Contrasting monaural and interaural spectral cues for human sound localization
Contrasting monaural and interaural spectral cues for human sound localization
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DOI：
10.1121/1.1736649
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发表时间：
2004-06-01
影响因子：
2.4
通讯作者：
van Schaik, A
中科院分区：
文献类型：
--
作者：
Jin, C;Corderoy, A;van Schaik, A
描述了一个人类心理声学实验，研究了单耳和耳间频谱线索在人类声音定位中的作用。特别地，它集中于单耳与耳间频谱线索对分辨混淆锥内的方向的相对贡献（即，具有相似耳间时间和水平差异线索的方向）。宽带刺激呈现在虚拟空间中从76个大致等距的位置周围的听众。在实验条件下，在左鼓膜处呈现“假”平坦谱。然后调整右耳膜处的声谱，以便保留真正的右单耳频谱或真正的耳间频谱。在这两种情况下，总的耳间时间差和总的耳间水平差保持在其自然值。这些虚拟的声音刺激，声音定位性能的四个人类受试者进行了检查。本地化性能的结果表明，无论是保留的耳间频谱差异线索，也没有保留的右单耳频谱线索是不够的，以保持准确的海拔高度的判断，在存在一个平坦的单耳频谱在左鼓膜。本地化结果的解释给出的相对光谱信息可用于解决方向内的一个锥的混乱。(C)2004年，美国声学学会。
A human psychoacoustical experiment is described that investigates the role of the monaural and interaural spectral cues in human sound localization. In particular, it focuses on the relative contribution of the monaural versus the interaural spectral cues towards resolving directions within a cone of confusion (i.e., directions with similar interaural time and level difference cues) in the auditory localization process. Broadband stimuli were presented in virtual space from 76 roughly equidistant locations around the listener. In the experimental conditions, a "false" flat spectrum was presented at the left eardrum. The sound spectrum at the right eardrum was then adjusted so that either the true right monaural spectrum or the true interaural spectrum was preserved. In both cases, the overall interaural time difference and overall interaural level difference were maintained at their natural values. With these virtual sound stimuli, the sound localization performance of four human subjects was examined. The localization performance results indicate that neither the preserved interaural spectral difference cue nor the preserved right monaural spectral cue was sufficient to maintain accurate elevation judgments in the presence of a flat monaural spectrum at the left eardrum. An explanation for the localization results is given in terms of the relative spectral information available for resolving directions within a cone of confusion. (C) 2004 Acoustical Society of America.