Xiaomi smartphone owners often use the automatic call recording feature to save important information, but after a conversation they can not always quickly find the right file in the device’s memory. The standard MIUI or HyperOS file manager sometimes hides system folders, and searching for file names can be ineffective due to the specific naming format. Understanding the exact directory structure is necessary not only for listening, but also for securely backing up important dialogs.
To make matters worse, in recent versions of Android, Google has restricted apps from accessing the microphone during a call, prompting Xiaomi engineers to change the mechanisms for saving audio streams. Now files can be written in different formats and arranged depending on the firmware version and regional settings. In this article, we will discuss in detail all possible ways where audio files are physically located, and how to access them with user rights.
In addition to local storage on the internal drive, many users forget about synchronization with cloud services, which can act as the main storage when the phone is overflowing. We will look at the features of Mi Cloud and Google Drive in the context of archiving calls, as well as the nuances of data transfer when changing the device.
The Standard Path in the Android File System
By default, all modern Xiaomi smartphones store conversation records in the device's internal memory using the standard Android directory structure. The main storage is the MIUI folder, which is created by the system when the phone is first turned on and contains all the user data of the applications from the manufacturer. It is here, in the back of the nested directory, that your audio files are ready to listen to or delete.
To get to them through the built-in conductor, you'll need to go to the root directory of the internal drive. The path is as follows: Internal memory. → MIUI → sound_recorder → call_rec. This directory houses all records sorted by date of creation, with the system often assigning files names containing the date and time of the call, making it easier to manually search.
⚠️ Note: When you clear the cache of the Dictophone or Calls application through your system settings, files from this folder can be deleted without recovery, as they are considered temporary application data.
It's worth noting that in some firmware versions, especially global ones, the path may be slightly different and lead directly through the memory root to the Record or Sounds folder. call_rec On the standard path, try searching for files with extension.m4a.aac, as these are the formats most often converted to.
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Use file extension (.m4a) search if you can’t find the folder manually – this is the fastest way to locate audio in a large dataset.
Storage features depending on the version of MIUI and HyperOS
With the release of new shells from Xiaomi, the file system structure periodically changes for security and optimization. In older versions of MIUI (up to version 12), records were often saved in.mp3 format, which is compatible with any media player. Starting with MIUI 13 and moving to HyperOS, priority has shifted to more modern codecs such as.m4a and.aac, which provide better quality with a smaller file size, but may not be readable on older devices.
An important change was the introduction of an isolated storage for applications, which means that a standard file manager may not display a folder. call_rec immediately after the system update, requiring the user to grant special permissions to access files. Without these permissions, the folder can only be seen when the phone is connected to the computer in file transfer mode (MTP).
- 📂 MIUI 11-12: Format MP3, Direct access through a conductor, the path is often duplicated in the cloud.
- 🔒 MIUI 13-14: Format M4A, You need to confirm access to the Android folder when you first open it.
- ☁️ HyperOS: Enhanced integration with Mi Cloud, the ability to hide the local folder with enabled memory optimization.
Users who are used to the old ways should be careful when updating: after installing a new firmware, old entries may remain in the same folder, and new ones will begin to be written at a new address.
Why has the recording format changed?
Using Mi Cloud Cloud Storage
For those who fear data loss when a smartphone breaks, Xiaomi offers integration with Mi Cloud. If the Mi Account settings enable voice recorder synchronization or call recording, copies of all files are automatically sent to the company's servers, which allows you to free up space on your phone and access the archive from any other device authorized under your Mi Account.
You can check for records in the cloud through your computer browser by going to i.mi.com. Once you log in, you will be able to access the "Dictorney" or "Sound Record" section, where all synchronized files are stored, and the advantage of this method is that even if you completely reset your phone to factory settings, your important conversations will remain safe and will be downloaded back after you re-authorize.
⚠️ Warning: Free Mi Cloud is limited (usually 5GB) and high-quality active recording can quickly exhaust this limit by stopping syncing photos and contacts.
It is important to understand the difference between synchronization and backup. In sync mode, deleting a file on your phone will cause it to be deleted in the cloud. If you need long-term archival storage, it is better to manually download important records periodically to your computer or external hard drive, without relying solely on a cloud service.
Search for records through the Dictator and Calls app
You don't have to go into the wilds of the file system to find the right conversation. The built-in Dictaphone app on Xiaomi smartphones has a special tab or category dedicated to recording calls. When you open the application, look at the top of the screen or side menu, where the switch between normal notes and conversation recordings is often located.
You can also access the latest records directly from the Phone app (Calls), and the call log next to the number you were talking to can show a small voice recorder icon or an underline indicating the presence of an audio file, and if you click on the call card, you will see a play button, which greatly speeds up the process of finding a particular dialogue.
The application interface allows you to sort files by date, size or name, and rename them for convenience, for example, you can give a file the name "Contract with the supplier" instead of the standard one «20231025_143000», This will help you navigate your archives faster in the future without having to listen to every file.
☑️ Checking the recording settings
File formats and their compatibility
As mentioned, Xiaomi uses a variety of codecs to compress audio stream. The most common format in modern models is.m4a (AAC codec). This format provides good sound quality at relatively low bitrate, which saves disk space. However, if you try to open such a file on a very old computer or media player without the appropriate codecs, you may encounter a playback error.
In some cases, especially when writing through third-party apps or on older versions of Android, files can be saved in.wav (no compression) or.mp3. WAV files take up much more space, but are versatile and open on any device. MP3 format is the middle ground, but is increasingly rare due to licensing restrictions and the features of the new Android recording system.
| Format | Sound quality | File size | Compatibility |
|---|---|---|---|
| .m4a (AAC) | High. | Low. | Modern OS, PC |
| .mp3 | Medium/High | Medium. | Universal. |
| .wav | Maximum. | Very big. | Complete. |
| .aac | High. | Low. | Android, Apple |
If you plan to transfer the recordings to third parties or use them as evidence, it is recommended to convert the files to MP3 format.
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The M4A format is the standard for modern Xiaomi, providing a balance between voice quality and memory.
Transfer and backup of records
Regularly backing up conversation records is a critical process, given that the phone’s internal memory is not reliable storage in the long run. USB-cassel, select the "File Transfer" mode and copy the folder call_rec This method ensures that you have a physical copy of the data.
Alternatively, you can use third-party cloud storage, such as Google Drive, Yandex.Disk or Dropbox. You can set up automatic downloads of the contents of the call record folder to these services, which is especially useful if you change devices often or fear the physical loss of your smartphone.
When transferring files, it is important to keep the folder structure or at least file names so you don’t get confused by dates. If you’re using Windows, you can set up a script to automatically copy new files from your phone’s folder to your PC’s archive folder every time you connect a charge.
⚠️ Note: When copying files through USB Do not remove the cable at the time of recording or immediately after the call is completed until the system completes the file indexing process, otherwise the file may be corrupted).
For advanced users, there is the possibility of configuring synchronization via Wi-Fi using applications like Syncthing or Resilio Sync, which allow you to automatically folder records to your home computer or computer. NAS-server without user participation.