Develop a new technique for measuring tongue and mandibular movement

有几种方法被用来观察言语中舌头和下颌骨的运动。然而，通过这些技术获得的数据是定量有限的，因为避免过度的X射线曝光和从图像分析数据的繁琐。本研究的目的是发展一种新的测量舌和下颌运动的方法并投入实际应用。该方法的基本原理是利用磁力计与放置在舌尖上的磁棒之间的距离变化引起的输出变化，将模拟数据转换成数字数据，并通过微机软件解释磁棒的位置。电脑声学数据与舌头和下颌运动同步。利用该系统，可以准确地测量舌和下颌骨的动态特性（位移、语音起始延迟、速度和累积位移），表明该测量装置对舌和下颌骨运动的无失真研究是有价值的，最高精度为5.3%，动态响应以速度换算约为500 cm/s。它是，然后，得出结论，这个新的系统是一个有用的技术，语音生理研究。

Several methods have been used to observe the tongue and mandibular movement in speech. However, data obtained by these techniques are quantitatively limited because of avoidance to excessive X-ray exposure and tediousness of analyzing data from the images. The purpose of this study is to develop a new technique for measuring tongue and mandibularmovement and to use actually.The basic principle of this method is to use the output changes induced in magnetmeters due to the changes of the distance between the magnetmeters and a magnetic rod placed on the tip of the tongue analog data obtained are converted into digital data and the position of the rod is interpreted by the software of micro computer. Acoustic data are synchronized with tongue and mandibular movement. By use of this system, the dynamic characteristics ( displacement, delay of phonetic onset, velocity and cumulative displacement) of tongue and mandibule can be exactly evaluated.It becomes clear that this measuring device is valuable for the investigation of tongue and mandibular movement without distortion and with accuracy of 5.3% at most, and dynamic response shows about 500 cm/s as a velocity converted. It is, then, concluded that this new system is a useful technique for physiological research of speech.