JP7417512B2 - ラウドスピーカ - Google Patents

ラウドスピーカ Download PDF

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Publication number
JP7417512B2
JP7417512B2 JP2020213651A JP2020213651A JP7417512B2 JP 7417512 B2 JP7417512 B2 JP 7417512B2 JP 2020213651 A JP2020213651 A JP 2020213651A JP 2020213651 A JP2020213651 A JP 2020213651A JP 7417512 B2 JP7417512 B2 JP 7417512B2
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Japan
Prior art keywords
duct
acoustic
loudspeaker
diaphragm
metamaterial
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JP2020213651A
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English (en)
Japanese (ja)
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JP2021100245A (ja
JP2021100245A5 (https=
Inventor
ジャック アンソニー オクリー―ブラウン、
セバスチャン デグレーブ、
Original Assignee
ジーピー アコースティックス インターナショナル リミテッド
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Publication of JP2021100245A publication Critical patent/JP2021100245A/ja
Publication of JP2021100245A5 publication Critical patent/JP2021100245A5/ja
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
    • H04R1/2861—Enclosures comprising vibrating or resonating arrangements using a back-loaded horn
    • H04R1/2865—Enclosures comprising vibrating or resonating arrangements using a back-loaded horn for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
    • H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
    • H04R1/2876—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding
    • H04R1/288—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding for loudspeaker transducers
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/002—Devices for damping, suppressing, obstructing or conducting sound in acoustic devices
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/22—Methods or devices for transmitting, conducting or directing sound for conducting sound through hollow pipes, e.g. speaking tubes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
    • H04R1/2803—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
    • H04R1/2861—Enclosures comprising vibrating or resonating arrangements using a back-loaded horn
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
    • H04R1/36—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 by using a single aperture of dimensions not greater than the shortest operating wavelength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • G10K11/025—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators horns for impedance matching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/34—Directing or guiding sound by means of a phase plug
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/13—Use or details of compression drivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Multimedia (AREA)
  • Manufacturing & Machinery (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
JP2020213651A 2019-12-23 2020-12-23 ラウドスピーカ Active JP7417512B2 (ja)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB1919144.4 2019-12-23
GB1919144.4A GB2590656A (en) 2019-12-23 2019-12-23 Loudspeakers
GB2017429.8A GB2590785B (en) 2019-12-23 2020-11-04 Loudspeakers
GB2017429.8 2020-11-04

Publications (3)

Publication Number Publication Date
JP2021100245A JP2021100245A (ja) 2021-07-01
JP2021100245A5 JP2021100245A5 (https=) 2023-10-26
JP7417512B2 true JP7417512B2 (ja) 2024-01-18

Family

ID=69322873

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2020213651A Active JP7417512B2 (ja) 2019-12-23 2020-12-23 ラウドスピーカ

Country Status (5)

Country Link
US (1) US11647326B2 (https=)
EP (1) EP3843420B1 (https=)
JP (1) JP7417512B2 (https=)
CN (1) CN113099368B (https=)
GB (2) GB2590656A (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12587780B1 (en) 2021-08-19 2026-03-24 Dan Clark Audio Inc. Rear side acoustic metamaterial compensation system
KR20230064909A (ko) * 2021-11-04 2023-05-11 엘지디스플레이 주식회사 장치
CN118124482B (zh) * 2024-05-08 2024-09-03 苏州上声电子股份有限公司 一种车载发声装置、车载行人警示器及车载警示系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293181A (en) 1940-07-17 1942-08-18 Int Standard Electric Corp Sound absorbing apparatus
GB2290672A (en) 1995-09-08 1996-01-03 B & W Loudspeakers Loudspeaker systems
JP2003032774A (ja) 2001-07-19 2003-01-31 Matsushita Electric Ind Co Ltd スピーカシステム
JP2016082313A (ja) 2014-10-14 2016-05-16 ヤマハ株式会社 コンプレッションドライバおよびホーンスピーカ
US10453438B1 (en) 2018-05-30 2019-10-22 The Boeing Company Methods and systems for broad-band active noise reduction

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* Cited by examiner, † Cited by third party
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GB547922A (en) * 1940-07-17 1942-09-17 Standard Telephones Cables Ltd Sound absorbing apparatus
GB864683A (en) * 1958-04-08 1961-04-06 Decca Record Co Ltd Improvements in or relating to loudspeakers
US5548657A (en) 1988-05-09 1996-08-20 Kef Audio (Uk) Limited Compound loudspeaker drive unit
GB2324928B (en) * 1997-05-02 2001-09-12 B & W Loudspeakers Loudspeaker systems
US6771787B1 (en) * 1998-09-03 2004-08-03 Bose Corporation Waveguide electroacoustical transducing
US7325649B1 (en) * 1999-09-23 2008-02-05 Farnsworth & Budge, Llc Loudspeaker with progressively damped acoustical chamber
JP2004072140A (ja) * 2002-08-01 2004-03-04 Hiroshi China 全指向性バックロードホーン型スピーカー
GB2423908B (en) 2005-03-02 2008-04-02 Kh Technology Corp Loudspeaker
DK2040483T3 (da) * 2007-09-21 2013-06-03 Laurence George Dickie Port-højtalerkabinet med konisk bølgelederabsorber
WO2012106327A1 (en) * 2011-01-31 2012-08-09 Wayne State University Acoustic metamaterials
US9906198B2 (en) * 2015-03-20 2018-02-27 Nokia Technologies Oy Narrowing audio filter transition band
FR3034564B1 (fr) * 2015-04-02 2017-04-28 Focal Jmlab Dispositif d'adaptation d'impedance acoustique et haut-parleur equipe d'un tel dispositif
CN105142074B (zh) * 2015-08-19 2019-03-12 歌尔股份有限公司 扬声器模组
WO2018047153A1 (en) * 2016-09-12 2018-03-15 Acoustic Metamaterials Group Limited Acoustic metamaterial sound absorber
US10032445B1 (en) * 2016-12-13 2018-07-24 Northrop Grumman Systems Corporation Honeycomb unit cell acoustic metamaterial with in situ buttresses for tuned acoustic frequency attenuation
GB2567673B (en) * 2017-10-20 2022-01-26 Gp Acoustics International Ltd Loudspeaker
GB201905258D0 (en) * 2019-04-12 2019-05-29 Univ Of Sussex acoustic metamaterial systems
EP3984019B1 (en) * 2019-06-13 2024-08-21 Ask Industries Societa' per Azioni High-performance sound generating system for vehicles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293181A (en) 1940-07-17 1942-08-18 Int Standard Electric Corp Sound absorbing apparatus
GB2290672A (en) 1995-09-08 1996-01-03 B & W Loudspeakers Loudspeaker systems
JP2003032774A (ja) 2001-07-19 2003-01-31 Matsushita Electric Ind Co Ltd スピーカシステム
JP2016082313A (ja) 2014-10-14 2016-05-16 ヤマハ株式会社 コンプレッションドライバおよびホーンスピーカ
US10453438B1 (en) 2018-05-30 2019-10-22 The Boeing Company Methods and systems for broad-band active noise reduction

Also Published As

Publication number Publication date
CN113099368A (zh) 2021-07-09
JP2021100245A (ja) 2021-07-01
GB2590785A (en) 2021-07-07
EP3843420A1 (en) 2021-06-30
EP3843420B1 (en) 2025-03-19
US20210195316A1 (en) 2021-06-24
CN113099368B (zh) 2024-07-23
GB202017429D0 (en) 2020-12-16
GB2590785B (en) 2023-11-01
GB2590656A (en) 2021-07-07
US11647326B2 (en) 2023-05-09
GB201919144D0 (en) 2020-02-05

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