Soli S D, Arabie P
J Acoust Soc Am. 1979 Jul;66(1):46-59. doi: 10.1121/1.382972.
The utility of phonetic features versus acoustic properties for describing perceptual relations among speech sounds was evaluated with a multidimensional scaling analysis of Miller and Nicely's [J. Acoust. Soc. Am. 27, 338-352 (1955)] consonant confusions data. The INDSCAL method and program were employed with the original data log transformed to enhance consistency with the linear INDSCAL model. A four-dimensional solution accounted for 69% of the variance and was best characterized in terms of acoustic properties of the speech signal, viz., temporal relationship of periodicity and burst onset, shape of voiced first formanant transition, shape of voiced second formanant transition, and amount of initial spectral dispersion, rather than in terms of phonetic features. The amplitude and spectral location of acoustic energy specifying each perceptual dimension were found to determine a dimension's perceptual effect as the signal was degraded by masking noise and bandpass filtering. Consequently, the perceptual bases of identification confusions between pairs of syllables were characterized in terms of the shared acoustic properties which remained salient in the degraded speech. Implications of these findings for feature-based accounts of perceptual relationships between phonemes are considered.
通过对米勒和尼斯利[《美国声学学会杂志》27, 338 - 352(1955)]的辅音混淆数据进行多维缩放分析，评估了语音特征与声学特性在描述语音之间感知关系方面的效用。使用INDSCAL方法和程序，对原始数据进行对数变换，以增强与线性INDSCAL模型的一致性。一个四维解决方案解释了69%的方差，并且用语音信号的声学特性来描述最为合适，即周期性和爆破起始的时间关系、浊音第一共振峰过渡的形状、浊音第二共振峰过渡的形状以及初始频谱离散量，而不是用语音特征来描述。当信号被掩蔽噪声和带通滤波退化时，发现指定每个感知维度的声能的幅度和频谱位置决定了一个维度的感知效果。因此，音节对之间识别混淆的感知基础是根据在退化语音中仍然显著的共享声学特性来描述的。考虑了这些发现对基于特征的音素之间感知关系解释的影响。
