Quantifying the Robustness of the English Sibilant Fricative Contrast in Children.
Quantifying the Robustness of the English Sibilant Fricative Contrast in Children.
复制标题
量化儿童英语咝擦音对比的鲁棒性。
DOI：
10.1044/2015_jslhr-s-14-0090
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Edwards,Jan
中科院分区：
文献类型：
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作者：
Holliday,JeffreyJ;Reidy,PatrickF;Beckman,MaryE;Edwards,Jan
Purpose四个措施的儿童发展的语音对比的鲁棒性进行了比较，看看他们如何与年龄，词汇量，和成年听众的正确率rates. Methodword初始从81个2- 5岁的儿童和20名成人的擦音摩擦生产进行了语音转录和声学分析。四个措施的鲁棒性的对比度计算每个扬声器的基础上，从每个摩擦令牌测量的质心频率。被转录为正确的从不同的孩子的生产，然后被用作刺激的感知实验中，成年听众额定的善良，每个production.ResultsResults结果表明，类别重叠的程度，量化的百分比，一个孩子的产品，其类别可以正确地预测从输出的混合效应逻辑回归模型，的措施，相关最好与听众的善良judgment.ConclusionsEven当儿童的作品已被转录为正确的，成年听众是敏感的类别内的变化量化的儿童的类别重叠的程度。需要进一步的研究来探索儿童的年龄和成人对儿童言语中不同类型的类别内变异的敏感性之间的关系。
PurposeFour measures of children's developing robustness of phonological contrast were compared to see how they correlated with age, vocabulary size, and adult listeners' correctness ratings.MethodWord-initial sibilant fricative productions from eighty-one 2- to 5-year-old children and 20 adults were phonetically transcribed and acoustically analyzed. Four measures of robustness of contrast were calculated for each speaker on the basis of the centroid frequency measured from each fricative token. Productions that were transcribed as correct from different children were then used as stimuli in a perception experiment in which adult listeners rated the goodness of each production.ResultsResults showed that the degree of category overlap, quantified as the percentage of a child's productions whose category could be correctly predicted from the output of a mixed-effects logistic regression model, was the measure that correlated best with listeners' goodness judgments.ConclusionsEven when children's productions have been transcribed as correct, adult listeners are sensitive to within-category variation quantified by the child's degree of category overlap. Further research is needed to explore the relationship between the age of a child and adults' sensitivity to different types of within-category variation in children's speech.