How to enable and configure sound optimization on Xiaomi Redmi Note 10S: detailed instructions

The Xiaomi Redmi Note 10S is a popular smartphone with a powerful audio system, but not everyone knows how to unleash its potential. Even with two speakers and support for Hi-Res Audio, the default sound can seem muted or unbalanced. The problem is not the hardware, but the factory settings of MIUI, which often limit the volume and frequency range for security.

In this article, you will learn how to enable hidden audio optimization functions, customize your equalizer to your preferences, and even improve audio quality through third-party tools. We will examine official methods (through Settings → Sound) and advanced tricks for power users. And also explain why after the MIUI update, sound can “reset” and how to fix it.

Important: All instructions are checked on the Redmi Note 10S with MIUI 14 (Android 12/13). If you have a different firmware, some menu items may differ - but the general logic remains the same.

What is “Sound Optimization” and Why You Need It

Xiaomi’s audio optimization is a set of features that improve audio playback by:

• 🔊 Volume amplification without distortion (via compression algorithms).
• 🎛️ Frequency corrections (equalizer for bass, medium and high frequencies).
• 🎧 Adaptations to headphones (including support) LDAC aptX).
• 🔄 Normalize volume between tracks (so as not to manually adjust the level).

By default, MIUI limits the maximum volume to 70-80% of the actual speaker capacity, which is designed to protect against damage and comply with European regulations (e.g. EN 50332 for safe listening), but if you are willing to take the risk (and save your hearing!), these restrictions can be bypassed.

Another nuance: optimization works differently for built-in speakers and headphones, for example, when connecting Bluetooth devices, additional codecs (for example, AAC or aptX HD) are enabled, which affect the sound quality more than the equalizer settings.

Official audio settings in MIUI: where to look and what to change

Let's start with the basic tools that the firmware itself offers, all of which are in the Settings menu → Sound and vibration. Let's take a look at the key points:

1. Equalizer (Sound → Equalizer): Here you can choose one of the preset profiles (Rock, Pop, Jazz, etc.) or create your own. Tip: for bass, increase the sliders to 60 Hz and 230 Hz, but do not overdo it - this can lead to wheezing at high volume.
2. Sound amplification (Sound → Sound amplification): Turns on the Dolby Atmos algorithm (if supported) or standard amplification. On the Redmi Note 10S Dolby works only with headphones!
3. Volume normalization (Sound → Volume normalization): Aligns the sound level between tracks. Useful for playlists with different masterings, but can "cut" the volume peaks.

Important: after the MIUI update, all equalizer settings are reset! This is a well-known bug that Xiaomi has not fixed for several years. To avoid problems, save a screenshot of your settings or use third-party apps (about them below).

Hidden Features: How to Enable Advanced Sound Optimization

MIUI It hides some of the audio settings to protect users from doing things that are wrong, but it can be activated through the codes of the engineering menu or ADB-Let's look at both.

Method 1: Engineering Menu (MTK)

The Redmi Note 10S is built on the MediaTek Helio G95 chip, so use this method to access hidden audio settings:

1. Open the Phone app and enter the code: ##36446337##
2. Go to the Hardware Testing → Audio section.
3. Here you will see the parameters: 🔈 Max Vol - maximum volume (up to 150 percent, but risk of distortion!). 🎵 Speaker Gain – amplification for speakers. 🎧 Headset Gain - reinforcement for headphones.

⚠️ Warning: Changing the values in the engineering menu can damage the speakers or overheat the chip.Do not turn up the volume above 120% and test the sound gradually.

Method 2: ADB-Teams (for experienced teams)

If the engineering menu is not available or does not provide the necessary options, use ADB:

1. Connect your phone to your PC, turn on USB Debugging (Settings → About Phone → MIUI Version → 7 times tap).
2. Enter in command line: adb shell settings put global audio_effects_enabled 1 This activates hidden audio effects.
3. To increase volume above limit: adb shell settings put global volume_boost 1

💡

Before use ADB Backup your audio settings with the adb backup command -f audio_settings.ab -apk com.android.settings. This will help restore the settings if something goes wrong.

Optimization methods: what is better for the Redmi Note 10S

To choose the best way, compare the key parameters:

💡

For most users, the best balance is a combination of Dolby Atmos + MIUI equalizer + a third-party app (like Wavelet), which improves sound without risk to the hardware.

The Best Third-Party Apps for Sound Optimization

If standard MIUI tools aren’t enough, try these apps. They’re all compatible with the Redmi Note 10S and don’t require root rights (except for ViPER4Android):

• 🎧 Wavelet (free, Google Play): Uses an auto equalizer based on your headphone profile (supports more than 2,000 models.
• 🔊 Poweramp Equalizer (paid, Google Play): 10-band equalizer with presets for different genres. Works systemically (affects all applications).
• 🛠️ ViPER4Android (Free, requires Magisk: The most powerful tool with support for Convolver, Dynamic System and other advanced effects!
• 🎵 Neutron Music Player (Google Play): 32/64-Bit audio player with support for Hi-Res Audio and its own DSP-engine.

For ViPER4Android, you will need:

1. Install Magisk (instructions for Redmi Note 10S here)
2. Download the latest version of ViPER from the official website (avoid pirated builds!).
3. Install the ViPER4Android FX driver via the Magisk module.

⚠️ Attention: after installation ViPER4Android Turn off all other equalizers (including system) or the sound will get distorted. Start with a Flat profile and gradually adjust the effects.

Frequent Sound Issues on the Redmi Note 10S and How to Fix Them

Even after optimization, users are faced with typical bugs, and here are the most common ones:

• 🔇 The sound disappears after the update MIUI: Reset the sound settings in Settings → Annexes → Application management → Sound. → Warehouse → Clear the data. Reboot the phone.
• 🎧 Headphones only work in one ear: Check the connector for contamination (clean with a toothpick) or update the audio driver HAL Fastboot: Fastboot Flash vendor vendor.img
• 🔊 Speakers wheez at maximum volume: Reduce Speaker Gain in the engineering menu to 100% or turn off the sound amplification in the MIUI. If the wheezing is left, the speakers are physically damaged.
• 📶 Sound in games lags: Enable Performance Mode (Settings) → Special opportunities → Performance mode) and disable Dolby Atmos for gaming.

How to save your audio settings after the MIUI update

Updates to MIUI Famous for resetting user audio settings. To avoid this:

1. Export Equalizer Profile: Use the AudioFX Backup app (available on 4PDA) to save settings to the.aex file.
2. Turn off automatic update: Go to Settings → The phone. → Updating the system → ⋮ → Settings → Deactivate "Downloading".
3. Use Tasker to Recover: Create a Task That Applies Once Rebooted ADB-Adb shell settings put global settings audio_effects_enabled 1 adb shell am broadcast -a android.media.action.SET_AUDIO_EFFECT --es effect "equalizer"

If the update has already been installed and reset the settings, try:

• 🔄 Reboot your phone in Safe Mode (click the power button) → "Restart Safe Mode), then return to normal mode.
• 📱 Delete the cache of the com.android.settings application via ADB: adb shell pm clear com.android.settings

FAQ: Answers to popular questions