Owners of the popular Xiaomi Redmi Note 8 Pro smartphone often wonder about the quality of the audio they play. Despite the fact that the device features one loud lower speaker, many users want a full-fledged stereo for a deeper immersion in games and music. The standard configuration involves mono-sound coming out through the bottom end, while the upper speaker (audible) is used only for phone conversations.
However, the software capabilities of the MIUI shell and third-party applications make a big difference. Activation of stereo sound on this model is possible through both hidden developer settings and with the help of specialized software. In this article, we will discuss in detail all the available methods to make both speakers work simultaneously, turning a monophone track into three-dimensional sound.
Before you start modifying system files or installing applications, it’s important to understand the sound architecture in your device. The Redmi Note 8 Pro is based on the MediaTek Helio G90T processor, which supports multichannel audio output, but the manufacturer has limited this feature to the firmware level, so our challenge is to get around these software limitations with secure methods.
Hardware features of the audio system Redmi Note 8 Pro
The smartphone has one main speaker located on the lower end of the case next to the charging port, which is responsible for playing media content, games and system notifications in standard mode. The top speaker, which is formally spoken, has less power and diameter, making it technically difficult to use for stereo, but possible with software correction.
Xiaomi engineers have been relying on the volume of the main speaker, which is able to produce pure sound without distortion at high frequencies. However, the lack of a second full speaker limits spatial perception. When trying to bring sound to both channels without prior adjustment, the user can hear an imbalance where one channel will be much quieter than the other.
⚠️ Attention: The top speaker is not designed to work at maximum volume in stereo mode. Excessive load can lead to its wheezing or even burnout of the coil, so it is not recommended to set the volume to 100% after activating the stereo.
Understanding these constraints will help you adjust the channel balance correctly. Ideally, the software should lower the volume of the top speaker relative to the bottom speaker, creating the illusion of uniform sound distribution, which is especially important for tracks where the instrumental is distributed unevenly across the panorama.
Activation of stereo through the engineering menu and developer settings
The first step to improving sound is through the hidden capabilities of the Android operating system. There is a developer mode in the MIUI shell that gives you access to advanced audio codec settings. To get there, you need to click on the build number several times in the About Phone section.
Once you activate the developer menu, go to the additional settings section. Here we are interested in the item related to debugging over USB and audio settings. Although there may not be a direct "Enable stereo" button there, activating certain flags can unlock the hidden capabilities of the audio driver.
- 📱 Go to Settings. → About the phone and 7 times click on "Version" MIUI".
- 🔧 Open the Settings. → Advanced settings → For developers.
- 🎚️ Find the Media or Audio section and experiment with the available codec options.
- 🔄 Restart the device to apply changes.
It is worth noting that on different versions of MIUI firmware, the location of these points may differ, and in some cases, activating the absolute volume in the developer menu allows the system to better control the signal level, which indirectly affects the quality of the stereo when using third-party mixers.
☑️ Check before sound modification
Using mixer apps to create pseudostereo
The most effective way to make both speakers work at the same time is to use specialized applications such as Lesser AudioSwitch or Volume Control, which allow you to redirect audio streams and force the upper speaker to act as a second channel.
The way these applications work is to create a virtual mixer that duplicates a mono signal or splits a stereo stream into two channels, spreading them over different physical speakers. Some functions may require root access, but basic settings are also available to ordinary users.
Once the application is installed, you have to give it the permissions it needs, and you have to choose the Speaker + Earpiece or similar output mode in the interface, and the system will start using both speakers, creating a surround sound effect.
| Annex | I need a Root. | Functional | Difficulty |
|---|---|---|---|
| Lesser AudioSwitch | No (basically) | Switching speakers | Low. |
| Volume Control | Yes (full) | Separate channel volume | Medium |
| Sound About | No. | Audio routing | Tall. |
| Equalizer & Bass Booster | No. | Frequency setting | Low. |
It's important to adjust the balance correctly. Because the top speaker is quieter, you can often adjust the volume level for each channel separately in a mixer application.
What to do if the sound wheezes?
Set up equalizer and Dolby Atmos for Redmi Note 8 Pro
To achieve sound quality, it is not enough to simply turn on the second speaker. You need to adjust the frequency response correctly. The built-in equalizer in MIUI is quite simple, so it is recommended to use third-party solutions or system improvements if they are available in your version of firmware.
Dolby Atmos, or its analogues, can be hidden in the system, sometimes requiring the installation of Magisk modules (with root rights) or the use of applications like MIUI Sound Enhancer, which add virtual environments to expand the sound scene.
When you manually adjust the equalizer, the logic is to raise the high frequencies (Treble) to add detail and air, and low frequencies (Bass) moderate to avoid humming the body. The middle frequencies are responsible for vocals and basic instruments, it is better not to touch them unnecessarily.
- 🎚️ Open the sound settings and find the "Sound Effects" section".
- 🎼 Select the Rock or Pop profile as the base, then go to manual settings.
- 📈 Lift sliders in the 4kHz - 16kHz range for brightness.
- 📉 Lower the frequencies around a little. 200-400Hz, if the sound seems "booming".
⚠️ Warning: Avoid creating a "V-shaped" equalizer curve with extreme bass and high rises.This creates the illusion of good sound, but quickly fatigues the hearing and can lead to clipping (digital distortion).
Competent equalizer adjustment allows you to compensate for the physical shortcomings of the speakers, for example, adding a presence in the area of 2-3 kHz will make the voice in the conversational dynamics more clear and legible, which is critical for the stereo effect.
💡
Use test tracks with known sound when setting the equalizer, which will help you hear changes immediately and avoid "overequalization" when the sound becomes unnatural.
Comparison of sound quality: Mono vs. Pseudostereo
After all the manipulations, the user wonders: is the game worth the candle? The table below compares the performance of sound in standard mode and after the software activation of the stereo.
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| Parameter | Standard mode (Mono) | After modification (Stereo) | Difference |
|---|---|---|---|
| Loudness | Tall. | Medium/High | -10% |
| Panorama | Absent. | Expanded | Significant |
| Frequency balance | Displaced in NF/HF | More flat | Notable. |
| Energy consumption |