Acoustic Feature

声学特征

A characteristic of a speech sound when analyzed in physical terms, e.g. fundamental frequency, amplitude, harmonic structure. Such analyses are provided by acoustic phonetics, and it is possible to make acoustic classifications of speech sounds based upon such features, as when one classifies vowels in terms of their formant structure.

指从物理上分析的语言特征，如基频，振幅，谐波结构等。声学语音学从事这类分析，并可用这类特征给语音作声学分类，如按元音的共振峰结构给元音分类。