| 头相关传输函数幅度谱的听觉空间分辨阈值的分析 |
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| 引用本文： | 刘昱, 谢菠荪, 余光正, 芮元庆. 头相关传输函数幅度谱的听觉空间分辨阈值的分析[J]. 声学学报, 2015, 40(3): 343-352. DOI: 10.15949/j.cnki.0371-0025.2015.03.001 |
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| 作者姓名： | 刘昱 谢菠荪 余光正 芮元庆 |
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| 作者单位： | 1 华南理工大学 理学院物理系声学研究所 广州 510641; |
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| 基金项目： | 国家自然科学基金(11174087)资助 |
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| 摘 要： | 提出一种分析头相关传输函数(head-related transfer function,HRTF)幅度谱的听觉空间分辨阈值模型。采用数值计算得到的高空间分辨率HRTF数据,计算了声源空间位置变化引起的HRTF幅度谱的变化,进一步利用Moore响度模型分析双耳响度级差、双耳响度级谱和总响度级等三个听觉感知量的变化。根据现有的3个听觉感知量最小可察觉差异,模型利用双耳响度级差和双耳响度级谱的变化得到的估计结果与心理声学实验一致,因此是一种有效预测听觉空间分辨阈值的方法,可用于为简化虚拟听觉信号处理和数据储存。
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| 收稿时间： | 2013-10-27 |
| 修稿时间： | 2014-03-26 |
Analysis of the spatial discrimination threshold of head-related transfer function magnitude |
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| LIU Yu, XIE Bosun, YU Guangzheng, RUI Yuanqing. Analysis of the spatial discrimination threshold of head-related transfer function magnitude[J]. ACTA ACUSTICA, 2015, 40(3): 343-352. DOI: 10.15949/j.cnki.0371-0025.2015.03.001 |
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| Authors: | LIU Yu XIE Bosun YU Guangzheng RUI Yuanqing |
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| Affiliation: | 1 Acoustic Lab, Physics Dept., School of Science, South China University of Technology Guangzhou 510641;2 State Key Laboratory of Subtropical Building Science, South China University of Technology Guangzhou 510641 |
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| Abstract: | A model for analyzing spatial discrimination threshold of head-related transfer function (HRTF) magnitudes is presented.First,the position-dependent variations in HRTF magnitudes were evaluated by using a calculated high resolution HRTF dataset.Second,three perceptual-relevant parameters,that is,interaural loudness level difference,binaural loudness level spectra and total binaural loudness level were derived from Moore's loudness model.Finally,spatial discrimination threshold of HRTF magnitudes was effectively predicted through the just-notice-difference of three perceptual-relevant parameters. Results predicted by the model well agreeed with those from psychoacoustic experiments.Therefore,the model is effective for predicting spatial discrimination threshold of head-related transfer function magnitude and applicable to simplify signal processing and HRTF data in virtual auditory display. |
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