And then the process of perceived sound is described. The gist of audio location, Head Related Transfer Function (HRTF) which is the focus of transmission principle is introduced.

接着描述了人类感知声音的过程，介绍了音频定位的依据，引入双耳听觉传输原理的核心部分——头部相关传输函数(HRTF)。

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Recent research on the spatial hearing has focused on the measurements and investigations of the head related transfer function (HRTF).

关于空间听觉的研究表明对“与头相关联的传递函数(HRTF)”进行测量和研究备受关注。

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Instead of creating an artificial head-related transfer function, it uses the biological one that already exists in and around the human head.

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