Presentation 2005/7/14
A method for improving band-limited speech quality
Tsuneari UNOKI, Mamoru IWAKI, Toru KIRYU,
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Abstract(in English) Speech sounds are originally wideband signals. The telephone system of today deals with the speech sounds as if it were band-limited from 300 to 3400 [Hz]. It causes some issues, e.g. speech sounds are hard to understand, especially in elderly persons. In this paper, we proposed a method for improving speech quality by estimating missing high frequency components with previously created database. That is based on assumption components between lower frequency and higher frequency have strong correlation. We examined the effect of speech sound quality by subjective assessment and objective one.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) speech sound quality / band limited speech / improvement of sound quality / spectrum extension
Paper # SP2005-37
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Committee SP
Conference Date 2005/7/14(1days)
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Language JPN
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Sub Title (in Japanese) (See Japanese page)
Title (in English) A method for improving band-limited speech quality
Sub Title (in English)
Keyword(1) speech sound quality
Keyword(2) band limited speech
Keyword(3) improvement of sound quality
Keyword(4) spectrum extension
1st Author's Name Tsuneari UNOKI
1st Author's Affiliation Graduate School of Science and Technology, Niigata University()
2nd Author's Name Mamoru IWAKI
2nd Author's Affiliation Graduate School of Science and Technology, Niigata University
3rd Author's Name Toru KIRYU
3rd Author's Affiliation Graduate School of Science and Technology, Niigata University
Date 2005/7/14
Paper # SP2005-37
Volume (vol) vol.105
Number (no) 198
Page pp.pp.-
#Pages 6
Date of Issue