德国科学家日前开发出一种新型的降噪窗户,能够通过窗上的扬声器传出与户外噪音恰好相反的声波,从而达到降噪消音的目的。柏林技术大学的专家安德烈·雅各布认为,这种降噪原理其实和机场工人戴的保护耳塞一样,都是通过人造的声音干扰外界的噪音,使得两种恰好相反的声波互相抵消。 Recently, German scientists have developed a new type of noise reduction window, which can transmit the sound wave opposite to outdoor noise through the speaker on the window to achieve the purpose of noise reduction and sound reduction. Andrea Jakob, an expert at the Technical University of Berlin, believes that this noise reduction principle, like airport workers wearing protective earplugs, interferes with the external noises through artificial sounds and cancels the two opposite sound waves.