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首页> 外文期刊>Ergonomics >Localizable auditory warning pulses.
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Localizable auditory warning pulses.

机译：可定位的听觉警告脉冲。

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摘要

Three important forms of information available to the listener may be identified in any auditory warning: what (semantic), where (location) and when (perceived urgency). Each form is addressed in the present design study of auditory warning pulses. Recordings were made via a dummy head, and were presented dichotically to listeners in a left/right localization task. The first experiment identified a suitable notched noise component for providing location information in the pulse stimulus. The second experiment required participants to simultaneously identify a distinct tonal signature and the location of the sound when they were presented with one of three tonal types, or one of three compound (tone plus noise) stimuli. Response accuracy and response latency for this identification and localization task were significantly better with the compound than with tone alone stimuli. Perceived urgency of compound complex tone plus noise stimuli was investigated in the third experiment. While there may be a trade-off between localization acuity and perceived urgency, the addition of noise components to the auditory warning pulse was shown to enhance the location information available to the listener. It is suggested that some auditory warning designs will benefit from the simultaneous provision of what and where forms of information in the sounds.
机译：可以在任何听觉警告中识别出可供收听者使用的三种重要信息形式：什么（语义），何处（位置）和何时（感知到的紧迫感）。在当前的听觉警告脉冲设计研究中讨论了每种形式。录音是通过一个虚拟的头来进行的，并在向左/向右的本地化任务中分两次呈现给听众。第一个实验确定了合适的陷波噪声分量，用于在脉冲刺激中提供位置信息。第二个实验要求参加者同时受到三种音调类型之一或三种复合（音加噪声）刺激之一的同时识别明显的音调特征和声音的位置。该化合物的识别和定位任务的响应准确性和响应潜伏期比单独使用声调刺激要好得多。在第三个实验中研究了复合复调加噪声刺激的感知紧迫性。虽然在定位敏锐度和感知到的紧迫性之间可能需要权衡取舍，但已显示在听觉警告脉冲中添加噪声成分可增强听众可用的位置信息。建议某些听觉警告设计将从声音中信息的形式和位置同时提供中受益。

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