How to change the volume of conversation in Xiaomi: from basic settings to engineering menu

The situation when the interlocutor is not heard during an important call is familiar to many smartphone owners, especially for Xiaomi devices, where the software features of the MIUI or HyperOS shell can affect the final sound level. The speaker volume is not a static parameter, but a complex setup that depends on many factors, including software limitations and the physical condition of the device.

Often users find that even at maximum, the sound does not seem loud enough or, conversely, too sharp. This can be due to both factory regional restrictions and improper calibration of the audio codec. Understanding how to change the volume of conversation in Xiaomi allows not only to improve the comfort of communication, but in some cases, to solve the problem of a quiet speaker without going to the service center.

In this article, we will take a look at all the adjustment options available, from standard sliders to advanced methods through the engineering menu, and learn what settings can block sound and how to configure them correctly for maximum communication quality.

Basic volume control during the call

The most obvious, but often ignored, method is manually adjusting the phone at the moment of a conversation. Many users forget that there is a separate volume channel for telephony on Android that is not associated with multimedia sound or alarm clock. To increase the level, just press the volume button on the side of the smartphone during an active call.

However, if the standard maximum is not enough, it is worth checking whether the volume reduction function is activated in dangerous situations.In some MIUI firmware, there is an algorithm that automatically lowers the sound level if the proximity sensor believes that the phone is too far from the ear, although this is rare.

Also, notice the physical cleanliness of the speaker, the speaker grid at the top of the screen, often clogged with dust, skin fat, or pile from your pocket, creating an acoustic barrier that makes even the maximum program volume seem quiet.

⚠️ Attention: Do not attempt to clean the speaker with sharp objects such as needles or pins. you risk damaging the speaker membrane or pushing dirt even deeper. use a soft dry brush or a special cleaning gel.

To quickly check the cleanness of the speaker, you can use a flashlight by shining an angle into the grid. If you see a dense layer of dust, walk gently with a soft toothbrush. This simple action often returns up to 30% of the lost volume.

Customization of sound effects and equalizer

Xiaomi’s shell provides users with advanced audio tools that are in the settings menu. To get to them, go to Settings → Sound and Vibration → Sound Effects. Here, you can see the settings that directly affect how you hear the other person.

The sound effects section often activates "Mi Sound" or third-party enhancements like Dolby Atmos. Try to switch these modes during a test call. Sometimes the standard profile sounds quieter than the "Balance" or "Bright High Frequency" profile.

If you have a graphical equalizer available in your region or firmware version, try lifting sliders in the medium to high frequency range (approximately 1 kHz to 4 kHz), which is where the main frequency of human speech lies.

• 🎚️ Preset profiles: Select Voice or News mode if available, as they are designed to be legible.
• 🔊 Mono sound: In special features, you can include mono sound, which sometimes helps to concentrate the audio stream.
• 🎧 Headphones: If you use a headset, the settings can be applied separately for it, check this item in the menu.

Remember, changes in the equalizer can distort the sound, making it less natural, and the key is to find a balance between volume and legibility, so that the voice does not turn into a pile of noise.

Use of the Engineering Menu for Calibration

For advanced users who want to gain full control of the audio codec, there is an engineering menu, a hidden part of the system designed to test hardware components, and it is logged in through a special set of code in the Phone application.

Enter the code ##64663## or ##4636## (codes may vary depending on the model and version of Android). In the Hardware Test menu, you will find a section related to audio, often called "Audio", "Speaker" or "Loopback".

Inside the audio test menu, you can see "Receiver" and "Speaker" -- you can force the speaker to the maximum power to check if it's working, and sometimes you can use Gain to amplify the signal.

⚠️ Warning: Be extremely careful when changing Gain values in the engineering menu.Too high gain can lead to wheezing, distortion and, in the worst case, burnout of the speaker.

If you accidentally change the settings and the sound gets worse, don't panic. In most cases, resetting your phone to factory settings returns the engineering menu settings to their default values.

Influence of region and firmware version

One of the hidden causes of silent sound is the region chosen when you first set up your smartphone, and different countries have different limits on the maximum volume of the beep, such as the European Union, which has strict rules on hearing protection that programmatically suffocate the speaker.

If your phone has a Global EU firmware, but you are in a region with different regulations (e.g. Russia or CIS), it makes sense to change the region in the settings. Go to Settings → Advanced Settings → Region and select a country where the restrictions are less stringent, such as India or the United States (if firmware allows).

Changing the region often leads to additional features and changes in system behavior, including audio compression algorithms, which is one of the most effective non-drug ways to raise the volume without installing third-party software.

Consider that changing regions can affect some system applications, such as Themes or Music, by limiting their functionality to the content of a new region, but the quality of voice calls is extremely positive in terms of volume.

Third-party amplifiers

If there are not enough system tools, Google Play Store applications, specifically designed to amplify audio, come to the rescue by software processing the audio stream, raising its amplitude above standard limits.

Popular apps like Volume Control Plus or Super Volume Booster allow you to independently adjust the volume for different types of sound, but it’s worth remembering that they consume additional CPU resources and can land the battery faster.

When installing these applications, be sure to check the permissions you're asking for. They need access to sound control, but asking for contacts or geolocation should alert you. Use only proven high-ranking software.

• 📈 Precise Volume: allows you to create profiles for different use cases.
• 🔊 Volume Booster GOODEV: simple application with one gain slider.
• ⚖️ Balanced Sound: Focuses on frequency alignment, not just volume.

Using third-party software is a trade-off: You get more volume, but you sacrifice the naturalness of the sound and maybe the stability of the audio driver.

Diagnostics of hardware problems

If none of the software methods worked, there's a high probability of hardware failure, a speaker is a mechanical device that wears out over time, and understanding the symptoms will help determine if a component needs to be replaced.

Frequent signs of malfunction include wheezing at high volume, no sound in one ear (with stereo), or periodic loss of sound when pressed on certain areas of the body, and it is worth checking whether moisture has entered the device, even if it has IP68 protection.

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Run the speaker test through the built-in menu CIT. Enter the code ##6484## (or find it in the engineering menu), select Receiver and Speaker. If the test sound is clear and loud, and the calls are quiet, the software problem or the problem is the problem. SIM-map.

In some cases, the problem is not the dynamics itself, but the plume or contact group. SIM-Cards sometimes help restore normal contact and improve communication quality.

⚠️ Note: If the phone falls or comes into contact with water, self-opening can lead to loss of warranty.

For final diagnosis, you can plug in an external Bluetooth headset, and if it's sounding normal, then the problem is exactly the conversational dynamics of the smartphone, and if the sound is quiet everywhere, it could be a modem or an antenna module.

Frequently Asked Questions (FAQ)

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Software setting solves 90% of quiet sound problems: Start by cleaning the speaker grid and changing the region before carrying the phone for repair.