JP5338040B2 - 音声会議装置 - Google Patents
音声会議装置 Download PDFInfo
- Publication number
- JP5338040B2 JP5338040B2 JP2007147997A JP2007147997A JP5338040B2 JP 5338040 B2 JP5338040 B2 JP 5338040B2 JP 2007147997 A JP2007147997 A JP 2007147997A JP 2007147997 A JP2007147997 A JP 2007147997A JP 5338040 B2 JP5338040 B2 JP 5338040B2
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- JP
- Japan
- Prior art keywords
- audio
- microphone
- sound
- sound collection
- audio signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000005236 sound signal Effects 0.000 claims description 31
- 230000001934 delay Effects 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 4
- 230000002194 synthesizing effect Effects 0.000 claims description 4
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 230000003111 delayed effect Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 230000010363 phase shift Effects 0.000 description 24
- 238000003491 array Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000002592 echocardiography 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
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
-
- 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
- H04R2201/401—2D or 3D 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
- H04R2201/403—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
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic
- H04R2430/23—Direction finding using a sum-delay beam-former
Description
10A〜10H−マイクアレイ
13−スピーカ
21−マイク信号処理回路
22−エコーキャンセラ
23−入出力I/F
Claims (4)
- 1つの軸を中心とする円周上に配列され、前記軸に直交する平面において前記円周の法線方向に向けて収音方向が設定された指向性を有する複数の収音部と、
各収音部が出力する音声信号の位相を、各収音部の設置位置の前記円周上における角度に応じて位相をシフトさせることにより、回転させてから合成する音声信号処理部と、
を備え、
前記音声信号処理部は、前記軸を挟んで向かい合う位置の収音部が出力する音声信号の位相を遅らせて加算部に出力し、反転させていることを特徴とする音声会議装置。 - 前記収音部は、複数のマイクユニットを配列してなるマイクアレイと、各マイクユニットが収音した音声信号を遅延して合成することにより収音部に指向性を持たせる遅延処理部と、からなる請求項1に記載の音声会議装置。
- 前記軸が延びる方向に放音方向が設定されたスピーカを備えた請求項1、または請求項2に記載の音声会議装置。
- 前記スピーカに入力する音声信号をフィルタ処理した疑似帰還信号を前記音声信号処理部の出力信号から減算し、出力する適応型エコーキャンセラを備えた請求項3に記載の音声会議装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007147997A JP5338040B2 (ja) | 2007-06-04 | 2007-06-04 | 音声会議装置 |
EP08776929A EP2154907A1 (en) | 2007-06-04 | 2008-05-28 | Acoustic device |
US12/663,220 US8526633B2 (en) | 2007-06-04 | 2008-05-28 | Acoustic apparatus |
PCT/JP2008/059814 WO2008149747A1 (ja) | 2007-06-04 | 2008-05-28 | 音響装置 |
CN200880018654.XA CN101682808B (zh) | 2007-06-04 | 2008-05-28 | 声学设备 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007147997A JP5338040B2 (ja) | 2007-06-04 | 2007-06-04 | 音声会議装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008301401A JP2008301401A (ja) | 2008-12-11 |
JP5338040B2 true JP5338040B2 (ja) | 2013-11-13 |
Family
ID=40093566
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007147997A Active JP5338040B2 (ja) | 2007-06-04 | 2007-06-04 | 音声会議装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8526633B2 (ja) |
EP (1) | EP2154907A1 (ja) |
JP (1) | JP5338040B2 (ja) |
CN (1) | CN101682808B (ja) |
WO (1) | WO2008149747A1 (ja) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4929740B2 (ja) * | 2006-01-31 | 2012-05-09 | ヤマハ株式会社 | 音声会議装置 |
US9113264B2 (en) | 2009-11-12 | 2015-08-18 | Robert H. Frater | Speakerphone and/or microphone arrays and methods and systems of the using the same |
DE102010003837A1 (de) * | 2010-04-09 | 2011-10-13 | Sennheiser Electronic Gmbh & Co. Kg | Mikrofoneinheit |
GB2494849A (en) * | 2011-04-14 | 2013-03-27 | Orbitsound Ltd | Microphone assembly |
US9685730B2 (en) | 2014-09-12 | 2017-06-20 | Steelcase Inc. | Floor power distribution system |
US9584910B2 (en) | 2014-12-17 | 2017-02-28 | Steelcase Inc. | Sound gathering system |
US9554207B2 (en) | 2015-04-30 | 2017-01-24 | Shure Acquisition Holdings, Inc. | Offset cartridge microphones |
US9565493B2 (en) | 2015-04-30 | 2017-02-07 | Shure Acquisition Holdings, Inc. | Array microphone system and method of assembling the same |
JP6606784B2 (ja) * | 2015-09-29 | 2019-11-20 | 本田技研工業株式会社 | 音声処理装置および音声処理方法 |
US10367948B2 (en) | 2017-01-13 | 2019-07-30 | Shure Acquisition Holdings, Inc. | Post-mixing acoustic echo cancellation systems and methods |
CN108694957B (zh) * | 2018-04-08 | 2021-08-31 | 湖北工业大学 | 基于圆形麦克风阵列波束形成的回声抵消设计方法 |
US11523212B2 (en) | 2018-06-01 | 2022-12-06 | Shure Acquisition Holdings, Inc. | Pattern-forming microphone array |
US11297423B2 (en) | 2018-06-15 | 2022-04-05 | Shure Acquisition Holdings, Inc. | Endfire linear array microphone |
CN112889296A (zh) | 2018-09-20 | 2021-06-01 | 舒尔获得控股公司 | 用于阵列麦克风的可调整的波瓣形状 |
EP3667662B1 (en) * | 2018-12-12 | 2022-08-10 | Panasonic Intellectual Property Corporation of America | Acoustic echo cancellation device, acoustic echo cancellation method and acoustic echo cancellation program |
EP3942842A1 (en) | 2019-03-21 | 2022-01-26 | Shure Acquisition Holdings, Inc. | Housings and associated design features for ceiling array microphones |
CN113841421A (zh) | 2019-03-21 | 2021-12-24 | 舒尔获得控股公司 | 具有抑制功能的波束形成麦克风瓣的自动对焦、区域内自动对焦、及自动配置 |
US11558693B2 (en) | 2019-03-21 | 2023-01-17 | Shure Acquisition Holdings, Inc. | Auto focus, auto focus within regions, and auto placement of beamformed microphone lobes with inhibition and voice activity detection functionality |
TW202101422A (zh) | 2019-05-23 | 2021-01-01 | 美商舒爾獲得控股公司 | 可操縱揚聲器陣列、系統及其方法 |
TW202105369A (zh) | 2019-05-31 | 2021-02-01 | 美商舒爾獲得控股公司 | 整合語音及雜訊活動偵測之低延時自動混波器 |
US11297426B2 (en) | 2019-08-23 | 2022-04-05 | Shure Acquisition Holdings, Inc. | One-dimensional array microphone with improved directivity |
US11552611B2 (en) | 2020-02-07 | 2023-01-10 | Shure Acquisition Holdings, Inc. | System and method for automatic adjustment of reference gain |
US11706562B2 (en) | 2020-05-29 | 2023-07-18 | Shure Acquisition Holdings, Inc. | Transducer steering and configuration systems and methods using a local positioning system |
WO2022165007A1 (en) | 2021-01-28 | 2022-08-04 | Shure Acquisition Holdings, Inc. | Hybrid audio beamforming system |
Family Cites Families (24)
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US3573400A (en) * | 1968-08-14 | 1971-04-06 | Bell Telephone Labor Inc | Directional microphone |
US3979712A (en) * | 1971-11-05 | 1976-09-07 | The United States Of America As Represented By The Secretary Of The Navy | Sensor array acoustic detection system |
NL7713076A (nl) * | 1977-11-28 | 1979-05-30 | Johannes Cornelis Maria Van De | Werkwijze en inrichting voor het opnemen van geluid en/of voor het bewerken van geluid voor- afgaande aan het weergeven daarvan. |
JPS5939198A (ja) * | 1982-08-27 | 1984-03-03 | Victor Co Of Japan Ltd | マイクロホン装置 |
JPS6156600A (ja) * | 1984-08-27 | 1986-03-22 | Kokusai Gijutsu Kaihatsu Kk | 補聴器 |
JPH0657079B2 (ja) * | 1986-12-08 | 1994-07-27 | 日本電信電話株式会社 | 複数対のマイクロホン出力の位相切替収音装置 |
JP2948304B2 (ja) * | 1990-11-13 | 1999-09-13 | 日本電信電話株式会社 | 受音方式 |
FR2682251B1 (fr) * | 1991-10-02 | 1997-04-25 | Prescom Sarl | Procede et systeme de prise de son, et appareil de prise et de restitution de son. |
EP0789980B1 (en) * | 1994-10-31 | 2002-05-08 | Mike Godfrey | Global sound microphone system |
JPH08204803A (ja) | 1995-01-30 | 1996-08-09 | Nec Eng Ltd | 音声会議装置 |
US5862240A (en) * | 1995-02-10 | 1999-01-19 | Sony Corporation | Microphone device |
JP3797751B2 (ja) * | 1996-11-27 | 2006-07-19 | 富士通株式会社 | マイクロホンシステム |
ATE203869T1 (de) * | 1997-04-10 | 2001-08-15 | Interkom Electronic Kock & Mre | Schallaufnahmeeinrichtung, insbesondere für eine sprechstelle |
JP2000184051A (ja) * | 1998-12-15 | 2000-06-30 | Nec Corp | 音声会議装置及び集音方法 |
US7068801B1 (en) * | 1998-12-18 | 2006-06-27 | National Research Council Of Canada | Microphone array diffracting structure |
CN100477704C (zh) * | 2000-05-26 | 2009-04-08 | 皇家菲利浦电子有限公司 | 用于与自适应波束形成组合的回声抵消的方法和设备 |
US20030059061A1 (en) * | 2001-09-14 | 2003-03-27 | Sony Corporation | Audio input unit, audio input method and audio input and output unit |
JP2003087887A (ja) * | 2001-09-14 | 2003-03-20 | Sony Corp | 音声入出力装置 |
JP3932928B2 (ja) * | 2002-02-21 | 2007-06-20 | ヤマハ株式会社 | 拡声装置 |
DK174558B1 (da) * | 2002-03-15 | 2003-06-02 | Bruel & Kjaer Sound & Vibratio | Stråleformende transducer-antennesystem |
JP4639639B2 (ja) * | 2004-05-18 | 2011-02-23 | ソニー株式会社 | マイクロフォン信号生成方法および通話装置 |
US8050432B2 (en) * | 2005-03-22 | 2011-11-01 | Bloomline Acoustics B.V. | Sound system |
JP4551275B2 (ja) | 2005-05-26 | 2010-09-22 | 日本電信電話株式会社 | ハウリング防止方法、その装置、そのプログラムおよびその記録媒体 |
JP2007005969A (ja) * | 2005-06-22 | 2007-01-11 | Yamaha Corp | マイクロフォンアレイ装置 |
-
2007
- 2007-06-04 JP JP2007147997A patent/JP5338040B2/ja active Active
-
2008
- 2008-05-28 US US12/663,220 patent/US8526633B2/en active Active
- 2008-05-28 EP EP08776929A patent/EP2154907A1/en not_active Withdrawn
- 2008-05-28 WO PCT/JP2008/059814 patent/WO2008149747A1/ja active Application Filing
- 2008-05-28 CN CN200880018654.XA patent/CN101682808B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
WO2008149747A1 (ja) | 2008-12-11 |
EP2154907A1 (en) | 2010-02-17 |
CN101682808A (zh) | 2010-03-24 |
JP2008301401A (ja) | 2008-12-11 |
CN101682808B (zh) | 2013-10-23 |
US20100166195A1 (en) | 2010-07-01 |
US8526633B2 (en) | 2013-09-03 |
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