AirPods Pro noise cancellation can be activated by whistling

When using AirPods Pro in transparent mode and start whistling, the earbuds will automatically enable noise cancellation, reddit users have found.

In addition to whistling, when driving with a window open, the noise cancellation function will also be activated.

One redditor speculates it’s all because the device tries to “protect your ears from loud high-pitch noises.”

Apple AirPods Pro itself has a so-called transparent mode, which allows users to hear external sounds while listening to music, so that users always understand the surrounding environment.

This feature is simple at first glance, but after a closer look you will find that it is a very complicated feature.

In a nutshell, AirPods Pro uses a unique system and software analysis to determine if the external environment needs to be eliminated using a noise reduction system.

The purpose of this is to maintain the ability to perceive the surrounding environment when users are running on the street, so Apple AirPods Pro technically can achieve a balance between music listening and surrounding environment perception, so that users can listen to music without isolation All external noise.

But it turns out that when using AirPods Pro in transparent mode, some noises can easily activate the function of completely eliminating noise. Whistling is one of them, and one tuner speculates that this is because Apple AirPods Pro is "to protect the user's ears from high-pitched noise."

The official explanation from Apple is that "with Active Noise Cancellation, an outward-facing microphone detects external sounds, which your AirPods Pro then counter with anti-noise, canceling the external sounds before you hear them. "

An inward-facing microphone listens inside your ear for unwanted internal sounds, which your AirPods Pro also counter with anti-noise, according to Apple.