一种声门气流体积速度估计的新方法  

A New Estimation Method of Glottal Flow

作　　者：王素品[1] 鞠烽炽[1] 万明习[1] 赵守国[1] 邹原[1] 刘国涛[1] 

机构地区：[1]西安交通大学生物医学工程系,西安710049

出　　处：《仪器仪表学报》2001年第5期543-546,共4页Chinese Journal of Scientific Instrument

基　　金：国家自然科学基金资助项目 (69871 0 2 3)

摘　　要：讨论了一种用半导体微型压力传感器测量声门上下压力梯度 ,以此来估计声门气流体积速度的方法。该技术可比测量口腔输出气流的反滤波法得到更可靠和更准确的结果。借助于压力梯度测量流速的原理 ,通过动物实验、人体实验证实了该方法的有效性 ,并给出了实验结果。这一探索性工作对发声生理和物理的基础研究有重要价值。In this article, a flow measurement technique is described that differs from the more usual inverse filtering approach to the extent that the flow is not measured at mouth, but in subglottal and supraglottal tract. The technique is based on the measurement of pressure gradient using semiconductor miniature pressure transducer. The experiment results in vivo and human show that the gradient method yields more valid and reliable estimates of the shape of the glottal flow waveform than the inverse filtering. Specifically the analysis of those waveforms appears to lead to new insight into the physical and physiological processes underlying voice production.

关 键 词：声带振动 噪音源 反滤波 压力梯度 声门气流体积速度 

分 类 号：TN912.3[电子电信—通信与信息系统]