functionality is limited: you can't adjust the speed curves or apply the effect to only part of the frame, and the changes apply to the entire file.
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Google Photos is the best choice for quick editing without installing unnecessary apps, but for complex editing, it is better to choose CapCut.
Online services for speed change without installing programs
Sometimes the phone's memory is busy, or you need to urgently process the file on a computer synchronized with your Mi Cloud account, in which case online editors working directly in the Chrome or Mi Browser browser help out.
Services like 123apps or Clideo allow you to download a file, select a slowdown rate (0.25x, 0.5x) and download the result. The process is simple: downloaded, processed, downloaded. No registration is often required.
The disadvantage of this approach is the dependence on the speed of the Internet connection. 4K-The file and its subsequent download can take a long time, and free versions of services often watermark.
| Method | Quality of processing | Difficulty | We need the Internet. |
|---|---|---|---|
| Xiaomi Gallery | Average. | Low. | No. |
| CapCut (AI) | High. | Medium | Preferably. |
| Google Photo | Basic | Low. | No |
| Online services | Depends on the server. | Low. | Yes. |
Google Photos only requires the internet to upload the source to the cloud if it is not already there.
Technical nuances: FPS and interpolation of personnel
To understand why video can slow down, you need to understand the terminology: FPS (Frames Per Second) is the number of frames per second. Standard video is shot at 30 or 60 FPS.
When you slow down a 30-frame video in half, the player needs to show 15 frames per second in real time, but it keeps running at 30 frames. It has nothing to show in the second half of the cycle, so it either duplicates the frames (trucks) or stretches the time (brake).
⚠️ Warning: Interpolation requires a powerful processor. Older Redmi models require processing. 4K Videos with the Smooth Slow-mo option enabled can take a long time.
Modern algorithms at CapCut and other editors analyze the movement of pixels between frames and draw intermediate states, which allows you to get a smooth picture even from a "twitchy" source, but can create artifacts around fast-moving objects.
Frequent errors when slowing down video
Beginners often make the typical mistakes that spoil the impression of the video, the first being excessive slowing down, and turning a 3-second jump into a 30-second scene rarely looks good unless it's an artistic device.
The second mistake is to beep the sound. When you slow down, the audio also gets stretched to become a low-frequency hum. Most editors default to turning the sound off or suggest replacing it with music. Remember to do this so you don't shock the viewer.
☑️ Checklist before preservation
Also, you should consider the orientation of the screen. If you shoot vertically and edit in a horizontal interface, make sure you don't crop important parts of the frame when framing for social media format.
How to maintain quality in export
After all the manipulations, it is important to save the result correctly. In export settings, always choose the maximum available resolution. If the source was in 4K, do not put 720p, otherwise you will lose the detail.
Pay attention to bitrate. High bitrate means better quality, but larger file size. Social media is best for a balance between quality and weight, usually with "Recommended" or "High Quality" settings.
Remember that re-saving video (rendering) reduces the quality a little each time because of the codec clamping. Try to make all the edits in one pass, so that you do not start the encoding process repeatedly.