Modern smartphones like the Poco X3 have become powerful communication tools where every detail of communication can matter. Device owners often face the need to preserve important information voiced during a dialogue, whether it is a business arrangement or a personal conversation. However, after a call is completed, many users are lost in understanding where the system saved the audio file and how it can be played.
The MIUI operating system that powers Poco X3 has its own distinct features from standard Android smartphones: a system voice recorder integrated directly into the Phone app, which provides convenience but sometimes creates confusion in the way files are accessed. Understanding the logic of the module allows you to instantly find the information you need without installing third-party software.
In this article, we will take a look at all the ways to access the call archive, review the recording quality settings, and solve typical problems when the file seems to be there, but there is no sound in it, learn how to organize data storage and use the built-in functions for maximum efficiency of your device.
Where are the conversation records stored in the MIUI system
By default, all audio recordings created during calls are stored in the device's internal memory. The MIUI system uses a folder that is hidden from the eyes of the average user, but it can be accessed through a standard file manager or directly through the call interface. Files are saved in.mp3 or.m4a format depending on the firmware version and codec settings.
The fastest way to find a file is to use a call log, and if you click on a particular number in the story that has a voice recorder icon next to it, you'll see a play button, which allows you to instantly listen to a conversation without wandering through folders, and if you need to copy a file or send it, you'll have to use a conductor.
To manually search through the file system, you need to go to the root directory of internal memory. MIUI/sound_recorder/call_rec. And that's where all your conversations are, sorted by date and time of creation, and knowing this path is critical when you connect your smartphone to your computer for backup.
⚠️ Warning: When cleaning your smartphone memory through standard Cleanup tools, be careful.Sometimes users accidentally delete the folder call_rec, Thinking it's cache and losing important audio recordings without the ability to recover.
The file storage structure on the Poco X3 may differ from older Redmi models due to changes in Android security policy. Starting with Android 11 and up, access to some system folders is limited, so using an integrated file manager becomes preferable to connecting via USB in drive mode.
Listening through the application “Phone” and “Dictophon”
The main tool for managing calls in Poco X3 is the standard Google Phone or MIUI Dialer app (depending on the firmware region), which offers the most convenient way to navigate recorded dialogs. You don’t have to search for files manually if you remember the number or date of the call.
To listen to the entry through the call log, follow the following steps:
- 📞 Open the Phone app and go to the Recent tab».
- 🔍 Find the contact or number the conversation was recorded (near the icon of the recorder will be).
- ▶️ Click on the play icon right in the call card or open the call details and select the desired entry from the list.
An alternative method is to use the system app Dictophone, which is primarily for voice notes, but it also aggregates conversation recordings, and there's a separate tab or Calls category in the voice recorder interface, where all files are sorted chronologically, which is convenient for mass listening to the archive.
The player interface in the Phone app allows you not only to listen, but also to control playback. You can pause, rewind 10 seconds back or forward, and change the playback speed, which is useful for quick familiarization with long conversations. The accelerated playback feature is often overlooked, but it saves time.
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Use the accelerated playback function (1.5x or 2x) to quickly listen to long conversations with tech support or delivery services, looking for key points.
If you use third-party applications to make calls, such as through VoIP services, the built-in Poco X3 voice recorder may not work, in which cases the recording is often done by the application itself (such as Telegram or WhatsApp), and you need to search for files in the folders of the corresponding programs, not in the system directory of calls.
Searching for files through Explorer and managing them
To work more deeply with audio files, for example, to rename, copy or send them by email, you need to use a file manager. Poco X3 preinstalled the Explorer app, which has easy access to audio categories.
Open the Explorer app and select Audio, which automatically filters all audio files on the device. To find the conversation records, look for the path to the file or search for the.mp3 extension. Often files have date and time names, which makes it easier to search.
File management through Explorer provides more features than a standard player:
- 📂 You can move the record to another folder for systematization.
- ✉️ Send a file via Bluetooth, NFC or messenger by selecting "Share».
- ✂️ Cut down or change the format of a record using embedded or third-party editors.
When connecting Poco X3 computer-to-computer USB-cable, make sure that the file transfer mode is selected (MTP). In this mode, you'll see the phone's file system as a disk. Go to Internal shared. storage/MIUI/sound_recorder/call_rec. From here, you can copy files to your PC hard drive for long-term storage.
⚠️ Note: When connecting to a computer, do not remove the cable while recording or playing audio to avoid file system damage and data loss.
If you can't see the MIUI folder when you connect to your PC, maybe the phone asks for permission to access. Look at the lock screen of your smartphone and confirm the permission to transfer data. Without this step, the computer will only see the system partitions hidden from the user.
Automatic recording and sound quality setting
To avoid missing a moment in conversation, the recording function can be set to automatic mode. In Poco X3, this is done through the settings of the Phone application. Automation allows you to record all incoming and outgoing calls or only selected numbers without you.
To set up, go to the Phone app menu, select Settings → Call Record. You can activate the Automatic Call Record switch. You can also use the "Write Only Certain Numbers" option to create a whitelist of contacts for monitoring.
☑️ Auto-recording setup
The quality of the recording depends on the selected parameters. You can select the source of the sound from the recording settings menu. You should use the Microphone to record both interlocutors, although in some regions, due to legal restrictions, only a microphone is available, which only records your interlocutor or only you.
The table below shows the differences in quality settings and their impact on memory storage:
| Parameter | Description | Influence on the file |
|---|---|---|
| Quality: High quality | Maximum bitrate | The file takes up more space, the sound is cleaner. |
| Quality: Normal | Standard balance sheet | Optimal for most conversations |
| Source: Microphone | Recording through a speaker | Records both voices, noise is possible |
| Source: Voice | Internal channel | Clear sound, but can record one person |
The coding format also plays a role. Modern versions of MIUI can use the AAC or OPUS codec for better compression without loss of quality. If you plan to transfer records over a network with slow Internet, it makes sense to choose a format with a lower bitrate in the settings, if this option is available in your version of firmware.
Problem Solving: No sound or file not opening
One of the most common problems for Poco X3 users is when a record file exists but there is silence or only static noise when playing, often due to changes in Android security policies that prohibit apps from accessing the microphone while other apps are calling.
If you only hear yourself or someone else, check the source settings. In some regions, Google has completely banned recording conversations at the system level, in which case third-party apps can circumvent the ban by recording sound through a microphone, but the quality will suffer if you don't turn on speakerphone.
Why can the recording be quiet?
A file may not open if it's corrupted. This happens if the record is interrupted due to battery drain or system failure. Try opening the file on your computer with a VLC player that can read corrupted file titles. If that doesn't work, the file is likely lost forever.
Another reason for the lack of sound is that it's a conflict with other audio-based applications, so if you had a navigation app or a notebook running during a call, the system could redirect the audio stream, and the call was recorded without sound, and MIUI tries to prioritize the call, but there's a risk of failures when resources are scarce.
⚠️ Warning: Don’t try to “cure” records with online converters by uploading confidential conversations there.This violates your privacy and the data can be made public.
Cloud Synchronization and Backup
Recording conversations take up space, and losing them when your phone breaks will be frustrating. Poco X3 offers several ways (backups). The easiest is to use Google Drive or Mi Cloud. However, standard contact and call log synchronization does not include the audio files themselves.
You can use third-party applications such as FolderSync or Autosync for Google Drive to automatically sync your records folder. These utilities allow you to configure the rule: "If in the folder you can use the following: call_rec You get a new file, you copy it to the cloud, and that's real-time data security.
When using Mi Cloud, make sure you have enough free space.The free rate is usually limited to 5GB, which is not much for storing a lot of high-quality audio files.It is recommended to periodically upload old records to your computer or external hard drive, freeing up space in the cloud for new data.
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Automatic synchronization of the record folder to the cloud is the only reliable way to ensure the safety of important information in case of loss or breakage of a smartphone.
Manual backup via cable USB It's the fastest way to transfer a lot of data. X3 to the PC and copy the contents of the folder call_rec It can also help you free up space on your smartphone, improving your performance.