Xiaomi Sound: How to Set Up, Amplify, and Fix Problems

Xiaomi phones and smart devices are famous for their price-quality ratio, but even in top models like Xiaomi 14 Ultra or Redmi Note 13 Pro+ users sometimes face problems with sound. Then the speakers suddenly start wheezing at maximum volume, the microphone in calls works with interference, then the sound disappears after the MIUI update. This article will help you understand all the nuances of audio settings on Xiaomi devices - from basic parameters to hidden functions of the engineering menu.

We're going to look at not only the standard settings through the phone's menu, but also little-known tricks to improve the sound quality. For example, did you know that some POCO and Redmi models have a hidden equalizer for Bluetooth headphones? Or that the problem with "robotic" voice in calls is often solved by resetting one particular parameter in the network settings? If you want to get the most out of your Xiaomi audio system, read on.

Basic sound settings in MIUI

To start with, the most obvious is the standard audio settings that are available on any Xiaomi smartphone, regardless of model. Most users limit their volume control to side buttons, but MIUI has a lot more options for fine-tuning.

To open the basic parameters of sound, go to Settings → Sound and vibration.

• 🔊 Multimedia Volume – Adjusting the sound level for music, video, and games (separate from the volume of calls)
• 📞 Call volume – setting the incoming call signal level and alarm clock
• 🔔 Notification sounds – Melody selection for SMS, messengers and system alerts
• 🎵 Equalizer – preset audio profile settings (wired headphones only in most models)

Note the Do Not Disturb in the same menu, which allows you to adjust the silence schedule (for example, overnight) or allow sounds only from selected contacts. In models with IR- blaster (for example, Redmi Note 12 Pro), there is also audio control for the remote control.

Volume problems: Why the sound is too quiet or distorted

One of the most common complaints of Xiaomi owners is low loudness or maximum distortion of the sound, which can be either software (MIUI restrictions) or hardware (speaker contamination or malfunction).

First, check the obvious:

Make sure you don't activate Do Not Disturb mode | Check the physical cleanliness of the speakers (dust, dirt) | Turn off Bluetooth headphones if they're connected | Try playing the sound in another app (e.g. YouTube and Spotify) |Reboot your phone (sometimes helps with temporary crashes)

-->

If the problem persists, try the following solutions:

1. Reset the sound settings to factory: Settings → System → Reset settings → Reset the sound settings
2. Enable Volume Amplifier (not available on all models) in Settings → Special Features → Improve Sound
3. For models with stereo speakers (e.g. Xiaomi 13T), check the sound balance in Settings → Sound → Stereo sound balance

⚠️ Warning: If the sound is quieter or wheezing after a phone falls or moisture hits, it is almost always a hardware problem. Self-repairing speakers without experience can damage the microphone or antenna module.

Customization of sound for calls: microphone, noise cancellation, echo

Sound problems during calls are a separate pain for Xiaomi users, most often complaining about:

• 🤖 Robotized voice of the interlocutor (transmission distortion)
• 🔇 Sound loss in a speaker or microphone
• 🔄 Echo in the tube (the interviewee hears his voice)
• 🌊 Background noise (wind, interference) when speaking

The first thing to check is the quality of the network. In the call menu, type ##4636##, select Phone Information, and look at the ASU score. If it's below 10, the problem may be the weak coverage, not the phone.

To improve the quality of calls:

1. Activate Voice Improvement in Settings → SIM- Maps and Mobile Networks → Improve voice calls
2. Turn off VoLTE if problems occur: Settings → SIM- cards → [your SIM] → Use VoLTE]
3. Reset network settings: Settings → SIM-map → Resetting mobile network settings

💡

If the MIUI update has lost the sound in the calls, try resetting the Phone app: Settings → Applications → App Management → Phone → Storage → Clear the data. This will return the factory call settings without losing contacts.

Advanced sound settings through the engineering menu

For experienced users ready for experimentation, Xiaomi has a hidden engineering menu where you can fine-tune audio settings.Caution: improper changes to the engineering menu can cause speakers or microphones to fail!

To open the engineering menu:

1. Open the phone application
2. Enter the code ##36446337## (or #4636### for older versions of MIUI)
3. Select Hardware Testing → Audio

In this menu you will find tests for:

• 🔈 Dynamics - Checking the performance of the upper and lower speaker
• 🎤 Microphones – test of the main and secondary microphone
• 🔊 Amplifiers – diagnostics of hardware components
• 📊 Sensitivity - adjusting the levels of recorded sound

⚠️ Warning: You can accidentally turn off speakers or microphones on the engineering menu. If the sound is gone after the changes, reset via ##36446337# → Audio → Restore Default or return the phone to factory settings.

For models with Qualcomm Snapdragon (most POCO and Redmi), additional settings are available through the code # #847## - here you can test the vibration, speakers and microphones separately.

Optimizing Sound for Music and Video

If you use a Xiaomi smartphone as a player, you’ll need these tips to improve sound quality, and even budget models like the Redmi 12C can sound noticeably better when set up properly.

First, check the basic parameters:

• 🎧 For wired headphones, activate the equalizer in Settings → Sound → Equalizer (select Bass or Jazz profile for rich sound)
• 🔊 For built-in speakers, turn on Volume Amplifier in special features
• 🎵 Xiaomi Music has its own equalizer, which works regardless of the system.
• 🔇 For Bluetooth headphones, select the AAC or aptX codec in your device settings.

For advanced users:

Install Wavelet app to fine tune equalizer | Check bitrate in Bluetooth settings (should be ≥256 kbps) | Turn off power saving for music apps | Use Hi-Res Audio player (e.g. Poweramp)

-->

If you're listening to music through Bluetooth headphones, look for supported audio codecs. In models with Snapdragon 8 Gen 2 (such as Xiaomi 13 Pro), the aptX Adaptive codec is available, which automatically adjusts the bitrate to the communication conditions, to activate it:

1. Put the headphones on.
2. Open Settings → Connected devices → Settings gear next to your headphones
3. Select the Audio Codec → aptX Adaptive

Sound problems after MIUI update

Firmware updates often bring not only new features, but also sound bugs.

• 🔇 Complete absence of sound in speakers
• 🎵 Distortions in the playback of music
• 📞 Low volume in calls
• 🔊 Self-reversing volume level

The first thing to do is to clear the cache:

1. Go to Settings → About the phone → Memory
2. Click Clear Cache (this will not delete your data)
3. Reboot the phone.

If the problem persists:

1. Reset the settings of applications responsible for sound: Phone, Music, Settings
2. Check if third-party audio management apps (like Volume Booster) are installed – they may conflict with MIUI
3. Reverse to previous MIUI (if the problem has occurred since the last update)

For firmware rollback:

1. Download the desired version of MIUI from the official Xiaomi website
2. Rename the file to update.zip and place it in the root of the phone’s memory
3. Go to Settings → About Phone → System Update → Three Points → Select an Update File

💡

If the sound is gone after upgrading to MIUI 14/15, the most common way to do this is to reset the phone app and clear the cache, which solves the problem 90 percent of the time without completely resetting the phone.

Hardware problems with sound: when to carry in the service

Not all sound problems can be solved software-based. If you've tried all the tips in this article, the sound is still:

• 🔇 Completely absent from speakers
• 🎤 The microphone is not working (even after cleaning)
• 🔊 Distorted at any volume level
• 💦 Appeared after getting moisture

It is probably a hardware fault.

Typical hardware problems:

Before the service visit:

• Make a backup copy of the data (in case of a complete reset)
• Record a video demonstrating the problem (so that the master understands the essence of the malfunction)
• Check if your model is guaranteed (Xiaomi has an official warranty of 12 months)

⚠️ Warning: If the phone has been in water, don't turn it on or charge it! Remove the SIM- card and battery immediately (if possible), then take it to the service. The longer the device is on after moisture is injected, the greater the risk of contact corrosion.

Frequently asked questions