Effects of time windowing for extraction of expression from Japanese speech: Higuchi's fractal dimension

Montri Phothisonothai, Yasunori Arita, Katsumi Watanabe

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

Abstract

Measures of irregularity and complexity in time-series data can be quantified by using fractal dimension (FD) which may convey useful information and showing a strong correlation with the physiological data, e.g., speech. The time-dependent FD (TDFD) has been proven to be effective method in various physiological studies. However, the TDFD result depends on the time windowing, i.e., length and type which could provide different features. Therefore, in this paper, the effects of time windowing of TDFD by spanning 28 to 212-point length and four window functions were investigated. The FD was computed by using Higuchi's method. In experiment, speech data recorded from 15 Japanese utterances, 4 different ways of expression (accosting, wholehearted, normal, and uninterested). The obtained results were useful in selecting time windowing based on TDFD method in which could extract different intonations effectively.

Original languageEnglish
Title of host publication13th International Symposium on Communications and Information Technologies
Subtitle of host publicationCommunication and Information Technology for New Life Style Beyond the Cloud, ISCIT 2013
Pages665-668
Number of pages4
DOIs
Publication statusPublished - 2013 Dec 31
Externally publishedYes
Event13th International Symposium on Communications and Information Technologies: Communication and Information Technology for New Life Style Beyond the Cloud, ISCIT 2013 - Surat Thani, Thailand
Duration: 2013 Sep 42013 Sep 6

Publication series

Name13th International Symposium on Communications and Information Technologies: Communication and Information Technology for New Life Style Beyond the Cloud, ISCIT 2013

Other

Other13th International Symposium on Communications and Information Technologies: Communication and Information Technology for New Life Style Beyond the Cloud, ISCIT 2013
CountryThailand
CitySurat Thani
Period13/9/413/9/6

Keywords

  • Expression
  • Fractals
  • Higuchi's method
  • Intonation
  • Physiological reaction
  • Speech

ASJC Scopus subject areas

  • Computer Networks and Communications

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    Phothisonothai, M., Arita, Y., & Watanabe, K. (2013). Effects of time windowing for extraction of expression from Japanese speech: Higuchi's fractal dimension. In 13th International Symposium on Communications and Information Technologies: Communication and Information Technology for New Life Style Beyond the Cloud, ISCIT 2013 (pp. 665-668). [6645938] (13th International Symposium on Communications and Information Technologies: Communication and Information Technology for New Life Style Beyond the Cloud, ISCIT 2013). https://doi.org/10.1109/ISCIT.2013.6645938