How to improve the sound in headphones on Xiaomi: from system settings to Hi-Res audio

Xiaomi smartphones have long proven to offer a great balance between price and functionality, but audiophiles often lack the standard sound out of the box. Owners of Redmi Note models or flagship Mi and Xiaomi series often find that when connected to high-quality wired or Bluetooth headphones, the sound seems flat or devoid of deep bass. This is not a defect, but rather a consequence of software restrictions or incorrect factory settings that are easy to fix.

Deep customization of the MIUI shell and the new HyperOS allows users to access hidden audio system settings that are turned off by default to save battery power or compatibility with cheap headsets. To get the most out of your smartphone, you need to go from basic calibration of the system equalizer to the introduction of advanced audio codecs. The right setup can dramatically change the perception of music by adding volume and detail that were previously hidden.

In this article, we will look at all available methods for improving audio tracks, from built-in system tools to installing specialized software. You will learn how to activate high-resolution support, which codecs to choose for wireless data transfer and why a standard player can play music worse than third-party applications. Engineering menus and system modifications will also be considered for those who are ready for more complex experiments.

Basic setup of system equalizer and sound effects

The first step to quality sound is to fine-tune the built-in equalizer, which is often ignored by users. In Xiaomi's standard shell, the path to these settings usually lies through the Settings menu → Sound and Vibration → Sound Effects. Here is a basic graphical equalizer that allows you to adjust frequency bands manually. Standard presets like Rock or Pop often sound too aggressive, so the best solution is to manually calibrate to a specific headphone model.

To start, try resetting all the equalizer settings to zero and running a track you know well. Smoothly lift the low-frequency sliders (left) to add bass, but make sure the sound doesn't get buzzy. Mid-frequency is responsible for vocals, and high-frequency add air and detail. If you use wired high-impedance headphones, make sure the audio settings activate the sound enhancement mode in the headphones, which amplifies the output.

Don't forget about the Dolby Atmos or Dirac feature, if it's available in your model. These technologies create virtual surround sound, which is especially noticeable when watching movies. However, for listening to music in stereo, it's sometimes better to turn them off, because they can introduce artificial distortions into the original mix of the track. Experiment with switching these modes to find a balance between volume and purity of sound.

⚠️ Attention: Excessively amplifying low frequencies at maximum volume can lead to speaker wheezing or membrane damage in budget headphones.

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For quick equalizer setup, use test tracks with a wide dynamic range, not compressed ones. MP3-low-quality.

Activation of Hi-Res Audio and selection of Bluetooth codecs

Wireless headsets often don’t realize that their smartphone can transmit sound in the compressed format by default, even if the headphones are high quality. To fix this, you need to activate the hidden developer menu. Go to Settings → About phone and quickly click on the build number (MIUI Version) seven times, after which the menu will appear “Developers”.

Inside the developer menu, find the Bluetooth Audio Codec. Here you will see a list of available codecs: SBC, AAC, aptX, aptX HD, LDAC or LHDC. The standard SBC codec provides minimal quality, whereas aptX HD and LDAC are capable of transmitting almost lossless sound. Choose the highest bitrate codec supported by your headset. If there is no audio or it interrupts after selecting, then your headphones do not support this standard, and the system will automatically roll back to the previous one.

Also on this menu, you should pay attention to the item "Allow choice of Bluetooth codec." Make sure it is activated, otherwise the phone may ignore your preferences and use a standard profile. TWS-Headphones from Xiaomi and Redmi are especially useful codec LHDC, It is optimized for Qualcomm chips, which are often used in these devices.

In addition to codecs, the developer menu has a setting called "Absolute Volume Level." Try to change its state (on or off). On some headphone models, desynchronization of the volume of the phone and headset is solved by switching this switch, which allows you to use the full volume range without distortion.

Using third-party applications to amplify sound

Android's regular tools are sometimes not enough to fine-tune, and here come specialty apps from Google Play. One of the most powerful tools is Poweramp Equalizer, which intercepts audio streams and allows complex processing chains. Unlike the system equalizer, this app supports parametric correction, which allows you to remove resonant frequencies, rather than just lift or lower sliders.

Another popular solution is the Bass Booster app or the Volume Booster GOODEV. They allow you to amplify the output signal above the standard 100%, which is critical for quiet headphones or when watching movies in noisy places. However, using such amplifiers requires caution: digital amplification can lead to clipping (digital distortion) if you overdo it with the level (gain).

• 🎧 Poweramp Equalizer is the best choice for audiophiles, supports Viper4Android and complex prestos.
• 🔊 Volume Booster is a simple solution for maximum volume increase in one click.
• 🎛️ Flat Equalizer – Minimalist interface and low battery consumption.

If you have multiple apps, make sure that only one audio processor is active, and some streaming services, such as Spotify or Apple Music, may have their own built-in equalizers that prioritize the system.

Comparison of codecs and their impact on quality

Understanding the differences between audio codecs is key to choosing the right hardware. Not all codecs are created equal, and the difference in bitrate can be enormous. Below is a table showing the main characteristics of popular compression formats available on Xiaomi devices.

As you can see from the table, switching from SBC to aptX HD or LDAC gives you almost three times the amount of data you transmit, especially in complex music compositions with more instruments, but it is worth considering that high-resolution codecs are more battery-consuming and more sensitive to interference in the air.

If you see constant interruptions in high codec selection, try lowering the quality of the transfer in the developer settings (for example, in LDAC, select Priritize Connection mode instead of Priritize Audio Quality). This is part of the detail for the sake of stable connection, which in urban traffic is often a justified compromise.

Customization of sound for wired headphones and DAC

For users who still value wired connectivity, Xiaomi offers a number of features, especially in models without a 3.5mm connector.Using an external DAC (DAC) via USB-C or adapter can greatly improve sound, as the smartphone's built-in audio chip is often subject to electromagnetic hoops.External digital-to-analog conversion takes all the dirty work on itself, giving out a pure analog signal.

Xiaomi's audio settings often feature the "Mi Sound Enhancer" or similar, custom-made headphones. If you use third-party acoustics (like KZ, Moondrop or Sony), it's best to disable this effect, as it adds an unnatural color to the sound.

⚠️ Note: When using cheap adapters USB-C 3.5mm (without built-in DAC) sound may be quieter or absent altogether. Make sure your adapter has a conversion chip.

It is also worth checking the settings in the engineering menu, although access is limited in new versions of Android. Code set ##6484## opens a test menu where you can check the audio chip, but deep changes to hardware limits are usually not available without root rights. For most users, it is enough to make sure that the developer mode has disabled the option "Disable absolute volume level" if there are problems with synchronization.

Secrets of setting up popular music apps

Even a perfectly configured system can sound bad if the source app itself is set up incorrectly. In popular streaming sites like Yandex Music, Spotify or Apple Music, you must go to the playback settings. Often the default is Auto or Traffic Savings, which streams music in a low bitrate (128 kbps), negating all efforts to adjust the equalizer.

Set the maximum available quality (usually High or Hi-Fi). In the VLC Player app for local files, you can enable post-processing and volume normalization, which allows you to level the level of quiet and loud tracks in the playlist. Local players often give more control over decoding than streaming services.

The Neutron Music Player app has its own audio rendering engine that bypasses the standard Android Audio HAL constraints. It's a "heavy artillery" for those who want to get the sound as close to the studio master as possible. The interface is complex, but the result is worth it.

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The quality of the source file (bitrate) is more important than any equalizer settings. It is useless to improve the sound of compressed MP3 128 kbit / s.

Frequently Asked Questions (FAQ)