...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The European Journal of Neuroscience >Contribution of binaural masking release to improved speech intelligibility for different masker types
【24h】

Contribution of binaural masking release to improved speech intelligibility for different masker types

机译：双耳掩蔽释放的贡献改进了不同掩蔽类型的语音清晰度

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In situations with competing talkers or in the presence of masking noise, speech intelligibility can be improved by spatially separating the target speaker from the interferers. This advantage is generally referred to as spatial release from masking, and different mechanisms have been suggested to explain it. One proposed mechanism to benefit from spatial cues is the binaural masking release, which is purely stimulus-driven. According to this mechanism, the spatial benefit results from differences in the binaural cues of target and masker, which need to appear simultaneously in time and frequency to improve the signal detection. In an alternative proposed mechanism, the differences in the interaural cues improve the segregation of auditory streams, a process, which involves top-down processing rather than being purely stimulus-driven. Other than the cues that produce binaural masking release, the interaural cue differences between target and interferer required to improve stream segregation do not have to appear simultaneously in time and frequency. This study is concerned with the contribution of binaural masking release to spatial release from masking for three masker types that differ with respect to the amount of energetic masking they exert. Speech intelligibility was measured, employing a stimulus manipulation that inhibits binaural masking release and analysed with a metric to account for the number of better-ear glimpses. Results indicate that the contribution of the stimulus-driven binaural masking release plays a minor role while binaural stream segregation and the availability of glimpses in the better ear had a stronger influence on improving the speech intelligibility.
机译：在竞争对手讲话者或存在掩蔽噪声的情况下，通过在空间将目标扬声器与干扰源分开来改善语音清晰度。这种优点通常被称为掩蔽的空间释放，并提出了不同的机制来解释它。一种从空间提示中受益的一个提出机制是双耳掩蔽释放，纯粹刺激驱动。根据该机制，空间效益来自目标和掩蔽的双耳卷曲的差异，这需要在时间和频率上同时出现以改善信号检测。在替代提出的机制中，互连提示的差异改善了听觉流的分离，这一过程涉及自上而下处理而不是纯粹刺激驱动。除了产生双耳掩蔽释放的提示之外，需要在改善流分离所需的目标和干扰之间的互连差异不必在时间和频率上同时出现。本研究涉及双耳掩模释放对三种掩蔽类型的掩蔽掩蔽的空间释放的贡献，这与它们发挥的能量掩蔽量不同。测量语音可懂度，采用刺激操作，抑制双耳掩蔽释放并用度量分析，以解释更好的耳朵瞥见。结果表明，刺激驱动的双耳掩蔽释放的贡献在较好的耳朵中的双耳流偏析和瞥见的可用性对改善语音清晰度的影响力方面发挥了较小的作用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号