Anc Research

Lucy Chu Research the active noise decrease (ANR) technology implement in noise-cancelling headph unitys. How does it work? What physics principles be involved? What ar some other applications that use ANR technology? Choose wiz application, and explain how it works. (List your resources) (Due Monday 19 March) Active Noise step-down is a technology that reduces the unwonted noise outside the headphones to provide the user a high quality audio service. It is also eff as the noise cancellation and active noise control. The ANR technology creates an anti-noise cross out that results in harmful kerfuffle and cancels out the original noise. By creating a wave of the same amplitude and frequency as the external noise, two waves backsheeshs and troughs are arranged such that the upside of one wave lines up with the trough of the other wave, thereby cancels out one another. One of the applications of the active noise reduction technology is the muffler in internal combustion engines.

It is a device designed to reduce the loud functions created by the engine. on that point are tubes in the muffler designed to glow sound waves produced by the engine. The sound waves enter the tube and the chambers. The fiberglass withdrawal and the resonating chambers that are tuned to cause destructive interference absorb the noise. Therefore, the original noise is cancelled out. refer: hypertext transfer protocol://electronics.howstuffworks.com/gadgets/audio-music/noise-canceling-headphone3.htm http://www.silentium.com/about/active-noise-control/ http://www.2carpros.com/articles/how-exhaust-systems-workIf you want to get a full essay, order it on our web site: O! rderEssay.net

If you want to get a full information about our service, visit our page: How it works.