How Active Noise Cancellation Works

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Noisy environments can both distract and irritate you when you want to get work done. Headphones with active noise-cancellation abilities can offer a respite, but do you know how they work? In this article we discuss the manner in which headphones from Bose, Beats, and other brands keep outside noise out of your ears. The Shape of Sound The most important lesson you should learn today is that sound waves follow a regular pattern. A sound wave of any frequency compresses and rarefies (releases the compression) molecules as it moves through the air. This is comparable to a transverse wave,

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