噪声是声源做无规则振动时发出的声音。从环境保护的角度来看,一切影响人们正常学习、工作和休息的声音都是噪声。噪声是难听的、令人厌烦的。但是,如果我们换个角度来看待噪声的话,你会觉得眼前一亮,噪声竟然是一种放错了地方的资源!1.以声消声:所有的声音都是由一定的频谱组成(通过示波器可以看到不同声音特有的波形),如果可以找到一种声音,其频谱(波形)与想要消除的噪声完全一样,只是方向刚好相反(相差180°),就 Noise is the sound that the sound source makes when it vibrates irregularly. From an environmental point of view, everything that affects people’s normal learning, work and rest is noise. Noise is unpleasant and boring. However, if we look at the noise from another angle, you will find yourself shining brightly and the noise is actually a misplaced resource! 1. Acoustic noise cancellation: All sounds are made up of a certain spectrum (through the oscilloscope You can see waveforms unique to different sounds.) If you can find a sound whose spectrum (waveform) is exactly the same as the noise you want to cancel, but just in the opposite direction (180 ° difference)