ho-tron t1_j2dyt65 wrote on December 31, 2022 at 3:35 PM

Reply to comment by Meenjataka02 in Eli5 How exactly does Noise cancellation work? That too in such small airbuds by Professional-Ad3441

Does it play the opposite sound into the users ear? Or play it towards the incoming sound to ‘shield’ the users ear?

KlzXS t1_j2e2mii wrote on December 31, 2022 at 4:03 PM

For it to be effective the waves need to line up and be in sync. You can't know where a sound is coming from, but you do know where it goes. Right into the ear. So you cancel it there.

ho-tron t1_j2e775l wrote on December 31, 2022 at 4:35 PM

Thanks, makes sense