Cách xử lý khi chức năng chống tiếng ồn trên AirPods không hoạt động

When your AirPods noise cancellation stops working properly, it can be frustrating, especially when you’re in a noisy environment. Many AirPods Pro users experience this issue at some point, with common symptoms including reduced bass sound and increased background noise. The most effective solutions include cleaning your AirPods to remove debris, checking for software updates, resetting your AirPods, and ensuring they fit properly in your ears.

Several factors can affect Active Noise Cancellation (ANC) performance. Earwax buildup and debris are common culprits that block the microphones needed for noise cancellation. Sometimes the issue might be with your device rather than the AirPods themselves. Connecting your AirPods to another device can help determine if the problem lies with your iPhone or the earbuds.

For first-generation AirPods Pro users experiencing persistent noise cancellation problems, Apple offers a service program specifically for sound issues. Before seeking replacement, though, try basic troubleshooting like adjusting accessibility settings on your iOS device, which can sometimes restore proper ANC functionality.

Troubleshooting AirPods Noise Cancelling Issues

If the noise cancellation on your AirPods isn’t working as expected, there are several steps you can take to diagnose and fix the issue. Whether it’s due to software settings, hardware problems, or improper fit, the following guide will walk you through the best solutions.

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1. Ensure Active Noise Cancellation is Enabled

Before assuming there’s a problem, double-check that Active Noise Cancellation (ANC) is turned on:

1. For AirPods Pro (1st & 2nd Gen) and AirPods Max:
   • Wear your AirPods and connect them to your device.
   • Open Settings on your iPhone or iPad.
   • Navigate to Bluetooth and tap the (i) next to your AirPods.
   • Ensure that Noise Cancellation is selected.
2. Using Control Center:
   • Open Control Center (swipe down from the top-right corner on newer iPhones).
   • Press and hold the volume slider.
   • Make sure Noise Cancellation is turned on.

If the setting is correct, but the noise cancellation still doesn’t seem to be working, move on to the next steps.

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2. Check the Fit of Your AirPods

A poor fit can drastically reduce the effectiveness of noise cancellation.

• For AirPods Pro:
  • Open Settings > Bluetooth and tap (i) next to your AirPods.
  • Select Ear Tip Fit Test and follow the on-screen instructions.
  • If the test suggests a poor fit, try swapping to a different-sized ear tip.
• For AirPods Max:
  • Ensure the ear cushions are properly attached and forming a full seal around your ears.

If outside noise is still leaking in, try adjusting the way you wear your AirPods. A snug, sealed fit is essential for ANC to work effectively.

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3. Clean Your AirPods

Dirt, debris, and earwax buildup can block microphones and speakers, reducing noise cancellation effectiveness.

How to Clean AirPods Pro:

• Use a dry microfiber cloth to wipe down the ear tips and body.
• Remove the silicone ear tips and rinse them under warm water (do not use soap).
• Use a soft-bristled brush or a dry cotton swab to clean around the speaker mesh.

How to Clean AirPods Max:

• Check the ear cushions for dirt or dust and wipe them with a lint-free cloth.
• Inspect the mesh near the drivers and gently clean it if necessary.

Avoid using compressed air or sharp objects, as these can damage internal components.

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4. Restart and Reset Your AirPods

Sometimes, a simple restart or reset can restore normal noise cancellation functionality.

Restart Your AirPods:

• Put your AirPods in their charging case.
• Close the lid and wait for at least 30 seconds before using them again.

Reset Your AirPods:

1. Put your AirPods in their case and close the lid.
2. Open the lid and press and hold the setup button (on the back of the case) until the status light flashes amber, then white.
3. Reconnect your AirPods to your device.

For AirPods Max, press and hold the Noise Control button + Digital Crown until the LED flashes amber, then white.

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5. Update Your AirPods Firmware

Outdated firmware can cause performance issues, including problems with ANC.

To check your firmware version:

1. Open Settings > Bluetooth and tap (i) next to your AirPods.
2. Scroll down to Version and note the number.

Apple automatically updates AirPods firmware when they’re charging and near your iPhone. If yours are outdated, try these steps:

1. Place your AirPods in their case and keep them near your iPhone.
2. Make sure your iPhone is connected to Wi-Fi and has enough battery.
3. Leave them connected for at least 30 minutes to allow for automatic updates.

If an update is available, your AirPods should install it automatically.

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6. Check for Interference or Environmental Factors

Noise cancellation can struggle in certain environments. Consider these factors:

• Wind or Airflow Issues – Strong wind or rapid airflow (like in a moving car or with a fan blowing directly at you) can interfere with ANC.
• Loud, Sudden Noises – AirPods Pro and AirPods Max are optimized for consistent background noise. Sharp, sudden sounds may still be noticeable.
• Electromagnetic Interference – Being near high-powered electronics, Wi-Fi routers, or even some Bluetooth devices can affect ANC performance.

Try using your AirPods in a different location to see if the problem persists.

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7. Disable Transparency Mode

If Transparency Mode is on, it may feel like noise cancellation isn’t working at all.

1. Open Control Center and long-press the volume slider.
2. Ensure Transparency Mode is turned off.

You can also toggle this setting in Settings > Bluetooth > AirPods > Noise Control.

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8. Check Battery Levels

Active Noise Cancellation requires power to function. If your AirPods or AirPods Max are low on battery, ANC may stop working properly.

• For AirPods Pro:
  • Place them in the case for at least 5 minutes and try again.
• For AirPods Max:
  • Charge via Lightning cable for at least 10 minutes before testing ANC again.

If the battery is consistently draining faster than usual, there may be a deeper issue.

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9. Try Using a Different Device

If your AirPods’ noise cancellation works fine on another device, the issue may be with your iPhone, iPad, or Mac.

• Ensure iOS/macOS is up to date by checking Settings > General > Software Update.
• Forget your AirPods and re-pair them:
  • Go to Settings > Bluetooth, tap (i) next to your AirPods, and select Forget This Device.
  • Reconnect them and test ANC again.

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10. Contact Apple Support

If you’ve tried everything and noise cancellation is still ineffective, your AirPods may have a hardware issue.

• Check your warranty status by visiting Apple’s official site.
• Schedule a repair or replacement through the Apple Support app or at an Apple Store.

Apple may offer a free replacement if the issue is covered under warranty or part of a known defect.

Key Takeaways

• Clean your AirPods regularly to prevent debris and earwax from affecting noise cancellation performance.
• Reset your AirPods and ensure they’re running the latest firmware for optimal noise-cancelling functionality.
• Check if your AirPods Pro qualify for Apple’s service program if noise cancellation issues persist after troubleshooting.

Understanding ANC in AirPods Pro

Noise cancellation on AirPods Pro and AirPods Max is one of the most advanced ANC systems in consumer audio, but it’s not immune to problems. By following the troubleshooting steps outlined above, you should be able to resolve most issues and restore the full noise-canceling experience.

If none of these solutions work, don’t hesitate to reach out to Apple—your AirPods may need professional servicing or replacement.

Active Noise Cancellation (ANC) technology in AirPods Pro works by continuously adapting to your ear and the noises around you. This advanced feature sets the Pro model apart from standard AirPods and significantly improves listening experiences in noisy environments.

Principles of Active Noise Cancellation

ANC technology uses built-in microphones to detect external sounds before they reach your ear. Once detected, the AirPods Pro generates equal and opposite sound waves that effectively cancel out the unwanted noise. This process happens in milliseconds, creating a more immersive listening experience.

The technology works best with constant, low-frequency sounds like airplane engines, air conditioners, or traffic noise. It’s less effective with sudden, high-pitched noises or human voices.

For ANC to work properly, the AirPods Pro must create a good seal in your ear canal. Without this seal, external sounds can leak in, significantly reducing the effectiveness of the noise cancellation.

AirPods Pro ANC Features

AirPods Pro offers three noise control modes that users can switch between:

• Active Noise Cancellation: Blocks external sounds
• Transparency Mode: Allows you to hear your surroundings
• Off: No noise control processing

Users can toggle between these modes using the force sensor on the AirPods Pro stem or through Control Center on connected Apple devices. The AirPods Pro also features Adaptive EQ, which automatically tunes music to the shape of your ear.

The H1 chip powers these ANC capabilities, processing sound signals extremely quickly. This chip enables the AirPods Pro to adjust its noise cancellation response up to 200 times per second, continuously optimizing the audio experience.

The silicone ear tips come in multiple sizes to ensure proper fit, which directly impacts ANC effectiveness.

Basic Troubleshooting Steps

Before seeking technical support for AirPods with non-functioning noise cancellation, several simple fixes can resolve the issue. These steps address the most common causes of poor noise cancellation performance including fit problems, debris buildup, and improper settings.

Checking for Proper Fit

A proper seal is crucial for effective Active Noise Cancellation (ANC) on AirPods Pro. Poor fit significantly reduces noise cancellation performance as the technology relies on creating a seal to block external sounds.

Users should try all included ear tip sizes (small, medium, and large) to find the most comfortable and secure fit. The correct size creates a sensation of suction when inserted and stays firmly in place during head movements.

For optimal noise cancellation, the AirPods should sit deep enough in the ear canal without causing discomfort. Rotating the AirPods slightly after insertion can help improve the seal. Some users find better results by using different sized tips in each ear based on their ear anatomy.

Inspecting for Debris and Earwax

AirPods Pro noise cancellation effectiveness can diminish when debris or earwax builds up on the speakers or microphones. Common symptoms include reduced bass response and increased background noise despite ANC being active.

To clean AirPods Pro properly:

• Remove the ear tips and rinse them with water (no soap)
• Let the ear tips dry completely before reattaching
• Clean the mesh screens with a dry cotton swab or soft-bristled brush
• Use a slightly damp lint-free cloth to wipe the exterior surfaces

The microphones (both inward and outward-facing) require special attention as they directly impact noise cancellation. Users should examine the small openings for any blockage and carefully remove buildup without using sharp objects that could damage the components.

Running the Ear Tip Fit Test

Apple provides a built-in Ear Tip Fit Test specifically designed to verify proper ear tip seal. This test uses the internal microphones to measure sound levels and determine if the current ear tips create an optimal seal.

To run the test:

1. Connect AirPods Pro to an iPhone or iPad
2. Go to Settings > Bluetooth
3. Tap the “i” icon next to AirPods Pro
4. Select “Ear Tip Fit Test”
5. Tap “Continue” and follow on-screen instructions

The test results will indicate either “Good Seal” or “Adjust or Try a Different Ear Tip” for each ear. If adjustments are needed, the test provides guidance on how to improve the fit. Users should try different sized tips based on these results until achieving a good seal in both ears.

Technical Solutions for AirPods Pro

When AirPods Pro noise cancellation stops working properly, several technical approaches can restore functionality. These solutions range from simple software updates to factory resets and professional assistance options.

Updating to the Latest Software

Apple regularly releases firmware updates for AirPods Pro that fix bugs and improve noise cancellation performance. These updates install automatically when the AirPods are connected to an iOS device and the device is connected to Wi-Fi.

To check if updates are available, users should ensure their iPhone, iPad, or iPod Touch is running the latest iOS version. This can be verified by going to Settings > General > Software Update.

For Mac users, keeping macOS updated is equally important for optimal AirPods Pro functionality. Apple often bundles AirPods firmware improvements with system updates.

There’s no manual way to force AirPods Pro firmware updates. The best practice is keeping the AirPods in their case, connected to a power source, and near the paired iOS device overnight.

Resetting AirPods Pro Settings

A factory reset often resolves persistent noise cancellation issues. This process clears connection problems and software glitches that might interfere with the noise cancellation feature.

To reset AirPods Pro:

1. Place the AirPods in their charging case
2. Close the lid and wait 30 seconds
3. Open the lid
4. On the paired iPhone or iPad, go to Settings > Bluetooth
5. Tap the “i” icon next to the AirPods Pro
6. Select “Forget This Device” and confirm
7. With the case lid open, press and hold the setup button on the back for about 15 seconds until the status light flashes amber, then white

After resetting, reconnect the AirPods Pro to the device by holding them near the unlocked iPhone or iPad with the case lid open. Follow the on-screen instructions to complete the pairing process.

Connecting with Apple Support

When software updates and resets don’t resolve noise cancellation problems, contacting Apple Support is the next step. Apple offers several support options for AirPods Pro users.

The Apple Support website provides troubleshooting guides specifically for AirPods Pro noise cancellation issues. Users can also schedule appointments at Apple Stores for in-person diagnostics.

Apple’s Support app for iOS devices offers a convenient way to chat with support specialists or schedule repair services. The AirPods Pro Service Program specifically addresses sound issues, including problems with noise cancellation.

Before contacting support, users should note exactly when the problem occurs and what troubleshooting steps they’ve already tried. This information helps support representatives diagnose the issue more efficiently.

Advanced AirPods Pro Troubleshooting

When standard fixes fail to resolve noise cancellation issues with AirPods Pro, deeper troubleshooting methods can address specific problems affecting performance. These advanced solutions target common issues like audio quality degradation, unwanted background noise, and difficulties with switching between listening modes.

Dealing with Static or Loss of Bass Sound

Static sounds or reduced bass quality often indicates debris buildup in your AirPods Pro. This accumulation can significantly impact noise cancellation effectiveness by blocking the external microphones that detect ambient sounds.

Clean your AirPods Pro carefully using a soft, dry, lint-free cloth. For stubborn debris around the mesh screens, use a clean, dry cotton swab. Never use sharp objects or liquids that could damage the sensitive components.

If cleaning doesn’t help, check for firmware updates. Connect your AirPods to your iOS device, go to Settings, and look under the AirPods information when they’re connected.

Apple offers a specific service program for AirPods Pro manufactured before October 2020 that experience sound issues. If your device falls within this timeframe and problems persist, contact Apple Support to check eligibility for free service.

Disabling Background Sounds on Apple Device

Background sounds from your Apple device can interfere with AirPods Pro noise cancellation. These system sounds might be competing with the noise cancellation technology.

Navigate to Settings > Accessibility > Audio/Visual > Background Sounds and ensure this feature is turned off when using noise cancellation.

Check your device’s notification settings and temporarily disable alerts that might interrupt your listening experience:

• Go to Settings > Notifications
• Consider enabling Do Not Disturb mode while using noise cancellation
• Review which apps have permission to play sounds

For iOS 15 and later, verify Focus mode settings aren’t allowing certain sounds to bypass your noise cancellation.

Switching Between ANC and Transparency Mode

If you’re having trouble toggling between Active Noise Cancellation (ANC) and Transparency mode, try these solutions:

Method 1: Using Force Sensors

• Press and hold the force sensor on the stem of either AirPod
• You should hear a chime indicating the mode has changed
• If unresponsive, try cleaning the sensors with a dry cloth

Method 2: Control Center Access

1. Open Control Center on your iOS device
2. Press and hold the volume control
3. Select your desired listening mode from the menu at the bottom

For better control, customize how your AirPods respond by going to Settings > Bluetooth, then tap the (i) icon next to your AirPods Pro and adjust the Press and Hold settings for each AirPod.

If switching still fails, try resetting your AirPods Pro by placing them in the case, holding the setup button for 15 seconds until the light flashes amber, then reconnecting to your device.

Maintenance and Care for AirPods Pro

Proper maintenance of AirPods Pro is essential for maintaining optimal noise cancellation performance. Regular cleaning and care can prevent the buildup of debris that affects sound quality and noise cancellation functionality.

How to Clean AirPods Properly

Cleaning AirPods Pro requires gentle handling to avoid damage. Users should start by wiping the exterior surfaces with a soft, dry, lint-free cloth. For stubborn marks, the cloth can be slightly dampened with fresh water, making sure no liquid enters any openings.

The mesh screens on AirPods Pro require special attention as they often collect earwax and debris. A clean, dry cotton swab can gently remove buildup from these areas. For more precise cleaning, a soft-bristled brush (like a clean toothbrush) works effectively on the microphone and speaker meshes.

Silicone ear tips should be removed and rinsed with water only—no soap or cleaning products. After rinsing, they should be thoroughly dried before reattachment. Users should avoid using sharp objects or abrasive materials that might damage the delicate components.

Regular cleaning should be performed every 72 hours of use to prevent earwax and debris accumulation that can significantly reduce noise cancellation effectiveness.

Participation in Service Programs

Apple offers official support channels for AirPods Pro users experiencing noise cancellation issues. Understanding these programs can help resolve persistent problems when troubleshooting steps fail.

Exploring AirPods Pro Service Program

Apple has acknowledged that some AirPods Pro manufactured before October 2020 may experience sound issues. The company created a dedicated service program to address these specific problems.

Common symptoms covered by this program include crackling or static sounds that increase in loud environments, during exercise, or phone calls. The program also addresses Active Noise Cancellation not working properly, which might manifest as a loss of bass sound or increased background noise like street or airplane sounds.

To participate in this program, users can contact Apple Support directly or visit an Apple Store. Apple Authorized Service Providers can also help determine eligibility.

The service program covers affected AirPods Pro for three years after the first retail sale of the unit. Apple will examine the AirPods Pro and replace one or both earbuds if they confirm the issue.

This service is provided free of charge for eligible devices. Users should ensure their AirPods Pro firmware is updated before seeking service, as some issues may be resolved through software updates.

Preventive Measures for Optimal ANC Performance

Maintaining effective noise cancellation requires regular care and proper usage of your AirPods. These preventive steps can help you avoid common ANC issues before they start.

Ensuring Optimal Ear Tip Fit

Proper ear tip fit is crucial for effective noise cancellation on AirPods Pro and similar models. A good seal blocks external noise and allows the ANC technology to work efficiently.

Users should run the Ear Tip Fit Test in Settings after connecting their AirPods to their iOS device. This test uses sound to verify whether the current ear tips create a proper seal.

Try all the included ear tip sizes (small, medium, and large) to find the most comfortable and effective fit. Different ears may require different sizes, and some users even need different sizes for each ear.

Check the ear tips regularly for dirt or wax buildup. Clean them gently with a dry cotton swab or soft cloth, being careful not to push debris further into the mesh.

Replace ear tips if they show signs of wear or damage. Worn cushions compromise the seal and reduce ANC effectiveness significantly.

When inserting AirPods, twist them slightly to create the best possible seal in the ear canal. This simple technique can dramatically improve noise cancellation performance.

Frequently Asked Questions

AirPods noise cancellation issues can be frustrating, but most problems have straightforward solutions. Here are answers to common questions about troubleshooting noise cancellation functionality on various AirPods models.

How can I troubleshoot my AirPods Pro if the noise cancellation is not functioning properly?

First, ensure the AirPods Pro have the latest firmware by keeping them connected to an iOS device with internet access. This allows automatic updates to install.

Check for debris or earwax buildup that might be blocking the microphones or speakers. Clean the AirPods gently with a soft, dry cloth and pay special attention to the mesh areas.

If users experience a loss of bass sound or increased background noise, these are common indicators of noise cancellation issues. For AirPods Pro 1 with persistent problems, Apple’s AirPods Pro Service Program for Sound Issues may offer free replacements.

What steps should I follow to reset my AirPods in order to restore the noise cancellation feature?

Place the AirPods in their charging case and close the lid. Wait for about 30 seconds before reopening it.

On the connected iPhone or iPad, go to Settings > Bluetooth and tap the “i” icon next to the AirPods name. Select “Forget This Device” and confirm the action.

Press and hold the setup button on the back of the case for about 15 seconds until the status light flashes amber, then white. This indicates the AirPods have been reset and are ready to pair again.

Why might noise cancellation on my AirPods not work effectively in one ear and what can I do about it?

Uneven noise cancellation often results from an improper ear tip fit in one ear. Try different sized tips to create a better seal.

Check if the “Noise Cancellation with One AirPod” setting is enabled in the Accessibility settings. Without this feature, noise cancellation only works when both AirPods are in use.

Clean both AirPods thoroughly, as debris in one earbud can cause imbalanced performance. If the problem persists, test each AirPod individually to identify which one has issues.

How do you test that the noise cancelling feature is active on AirPods Pro?

Place the AirPods Pro in your ears and press and hold the force sensor on either stem until you hear a chime indicating the mode has changed. The noise cancellation mode should noticeably reduce background sounds.

For a more formal test, play consistent background noise like a fan or air conditioner, then toggle between Off and Noise Cancellation modes to hear the difference.

Users can also verify active noise cancellation through Control Center on an iPhone by pressing and holding the volume slider when AirPods are connected, then checking which mode is highlighted.

What could be the reasons for noise cancelling to stop working on AirPods Max?

Software issues are common culprits. Check if the AirPods Max firmware needs updating by keeping them connected to an iOS device.

Physical damage to the ear cushions can compromise the noise-cancelling seal. Inspect and replace cushions if they appear worn or damaged.

Reset the AirPods Max by pressing and holding both the Digital Crown and noise control button for 15 seconds until the LED flashes amber, then white. This often resolves software glitches affecting noise cancellation.

Is it possible to use the noise cancellation feature with only one AirPod, and if not, why?

Yes, noise cancellation can work with just one AirPod, but this feature must be specifically enabled. Go to Settings > Accessibility > AirPods, then toggle on “Noise Cancellation with One AirPod.”

This feature is disabled by default because noise cancellation works optimally with both AirPods creating a complete sound barrier. Single AirPod noise cancellation may not be as effective at blocking environmental sounds.

The technology requires multiple microphones working together for best results, which is why some users might notice reduced effectiveness when using only one AirPod even with the setting enabled.