Physical factors in angular localization.
Physical factors in angular localization.
复制标题
角度定位中的物理因素。
作者：
B. Nordlund
这项调查的目的是为了澄清不同方位的耳朵之间产生的声学差异。声源放置在头部周围不同方位，频率分别为500、1000、2000、4000和8000 cps，声源距头部165 cm，测量了声音进入假头耳朵的时间、相位和强度差。结果表明，在0°~60°和120°~180°之间，时间差与方位角成线性函数关系。同样的情况也适用于相位差，如果以时间表示的话。强度的差异似乎是方位角的一个非常不规则的函数，在很大程度上与之前发表的结果不符。在物理测量和获得的数据的基础上讨论了定向听证的问题。
The investigation was carried out for the purpose of clarifying the acoustic differences which arise between the ears at different azimuths. Measurements of time, phase and intensity differences of the sound entering the ears of a dummy head were performed with the sound source placed at different azimuths around the head, and using the frequencies 500, 1000, 2000, 4000 and 8000 cps, with the sound source 165 cm from the head. The results indicate that the time difference constitutes a linear function of azimuth between the angles of 0°-60° and between 120°-180°. The same thing applies to the phase difference, if expressed in time. The difference in intensity appears to be a very irregular function of azimuth and has to a great extent failed to agree with previously published findings. The matter of directional hearing is discussed on the basis of physical measurements and data obtained.