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The Best of Bose: Bose Quiet Comfort 15 Acoustic Noise Cancelling HeadphonesBackgroundBose offered the first-ever commercially available noise-cancelling headphones in 1989. Since then, there have been several models manufactured by the company. Models such as the Bose Quiet Comfort 15 Acoustic Noise Cancelling Headphones work to cancel distracting ambient, acoustic background sounds to help users focus in a silent environment. Consumers view Bose as the gold standard for noise-cancelling headphones and continue to choose Bose because of the company’s superior noise-cancelling capabilities and added the comfort their headphones offer.Noise-cancelling TechnologyThere are two types of noise-cancelling headphones on the market. Active noise-cancelling and passive noise-cancelling. Bose uses both active and passive technologies to reinforce a guaranteed noise-cancelling experienceActive noise-cancelling headphones not only blocks high-frequency sound waves, but also actively eliminated lower-frequency sound waves. This elimination is accomplished by creating its own sound waves that are essentially opposite of the undesired waves. The phenomenon this creates is known as destructive interference, as both waves effectively cancel the other out.Passive noise-cancelling headphones use a type of sound-absorbing cushion, such as a high-density foam, to absorb the ambient sound waves.Reasons for UseThe Bose Quiet Comfort 15 Acoustic Noise Cancelling Headphones may be used with or without being plugged in to a (3.5 mm) headphone jack. In other words, the headphones are able to cancel noise with or without being plugged in to an external audio source. These headphones were specifically designed for passenger use on an airplane to cancel the loud drone of aircraft engines.Choose BoseIn September of 2016, Sony released the Sony MDR-1000X noise-cancelling headphones. The current retail price for the Sony MDR-1000X headphones at Best Buy is $399.99. Although a now-discontinued model, the Quiet Comfort 15 model can currently be purchased for $304 on Amazon. In terms of similarities between Sony’s model and Bose’s, both models are said to have similar effectiveness in noise-cancelling capabilities, however reviewers have given the edge to Bose for a more consistent active noise-cancelling experience. Bose is also said to be more comfortable and a lighter weight at 140 grams, compared to Sony’s model which is almost double the weight at about 275 grams.Bose Quiet Comfort 15 Acoustic Noise Cancelling HeadphonesHeadphone cushions featured on the Bose Quiet Comfort 15Emily MartinIntro to Technical WritingMajor Project 1: Technical Description27 February 2017Sources1 ................
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