近场结构化头相关传输函数的测量与分析  

Measurement and Analysis for Proximal and Structural Head-Related Transfer Function

作　　者：吴玺宏[1,2] 吕振洋 高源[1,2] 曲天书[1,2] 

机构地区：[1]北京大学机器感知与智能教育部重点实验室,北京100871 [2]北京大学言语听觉研究中心,北京100871

出　　处：《数据采集与处理》2014年第2期180-185,共6页Journal of Data Acquisition and Processing

基　　金：卫生部行业专项基金(201202001)资助项目;国家自然科学基金(61175043;91120001;61121002)资助项目

摘　　要：采用脉冲发生器作为点声源,通过控制水平角、仰角和距离等三维空间参数,测量了一种高空间分辨率的结构化头相关传递函数,其中包括头传递函数、头和耳廓传递函数以及头和躯干传递函数。基于测得的结构化头相关传递函数,分析了各结构对头相关传递函数的影响,并结合本研究测得的结构化头相关传递函数和2009年测得的完整头相关传递函数,基于两种加性法则计算分析了耳廓传递函数,分析结果表明两种方法得到的耳廓相关传递函数具有高相关度,验证了头相关传递函数是由头、躯干和耳廓的传递函数叠加而成的合理性。The structural head-related transfer functions with high spatial resolution are meas- ured using spark gap generator, which include head transfer function, head and pinna transfer function and head and torso transfer function. Based on the measured structural transfer func- tions, the effects of head, pinnae and torso on the total head-related transfer function are ana- lyzed. Using the measured structural head-related transfer functions and the total head-related transfer functions, the pinna transfer functions are calculated using two different methods. The results show that the two pinna transfer functions are highly correlated in frequency do- main. That means, under some conditions, the head-related transfer function can be seen as the summation of head transfer function, torso transfer function and pinna transfer function.

关 键 词：头相关传递函数 点声源 空间分辨率 近场 远场 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程]