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AU2001244888A1 - Active noise reduction system - Google Patents

Active noise reduction system

Info

Publication number
AU2001244888A1
AU2001244888A1 AU2001244888A AU4488801A AU2001244888A1 AU 2001244888 A1 AU2001244888 A1 AU 2001244888A1 AU 2001244888 A AU2001244888 A AU 2001244888A AU 4488801 A AU4488801 A AU 4488801A AU 2001244888 A1 AU2001244888 A1 AU 2001244888A1
Authority
AU
Australia
Prior art keywords
noise reduction
reduction system
active noise
active
reduction
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.)
Abandoned
Application number
AU2001244888A
Inventor
Mark Donaldson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Slab DSP Ltd
Original Assignee
Slab DSP Ltd
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 Slab DSP Ltd filed Critical Slab DSP Ltd
Publication of AU2001244888A1 publication Critical patent/AU2001244888A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • G10K11/17853—Methods, e.g. algorithms; Devices of the filter
    • 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
    • G10K11/1787—General system configurations
    • G10K11/17875—General system configurations using an error signal without a reference signal, e.g. pure feedback
    • 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
    • G10K11/1787—General system configurations
    • G10K11/17885—General system configurations additionally using a desired external signal, e.g. pass-through audio such as music or speech
    • 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
    • G10K2210/3217—Collocated sensor and cancelling actuator, e.g. "virtual earth" designs

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Filters That Use Time-Delay Elements (AREA)
AU2001244888A 2000-03-07 2001-03-07 Active noise reduction system Abandoned AU2001244888A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
NZ50322100 2000-03-07
NZ503221 2000-03-07
NZ50324200 2000-03-08
NZ503242 2000-03-08
PCT/NZ2001/000037 WO2001067434A1 (en) 2000-03-07 2001-03-07 Active noise reduction system

Publications (1)

Publication Number Publication Date
AU2001244888A1 true AU2001244888A1 (en) 2001-09-17

Family

ID=26652161

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001244888A Abandoned AU2001244888A1 (en) 2000-03-07 2001-03-07 Active noise reduction system

Country Status (6)

Country Link
US (1) US20010036283A1 (en)
EP (1) EP1297523A1 (en)
JP (1) JP2003532913A (en)
CN (1) CN1427988A (en)
AU (1) AU2001244888A1 (en)
WO (1) WO2001067434A1 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100284546A1 (en) * 2005-08-18 2010-11-11 Debrunner Victor Active noise control algorithm that requires no secondary path identification based on the SPR property
EP1645161A1 (en) * 2003-06-02 2006-04-12 Feonic Plc Audio system
US9025638B2 (en) * 2004-06-16 2015-05-05 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus to compensate for receiver frequency error in noise estimation processing
CN1812293B (en) * 2005-01-26 2011-05-04 乐金电子(中国)研究开发中心有限公司 Time division multiplexing access noise controlling system and method used for GSM mobile telephone
CN1851804B (en) * 2006-05-22 2010-07-07 南京大学 Active soft boundary acoustic shielding
FR2906389B1 (en) * 2006-09-21 2008-12-26 Neopost Technologies Sa REDUCED NOISE LEVEL MAIL PROCESSING MACHINE
CN101393736B (en) * 2008-10-28 2011-03-30 南京大学 Active noise control method without secondary channel modeling
US8135140B2 (en) 2008-11-20 2012-03-13 Harman International Industries, Incorporated System for active noise control with audio signal compensation
US9020158B2 (en) 2008-11-20 2015-04-28 Harman International Industries, Incorporated Quiet zone control system
US8718289B2 (en) 2009-01-12 2014-05-06 Harman International Industries, Incorporated System for active noise control with parallel adaptive filter configuration
US8189799B2 (en) 2009-04-09 2012-05-29 Harman International Industries, Incorporated System for active noise control based on audio system output
US8199924B2 (en) 2009-04-17 2012-06-12 Harman International Industries, Incorporated System for active noise control with an infinite impulse response filter
EP2425635B1 (en) * 2009-04-28 2013-08-14 Bose Corporation Dynamically configurable anr filter and signal processing topology
US8077873B2 (en) 2009-05-14 2011-12-13 Harman International Industries, Incorporated System for active noise control with adaptive speaker selection
EP2259250A1 (en) * 2009-06-03 2010-12-08 Nxp B.V. Hybrid active noise reduction device for reducing environmental noise, method for determining an operational parameter of a hybrid active noise reduction device, and program element
DE202009009804U1 (en) * 2009-07-17 2009-10-29 Sennheiser Electronic Gmbh & Co. Kg Headset and handset
DE102010039017B4 (en) * 2010-08-06 2017-09-21 Robert Bosch Gmbh Method and device for active damping of an acoustic transducer
CN102332260A (en) * 2011-05-30 2012-01-25 南京大学 One-piece signal channel feedback ANC system
EP2551845B1 (en) * 2011-07-26 2020-04-01 Harman Becker Automotive Systems GmbH Noise reducing sound reproduction
US8824695B2 (en) * 2011-10-03 2014-09-02 Bose Corporation Instability detection and avoidance in a feedback system
CN103077703B (en) * 2012-12-25 2014-12-24 桂林电子科技大学 Method and device for inhibiting dynamic noise
CN103905959A (en) * 2012-12-26 2014-07-02 上海航空电器有限公司 Active noise control device based on pilot headset

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8405914D0 (en) * 1984-03-07 1984-04-11 Swinbanks M A Reducing noise by cancellation
GB8517716D0 (en) * 1985-07-13 1985-08-21 Plessey Co Plc Noise reduction arrangements
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
CA1299725C (en) * 1987-07-20 1992-04-28 Robert Christopher Twiney Noise reduction systems
US5138664A (en) * 1989-03-25 1992-08-11 Sony Corporation Noise reducing device
US5105377A (en) * 1990-02-09 1992-04-14 Noise Cancellation Technologies, Inc. Digital virtual earth active cancellation system
US4987598A (en) * 1990-05-03 1991-01-22 Nelson Industries Active acoustic attenuation system with overall modeling
US5224168A (en) * 1991-05-08 1993-06-29 Sri International Method and apparatus for the active reduction of compression waves
JP2882170B2 (en) * 1992-03-19 1999-04-12 日産自動車株式会社 Active noise control device
JP3176474B2 (en) * 1992-06-03 2001-06-18 沖電気工業株式会社 Adaptive noise canceller device
US5627746A (en) * 1992-07-14 1997-05-06 Noise Cancellation Technologies, Inc. Low cost controller
NO175798C (en) * 1992-07-22 1994-12-07 Sinvent As Method and device for active noise cancellation in a local area
JPH06202669A (en) * 1992-12-28 1994-07-22 Toshiba Corp Active sound eliminating device
US5481615A (en) * 1993-04-01 1996-01-02 Noise Cancellation Technologies, Inc. Audio reproduction system
JP3316259B2 (en) * 1993-06-24 2002-08-19 三洋電機株式会社 Active silencer
US5539831A (en) * 1993-08-16 1996-07-23 The University Of Mississippi Active noise control stethoscope
JP3099217B2 (en) * 1994-04-28 2000-10-16 株式会社ユニシアジェックス Active noise control system for automobiles
US5692055A (en) * 1996-09-24 1997-11-25 Honda Giken Kogyo Kabushiki Kaisha Active noise-suppressive control method and apparatus

Also Published As

Publication number Publication date
EP1297523A1 (en) 2003-04-02
JP2003532913A (en) 2003-11-05
US20010036283A1 (en) 2001-11-01
CN1427988A (en) 2003-07-02
WO2001067434A1 (en) 2001-09-13

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