Acoustic and articulatory manifestations of vowel reduction in German
Acoustic and articulatory manifestations of vowel reduction in German
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德语中元音减少的声学和发音表现
DOI：
10.1017/s0025100308003435
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发表时间：
2008
影响因子：
0.8
通讯作者：
C. Geng
中科院分区：
文献类型：
--
作者：
Christine Mooshammer;C. Geng
近年来的音系学研究将语音学原理引入到音系转换的动机中，如通过目标音下冲来减少和中和非重读位置的元音。到目前为止，这一假设的证据是基于印象和声学数据，但不是发音数据。本研究的主要目的是比较共振峰空间和语言的位置在德国元音的生产过程中的压力，口音和纠正对比的综合效果。为了确定独立于说话者特定声道解剖结构和个体生物力学特性的元音减少策略，将类似于广义Procrustes分析的方法应用于共振峰空间和舌元音目标位置。数据基础包括德国强调和非强调全元音/iy扬声器规范化发音和共振峰空间的证据表明，更大程度的协同发音与辅音上下文的非重音元音相比，强调元音。然而，只有紧张元音的空间减少模式可以归因于元音缩短，而宽松元音减少没有缩短。根据元音压缩的现有理论，即目标下冲，自适应色散理论和突出对齐的结果进行了讨论。
Recent phonological approaches incorporate phonetic principles in the motivation of phonological regularities, e.g. vowel reduction and neutralization in unstressed position by target undershoot. So far, evidence for this hypothesis is based on impressionistic and acoustic data but not on articulatory data. The major goal of this study is to compare formant spaces and lingual positions during the production of German vowels for combined effects of stress, accent and corrective contrast. In order to identify strategies for vowel reduction independent of speaker-specific vocal-tract anatomies and individual biomechanical properties, an approach similar to the Generalized Procrustes Analysis was applied to formant spaces and lingual vowel target positions. The data basis consists of the German stressed and unstressed full vowels /iù ɪ yù ʏ eù ɛ ɛù φù œ aù a où ɔ uù ʊ/ from seven speakers recorded by means of electromagnetic midsagittal articulography (EMMA). Speaker normalized articulatory and formant spaces gave evidence for a greater degree of coarticulation with the consonant context for unstressed vowels as compared to stressed vowels. However, only for tense vowels could spatial reduction patterns be attributed to vowel shortening, whereas lax vowels were reduced without shortening. The results are discussed in the light of current theories of vowel reduction, i.e. target undershoot, Adaptive Dispersion Theory and Prominence Alignment.