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How do noise cancelling headphones work and to what extent?
Asked by Zone36 (416)
January 18th, 2010
I just saw this video of these guys yelling at their friend who had the headphones on. I’m 99.99% certain they don’t work that well.
But what exactly do they do? I’m guessing they can block out ambient noises like hums and such, but what are they doing exactly?
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