Cocktail party listening in a dynamic multitalker environment
Cocktail party listening in a dynamic multitalker environment
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DOI：
10.3758/bf03194455
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发表时间：
2007-01-01
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影响因子：
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通讯作者：
Simpson, Brian D.
中科院分区：
文献类型：
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作者：
Brungart, Douglas S.;Simpson, Brian D.
关于目标说话者位置的先验信息在鸡尾酒会听力任务中起着至关重要的作用，但在听者对目标语音的位置有一定了解但在听到刺激之前不知道目标语音的确切位置的情况下，人们对不完全空间信息的影响知之甚少。在这项研究中，通过调整多个说话者刺激中的目标说话者在每次试验结束时改变位置的概率，改变了空间不确定性。结果表明，听者可以根据动态声学环境的统计特性调整他们的策略，但这种适应是一个相对缓慢的过程，可能需要数十次试验才能完成。
A priori information about the location of the target talker plays a critical role in cocktail party listening tasks, but little is known about the influence of imperfect spatial information in situations in which the listener has some knowledge about the location of the target speech but does not know its exact location prior to hearing the stimulus. In this study, spatial uncertainty was varied by adjusting the probability that the target talker in a multitalker stimulus would change locations at the end of each trial. The results show that listeners can adapt their strategies according to the statistical properties of a dynamic acoustic environment but that this adaptation is a relatively slow process that may require dozens of trials to complete.