How to increase the volume of headphones on the Xiaomi phone

Owners of Xiaomi, Redmi and POCO smartphones often face situations where the standard volume of sound in headphones seems insufficient, which may be due to software restrictions imposed to protect hearing, as well as the features of Bluetooth codecs or the characteristics of the headset itself. However, modern shells MIUI and HyperOS provide users with a wide range of tools to fine-tune the audio stream.

Before resorting to radical measures or installing third-party software, you need to eliminate trivial physical obstacles.Contamination of the speaker grid, low battery charge of the wireless headset or a loose fit of the plug in the 3.5 mm connector can reduce the final volume by 20-30%. Make sure that the Bluetooth settings turn off the function "Absolute Volume" if it works incorrectly, since desynchronization of the sliders often leads to a quiet sound.

In this article, we will discuss all legal and safe methods of improving sound levels. We will look at the built-in capabilities of the system, hidden developer settings and specialized applications-amplifiers. The right configuration of a digital-to-analog converter (DAC) and the choice of the appropriate data codec can dramatically change the quality and volume of playback.

Basic setting of the sound profile and equalizer

The first step should always be to go deep and check the standard audio settings that users often ignore. There is a preset equalizer in the MIUI or HyperOS shell that can significantly raise the signal level in certain frequency bands. Go to the Settings menu → Sound and Vibration → Sound Effects (or Mi Sound).

To increase the overall volume, you should choose a Rock or Pop profile, as they have a V-shaped amplitude-frequency characteristic with low and high frequency rises. If you use wired headphones, activate Hi-Fi mode if your DAC supports this function. This switches the audio track to lower compression mode and higher output voltage.

Note the "Sound Improvement" feature, which can be hidden in the additional speaker settings. Turning on this option uses software post-processing that subjectively makes the sound louder and more saturated. However, it's worth remembering that excessive bass amplification can lead to wheezing in budget headphone models.

⚠️ Warning: Prolonged listening to sound at maximum volume with amplifiers on can lead to irreversible hearing damage and rapid wear of the headset speakers.

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Use the “Hearphone Setup” feature in the audio menu to make the phone calibrate the frequencies specifically for your headset model, which often gives you a volume gain better than just a twisted slider.

Use of Bluetooth codecs and developer settings

For wireless devices, a critical parameter is the audio data codec. The standard SBC (Sub-band Coding) codec often limits bitrate and dynamic range, making the sound quiet and flat. To change that, you need to activate the developer menu. Make 7 quick taps on the build number in the About Phone section, then go to Advanced Settings → For developers.

Inside the Bluetooth Audio Codec, choose a more advanced option if your headset supports it. AAC, aptX or LDAC codecs provide more data transfer and often have a higher output level. LDAC is capable of transmitting 3 times more data than standard Bluetooth audio, which directly affects the detail and perceived volume.

Also on the developer menu, you should find the item "Switch off absolute volume." Try to switch its state. In some scenarios, desynchronizing the volume control between the phone and the headphones causes the system to artificially lower the signal level. If after switching the sound became louder, but the adjustment from the phone buttons disappeared, return the setting back and try to restart the devices.

Application of third-party amplifiers

When system tools are scarce, specialized applications from Google Play come to the rescue, with Precise Volume, the leader in this niche, which allows you to create complex volume profiles, and can set the amplification level above the standard 100%, up to 200% or more, for various use cases (for example, separately for media, calls or alarm clocks).

Another powerful tool is the Volume Booster GOODEV. This app works as a simple but effective signal amplifier before it is sent to the audio output. The interface is minimal: one slider that regulates the gain percentage. It is important to increase the value smoothly, starting from 10-20%, so as not to cause digital distortion (clipping).

• 🎧 Precise Volume – allows you to customize a 5-band equalizer and bass booster in addition to the amplifier.
• 🔊 Volume Booster GOODEV — Simple solution for quick one-time volume increase without unnecessary settings.
• 🎚️ Equalizer FX — Professional tool with a pre-amp, which raises the signal level before equalizer processing.

Using third-party software requires permissions, and when it first runs, it will request access to Special Features or create an audio profile, which is necessary to intercept the audio stream, and without these rights, it will not be able to interfere with the Android sound engine.

Engineering menu and deep sound calibration

For advanced users who are not afraid of system settings, there is an access to the engineering menu. On Xiaomi devices with MediaTek processors, you can sign in via the code ##3646633# in the Phone application. For Snapdragon processors, the codes may differ or require the installation of a special MTK Engineering Mode application.

From the engineering menu, you need to go to the Hardware Testing → Audio → Audio Debugging tab. You can find Gain settings for different volume levels (Level 0-6). By changing the values in the Digital Gain fields, you can force the signal level to be raised for each step of the volume control.

Be extremely careful when changing the digital values. Too high Gain will cause the sound to be deafening and hoarse even at the minimum volume. It is recommended to write down the initial values before making changes to be able to roll back. After changing the parameters, be sure to press the Set button and restart the device.

⚠️ Warning: Incorrectly changing the parameters in the engineering menu can cause damage to the speakers or the appearance of constant noise in the audio track.

Comparison of volume-raising techniques

The choice of method depends on your technical background and the type of headphones used. The table below compares the main ways to choose the most suitable for your situation. Each method has its advantages and risks that must be considered.

If you use wired headphones with your own DAC (external sound card), the smartphone settings may be ignored, in which case the volume is controlled only by the physical buttons on the cable or the DAC wheel itself. Make sure that the USB settings are connected to the "Digital audio output" mode, not "charging".

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The safest and most stable result is a combination of choosing the right Bluetooth codec and setting up the system equalizer, without having to go into deep system settings.

Frequently Asked Questions (FAQ)