Assessing auditory distance perception using virtual acoustics
Assessing auditory distance perception using virtual acoustics
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DOI：
10.1121/1.1458027
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发表时间：
2002-04-01
影响因子：
2.4
通讯作者：
Zahorik, P
中科院分区：
文献类型：
--
作者：
Zahorik, P
在大多数自然发生的情况下，到达收听者耳朵的声音的多个声学特性随着声源距离的改变而改变。由于这些声学特性或线索中的许多可能与源和环境的声学特性的变化混淆，因此有助于距离定位的感知过程可能联合收割机并加权多个线索，以便产生声源距离的稳定估计。在这里，这个线索加权过程的心理检查，使用虚拟声学的方法，允许精确的测量和控制的声学线索被认为是突出的距离感知在一个有代表性的大房间环境。虽然听者对声源距离的判断被发现一致地和指数地低估了真实距离，但是分配给两个主要距离线索（强度和直达混响能量比）的感知权重作为声源类型（噪声和语音）和角度位置（相对于中间平面0度和90度）的函数而显著变化。这些结果表明，线索加权过程是灵活的，并能够适应个人的距离线索，不同的源属性和环境条件的结果。(C)2002年美国声学学会。
In most naturally occurring situations, multiple acoustic properties of the sound reaching a listener's ears change as sound source distance changes. Because many of these acoustic properties, or cues, can be confounded with variation in the acoustic properties of the source and the environment, the perceptual processes subserving distance localization likely combine and weight multiple cues in order to produce stable estimates of sound source distance. Here, this cue-weighting process is examined psychophysically, using a method of virtual acoustics that allows precise measurement and control of the acoustic cues thought to be salient for distance perception in a representative large-room environment. Though listeners' judgments of sound source distance are found to consistently and exponentially underestimate true distance, the perceptual weight assigned to two primary distance cues (intensity and direct-to-reverberant energy ratio) varies substantially as a function of both sound source type (noise and speech) and angular position (0degrees and 90degrees relative to the median plane). These results suggest that the cue-weighting process is flexible, and able to adapt to individual distance cues that vary as a result of source properties and environmental conditions. (C) 2002 Acoustical Society of America.