The modern mobile industry has turned the smartphone into a universal tool for creating content. Gamers record levels, bloggers review applications, and technical support specialists record system errors for reporting. However, users often encounter a problem: video is recorded, but there is either no sound at all, or it is captured only from the microphone, ignoring internal audio streams. This creates significant inconvenience and requires the search for additional solutions.
In this article we will look in detail at how to record a screen with video audio on Android, using both the built-in functions of the system and third-party software. We will look at the nuances of working with the system audio microphone, and also discuss the access rights that applications require to work correctly. Understanding these mechanisms will allow you to create high-quality video content without unnecessary difficulties.
Differences in approaches to recording are due to versions of the operating system and skins manufacturers. If on recent versions Android 10 and higher this function is built-in natively, then on older devices or in specific firmware (for example, some builds Xiaomi or Samsung) third-party utilities may be required. It is important to correctly configure the audio source before starting to capture, so as not to rewrite the material again.
Built-in screen recording tools on modern versions of Android
Starting with version Android 10, Google has introduced a full-fledged screencasting tool directly into the quick settings panel. This is the most preferred method, as it does not require the installation of additional software and works at the system level, ensuring maximum stability. To access the function, simply swipe down from top to bottom twice to reveal the full list of tiles and find the icon Screen Recording.
After clicking the button, the system will ask for confirmation to record the screen contents. In the settings menu that appears (which may look different depending on the manufacturer's shell), you will be asked to select a sound source. This is where the key to success lies: choosing between Media sound, Microphone or a combination of them. Select Media sound will allow you to capture audio from games and applications, but will disable your voice.
Some manufacturers, such as Samsung in the shell One UI or Xiaomi in MIUI, add advanced features, such as the ability to draw on the screen while recording or display touches. However, the basic principle remains the same for all devices based on Android. If you do not find this button, it may be hidden in the tile editing menu, from where you need to drag it into the active area.
⚠️ Attention: On some devices with custom firmware, the system audio recording function may be blocked by the manufacturer due to DRM licensing restrictions. In such cases, even the built-in recorder will record only silence when playing protected content.
Using third-party applications for advanced functions
In cases where the built-in functionality is missing or its capabilities are insufficient (for example, recording at a high bitrate or with a webcam overlay is required), specialized applications come to the rescue. The leader in this niche for a long time remains AZ Screen Recorder, which offers flexible configuration of encoding parameters. Such applications often run on top of the system, creating a virtual display to capture the video stream.
When you first launch a third-party recorder, you will need to grant a number of permissions. Resolution is critically important, which allows the app interface to remain visible over running games or videos. Without this right, you will not be able to manage the recording without minimizing the main application. You will also need access to storage to save files. "On top of other applications", which allows the app interface to remain visible over running games or videos. Without this right, you will not be able to manage the recording without minimizing the main application. You will also need access to storage to save files.
Most advanced utilities, such as Mobizen or ADV Screen Recorder, allow you to adjust the video bitrate manually. To record dynamic games, it is recommended to set the value to at least 12 Mbit/sto avoid compression artifacts and blurring in fast scenes. For static training videos, you can reduce this parameter to 4-6 Mbit/s to save space.
- 🎥 AZ Screen Recorder: Better balance between functionality and lack of watermarks in the free version.
- 🎤 Mobizen: Excellent for recording from the front camera (picture-in-picture mode), but may require root access for clear system sound on older OSes.
- ⚙️ ADV Screen Recorder: Offers advanced codec settings and support for automation scripts.
It is worth noting that installing third-party software increases the load on the device's RAM. If your smartphone has less than 4 GB RAMit is recommended to close background applications before starting a long recording session. This will prevent possible freezes and desynchronization of the audio track.
Setting up sound sources: System audio vs Microphone
The most common question from users concerns how to record the sound from a game or video, and not the noise from the room. In the settings of any recorder you will find the item Audio Source (Sound source). Here you need to select the option Internal Audio (Internal sound). This mode has become a de facto standard since Android 10, when Google opened an API for intercepting digital audio streams.
If you select the mode Microphone, the application will record everything that the smartphone sensor hears: your voice, keyboard noise, the operation of coolers and sounds from the speakers, but with significant distortion. This is suitable for commentary, but unsuitable for pure gameplay capture. Some applications allow you to use the Dual Audiomode, mixing both sources into one track.
It is important to understand the technical limitations: when recording internal audio, the sound of notifications and calls will also be included in the video. To avoid embarrassment, activate the mode Do Not Disturb before starting recording. This will silence system alerts, but will not affect the audio stream of the application you are recording.
If you are recording a video with a voice narration, use a headset with a microphone. This will allow you to record clear system audio through headphones and your voice through an external microphone at the same time, avoiding echo.
Optimizing video parameters for quality and file size
The quality of the final video directly depends on the selected encoding parameters. The recording resolution must match the screen resolution of your device or be lower. Recording in 4K on the screen with a matrix 1080p is pointless and will only increase the file size without visual improvement. The optimal choice is the native screen resolution, for example 2400×1080 for modern smartphones.
Frame rate (FPS) is the second critical parameter. For smooth pictures in dynamic shooters or racing games, you need to set the value 60 FPS. However, this doubles the processor load compared to standard 30 FPS. If the device starts to overheat or slow down, lowering the frame rate to 30 is the first step to stabilize the system.
The file format also matters. Most recorders by default use a container MP4 with a codec H.264. It is a universal standard that can be played on any device. A more modern codec H.265 (HEVC) provides better compression at the same quality, but may not be supported by older video players or editors on PC.
| Option | Recommendation for games | Recommendation for lessons | Impact on the system |
|---|---|---|---|
| Resolution | Native (Full HD/2K) | 720p or 1080p | High resolution = more load on the GPU |
| Bitrate | 12-20 Mbit/s | 4-8 Mbit/s | High bitrate = rapid growth of file size |
| FPS | 60 frames/sec | 30 fps | 60 FPS doubles the load on the encoding processor |
| Codec | H.264 (compatible) | H.265 (space saving) | H.265 requires a more powerful processor for decoding |
Why does video slow down during playback?
If the recorded video is slow on your computer, most likely you chose the H.265 codec or the bitrate is too high, which your video player cannot process in real time. Try installing another player (for example, VLC) or re-encoding the file.
Solving problems with sound and synchronization
One of the common problems is desynchronization of audio and video, when the sound lags behind the picture or is ahead of it. This often happens when using cheap third-party applications that do not handle data buffers correctly. If you encounter this, try changing the application or reducing the CPU load by closing background tasks. Another difficulty is the lack of sound in specific applications, such as banking clients. This is not a recording error, but content protection
Another difficulty is the lack of sound in specific applications, such as Netflix, Disney+ or bank clients. This is not a recording error, but content protection DRM (Digital Rights Management). Android intentionally blocks audio capture and dims the screen when attempting to record protected video. It is almost impossible to bypass this programmatically on a non-rooted device.
To diagnose audio problems, check the mixer settings in the recorder application itself. Make sure the volume sliders are not set to zero and the correct output channel is selected. Sometimes a simple reboot of the smartphone helps, which resets frozen audio drivers.
⚠️ Attention: Sound settings interfaces may differ depending on the Android version and smartphone model. Always check the current settings in the “Sound and Vibration” section of your device, as manufacturers often change the location of menu items.
☑️ Checklist before recording an important video
Recording the screen via a computer for professional tasks
If the resources of the smartphone are limited or you need to record the screen in maximum quality without loading the mobile processor, you can use a connection with a PC. The app Scrcpy is a powerful open source tool that allows you to cast the screen and control the device from a computer via USB or Wi-Fi. This is an ideal option for creating professional reviews.
To work with Scrcpy you need to enable USB debugging in the developer menu on your smartphone. Once connected to a PC, the command to start recording looks quite simple, but requires basic knowledge of the command line. The advantage of the method is that video encoding occurs using the computer processor, not the phone.
scrcpy --record-file=video.mp4 --bit-rate 8MThis method also allows you to easily capture audio if you use additional modules or built-in functions of the latest versions Scrcpy (starting from 2.0), which support audio transfer from the device to the computer. This bypasses mobile app restrictions and DRM protection in some scenarios, since the signal is transmitted as a video stream.
Using a wired connection (USB) when recording via a computer guarantees minimal latency and no interference, unlike a wireless connection via Wi-Fi, which is sensitive to the quality of the router.
Why is there no record button on my phone screen?
The lack of a button may be due to Android versions below 10, where this feature was not built in by Google. Also, manufacturers of some budget models may hide this function deep in the menu or replace it with service software. Try adding a tile by editing the quick settings panel or install the AZ Screen Recorder application.
Is it possible to record a call with the audio of the interlocutor via screen recording?
No, Android security policy (especially in versions 9 and above) strictly prohibits the recording of telephone conversations by third-party applications and screencast functions. The interlocutor's audio is blocked at the system level to protect privacy. Screen recording during a call will only record your voice through the microphone (if enabled) and an image of the interface.
Screen recording quickly drains the battery, is this normal?
Yes, this is absolutely normal. The process of capturing video, encoding it in real time and recording it to flash memory is processor and GPU intensive. This is one of the most energy-consuming scenarios for using a smartphone. For long-term recordings, it is recommended to keep the device connected to the charger.
Where are the screen recording files saved?
By default, files are saved in the folder /DCIM/Captures or /Movies/ScreenRecords in the internal memory of the device. The exact path depends on the specific recorder application. You can find them through any file manager or in the Gallery application in a separate “Screencasts” or “Screen Recordings” album.