调制增强方案对在空间噪声中的语音识别在正常听觉的年轻成年人之间的影响
Vibha Kanagokar1, M A Yashu2, Jayashree S Bhat3
1Department of Audiology and Speech Language Pathology, Kasturba Medical College Mangalore, Manipal Academy of Higher Education, Manipal, India.
Audiology research
|February 20, 2026
概括
增强时膜 (ENV) 在正常听觉的成年人中显著改善了掩盖 (SRM) 和双耳处理的空间释放,特别是在杂的环境中. 这种技术可以提高语音理解,并有助于听力康复.
科学领域:
- 听觉神经科学 听觉神经科学
- 语音感知 语音感知
- 精神声学是一种精神声学.
背景情况:
- 在噪音中的语音理解取决于时细结构 (TFS) 和时膜 (ENV) 线索.
- ENV线索可以帮助间隔时间差 (ITD) 处理,特别是当TFS被降解时.
- 对ENV增强对掩盖 (SRM) 和双耳处理的空间释放的影响尚未完全理解.
研究的目的:
- 评估ENV增强对正常听觉的年轻成年人SRM的影响.
- 调查ENV增强对ITD灵敏度和interaural coherence (IC) 的影响.
主要方法:
- 测试了30名正常听觉的坎纳达语说者,他们在不同SNR的多说者喋喋不休中使用坎纳达语句.
- 刺激呈现出有和没有ENV增强的刺激,空间化在不同的近视角.
- 分析了语音识别分数;计算了SRM,并通过交叉相关性分析估计了ITD和IC.
主要成果:
- 在所有SNR和空间区分上,ENV增强显著增加了SRM.
- 益处在较低的SNR和更宽的目标面具分离处最为明显.
- 随着ENV增强,观察到增强的IC和更可靠的ITD估计,特别是在中度SNR时.
结论:
- 时间ENV增强改善了正常听力成年人的空间揭示和双耳定时线索.
- 在不利的听力条件下,这些好处尤其显著.
- 研究结果表明,在听力康复和听力技术方面有潜在的应用.
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