The technology of sound cancellation might have been invented in early 1950 for airplanes and helicopter cockpits, but this technology was not so popular for public until the year of 1970, when Dr. Amar Bose, the founder of an electronic company, applied this technology to create and market electronic products that were commercially available. Many people for today tool the advantage of cancelling headphones in order to eliminate the sounds from the environment. How does noise cancelling headphones work anyway? Some people say that its popular application includes reducing sound while you are traveling on the airplanes, just like the engine noise and reducing the sound while studying or reading.
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