摘要
讨论了影响消声室声场的因素,给出了消声室声场的判据,对消声室内声场的计算提出了看法并采用OEDON软件对南京大学消声室的声场进行建模计算,结果与理论及实测结果较为一致,并对认为低频截止频率没有意义的观点提出了不同意见。
Factors affecting the sound field in an anechoic chamber are discussed, and criterions of the sound field in the anechoic chamber are proposed. Some opinions on the calculation of the sound field are presented, and the computer-aided acoustic design tool ODEON is used to compute the sound field in the anechoic chamber in Nanjing University. The calculated results agree with the theoretical and experimental results. A different view against the one that the low cutoff frequency is meaningless is set forth.
出处
《电声技术》
2011年第3期4-7,44,共5页
Audio Engineering
关键词
消声室
自由场偏差
截止频率
anechoic chamber
free-field deviation
cutoff frequency
