Hillenbrand J, Getty L A, Clark M J, Wheeler K
Department of Speech Pathology and Audiology, Western Michigan University, Kalamazoo 49008, USA.
J Acoust Soc Am. 1995 May;97(5 Pt 1):3099-111. doi: 10.1121/1.411872.
The purpose of this study was to replicate and extend the classic study of vowel acoustics by Peterson and Barney (PB) [J. Acoust. Soc. Am. 24, 175-184 (1952)]. Recordings were made of 45 men, 48 women, and 46 children producing the vowels /i,I,e, epsilon,ae,a, [symbol: see text],O,U,u, lambda,3 iota/ in h-V-d syllables. Formant contours for F1-F4 were measured from LPC spectra using a custom interactive editing tool. For comparison with the PB data, formant patterns were sampled at a time that was judged by visual inspection to be maximally steady. Analysis of the formant data shows numerous differences between the present data and those of PB, both in terms of average frequencies of F1 and F2, and the degree of overlap among adjacent vowels. As with the original study, listening tests showed that the signals were nearly always identified as the vowel intended by the talker. Discriminant analysis showed that the vowels were more poorly separated than the PB data based on a static sample of the formant pattern. However, the vowels can be separated with a high degree of accuracy if duration and spectral change information is included.
本研究的目的是复制并扩展彼得森和巴尼（PB）对元音声学的经典研究[《美国声学学会杂志》24, 175 - 184 (1952)]。对45名男性、48名女性和46名儿童在h - V - d音节中发/i, I, e, ε, æ, a, [符号：见原文], O, U, u, λ, 3 ι/这些元音的情况进行了录音。使用定制的交互式编辑工具从线性预测编码（LPC）频谱中测量F1 - F4的共振峰轮廓。为了与PB的数据进行比较，在通过视觉检查判断为最稳定的时刻对共振峰模式进行采样。对共振峰数据的分析表明，当前数据与PB的数据在F1和F2的平均频率以及相邻元音之间的重叠程度方面存在许多差异。与原始研究一样，听力测试表明，信号几乎总是被识别为说话者想要发出的元音。判别分析表明，基于共振峰模式的静态样本，元音之间的区分比PB的数据要差。然而，如果纳入时长和频谱变化信息，元音可以被高度准确地分离。
