Trimming recordings of the recorder on Xiaomi: all ways and life hacks

Recordings from the recorder on Xiaomi smartphones often contain unnecessary pauses, noise or unnecessary fragments — for example, when you forgot to turn off the recording after the conversation. You can crop the audio file directly on your phone without installing third-party applications: the standard Dictator app (com.miui.voiceassistant) has a built-in editor. However, not all users know where to look for this feature and how to use it without loss of quality.

In this article, we will discuss 3 ways to trim – through a standard application, with a file manager and through third-party utilities (if your version of MIUI does not have an embedded editor), and learn how to fix typical errors like “no cropped file is saved”** or “the crop button is gone”, and what formats are supported on different Xiaomi, Redmi and POCO models.

1.Pruning through a standard Xiaomi voice recorder (MIUI 12–14)

The easiest way is to use the built-in editor in the Dictophone app.** It is available on most devices with MIUI 12 and later, but may not be available on budget models (e.g. Redmi 9A or POCO M3). Check your firmware version in Settings → About Phone → MIUI version.

To cut the record:

1. Open the Dictophone app** (the microphone icon on your desktop or in the application menu).
2. Find the desired entry in the list and tap it – the player will open.
3. In the lower right corner, click on the Scissors icon** (or Edit in some versions).
4. Drag left and right sliders on the timeline to highlight the desired snippet.
5. Click Save ** - the system will prompt you to replace the original or create a copy.

⚠️ Note: If the file is not played after pruning, check the format. Xiaomi's standard voice recorder saves the records in the.m4a (AAC), but some versions MIUI can convert them into.mp3 If artifacts (wheezing, cliffs) appear after pruning, try saving a copy in a different format through a third-party app.

2. Why may there be no cropping button?

If your voice recorder doesn’t have an editing feature, the reasons may be as follows:

• 📱 An outdated version MIUI: On firmware older MIUI 11 editor missing. Update system in Settings → Update of the PO.
• 🔧 System applications disabled: Check if the recorder is disabled in Settings → Annexes → Application management → Dictaphone.
• 📁 Damaged Record Files: If a record was transferred from another device or downloaded from the Internet, it may not support editing.
• 🛠️ Regional restrictions: Some models for the markets of India or China have reduced the functionality of the voice recorder.

If the MIUI update didn’t help, try resetting the voice recorder settings:

1. Go to Settings → Applications → Recorder → Storage.
2. Click on “Clear Data” and “Clear Cache”.
3. Restart the phone and check for a clip button.

3. Trimming through the file manager (alternative method)

If a standard editor is not available, you can crop audio through the built-in Explorer** (com.mi.android.globalFileexplorer).This method works on all Xiaomi models, but requires manual selection of timestamps.

Instructions:

1. Open Explorer** and go to Internal Storage folder → MIUI → sound_recorder.
2. Find the file you want (usually in.m4a or.amr) and tap it.
3. In the player, click on three dots ("More") and select "Cut".
4. Specify the beginning and end of the fragment, then save the new file.

⚠️ Note: When pruning through a conductor, the sound quality may deteriorate if the original file was compressed with loss (for example,.amr). For critical recordings (interviews, lectures), it is better to use specialized applications like Lexis Audio Editor or WaveEditor.

Check the space available on your phone (needs a minimum of 100MB)

Close all background apps (especially messengers)

Connect your phone to charge (long-term processing drains the battery)

Make a backup copy of the original file-->

Third-party precision trimming applications

If the built-in tools don’t work, install one of these apps (all are free and compatible with Xiaomi):

For installation:

1. Download the app from Google Play or APKMirror (if you don’t have access to Google services).
2. Open the file and allow installation from unknown sources in Settings → Security.
3. Start the program, import the record and trim it with sliders or time stamps.

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If after trimming in a third-party application, the file is not played in the Xiaomi voice recorder, convert it to M4A with a bitrate of 128 kbit / s. Audio Converter or online services like Online-Convert are suitable for this.

5. Frequent errors and their correction

When you trim a record, Xiaomi users face typical problems. Here's how to solve them:

• 🔇 No sound after pruning: Check if the record is worth the pause in the player. If the problem persists, save the file in a different format (for example, from the user's computer). AMR into MP3).
• ⏱️ No time stamps saved: Update the Dictator app via Google Play or GetApps. If no updates are available, reset its settings (see Section 2).
• 📱 The app crashes when it's trimmed: Clear the tape recorder cache and restart the phone. If the error repeats, try cropping the file through Explorer»**.
• 🔄 The cropped file replaces the original: Before saving, select the option to “Create a copy” rather than “Replace».

If none of these methods work, check the integrity of the file system:

1. Connect your phone to your PC via USB (in file transfer mode).
2. Run the command prompt and execute: chkdsk X: /f (where X is the drive letter of your phone).
3. After checking, restart the device.

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Before any manipulation of the tape recorder records, back up the files. MIUI/sound_recorder — Copy them to the cloud or on PC.

6.Optimizing records after cropping

Cut files often take up as much space as the originals, so that they can be reduced in size without losing quality:

• 🎵 Convert to MP3 96-128 kbps bitrate: Use Audio Converter or MediaHuman.
• 🗜️ Delete metadata: In applications like MP3Tag clear the fields ID3-tags (they can weigh several megabytes).
• ☁️ Upload to the cloud: Google Drive or Mi Cloud services compress audio without loss.
• 📂 Archive: If there are many records, pack them in ZIP or RAR (compression%).

For voice recordings (lectures, interviews), it is better to use the M4A format (AAC) - it provides better quality at a smaller size compared to MP3.

1. Open the file in Lexis Audio Editor.
2. Select Export and select the M4A format.
3. Set a bitrate of 64-96 kbps for speech or 192 kbps for music.

7. Comparison of pruning methods: which one to choose?

The choice of method depends on your Xiaomi model and tasks:

For most users, a built-in editor is enough. If you want accurate cropping (for podcasts or music tracks, for example), you should use WaveEditor or Lexis Audio Editor. Older models (Redmi 4X, Mi A1) will have to rely on third-party utilities or conductor.

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On devices with MIUI for POCO (e.g., POCO X3), the voice recorder functionality may differ. Check for a crop button after upgrading to the latest firmware version.

FAQ: Answers to Frequent Questions