JP2011512108A - 導波路電気音響変換 - Google Patents
導波路電気音響変換 Download PDFInfo
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- JP2011512108A JP2011512108A JP2010546815A JP2010546815A JP2011512108A JP 2011512108 A JP2011512108 A JP 2011512108A JP 2010546815 A JP2010546815 A JP 2010546815A JP 2010546815 A JP2010546815 A JP 2010546815A JP 2011512108 A JP2011512108 A JP 2011512108A
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- acoustic
- waveguide
- volume
- loudspeaker assembly
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- 238000006243 chemical reaction Methods 0.000 title 1
- 230000005855 radiation Effects 0.000 claims abstract description 29
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 230000004044 response Effects 0.000 claims description 9
- 230000001066 destructive effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 9
- 230000004888 barrier function Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 239000012814 acoustic material Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/2853—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line
- H04R1/2857—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line for loudspeaker transducers
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- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
Description
11 閉口端(音響ドライバ端)
12 導波路
18 開口端
22、29 チャンバ(音響体積部)
34、38 開口部
42 バッフル
46、48 バリア
Claims (15)
- 音響導波路と、
第一の表面が前記音響導波路内に音波を放射して該音波が前記音響導波路から放射されるように、前記音響導波路に取り付けられた音響ドライバと、
前記音響導波路から放射される音波の振幅を増大させるために、前記音響導波路に音響的に結合された音響体積部と、を備えたラウドスピーカアセンブリ。 - 前記音響体積部が、前記音響導波路の有効音響長さに等しい波長の音波の振幅を増大されるためのものである、請求項1に記載のラウドスピーカアセンブリ。
- 前記音響導波路が、前記音響導波路からの音響放射を増大させるために前記音響導波路に音響的に結合された音響体積部の壁を形成する湾曲した壁を有する、請求項1に記載のラウドスピーカアセンブリ。
- 前記音響導波路の壁が、前記音響導波路に結合された他の音響体積部の壁を形成している、請求項3に記載のラウドスピーカアセンブリ。
- 前記音響体積部内に配置された電子部品を更に備えた請求項3に記載のラウドスピーカアセンブリ。
- 前記音響導波路を前記音響体積部に音響的に結合するための結合体積部を更に備え、前記結合体積部及び前記音響体積部の組み合わせが、前記ラウドスピーカアセンブリの動作範囲外のヘルムホルツ共鳴周波数を有するヘルムホルツ共鳴器を形成している、請求項3に記載のラウドスピーカアセンブリ。
- 前記音響ドライバが、該音響ドライバの第二の表面が周囲環境に直接放射するように、取り付けられている、請求項1に記載のラウドスピーカアセンブリ。
- 前記音響導波路が、前記音響体積部を実質的に画定する複数の湾曲部分を備える、請求項1に記載のラウドスピーカアセンブリ。
- 前記音響導波路が、他の音響体積部を実質的に画定している、請求項8に記載のラウドスピーカアセンブリ。
- 前記音響体積部がティアドロップ型である、請求項8に記載のラウドスピーカアセンブリ。
- 前記音響導波路が有効音響長さを有し、前記音響体積部が複数の音響経路を有し、各音響経路が、
前記ラウドスピーカアセンブリの有効音響長さの10%未満の長さ、又は、
前記ラウドスピーカアセンブリの有効音響長さの10%よりも大きく周波数応答のディップを生じさせない長さ範囲内の長さを有する、請求項1に記載のラウドスピーカアセンブリ。 - 前記音響体積部が、音響経路の長さが前記長さ範囲内にあるようにするバッフル構造を備える、請求項11に記載のラウドスピーカアセンブリ。
- 前記音響導波路が実質的に一定の断面積を有する、請求項1に記載のラウドスピーカアセンブリ。
- 前記音響ドライバに隣接する前記音響導波路の閉口端が、前記音響導波路の開口端よりも大きな断面積を有する、請求項1に記載のラウドスピーカアセンブリ。
- 音響導波路と、
第一の放射表面及び第二の放射表面を有する音響ドライバであって、前記第一の放射表面が前記音響導波路内に音響エネルギーを放射し、音響放射が前記音響導波路から放射されるように前記音響導波路に取り付けられた音響ドライバと、を備えたラウドスピーカ装置であって、
前記第二の放射表面からの放射が前記音響導波路からの放射と位相がずれているキャンセル周波数が、前記音響導波路からの放射と前記第二の放射表面からの放射との間の破壊的な干渉をもたらし、前記キャンセル周波数における前記ラウドスピーカ装置からの音響出力の減少をもたらすことを特徴とし、
前記音響導波路からの放射の振幅を増大させて前記キャンセル周波数における前記ラウドスピーカ装置からの音響出力の減少を少なくするために前記音響導波路に音響的に結合された音響体積部を更に備えたラウドスピーカ装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/020,978 US8351629B2 (en) | 2008-02-21 | 2008-02-21 | Waveguide electroacoustical transducing |
US12/020,978 | 2008-02-21 | ||
PCT/US2009/032241 WO2009105313A1 (en) | 2008-02-21 | 2009-01-28 | Waveguide electroacoustical transducing |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2011512108A true JP2011512108A (ja) | 2011-04-14 |
JP2011512108A5 JP2011512108A5 (ja) | 2012-08-02 |
JP5472880B2 JP5472880B2 (ja) | 2014-04-16 |
Family
ID=40496575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010546815A Active JP5472880B2 (ja) | 2008-02-21 | 2009-01-28 | 導波路電気音響変換 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8351629B2 (ja) |
EP (1) | EP2258115B1 (ja) |
JP (1) | JP5472880B2 (ja) |
CN (1) | CN101933341B (ja) |
CA (1) | CA2710025C (ja) |
WO (1) | WO2009105313A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013538509A (ja) * | 2010-08-12 | 2013-10-10 | ボーズ・コーポレーション | 能動的および受動的な指向性音響放射 |
JP2013538538A (ja) * | 2010-09-21 | 2013-10-10 | ボーズ・コーポレーション | ビデオディスプレイデバイスのための低周波筐体 |
WO2019235317A1 (ja) * | 2018-06-08 | 2019-12-12 | ヤマハ株式会社 | スピーカ |
Families Citing this family (18)
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US8615097B2 (en) | 2008-02-21 | 2013-12-24 | Bose Corportion | Waveguide electroacoustical transducing |
US8351629B2 (en) | 2008-02-21 | 2013-01-08 | Robert Preston Parker | Waveguide electroacoustical transducing |
US8351630B2 (en) | 2008-05-02 | 2013-01-08 | Bose Corporation | Passive directional acoustical radiating |
WO2011007436A1 (ja) * | 2009-07-16 | 2011-01-20 | 株式会社 東芝 | 音響再生装置 |
WO2011031794A2 (en) * | 2009-09-08 | 2011-03-17 | Clements Philip R | Inverse horn loudspeakers |
US8139774B2 (en) | 2010-03-03 | 2012-03-20 | Bose Corporation | Multi-element directional acoustic arrays |
US20110242504A1 (en) * | 2010-03-31 | 2011-10-06 | Andrew Olcott | Rear Projection System |
US8553894B2 (en) | 2010-08-12 | 2013-10-08 | Bose Corporation | Active and passive directional acoustic radiating |
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CN110089128B (zh) * | 2016-12-14 | 2020-08-25 | 杜比实验室特许公司 | 具有交叉耦合的双波柱的多驱动器扬声器及其输出方法 |
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JP2019213149A (ja) * | 2018-06-08 | 2019-12-12 | ヤマハ株式会社 | スピーカ |
JP7135463B2 (ja) | 2018-06-08 | 2022-09-13 | ヤマハ株式会社 | スピーカ |
Also Published As
Publication number | Publication date |
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US8351629B2 (en) | 2013-01-08 |
US20090214066A1 (en) | 2009-08-27 |
EP2258115A1 (en) | 2010-12-08 |
CN101933341A (zh) | 2010-12-29 |
CA2710025A1 (en) | 2009-08-27 |
WO2009105313A1 (en) | 2009-08-27 |
EP2258115B1 (en) | 2017-07-19 |
CN101933341B (zh) | 2014-09-17 |
CA2710025C (en) | 2015-06-16 |
JP5472880B2 (ja) | 2014-04-16 |
AU2009215768A1 (en) | 2009-08-27 |
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