Presentation 2002/1/17
Improvement of Phoneme Identifiability by Fluctuation of Fundamental Frequency
Daisuke NAGAHATA, Masuzo YANAGIDA,
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Abstract(in English) When fundamental frequency of a vowel fluctuates, apexes of harmonic components fluctuate synchronously along the spectral envelope. So the spectral envelope can be more clearly indicated, and hence vowel identification is expected to be easier, in case the fundamental frequency fluctuates. This report experimentally confirms that the fluctuations contribute to vowel identification, through listening test employing pulse excited synthetic vowels. The results show that sinusoidal fluctuation of fundamental frequency improves vowel identifiability more for higher fundamental frequency than for lower fundamental frequency. Shown is the possibility that the sinusoidal fluctuation has saturation depth beyond which vowel identifiability cannot be improved anymore.
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Keyword(in English) phoneme identifiability / fundamental frequency jitter / formant frequency / singing voice / synthetic vowel
Paper # 2001-SP-118
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Committee SP
Conference Date 2002/1/17(1days)
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Language ENG
Title (in Japanese) (See Japanese page)
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Title (in English) Improvement of Phoneme Identifiability by Fluctuation of Fundamental Frequency
Sub Title (in English)
Keyword(1) phoneme identifiability
Keyword(2) fundamental frequency jitter
Keyword(3) formant frequency
Keyword(4) singing voice
Keyword(5) synthetic vowel
1st Author's Name Daisuke NAGAHATA
1st Author's Affiliation Faculty of Engineering, Doshisha University()
2nd Author's Name Masuzo YANAGIDA
2nd Author's Affiliation Faculty of Engineering, Doshisha University
Date 2002/1/17
Paper # 2001-SP-118
Volume (vol) vol.101
Number (no) 603
Page pp.pp.-
#Pages 8
Date of Issue