JP2007129485A - 収音装置 - Google Patents
収音装置 Download PDFInfo
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- JP2007129485A JP2007129485A JP2005320043A JP2005320043A JP2007129485A JP 2007129485 A JP2007129485 A JP 2007129485A JP 2005320043 A JP2005320043 A JP 2005320043A JP 2005320043 A JP2005320043 A JP 2005320043A JP 2007129485 A JP2007129485 A JP 2007129485A
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- 230000005236 sound signal Effects 0.000 description 46
- 238000010586 diagram Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- NCGICGYLBXGBGN-UHFFFAOYSA-N 3-morpholin-4-yl-1-oxa-3-azonia-2-azanidacyclopent-3-en-5-imine;hydrochloride Chemical compound Cl.[N-]1OC(=N)C=[N+]1N1CCOCC1 NCGICGYLBXGBGN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 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
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
- H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
-
- 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
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
- H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
- H04R2201/403—Linear arrays of transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
- H04R2201/405—Non-uniform arrays of transducers or a plurality of uniform arrays with different transducer spacing
Landscapes
- 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)
- Circuit For Audible Band Transducer (AREA)
Abstract
【解決手段】内側10個のマイクユニット353は、等距離dに配置されている。一方でこの区間よりも外側のマイクユニット353は、ユニット数に基づいてユニット間距離を整数倍(d×整数)に広げて配列されている。つまり、内側10個は距離dで配列し、それよりも外側は、ユニット間距離を距離2d、距離3d、距離4dと広げて配列する。これにより、コストを抑えた少ないマイク個数でありながらアレイ幅Lを大きくして低周波数帯域の指向制御特性を確保することができるとともに、配列内側の密配列区間では多数のマイクユニットが距離dで等間隔に配列されるため、別の収音ビームを発生させずに高周波数帯域の指向制御特性を確保することができる。
【選択図】図5
Description
θ1=sin−1(v/fdn)・・・数式1
ここで、例えば各マイクユニットが間隔dで等距離に配置されているとすると、マイクアレイの幅Lは、L=d(n−1)で表され、ビーム幅θ1は、数式1により、マイクユニットの間隔d、アレイマイクの幅L、および周波数fによって決定される。
2−装置本体
3−脚部
4−操作部
231−スピーカアレイ
254−スピーカユニット
331−マイクアレイ
353−マイクユニット
Claims (2)
- 複数のマイクユニットを直線上に配列した収音装置であって、
前記マイクユニットを、配列の最も内側である配列原点から所定数等間隔に配列した密配列区間、
前記密配列区間よりも外側で、配列ユニット数に基づいて各ユニット間距離が広がるように配列した疎配列区間、
で配列したことを特徴とする収音装置。 - 前記疎配列区間は、前記密配列区間におけるユニット間距離の整数倍にユニット間距離が広がるようにマイクユニットを配列したことを特徴とする請求項1に記載の収音装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005320043A JP5028786B2 (ja) | 2005-11-02 | 2005-11-02 | 収音装置 |
EP06822658A EP1947902A4 (en) | 2005-11-02 | 2006-10-31 | SOUND SENSOR |
CN2006800391418A CN101292566B (zh) | 2005-11-02 | 2006-10-31 | 收音装置 |
PCT/JP2006/321729 WO2007052645A1 (ja) | 2005-11-02 | 2006-10-31 | 収音装置 |
US12/108,593 US20080260178A1 (en) | 2005-11-02 | 2008-04-24 | Audio signal transmission/reception device and microphone apparatus thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005320043A JP5028786B2 (ja) | 2005-11-02 | 2005-11-02 | 収音装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007129485A true JP2007129485A (ja) | 2007-05-24 |
JP5028786B2 JP5028786B2 (ja) | 2012-09-19 |
Family
ID=38005798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005320043A Active JP5028786B2 (ja) | 2005-11-02 | 2005-11-02 | 収音装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20080260178A1 (ja) |
EP (1) | EP1947902A4 (ja) |
JP (1) | JP5028786B2 (ja) |
CN (1) | CN101292566B (ja) |
WO (1) | WO2007052645A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013093807A (ja) * | 2011-10-27 | 2013-05-16 | Toa Corp | マイクロホン装置 |
WO2014199446A1 (ja) * | 2013-06-11 | 2014-12-18 | Toa株式会社 | マイクロホン装置 |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4965847B2 (ja) * | 2005-10-27 | 2012-07-04 | ヤマハ株式会社 | 音声信号送受信装置 |
US8238584B2 (en) * | 2005-11-02 | 2012-08-07 | Yamaha Corporation | Voice signal transmitting/receiving apparatus |
JP4747949B2 (ja) * | 2006-05-25 | 2011-08-17 | ヤマハ株式会社 | 音声会議装置 |
WO2009051132A1 (ja) | 2007-10-19 | 2009-04-23 | Nec Corporation | 信号処理システムと、その装置、方法及びそのプログラム |
WO2012153537A1 (ja) * | 2011-05-11 | 2012-11-15 | パナソニック株式会社 | 映像表示装置 |
CN108810732B (zh) | 2014-09-30 | 2020-03-24 | 苹果公司 | 扬声器 |
USRE49437E1 (en) | 2014-09-30 | 2023-02-28 | Apple Inc. | Audio driver and power supply unit architecture |
DE102014220544A1 (de) | 2014-10-09 | 2016-04-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Lautsprecherarray |
CN109313465A (zh) * | 2016-04-05 | 2019-02-05 | 惠普发展公司,有限责任合伙企业 | 用于多个麦克风和扬声器系统与主机对接的音频接口 |
US10587950B2 (en) | 2016-09-23 | 2020-03-10 | Apple Inc. | Speaker back volume extending past a speaker diaphragm |
CN108156545B (zh) * | 2018-02-11 | 2024-02-09 | 北京中电慧声科技有限公司 | 一种阵列麦克风 |
CN108696781A (zh) * | 2018-05-17 | 2018-10-23 | 四川湖山电器股份有限公司 | 一种直线型排列的麦克风在空间形成指向性的方法 |
USD900786S1 (en) * | 2018-06-19 | 2020-11-03 | Lg Electronics Inc. | Sound bar |
US11114102B2 (en) * | 2019-01-16 | 2021-09-07 | Lg Electronics Inc. | Appliance including voice recognition device |
USD938936S1 (en) * | 2019-04-03 | 2021-12-21 | Beijing Xiaomi Mobile Software Co., Ltd. | Host for television |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5969800A (ja) * | 1982-10-14 | 1984-04-20 | 三菱電機株式会社 | 音声認識用集音装置 |
JPH0286397A (ja) * | 1988-09-22 | 1990-03-27 | Nippon Telegr & Teleph Corp <Ntt> | マイクロホンアレー |
JPH02114799A (ja) * | 1988-10-25 | 1990-04-26 | Nippon Telegr & Teleph Corp <Ntt> | 立体音像の採取装置と再生装置、立体音像情報の送出方法と再生装置、立体音像情報の記録方法と再生装置 |
JPH04318798A (ja) * | 1991-04-18 | 1992-11-10 | Matsushita Electric Ind Co Ltd | マイクロホン装置 |
US5657393A (en) * | 1993-07-30 | 1997-08-12 | Crow; Robert P. | Beamed linear array microphone system |
US5848170A (en) * | 1995-12-22 | 1998-12-08 | France Telecom | Acoustic antenna for computer workstation |
JP2000354290A (ja) * | 1999-06-11 | 2000-12-19 | Toa Corp | マイクロホン装置 |
JP2001042888A (ja) * | 1999-07-29 | 2001-02-16 | Omron Corp | マイクロホンの設置方法および音信号処理方法、およびこれらの方法を用いた音信号の入力装置、記録装置、処理装置、ならびに音声認識処理装置、音信号処理用のプログラムが記録された記録媒体 |
WO2003037034A1 (fr) * | 2001-10-26 | 2003-05-01 | Get-Enst | Dispositif de saisie et restitution du son utilisant plusieurs capteurs |
WO2004075601A1 (en) * | 2003-02-24 | 2004-09-02 | 1...Limited | Sound beam loudspeaker system |
JP2005260743A (ja) * | 2004-03-12 | 2005-09-22 | Advanced Telecommunication Research Institute International | マイクロホンアレー |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0591588A (ja) | 1991-09-27 | 1993-04-09 | Railway Technical Res Inst | 指向方向可変指向性収音装置 |
NL9401860A (nl) | 1994-11-08 | 1996-06-03 | Duran Bv | Luidsprekersysteem met bestuurde richtinggevoeligheid. |
JP3975007B2 (ja) * | 1998-07-10 | 2007-09-12 | 株式会社オーディオテクニカ | 単一指向性マイクロホン |
DE19943875A1 (de) * | 1999-09-14 | 2001-03-15 | Thomson Brandt Gmbh | System zur Sprachsteuerung mit einem Mikrofonarray |
US6494363B1 (en) * | 2000-01-13 | 2002-12-17 | Ncr Corporation | Self-service terminal |
US20030059061A1 (en) * | 2001-09-14 | 2003-03-27 | Sony Corporation | Audio input unit, audio input method and audio input and output unit |
US20040041902A1 (en) * | 2002-04-11 | 2004-03-04 | Polycom, Inc. | Portable videoconferencing system |
EP1638810B1 (en) * | 2003-05-19 | 2017-11-01 | Gentex Corporation | Rearview mirror assemblies incorporating hands-free telephone components |
US7515721B2 (en) * | 2004-02-09 | 2009-04-07 | Microsoft Corporation | Self-descriptive microphone array |
US7260228B2 (en) * | 2004-03-10 | 2007-08-21 | Altec Lansing, A Division Of Plantronics, Inc. | Optimum driver spacing for a line array with a minimum number of radiating elements |
JP2005320043A (ja) | 2004-05-11 | 2005-11-17 | Wakon Danbooru Kk | 段ボール桁材及びその桁材を用いた紙製パレット |
-
2005
- 2005-11-02 JP JP2005320043A patent/JP5028786B2/ja active Active
-
2006
- 2006-10-31 WO PCT/JP2006/321729 patent/WO2007052645A1/ja active Application Filing
- 2006-10-31 EP EP06822658A patent/EP1947902A4/en not_active Withdrawn
- 2006-10-31 CN CN2006800391418A patent/CN101292566B/zh active Active
-
2008
- 2008-04-24 US US12/108,593 patent/US20080260178A1/en not_active Abandoned
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5969800A (ja) * | 1982-10-14 | 1984-04-20 | 三菱電機株式会社 | 音声認識用集音装置 |
JPH0286397A (ja) * | 1988-09-22 | 1990-03-27 | Nippon Telegr & Teleph Corp <Ntt> | マイクロホンアレー |
JPH02114799A (ja) * | 1988-10-25 | 1990-04-26 | Nippon Telegr & Teleph Corp <Ntt> | 立体音像の採取装置と再生装置、立体音像情報の送出方法と再生装置、立体音像情報の記録方法と再生装置 |
JPH04318798A (ja) * | 1991-04-18 | 1992-11-10 | Matsushita Electric Ind Co Ltd | マイクロホン装置 |
US5657393A (en) * | 1993-07-30 | 1997-08-12 | Crow; Robert P. | Beamed linear array microphone system |
US5848170A (en) * | 1995-12-22 | 1998-12-08 | France Telecom | Acoustic antenna for computer workstation |
JP2000354290A (ja) * | 1999-06-11 | 2000-12-19 | Toa Corp | マイクロホン装置 |
JP2001042888A (ja) * | 1999-07-29 | 2001-02-16 | Omron Corp | マイクロホンの設置方法および音信号処理方法、およびこれらの方法を用いた音信号の入力装置、記録装置、処理装置、ならびに音声認識処理装置、音信号処理用のプログラムが記録された記録媒体 |
WO2003037034A1 (fr) * | 2001-10-26 | 2003-05-01 | Get-Enst | Dispositif de saisie et restitution du son utilisant plusieurs capteurs |
WO2004075601A1 (en) * | 2003-02-24 | 2004-09-02 | 1...Limited | Sound beam loudspeaker system |
JP2005260743A (ja) * | 2004-03-12 | 2005-09-22 | Advanced Telecommunication Research Institute International | マイクロホンアレー |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013093807A (ja) * | 2011-10-27 | 2013-05-16 | Toa Corp | マイクロホン装置 |
WO2014199446A1 (ja) * | 2013-06-11 | 2014-12-18 | Toa株式会社 | マイクロホン装置 |
JPWO2014199446A1 (ja) * | 2013-06-11 | 2017-02-23 | Toa株式会社 | マイクロホン装置 |
US9826307B2 (en) | 2013-06-11 | 2017-11-21 | Toa Corporation | Microphone array including at least three microphone units |
Also Published As
Publication number | Publication date |
---|---|
CN101292566B (zh) | 2011-11-30 |
EP1947902A1 (en) | 2008-07-23 |
EP1947902A4 (en) | 2010-06-02 |
JP5028786B2 (ja) | 2012-09-19 |
CN101292566A (zh) | 2008-10-22 |
WO2007052645A1 (ja) | 2007-05-10 |
US20080260178A1 (en) | 2008-10-23 |
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