How to turn on stereo sound on Xiaomi Redmi Note 8T

Owners of the Xiaomi Redmi Note 8T smartphone often wonder about the expansion of the audio system of their device. This device, released in late 2019, is equipped with a powerful Qualcomm Snapdragon 665 processor and a quality DAC, but by default the system may not use the full potential of the speakers. Stereo sound on this device is provided by a combination of the main speaker and multimedia located in the lower end of the case.

Many users mistakenly believe that to get real surround sound, you need to purchase external acoustics. In fact, the software settings of the MIUI shell allow you to significantly improve the quality of playback. It is important to understand that the hardware of the Redmi Note 8T initially supports stereo mode, but its work can be limited by software filters or incorrect equalizer settings.

In this article, we will discuss in detail all available methods of activating and tuning stereo. You will learn how to use hidden functions of the system, correctly adjust frequencies for different genres of music and what to do if sound is played from only one speaker. A key feature of the Redmi Note 8T is the presence of a dedicated ESS DAC that processes sound independently of the main processor, ensuring the purity of the signal.

Hardware features of the Redmi Note 8T audio system

Before you get to software settings, you need to clearly understand the physical design of your smartphone’s sound subsystem. Unlike monophone models in the budget segment, the Redmi Note 8T features two independent audio output channels. The main channel is located at the bottom of the device and is responsible for low and medium frequencies, providing a rich bass.

The second channel, which is often overlooked, is integrated into the top speaker, which plays high frequencies, creating the necessary effect of channel separation. It is the coordinated work of these two elements that creates the illusion of surround sound. If one of the speakers is not working correctly or is silenced software, the stereo effect is completely lost, and the user hears a flat mono.

The quality of playback also depends on the presence of the ESS Sabre ES9211E audio chip. This component is responsible for decoding the digital signal into analog with minimal distortion. In standard mode, the system itself distributes the load between the speakers, but sometimes after firmware updates or installing third-party applications, priorities can be lost.

It's worth noting that the physical location of the speakers imposes certain limitations, the bottom speaker is down, and the top speaker is forward and up, so when watching video in a horizontal position, it's important not to overlap the bottom edge of the body with your fingers, otherwise the sound balance will shift to one side.

⚠️ Warning: When trying to "accelerate" the dynamics through third-party amplifiers, be careful. Exceeding the permissible amplitude of the oscillations of the membrane can lead to mechanical damage and wheezing, which cannot be eliminated by software.

Understanding these physical limitations will help you set up your device properly. Don't expect portable speaker-level basses from a thin smartphone body, but achieving a clean and split stereo is a real possibility.

Basic activation of stereo in MIUI settings

The first step in adjusting the sound is to check the standard system parameters. The MIUI shell provides the basic tools for controlling the audio output. By default, the stereo mode is active, but its operation may be disrupted by failures in the sound profile. First, you need to make sure that the system does not include the mono mode, which is often activated for accessibility for people with hearing impairments.

Go to the settings menu, look for the section "Sound and vibration" and you're interested in "Sound quality and effects" or "Sound effects" (name depends on the version of MIUI), inside this menu is a stereo switch that should be active, and if you see the "Mono-audio" option, it should be turned off.

Also in this section, there's a "Mi Sound Enhancer" setting, which is an artificial intelligence algorithm that tries to tailor the sound to the type of content being played, but many audiophiles recommend turning it off to get a more honest sound, as the algorithm can strangle the stereo panorama in an attempt to level the volume.

After making changes, be sure to restart the device. Restart is necessary for the Android audio driver to reread the configuration files and apply the new parameters to the hardware. Without rebooting, the changes can only remain in the interface without affecting the actual audio output.

If the sound is monophonic after all the manipulations, the problem may be in a particular application. Check the sound settings in the player or video player you use. Some applications have their own priorities and can override system settings.

Using Dolby Atmos to expand the sound scene

One of the most powerful features available on the Redmi Note 8T is Dolby Atmos. It's not just an equalizer, it's a complex object-oriented sound system that creates virtual three-dimensional space. Even if the sound source isn't encoded in Dolby format, the smartphone's processor can emulate the surround sound effect.

To activate this feature, go to Settings → Sound and Vibration → Sound Effects. Here you will find the Dolby Atmos switch. When you turn it on, the system will prompt you to select a profile: Auto, Video, Music or Voice. For maximum stereo effect in games and movies, Video or Auto mode is best suited.

In Music mode, the algorithm focuses on expanding the stereo, making the sound wider and airier, but be prepared for the fact that the volume may decrease slightly, as part of the signal's energy is spent processing and creating virtual channels, which is normal behavior of the noise reduction system and spatial processing.

If you play heavy 3D-play and notice the fall FPS, Try switching to off or auto mode to see if the performance changes, and in most cases, the impact is minimal, but on older versions of firmware it can be noticeable.