Searching for specific audio recordings on Xiaomi smartphones, especially the Redmi 7 model, often turns into a real quest for the owner.This is because the MIUI operating system has a specific directory structure that can vary depending on the firmware version and the caller application used. Users often get lost not understanding why the files are not visible in the shared music list or why the recorder does not display recent records.
In this article, we will take a closer look at your device’s file system, learn the exact paths to your system folders, learn how to distinguish between audio storage formats, and understand how to manage that data so that it doesn’t take up too much space. It’s important to understand that standard paths may differ if you’ve installed third-party applications to record calls.
We will look not only at standard directories, but also at the hidden nuances of working with Android files in the shell of MIUI. This guide will help you organize the archive of conversations and avoid situations where important information is lost due to banal ignorance of the folder structure.
Standard path in system storage
By default, all records made by standard Xiaomi system tools fall into the root directory of internal memory. 7 This path usually looks like /MIUI/sound_recorder/. However, if it is about recording telephone conversations rather than dictaphone notes, the system often uses a different directory, which may not be obvious at first glance.
Most often, files are saved to a folder with a name. call_rec, which is inside the directory MIUI. The full path looks like this: Internal memory → MIUI → call_rec → CallRec. This is where the audio files are recorded during incoming or outgoing calls through a standard call.
- 📂 Open the Explorer or Files app on the home screen.
- 📂 Go to the section "Internal Storage).
- 📂 Find a folder with a name MIUI and enter it.
- 📂 Open the folder. call_rec, And then CallRec.
If you can't see the folder call_rec, This may mean that on your device, records are saved to a folder. sound_rec Or to a shared folder of Recordings. MIUI route /MIUI/sound_rec/call_rec/. Note that folder structure is sensitive to the region selected when you initially set up your smartphone.
⚠️ Note: If you recently upgraded to Android 11 or higher, access to root folders may be restricted by security policies.
Using the built-in Explorer to search
The easiest way to find the right files is to use a built-in file management tool. The Explorer app on Xiaomi has a convenient categorization that allows you to quickly sort content by type. You don't need to remember difficult paths if you know how to use filters.
Run an app and select Audio or Records, and the system automatically scans the device and lists all the audio files, but there's a caveat: You can get music tracks and voice messages from messengers into the general list, and you can find the conversation records, you can use date sorting or file name search to find them.
For a more accurate search, use the inside search function, enter a file extension like.m4a or.mp3, or part of the name if you know the date of the recording, which will greatly speed up the navigation process through the Redmi 7 file system.
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Use Size-by-Size sorting in the conductor to quickly find long conversation records, as they take up more space than short system sounds.
Differences in audio file formats
Conversation records files on Xiaomi can have different extensions depending on the recording quality settings and the MIUI version. The most common format is.m4a (AAC), which provides good quality at a relatively small file size.
On older firmware versions or under certain settings, recordings can be saved in.mp3 or even.amr. AMR format is used to save space, but the sound quality is much lower, and it can be difficult to play such files on a computer without converting.
| File format | Sound quality | File size | Compatibility |
|---|---|---|---|
| M4A (AAC) | High. | Medium. | PCs, Smartphones, Tablets |
| MP3 | Medium/High | Big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big big | Universal. |
| AMR | Low. | Minimum | Android/Spoke only. |
| WAV | Maximum. | Very big. | PC, Audio editors |
If you plan to keep records for a long time, it is recommended that you convert AMR formats to more common ones, this can be done through online converters or special applications on the smartphone itself, and data security depends on the popularity of the format.
Searching through the computer (USB-regime)
The most convenient way to manage large volumes of recordings is to connect your smartphone to your computer. Connect Redmi 7 to your PC via a computer. USB-cable and select the notification menu on the phone screen mode "File transfer» (MTP). This will open access to the file system as a normal removable disk.
In the “My Computer” window, find a Xiaomi device and go to internal memory: MIUI → call_rec → On a large screen, it is much easier to navigate the list of files, sort them and rename them.
☑️ Checking the connection to the PC
Using a computer, you can copy important conversations to your hard drive for archiving, which will free up space on your smartphone, which on the Redmi 7 model may be limited, and a regular backup will protect you from data loss in the event of a phone breakdown.
⚠️ Note: When copying files to your computer, do not interrupt the abruptly connection. wait until the copying process is completed so that the file does not become corrupted and unreadable.
Problems with file visibility and their solution
Sometimes users are faced with a situation where the record seems to have been made, but the file is nowhere. The first reason may be crowded memory. If there is no free space on Redmi 7, the system simply cannot save the new audio file. Clearing the cache and removing unnecessary applications solves this problem.
The second reason is the permission restrictions. Starting with Android 10, Google has increased privacy requirements. The Phone or Recorder app may not be allowed to write to a specific folder. Check permission settings under Settings → Apps → App Management → Phone → Permissions.
Hidden folder.thumbnails
Also, check the settings for the call record itself, make sure the record function is enabled and you select the option "Record all calls" or "Record selected numbers." If you choose "Do not record", then the files will not be created.
Transferring records to the cloud and memory card
To save internal space, Redmi 7 recommends periodically migrating conversation archives to a microSD card or cloud storage. Built-in Mi Cloud or services like Google Drive allow you to automatically sync your folder with your records.
To move files to the memory card manually, use the built-in Explorer. Select the files you want in the CallRec folder, click Copy or Move, and specify the path to the memory card (usually /storage/sdcard1/or). This action will break the file's connection to the call application, but save it for listening.
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Regularly transferring records to an external medium is the best way to prevent overflowing of the smartphone memory and loss of important information.
Cloud services have the advantage of being accessible from any device, and you can listen to an important conversation directly from your computer without having to connect your phone, but be aware of the limits of free cloud space and the need for an Internet connection to download.
Recovering Deleted Records of Conversations
If you accidentally delete an important file, don't panic. On modern smartphones with EXT4 file system, data does not disappear instantly, but is marked as "free space." Until this space is overwritten by new data, recovery is possible.
The most effective way is to use software to recover data on a PC, such as Recuva or DiskDigger (requires root access for deep scanning), connect the phone in USB debugging mode and start scanning internal memory, the chances of success depend on the time elapsed since the deletion.
Also check the Recycle Bin in the Files or Gallery app (if the record was saved with a preview). On newer versions of MIUI, deleted files can be stored there for up to 30 days, a built-in protection against accidental data loss that users often forget.