How do earbuds turn noise cancelling on and off?

Question

I truly don’t understand the mechanics of this.

In: 18

Answer 1

Ear buds with noise-canceling technology use special microphones and other electronic parts to help block out background noise.

The microphones on the ear buds pick up the sounds around you, and then the electronic parts in the ear buds create a special sound that is the exact opposite of the background noise. This special sound is called an “anti-noise” sound.

When the anti-noise sound is played through the ear buds, it cancels out the background noise, so you can hear the music or other sounds that you want to listen to more clearly. This helps to make the music or other sounds sound more crisp and clear, even if there is a lot of background noise.