Development of binaural hearing aid using a new sound transmission route (cartilage conduction)
Project/Area Number |
24791799
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Otorhinolaryngology
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Research Institution | Shimane University (2014-2015) Nara Medical University (2012-2013) |
Principal Investigator |
Shimokura Ryota 島根大学, 総合理工学研究科(研究院), 助教 (90455428)
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Project Period (FY) |
2012-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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Keywords | 実験系心理学 / 解析・評価 / 電子デバイス・機器 / 医療・福祉 |
Outline of Final Research Achievements |
An aim of this study is to evaluate binaural hearing effects (sound localization and improved speech intelligibility under noisy condition) and improve an existing cartilage hearing aid for a practical use of the binaural cartilage conduction hearing aid. The sound localization examination showed that cartilage conduction sound could make users known the sound arrival direction as accurate as the air conduction sound. And the speech intelligibility examination in noisy condition showed that the cartilage conducted speech was harder to be caught due to a shortage of sound energy in a low frequency range (< 300 Hz). So we replaced a previous piezo-electric transducer with an electromagnetic one for the sake of more amplified output in the same range. Owing to the improvement, some hearing-impaired participants using the new cartilage conduction hearing aid could hear speech even in the crowd.
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Report
(5 results)
Research Products
(46 results)
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[Journal Article] Cartilage conduction hearing2014
Author(s)
R. Shimokura, H. Hosoi, T. Nishimura, T. Yamanaka, H. Levitt
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Journal Title
Journal of the Acoustical Society of America
Volume: 135
Issue: 4
Pages: 1959-1966
DOI
Related Report
Peer Reviewed
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[Presentation] 言語聴覚士が支える軟骨伝導補聴器の開発2014
Author(s)
下倉良太、齋藤修、細井裕司、西村忠己
Organizer
日本音響学会2014年秋季研究発表会
Place of Presentation
北海学園大学豊平キャンパス(北海道、札幌市)
Year and Date
2014-09-03 – 2014-09-05
Related Report
Invited
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