Journal
ELECTRONICS AND COMMUNICATIONS IN JAPAN
Volume 93, Issue 9, Pages 12-18Publisher
SCRIPTA TECHNICA-JOHN WILEY & SONS
DOI: 10.1002/ecj.10253
Keywords
plastic optical fiber (POF); swelling polymer; optical fiber moisture sensor; devoiced breath; vowel recognition; DP matching
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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. (c) 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
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