中国方言区英语学习者语音库构建

汉语内部方言众多,不同的方言具有特定的语音系统和发音规律,方言区英语学习者的发音受汉语方音(Chinese dialectal pronunciation)的影响,会不自觉地将方言(母语)中的语音规则,套用到英语发音中,往往造成发音偏误,偏误的类型因方言差异而不同。为解决中国英语学习者面临的语音问题,研究提出构建大规模方言区英语学习者语音库AESOP-CASS,语音库方言点涵盖中国十大方言区,语料内容包括英语语料,方言语料和方言普通话语料,基于语料库可以对方言区英语学习者语音进行系统研究,将语音学中的参数VOT、共振峰、语调音系模式等特征用于英语学习者偏误分析,可针对不同方言区学习者提出不同的矫正方法。

Pause or No Pause?—Prosodic Phrase Boundaries Revisited

This study presents evidence from analyses of the acoustic parameters of fluent continuous speech to show that within-paragraph prosodic phrase boundaries are related more to contrasts of neighborhood prosodic states rather than between-phrase pause durations; prosodic states receive more constraints from higher level discourse information. By revising a modular acoustic model by Tseng＇s hierarchical prosodic phrase grouping framework and examining the much varied prosodic phrase （PPh） boundary B3 within speech paragraph, we show that statistical accounts of layered contributions reveal distinct contrasts between boundary immediate duration and intensity patterns irrespective of pause duration. Contrasts of FO contour patterns were also observed in these locations. Evidence was also obtained to illustrate how PPh boundary states are specified more by higher level discourse information than by lower level prosodic word construction. These combined results suggest that contrastive neighboring prosodic states are more significant cues to PPh boundaries than boundary pause duration. The results also help explain why in fluent speech between-phrase pause durations vary greatly, and can be applied to automatic speech segmentation.

从口语韵律的功能与分析看语音对立

本文从韵律功能切入语音现象,从对比的角度分析解释口语韵律,以解构汉语字调、小句调及英语词重音的声学与感知对比强度,并根据语流中焦点强调之分析结果,以音系之范畴对立思路试论形成对立的条件及意义。本文强调,分析语料需先就其特性,考虑分析单位及方法,厘清口语体中可预测信息及语言体系指派信息的关系,才能透视语言事实并提出正确的语音解释。