A measurement study on voice instabilities during modal-falsetto register transition

Yasufumi Uezu, Tokihiko Kaburagi

研究成果: ジャーナルへの寄稿記事

抄録

When one of the dominant harmonics (the fundamental frequency and its harmonic components) is close to the first formant frequency, the effect of the source-filter interaction can induce voice register transition, in which the vocal-fold vibration becomes unstable and the pitch jumps abruptly. We investigated the relationship between the dominant harmonics, the first formant frequency, and the pitch jump width in the modal-falsetto transition to examine the effect of sourcefilter interaction. We measured temporal patterns of the fundamental frequency and the first formant when subjects performed rising glissandi with /a/ and /i/ vowels. For the /a/ vowel, there were weak proximity relationships between the dominant harmonics and first formant during the transition, indicating that source-induced transition occurred. For the /i/ vowel, in contrast, the fundamental frequency was regularly close to the first formant in the transition, indicating that the acoustically induced transition was caused by the source-filter interaction. Additionally, it was found that the difference between these two mechanisms had little influence on the pitch jump width. Finally, we concluded that the source-filter interaction is a contributory factor of the modal-falsetto transition, in agreement with foregoing studies.

元の言語英語
ページ(範囲)267-276
ページ数10
ジャーナルAcoustical Science and Technology
37
発行部数6
DOI
出版物ステータス出版済み - 1 1 2016

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registers
vowels
harmonics
filters
interactions
proximity
vibration

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

これを引用

A measurement study on voice instabilities during modal-falsetto register transition. / Uezu, Yasufumi; Kaburagi, Tokihiko.

:: Acoustical Science and Technology, 巻 37, 番号 6, 01.01.2016, p. 267-276.

研究成果: ジャーナルへの寄稿記事

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