Within-ear and across-ear interference in a cocktail-party listening task
Within-ear and across-ear interference in a cocktail-party listening task
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DOI：
10.1121/1.1512703
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发表时间：
2002-12-01
影响因子：
2.4
通讯作者：
Simpson, BD
中科院分区：
文献类型：
--
作者：
Brungart, DS;Simpson, BD
虽然许多研究人员已经表明，听众能够选择性地注意到一个目标语音信号时，掩蔽说话人是在同一只耳朵作为目标语音或掩蔽说话人是在不同的耳朵比目标语音，很少有人知道选择性听觉注意任务与目标说话人在一只耳朵和独立的掩蔽说话人在两个耳朵在同一时间。在这一系列的实验中，听众被要求对两个竞争的说话者之一在他们的右耳（目标）说出的目标语音信号做出反应，同时忽略他们左耳（无人看管）同时发出的掩蔽声。当无人看管的耳朵中的掩蔽声音是噪音时，听众能够在目标耳朵中分离出竞争的说话者，几乎和无人看管的耳朵中没有声音时一样好。然而，当无人看管的耳朵中的掩蔽声音是语音时，目标耳朵中的语音分离比无人看管的耳朵中没有声音时要差得多。当掩蔽声在无人值守的耳朵是时间反转，语音，语音分离时，只有当目标语音呈现在一个较低的水平比掩蔽语音在目标耳朵。这些结果表明，耳内和跨耳语音分离是密切相关的过程，不能同时进行时，在无人值守的耳朵的干扰声音是定性类似的语音。(C)2002年美国声学学会。
Although many researchers have shown that listeners are able to selectively attend to a target speech signal when a masking talker is present in the same ear as the target speech or when a masking talker is present in a different ear than the target speech, little is known about selective auditory attention in tasks with a target talker in one ear and independent masking talkers in both ears at the same time. In this series of experiments, listeners were asked to respond to a target speech signal spoken by one of two competing talkers in their right (target) ear while ignoring a simultaneous masking sound in their left (unattended) ear. When the masking sound in the unattended ear was noise, listeners were able to segregate the competing talkers in the target ear nearly as well as they could with no sound in the unattended ear. When the masking sound in the unattended ear was speech, however, speech segregation in the target ear was substantially worse than with no sound in the unattended ear. When the masking sound in the unattended ear was time-reversed, speech, speech segregation was degraded only when the target speech was presented at a lower level than the masking speech in the target ear. These results show that within-ear and across-ear speech segregation are closely related processes that cannot be performed simultaneously when the interfering sound in the unattended ear is qualitatively similar to speech. (C) 2002 Acoustical Society of America.