近场结构化头相关传输函数的测量与分析

本研究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。

Measurement and Analysis of Structure Head-related Transfer Function

In this work, the structural head-related transfer functions with high spatial resolution were measured using spark gap generator. The structural head related transfer functions include head transfer function, head and pinna transfer function and head and torso transfer function. Based on the measured structural transfer functions, the effects of head, pinnae and torso on the total head related transfer function have been analyzed. Using the measured structural head related transfer functions and the total head related transfer functions, the pinna transfer functions were calculated using two different methods. The results show that the two pinna transfer functions are highly correlated in frequency domain. 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.