Prosek R A, Montgomery A A, Walden B E, Hawkins D B
Army Audiology and Speech Center, Walter Reed Army Medical Center, Washington, DC 20307-5001.
J Speech Hear Res. 1987 Sep;30(3):301-5. doi: 10.1044/jshr.3003.301.
The formant frequencies of 15 adult stutterers' fluent and disfluent vowels and the formant frequencies of stutterers' and nonstutterers' fluent vowels were compared in an F1-F2 vowel space and in a normalized F1-F2 vowel space. The results indicated that differences in formant frequencies observed between the stutterers' and nonstutterers' vowels can be accounted for by differences among the vocal tract dimensions of the talkers. In addition, no differences were found between the formant frequencies of the fluent and disfluent vowels produced by the stutterers. The overall pattern of these results indicates that, contrary to recent reports (Klich & May, 1982), stutterers do not exhibit significantly greater vowel centralization than nonstutterers.
在F1-F2元音空间和归一化的F1-F2元音空间中，对15名成年口吃者的流畅元音和不流畅元音的共振峰频率，以及口吃者和非口吃者的流畅元音的共振峰频率进行了比较。结果表明，口吃者和非口吃者元音之间观察到的共振峰频率差异，可以通过说话者声道尺寸的差异来解释。此外，口吃者产生的流畅元音和不流畅元音的共振峰频率之间没有发现差异。这些结果的总体模式表明，与最近的报告（Klich & May，1982）相反，口吃者并不比非口吃者表现出明显更大的元音集中化。
