Xiaomi, Redmi and Poco smartphones feature an advanced Dictophone system application that often outperforms third-party counterparts in functionality. One of the most sought-after features is a built-in editor that allows you to work with audio tracks immediately after recording is completed. Users no longer need to search for complex editing programs or convert files on a computer to remove pauses or unnecessary conversations.
The process of cropping on MIUI and HyperOS is implemented in an intuitive way, although hidden behind several actions on the menu. You can easily separate an important section of a lecture, cut the silence from an interview or create a ringtone from a favorite song. Xiaomi system editor allows you to save a cropped fragment as a new file without affecting the original record, which guarantees the safety of the original data.
In this article, we will discuss the algorithm of actions for different versions of the shell, we will examine the nuances of working with a standard tool, discuss file formats and suggest alternatives if the built-in functions seem insufficient. Follow the instructions to make mastering audio a common thing for you.
Access to the list of records and navigation
The first step to get started is to log in correctly, and on Xiaomi devices it can be simply called a Dictophone or have an icon with a microphone image. Once launched, you will see a library of all the stored audio files sorted by date of creation, and navigation is as simple as possible for quick access to content.
To find the file you want, scroll down. If you have a lot of records, use the search function or filters if they are available in your firmware version. Pay attention to the file format: the default models are writing in M4A or MP3 format, which provides good quality at a minimum size. Older models could use AMR, which is also supported by the editor.
Select the recording you plan to edit with a pinpoint tap, opens a sound wave rendering interface, and that's where the basic controls are located. Don't jump right into the clipping, listen to the beginning and end of the file to pinpoint the boundaries of the piece you want.
- 🎙️ Click on the microphone icon in the notification curtain for a quick start.
- 📂 All files are stored in a folder MIUI/sound_recorder inner-memory.
- 🔍 Use a file name search if you have a long list of records.
⚠️ Warning: Before you start any manipulation of important files, make sure you have a copy of the original. Although the system tries not to damage the source, the human factor in the allocation of boundaries has not been canceled.
The player interface contains a scroll bar that responds to touch. You can move the slider anywhere in the record. For precise positioning, hold your finger on the screen or use rewind buttons if they are displayed in the interface of your version of MIUI. This is a preparatory step, critical for quality trimming.
Use of built-in audio recording editor
The main audio tool is in the option menu. At the top of the screen or in the bottom corner (depending on the orientation of the interface), there is a button with three dots or a menu icon. When you click on it, you will see a list of available actions, among which we are interested in the item "Edit" or "Change".
When you select the Edit command, you'll see a special mode, and you'll see a timeline with a dedicated area limited to two markers, usually blue or orange, that markers indicate the beginning and end of a future file, and anything that's left outside the designated area will be cut off when you save it.
☑️ Pre-trimming check
You can drag-and-drop the edges. You can tap the left marker and move it to the right to cut off the beginning of the recording. You can then do the same thing with the right marker, moving it to the left. You can often see a time stamp over the scale, showing the exact start and end times of the selected segment.
For maximum accuracy, use the zoom function if it is provided in the interface (usually a button with a magnifying glass or a pinch with two fingers). Approaching the scale allows you to set boundaries with millisecond accuracy, which is especially important when creating ringtones or cutting short quotes. After setting the boundaries, click the Save button or the tick in the corner of the screen.
- ✂️ Drag blue sliders to select fragment boundaries.
- 🔊 Press the play button to check the selected segment.
- 💾 Click Save to create a new file with cropped audio.
The system will tell you to confirm the action. It's important to understand that in most cases, a copy of a file with the prefix " edit" or similar is created, and the original remains unchanged, which protects you from accidental loss of data. If the result does not suit you, you can always delete the edited version and repeat the procedure.
Precise border setting and scaling
Often, automatically dragging sliders isn't enough for jewelry work, and in these cases, fine-tuning functions come to the rescue. Some versions of the HyperOS shell activate micro-correction mode when holding a finger on the slider, allowing you to shift the boundary literally one frame of audio stream.
Sound waveform visualization is key here, and peaks correspond to loud sounds, and straight lines correspond to silence, and your task is to set the left marker immediately after the previous noise has faded, and the right one before the next unnecessary sound begins. Visual analysis of the wave helps to avoid cropping words or, conversely, leaving too much hiss.
How to improve accuracy on a small screen?
Use pre-hearing. Don't save the file until you make sure the cropping went clean. Press play to play only the highlighted snippet. If you hear a click at the beginning or end, the boundary is set incorrectly -- you may have cropped the sound in the middle of a word or hit the compression artifact.
⚠️ Warning: When working with very long records (for example, a lecture for 2 hours), the application can run slower. Give the system time to render the timeline so that the sliders do not accidentally move.
If the built-in functionality seems limited, look for third-party solutions, but for 90% of tasks, the capabilities of Xiaomi Sound Recorder are quite enough.
Results saving and file management
Once you are satisfied with the result, you need to save the file correctly. Press the confirmation button (usually a tick or a "Done" button). The system automatically generates a new audio file. By default, it is assigned the original name with the added suffix or version number, for example, Rec_20231025_edit.mp3.
The finished file goes to the same folder as the original file, and you can find it in the Dictator app in the general list or through the file manager along the Internal Memory path./MIUI/sound_recorder/. It is convenient to rename the file into something more understandable, so as not to get confused in dozens of records with dates.
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Rename the file immediately after saving. Dates in the title (e.g, Rec_1025) In a month, nothing will be said, but the title "Lecture physics theme"1» It will help you find the right one quickly.
File management also includes the ability to remove failed trimming attempts. If the experiment failed, just pinch the file in the list and select the basket. Freeing up space on the internal drive is an important part of smartphone care, as high-quality audio files can take up a significant amount of space.
- 📁 Files are saved in source format (MP3, M4A, AAC).
- 🗑️ Remove intermediate versions after long press on the file.
- 📤 Share the result through the standard Share menu (Bluetooth, Telegram, WhatsApp).
Remember that you can send clipped recordings straight from the voice recorder interface, which is convenient if you recorded a voice message for work, cropped the extra and immediately sent it to a colleague without saving drafts in the memory of the device.
Creating ringtones from cropped records
One popular reason users are looking for a way to crop audio on Xiaomi is to create their own ringtones.The standard set of tunes is often boring, and setting your sound on a contact or incoming call adds personality.
The process of creating a ringtone begins with a quality crop. The optimal duration for a call is 15 to 30 seconds. Select the brightest snippet of a song or a funny phrase. After saving the file as described above, go to the settings of the smartphone.
Go to the Settings section → Sound and vibration → Phone call. In the tone list, scroll to the bottom, and it'll have a button called "Select local ringtone" or "Add." In the file manager that opens, find the folder. sound_recorder And you pick your cropped file, and the system recognizes it as audio, and you'll ask you to install it.
| Parameter | Recommendation for ringtones | Limitation of the system |
|---|---|---|
| Duration | 15-30 seconds. | Maximum 2-3 minutes |
| Format | MP3 or M4A | All formats of the dictaphone are supported |
| Loudness | Maximum | Depends on the original record. |
| Location. | folder sound_recorder | Any folder available |
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To set up a contact, open Contacts, select a person, click Change → Rington, and select your file from the local list.
You can also set unique sounds on message notifications (SMS, WhatsApp, Telegram), the same principle: crop a short clip (3-5 seconds) and select it in the settings of a particular application or in the general settings of the notification sound.
Alternative methods and third-party applications
Despite the functionality of the standard tool, sometimes there are situations when more complex installation is required: gluing several files, overlaying effects or working with tracks in WAV format without losing quality, in which cases applications from Google Play come to the rescue.
A popular solution is the MP3 Cutter and Ringtone Maker, which allows you to not only cut, but also mix tracks, change the playback speed and add fade-in/fade-out effects.
Another method is to use online services through a browser, where sites like mp3cut.net allow you to download a file, crop it in the browser and download the result, which is convenient if you're working on a computer or don't want to install unnecessary apps on your phone.
However, for the quick, everyday task of cutting a piece, Xiaomi’s built-in functionality remains the fastest and most energy efficient solution: it does not require internet, does not contain advertising and is integrated into the system, which ensures stable operation even on low-end Redmi models.