JPWO2006092841A1 - 受音装置 - Google Patents
受音装置 Download PDFInfo
- Publication number
- JPWO2006092841A1 JPWO2006092841A1 JP2007505761A JP2007505761A JPWO2006092841A1 JP WO2006092841 A1 JPWO2006092841 A1 JP WO2006092841A1 JP 2007505761 A JP2007505761 A JP 2007505761A JP 2007505761 A JP2007505761 A JP 2007505761A JP WO2006092841 A1 JPWO2006092841 A1 JP WO2006092841A1
- Authority
- JP
- Japan
- Prior art keywords
- sound
- diffuse reflection
- receiving device
- sound receiving
- microphone
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims description 41
- 239000000126 substance Substances 0.000 claims description 7
- 235000019589 hardness Nutrition 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 14
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 12
- 229920002379 silicone rubber Polymers 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 238000005314 correlation function Methods 0.000 description 4
- 238000011109 contamination Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 230000007423 decrease 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
- H04R1/32—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
- 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
- H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
- H04R1/342—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for microphones
-
- 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
- H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
-
- 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
- H04R2430/25—Array processing for suppression of unwanted side-lobes in directivity characteristics, e.g. a blocking matrix
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- General Health & Medical Sciences (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
Description
101 受音装置
102 信号処理部
103 スピーカ
110 筐体
111,112 マイクロホン
120(200,400) 拡散反射部材
SW,SWa,SWb 音波
SWc 反射音波
つぎに、この発明の実施の形態(実施例1,2)にかかる受音装置の適用例について説明する。図7〜図9は、この発明の実施の形態にかかる受音装置の適用例を示す説明図である。図7は、ビデオカメラに適用した例である。受音装置101は、ビデオカメラ700に内蔵されており、前面201とスリット板部701とが当接する。
つぎに、この発明の実施の形態(実施例1,2)にかかる受音装置の適用例について説明する。図7〜図9は、この発明の実施の形態にかかる受音装置の適用例を示す説明図である。図7は、ビデオカメラに適用した例である。受音装置101は、ビデオカメラ700に内蔵されており、前面201とスリット板部701とが当接する。
101 受音装置
102 信号処理部
103 スピーカ
110 筐体
111,112 マイクロホン
120(200,400) 拡散反射部材
SW,SWa,SWb 音波
SWc 反射音波
Claims (6)
- 到来してくる音波を受音するマイクロホンと、
前記マイクロホンを支持するとともに、空隙が形成されている筺体と、
前記筺体の空隙を通過する音波を拡散反射させる拡散反射部材と、
を備えることを特徴とする受音装置。 - 前記拡散反射部材における前記空隙を通過する音波の入射面が、ランダムな凹凸形状に構成されていることを特徴とする請求項1に記載の受音装置。
- 前記拡散反射部材は、当該部材の内部に、前記空隙を通過する音波を拡散反射させる複数の拡散反射物質をランダムに含んだ構成であることを特徴とする請求項1に記載の受音装置。
- 前記複数の拡散反射物質は、互いに硬さが異なる物質であることを特徴とする請求項3に記載の受音装置。
- 前記複数の拡散反射物質は、互いに溶解しない物質であることを特徴とする請求項4に記載の受音装置。
- 前記拡散反射部材は、当該部材の内部に、前記空隙を通過する音波の伝搬速度を空気よりも遅くするゲル状物質を含んだ構成であることを特徴とする請求項1、3〜5のいずれか一つに記載の受音装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2005/003336 WO2006092841A1 (ja) | 2005-02-28 | 2005-02-28 | 受音装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2006092841A1 true JPWO2006092841A1 (ja) | 2008-07-24 |
JP5003482B2 JP5003482B2 (ja) | 2012-08-15 |
Family
ID=36940887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007505761A Active JP5003482B2 (ja) | 2005-02-28 | 2005-02-28 | 受音装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8223977B2 (ja) |
EP (1) | EP1855505B1 (ja) |
JP (1) | JP5003482B2 (ja) |
KR (1) | KR100963363B1 (ja) |
CN (1) | CN101133677B (ja) |
WO (1) | WO2006092841A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5168079B2 (ja) * | 2008-10-22 | 2013-03-21 | ヤマハ株式会社 | 音響装置 |
JP5423370B2 (ja) * | 2009-12-10 | 2014-02-19 | 船井電機株式会社 | 音源探査装置 |
US9955252B2 (en) | 2013-10-17 | 2018-04-24 | Audeze, Llc | Planar magnetic electro-acoustic transducer having multiple diaphragms |
US11004439B2 (en) * | 2018-02-26 | 2021-05-11 | Toyota Motor Engineering & Manufacturing North America, Inc. | Acoustic absorber |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61117998A (ja) * | 1984-11-13 | 1986-06-05 | Nippon Telegr & Teleph Corp <Ntt> | マイクロホン室 |
WO1995032496A1 (fr) * | 1994-05-23 | 1995-11-30 | Zeon Kasei Co., Ltd. | Panneau permettant de realiser une paroi d'insonorisation |
JP2003163726A (ja) * | 2001-11-27 | 2003-06-06 | Aika Engineering:Kk | 携帯電話端末機 |
JP2004200836A (ja) * | 2002-12-17 | 2004-07-15 | Alps Electric Co Ltd | 音響装置 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1682409A (en) * | 1924-03-01 | 1928-08-28 | Westinghouse Electric & Mfg Co | Shielded transmitter |
US1678842A (en) * | 1924-06-17 | 1928-07-31 | Westinghouse Electric & Mfg Co | Microphone |
US2346394A (en) * | 1941-06-21 | 1944-04-11 | Rca Corp | Sound pickup apparatus |
US3110769A (en) * | 1959-01-17 | 1963-11-12 | Telefunken Gmbh | Stereo sound control system |
JPS5792240A (en) * | 1980-11-29 | 1982-06-08 | Matsushita Electric Works Ltd | Sound isolated panel |
JPH0674118B2 (ja) | 1986-09-19 | 1994-09-21 | 湯浅電池株式会社 | テ−ブルリフタ− |
JPS6374896U (ja) * | 1986-11-06 | 1988-05-18 | ||
US4967874A (en) * | 1989-11-13 | 1990-11-06 | Scalli Jeffrey R | Microphone baffle apparatus |
JP3531084B2 (ja) | 1996-03-01 | 2004-05-24 | 富士通株式会社 | 指向性マイクロフォン装置 |
US5808243A (en) * | 1996-08-30 | 1998-09-15 | Carrier Corporation | Multistage turbulence shield for microphones |
JP3882268B2 (ja) * | 1997-05-30 | 2007-02-14 | ソニー株式会社 | マイクロホン装置 |
WO1999046956A1 (en) * | 1998-03-09 | 1999-09-16 | Brian Turnbull | Radial pickup microphone enclosure |
US6237302B1 (en) * | 1998-03-25 | 2001-05-29 | Edge Innovations & Technology, Llc | Low sound speed damping materials and methods of use |
US6597793B1 (en) * | 1998-08-06 | 2003-07-22 | Resistance Technology, Inc. | Directional/omni-directional hearing aid microphone and housing |
JP2004080173A (ja) * | 2002-08-13 | 2004-03-11 | Alps Electric Co Ltd | 指向性マイクロホン |
US7263028B2 (en) * | 2003-10-09 | 2007-08-28 | United States Of America As Represented By The Secretary Of The Navy | Composite acoustic attenuation materials |
JP2006014196A (ja) * | 2004-06-29 | 2006-01-12 | Kyocera Corp | 携帯端末装置 |
WO2006075377A1 (ja) * | 2005-01-13 | 2006-07-20 | Fujitsu Limited | 受音装置 |
-
2005
- 2005-02-28 CN CN2005800487948A patent/CN101133677B/zh active Active
- 2005-02-28 JP JP2007505761A patent/JP5003482B2/ja active Active
- 2005-02-28 WO PCT/JP2005/003336 patent/WO2006092841A1/ja active Application Filing
- 2005-02-28 EP EP05719653A patent/EP1855505B1/en active Active
- 2005-02-28 KR KR1020077019560A patent/KR100963363B1/ko not_active IP Right Cessation
-
2007
- 2007-08-28 US US11/892,920 patent/US8223977B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61117998A (ja) * | 1984-11-13 | 1986-06-05 | Nippon Telegr & Teleph Corp <Ntt> | マイクロホン室 |
WO1995032496A1 (fr) * | 1994-05-23 | 1995-11-30 | Zeon Kasei Co., Ltd. | Panneau permettant de realiser une paroi d'insonorisation |
JP2003163726A (ja) * | 2001-11-27 | 2003-06-06 | Aika Engineering:Kk | 携帯電話端末機 |
JP2004200836A (ja) * | 2002-12-17 | 2004-07-15 | Alps Electric Co Ltd | 音響装置 |
Also Published As
Publication number | Publication date |
---|---|
EP1855505B1 (en) | 2011-11-16 |
US8223977B2 (en) | 2012-07-17 |
EP1855505A1 (en) | 2007-11-14 |
CN101133677B (zh) | 2012-04-04 |
CN101133677A (zh) | 2008-02-27 |
KR100963363B1 (ko) | 2010-06-14 |
WO2006092841A1 (ja) | 2006-09-08 |
US20070297630A1 (en) | 2007-12-27 |
KR20070111502A (ko) | 2007-11-21 |
EP1855505A4 (en) | 2009-02-25 |
JP5003482B2 (ja) | 2012-08-15 |
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