How to enable Xiaomi audio optimization: a complete guide for smartphones and TV

Have you ever noticed that the sound on your Xiaomi seems too quiet, distorted or uneven? Perhaps you just didn't activate the built-in audio optimization feature that automatically adjusts the audio to your device's acoustics, content type, and even your individual preferences. This technology is not just a marketing ploy: it really improves the perception of music, video and voice calls, especially on budget models with limited speakers.

The problem is that on different Xiaomi devices – whether it’s a Redmi Note 12 smartphone, Xiaomi 14 flagship or Mi TV. TV Q2 — The path to enabling audio optimization can be very different. MIUI, In this article we will analyze all possible scenarios: from basic activation to advanced settings for audiophiles, including hidden developer parameters, which Xiaomi does not advertise in the official documentation.

What is Xiaomi Sound Optimization and Why You Need It

Sound optimization is a set of algorithms that analyze and correct audio signals in real time, and on Xiaomi devices it works on several levels:

• 🔊 Adaptive equalization: automatically adjusts the frequency balance to the genre of music (for example, amplifies bass for hip-hop or raises high frequencies for classics).
• 🎧 Acoustics compensation: takes into account the characteristics of the speakers of a particular model (for example, on the basis of the POCO X5 corrects the "drum" at maximum volume).
• 📱 Use cases: distinguishes listening to music from voice calling or watching a movie by applying different profiles.
• 🔋 Energy saving: reduces the load on the processor during playback, saving battery power.

Without optimization, sound can seem flat, especially on cheap single speaker models. A2 Without activating this feature, bass is barely audible and voices in podcasts sound deaf. Turning on optimization often solves these problems without buying external speakers.

So it's important to understand that audio optimization is not a magic wand, it's not going to turn a 500-dollar speaker into a Bose system, but it's going to be able to make the most of the hardware. TV A2 It compensates for the lack of low frequencies due to the algorithm Virtual Bass, and Xiaomi 13T Adds volume through Dolby Atmos technology (if supported).

How to enable sound optimization on Xiaomi smartphones (MIUI 12–14)

Most smartphones Xiaomi, Redmi and POCO firmware MIUI 12 and later, audio optimization is enabled through the standard settings menu, but the path to it may differ depending on the shell version and regional firmware:

1. Open the Settings app (cog icon).
2. Go to the section Sound and vibration.
3. Slip on the item Sound quality or Sound effects (on some models – Sound settings).
4. Activate the switch Sound Optimization or Adaptive Sound.
5. Select the profile: Music, Film or Voice (if available).

On some devices (such as Xiaomi 12 Pro), after activation, an additional menu with sliders will appear to manually adjust the equalization. If there is no such menu, then your model supports only automatic optimization.

Check the version of MIUI (Settings → About the phone)

Connect headphones (for testing)

Set the volume to 70-80%

Close background applications (especially messengers)

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Features for different models:

• 📱 Redmi Note 11/12: Sound optimization is hidden in Settings → Additionally. → Sound lab.
• 🎵 POCO F4/F5: Additional Super Bass settings for headphones are available.
• 🔈 Xiaomi 13/14: Dolby Atmos – You need to include it separately in the same menu.

Optimizing the sound on Xiaomi TVs (Mi) TV, Redmi TV)

On Xiaomi TVs, audio optimization works differently than on smartphones. Here it is closely related to technology. DTS-HD And then you can set up acoustics to the size of the room:

1. On the remote, press Menu (or Settings on new models).
2. Select Settings → Sound.
3. Go to Sound Modes or Audio Effects.
4. Activate the sound optimization or DTS Virtual:X (on models with support).
5. Select Mode: Movie, Music or News.

On Mi TVs. TV Q2 75" and later, Adaptive Volume is also available, which automatically adjusts the sound level depending on the background in the room.

⚠️ Attention: On Xiaomi TVs with Android TV 11 and later, audio optimization may conflict with external sound panels connected over the HDMI ARC. If the sound is lost after activation, check the settings. HDMI-CEC Settings menu → Connections → HDMI.

Hidden Sound Settings: How to Access Extended Options

Xiaomi hides some of the audio settings to avoid confusing users, but you can activate them through a developer menu or special codes.

Method 1: Developer menu (for smartphones)

1. Activate Developer Mode: Go to Settings → About Phone and tap the MIUI version 7 times.
2. Return to the main settings menu, open Additional → for developers.
3. Find the Audio section and turn on: High-quality audio output (for headphones) Real-time effects processing Advanced equalization

Method 2: Engineering menu codes (for TVs)

On Xiaomi TVs, you can open a hidden audio menu by typing on the remote:

Press sequentially Menu → 1 → 3 → 9 → Menu

In the menu that opens, the following parameters will be available:

• 🔧 Bass Boost Level (Bass gain level, 0 to 15)
• 🎛️ Treble Gain (High Frequency Correction)
• 🔇 Loudness Compensation (Loudness Compensation)

⚠️ Attention: Changing the parameters in the engineering menu can cause sound distortion or resetting. Write down the initial values before editing! For example, the standard Bass Boost Level on most models is 5.

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If after changes in the engineering menu the sound became worse - reset the sound settings to the factory through Settings → System system → Resetting settings → Reset the sound settings.

Optimizing sound for headphones and Bluetooth devices

On Xiaomi devices, audio optimization works differently for wired and wireless headphones. Here are the key differences:

For Xiaomi wireless headphones (such as Redmi Buds 4 Pro or Xiaomi FlipBuds Pro), audio optimization is customized through the Mi Earphones branded app.

• 🎶 Presets of equalization (Pop, Rock, Jazz, etc.)
• 🔇 Adaptive noise cancellation (ANC)
• 🔄 Low Delay Mode (for Games)

On smartphones with MIUI 14 There was also a function. LDAC/LHDC It's for Bluetooth audio, it's for activation:

1. Put your headphones on Bluetooth.
2. Open Settings → Connections → Bluetooth.
3. Slip the gear icon next to the connected device.
4. Choose Sound Quality → LHDC (or LDAC Sony).

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For a stable job. LHDC headphones must support this codec, and the distance to the smartphone should not exceed 3 meters. otherwise the sound will be interrupted.

Problems with sound optimization and their solutions

Sometimes when you turn on the sound optimization, you get a problem, and here are the most common ways to fix it:

1.The sound became quieter or there were distortions

Reason: Incorrectly selected optimization profile or conflict with other audio effects.

Decision:

• Reset the sound settings to factory.
• Turn off all third-party equalizers (e.g. Poweramp) EQ).
• Check if Safe Sound is activated in Settings → Special opportunities.

2. Sound optimization is not saved after restarting

Cause: Failure of the service media.audio_flinger (It often happens after updates).

Decision:

• Clear the Settings app cache (Settings → Applications → Application Management → Settings → Clear the cache).
• Execute the command through ADB: adb shell pm clear com.android.settings

3.There is no optimization effect on the TV

Reason: External sound output is enabled (HDMI ARC, optic).

Decision:

• Go to Settings. → Sound. → Output sound and select Integrated speakers.
• Turn it off. HDMI-CEC Settings menu → Connections.

⚠️ Note: If after updating the firmware lost the sound settings - this may be due to the transition to a new version MIUI, where the menu structure has changed. Try resetting the audio settings through the Settings. → System system → Resetting settings → Reset the sound settings.

Additional ways to improve the sound on Xiaomi

Sound optimization isn't the only way to improve audio, but here are some other effective methods:

• 🎵 Third-party equalizers: Apps like Wavelet or ViPER4Android (requires root) offer more flexible settings than the standard equalizer MIUI.
• 🔊 Dolby Atmos: Supported models (Xiaomi) 12/13/14) activated in Settings → Sound. → Dolby Atmos. Select a profile Music or Movie.
• 📱 High Performance Mode: Includes maximum bitrate audio processing. Activated in Settings → Battery → Performance mode.
• 🔋 Power Saving Disconnect for Audio Apps: Go to Settings → Battery → Select apps and disable optimization for players (such as Spotify or YouTube Music).

For Xiaomi TVs, it is also useful:

• 📺 Connect the sound panel through HDMI ARC and enable Pass-Through in the sound settings.
• 🔧 Update the speaker firmware (if Xiaomi external acoustics are used).
• 🎬 Enable Mode of the cinema in Settings → Picture → Image modes (affects sound as well).

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If you use Xiaomi as a media center (for example, with Kodi), in the player settings, enable the Passthrough option for multichannel sound (DTS, AC3).

FAQ: Frequent questions about Xiaomi sound optimization