Research on acoustic features of voiceless affricates in native andnon-native Japanese speakers

本文研究了日语中消舌音[ts]和[t〓]以及摩擦音[s]的声学特征，以澄清辅音辨别的好变量。结果表明，时域声学特征可以有效地区分[t〓]-[s]和[t〓]-[s]等不同发音方式的辅音。相比之下，频域的声学特征可以有效地区分发音位置不同的辅音，如[ts]-[t〓]和[t〓]-[s]。

Acoustic features of affricates [ts] and [t〓], and a fricative [s] in Japanese were investigated to clarify good variables for consonant discrimination. It was revealed that acoustic features in the time domain areefficient to discriminate consonants with a different manner of articulation such as [t〓]-[s] and [t〓]-[s]. By contrast, acoustic features in the frequency domain are efficient to discriminate consonants with a different place of articulation such as[ts]-[t〓] and [t〓]-[s].