改进了触觉语音感知,使用音频到触觉感官替代与形成频率聚焦
Mark D Fletcher1,2, Esma Akis3,4, Carl A Verschuur3
1University of Southampton Auditory Implant Service, University of Southampton, University Road, Southampton, SO17 1BJ, UK. M.D.Fletcher@soton.ac.uk.
Scientific reports
|February 28, 2024
概括
触觉助听器使用触觉刺激来发声. 在对触觉语音编码器的研究中,将音频过器专注于形式频率,使得母音的区分提高了8%.
科学领域:
- 听觉神经科学 听觉神经科学
- 生物医学工程 生物医学工程
- 人与计算机的交互
背景情况:
- 触觉助听器为听力损失提供了一个替代方案,通过触觉刺激提供语音.
- 触觉执行器技术的进步为可穿戴设备提供了新的音频到触觉转换策略.
- 当前的触觉声编码器策略有效地传达了一些语音信息,但与元音和阻碍辅音作斗争.
研究的目的:
- 为了调查在触觉语音编码器中优化音频过器焦点是否可以增强语音感知.
- 测试聚焦过器在形成频率周围对母音区分的影响.
- 评估聚焦过器在中高频段是否能改善阻塞辅音的区别.
主要方法:
- 开发了一种触觉语音编码器策略,将音频过到八个频段.
- 调制频段的振幅包裹,以控制手腕上的振动振幅.
- 在20名正常触摸感知的参与者中测试了两种过器聚焦方法.
主要成果:
- 以阻碍物为重点的过方法并没有改善辅音歧视.
- 将波器聚焦在第一和第二形式频率周围,使得母音区分提高了8%.
- 总体而言,在以形式为重点的方法中,辅音歧视没有改变.
结论:
- 一个以形式为重点的触觉声编码器策略显著增强了母音歧视.
- 这种方法可以在紧的可穿戴设备上实时实现.
- 以形式为重点的触觉助听器可以显著改善用户的语音感知.
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