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使用虚拟现实耳机在声音定位中的光谱权重的远程测量
Jwala P Rejimon1, Monica L Folkerts2, G Christopher Stecker1
1Center for Hearing Research, Boys Town National Research Hospital, Omaha, NE.
概括
带有电和声学 (EAS) 听力组合的听众可能会与双耳干扰作斗争. 这项研究使用虚拟现实测量了光谱权重函数 (SWF),揭示了EAS助听器如何处理声音线索.
科学领域:
- 听觉神经科学 听觉神经科学
- 精神声学是一种精神声学.
- 助听器技术 助听器技术
背景情况:
- 双耳干扰是由不同频率的听觉信息重量不平等引起的,可以损害听力,特别是在电声听力 (EAS) 听力组合的用户中.
- 了解光谱权重函数 (SWF) 对于优化助听器性能至关重要.
研究的目的:
- 在虚拟现实环境中使用模拟的EAS刺激来测量声音本地化期间的SWF.
- 调查竞争的听觉线索和时间分离对光谱权重的影响.
主要方法:
- 使用Oculus Quest 2耳机和Sennheiser HD 280 Pro耳机来实现远程,标准化的刺激呈现的虚拟现实.
- 模拟的EAS刺激与低频声噪声频段和高频电击列车,结合随机双耳声响.
- 通过将本地化响应统计回归到双声暗示值的计算SWF.
主要成果:
- SWF证实了之前报告的400-1000 Hz频率组件在听觉处理中的主导地位.
- 在声噪声和电动点击列车之间引入一个时间间隔,增加了对相邻频率组件的权重,表明干扰减少了.
- 对大多数参与者来说,竞争的声音位置减少了非目标组件的权重,表明对双耳干扰的潜在敏感性.
结论:
- 在EAS听力中,频谱权重受到听觉线索的频率,时间分离和空间分离的影响.
- 结果提供了对双耳干扰机制的见解,以及改善EAS听力设备算法的潜在目标.
- 通过SWF分析,可以识别对双耳干扰的个体敏感性.
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