在使用听力保护 (L) 时,探索体育活动对大噪声中语音理解的影响
Shai Chordekar1, Eli Kurtzman1, Orlev Levy-Nissenbaum2
1Department of Communication Disorders, Acoustics and Noise Research Lab in the Name of Laurent Levy, Ariel University, Ariel 40700, Israel.
The Journal of the Acoustical Society of America
|August 4, 2025
概括
听力保护设备 (HPD) 通过阻断外部声音来改善大噪声中的语音理解. 然而,与HPD的身体活动可以增加内部噪音,影响整体听力结果.
科学领域:
- 听力学 听力学是指听力学.
- 职业健康 职业健康 职业健康
- 人类因素工程 人类因素工程
背景情况:
- 听力保护设备 (HPD) 对于在高噪音环境中预防噪音引起的听力损失至关重要.
- 在使用HPD时,同时进行体育活动对语音理解的影响仍然不完全理解.
- 了解这些综合效应对于优化职业和娱乐环境中的沟通至关重要.
研究的目的:
- 调查身体活动在佩戴听力保护设备 (HPD) 时对语音理解的影响.
- 在噪音,活动和HPD使用的不同条件下,为准确的语音感知所需的信号噪音比 (SNR) 量化.
主要方法:
- 41名参与者使用耳塞或耳罩进行了测试.
- 语音理解被评估在四个条件下:休息与/或没有HPD和中度活动与/或没有HPD.
- 主要指标是SNR,在95dB的SPL噪声环境中,语音可理解性准确度为50%.
主要成果:
- 听力保护设备通过减弱外部声音,在高噪音 (95 dB SPL) 中显著改善了语音理解.
- 在使用HPD时,体力活动导致内部噪声 (生理声音) 增加.
- 尽管内部噪声增加,但HPD在高噪声条件下仍然为语音感知提供了净好处.
结论:
- HPD具有双重效应:它们通过减少环境噪音来增强语音感知,但也可以放大内部生理声音.
- 这些发现强调了在评估HPD在体力炼期间的听力表现时考虑外部降噪和内部噪声产生的重要性.
- 优化HPD使用需要平衡降噪效益与潜在的自我噪声增加,以实现有效的通信.
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