Modern Xiaomi Redmi smartphones offer powerful multimedia capabilities that are often underestimated by ordinary users, and built-in tools allow not only viewing footage, but also fully editing it by adding soundtracks directly to the system interface, eliminating the need to download heavy third-party applications for simple editing tasks.
The process of overlaying the audio track can vary depending on the version of the MIUI shell or the new HyperOS installed on your device. However, the basic principles of how the video editor works remain similar on most models, from the budget Redmi Note to the flagship series.
In this article, we'll take a look at the full-time editing techniques, and we'll look at alternatives for more advanced audio work, how to sync music to video, adjust the volume of the original clip, and keep the result high-quality. Creativity is all you need.
Use of the built-in video editor MIUI
The fastest way to add music is to use the gallery’s native functionality. Xiaomi phones have a powerful video editor preinstalled, which activates automatically when you select the appropriate file. First, open the Gallery app and select the video you want to improve.
Once you open the video, click on the Change button (usually the pencil icon or slider icon at the bottom of the screen). In the tool menu that opens, find the section related to audio or music. In different versions of the firmware, it can be called Audio, Music or have a note icon. This is where the main magic of editing takes place.
The system will offer several options for adding sound: you can choose a track from the built-in library, take music from phone files or extract audio from another video. If you select a file from memory, the editor will automatically upload it to a timeline. Note that the file format should be supported, such as MP3 or M4A.
⚠️ Note: When using the built-in editor, some complex audio file formats may not be recognized. If no music is added, convert it to standard audio file formats. MP3 beforehand.
Once you select a track, it will appear on the timeline below the video sequence, you can drag and drop it by cutting off the extra parts at the beginning or end. Use the timeline zoom function to pinch your fingers across the screen to get the rhythm right.
Step-by-step: Adding a track from memory
Let's take a closer look at the algorithm to rule out any errors. First, make sure that the music file you want is already uploaded to your Redmi memory. If you downloaded a song from the Internet, it's probably in the Download or Music folder.
Run the video editor through the gallery and go to the audio add-on menu. Select the option From Files or Local Music. Opens the explorer where you want to find the desired track. The system can request permission to access media files — be sure to confirm it, otherwise the editor will not see your songs.
☑️ Pre-installing check
When a track is added, look at two parallel tracks: video and audio. Often the original video has a sound that interferes with new music. To fix this, find the speaker icon on the video track and reduce the volume of the original to zero or minimum.
Next, you need to synchronize the beginning of the music with the video sequence, move the playback slider to the desired point and trim the beginning of the audio file with the function of Divide or Cut, which allows you to start the music from the moment the action on the screen occurs.
Timeline and synchronization
Quality video content requires precise synchronization. In the interface of the editor Xiaomi timeline allows you to manipulate the duration of the clip and audio track independently. If the music is longer than the video, it will automatically cut when exported, or you can stretch the video by adding a static frame.
To fine-tune it, use the Fade In and Fade Out feature, which makes the transitions between silence and music soft, which is especially important for atmospheric videos. In the audio effects menu, you can often find presets of fading.
If you're mounting a dynamic clip, you may need to cut the music track into pieces. Click on the audio track at the point where there should be a break, and select the Divide tool. Remove the extra piece, and move the remaining pieces close together.
The secret to pruning accurately
Remember to periodically review the result in full screen. What looks smooth on a small preview may have a dissynchron when fully played. Adjust the position of the track until the visual row and sound become a single unit.
Comparison of embedded tools and third-party applications
While MIUI is easy to fix, it is inferior to specialized applications in functionality. Understanding the differences will help you choose the right tool for a particular task. Below is a table of comparison capabilities.
| Function | Xiaomi's Built-in Editor | Third-party applications (CapCut, VN) |
|---|---|---|
| Adding music | Basic, from the files | Extract from video, library of effects |
| Multilayeredness | One audio track. | Several tracks of music and sound |
| Precision of pruning | Medium | Tall, frame-by-frame. |
| Exports of quality | Up to 1080p/60fps | Up to 4K and setting up bitrate |
If you just need to put a background on a storyboard video, a built-in editor is enough. It works faster and doesn't require any additional software, but for complex projects with multiple music layers, you'd better go to CapCut or InShot.
Third-party apps also offer automatic beat-sing, where the music itself adjusts to the rhythm of the video. Xiaomi's in-house editor doesn't have that option, all the actions are done manually, which gives more control, but takes more time.
Volume setting and audio effects
One of the most common problems is volume imbalance. Original sound can be too quiet, and added music can drown out voices. In Redmi editor, you can adjust the volume of each track separately.
Click on the video clip on the timeline, select Volume and reduce the value. Then click on the added music file and, conversely, increase its level. The optimal ratio is considered where the music is about 30% of the total volume if the video is speech.
Also worth paying attention to is the equalizer. Some firmware versions have basic timbre settings available. If the voice in the video sounds deaf, try adding a little high frequencies. If the music is too sharp, attenuate high frequencies.
⚠️ Warning: Don’t set the music volume to 100% if there is dialogue on the video, this will lead to clipping (distortion of sound) and make speech indistinct on the speakers of the smartphone.
To create a professional effect, use key volume frames (if the functionality of the MIUI version allows), this is when the volume of the music automatically decreases during speech and increases in pauses. In simple editors, you will have to do this manually, cutting the track.
Export of finished video and quality preservation
The final step is to save the result. Export quality depends on the selected settings. In the save window, Xiaomi usually offers a choice of resolution: 720p, 1080p or 4K. Always choose the maximum available resolution that matches the source.
An important parameter is frame rate (FPS). If you've been shooting 60 frames per second, be sure to choose 60 fps when exporting. Decreasing to 30 fps will make the movement less smooth, which is especially noticeable in dynamic scenes.
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The choice of 1080p and 60 FPS when exporting provides the best balance between image quality and file size for social media.
The rendering (save) process can take anywhere from a few seconds to a few minutes depending on the length of the roller and the power of your Redmi CPU.Do not fold the application or lock the screen during this process to avoid corruption of the file.
Once the save is complete, the system will suggest sharing the video or deleting the source code, and it is recommended to first check the finished file in the gallery, making sure that the sound is not lagging behind or interrupted.