Where in Xiaomi noise cancellation: a complete guide to setting up on smartphones and headsets

Introduction: Why you need noise reduction in Xiaomi devices

Active noise cancellation (ANC) technology and software-based noise filtering have become an integral part of modern Xiaomi gadgets, allowing you to focus on conversation in a noisy place, improves the sound quality in headphones, and even saves battery power by optimizing the performance of microphones, but where to look for these settings depends on the type of device: smartphone, wireless headphones or headset.

In this article, we’ll look at all possible scenarios, from turning on the ANC in Redmi Buds headphones to fine-tuning the microphone in MIUI for calls, which models support hardware noise cancellation and where only software processing works, and also get practical tips on audio optimization, and pay special attention to hidden features in the engineering menu, which the manufacturer does not advertise, but which can significantly improve the experience of use.

Noise reduction in headphones Xiaomi: models with ANC and where to look for settings

Not all Xiaomi headphones are equipped with active noise cancellation (ANC), a feature only available in premium and flagship models, and below is a list of devices with ANC hardware support, as well as instructions on how to turn on and configure noise cancellation.

• 🎧 Xiaomi Buds 4 Pro – Hybrid ANC 3 microphones to suppress noise up to 48 dB.
• 🎧 Redmi Buds 5 Pro – Adaptive ANC with modes "Transport", "Office", "Home".
• 🎧 Xiaomi FlipBuds Pro – half-in with ANC transparently.
• 🎧 Mi True Wireless Earphones 3 ANC — budget model with basic noise reduction.

To enable ANC in Xiaomi headphones, follow the following steps:

1. Connect the headphones to the smartphone via Bluetooth.
2. Open the Mi Earphones app (or Xiaomi Earbuds for new models).
3. Go to the Noise Reduction or ANC tab.
4. Select the mode: Adaptive, Transport, Office or disable the function.

Is the headphones connected to the phone | Is the Mi Earphones app updated | Is ANC mode enabled in the settings | Is the density of the adhesives checked-->

If your model does not have ANC, but has a transparent mode feature (for example, in Redmi Buds 4), it can be used as an alternative: it allows external sounds to pass, but does not suppress them.

Noise suppression during calls: setting up the microphone in MIUI

Even if your headphones don't support ANC, Xiaomi's MIUI-based smartphones have built-in microphone noise reduction software. It automatically filters background noises during calls, voice recordings or streams. The setting is hidden in the call settings menu and works on all models starting with the Redmi Note 10 and Xiaomi 11.

To enable or adjust noise reduction for the microphone:

1. Open the Phone app.
2. Click on the three dots in the top right corner and select Settings.
3. Go to the section Sound and vibration when calling → Improve sound.
4. Activate the Noise Reduction Switch (or Noise Filtering in older versions of MIUI).

To fine-tune it, you can use an engineering menu, which is suitable for advanced users and requires caution:

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or


##4636## → Phone Information → Network Selection → Network Type → Type of Network → Type #36446337## manually

In the engineering menu, go to Audio → Noise Reduction and experiment with Mic Gain and NS Level. Don't change the other settings without understanding their purpose!

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If after activating noise cancellation, the interlocutor complains about the “robotic” voice, reduce the NS Level to 2-3 (usually 5 by default).

Comparison of Xiaomi models by noise reduction level

Not all Xiaomi devices are equally effective at handling noise, and here is a comparison table of popular smartphone and headphone models by noise reduction and supported features.

Note that smartphones do not measure noise reduction in decibels (dB), because they use software to process the signal, whereas headphones use higher dB, and the more effective they are at suppressing low-frequency noise (such as engine hum in transport).

⚠️ Note: In budget headphone models (e.g. Redmi Buds 3 Lite) function ANC It may be specified in the characteristics, but in practice it is not good to work.

How to Improve Noise Reduction: Practical Advice

Even if your device supports ANC or software filtering, the quality of your work depends on several factors. Here are 5 proven ways to improve noise reduction:

• 🔊 Headphone density: Inlays should sit tight. For Xiaomi Buds 4 Pro use M or L sized earbuds - they are better at isolating sound.
• 📱 Firmware update: B MIUI 14 improved noise reduction algorithm for microphone. Check updates in Settings → The phone.
• 🎛️ Settings uniformity: In the Mi Earphones app, turn off the equalizer - it can conflict with the ANC.
• 🚫 Avoid the wind: Software noise cancellation is bad at dealing with wind gusts. When talking outside, cover the microphone with your hand.
• 🔋 Battery Charging: In Xiaomi headphones ANC If the charge is below 20%, the function can automatically shut down.

For smartphone owners with MIUI 13/14, there is a hidden feature called "Enhanced noise reduction for video calls."

1. Open Settings → Applications → Application Management.
2. Select an app for calling (such as WhatsApp or Zoom).
3. Activate the resolution of the microphone and Change the system settings of the sound.
4. Return to Settings → Sound and Vibration → Sound Improvement and turn on the option for video calls.

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Adaptive noise cancellation in Xiaomi headphones automatically adjusts to the environment, but for this you need to allow access to the microphone and geolocation in the settings of the Mi Earphones application.

Noise reduction problems and their solutions

Sometimes noise cancellation is not working properly, with wheezing, echoes, or no function activated, and then we'll look at the typical problems and how to fix them.

⚠️ Note: If after the update MIUI missing item "Noise suppression" in the microphone settings, reset the settings of the application Phone through Settings → Annexes → Phone. → Warehouse → Reset. It'll bring back the standard parameters.

Problem 1: ANC in headphones is turned on, but does not work.

• Check if the headphones are connected to the original Mi Earphones app (not to a third-party player).
• Update the firmware of headphones through the same application (Update section).
• Reset the headphones to factory settings: press both touch panels for 10 seconds before the red light flashes.

Problem 2: You can hear a noise or a “robotic” voice in the microphone.

• Turn off Noise Reduction in the call settings and check if the problem persists. If so, the microphone is faulty.
• Reduce the Mic Gain level in the engineering menu (see section above).
• Try using headphones with a microphone instead of the one built into your phone.

Problem 3: Noise reduction is shut down.

• In headphones, the Xiaomi ANC can deactivate when the battery is low (less than 15%).
• Check if the headphones overheat - when overheating, the function turns off automatically.
• In the smartphone, turn off the power saving mode for the Phone application.

Noise suppression in smart watches and fitness bracelets Xiaomi

Not only are Xiaomi smartphones and headphones noise-cancelling, some smartwatches and bracelets have voice-filtered noise filtering, for example, the Xiaomi Watch S3 and Redmi Watch 3 Active have a microphone with basic noise-cancellation built in to work with the Xiao AI voice assistant.

To enable this function:

1. On the clock, go to Settings → Voice Assistant.
2. Activate the option of Sound Improvement or Noise Reduction.
3. For best results, speak clearly, holding the watch at a distance of 10-15 cm from the mouth.

In fitness bracelets (such as the Mi Band 8 Pro), noise reduction only works when connected to a smartphone to receive calls. The bracelet does not filter noise on its own, this is the task of the phone.

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If you use Xiaomi smartwatches for calls, turn off the noise cancellation on your smartphone to avoid conflicting sound processing algorithms.

FAQ: Frequent questions about noise reduction in Xiaomi