山东高青方言声母声学特征研究
Study on the Acoustic Characteristics of Initials in Gaoqing dialect in Shandong

在音系整理的基础上利用praat提取所标注音档的VOT、摩擦段时长、谱矩、共振峰，以探究高青方言声母的声学特征及其区别效应，并据此分析声母的发音特点。实验表明，时长分析法是区分高青方言辅音声母的重要方法。该方言舌尖音、舌面音、唇音声母的记音虽与它们在普通话中的对应相一致，但二者的发音特点却有较明显的区别。谱矩可较好区分高青方言擦音清浊、擦音与塞擦音的发音部位。高青方言存在？、？、l、？ 4个普通话中没有的声母。
On the basis of phonological arrangement, the VOT, friction segment duration, spectral moment and formant peak of the marked audio files were extracted by praat to explore the acoustic characteristics and distinguishing effects of the initials in Gaoqing dialect, and the pronunciation characteristics of the initials were analyzed accordingly. Experiments show that the duration analysis method is an important method to distinguish the consonant initials of Gaoqing dialect. Although the pronunciation of the apical tongue, tongue sound, and labial initials of this dialect is consistent with their correspondence in Mandarin, the pronunciation characteristics of the two are quite different. The spectral moment can better distinguish the pronunciation parts of the Gaoqing dialect fricative voiced, fricative and plosive fricative. The Gaoqing dialect has four initials that are not found in Mandarin: ？, ？, l, and ？.