Acceptability for temporal modification of consecutive segments in isolated words

Hiroaki Kato*, Minoru Tsuzaki, Yoshinori Sagisaka

*この研究の対応する著者

研究成果: Article査読

25 被引用数 (Scopus)

抄録

Perceptual sensitivity to temporal modification in two consecutive speech segments was measured in word contexts to explore the following two questions: (1) whether there is an interaction between multiple segmental durations, and (2) what aspect of the stimulus context determines the perceptually salient temporal markers? Experiment 1 obtained acceptability ratings for words with temporal modifications. The results showed that the compensatory change in duration of a vowel (V) and its adjacent consonant (C) is not perceptually so salient as expected for the simultaneous modifications in the two segments. This finding suggests the presence of a time perception range wider than a single segment (V or C). The results of experiment 1 also showed that rating scores for compensatory modification between V and C do not depend on the temporal order of modified pairs (VC or CV), but rather on the loudness difference between V and C; the acceptability decreased when the loudness difference between V and C became high. This suggests that perceptually salient markers locate around major jumps in loudness. The second finding, the dependence on the loudness jump, was replicated in experiment 2, which utilized a detection task for temporal modifications on nonspeech stimuli modeling the time-loudness features of the speech stimuli. Experiment 3 further investigated the influence of the temporal order of V and C by utilizing the detection task for the speech stimuli instead of the acceptability ratings.

本文言語English
ページ(範囲)2311-2322
ページ数12
ジャーナルJournal of the Acoustical Society of America
101
4
DOI
出版ステータスPublished - 1997 4
外部発表はい

ASJC Scopus subject areas

  • 人文科学(その他)
  • 音響学および超音波学

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