消声室是供空气声学研究与测试使用的试验室。消声室的建立近似于重现了一个无限扩展空间研究室的作用,在消声室的室内可以进行需要自由声场的任何试验和测定,声音可不受界面的反射及干扰,毫不约束地向各个方向自由传播。消声室的使用范围遍及于声学、建筑声学、噪声控制、语言声学、生理声学以及声波在空气中传播现象等基本规律的研究。当前,国 The anechoic chamber is a laboratory used for acoustic research and testing of air. The establishment of an anechoic chamber approximates the role of an infinitely expanding space research laboratory. Any test and measurement that requires a free sound field can be performed in the room of the anechoic chamber. The sound can be reflected and interfered with by the interface without any restriction. All directions are free to spread. The scope of use of anechoic chambers covers the study of basic laws such as acoustics, architectural acoustics, noise control, speech acoustics, physiological acoustics, and propagation of sound waves in the air. Currently, the country