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本文提出一种宽带管道有源消声器,它的结构很简单,是由单源系统组成,总长只有60cm,从20Hz—1000Hz的频段内能获得10dB—20dB的声衰减.
This paper presents an active muffler for broadband ducts. Its structure is very simple. It consists of a single-source system with an overall length of only 60cm. It can achieve sound attenuation of 10dB-20dB from 20Hz-1000Hz.