How to increase the volume of sound on the phone Xiaomi Redmi 8

Xiaomi Redmi 8 has proven to be a reliable budget device, but its multimedia capabilities are often criticized for the lack of volume of the built-in speaker. Users often face a situation where music in a noisy place or voices in the speakerphone are simply not heard, this is especially true for a model with a single bottom speaker, where the physical volume of sound is limited by the design features of the case.

Fortunately, the Android operating system in conjunction with the MIUI shell provides many tools for fine-tuning the audio output. In this article, we will discuss not only standard methods, but also the hidden features of the system that will make the most of your gadget’s acoustic system.

Before we go to radical measures like installing third-party software, we need to rule out software failures and check the basic settings. Often the problem is not the hardware, but the wrong equalizer parameters or activated noise reduction functions that can over-cut frequencies. Let's go through all the optimization steps in a sequential manner.

Basic verification of sound and multimedia settings

The first step should always be to review the standard settings, as many users miss the obvious controls. In the MIUI shell, a separate module is responsible for the sound profile, which is often ignored when you first set up the phone. Go to the settings menu and find the Sound and Vibration section where the main adjustment sliders are concentrated.

Note that the volume levels for different types of events (calls, media, alarm clock) are independently controlled. Make sure you don't confuse the Media slider with the Notification Sound slider. The first parameter that needs to be twisted to the maximum is critical to watching videos and listening to music.

• 🔊 Open the Settings. → Sound and vibration and check all sliders.
• 🎚️ Activate Adaptive Brightness (if available in your version) MIUI), So that the system itself adjusts the level to the surrounding noise.
• 🔇 Make sure no No Sound or Do Not Disturb mode is enabled, which can block audio output.

An important element is the built-in equalizer. It's either in the Sound Quality and Effects menu or called through the Music app. Standard presets often understate the average frequencies where the main spectrum of human speech is located. Try selecting Clear mode or manually lifting sliders in the center of the range.

⚠️ Warning: When manually adjusting the equalizer, don’t lift all sliders to the top position, which will cause digital distortion (wheezing) and can overload the speaker, especially on budget models like the Redmi 8.

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Use headphones to check the sound quality, if the headphones sound clear and loud, and through the speaker quiet — the problem is the speaker or its connector, not the software.

Using the Engineering Menu to Enhance the Dynamics

One of the most effective, but careful ways is to access the engineering menu, which is a hidden part of the system that's designed to test equipment by engineers in the factory, where you can directly control (amplify) the audio track, and to enter the menu on Xiaomi, you need to enter a special code in the Phone application.

Dial the combination ##3646633##. If the code didn’t work, your firmware version may block direct access and you will need to install a special activator application from the Play Market Store. Once in the menu, go to the Hardware Testing tab, then select Audio and Audio Debug.

Inside the section, you'll see a table with different modes of operation (Normal, Headset, Handsfree). We're interested in Normal (for the main speaker) or Handsfree (for hands-free communication); Choose Media (for music and video) or Speech (for conversations); at the bottom of the screen, look for Level and the corresponding Max Vol.

Change the Max Vol values gradually. The standard value is often underestimated to protect the speaker. Increasing this parameter directly affects the maximum volume. After changing the value, be sure to press the Set button to save the settings. Rebooting the device after manipulation is mandatory for applying the changes.

Customization of equalizer and audio effects MIUI

MIUI has its own set of audio filters that can significantly improve sound perception without third-party software. Unlike a simple equalizer, post-processing algorithms like a virtualizer and bass amplifier are available here, and you can find them through audio settings or in the Mi Music app.

Turn on the option “Mi Sound Enhancer.” This feature automatically analyzes the content being played and selects the optimal profile. For the Redmi 8 with its single speaker, the most useful will be the “Clear” or “Balance” mode, as they raise the medium and high frequencies, making the sound more legible.

Special attention should be paid to the Virtualizer setting, which creates a surround effect that can subjectively increase the perceived volume by expanding the sound scene, but at maximum volume, this feature sometimes causes the sound to float, so it is better to use it at 70-80% volume.

• 🎧 Turn on Mi Sound Enhancer in the sound settings.
• 🎛️ Select the Clear profile or set up the equalizer manually by raising the frequencies of 1kHz - 4kHz.
• 🌊 Activate the Virtualizer on 50-70% volume-effect.

If you use third-party players, make sure that their settings also disable their own noise reduction or volume limiting, which may conflict with the system settings of Xiaomi. Synchronizing the settings of the system and application equalizers is the key to high-quality sound.

⚠️ Warning: Enabling all effects at once (equalizer, virtualizer, bass amplifier) can cause noticeable latency when watching videos or games. If you notice audio and video desynchronization, turn off the virtualizer.

Third-party applications to increase volume

When built-in tools are not enough, Google Play apps designed specifically to amplify the audio signal come to the rescue, and they work on the principle of software compression and additional amplification of the digital stream before sending it to the DAC (digital-analog converter) of the smartphone.

One of the most popular and proven solutions is the Volume Booster GOODEV app, which is minimalist and has no advertising, and it works very simply: you set a gain percentage (Boost). Redmi 8 is considered a safe limit of 20-30%. Exceeding this threshold leads to a strong distortion of the sound.

Another powerful tool is Equalizer FX or Bass Booster, which not only amplifies the overall signal, but also fine-tunes the frequency bands, and often has more advanced algorithms to prevent clipping than simple boosters.

When using these programs, it is important to understand that they put additional load on the processor and can consume battery power faster, and they can conflict with each other, and it is recommended to install one main application and customize it to your needs, removing the other analogues.

• 📲 Download Volume Booster from GOODEV high-rated.
• ⚙️ Set the gain (Boost) not above 30% to avoid wheezing.
• 🔋 Watch the heating of the device during prolonged use of the amplifier.

Physical cleaning and maintenance dynamics

Often the reason for the quiet sound is trivial — the speaker is clogged with dust, pocket pile or earwax (for conversational speakers). In the Redmi 8, the main speaker is located at the bottom and has a straight perforation, making it vulnerable to contamination. Even a thin layer of dust can reduce the volume by 30-40%.

To clean, use a soft toothbrush with dry bristles. Carefully, without much pressure, walk along the speaker grid in circular motions. This will help to knock out the stuck dust. You can also use sticky tape (scotch), applying it with a sticky side to the holes to pull out the villi.

There is a method of "sonic cleaning" using special tracks that generate low-frequency vibrations, such videos can be found on YouTube for "speaker cleaner." Vibration of the speaker membrane at low frequencies helps push dust out of the depths of the case.

It is strictly forbidden to use sharp objects (needles, toothpicks) to pick through the speaker grid. You can damage the membrane itself or push the dirt deeper, which will lead to irreversible deterioration of the sound quality or complete failure of the speaker.

⚠️ Warning: Do not use liquids (alcohol, water) to clean the speaker unless you are sure of the tightness of the case. Moisture entering the interior will lead to oxidation of the contacts and short circuit. Use only dry methods.

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Regular preventive cleaning of speakers with a dry brush every 2-3 months allows you to maintain the initial volume of the device throughout the entire service life.

Alternative solutions and Bluetooth acoustics

If software and physical methods don't work, then there are alternative ways to look at it: the physical limitations of one small speaker in a budget smartphone are software-free, and in those cases, external devices come to the rescue.

Using a portable Bluetooth speaker is the most obvious solution. Modern compact speakers are inexpensive, but they give a tenfold increase in volume and quality compared to a smartphone. Redmi 8 supports current Bluetooth codecs, which ensures good audio transfer.

You can also use wired earphones with built-in amplifier (DAC/AMP), which connect via a USB Type-C connector or 3.5 mm (via an adapter), such devices take over the audio processing, completely bypassing the limitations of the phone's built-in audio track.

Another life hack is the use of resonance surfaces, and if you put your phone down on a wooden table with your speaker, or if you put it in an empty glass cup, the sound will be much louder and larger because of the resonance of the surface, which is an old but powerful physical amplification method.

• 🔊 Connect an external Bluetooth column for parties or watching movies.
• 🎧 Use headphones with your own DAC for maximum quality.
• 🍽️ Use surface resonance (glass, table) for temporary amplification.

In conclusion, the integrated approach gives the best result: the combination of a clean speaker system, a properly configured equalizer and moderate use of software boosters will allow you to enjoy the content on the Xiaomi Redmi 8 with maximum comfort.