EASE中%AL_(cons)的计算方法  

Algorithms of Calculating %AL_(cons) Used in EASE

作　　者：张昌佳[1] 

机构地区：[1]华南理工大学亚热带建筑科学国家重点实验室,广东广州510640

出　　处：《电声技术》2010年第9期13-16,25,共5页Audio Engineering

摘　　要：EASE中计算辅音清晰度损失百分率的Peutz公式有多种形式,基于扩散声场理论推导出不同形式的Peutz公式的计算方法,并计算了一个具体算例。理论推导和算例研究表明:EASE的标准模拟中的%ALcons计算值与理论推导值吻合;不同形式的Peutz公式之间存在一定关系。算例计算显示,EASE中AURA模块计算的%ALcons值与理论推导值之间存在较大差异;相同形式Peutz公式在不同分割时间时计算值之间存在较大差异,同一分割时间不同形式Peutz公式的计算值之间也存在较大差异。There are several algorithms of calculating %ALcons in software EASE, Using diffuse sound field theory, how these algorithms work is introduced. These algorithms are also investigated using an example. The theoretic analysis and example investigation shows that the calculated %ALcons values and theoretic values are identical with each other, and there are some relation among different forms of Peutz formula. The example found that there is significant difference in %ALcons values got from AURA and theoretic values Differences are also found in %ALcons values calculated by different algorithms or calculated by the same algorithms with different split time.

关 键 词：ALcons Peutz公式 EASE 扩散声场 

分 类 号：TU112[建筑科学—建筑理论]