Acoustical Treatment Primer:Absorption 谈谈声学处理中的“吸声”(二)

作者：Gerry Lemay; 杜晓文

来源：家庭影院技术, 2018, (11): 60-65.

<正>Absorption Coefficient (AC)吸声系数In the early days, most used 1"(25mm) thick panels. It was ctheap and plentiful. Soon it was pointed out that using 2"(50mm)produced better results and then 3"(75mm) and even thicker layers were used. The science behind this is based on understanding the acoustical absorption coefficient