Eli5 How exactly does Noise cancellation work? That too in such small airbuds

Question

Eli5 How exactly does Noise cancellation work? That too in such small airbuds

In: 528

Answer 1

Immagine a still lake. You throw a pebble in the water. Ripple spread out. Then quickly throw another pebble near by. It too makes ripple. Where the first p bibles ripples encountered the second ripples they kinda cancel each other out.