Time-varying features as correlates of place of articulation in stop consonants.
Time-varying features as correlates of place of articulation in stop consonants.
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DOI：
10.1121/1.388813
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发表时间：
1983
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影响因子：
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通讯作者：
D. Kewley-Port
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作者：
D. Kewley-Port
运行频谱显示来自线性预测分析被用来检查的初始40毫秒的停止元音CV音节可能的声学相关的发音的地方。已知的频谱和时间属性与停止辅音释放手势被用来定义一组三个随时间变化的视觉显示中观察到的功能。法官确定发音的地方，使用这些建议的功能，从运行频谱的音节/B，d，g/与八个元音由三个说话者。对地点的平均正确识别率为88%，男性说话者的识别率（92%）高于女性说话者（78%）。事后分析表明，然而，简单的规则可以纳入功能定义，以考虑声道大小的差异。进一步分析了线性预测运行频谱中包含的信息的性质，以考虑到外周听觉系统的已知特性。这三个随时间变化的功能被证明是显示强大的听觉滤波运行频谱。关于Blumstein和Stevens最近倡导的静态模板匹配方法，讨论了从运行频谱中的动态变化的时间和频谱信息描述位置的声学相关的优点[J. Acoust.美国社会66，1001-1017（1979）]。
Running spectral displays derived from linear prediction analysis were used to examine the initial 40 ms of stop-vowel CV syllables for possible acoustic correlates to place of articulation. Known spectral and temporal properties associated with the stop consonant release gesture were used to define a set of three-time-varying features observable in the visual displays. Judges identified place of articulation using these proposed features from running spectra of the syllables /b,d,g/paired with eight vowels produced by three talkers. Average correct identification of place was 88%; identification was better for the male talkers (92%) than the one female talker (78%). Post hoc analyses suggested, however, that simple rules could be incorporated in the feature definitions to account for differences in vocal tract size. The nature of the information contained in linear prediction running spectra was analyzed further to take account of known properties of the peripheral auditory system. The three proposed time-varying features were shown to be displayed robustly in auditory filtered running spectra. The advantages of describing acoustic correlates for place from the dynamically varying temporal and spectral information in running spectra is discussed with regard to the static template matching approach advocated recently by Blumstein and Stevens [J. Acoust. Soc. Am. 66, 1001-1017 (1979)].