Interpolating head related transfer functions in the median plane

Proceedings of the 1999 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics. WASPAA'99 (Cat. No.99TH8452) Pub Date : 1999-10-17 DOI:10.1109/ASPAA.1999.810876

Takanori Nishino, S. Kajita, K. Takeda, F. Itakura

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引用次数: 50

Abstract

This paper describes the interpolation of head related transfer functions (HRTFs) for all direction in the median plane. The interpolation of HRTFs enables us to reduce the number of measurements for new user's HRTFs, and also reduce the data of HRTFs in auditory virtual systems. In this paper, a simple linear interpolation method and the spline interpolation method are evaluated and advantages of both methods clarified. In experiments, the interpolation methods are applied to HRTFs measured using a dummy head. The experimental results show that the two methods are comparable in the best case. The resultant minimum spectral distortion is about 2 dB for both methods. The results clarify that the linear interpolation is effective for a set of elevations selected based on the cross correlation and that the spline interpolation is effective at large and equal intervals. These results indicate that HRTFs in the median plane can be interpolated by the methods.

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在中位数平面内插值头部相关的传递函数

本文描述了头部相关传递函数(hrtf)在中位平面各方向上的插值。hrtf的插值使我们能够减少对新用户hrtf的测量次数，也减少了听觉虚拟系统中hrtf的数据。本文对简单线性插值法和样条插值法进行了评价，并阐明了两种方法的优点。在实验中，将插值方法应用于假头测量的HRTFs。实验结果表明，在最佳情况下，两种方法具有可比性。两种方法得到的最小频谱失真约为2db。结果表明，线性插值对基于相互关系选择的一组高程是有效的，而样条插值在大而等的间隔是有效的。结果表明，该方法可以对中位数平面的hrtf进行插值。

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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来源期刊

Proceedings of the 1999 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics. WASPAA'99 (Cat. No.99TH8452)

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