THE INFLUENCE OF SPEAKING RATE ON VOWEL SPACE AND SPEECH-INTELLIGIBILITY FOR INDIVIDUALS WITH AMYOTROPHIC-LATERAL-SCLEROSIS
THE INFLUENCE OF SPEAKING RATE ON VOWEL SPACE AND SPEECH-INTELLIGIBILITY FOR INDIVIDUALS WITH AMYOTROPHIC-LATERAL-SCLEROSIS
复制标题
DOI：
10.1044/jshr.3805.1001
复制
发表时间：
1995-10-01
期刊：
影响因子：
--
通讯作者：
WEISMER, G
中科院分区：
文献类型：
--
作者：
TURNER, GS;TJADEN, K;WEISMER, G
对9例肌萎缩侧索硬化症(ALS)患者和9例年龄、性别相匹配的对照组的语速、元音间隙面积和语言清晰度之间的关系进行了研究。受试者以三种语速阅读标准短文(《农场通道》)，包括习惯语速、快语速和慢语速。在每个发音速率下，从包含元音/i/、/ae/、/a/和/u/的选定单词中测量元音片段持续时间和目标共振峰频率。为了量化不同发音速度下元音空间面积的变化，计算了每个说话人在每个发音速度下的元音四边形面积。此外，还获得了发音障碍者在每种发音速率下的清晰度估计。结果表明，与神经功能正常的说话者相比，构音障碍说话者的元音空间面积较小，元音空间随发音速度的变化也较少。在一项元音空间面积与语音清晰度之间的关系的研究中，发现元音空间可以解释语音清晰度的45%的变异。这一结果表明，元音空间面积是语音清晰度全局估计的重要组成部分。
The relationship between speaking rate, vowel space area, and speech intelligibility was studied in a-group of 9 subjects with amyotrophic lateral sclerosis (ALS) and 9 age- and gender-matched controls. Subjects read a standard passage (the Farm-Passage) at three speaking rates, including HABITUAL, FAST, and SLOW. Vowel segment durations and target formant-frequencies were measured at each speaking rate from select words containing the vowels /i/, /ae/, /a/, and /u/. To quantify changes in vowel space area across speaking rate, the area of the vowel quadrilateral was calculated for each speaker at each speaking rate. In addition, intelligibility estimates at each speaking rate were obtained for the dysarthric, speakers. Results revealed that dysarthric speakers exhibited smaller vowel space areas and less systematic changes in vowel space as a function of speaking rate, when compared to the neurologically intact speakers. In an examination of the relationship between vowel space area and speech intelligibility; vowel Space was found to account for 45% of the variance in speech intelligibility. This result suggests that vowel space area is an important component global estimates of speech intelligibility.