Setting up a voice recorder to record calls to Xiaomi

Xiaomi’s current smartphones, which run MIUI shells and the new HyperOS, have built-in functionality for recording phone conversations, an option critical for lawyers, sales managers, and anyone who needs to save evidence or details of a conversation. However, standard settings often require manual activation, as the default feature can be disabled for privacy purposes.

The configuration process does not require the installation of third-party applications, which guarantees the stability of the system. You just need to set the parameters correctly in the call menu. In this manual, we will discuss in detail all the steps necessary to activate automatic or manual recording, and also consider the nuances of working with the volume of the interlocutor.

To get started, make sure your device has enough free space, files can take up a significant amount of memory, especially if you plan to archive long conversations in high quality, and then we will move on to direct function management through the system application Phone.

Activation of the recording function in the standard application

The first step is to log in to the regular call settings. The interface may vary slightly depending on the firmware version, but the logic remains the same for all Redmi and Poco models. Open the Phone app and find the menu icon, which is usually represented by three dots or a gear in the corner of the screen.

In the list that opens, you need to select Settings, and here you are interested in the Call Record section, and this is where all the key switches that control the voice recorder's behavior during a conversation are concentrated, and without activating this module, you can't set up any further.

Once you go to the menu, you'll see the main call recorder, which needs to be put into an active position, and the system can request confirmation of actions, warning that the person may be notified of the recording by voice message, depending on the legislation of your region.

  • 📱 Open the Phone app and click on the three dots in the upper right corner.
  • ⚙️ Select “Settings” from the drop-down list and find the “Call Record” section».
  • ✅ Activate the “Record Calls” switch to start the function.
📊 How do you prefer to record calls?
Automatically all calls: Manual during conversation: Only selected contacts: I do not record

It is important to note that in some regions the function may be hidden or limited. If you do not see the described items, check the region in the phone settings or update the Phone app through the GetApps store. Correct activation is the foundation for further fine-tuning the sound parameters.

Automatic and manual recording modes

Once the basic function is enabled, the user has to choose the mode of operation, automatic recording allows you to record all incoming and outgoing calls without your participation, which is convenient for full control, but quickly fills the device's memory with unnecessary files if you often talk about nothing.

The alternative is manual mode, where you only start recording when you press a button on the screen during a conversation, which is more selective and allows you to control which dialog you're going to save, and you can switch between modes depending on what you're doing.

And you can have a flexible filtering system that allows you to automatically ignore contacts from the phone book, or just record them, and it creates an effective filter that cuts off commercial calls or private conversations that don't require archiving.

☑️ Set up automation

Done: 0 / 1

⚠️ Note: When automatically recording all numbers, make sure you have cloud sync enabled or you clean your memory regularly, otherwise the phone may stop accepting new calls due to storage overflow.

Choosing the right mode has a direct impact on the usability of your smartphone in your daily life, and if you work in the service industry, automation will be an indispensable assistant, and for personal use, it is more often recommended to manually start or write only unknown numbers.

Loudness and sound quality setting

One of the most common problems users have is the quiet voice of the interlocutor in the recorded file. In the settings of recording calls on Xiaomi, the option “Use speaker” is often present. When activated, the phone will automatically turn on the speaker when recording begins, which greatly improves the audibility of the second side.

However, hands-free is not always convenient, especially in public places, where recording quality depends on the main microphone and noise cancellation. Some Xiaomi models allow you to choose the source of sound or adjust the sensitivity of the microphone, although this option is not available on all versions of Android.

The file-saving format also plays a role. Commonly used MP3 or AAC. These formats provide a good balance between sound quality and file size. Selecting a higher bitrate will increase the size, but may be necessary for legally relevant conversations where every detail matters.

  • 🔊 Activation of the option “Loud communication” improves the intelligibility of the interlocutor’s speech.
  • 🎙️ Check the main microphone by covering the bottom hole with your hand during the test recording.
  • 💾 Format MP3 It is optimal for long-term storage of archives of conversations.

💡

If the voice of the interlocutor is barely audible, try to slightly move the top of the phone from the ear during a conversation, without turning off the screen to improve the sound capture by the main microphone.

Experiment with the position of the phone during test calls. Sometimes even a small angle of the device affects how the sound wave enters the microphone holes.

Managing exclusions and selected contacts

The flexibility of MIUI allows you to create precise rules for recording, so you can set up a script that only records numbers that are not in your phone book, and it's ideal for recording conversations with couriers, support services, or potential scammers.

On the other hand, there is a record mode only for contacts from the Favorites list or a specific group, which is relevant for business users who want to keep a history of negotiations only with key partners or customers, ignoring personal calls.

To manage these lists, you need to go to the recording settings subsection, where the current status is usually displayed (“All numbers”, “Not from contacts”, etc.). By clicking on this item, you will see a list of available options for choosing a voice recorder behavior strategy.

Recording modeDescription of actionRecommended use
All rooms.Records every incoming and outgoing callLawyers, full archiving of activities
Numbers are not from contacts.Ignoring saved numbers, writes unknownProtection from fraudsters, fixation of deliveries
Selected numbersRecording is made only on a specific list.Business negotiations with key clients
Manually.Automation is disabled, start on the buttonPersonal use, rare recordings

Using exceptions helps save time sorting files later, so you don't have to listen to hours of unnecessary conversations to find one important point, and having filters configured correctly is a sign of an advanced user.

Search, listen and synchronize files

There are two main ways to find the stored records, the first is through the phone call history, and next to the number you've been recording, you'll see a special voice recorder icon, and you'll click on it and you'll immediately go to the file you've been listening to for that particular call.

The second way is through the Dictator or Explorer app, and in the system directory, files are usually lying in the path. MIUI/sound_recorder/call_rec. It's convenient to do mass operations like renaming, deleting, or copying files to a computer. File naming structures often contain a date and time, making it easier to search.

Where do files are stored on your computer when connected via USB?
When you connect your phone to your PC in file transfer mode, the call records are stored in internal memory at the address: /MIUI/sound_recorder/call_rec/. Files have extensions.mp3 or.aac and named in the format of the date and time of the call.> To ensure the safety of data, you should configure sync with Google Drive or Xiaomi Cloud. The voice recorder settings often include “Cloud Sync” to protect your archive in the event of a device loss or failure. However, it is worth remembering the limits of free cloud storage. 📂 The Path to Files: Internal Memory → MIUI → sound_recorder → call_rec. 🔍 In the history of calls, the icon of the recorder indicates the presence of a record. ☁️ Turn on sync in the Dictophone backup app settings. Regularly checking the record folder helps monitor memory occupancy. Old files can be deleted in batches, highlighting them by the date of creation. This keeps the system clean and keeps the smartphone running. Resolving common problems and limitations Users may encounter a situation where the recording is happening, but the interlocutor’s sound is not familiar. This is often due to the peculiarities of noise reduction in Android versions 11, 12 and higher. Google has implemented restrictions on access to audio stream to improve privacy, which affects smartphone manufacturers. In such cases, it helps to turn on the speakerphone, as mentioned earlier, or use of a headset. Connected headphones often have their own microphone, which the system handles differently than the main audio recording software, which allows for the main audio limitations. ⚠️ Warning: Third-party apps from the Play Market may not work properly on newer versions of Android due to security limitations. Use only the built-in functionality of Xiaomi for guaranteed results. If the recording is interrupted by itself, check the power saving settings. The system could define the recorder as a resource-intensive application and limit its performance to save charge. Add the Phone and Dictator app to the battery optimization exceptions list, and make sure that the phone doesn't have conflicting applications installed to record calls. Having two programs that claim to control the microphone during a call can cause both to malfunction. Keep only one active tool. Legal aspects and ethics of recording The use of the telephone recording function is regulated by the laws of your country. In many jurisdictions, it is necessary to warn the interlocutor that the conversation is being recorded, ignoring this rule can lead to legal consequences, and the recorded material will not be accepted by the court as evidence. MIUI And HyperOS has a voice alert, and when you start recording, the voice automatically says, "Talk recording has started." This warning cannot normally be disabled by standard means, as it is a security requirement built into the software level for certain regions. Do not share private conversations with third parties without the consent of the participants, this applies to both correspondence and business negotiations containing trade secrets. ⚖️ Please review local legislation regarding recording conversations before using the feature extensively. 🔊 Voice recording warning is system-based and often non-disabled. 🔒 Keep files with sensitive information in secure folders or password archives. Responsible use of technology protects you from legal risks. Remember that the technical ability to record a conversation does not always mean the legal ability to use that record anywhere. Balancing convenience and law is a key skill for the modern user. Why is it that recording on some numbers doesn't work? Recording may not be maintained if the number is included in the exceptions, the mode is "Do not record" for contacts from the phone book, or if the call is made through Internet Protocols (VoIP), which the system does not recognize as a regular phone call. Xiaomi standard voice recorder is only for conventional cellular communication. To record calls through messengers, you need special recorder applications with system audio access rights, or you need to use a second device for external recording. How do you transfer recordings to a new phone? Copy the folder call_rec From the internal memory of the old phone to the computer or the cloud, then move it to the same directory on the new device. The files will store metadata, but the link to contacts in the history of the call can be reset. Is the person notified of the recording visually? In most cases, there is no visual notification on the interlocutor’s screen, however, as mentioned, both sides hear the voice warning. In some countries, operators can add their signal, but this depends on the network settings, not the phone.