Variability in vowel formant frequencies of children with cerebral palsy

Li Mei Chen, Yung Chieh Lin, Wei Chen Hsu, Fang Hsin Liao

研究成果: Conference contribution

摘要

Cerebral palsy (CP) is a developmental motor disorder and the study of the speech characteristics and developmental speech patterns may provide valuable information on early speech development. Vowels appear early in speech development and they are central to the understanding of the acoustic properties of speech. Therefore, the current study aimed to examine the differences of vowel formant frequencies among five children with cerebral palsy in different severity ranging from ages 3 to 7. First and second vowel formants (F1 and F2) were measured to investigate: 1) the changes of the F1 and F2 values, 2) vowel space, and 3) the vowel space area in CP children of different ages and severity. The major findings are: 1) There was no obvious decline in F2 values from 3 to 7 years old, which indicated delayed speech development; 2) The overlapping ellipses of all vowel spaces illustrated unstable motor control in all the five children; and 3) The five CP children had centralized corner vowels and there was no expansion of vowel spaces at different ages. This indicated their limited motor control.

原文English
主出版物標題Proceedings of the 25th Conference on Computational Linguistics and Speech Processing, ROCLING 2013
發行者The Association for Computational Linguistics and Chinese Language Processing (ACLCLP)
頁面260-267
頁數8
ISBN(電子)9789573079262
出版狀態Published - 2013 十月 1
事件25th Conference on Computational Linguistics and Speech Processing, ROCLING 2013 - Kaohsiung, Taiwan
持續時間: 2013 十月 42013 十月 5

出版系列

名字Proceedings of the 25th Conference on Computational Linguistics and Speech Processing, ROCLING 2013

Conference

Conference25th Conference on Computational Linguistics and Speech Processing, ROCLING 2013
國家/地區Taiwan
城市Kaohsiung
期間13-10-0413-10-05

All Science Journal Classification (ASJC) codes

  • 言語和聽力
  • 語言與語言學

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