This work, which is couched in the theoretical framework of Articulatory Phonology, deals with the influence of speech rate on the change/variation from antepenultimate stress words into penultimate stress words in Brazilian Portuguese. Both acoustic and articulatory (EMMA) studies were conducted. On the acoustic side, results show different patterns of post-stressed vowel reduction according to the word type. Some words reduced their medial post-stressed vowels more than their final post-stressed vowels, and others reduced their final post-stressed vowels more than their medial post-stressed vowels. On the articulatory side, results show that the coarticulation degree of the post-stressed consonants increases with speech rate. Also, with the use of a measure called proportional consonantal interval (PCI), it was found in measurements of articulation that such measure is influenced by the word type. Three different groups of words were found according to their PCI. These results show how dynamical aspects influenced by speech rate increase are related to the lexical process of change/variation from antepenultimate stress words into penultimate ones.

中文翻译：

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巴西葡萄牙语词汇重组：发音研究。

这项工作以发音音韵学的理论框架为基础，处理语速对巴西葡萄牙语从倒数第二个重音词到倒数第二个重音词的变化/变化的影响。进行了声学和发音 (EMMA) 研究。在声学方面，结果显示根据单词类型不同的后重音元音减少模式。有些词减少了他们的中间后重音元音，而不是他们的最终后重音元音，而另一些词减少了他们的最终后重音元音，而不是他们的中间后重音元音。在发音方面，结果表明后重音辅音的发音程度随着语速的增加而增加。此外，使用称为比例辅音间隔 (PCI) 的测量方法，在发音的测量中发现，这种测量受单词类型的影响。根据它们的 PCI 找到了三组不同的词。这些结果显示了受语速增加影响的动态方面如何与从倒数第二个重音词到倒数第二个重音词的变化/变异的词汇过程相关。