Acceptability for temporal modification of single vowel segments in isolated words.
Acceptability for temporal modification of single vowel segments in isolated words.
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孤立词中单个元音片段的时间修改的可接受性。
DOI：
10.1121/1.423301
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
Y. Sagisaka
中科院分区：
文献类型：
--
作者：
H. Kato;M. Tsuzaki;Y. Sagisaka
很少有知觉研究的时间方面的讲话调查的影响段持续时间的变化方面的可接受性。为了有助于语音合成中分配段持续时间的规则的评估，目前的研究测量的感知可接受性的变化，在元音的段持续时间作为段属性或上下文的函数，如基础持续时间，在一个词的时间位置，元音质量，和发声的以下段。七个听众估计的可接受性的单词刺激，其中一个元音受到时间的修改，从-50毫秒（缩短）到+50毫秒（延长）在5毫秒的步骤。在70个单词的上下文中，时间修改应用于元音段;它们的持续时间范围从35 - 145 ms，单词中的莫拉位置是第一或第三，元音质量是/a/或/i/，并且接下来的段是浊音或清音辅音。实验结果表明，受试者对位于第一元音位置的元音的音长调整的接受范围比位于第三元音位置的元音的音长调整的接受范围窄。元音/a/的可接受范围也比元音/i/窄，元音后接清音辅音的可接受范围也比元音后接浊音辅音的可接受范围窄。落入最不脆弱类的元音（第三个/i/，后面跟着一个浊辅音）需要140%的修改，落入最脆弱类（第一个/a/，后面跟着一个清音辅音），以产生相同的可接受性递减。与此相反，原始元音持续时间的可接受性的时间修改的影响是不显着的，尽管其广泛的变化（35 - 145毫秒）。
Few perceptual studies of the temporal aspects of speech have investigated the influence of changes in segmental durations in terms of acceptability. Aiming to contribute to the assessment of rules for assigning segmental durations in speech synthesis, the current study measured the perceptual acceptability of changes in the segmental duration of vowels as a function of the segment attributes or context, such as base duration, temporal position in a word, vowel quality, and voicing of the following segment. Seven listeners estimated the acceptability of word stimuli in which one of the vowels was subjected to a temporal modification from -50 ms (for shortening) to +50 ms (for lengthening) in 5-ms steps. The temporal modification was applied to vowel segments in 70 word contexts; their durations ranged from 35-145 ms, the mora position in the word was first or third, the vowel quality was /a/ or /i/, and the following segment was a voiced or an unvoiced consonant. The experimental results showed that the listeners' acceptable range of durational modification was narrower for vowels in the first moraic position in the word than for those in the third moraic position. The acceptable range was also narrower for the vowel /a/ than for the vowel /i/, and similarly narrower for vowels followed by unvoiced consonants than for those followed by voiced consonants. The vowel that fell into the least vulnerable class (the third /i/, followed by a voiced consonant) required 140% of the modification of that which fell into the most vulnerable class (the first /a/, followed by an unvoiced consonant) to yield the same acceptability decrement. In contrast, the effect of the original vowel duration on the acceptability of temporal modifications was not significant despite its wide variation (35-145 ms).
语境对语音产生中元音持续时间、闭合持续时间和辅音/元音比率的影响。
DOI：
10.1121/1.392651
发表时间：
1985
期刊：
The Journal of the Acoustical Society of America
影响因子：
--
作者：
Luce,PA;Charles-Luce,J
通讯作者：
Charles-Luce,J