| 近场头相关传输函数的最小相位特性研究 |
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| 引用本文： | 陈相旭,余先正,李晓东. 近场头相关传输函数的最小相位特性研究[J]. 电声技术, 2010, 34(2): 51-55 |
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| 作者姓名： | 陈相旭 余先正 李晓东 |
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| 作者单位： | 华南理工大学,理学院物理系,声学研究所,广东,广州,510640;中国科学院,声学研究所,噪声与振动院重点实验室,北京,100190 |
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| 摘 要： | 通过分析近场HRTF原函数与最小相位近似函数之间的相关性和相位误差,研究生理结构影响近场HRTF最小相位特性的空间规律。结果表明,近场HRTF最小相位特性整体较好,较差的区域主要是在受声耳异侧与前方之间的区域;最小相位特性随声源距离的变化没有大的差异,只是在局部有所不同。最后,对HRTF最小相位近似进行了心理声学实验,发现最小相位近似引起的相位误差在听觉上是不可辨别的。
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| 关 键 词： | 近场头相关传输函数 最小相位近似 相关性 相位误差 |
A Study on Minimum-phase Character of Near-field HRTF |
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| CHEN Xiang-xu,YU Guang-zhen,LI Xiao-dong. A Study on Minimum-phase Character of Near-field HRTF[J]. Audio Engineering, 2010, 34(2): 51-55 |
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| Authors: | CHEN Xiang-xu YU Guang-zhen LI Xiao-dong |
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| Affiliation: | 1. Acoustic Lab;Physics Dept.;School of Science;South China University of Technology;Guangzhou 510640;China;2. Key Laboratory of Noise and Vibration Research;Institute of Acoustics;Chinese Academy of Sciences;Beijing 100190;China |
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| Abstract: | Based on the similarity index and the phase error between the measured HRTF set and its minimum-phase approximation, the spatial distribution of the impact of the physical structures on the minimum-phase character of the near-field HRTF is discussed. The analysis results show two important characteristics. The first is that the minimum-phase approximation of the near-filed HRTF fits well for most directions except for contralateral and frontal directions. The second is that the spatial distribution does not... |
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| Keywords: | near-field HRTF minimum-phase approximation similarity index phase error |
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