Testing, correcting, and extending the Woodworth model for interaural time difference
Testing, correcting, and extending the Woodworth model for interaural time difference
复制标题
DOI：
10.1121/1.4861243
复制
发表时间：
2014-02-01
影响因子：
2.4
通讯作者：
Hartmann, William M.
中科院分区：
文献类型：
--
作者：
Aaronson, Neil L.;Hartmann, William M.
两耳时差的Woodworth模型和公式经常被用作人类和其他动物双耳听觉的生理和心理声学研究的标准。这是一个频率无关的，光线跟踪模型的刚性球头，预计同意的高频限制的一个确切的衍射模型。Woodworth模型的对跖耳和入射平面波的预测在这里进行比较的准确模型的预测作为频率的函数，以量化的差异时，频率不高。在第二个计算中，Woodworth模型扩展到任意耳角，平面波入射和有限的点源距离。扩展的Woodworth模型在由耳角和源距定义的六个不同区域中得到不同的公式。值得注意的是，在伍德沃思的著名功能的特点尖来自忽略较长的两个路径周围的头部的情况下，较长的路径实际上是重要的。这个错误很容易纠正。(C)2014年美国声学学会。
The Woodworth model and formula for interaural time difference is frequently used as a standard in physiological and psychoacoustical studies of binaural hearing for humans and other animals. It is a frequency-independent, ray-tracing model of a rigid spherical head that is expected to agree with the high-frequency limit of an exact diffraction model. The predictions by the Woodworth model for antipodal ears and for incident plane waves are here compared with the predictions of the exact model as a function of frequency to quantify the discrepancy when the frequency is not high. In a second calculation, the Woodworth model is extended to arbitrary ear angles, both for plane-wave incidence and for finite point-source distance. The extended Woodworth model leads to different formulas in six different regions defined by ear angle and source distance. It is noted that the characteristic cusp in Woodworth's well-known function comes from ignoring the longer of the two paths around the head in circumstances when the longer path is actually important. This error can be readily corrected. (C) 2014 Acoustical Society of America.