The F0 fall delay of lexical pitch accent in Japanese Infant-directed speech

Yoko Saikachi, Mafuyu Kitahara, Ken'ya Nishikawa, Ai Kanato, Reiko Mazuka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The current study examined the acoustic modifications of the lexical pitch accent in Tokyo Japanese infant-directed speech (IDS), with the focus on the F0 fall delay, where the alignment of the F0 turning points associated with pitch accents were delayed with respect to the accented mora. The RIKEN Mother- Infant Conversation Corpus (R-JMICC) [1] produced by 21 mothers from Tokyo area, was used to investigate the alignment of the F0 turning points. Two-piece linear regression was used to locate the turning points and the frequency of F0 fall delay was computed in IDS and in adult-directed speech (ADS). The results revealed that the frequency of F0 fall delay depended on the syllable structures of the accented syllable as well as the prosodic conditions (the presence of the boundary pitch movements and non-lexical lengthening) typically observed in Japanese IDS. We found significantly more frequent F0 fall delay in IDS compared to ADS, when the prosodic conditions were taken into account. The results indicate that the language specific prosodic structure should be considered in order to characterize the F0 fall delay of lexical pitch accents in IDS.

Original languageEnglish
Title of host publication13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012
Pages2485-2488
Number of pages4
Volume3
Publication statusPublished - 2012
Event13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012 - Portland, OR
Duration: 2012 Sep 92012 Sep 13

Other

Other13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012
CityPortland, OR
Period12/9/912/9/13

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Keywords

  • F0 turning points of pitch accents
  • Infant-directed speech

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Communication

Cite this

Saikachi, Y., Kitahara, M., Nishikawa, K., Kanato, A., & Mazuka, R. (2012). The F0 fall delay of lexical pitch accent in Japanese Infant-directed speech. In 13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012 (Vol. 3, pp. 2485-2488)