JP5883364B2 - 電気音響変換器とそれを用いたこもり低減装置 - Google Patents
電気音響変換器とそれを用いたこもり低減装置 Download PDFInfo
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- JP5883364B2 JP5883364B2 JP2012186017A JP2012186017A JP5883364B2 JP 5883364 B2 JP5883364 B2 JP 5883364B2 JP 2012186017 A JP2012186017 A JP 2012186017A JP 2012186017 A JP2012186017 A JP 2012186017A JP 5883364 B2 JP5883364 B2 JP 5883364B2
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- sound
- electroacoustic transducer
- hearing aid
- ear canal
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- 210000000613 ear canal Anatomy 0.000 claims description 52
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Description
Claims (5)
- 外耳道内に音を出力する音出力手段と、外耳道内の音を集音するエレクトレット化した圧電高分子フィルムとインピーダンス変換器からなる集音手段を備え、前記音出力手段の前室に前記集音手段を配設することを特徴とする電気音響変換器。
- 請求項1に記載の電気音響変換器において、前記音出力手段の振動板と前記集音手段の圧電高分子フィルムの集音面が対向していることを特徴とする電気音響変換器。
- 請求項1又は2に記載の電気音響変換器において、前記音出力手段がバランストアーマチュア型の電気音響変換器であることを特徴とする電気音響変換器。
- 請求項1乃至請求項3のいずれかに記載の電気音響変換器において、前記圧電高分子フィルムが多孔性高分子フィルムであることを特徴とする電気音響変換器。
- 請求項1乃至請求項4のいずれかに記載の電気音響変換器と、前記集音手段の出力信号から所定の低域周波数成分を抽出するフィルタ及びその抽出した低域周波数成分を反転増幅する増幅器からなる低域反転増幅部を備え、この低域反転増幅部の出力信号を前記音出力手段に負帰還させることを特徴とするこもり低減装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2012186017A JP5883364B2 (ja) | 2012-08-27 | 2012-08-27 | 電気音響変換器とそれを用いたこもり低減装置 |
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JP2012186017A JP5883364B2 (ja) | 2012-08-27 | 2012-08-27 | 電気音響変換器とそれを用いたこもり低減装置 |
Publications (2)
Publication Number | Publication Date |
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JP2014045289A JP2014045289A (ja) | 2014-03-13 |
JP5883364B2 true JP5883364B2 (ja) | 2016-03-15 |
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JP2012186017A Active JP5883364B2 (ja) | 2012-08-27 | 2012-08-27 | 電気音響変換器とそれを用いたこもり低減装置 |
Country Status (1)
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JP (1) | JP5883364B2 (ja) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60127092U (ja) * | 1984-02-04 | 1985-08-27 | 日本圧電気株式会社 | イヤホンマイクロホン |
JPH05333873A (ja) * | 1992-05-29 | 1993-12-17 | Sony Corp | 雑音低減装置 |
JP4359599B2 (ja) * | 2006-02-28 | 2009-11-04 | リオン株式会社 | 補聴器 |
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- 2012-08-27 JP JP2012186017A patent/JP5883364B2/ja active Active
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