EP1308926A3 - Active noise cancellation using frequency response control - Google Patents

Active noise cancellation using frequency response control Download PDF

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Publication number
EP1308926A3
EP1308926A3 EP02079479A EP02079479A EP1308926A3 EP 1308926 A3 EP1308926 A3 EP 1308926A3 EP 02079479 A EP02079479 A EP 02079479A EP 02079479 A EP02079479 A EP 02079479A EP 1308926 A3 EP1308926 A3 EP 1308926A3
Authority
EP
European Patent Office
Prior art keywords
reference signal
noise cancellation
frequency domain
active noise
phase
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
Application number
EP02079479A
Other languages
German (de)
French (fr)
Other versions
EP1308926B1 (en
EP1308926A2 (en
Inventor
Manish Vaishya
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.)
Continental Tire Canada Inc
Original Assignee
Siemens VDO Automotive Inc
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 Siemens VDO Automotive Inc filed Critical Siemens VDO Automotive Inc
Publication of EP1308926A2 publication Critical patent/EP1308926A2/en
Publication of EP1308926A3 publication Critical patent/EP1308926A3/en
Application granted granted Critical
Publication of EP1308926B1 publication Critical patent/EP1308926B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G10K11/1781—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 characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
    • G10K11/17821—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 characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the input signals only
    • G10K11/17823—Reference signals, e.g. ambient acoustic environment
    • 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
    • G10K11/1781—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 characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
    • G10K11/17813—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 characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the acoustic paths, e.g. estimating, calibrating or testing of transfer functions or cross-terms
    • G10K11/17817—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 characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the acoustic paths, e.g. estimating, calibrating or testing of transfer functions or cross-terms between the output signals and the error signals, i.e. secondary path
    • 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
    • G10K11/17855—Methods, e.g. algorithms; Devices for improving speed or power requirements
    • 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
    • G10K11/17879—General system configurations using both a reference signal and an error signal
    • G10K11/17883—General system configurations using both a reference signal and an error signal the reference signal being derived from a machine operating condition, e.g. engine RPM or vehicle speed
    • 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
    • G10K2210/128—Vehicles
    • G10K2210/1282—Automobiles
    • 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
    • G10K2210/301—Computational
    • G10K2210/3023—Estimation of noise, e.g. on error signals
    • G10K2210/30232—Transfer functions, e.g. impulse response

Abstract

An active noise cancellation system (20) includes using a frequency domain response of a secondary path (44) of the system. The frequency domain response information provides an indication of a desired magnitude and phase of a reference signal that is used for generating a cancellation signal that drives a speaker (28) to achieve the desired amount of noise cancellation. Using a frequency domain response greatly reduces the number of computations required and the amount of memory used within the system controller. In one example, a reference signal adjustment module (40) applies the desired magnitude and phase adjustments to a reference signal having a known frequency. In another example, the referenced signal tone generator (22, 40) incorporates the desired amplitude and phase in the reference signal.
EP02079479A 2001-10-30 2002-10-25 Active noise cancellation using frequency response control Expired - Fee Related EP1308926B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US34102601P 2001-10-30 2001-10-30
US341026P 2001-10-30
US271440 2002-10-15
US10/271,440 US20030079937A1 (en) 2001-10-30 2002-10-15 Active noise cancellation using frequency response control

Publications (3)

Publication Number Publication Date
EP1308926A2 EP1308926A2 (en) 2003-05-07
EP1308926A3 true EP1308926A3 (en) 2004-01-21
EP1308926B1 EP1308926B1 (en) 2007-02-21

Family

ID=26954898

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02079479A Expired - Fee Related EP1308926B1 (en) 2001-10-30 2002-10-25 Active noise cancellation using frequency response control

Country Status (3)

Country Link
US (1) US20030079937A1 (en)
EP (1) EP1308926B1 (en)
DE (1) DE60218265T2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7706547B2 (en) * 2002-12-11 2010-04-27 General Electric Company System and method for noise cancellation
JP4283212B2 (en) * 2004-12-10 2009-06-24 インターナショナル・ビジネス・マシーンズ・コーポレーション Noise removal apparatus, noise removal program, and noise removal method
US7775320B2 (en) * 2008-03-20 2010-08-17 Honda Motor Co., Ltd. Method for reducing noise in a vehicle cabin
DE102011018459A1 (en) * 2011-04-21 2012-10-25 J. Eberspächer GmbH & Co. KG Übertragungsstreckenkompensator
TW201247996A (en) * 2011-05-26 2012-12-01 Anpec Electronics Corp Noiseless motor apparatus and denoise driver
EP2624251B1 (en) * 2012-01-31 2014-09-10 Harman Becker Automotive Systems GmbH Method of adjusting an anc system
WO2020012235A1 (en) * 2018-07-13 2020-01-16 Bosch Car Multimedia Portugal, S.A. Active noise cancelling system, based on a frequency domain audio control unit, and respective method of operation
CN112312250B (en) * 2019-07-30 2022-07-19 瑞昱半导体股份有限公司 Audio playing device and method with anti-noise mechanism

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5692052A (en) * 1991-06-17 1997-11-25 Nippondenso Co., Ltd. Engine noise control apparatus
US5768124A (en) * 1992-10-21 1998-06-16 Lotus Cars Limited Adaptive control system
US6208949B1 (en) * 1998-07-01 2001-03-27 Adaptive Audio, Inc. Method and apparatus for dynamical system analysis

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5809152A (en) * 1991-07-11 1998-09-15 Hitachi, Ltd. Apparatus for reducing noise in a closed space having divergence detector
US5404409A (en) * 1991-07-31 1995-04-04 Fujitsu Ten Limited Adaptive filtering means for an automatic sound controlling apparatus
US5410606A (en) * 1992-07-21 1995-04-25 Honda Giken Kogyo Kabushiki Kaisha Noise canceling method
JP3340496B2 (en) * 1993-03-09 2002-11-05 富士通株式会社 Estimation method of transfer characteristics of active noise control system
US5689572A (en) * 1993-12-08 1997-11-18 Hitachi, Ltd. Method of actively controlling noise, and apparatus thereof
US5978489A (en) * 1997-05-05 1999-11-02 Oregon Graduate Institute Of Science And Technology Multi-actuator system for active sound and vibration cancellation
US6298139B1 (en) * 1997-12-31 2001-10-02 Transcrypt International, Inc. Apparatus and method for maintaining a constant speech envelope using variable coefficient automatic gain control

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5692052A (en) * 1991-06-17 1997-11-25 Nippondenso Co., Ltd. Engine noise control apparatus
US5768124A (en) * 1992-10-21 1998-06-16 Lotus Cars Limited Adaptive control system
US6208949B1 (en) * 1998-07-01 2001-03-27 Adaptive Audio, Inc. Method and apparatus for dynamical system analysis

Also Published As

Publication number Publication date
DE60218265D1 (en) 2007-04-05
EP1308926B1 (en) 2007-02-21
EP1308926A2 (en) 2003-05-07
DE60218265T2 (en) 2007-07-19
US20030079937A1 (en) 2003-05-01

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