Airport Noise Reduction
Do you live near an airport and cannot stand the noise? Many of us do. Generally the airport was there before us however. In some cases the little airplanes turned into full-blown airliners. Reducing airport noise can be achieved by using sound waves towards the noise area. One way to do this is to use a similar noise or sound wave and point it above the homes in a flat directional set of beams like a funnel.
By sending the waves up they would meet with the sound from the aircraft and cancel out the noise from the airport. There are a few issues with this of course as it would effect other types of signals such as satellite radio and TV and local radio stations would be a little choppy. This strategy of course could be used for many things such canceling out train noise or freeway noise. Think of it as a virtual sound wall. Sound is a Sin Wave and creating another wave opposite to it you can cancel out the highs. The high pitched sound which makes it impossible to hear and almost impossible to think.
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Tags: Airport