Owners of Xiaomi, Redmi and POCO smartphones often face situations where audio playback quality is not up to expectations, which may be due to software limitations or inactive settings that are hidden deep inside the system. Many users do not even suspect that their device supports advanced audio formats, but they are simply turned off by default.
To get a really big and rich sound, you need to adjust the system settings correctly. In this article, we will discuss all the available ways to activate and improve stereophony on devices of this brand, you will learn how to control the equalizer, connect external codecs and eliminate common problems with channel balance.
Before you start to do complex manipulations, it's worth checking the basic parameters, because often the problem lies in simple things. For example, in some cases, Mono mode can be accidentally activated in the special features section, which completely removes the separation of channels, making the sound flat and unnatural.
Basic setup of sound channels
The first step to ensure a quality stereo is to check system availability settings. In the MIUI or HyperOS shell, this setting can switch automatically or be turned on by the user earlier. If the sound is the same from both speakers without separating the left and right channel, this is a clear sign of activated mono mode.
To fix this, you need to go to the settings section for advanced features for people with disabilities, and there's a switch that forcibly brings the stereo into one channel, and turning it off will bring back normal sound separation.
- 🔍 Open “Settings” and find the “Advanced Settings” section».
- 🔍 Go to the menu “Special Opportunities” (or “Special Opportunities»).
- 🔍 Select the “Hearing” or “Hearing and Vision” tab».
- 🔍 Find the "Monoaudio" item and make sure the switch is off.
And when you do that, the sound needs to be more volumetric, and if you use headphones, you'll notice the effect when you listen to good mastering tracks, and for built-in speakers, that's also critical, because they're physically located on opposite sides of the body.
Activation of Dolby Atmos and Sound Effects
Modern smartphones Xiaomi mid- and flagship segment equipped with software support for Dolby Atmos technology. This algorithm allows you to create a virtual three-dimensional sound space, significantly improving the perception of the stereo effect. Without activation of this feature, sound can appear dry and devoid of depth.
To turn on the technology, go to the sound and effects settings, and here you'll find not only the Dolby switch, but also different sound scripts, and the system offers presets for music, movies and games, each of which distributes frequencies differently between channels.
⚠️ Warning: Activation of Dolby Atmos may slightly increase battery consumption during prolonged media playback.
A graphical equalizer is also available on this menu, and for maximum stereo effect, it is recommended to choose a clear or balanced profile. User settings allow you to manually raise high frequencies, which will add air to the sound and clarity of the separation of instruments.
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Use the Mode "Cinema" in the settings of Dolby Atmos when watching the video - it maximizes the stereo and adds volume to the dialogue.
Setting up Bluetooth codecs for wireless sound
When using a wireless headset, stereo quality is directly dependent on the selected data codec. The standard SBC codec often compresses the audio stream, cutting high frequencies and narrowing the stereo panorama. To get Hi-Res quality, you need to activate more advanced algorithms if your headphones support them.
To access the hidden developer menu for Bluetooth, you need to click on the build number several times in the About Phone section. Once you unlock the developer menu, you will have access to a selection of codecs, which allows you to force the connection to aptX HD, LDAC or aptX Adaptive.
- 🎧 LDAC: Provides the highest quality transmission (up to 990 kbps), ideal for Lossless music.
- 🎧 aptX HD: stable codec with support for 24-bit sound, good for Android devices.
- 🎧 aptX Adaptive: dynamically changes bitrate depending on interference, maintaining a balance of quality and stability.
- 🎧 AAC: standard for Apple devices, provides good quality with moderate bitrate.
It is worth noting that choosing a codec in the menu does not guarantee its operation if the headphones do not support this standard, in which case the system will automatically roll back to the previous available option. You can check the active codec in the same menu or through special Bluetooth analyzer applications.
What if the codec is not on the list?
Use of third-party applications and equalizers
The system's regular tools are sometimes not enough to fine-tune the audio stream. Third-party applications allow you to infiltrate an Android audio track and apply complex sound processing algorithms. One of the most powerful tools is Poweramp Equalizer or Bonk.
These programs not only allow you to adjust the frequencies, but also control the width of the stereobase. Stereo Expander artificially dilutes the channels, creating the illusion of a wider sound scene, which is especially useful when listening to old recordings or tracks with a narrow mix.
However, be careful with amplification of bass and high frequencies. Excessive digital processing can lead to wheezing and distortion, especially at the maximum volume of the built-in speakers. 2-3 dB.
Comparison of sound modes in different shells
The interface of the audio settings may vary depending on the version of MIUI or HyperOS. In newer versions of firmware, some functions have been renamed or moved, and understanding the differences will help you find the right switches faster.
| Function | Location in MIUI 12-13 | Location in HyperOS/MIUI 14 | Impact on stereo |
|---|---|---|---|
| Dolby Atmos | Sound and vibration → Sound effects | Sound and vibration → Sound effects | High (3D volume) |
| Monoaudio | Advanced settings → Special. capabilities | Settings → Special. opportunities → Hearing | Critical (turns on/off stereo) |
| Smart speaker | Settings → Sound and vibration | Settings → Sound and vibration | Medium (volume adaptation) |
| Mi Sound | Sound and vibration → Mi Sound | Sound and vibration → Mi Sound | Medium (calibration for headphones) |
As you can see from the table, the logic of the menu remains similar, but the names can vary. In new OS versions, the company aims to simplify navigation by combining all the audio settings in one place. If you can't find a feature, search by settings by entering the keyword "sound" or "Dolby".
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Searching by settings is the quickest way to find a hidden feature if you can’t find it manually in the menu.
Diagnostics and troubleshooting sound problems
Sometimes the software settings are fine, but the stereo still doesn't work properly, and it could indicate a hardware problem or a software conflict, and if the sound comes from just one speaker or the balances are constantly being lost, a deeper diagnosis is required.
First, eliminate software failure. Rebooting the device often resolves temporary conflicts of audio drivers. If this does not help, check the balance in the engineering menu or through test applications. It is also worth clearing the cache of the Settings or Sound application if this option is available in your version of the OS.
⚠️ Note: If one of the speakers wheezes or cracks at low volume, the software settings will not help - you need to replace the dynamic head in the service center.
To test the performance of channels, you can use online stereo tests. Turn on video where the sound is sequentially from left to right. If at some point the sound is lost or distorted on only one side, the problem is hardware.