Perkell J S, Holmberg E B, Hillman R E
Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge 02139.
J Acoust Soc Am. 1991 Apr;89(4 Pt 1):1777-81. doi: 10.1121/1.401011.
A software system, implemented in the MITSYN languages, is described for signal processing and data extraction from oral airflow, intra-oral air pressure, vocal fold contact area (EGG) and sound pressure signals. Signal processing algorithms are specified in the form of block diagrams; examples are shown for demultiplexing signals into bandwidth-specific, time-aligned signal stream files and for inverse filtering the oral airflow waveform to obtain an approximation of the glottal airflow waveform. Interactive and algorithmic data extraction is performed with a menu-driven procedure that displays the stages of analysis, graphical indications of the results of algorithmically made decisions, and derived results. The system has proven to be useful for obtaining quantities of detailed data on voice production.
描述了一个用MITSYN语言实现的软件系统，用于从口腔气流、口腔内气压、声带接触面积（EGG）和声压信号中进行信号处理和数据提取。信号处理算法以框图的形式指定；展示了将信号解复用为特定带宽、时间对齐的信号流文件以及对口腔气流波形进行逆滤波以获得声门气流波形近似值的示例。交互式和算法式数据提取通过菜单驱动程序进行，该程序显示分析阶段、算法决策结果的图形指示以及派生结果。该系统已被证明对于获取语音产生的详细数据量很有用。
