Modern smartphones have long turned into powerful multimedia centers, and the Xiaomi Redmi Note 9 model is no exception. Users often face the need to keep what is happening on the display: whether it is an important moment in the game, a bug in the application or just an interesting dialogue in the messenger. Standard Android operating system tools in conjunction with the MIUI shell provide all the necessary tools for this, but their proper use requires knowledge of certain nuances.
The main challenge that device owners face is to set up audio, the default system may not activate the capture of internal sound or, conversely, record only noise from the microphone, and understanding how the screencaster works in your version of the firmware will avoid frustration and reshoots.
In this article, we will discuss in detail the process of setting up and using the screen recording function, you will learn how to switch between sound sources, change the resolution and frame rate, and where to look for ready-made files after the session is over.
Built-in Screencaster Tool in MIUI
The MIUI operating system on the Redmi Note 9 already has an image capture app pre-installed, hidden in the Tools folder or called through the Control Panel, a native solution optimized by Xiaomi developers and does not require third-party software installation, saving battery power and processor resources.
To start, you need to unlock the device and swipe from top to bottom to open the “curtain” of notifications. Among the icons of the quick settings, you should find the icon “Screen Record”. If it is not on the first page, swipe left or click on the edit button (three dots or a pencil) to add a widget to the main screen of the panel.
⚠️ Note: In some global firmware versions or when using the European region (EU) The icon may be called Screencaster or be called Screen Recorder.
Once activated, a floating control menu will appear on the screen, allowing you to pause, take screenshots or draw over the image in real time.
The quality of the final image is directly dependent on the load on the GPU. If you notice that the device has begun to heat up or the image has started to twitch, it makes sense to reduce the quality settings in the settings menu before starting a new session.
Customization of sound sources: microphone and system
The most important step in preparation is the configuration of the audio stream. Unlike simple screenshots, video recording requires a clear understanding of where the sound will come from. In the screencaster settings menu, Xiaomi offers three main audio modes, and choosing the right one depends on your goals.
The first mode is Microphone, in which case the device will record all the external sounds: your voice, the noise of the environment and the sound coming from the speakers of the phone, which is suitable for creating video comments or recording conversations over the hands-free network, but the quality can suffer from extraneous noises.
The second mode is System Sounds, which is ideal for recording games, watching videos or showing how the interface works, and it is digitally transmitted directly, without loss or distortion, and the third mode is Do Not Record, which is useful if you plan to overlay music or voice recording later in the editing process.
- 🎙️ Microphone: Records external sounds through built-in sensor.
- 🔊 Internal sound: clean digital stream from the system.
- 🔇 No sound: no audio track is created.
Switching between these modes occurs in the top menu of the floating control panel. By clicking on the microphone icon, you cyclically change sources. Note: when selecting internal sound, system notifications and incoming calls can also be recorded if the Do Not Disturb mode is not enabled.
It should be borne in mind that when talking on a regular phone or in some messengers (for example, WhatsApp, Telegram), the recording of internal sound can be blocked by the system for the sake of privacy, in which case the screencaster will automatically switch to the microphone or stop recording audio.
Quality parameters: resolution and frame rate
Before you start capturing, you should go to the Screen Recording app settings via the main smartphone menu. The path usually looks like this: Settings → Screen Recording app or by long-term clicking on an icon in the tool folder. Here are the key parameters that affect the weight of the file and the smoothness of the image.
Video resolution is the number of pixels horizontally and vertically. For the Redmi Note 9, which has a screen resolution of 1080 × 2340, the optimal choice will be 1080p. Setting a lower resolution, such as 720p, will help save space on the drive, but the text on the screen may become less clear.
Frame rate (FPS) determines how many times per second the image is updated. The standard value is 30 frames / s. For dynamic games such as shooters or racing, it makes sense to set 60 frames / s. This will make the movement smooth, but the load on the processor and battery will almost double.
Bitrate is a parameter for advanced users. High bitrate improves detail in fast-changing scenes, but the file will weigh much more. If you plan to upload video to the messenger, you better choose medium or low bitrate for fast download.
| Parameter | Recommended value | Impact |
|---|---|---|
| Permission | 1080p | Clearness of image |
| Frequency (FPS) | 60 (for games), 30 (for interface) | Smoothness of movement |
| Orientation | Automatically. | Conformity to screen rotation |
Remember that maximum quality recording requires free space: a minute of 1080p/60fps video can take anywhere from 50 to 100 megabytes depending on the bitrate and complexity of the picture on the screen.
💡
Before long-term recording in high quality, clear the application cache or free up a couple of gigabytes of memory so that the system does not interrupt the process due to space shortage.
Use of third-party applications for recording
If MIUI isn’t enough, Google Play offers a variety of alternatives, and third-party solutions often have more flexible codec settings, the ability to draw with a stylus or stream directly to platforms like YouTube or Twitch.
One of the most popular solutions is the XRecorder application or AZ Screen Recorder. They require special permissions, like "Overlaying on top of other windows" and "Audio recording." The installation process is standard: download. APK-file, install and give the necessary access rights.
The main advantage of third-party software is the ability to record sound from internal applications that block a standard screencaster, and such programs often have a built-in editor to crop video immediately after recording is completed.
⚠️ Warning: Be careful when installing unknown apps. Screencasters have access to everything that happens on your screen, including passwords and correspondence. Use only proven high-ranking programs.
However, it is worth considering that third-party applications can consume more battery resources and create conflict with Xiaomi system services, in some cases, this leads to spontaneous closure of a record or a decrease in performance in games.
Where to find saved videos and how to share them
Once you've finished recording, the file is automatically stored in the device's memory, and you can find it in a number of ways, and the easiest way is to open the Gallery app and go to Screen Recorder, where all the videos are sorted by date of creation.
Alternative path through file manager: go to the root folder of internal memory, then DCIM → screen_recorder. This is where the files are physically stored. The default save format is — MP4, Compatible with most players and social networks.
To quickly send videos, you can use the Share function directly from the gallery interface. The system will suggest sending a file via Mi Drop, Bluetooth, messengers or uploading it to cloud storage. When sending it through instant messengers (Telegram, WhatsApp), the quality can be compressed.
- 📁 Gallery: Album "Screen Records».
- 📂 Conductor: folder DCIM/screen_recorder.
- 📤 Share: button in the viewing interface.
If you've recorded a long video and want to send it to someone, but the file is too big, use the built-in editor in the Xiaomi Gallery, which allows you to cut the extra seconds at the beginning and end, as well as compress the video for transfer.
☑️ Pre-recording checks
Frequent problems and ways to solve them
Despite the stability of the Redmi Note 9, users may encounter typical errors, often interrupted by itself or video is not sounded, and discuss the main causes and methods of their elimination.
The first problem is the lack of sound. As mentioned earlier, this is often a source error. Check if the No Sound mode is up and the app is locked in the privacy settings. Pathway: Settings → Apps → Screen Recording → Permissions → Microphone.
The second problem is the black screen when recording protected content, which is not a mistake, but intellectual property protection (DRM), Netflix, Disney+, banking apps and some browsers incognito block image capture, and it is impossible to get around it with regular means.
The third problem is lags and low FPS. If the phone overheats, the system automatically reduces the performance of the processor, which leads to jerks on the video. Close background tasks, reduce the brightness of the screen and remove the case for better cooling.
Why does the recording stop when the screen is off?
Can I record the sound of the call?
Where can I find bitrate settings?
💡
Properly configuring the sound source and resolution before recording will save you time and eliminate the need to remake the video.
Using the screen recording feature on the Xiaomi Redmi Note 9 opens up a lot of possibilities for creating content and saving information. Experiment with settings, use Do Not Disturb mode for cleanness of the process periodically and remember to check for system updates that can improve the multimedia features.