Active Noise Control

Active Noise Control (ANC) is a method of reducing unwanted sound by introducing a second sound wave that is equal in amplitude but opposite in phase to the original sound wave. In aviation, ANC is used to reduce the noise generated by aircraft engines and other sources of noise within the cabin. ANC systems use microphones to detect the sound waves and then generate a second sound wave that cancels out the original noise. This technology is particularly useful in reducing the noise levels experienced by passengers and crew during flight, which can help to improve comfort and reduce fatigue. ANC systems are also used in ground support equipment and other aviation-related applications where noise reduction is important.
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