brazeau t1_j2e3xei wrote
Reply to comment by theperfectmuse in Eli5 How exactly does Noise cancellation work? That too in such small airbuds by Professional-Ad3441
A speaker moves in and out to make pressure waves picked up by your eardrums. You can make a speaker that basically catches the incoming pressure waves.
If one speaker moved outwards, the opposite one would move inward.
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