Xiaomi, Redmi and Poco smartphone owners often encounter the cryptic term “multimedia” in notification settings or memory cleanups.It’s not a single file, but a complex system category that combines all of the device’s audio, video and graphics data. Understanding how this module works allows for efficient space management and troubleshooting annoying audio glitches.
Many users confuse the system sounds of the interface with the media files stored in the gallery. However, in the architecture of Android and the shells of MIUI or HyperOS, these are different processes. When you adjust the volume of media, you adjust the level of playback of the content, not the system clicks of the keyboard.
In this article, we will discuss in detail what lies behind this term, how to optimize the sound engine and avoid overflowing storage, you will learn which files rank in the Multimedia category and why it is important to know before resetting settings.
The main definition and role in the Android system
The term "multimedia" in the context of the Android operating system refers to the totality of all non-text data that requires processing by a graphics or sound processor. In Xiaomi smartphones, this is responsible for a system service that indexes files and allows applications to play them. Without the correct operation of this component, the gallery will not show photos, and the player will not turn on music.
It's important to distinguish between software process and physical storage. When notifications show up saying "Multimedia takes space," they're user files. When you're talking about audio settings, multimedia volume is a separate channel, independent of the bell or alarm clock, which allows you to listen to music quietly while the alarm goes off at full capacity, for example.
⚠️ Warning: Never delete system files with names like Media Storage or MediaProvider through root-righted file managers, which will cause the phone to stop seeing any new files and the gallery to display a black screen.
The HyperOS and earlier MIUI system architecture uses a database to caching album covers and video thumbnails. It's this cache that often inflates the "Multimedia" section of memory analysis. Periodic cleaning of the media scanner's cache is safe and even useful if you notice that new photos don't show up in the gallery immediately after you shoot.
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If new photos don’t show up in the gallery, try restarting your phone or clearing the Gallery and MediaScanner app cache in your app settings.
Managing sound profiles and volume
One of the key features of multimedia is sound management. In modern Xiaomi smartphones, an advanced channel separation system is implemented; the user can independently adjust the volume for games, music, video and system sounds, this is achieved through advanced settings of the audio assistant.
To access the detailed controls, you need to go to Settings → Sound and Vibration → Volume setting. Here you will see sliders for different types of content. If watching YouTube or Netflix videos is quiet and games are normal, the problem lies in the setting of the Multimedia channel, not in the dynamics.
- 🎧 Audio Assistant: allows you to create separate volume profiles for different applications, which is convenient for automation.
- 🔊 Improved Sound: The inclusion of Dolby Atmos or Hi-Res Audio technology changes the way media streams are handled.
- ⏸️ Shutdown pause: A feature that puts media on pause when you take your headphones off or turn off your Bluetooth headset.
It is worth noting that some third-party applications can intercept audio focus control. If the music stops on its own after another application is closed, check the power saving settings. MIUI aggressively optimizes background processes, which can lead to a media service stoppage.
Memory: What is in the Multimedia section
When you analyze storage, users often find that the Multimedia or Images and Video category is gigabytes long, and this group includes not only your snapshots, but also messenger cache, uploaded stickers, saved statuses and thumbnails, and understanding the folder structure helps to free up space without losing important data.
The bulk of the video is usually high-resolution. Shooting in 4K 60fps or 8K on Xiaomi flagships creates huge files, and a significant part is occupied by gallery baskets and cloud caches. If you use Google Photos or Xiaomi Cloud, check the local cache settings.
| File type | Location (path) | Can I remove it? |
|---|---|---|
| Miniatures (.thumbnail) | DCIM/.thumbnails | Yes (recreated) |
| Cash Telegram. | Android/data/org.telegram.messenger | Yes (via app settings) |
| Temporary Editor Files | MIUI/Gallery/cloud/cache | Yes. |
| System ringtones | miui/sound | No (interface sounds will disappear) |
Cleaning should be done carefully. Deleting the.thumbnails folder will temporarily speed up the gallery, but the next time the system opens, the system will again spend the CPU resources to generate previews.
☑️ Checking the multimedia vault
Problems with notifications and audible signals
A common problem with Xiaomi users is that notifications from certain apps are not sounding, or that there are intrusive system sounds, often because the app notification channel is tied to the Multimedia or System category incorrectly, and in Android 12 and later, notification channel management has become more granular.
To fix this, go to Settings → Apps → All apps, select the problem app and click Notifications. Here you can see a list of categories. If the sound is not playing, make sure that the slider is not silent and select a specific sound file, not a “No”.
Sometimes the failure occurs at the level of the system process "Media storage." If the sounds are completely lost in all applications, try to reset the preferences of applications. This will not delete your data, but return all the settings of sounds and resolutions to factory values.
⚠️ Note: If after updating the firmware lost sound in the headphones, but there is in the speaker, check the settings of Bluetooth codecs in the menu "For developers". LDAC on SBC Often solves the compatibility problem.
Customization of codecs and reproduction quality
For audiophiles and video enthusiasts, it’s important to understand which codecs your Xiaomi supports. Flagship models support advanced codecs like LDAC, aptX Adaptive and LHDC. Activating these formats allows you to transmit high-resolution audio over a wireless network, but requires support from headphones.
Video streaming also depends on the hardware capabilities of the decoder. Xiaomi 13/14 series and the latest generation Redmi Note support hardware decoding Dolby Vision and HDR10+. This means that the multimedia processor takes on the load without loading the CPU, which saves battery when watching movies.
- 🎼 Selected frequency: In the sound settings, you can choose the priority of quality or stability of the connection.
- 🎬 HDR-Content: when playing video in the gallery, the extended dynamic range mode is automatically turned on if the screen supports this technology.
- 📉 Adaptive bitrate: streaming services automatically change the quality of multimedia depending on the speed of the Internet, which can be limited in the settings of the application itself.
How to turn on hidden audio codecs?
Optimization and troubleshooting
If the multimedia system is not working properly — video is slowing down, the sound is jamming or the files are not being read — the first step is diagnostics. MIUI has a built-in hardware testing menu. The ##6484## command set in the call will open an engineering menu where you can check the speakers and vibrations.
Often the problem lies in the crowded cache of the media scanner. If you deleted gigabytes of files and the space didn't vacate, perhaps the index database "hangs," in which case the reboot in safe mode or the forced shutdown of the Media Storage service through application settings (the All Apps tab → show system processes).
For owners of older devices, the problem of lack of RAM for processing heavy multimedia files is urgent. In such cases, it is recommended to turn off automatic photo improvement in the gallery and reduce the quality of video recording in the camera to 1080p 30fps. This will reduce the load on the image processing processor (ISP).
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Timely cleaning of the messenger cache and disabling the synchronization of junk folders in the cloud is the most effective way to keep the media partition in order.
In conclusion, it is worth saying that the multimedia in the Xiaomi phone is a complex but flexible mechanism. Proper management of sound channels and file structure allows you to squeeze the maximum from the device, ensuring comfortable content consumption.