混乱
声学
语音识别
计算机科学
信号(编程语言)
极地的
宽带
物理
电信
心理学
精神分析
程序设计语言
天文
作者
Virginia Best,Simon Carlile,Craig Jin,André van Schaik
出处
期刊:Journal of the Acoustical Society of America
[Acoustical Society of America]
日期:2005-07-01
卷期号:118 (1): 353-363
被引量:116
摘要
This study measured the accuracy with which human listeners can localize spoken words. A broadband (300 Hz-16 kHz) corpus of monosyllabic words was created and presented tolisteners using a virtual auditory environment. Localization was examined for 76 locations ona sphere surrounding the listener. Experiment 1 showed that low-pass filtering the speech sounds at 8 kHz degraded performance, causing an increase in polar angle errors associated with the cone of confusion. In experiment 2 it was found that performance in fact varied systematically with the level of the signal above 8 kHz. Although the lower frequencies (below 8 kHz) are known to be sufficient for accurate speech recognition in most situations, these results demonstrate that natural speech contains information between 8 and 16 kHz that is essential for accurate localization.
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