Active Noise Cancellation and Whatnot Active noise cancellation is basically electronic circuitry that "listens" to ambient noises. Then a near exact opposite wavelength to the offending sounds is generated, reducing our ability to hear them. Headphones with active noise-canceling ...
The 20th century allowed our human ears to enjoy private music, more than any time before. In 1910, Nathaniel Baldwin invented the headphones in the kitchen of his Utah home. In a nutshell, headphones enabled people to privately and individually interact with media; beyond personal ...