Xiaomi’s mobile devices have long since ceased to be just a means of communication, becoming powerful multimedia centers. Built-in functionality of the MIUI shell or the new HyperOS allows users to create professional-level content on the go. One of the most popular features is recording what is happening on the display, but many owners are faced with the fact that the final video is silent.
This is often confusing, because visually, the process is ongoing, but the audio track is missing, and the problem is not the breakdown, but the specific privacy settings and signal source selection that can be disabled by default, and understanding the logic of the system recorder will help you avoid disappointment and get quality results immediately.
In this article, we will take a closer look at the nuances of audio stream configuration, the differences between voice recording and system sounds, and provide solutions for common errors, and learn how to manage microphone and internal sound settings to create perfect screencasts.
Basic settings before recording
Before you start directly capturing an image, you need to configure the control panel call settings correctly. The standard way to activate the function on most models, including the Redmi Note and Xiaomi Mi series, is through the notification curtain. However, just pressing the button is not enough, you need to pre-configure its behavior.
To access the advanced options, you should pin your Screen Record icon for a few seconds, rather than just tap it. This action will open the settings menu where the critical switches are hidden. This is where the key Sound Source parameter is located, which is often set to the "Off" position by default for resource savings or privacy.
In the window that opens, you'll see a few configuration options, and the system will tell you what exactly should be in the final file. It's important to understand that choosing the wrong source will result in the video being recorded without audio accompaniment, and you'll be set up once and saved for subsequent sessions.
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Clamping the icon in the notification curtain is a universal method of accessing the settings of most system applications in the MIUI shell.
Once the right source is selected, the system can request permission to access the microphone or notify you of the start of recording. Don't ignore these system requests, as they are part of the Android security mechanism. Proper pre-preparedness ensures that you don't have to remake the video.
Analysis of sound sources: Microphone or System
The main reason for the lack of sound is that you don't understand the difference between the two main modes of audio recording, and the recorder settings menu usually includes the options "Microphone" and "System Sounds" (or "Inner Sound"), depending on what content you plan to capture.
Microphone mode captures all the external sounds that enter the lens of the device, which will include your voice, keyboard noise, environmental sounds and even audio played by the phone's speaker, if it is loud enough, an option ideal for creating video comments, lessons with voice explanation or recording live communication.
Systemal Audio is designed to capture the digital audio stream inside the device, and is the best choice for recording games, watching videos on streaming services, or showing applications, but it is worth considering that in this mode your voice will not be recorded through the microphone unless a special mixer is used.
Why can’t you write both at once?
There is also a "Switch Off" mode, which is often chosen by mistake or in a hurry, in which case the file will be created, but completely silent. Switching between modes is instantaneous, but requires re-starting the recording process, so you need to determine the source in advance.
Step-by-step instruction for activating audio in MIUI and HyperOS
The algorithm for turning on the sound may vary slightly depending on the firmware version, but the overall logic remains the same. Below is a detailed sequence of steps that is relevant for most modern Xiaomi, Redmi and POCO smartphones.
First, unlock the device and make sure that the system does not run heavy applications that can block access to the audio codec. Then lower the top notification curtain twice to reveal the full list of fast buttons. Find an icon with a video camera image or a Screen Record icon.
☑️ Algorithm for sound inclusion
As mentioned earlier, you need to make a long press on the feature icon, open a small pop-up menu with settings. In the section "Sound Source" or "Audio Source", select the desired option: "Microphone" for voice or "System sounds" for audio from applications, then you can close the menu and start recording with a regular short tap.
While recording, a floating control panel can be displayed on the screen, and it often duplicates the on/off microphone button, allowing you to quickly change the settings without interrupting the process, which is especially useful if you need to insert a voice comment in the middle of the game moment.
Comparative table of audio recording modes
To better understand the differences between audio capture modes, a comparison table is recommended, which will help you quickly navigate which parameter to choose for a particular task to avoid the need to overwrite.
| Parameter | Microphone | Systemic sounds | Off. |
|---|---|---|---|
| Recording the user's voice | Yes (high quality) | No. | No. |
| Recording of sound from games/video | Yes (through speaker, there may be noise) | Yes (digital stream, clear) | No. |
| Background noise of the room | Recorded. | Not recorded. | Not recorded. |
| Recommended use | Teaching videos, vlogs | Gameplay, tutorials | Screencasts without audio |
Analysis of the table data shows that professional content often requires a choice between the purity of the system sound and the presence of voice comment, with users who need both sometimes resorting to third-party solutions or recording voice separately.
It is worth noting that the quality of recording through the microphone is directly dependent on environmental conditions: in a noisy room, recording system sounds through the microphone may not be usable, while digital capture will remain crystal clear.
Problem Solving: Why there is no sound in the finished video
Even with the right settings, users sometimes find themselves in a situation where the final file does not contain an audio track. The first and most common cause is application conflict. If a navigator, voice recorder or voice assistant is running in the background, the system can block the recorder's access to the audio input.
⚠️ Note: Some applications, such as bank clients or encrypted messengers, can programmatically block screen and sound recording for security reasons, in which case the video will be black or silent regardless of the settings.
The second reason could be low system volume, and if you've selected System Sounds, but you've turned the media down to zero before recording, you'll have silence, and make sure that the volume slider is in the active position.
Also worth checking permissions in your privacy settings. Go to Settings → Apps → Screen Record → Permissions and make sure that access to the microphone is allowed. Sometimes, after a MIUI update, these permissions are reset to standard values.
If the problem persists, try restarting the device, which will clear the temporary buffers of audio drivers that may have been suspended after previous use of audio functions by other programs.
Use of third-party applications for advanced functions
Xiaomi's built-in tools are functional, but sometimes limited. If you want to record system audio and microphone at the same time, or need more subtle bitrate settings, you should pay attention to third-party software from Google Play. Apps like XRecorder or AZ Screen Recorder offer flexible audio stream management.
These programs often mix sound to allow voice overplay over real-time game music, and can bypass some system constraints, although they require more careful permission settings, and are useful for those who create content regularly.
⚠️ Warning: When installing third-party recorders, carefully monitor the permissions requested. Avoid applications that require access to contacts or other data. SMS, unless it is due to the functionality.
When using third-party software, it is recommended to disable the built-in battery optimization for this application so that the system does not “kill” the recording process in the background, this will ensure stability and prevent audio track breaks in long stretches.
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Third-party applications are needed if simultaneous recording of internal sound and voice is required, which is often not available with standard MIUI.