Xiaomi smartphone owners often face the need to keep an important conversation, whether it’s a business conversation or a solution to issues with a carrier. The Redmi Note 7 has built-in functionality for this, but after updating the system or changing the firmware, users can lose orientation in the file system. Standard ways to access audio files sometimes change, which causes confusion.
Finding saved dialogs can be difficult because the MIUI shell hides system folders from being accidentally deleted. Also, depending on the Android version and regional settings, the directory structure may differ. Understanding the logic of data storage will help you quickly locate the information you need without using third-party software.
In this article, we will take a detailed look at all possible paths to your audio recordings, explain the differences between file formats and teach you how to properly configure the recording function so that no important sound is lost, and also pay attention to the legal aspects and technical nuances of the recorder in the background.
Standard path to files through Explorer
The fastest way to find stored audio files is to use the Explorer app built-in. On the Android operating system that runs the Redmi Note 7, all user data has a clear hierarchical structure. By default, call records are stored in the device’s root memory, not on the device’s SIM-map or cloud server.
To get to the directory you want, open the File Manager app and go to the internal memory section. MIUI. Inside it is a directory. sound_recorder, And that's the storage for all the audio generated by the standard system.m4a or.mp3.
The complete path to files is as follows: /storage/emulated/0/MIUI/sound_recorder/call_rec/. If you can't see the folder call_rec, Check if hidden file display is enabled in Explorer settings. Sometimes the system hides system directories to protect against accidental modification.
Inside the folder, files are usually sorted by date of creation, making it easier to find the last conversation, but if you changed the default settings, the path can be changed, so you should check the settings of the Call Record or Phone application itself.
☑️ Checking for files
Search through the settings of the phone application
An alternative and often more convenient method of searching is using the interface of the Phone application. MIUI It allows you to manage entries directly from the call log without going into the file system, which is especially useful if you're looking for a record of a particular contact or number.
Open the Phone app and go to the recent tab, find the contact you recorded on the list, click on it or the arrow icon next to the number to open the details, and if you've recorded it, you'll see the Listen button or the recorder icon.
The menu that opens often has a "Show in folder" or "File Location" option, and clicking on that button will automatically take you to the system explorer exactly where the file is physically located, eliminating errors in manual long-path searches.
Also, in the Phone app settings (three dots in the corner → Settings → Call Recording), you can see a list of all records. You can also see a cleanup or file transfer feature here. Note that when you clean up your call history, the records may not be deleted, but the links to them in the log will disappear.
⚠️ Note: When resetting your phone to factory settings (Hard Reset), all files in internal memory, including the folder MIUI/sound_recorder, Make sure to back up important conversations before selling the device or flashing it.
Using Mi Cloud Cloud Storage
For users of the Xiaomi ecosystem, data synchronization is available through the Mi Cloud service. If the voice recorder or call recording option has been activated in your account settings, your files can be in the cloud, freeing up space on the Redmi Note 7 device.
You can check for files via your browser on your computer or other smartphone by going to i.mi.com. After logging in to your Mi Account, go to the "Dictator" or "Notes" section, which often stores audio files, even if they were deleted from your phone, but not from the cloud service basket.
Automatic upload to the cloud only occurs when you connect to a Wi-Fi network, unless otherwise specified in the settings. This is done to save mobile traffic, as audio files can take up a significant amount. Check the sync status in the Settings → Mi Account → Mi Cloud.
If the limit is exceeded, the new records will no longer sync, and you can only find them locally on the device.
What to do if the cloud is full?
Differences in formats and codecs of recording
The conversation records files on Xiaomi Redmi Note 7 can have different extensions, depending on the version of Android and the codec chosen. The most common formats are.m4a (AAC) and.mp3. Understanding the differences will help in choosing a player to play or edit.
The.m4a format is the standard for modern versions of MIUI. It provides good sound quality with a smaller file size thanks to efficient compression. However, some older recorders or car tape recorders may not support this format out of the box.
The.mp3 format is more versatile and plays on almost any device, but takes up more space. In the recording settings, you can try to change the format if this option is available in your firmware version (usually in the section "Write Quality").
| Parameter | M4A (AAC) format | MP3 format | WAV format |
|---|---|---|---|
| Sound quality | High. | Medium/High | Maximum (no compression) |
| File size | Small. | Medium. | Very big. |
| Compatibility | Modern devices | All devices. | PC and special. |
| Use of the | Standard for Xiaomi | Universal. | Professional processing |
If you plan to transfer recordings to other devices or store them for a long time, the.mp3 format may be preferable because of its compatibility.
Problems with the lack of records and their solution
Sometimes users are faced with a situation where the recording function seems to have worked, but the files are nowhere, this can be due to a recording error, a lack of memory or an application conflict.
If the memory is full, the system may interrupt the recording process or not save the file at all. It is also worth checking the permissions for the Phone application. In the Settings section → Apps → Phone → Permissions, the right to access the microphone and memory should be activated.
Another reason could be the use of third-party calling apps (e.g. Viber, WhatsApp, Telegram). Xiaomi's built-in voice recorder often can't record conversations inside these messengers due to Android's security limitations.
In rare cases, cleaning the cache of the Phone app helps, and it won't delete your contacts or your history, but it can fix a software glitch that prevents you from saving new files, and it's done through the app management menu.
⚠️ Note: With Android 10 and higher, and new versions MIUI, Google and Xiaomi have tightened their privacy policies, with recording conversations now accompanied by voice notifications ("Conversation is being recorded"), and it's almost impossible to disable this by standard means.
Set up automatic recording of conversations
To avoid being distracted by manually turning on the recorder during an important call, the Redmi Note 7 lets you set up automatic recording, which ensures that no conversation is missed, even if you didn’t have time to press the button.
To activate, open the Phone app, click three dots in the corner, and select Settings. Find Call Record. Here you activate the Auto Record switch. The system will tell you to choose the mode: record all numbers or only selected ones.
Selected Numbers is convenient for point control, such as recording conversations with a bank or support team. All Numbers will create an archive of all incoming and outgoing calls, which can quickly fill the phone's memory, so keep an eye out for free space.
You can also set up your write behavior in this menu, either to hide the recording notification (not working on all Android versions) or file formatting, and by setting these parameters correctly, you don’t have to constantly monitor the process.
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Use cloud sync for your record folder so that if your smartphone is lost or broken, important audio information is stored online. Set up autoload to Google Drive or Mi Cloud.
Legal aspects and ethics of recording
The use of the function of recording telephone conversations is regulated by the legislation of the country in which you are located. In the Russian Federation, according to Art. 138.1 of the Criminal Code of the Russian Federation and the Federal Law "On Communications", recording a conversation without warning the interlocutor can be regarded as a violation of the secrecy of communication if the recording is planned to be used as evidence in court or distributed.
For personal use (to keep the details of the conversation in mind), recording is generally permissible, but the publication of such recordings in the public domain or transfer to third parties without the consent of the other party is prohibited, and confidentiality is a key principle when dealing with personal data.
In a business environment, operators are often required to alert a customer about a recording (“Your conversation is recorded for quality control”). At the consumer level, Xiaomi implemented this through an audible alert that is difficult to get around without deep system interference.
Always assess the feasibility of recording and the risks associated with storing information: Deleting records after use reduces the risk of data leakage in the event of a hacked account or loss of your device.
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Automatic recording is a powerful tool, but requires control over free space and compliance with privacy laws.