调制方法和呈现部分对远距离呈现的骨导向超声波感知的影响
概括
骨导超声波 (BCU) 可以通过身体振动传递语音. 这项研究发现,通过远程呈现的BCU来感知语音取决于振动位置和振幅调制方法,为新型音频设备的开发提供了信息.
科学领域:
- 声学 声学 在声学方面
- 生物医学工程 生物医学工程
- 人与计算机的交互
背景情况:
- 骨导超声波 (BCU) 通过振幅调制传递语音,可以在身体上远远地感知到.
- 远程呈现的BCU是选择性音频设备的潜在技术,用户触摸振动器.
研究的目的:
- 评估刺激的放置如何影响远距离呈现的BCU的感知.
- 通过使用BCU调查振幅调制方法对语音可理解性的影响.
主要方法:
- 测量了远距离BCU的外部听觉介质和听觉值中的振动加速度.
- 通过使用不同的振幅调制技术 (DSB-TC,转换,DSB-SC,SSB) 评估了日本单音节的发音.
主要成果:
- 超声波衰减随着更复杂的呈现部分而增加;远距离之外的因素影响了前臂BCU感知.
- 广度调制方法显著影响了语音感知,DSB-TC和Transposed产生了更高的口音得分.
结论:
- 刺激的放置和调制方法是有效的远程BCU音频传输的关键因素.
- 这些发现为开发使用远程呈现的BCU技术的新型音频设备提供了宝贵的见解.
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