在预测语音产生时评估一维喉流模型的准确性:与实验和三维流模拟进行比较
Tsukasa Yoshinaga1, Zhaoyan Zhang2
1Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan.
概括
一维 (1D) 喉流模型充分预测声振动和语音产生,尽管与3D模型相比存在微小的差异. 这支持其用于语音模拟的效率.
科学领域:
- 声学 声学 在声学方面
- 生物工程是生物工程.
- 流体动力学 流体动力学
背景情况:
- 音调模型通常将口流简化为1D,以提高计算效率.
- 之前的研究表明,1D模型可以通过简化语音折叠模型来预测语音产生.
- 有现实的3D声振动的1D模型的准确性尚未完全理解.
研究的目的:
- 评估1D喉流模型在预测声振动和语音产生方面的准确性.
- 将1D模型预测与实验数据和3D纳维尔-斯托克斯流动模型进行比较,以获得现实的3D声振动.
主要方法:
- 用实验数据比较一个1D流模型.
- 一个1D球流模型与一个3D纳维埃-斯托克斯可压缩流模型的比较.
- 分析声振动模式,位移和喉流动特征.
主要成果:
- 1D流模型显示了类似于实验和3D模拟结果的振动模式.
- 1D模型预测的声位位移和喉流动波动略大于3D模型.
- 3D流量模型在关闭阶段捕获了显著的前后压力变化,而1D模型错过了这些变化.
结论:
- 一维状流量模型充分复制了正常发音的主要空气动力学和振动特征.
- 尽管存在差异,但1D模型的效率支持其在语音模拟中的使用.
- 这项研究验证了1D流模型对高效语音制作建模的实用性.
相关概念视频
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