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This simple white noise machine offers ten fan sounds and ten ambient noise variations (including white, pink and brown noise). It is powered by either AC or USB and you can adjust the volume with ...
Take up to $100 off the best-selling earbuds and over-ear noise-cancelling headphones from Sony, Beats, Bose, and Apple this Amazon Prime Day.
Adaptive Sound Technologies (AST) keeps it dead simple with the LectroFan Evo—a compact, hexagonal sound machine with a cool throwback to 80s technology. All of the features (power and volume ...
Active noise control ( ANC ), also known as noise cancellation ( NC ), or active noise reduction ( ANR ), is a method for reducing unwanted sound by the addition of a second sound specifically designed to cancel the first. The concept was first developed in the late 1930s; later developmental work that began in the 1950s eventually resulted in ...
In a noisy environment, both microphones receive noise at a similar level, but the primary mic receives the desired sounds more strongly. Thus if one signal is subtracted from the other (in the simplest sense, by connecting the microphones out of phase) much of the noise is canceled while the desired sound is retained.
It is best known for its home audio systems and speakers, noise cancelling headphones, professional audio products and automobile sound systems. Bose has a reputation for being particularly protective of its patents, trademarks, and brands. The majority owner of Bose Corporation is the Massachusetts Institute of Technology.
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