隔声响度级差计算  

Modelling sound insulation in terms of loudness level

作　　者：王蒙蒙[1] 蒋国荣[1] 

机构地区：[1]同济大学物理科学与工程学院声学研究所,上海200092

出　　处：《电声技术》2016年第8期10-12,共3页Audio Engineering

基　　金：国家自然科学基金面上项目(11274243)

摘　　要：空气声隔声评价中基于声压级差的隔声参量与主观隔声量并不一致,而响度考虑了人耳听觉特性与主观隔声量具有较高的相关性,由此提出采用响度级差作为隔声评价新参量。通过滤波器模拟空气声隔声,建立隔声响度级差的计算模型,对实际墙体的隔声响度级差进行计算并与计权隔声量分析对比。The objective measures of sound insulation in terms of sound level difference are not in agreement with subjective assessment.While loudness is strongly related with hearing characteristics and well correlates with subjective impressions. Therefore loudness level difference is proposed to be a new measure of sound insulation evaluation.Sound insulation is simu- lated using digital filters and the loudness level difference is derived from loudness model. The loudness level difference of practical walls are compared with the weighted sound insulation.

关 键 词：空气声隔声 响度模型 响度级 

分 类 号：TU112.3[建筑科学—建筑理论]