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Recognition of devoiced vowels using optical microphone made of multiple POF moisture sensors
Author(s) -
Morisawa Masayuki,
Natori Yoichi,
Taki Tomohito,
Muto Shinzo
Publication year - 2010
Publication title -
electronics and communications in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.131
H-Index - 13
eISSN - 1942-9541
pISSN - 1942-9533
DOI - 10.1002/ecj.10253
Subject(s) - microphone , moisture , computer science , speech recognition , matching (statistics) , acoustics , fiber , optical fiber , discernment , artificial intelligence , pattern recognition (psychology) , mathematics , materials science , telecommunications , statistics , physics , composite material , philosophy , sound pressure , epistemology
A novel optical fiber microphone system for recognizing devoiced vowels has been studied. This system consists of optical detection of the moisture pattern formed by a devoiced breath and its recognition by modified DP‐matching. To detect the moisture pattern of devoiced vowels, five plastic optical fiber moisture sensors with fast response were developed and used. Using this system, a high discernment rate of over 93% was obtained for devoiced vowels. This system will be used for verbally handicapped people to create sounds with minimal effort in the near future. © 2010 Wiley Periodicals, Inc. Electron Comm Jpn, 93(9): 12–18, 2010; Published online in Wiley Online Library ( wileyonlinelibrary.com ). DOI 10.1002/ ecj.10253