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SG60115A1 - Loudspeaker phase distortion control using velocity feedback - Google Patents

Loudspeaker phase distortion control using velocity feedback

Info

Publication number
SG60115A1
SG60115A1 SG1997003378A SG1997003378A SG60115A1 SG 60115 A1 SG60115 A1 SG 60115A1 SG 1997003378 A SG1997003378 A SG 1997003378A SG 1997003378 A SG1997003378 A SG 1997003378A SG 60115 A1 SG60115 A1 SG 60115A1
Authority
SG
Singapore
Prior art keywords
phase distortion
velocity feedback
distortion control
loudspeaker phase
loudspeaker
Prior art date
Application number
SG1997003378A
Other languages
English (en)
Inventor
Mark A Daniels
Original Assignee
Carrier Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Carrier Corp filed Critical Carrier Corp
Publication of SG60115A1 publication Critical patent/SG60115A1/en

Links

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
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
    • 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
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • 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
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; 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
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/112—Ducts
    • 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
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/321—Physical
    • G10K2210/3212—Actuator details, e.g. composition or microstructure

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Exhaust Silencers (AREA)
SG1997003378A 1996-09-25 1997-09-12 Loudspeaker phase distortion control using velocity feedback SG60115A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/723,160 US5771300A (en) 1996-09-25 1996-09-25 Loudspeaker phase distortion control using velocity feedback

Publications (1)

Publication Number Publication Date
SG60115A1 true SG60115A1 (en) 1999-02-22

Family

ID=24905110

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1997003378A SG60115A1 (en) 1996-09-25 1997-09-12 Loudspeaker phase distortion control using velocity feedback

Country Status (11)

Country Link
US (1) US5771300A (pt)
EP (1) EP0838973B1 (pt)
JP (1) JPH10164689A (pt)
CN (1) CN1132498C (pt)
AU (1) AU716029B2 (pt)
BR (1) BR9704861A (pt)
ES (1) ES2166521T3 (pt)
ID (1) ID18318A (pt)
MY (1) MY117380A (pt)
SG (1) SG60115A1 (pt)
TW (1) TW331694B (pt)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6739425B1 (en) * 2000-07-18 2004-05-25 The United States Of America As Represented By The Secretary Of The Air Force Evacuated enclosure mounted acoustic actuator and passive attenuator
CA2408045A1 (en) * 2001-10-16 2003-04-16 Audio Products International Corp. Loudspeaker with large displacement motional feedback
JP2006050245A (ja) 2004-08-04 2006-02-16 Sony Corp スピーカ駆動装置及びスピーカ駆動方法
JP2008518498A (ja) * 2004-10-21 2008-05-29 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ ラウドスピーカ・フィードバック
US9496850B2 (en) * 2006-08-04 2016-11-15 Creative Technology Ltd Alias-free subband processing
ES2385393B1 (es) * 2010-11-02 2013-07-12 Universitat Politècnica De Catalunya Equipo de diagnóstico de altavoces y procedimiento de utilización de éste mediante el uso de transformada wavelet.
FR3018025B1 (fr) * 2014-02-26 2016-03-18 Devialet Dispositif de commande d'un haut-parleur
US9838788B1 (en) 2016-12-05 2017-12-05 Tymphany Hk Limited Assembly for preventing phase error
CN110402585B (zh) * 2017-03-10 2021-12-24 三星电子株式会社 室内低频声功率优化方法和装置
GB201712391D0 (en) 2017-08-01 2017-09-13 Turner Michael James Controller for an electromechanical transducer
CN112152518A (zh) * 2019-06-28 2020-12-29 胡永慧 用于降低电磁振动换能机电机构自由振动的驱动电路
US10867594B1 (en) * 2019-10-02 2020-12-15 xMEMS Labs, Inc. Audio apparatus and audio method thereof
US11425476B2 (en) * 2019-12-30 2022-08-23 Harman Becker Automotive Systems Gmbh System and method for adaptive control of online extraction of loudspeaker parameters
US11664007B1 (en) * 2022-04-27 2023-05-30 Harman International Industries, Incorporated Fast adapting high frequency remote microphone noise cancellation
US12449441B2 (en) * 2023-05-08 2025-10-21 Hans K Liu Velocity detection for motion conductor in magnetic field

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2235664A1 (de) * 1972-07-20 1974-01-31 Max Planck Gesellschaft Schaltungsanordnung zur kompensation des spannungsabfalls an einem lautsprecher
DE3237262C1 (de) * 1982-10-08 1983-10-27 Michael 4000 Düsseldorf Bolz Lautsprecher mit Membrangegenkopplung
DE3426231C2 (de) * 1984-07-17 1986-11-06 T+A elektroakustik GmbH, 4900 Herford Vorrichtung zur Gegenkopplung eines Lautsprechers
US4677677A (en) * 1985-09-19 1987-06-30 Nelson Industries Inc. Active sound attenuation system with on-line adaptive feedback cancellation
US4677676A (en) * 1986-02-11 1987-06-30 Nelson Industries, Inc. Active attenuation system with on-line modeling of speaker, error path and feedback pack
US5119427A (en) * 1988-03-14 1992-06-02 Hersh Alan S Extended frequency range Helmholtz resonators
DE3836745A1 (de) * 1988-10-28 1990-05-03 Standard Elektrik Lorenz Ag Verfahren und vorrichtung zur linearisierung des frequenzganges eines lautsprechersystems
EP0548836B1 (en) * 1991-12-20 1997-06-11 Matsushita Electric Industrial Co., Ltd. A bass reproduction speaker apparatus

Also Published As

Publication number Publication date
MX9707301A (es) 1998-03-31
BR9704861A (pt) 1999-01-26
AU716029B2 (en) 2000-02-17
CN1179690A (zh) 1998-04-22
EP0838973A1 (en) 1998-04-29
EP0838973B1 (en) 2001-10-31
US5771300A (en) 1998-06-23
JPH10164689A (ja) 1998-06-19
MY117380A (en) 2004-06-30
AU3919597A (en) 1998-04-02
ID18318A (id) 1998-03-26
ES2166521T3 (es) 2002-04-16
TW331694B (en) 1998-05-11
CN1132498C (zh) 2003-12-24
HK1010304A1 (en) 1999-06-17

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