Development of the analyzing system for oral function

我们已经开发了一个三维舌头运动测量系统，采用电磁传感系统，使用五个小而轻的线圈。该系统被用来测量和比较正常人和骨骼III类受试者在发音的五个日本元音（/a/，/I/，/u/，/e/和/o/）的声音舌头的运动。受试者以放松姿势坐在椅子上，受试者头部的位置使法兰克福水平面和地板大致平行。在开始实验之前，受试者在适当的测量设备下进行了足够的元音发音练习。对元音进行声学分析，研究其声学特性。受试者包括3名听力或发音无障碍的正常受试者（3名男性）和3名骨骼III类受试者（3名女性）。1)骨性安氏III类错患者的两个元音之间的距离： 关于我们 e在前后方向上大于正常受试者，但在垂直方向上小于正常受试者。2)骨性安氏III类错患者的元音与休止位置之间的距离大于正常人。3)两个元音之间的距离在横向上小于前后方向和垂直方向。4)第一共振峰频率和第二共振峰频率的频率分布在骨性安氏III类受试者中比正常受试者窄。本研究的结果表明，在语音生产过程中的骨骼III类患者的舌头的运动范围是较小的垂直方向和较大的前后方向相比，在正常人。骨性安氏III类错患者的五个元音发音点在垂直方向和前后方向上的面积均比正常人窄。少

We have developed a 3D tongue movement measuring sysytem employing an electromagnetic sensing system that, uses five small and lightweight coils. This system was used to measure and compare tongue movements in normal subjects and in skeletal Class III subjects during articuration of five Japanese vowel (/a/, /I/, /u/, /e/ and /o/) sounds. The subject sat in a relaxed postsure on a chair, and the subject's head was positioned so that the Frankfurt horizontal plane and floor were approximately parallel. Before commencing the experiment, the subject was given sufficient practice at pronouncing vowel sounds with measurement device in place. The vowel sounds were acoustieally analyzed to investigate the acoustic characteristics. The subjects included three normal subjects (3 males) who had no impairments in hearing or articulation and three skeletal Class III subjects (3 females).The following results were obtained. 1) The distances between two vowels in the skeletal Class III patients: wer … More e greater in the antero-posterior direction but smaller in the vertical direction compared to those in the normal subjects. 2) The distances between the vowel and rest position in the skeletal Class III patients were greater than those in the normal subjects. 3) The distances between two vowels were smaller in the lateral direction than in the antero-posterior direction and in the vertical direction. 4) The frequency distribution of the first formant frequency and the second frequency of five vowels in the skeletal Class III subjects were narrower than that in the normal subjects. The results of this study suggest that the movement range of the tongne during speech production in skeletal Class III patients is smaller in the vertical direction and larger in the antero-posterior direction compared to that in normal people. The areas of the point of articulation of the five vowels in the skeletal Class III patients were narrower than those in normal people in the vertical and antero-posterior direction. Less