Are you tired of the fact that during calls the person literally βscreamsβ in your ear, and the volume control on the side panel of the Xiaomi smartphone does not save? Or vice versa, at maximum volume, barely audible voices? The problem is not your hearing and not the network of the operator. It is the MIUI settings, which are optimized by default for the βaverageβ user, but do not take into account individual preferences or the specific acoustics of a particular model.
In this article, weβll look at 7 proven ways to reduce (or increase) the volume of conversation on Xiaomi, Redmi, POCO and Black Shark phones, from basic settings to obscure firmware chips, learn how to calibrate the sound to your needs, bypass system limitations, and even fix hardware problems if they cause discomfort, and also why sometimes the volume βjumpsβ on its own and how to prevent it.
1. Standard Volume Settings: What Are You Missing?
Most users limit their volume to the buttons on the body, but MIUI has separate sliders for different types of sound.
- During the call, press the volume button on the sidebar.
- In the window that appears, tap the pin on the gear icon (βοΈ) slider-side.
- Choose Talk Volume (not to be confused with Media or Alarm Watch).
You can set a 0 to 100% value here, but there is a caveat: in some models (for example, the Redmi Note 12 or the POCO X5 Pro), the slider is blocked at 70-80% due to hearing protection. To remove the restriction, you will need to activate the Developer Mode (more about this in the next section).
Also check if the Augmentation mode is activated in the special features settings (Settings β Special Opportunities β Hearing) This feature is designed for people with hearing impairments, but sometimes it is turned on accidentally and distorts the sound.
β οΈ Warning: If the volume is reset after rebooting after changing the settings, reset the Phone app cache (Settings) β Annexes β Application management β Phone. β Warehouse β Clear the cache).
2. Hidden sound settings through developer mode
If a standard slider doesn't let you down the volume to a comfortable level, you'll have to use hidden MIUI settings.
- Activate Developer Mode: Go to Settings β About Phone. Tap 7 times on MIUI Version (you will be notified "You are a developer").
Settings β Additional β For Developers
Network β Limiting the volume of conversation
turn off
Now, in the volume settings during the call, the slider will move to the minimum level without locking. Note: in some firmware (for example, MIUI 14 for the global version), this item may be called Disable absolute volume - it also needs to be deactivated.
Developer mode activated|Backup of important data is made|Battery charge > 30%|Disabled. VPN Proxies (can block access to settings)-->
For POCO F4, Xiaomi 13 and later, an additional step may be required: in the same developer menu, find Debugging over USB and turn it on (this will temporarily unlock some audio restrictions).
3. Microphone calibration and speaker: when the problem is not in settings
If even after all the manipulations the volume remains unstable (it is too quiet, then suddenly loud), the fault may be incorrectly calibrated microphone or speaker, a common problem after firmware updates or mechanical damage (for example, after a phone crash).
You can check and correct this as follows:
- π Speaker test: Call 112 (call reset automatically) and listen to the tone, and if it's distorted or too quiet, the speaker is damaged.
- π€ Microphone test: Record a voice message on WhatsApp or Telegram, and if your voice sounds muffled or jammed, the microphone is contaminated or malfunctioning.
- π§ Software calibration: Install the SoundAbout app from Google Play and manually select the sound source for conversations (Media) β Phone call audio).
If tests show a hardware malfunction, try cleaning the speaker and microphone with compressed air (a tank for cleaning equipment).Do not use needles or toothpicks - this can damage the membrane. For models with stereo speakers (for example, Xiaomi 12T), check both speakers separately.
What if the speaker is only "hrizzing" at maximum volume?
4.Applications for fine tuning of sound
If the built-in MIUI tools don't work, use third-party utilities that allow you to adjust volume in 1% increments, adjust the equalizer for voice, and even block automatic volume increase when the network signal is bad.
| Annex | Functions | Suitable for | Limitations |
|---|---|---|---|
| Volume Booster | Increase/reduce volume to 200% of standard, equalizer | All Xiaomi models on Android 9+ | Requires root for complete control |
| Precision Volume | Thin volume setting with 1% increments, separately for each type of sound | MIUI 12-14, except for the POCO M4 Pro | It doesnβt work on some custom firmware. |
| SoundAssistant | Separate adjustment of left / right speaker, blocking of automatic volume | Models with stereo speakers (Xiaomi 11T, Redmi K50) | Could be in conflict with Dolby Atmos |
| ViPER4Android | Advanced equalizer, sound compressor, distortion prevention | Only for hardened devices (requires Magisk) | A complex setup for beginners |
To install ViPER4Android on Xiaomi without root rights, follow this instruction:
- Download the latest version from the XDA forum.
- Install APK and launch the application.
- In the driver settings, select Compatibility mode.
- Reboot the phone.
π‘
If after installing ViPER4Android, the sound in the calls disappears, turn off the Audio Tunnel option in it and restart the device.
5.Firmware issues: When the update breaks the sound
After major MIUI updates (e.g., MIUI 13 to MIUI 14), many users experience automatic volume increase during conversation or jumps, due to a change in the sound processing policy of new firmware versions.
Decisions:
- π Reverse to previous version: If the problem appears after the update, go back to the old firmware via Fastboot (instructions for Xiaomi here).
- π± Resetting sound settings: Go to Settings β Annexes β Application management β Phone. β Warehouse β Reset the settings.
- π οΈ Manually edit configuration file: For power users, change the setting voice_call_volume file-wise /system/build.prop (root).
If you donβt want to roll back, try an alternative solution: install the 4G Voice Call Patch app from Google Play, which fixes VoLTE errors that often cause unstable volume.
β οΈ Note: On Xiaomi models with Snapdragon 8 Gen 2 processor (Xiaomi 13 Ultra, Redmi) K60 Pro after updating to MIUI 14.0.5+ You may lose the sound when you activate Dolby Atmos. β Sound. β Sound quality.
Hardware solutions: when software methods do not help
If all of the above methods fail, the problem may lie in the hardware of the phone, and the most common causes and solutions are:
- π Battery discharge: At charge level below 15%, Xiaomi automatically lowers the speaker volume to save power.Plug in charging and check the sound again.
- π‘οΈ Overheating: If the phone gets hot (like after a game), the system can limit the volume. 10-15 minute.
- π Contact oxidation speaker: A common problem after moisture is injected. The solution is disassembling and cleaning in the service center.
- π‘ Bad signal: In low-course areas, the phone automatically increases volume to compensate for interference. 3G (Settings β SIM-maps and mobile networks β Preferred type of network β 3G).
For models with an infrared port (Xiaomi Mi 10, Redmi Note 9 Pro), check if the IR port conflicts with the speaker. Sometimes when the remote is activated, the volume of calls drops. Turn off the IR port to Settings β Connected devices β Infrared port and test the sound.
π‘
If the volume "jumps" only when using the headset, the problem is incompatibility of the impedance headphones with the audio chip Xiaomi. try headphones with impedance 16-32 ohms (for example, the original Xiaomi Hybrid).
7. Frequent User Errors and How to Avoid Them
Many people make the volume problem worse themselves without knowing it. TOP-5 mistakes and how to correct them:
- Using closed speaker cases, even a small obstacle in front of the grille can turn the volume down by a small amount of time. 30-40%. Solution: Use cases with a cutout under the speaker or remove them during calls.
- Activate Do Not Disturb mode during a call. In MIUI, this mode by default mutes all sounds, including conversations. Check for exceptions to Settings β Sound β Do Not Disturb β Allow interruptions.
- Update your firmware through OTA with low battery power. If the phone turns off during the upgrade, it can damage the audio driver. Always update at >50% charge.
- Use smart features like Adaptive Sound, which automatically adjusts volume to ambient noise, but often doesn't work properly. Turn it off in Settings β Special Options β Hearing.
- Install custom firmware without sound patches. Many informal firmware (like LineageOS) don't have drivers for Xiaomi audio chips. Use only firmware marked "Audio Fixed."
If you make frequent calls in noisy places (such as on the street or in traffic), turn on the Voice Improvement feature in your phone settings (Settings β Sound β Voice Quality β Voice Improvement) which suppresses background noise, but can slightly distort the voice of the interlocutor.