How Noise Cancelling Headphones Work 🤔

When you put them on, tiny microphones inside pick up the noise around you, and they read the highs and lows of the sound wave.It uses it to create a wave that's practically the opposite.And when this is played through the headphones, the two sound waves cancel each other out, which cuts out a lot of the outside noise.

But if your mom suddenly screams at you, the headphones have to hear the sound, read the wave, and make the opposite one.So if the noise changes too fast, by the time they react, it's already too late.