A Relevant Distance Criterion for Interpolation of Head-Related Transfer Functions
A Relevant Distance Criterion for Interpolation of Head-Related Transfer Functions
复制标题
头部相关传递函数插值的相关距离准则
DOI：
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复制
发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Seok
中科院分区：
文献类型：
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作者：
Ki;Seok
在双耳合成中，为了实现更精确和准确的空间声音，需要测量各个方向上的大量头部相关传递函数（HRTF）。为了减小 HRTF 的大小，通常采用插值法，其中任何方向的 HRTF 都可以通过有限数量的代表性 HRTF 获得。在本文中，确定了水平面上 HRTF 插值的哪种失真测量最适合预测声音位置的可听差异。本研究准备了四种 HRTF 组，使用三个人体头部和一个人体模型 (KEMAR) 进行测量。使用各种客观失真标准，计算了插值 HRTF 和测量 HRTF 之间的差异。然后通过接收者操作员特征 (ROC) 曲线将这些结果与听力测试的结果相关联。本研究的结果表明，对于从三个人头测量的 HRTF 集，使用从梅尔倒谱系数计算的失真测量获得了性能的最佳预测器，而与耳间时间延迟相关的失真测量可以相当好地预测 KEMAR HRTF 集的声音位置的可听差异。进行了可行性测试以验证所选失真测量的有用性。
In binaural synthesis, in order to realize more precise and accurate spatial sound, it would be desirable to measure a large number of the head-related transfer functions (HRTFs) in various directions. To reduce the size of the HRTFs, interpolation is often employed, where the HRTF for any direction can be obtained by a limited number of the representative HRTFs. In this paper, it is determined which distortion measure for interpolation of the HRTFs in the horizontal plane is most suitable for predicting audible differences in sound location. Four kinds of HRTF sets, measured using three human heads and one mannequin (KEMAR), were prepared for this study. Using various objective distortion criteria, the differences between interpolated and measured HRTFs were computed. These were then related to the results from the listening tests through receiver operator characteristic (ROC) curves. The results of the present study indicated that for the HRTF sets measured from three human heads, the best predictor of performance was obtained using the distortion measurement computed from the mel-cepstral coefficients, whereas the distortion measurement associated with interaural time delay predicted audible differences in sound location reasonably well for the KEMAR HRTF set. A feasibility test was conducted to verify the usefulness of the selected distortion measurement.
影响因子：
2.4
作者：
Kulkarni, A;Isabelle, SK;Colburn, HS
通讯作者：
Colburn, HS