由双边骨传导刺激引起的干扰模式损害了声音定位
Liu-Jie Ren1, Yi Yu2, Cheng Hua3
1FPRS Department / ENT Institute / NHC Key Laboratory of Hearing Medicine, Eye & ENT Hospital of Fudan University, Shanghai, 200031, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|June 10, 2025
概括
双边骨传导听力器的交叉声会通过引起波干扰来破坏空间听力. 这项研究建模并验证了这种干扰如何产生不典型的声音横向化,从而阻碍了助听器性能的改善.
科学领域:
- 听力学 听力学是指听力学.
- 生物医学工程 生物医学工程
- 声学 声学 在声学方面
背景情况:
- 双边骨导听器 (BCHD) 的目的是改善空间听力.
- 交叉通话,是对ILD和IPD等双耳声学线索的干扰,限制了BCHD的有效性.
- 了解交叉通话对于提高BCHDs的声音定位至关重要.
研究的目的:
- 开发双边骨传导 (BC) 中交叉的理论模型.
- 在BC下预测耳振动响应和声音侧面化模式.
- 通过实验验证模型,并调查交叉通话对空间听觉的影响.
主要方法:
- 基于波干扰和叠加的简化理论模型被开发出来.
- 尸体振动测量被用来验证预测的耳反应.
- 在健康的志愿者身上进行了精神声学声音横向化测试.
主要成果:
- 该模型准确地预测了受ILD和IPD影响的声音横向化模式.
- 观察到的横向化模式与已确定的空气导通 (AC) 原则有所不同.
- 实验验证证证实了交叉通话诱导的波干扰和在尾细胞的信号叠加.
结论:
- 双边BCHD的交声会导致头骨中的波干扰,导致非典型的声音侧向化.
- 与AC相比,这些影响对与BC设备相比的声音定位构成重大挑战.
- 解决交叉通话引起的波干扰是改善双边BCHD用户空间听觉的关键.
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