Duration is a cross-linguistically common correlate of metrical prominence, but it is also a well-known multi-purpose phonetic cue. The confounding impact of factors such as word length, segmental structure, phrasal stress, or boundary effects on the expression of word-level metrical prominence has been widely acknowledged in the phonetic literature. Yet, there are few studies which attempt to disentangle various factors affecting temporal patterns in a rigorous way. The present study investigates timing patterns in a hybrid (lexical-grammatical) metrical system of Ukrainian, in which increased duration signals both lexical (unpredictable) and rhythmic (predictable) stress. We perform extrinsic pairwise comparisons of vowels and consonants based on segmentally identical word pairs differing only in the location of stress (σˈσσˌσ/ˌσσˈσσ). This experimental design allows us to empirically distinguish between the effects of metrical prominence and lengthening at the word edges, simultaneously controlling for the potential confounding influence of polysyllabic shortening and intrinsic segmental length. The analysis of the data collected from 14 native speakers suggests that vocalic duration is a robust cue for lexical stress, whose domain extends to the pretonic syllable. Furthermore, a subtle increase in duration of the word-final vowel serves as a cue for rhythmic stress in Ukrainian.

持续时间是跨语言的音标突出的常见关联，但它也是众所周知的多用途语音提示。语音长度，片段结构，短语重音或边界效应等因素对单词水平的度量突出表达的混杂影响已在语音文献中得到广泛认可。但是，很少有研究试图以严格的方式弄清影响时间模式的各种因素。本研究调查了乌克兰语的混合（词法-语法）度量系统中的时序模式，其中持续时间增加表示词法（不可预测）和节奏性（可预测）重音。我们基于仅在重音位置（σˈσσˌσ / ˌσσˈσσ）上不同的部分相同的单词对执行元音和辅音的外在成对比较。此实验设计使我们能够从经验上区分出音高和单词边缘加长的影响，同时控制多音节缩短和内在句段长度的潜在混淆影响。对从14个以英语为母语的人收集的数据进行的分析表明，声音持续时间是词汇重音的可靠提示，词汇重音的范围扩展到了音调音节。此外，词尾元音持续时间的细微增加是乌克兰语中有节奏性重音的提示。对从14个以英语为母语的人收集的数据进行的分析表明，声音持续时间是词汇重音的可靠提示，词汇重音的范围扩展到了音调音节。此外，词尾元音持续时间的细微增加可作为乌克兰语中有节奏的重音的提示。对从14个以英语为母语的人收集的数据进行的分析表明，声音持续时间是词汇重音的可靠提示，词汇重音的范围扩展到了音调音节。此外，词尾元音持续时间的细微增加可作为乌克兰语中有节奏的重音的提示。