ABSOLUTE AND RELATIVE CUES FOR THE AUDITORY-PERCEPTION OF EGOCENTRIC DISTANCE
ABSOLUTE AND RELATIVE CUES FOR THE AUDITORY-PERCEPTION OF EGOCENTRIC DISTANCE
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DOI：
10.1068/p080311
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发表时间：
1979-01-01
期刊：
影响因子：
1.7
通讯作者：
BOWERS, JN
中科院分区：
文献类型：
--
作者：
MERSHON, DH;BOWERS, JN
进行了三个实验，以检查混响线索自我中心的听觉距离，并确定在何种程度上，这样的线索可以提供“绝对”，与“相对”，距离的信息。在实验1中，在一个普通的硬墙房间中，在五个不同的距离（0·55到8 m）的扬声器中的一个处，向独立的被蒙住眼睛的观察者组（共200人）呈现宽带噪声。每组观察者中有一半人在0度方位角听到声音，然后（延迟一段时间后）在90度方位角听到相同的声音。其余观察员的陈述顺序相反。感知距离变化显着的物理距离的功能，扬声器，即使是第一次演示。0度和90度呈现之间双耳信息的变化没有显著改变结果。对于这两个方向，近距离被高估，远距离被低估。实验2和3的目的是评估有多少事先听觉暴露的实验室环境是必要的。一个200赫兹的方波信号，从三个距离（1，2，或6米）的观察员谁拥有最少的房间信息或曝光，其中包括在房间内说话。感知距离变化显着的物理距离，无论暴露条件。
Three experiments were performed to examine the reverberation cue to egocentric auditory distance and to determine the extent to which such a cue could provide ‘absolute’, as contrasted with ‘relative’, information about distance. In experiment 1 independent groups of blindfolded observers (200 altogether) were presented with broadband noise from a speaker at one of five different distances (0·55 to 8 m) in a normal hard-walled room. Half of each group of observers were presented with the sound at 0 deg azimuth, followed (after a delay) by the identical sound at 90 deg azimuth. The order of presentation was reversed for the remaining observers. Perceived distance varied significantly as a function of the physical distance to the speaker, even for the first presentations. The change in the binaural information between the 0 deg and 90 deg presentations did not significantly modify the results. For both orientations, near distances were overestimated and far distances were underestimated. Experiments 2 and 3 were designed to evaluate how much prior auditory exposure to the laboratory environment was necessary. A 200 Hz square-wave signal was presented from one of three distances (1, 2, or 6 m) to observers who had either minimal room information or an exposure which included talking within the room. Perceived distance varied significantly with physical distance regardless of exposure condition.