使用高速视频耳鼻喉镜和电子耳鼻镜检查有和没有振动的唱歌
Isabella Gantner1, Sophia Gantner1, Marie Köberlein1,2
1Division of Phoniatrics and Pediatric Audiology, Department of Otorhinolaryngology, University Hospital, LMU Munich, Marchioninistrasse 15, 81377 Munich, Germany.
这项研究揭示了歌唱中的振动涉及特定的声振荡模式和形软骨运动. 这些生物力学变化会影响声压水平和振动声调期间的基本频率调制.
科学领域:
- 职业生物力学 职业生物力学
- 唱歌生理学 唱歌生理学
- 喉成像检查 喉成像检查
背景情况:
- 振动是古典歌唱的关键组成部分.
- 了解振动的生物力学对于声学教学和临床语音评估至关重要.
- 之前的研究已经探索了振动声的声学相关性,但详细的喉生物力学仍然不太了解.
研究的目的:
- 在专业歌手中研究振动声和非振动声之间的生物力学差异.
- 在振动过程中描述声振荡模式和形软骨运动.
- 为了将喉运动与声学参数相关联.
主要方法:
- 十位专业歌手表演了带有和没有振动的持续元音.
- 数据采集使用声学记录,电造影 (EGG) 和跨鼻高速视频内镜.
- 分析包括喉区域波形 (GAW),基本频率 (fo) 和3D形软骨跟踪.
主要成果:
- 在振动声和非振动声声之间,开放系数 (OQ) 或闭合系数 (ClQ) 没有显著差异.
- 与最大相比,在振动基本频率 (fo) 最低值时观察到更高的OQ.
- 振动与较低的塞普斯特拉峰突出度,更高的声压水平 (SPL) 和反向的SPL-fo调制相关.
- 形软骨的运动显示了垂直和水平的组成部分,可能与甲状腺肌肉活动有关.
结论:
- 振动声调涉及不同的声振荡动态和喉运动.
- 状软骨的运动可能与振动机制有关,可能受到甲状腺肌肉参与的影响.
- 研究结果提供了关于歌唱振动背后复杂生物力学的见解.
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