Presentation 2007/7/19
Evaluation of an LP-based blind restoration method to improve intelligibility of BC speech
Masashi UNOKI, VU Thang TAT, Germine SEIDE, Masato AKAGI,
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Abstract(in English) Bone-conducted (BC) speech can be used instead of air-conducted (AC) speech for speech communication systems in an extremely noisy environment. However, it has very poor sound quality and its intelligibility is degraded when transmitted through bone conduction. Therefore, blindly improving intelligibility of BC speech is a challenging topic. In previous study, we proposed a linear prediction (LP) based blind-restoration model to improve voice quality and intelligibility of BC speech. However, we have not yet completely evaluated the proposed model, in particular, with regard to speech intelligibility. In this paer, we therefore completely evaluated the proposed model in comparison with other models to find out whether the model could adequately improve voice quality and the intelligibility of BC speech, using objective measures (LSD, MOD, and LCD) and carrying out Japanese-word Intelligibility Tests (JITs) and Modified Rhyme Tests (MRTs) for English word. The experimental resutls of objective and subjective evaluations (JITs and RMTs) proved the practicability of blind-BC restoration.
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Keyword(in English) Bone-conducted speech / Linear prediction / Blind restoration / Speech intelligibility test / Modified Rhyme test
Paper # SP2007-41
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Committee SP
Conference Date 2007/7/19(1days)
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Registration To Speech (SP)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Evaluation of an LP-based blind restoration method to improve intelligibility of BC speech
Sub Title (in English)
Keyword(1) Bone-conducted speech
Keyword(2) Linear prediction
Keyword(3) Blind restoration
Keyword(4) Speech intelligibility test
Keyword(5) Modified Rhyme test
1st Author's Name Masashi UNOKI
1st Author's Affiliation School of Information Science, Japan Advanced Institute of Science and Technology()
2nd Author's Name VU Thang TAT
2nd Author's Affiliation School of Information Science, Japan Advanced Institute of Science and Technology
3rd Author's Name Germine SEIDE
3rd Author's Affiliation School of Information Science, Japan Advanced Institute of Science and Technology
4th Author's Name Masato AKAGI
4th Author's Affiliation School of Information Science, Japan Advanced Institute of Science and Technology
Date 2007/7/19
Paper # SP2007-41
Volume (vol) vol.107
Number (no) 165
Page pp.pp.-
#Pages 6
Date of Issue