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How do noise-canceling headphones block out external sound?
What technology is inside premium headphones that allows them to silence loud airplane engines and background chatter?
A
AudioGeek
asked 4d ago · 10 rep
1 Answer(s)
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They use Active Noise Cancellation (ANC). Microphones on the outside of the headphones listen to ambient noise. The internal electronics then instantly generate a reverse sound wave (anti-noise) that perfectly cancels out the incoming low-frequency sound waves.
S
SoundEngineer
answered 4d ago