Just noticeable differences for segment duration in natural speech.
Just noticeable differences for segment duration in natural speech.
复制标题
只是自然语音中片段持续时间存在明显差异。
DOI：
10.1121/1.1912971
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发表时间：
1969
期刊：
影响因子：
--
通讯作者：
A. Huggins
中科院分区：
文献类型：
--
作者：
A. Huggins
使用阈值跟踪方法来测量自然说出的句子中片段持续时间的增量和减量的最小可察觉差异。在五个不同的上下文中对a /p/进行了测量，其中两个是单词首字母，两个是单词中间，一个是单词结尾;对于/，m/和/l/都在初始预应力位置;以及对于重读元音//。结果表明，受试者更敏感的变化，元音持续时间比辅音持续时间的变化，在段持续时间的变化可能有几个不同的感知效果，包括感知的压力和感知的节奏的变化。当受试者根据感知到的压力或节奏的变化做出判断时，他们通常能够检测到比他们注意到刺激的其他方面时更小的持续时间变化。
A threshold‐tracking method was used to measure both the incremental and the decremental just noticeable differences for segment duration in naturally spoken sentences. The measurements were made for a /p/ in five different contexts, including two that were word initial, two that were word medial, and one that was word final; for /∫,m/, and /l/ all in initial prestress position; and for a stressed vowel /ɔ/. The results show that subjects are much more sensitive to changes in vowel duration than to changes in consonant duration, and that changes in segment duration may have several different perceptual effects, including changes in perceived stress and perceived rhythm. When subjects based their judgments on changes in perceived stress or rhythm, they were usually able to detect smaller changes in duration than when they attended to other aspects of the stimuli.