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反响和双耳灵敏度对掩盖的空间释放的影响

Sara Momtaz¹, Brittany T Williams¹, Margaret K Miller¹

¹Center for Hearing Research, Boys Town National Research Hospital, Omaha, Nebraska 68131, USA.

The Journal of the Acoustical Society of America

|October 30, 2025

概括

反响显著减少了听力中掩盖 (SRM) 的空间释放. 对音声间时间差异 (ITD) 的个体灵敏度预测了对噪音的语音感知,即使SRM没有直接测量.

科学领域:

听觉神经科学听觉神经科学
语音感知语音感知
声学声学在声学方面

背景情况:

掩盖的空间释放 (SRM) 对于在杂环境中理解语音至关重要.
反响和个人的双耳灵敏度可以影响语音可理解性.
以前的研究表明,在反响条件下,SRM的减少.

研究的目的:

调查反响和双耳灵敏度对SRM的影响.
为了确定个人间声时间差 (ITD) 和间声水平差 (ILD) 的值是否能预测噪音中的语音接收.
评估共振如何影响语音接收值 (SRTs) 和SRM.

主要方法:

对40名听力正常的年轻人进行了语音识别任务.
该研究使用了一种适应性程序,在连续叙事语音面具中使用开放式句子目标.
条件包括无声和模拟的反响环境,具有不同的面罩空间配置. 针对ITD和ILD的歧视门分别进行了测量.

主要成果:

反响使SRT增加,SRM平均减少5.4dB.
个别ITD值与分离的SRT有显著的关联.
在ITD值和SRM之间没有发现显著的关联,可能是由于得分相互关联.

结论:

这些发现证实了在反响条件下SRM的减少,与之前的研究一致.
个人ITD灵敏度是噪音中的空间语音感知的一个重要预测因素.
仅专注于SRM可能会掩盖复杂的听觉环境中个体双耳灵敏度的预测价值.

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