摘要
根据国家标准因地制宜建成了汕头大学混响室。测量材料无规入射吸声系数a_s时,推荐使用的测试频段为中心频率125～4000Hz的1/3倍频程带宽。
The reverberation Chamber of Shantou University has been set up in accordance with relevant national standards and in line with local Conditions. The test band recommended by us for measuring random-incidence sound absorption coefficient a_s of the acoustic absorbent is 1/3octave band width of the central frequency 125～4000Hz.
出处
《汕头大学学报（自然科学版）》
1990年第2期7-14,共8页
Journal of Shantou University：Natural Science Edition
关键词
混响室
吸声材料
吸声系数
reverberation chamber
acoustic absorbent
sound absorption coefficient
