Representation and comparison of HRTF in spatio-temporal frequency domain

Y. Morimoto, Takanori Nishino, K. Takeda
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Abstract

We represent a head-related transfer function (HRTF) in the spatio-temporal frequency domain. Since an HRTF is defined as an acoustic function of time and location of sound source, the spatio-temporal frequency characteristics of HRTFs can be visualized and analyzed by multi-dimensional Fourier transform in time and space. In our experiments, we investigate a basic property of the spatio-temporal frequency characteristic and the difference between HRTFs obtained by numerical analysis and actual measurements. The influences caused by pinnae for the spatio-temporal frequency characteristic are also examined. It is found that the spatio-temporal spectral components are mostly concentrated in specific frequency bands, and these components are different in each measurement condition.
HRTF在时空频域的表示与比较
我们在时空频域中表示一个头部相关传递函数(HRTF)。由于HRTF被定义为声源时间和位置的声学函数,因此可以通过在时间和空间上的多维傅里叶变换来可视化和分析HRTF的时空频率特征。在我们的实验中,我们研究了时空频率特性的一个基本特性,以及数值分析和实际测量得到的HRTFs之间的差异。此外,还研究了耳廓对时空频率特性的影响。研究发现,时空谱成分主要集中在特定频段,且在不同测量条件下,时空谱成分有所不同。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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