A combination of vocal fo dynamic and summary features discriminates between three pragmatic categories of infant-directed speech.

A combination of vocal fo dynamic and summary features discriminates between three pragmatic categories of infant-directed speech.
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声音动态和概括特征的组合区分了婴儿定向言语的三个语用类别。

DOI:
10.1111/j.1467-8624.1996.tb01729.x
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发表时间:
1996
期刊:
影响因子:
4.6
通讯作者:
Moore,CA
Moore,CA
中科院分区:
心理学1区
文献类型:
--
作者:
Katz,GS;Cohn,JF;Moore,CA

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为了评估语音基频(F0)的动态特征和概括特征对婴儿言语中语用类别的统计区分的相对贡献,49名母亲被要求用自己的声音来吸引4个月大的婴儿的注意力,表示赞同,并提供安慰。使用计算机化的语音实验室和定制软件从621个令牌中提取语音f0。用收敛方法(视觉判断和f0轮廓形状的定量建模)测量动态特征。总结特征包括平均值、标准差和持续时间。动态特征和摘要特征在统计上区分了每一种语用范畴。初始和交叉验证DFA的分类准确率分别为69%和62%。
To assess the relative contribution of dynamic and summary features of vocal fundamental frequency (f0) to the statistical discrimination of pragmatic categories in infant‐directed speech, 49 mothers were instructed to use their voice to get their 4‐month‐old baby's attention, show approval, and provide comfort. Vocal f0from 621 tokens was extracted using a Computerized Speech Laboratory and custom software. Dynamic features were measured with convergent methods (visual judgment and quantitative modeling of f0contour shape). Summary features were f0mean, standard deviation, and duration. Dynamic and summary features both individually and in combination statistically discriminated between each of the pragmatic categories. Classification rates were 69% and 62% in initial and cross‐validation DFAs, respectively.
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