在合成喉模型上对人类语音中的声学反合的调查
Christoph Näger1, Stefan Kniesburges2, Bogac Tur2
1Institute of Fluid Mechanics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstraße 4, 91058 Erlangen, Germany.
Bioengineering (Basel, Switzerland)
|December 23, 2023
概括
声道中的声学静止波可以通过与声振荡的合来增强语音产生. 这种现象改善了语音质量,效率和语音持续时间.
科学领域:
- 声学 声学 在声学方面
- 流体动力学 流体动力学
- 生物工程是生物工程.
背景情况:
- 声道内的声学静止波在人类发声过程中影响着喉液流动和声振动.
- 了解声学反合对于解释语音生成机制至关重要.
研究的目的:
- 为了量化人类声调过程中的声学反合.
- 为了研究声道共振和声振荡之间的关系.
主要方法:
- 高速粒子图像速度测量 (PIV) 用于在合成喉模型中记录supraglottal流场.
- 声源术语是从速度场计算出来的.
- 麦克风测量捕获了远场声音辐射,高速摄像头记录了声振荡.
主要成果:
- 声振荡频率与声道共振频率 (f-f-coupling) 在共振附近同步.
- 在f-f合过程中,空中声学声音生成效率显著提高.
- 声效率,信号与噪声比,声与噪声比,以及声峰值的突出程度都得到了提高.
结论:
- F-f-coupling可以提高语音质量和语音效率.
- 这种合减少了稳定的声振荡所需的喉体积流量.
- 呈现f-f合的个体可以更长时间地维持声调,并具有优越的语音质量.
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