Modern Xiaomi, Redmi and POCO smartphones have powerful built-in functionality that often eliminates the need for users to install third-party software. One of the most popular features is the ability to capture what is happening on the display, whether it is passing a difficult level in the game, playing video or bugs in the application. However, for recording to be really useful, it is critical that the audio signal is stored along with the video sequence.
Many device owners have a problem when the video is silent after creating the video, or when the sound comes only from the microphone, ignoring the system audio. This is due to the peculiarities of the MIUI shell or the new HyperOS, as well as the limitations of the security policy of Android. In this material, we will analyze all the nuances of the configuration so that you can create quality content without undue effort.
It’s worth noting that the standard screencast tool in Xiaomi is considered one of the best on the market for functionality, allowing you to flexibly manage sound sources, video quality and even add annotations in real time. Understanding the principles of this utility will greatly expand your ability to manage your smartphone.
Built-in Screencast Tool: Basic Setup
The first step to creating quality video is to properly configure the regular app. Unlike many competitors, Xiaomi engineers have implemented all the necessary switches directly into the notification curtain. You don't have to search for hidden menus or run complex processes through USB debugging.
To get started, lower the top menu curtain and find the Screen Recorder icon. If you don't have it in quick access, click on a pencil or three dots to edit the panel and drag the icon to the active zone. Once you start the application, before you start recording, you need to pay attention to the settings that are usually hidden under the gear or menu button in the upper right corner of the interface.
Here lies the most important thing: the choice of sound source. By default, the system can offer a "no sound" or "Microphone" mode. To capture the audio played by the phone itself (music, speech in the messenger, game sounds), you need to select the Sound of the system, which is the parameter that ensures a clean digital copy of the audio stream without the noise of the environment.
- 🎙️ System sound: Records only internal audio files, ideal for games and video.
- 📢 Microphone: Captures external sounds, your voice and room noise while ignoring system audio.
- 🔇 No Sound: Creates silent video, useful for saving traffic and space.
- ⚙️ Quality: allows you to select permission from 480p before 1080p and frame rate 30 or 60 FPS.
Once you have selected the right settings, you can press the red start button, the system will request confirmation to record the contents of the screen — this is a standard security measure of Android. Click Start Now, and the countdown will go.
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To record sound from WhatsApp or Telegram calls, be sure to choose the source "Microphone", as the security policy of Android prohibits the interception of system sound during VoIP calls.
Solving the problem of lack of sound in MIUI and HyperOS
Even with the right settings, users sometimes find themselves in a situation where video is created but no audio track is available, often due to software conflicts or specific privacy settings, and in recent versions of Xiaomi’s shells, audio algorithms have become stricter.
One common reason is to run in Do Not Disturb mode or power saving profiles enabled. The system may block the recorder application from accessing the audio stream, considering it to be background activity that should be limited to save battery life.
⚠️ Note: If you use Do Not Disturb mode, notifications and some system sounds may be suppressed, leading to silent video.Be sure this mode is disabled or configured correctly before recording.
Also, check the permissions for the Screen Recording app itself. Go to Settings → Apps → All apps, search Screen Recorder (or Screen Recorder) in the list, and go to the permissions section. Make sure that access to microphone (if needed) and storage is allowed. While the system sound doesn't formally require microphone resolution, some versions of the software can block recording if it's not available.
Another important aspect is the use of Bluetooth headsets. When you connect wireless headphones, the path of the audio stream changes. In some cases, Android does not allow you to redirect the system sound to the recording file if you have a Hands-Free or A2DP profile active, considering this a copyright infringement (DRM), in which case you try to turn off Bluetooth and use the smartphone speaker.
Configure video quality and coding parameters
The quality of the final file depends on the selected encoding parameters. Xiaomi's built-in recorder offers flexible resolution and bitrate settings. For most scenarios, such as creating instructions or fixing game moments, the best choice will be 1080p resolution.
Frame rate (FPS) is also key. If you're recording dynamic content, such as shooters or races, be sure to set a 60 FPS value. This will ensure smooth image. For static tutorials or demonstration of the interface, 30 FPS is enough, which will save space on the drive.
The table below compares settings for different use purposes:
| Purpose of the record | Permission | Frequency of personnel | Sound source |
|---|---|---|---|
| Gameplay/Action | 1080p | 60 FPS | System sound |
| Instructions/Tutorial | 720p / 1080p | 30 FPS | Microphone |
| Saving videos from social networks | 1080p | 30 FPS | System sound |
| Demonstration of bugs | Automobile | 30 FPS | Microphone + System |
Don't chase the maximum bitrate unnecessarily. High settings require more CPU resources, which can lead to micro-twitches in video itself, especially on mid-budget models. Balance between quality and performance is key to success.
☑️ Pre-recording checks
Recording sound through the microphone: when necessary
While System Sound seems perfect, there are times when you can't do without recording through an external microphone, and that's when you have to comment on the screen with your voice in real time, creating a full-fledged review or a training video.
When you select a Microphone source, your smartphone records everything its sensor hears, and that includes not only your voice, but also the sounds coming from the phone's speakers, but the quality of the mix is often poor, with echoes, wind noises, or extraneous conversations.
To improve the result, it is recommended to use a headset. Even simple wired headphones with a microphone will give a significantly cleaner sound than the built-in smartphone sensor. If you plan to create content often, you should consider buying an external loop microphone that connects through a Type-C or Bluetooth connector.
It’s important to understand the technical limitation: when the microphone is turned on, many apps (e.g. YouTube, Netflix, Spotify) can automatically jam the system sound or give out a black screen because of content protection.
How to record sound from a DRM-protected application?
Third-party alternatives and enhanced functionality
If built-in capabilities are lacking, the Google Play store offers a variety of alternatives.Third-party apps like AZ Screen Recorder or XRecorder often have more advanced editing tools, the ability to draw on-screen while recording and streaming live.
However, using third-party software on Xiaomi has its own peculiarities: MIUI shell and HyperOS aggressively unload background processes. To make the third-party recorder work steadily, it needs to be added to the autoboot and remove battery restrictions. To do this, go to Settings → Battery → Find problems (or a similar path in your version) and allow the application to work in the background.
The main advantage of third-party solutions is that they have an integrated editor, so you can cut the video, overlay the music or the text immediately after you finish recording, without opening a separate gallery, and some of them allow you to record sound from both the system and the microphone, creating a mix track, which is not yet possible with the standard Xiaomi application.
⚠️ Attention: Installing unknown recorders can lead to data leakage. Carefully study the permissions that the application requests. If a simple recorder requests access to contacts and geolocations, this is an alarm signal.
When choosing an alternative, pay attention to the presence of watermarks. Free versions often impose the program logo on the video. Xiaomi's built-in solution does not have this drawback, making it the preferred choice for most users.
Where records are stored and how to share them
Once the process is complete, the file is automatically saved to the gallery. Depending on the Android version and shell, the path may differ. Usually it's a DCIM → ScreenRecorder or Pictures → ScreenRecorder. You can also find the created video through the Explorer app in the Video category.
Right after you stop recording, you have a thumbnail in the corner of the screen, and you click on it, you get to a simple editor, and you can cut the beginning and the end, you can delete the extra seconds, or you can add text, which is very convenient, so you don't have to carry raw material into heavy video editors.
For quick submission, use the Share function. The system will suggest sending a file via Bluetooth, Mi Drop (now ShareMe), messengers or upload to the cloud. Consider the file size: a minute of writing in 1080p can take from 50 to 100 MB, so sending such volumes over the mobile network is long and expensive.
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Always check the file immediately after recording. If the sound is gone, it's better to reshoot the material immediately while the context is fresh than to try to restore it with editing.