WO2003030147A1 - Noise reduction apparatus - Google Patents

Noise reduction apparatus Download PDF

Info

Publication number
WO2003030147A1
WO2003030147A1 PCT/JP2002/009952 JP0209952W WO03030147A1 WO 2003030147 A1 WO2003030147 A1 WO 2003030147A1 JP 0209952 W JP0209952 W JP 0209952W WO 03030147 A1 WO03030147 A1 WO 03030147A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
sound
vicinity
microphone
output
Prior art date
Application number
PCT/JP2002/009952
Other languages
French (fr)
Japanese (ja)
Inventor
Tatsumi Nakajima
Kazunori Suzuki
Yasushi Nakayama
Original Assignee
Takenaka Corporation
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 Takenaka Corporation filed Critical Takenaka Corporation
Publication of WO2003030147A1 publication Critical patent/WO2003030147A1/en

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
    • G10K11/17813—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
    • G10K11/17815—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 reference signals and the error signals, i.e. primary 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
    • G10K11/1781—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
    • G10K11/17819—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 reference signals, e.g. to prevent howling
    • 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
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17853—Methods, e.g. algorithms; Devices of the filter
    • G10K11/17854—Methods, e.g. algorithms; Devices of the filter the filter being an adaptive 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
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17857—Geometric disposition, e.g. placement of microphones
    • 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
    • G10K11/17861—Methods, e.g. algorithms; Devices using additional means for damping sound, e.g. using sound absorbing panels
    • 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
    • G10K11/17881—General system configurations using both a reference signal and an error signal the reference signal being an acoustic signal, e.g. recorded with a microphone
    • 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
    • G10K2210/12—Rooms, e.g. ANC inside a room, office, concert hall or automobile cabin

Abstract

An active control type noise reduction apparatus capable of exhibiting an excellent noise reduction effect over a wide frequency band. From a dummy noise source (18) arranged in the vicinity of a noise source (S), an M-series signal sound is radiated. A control point microphone (25) is arranged at a control point C in the vicinity of the upper side of an acoustical insulation wall (10) and according to the output of this microphone, a filter coefficient for reducing the M-series signal sound is calculated by a computer (26) and the obtained value is set to a filter. The filter performs digital filtering by using the digital value of the output of the sound source microphone (20) arranged in the vicinity of the dummy sound source (18) and the preset filter coefficient and radiates a control sound to reduce the noise from a control loudspeaker (14) according to the filter output.
PCT/JP2002/009952 2001-09-28 2002-09-26 Noise reduction apparatus WO2003030147A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001304261A JP3615172B2 (en) 2001-09-28 2001-09-28 Noise reduction apparatus and filter coefficient setting method thereof
JP2001-304261 2001-09-28

Publications (1)

Publication Number Publication Date
WO2003030147A1 true WO2003030147A1 (en) 2003-04-10

Family

ID=19124207

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/009952 WO2003030147A1 (en) 2001-09-28 2002-09-26 Noise reduction apparatus

Country Status (2)

Country Link
JP (1) JP3615172B2 (en)
WO (1) WO2003030147A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115262439A (en) * 2022-06-15 2022-11-01 浙江高信技术股份有限公司 Noise reduction guardrail and active noise reduction barrier for urban expressway

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004361938A (en) * 2003-05-15 2004-12-24 Takenaka Komuten Co Ltd Noise reduction device
JP2006072197A (en) * 2004-09-06 2006-03-16 Kajima Corp Sound proof barrier with active silencing device
JP4718161B2 (en) * 2004-11-12 2011-07-06 株式会社竹中工務店 Noise reduction device
JP2006138130A (en) * 2004-11-12 2006-06-01 Takenaka Komuten Co Ltd Sound reducing device
JP4517948B2 (en) * 2005-06-09 2010-08-04 鹿島建設株式会社 Mobile soundproofing system and mobile soundproofing fence
JP4922773B2 (en) * 2007-01-24 2012-04-25 株式会社竹中工務店 Noise reduction device
JP5439707B2 (en) * 2007-03-02 2014-03-12 ソニー株式会社 Signal processing apparatus and signal processing method
JP5646806B2 (en) * 2008-04-11 2014-12-24 鹿島建設株式会社 Active noise control device and active noise control method
JP2010024876A (en) * 2008-07-16 2010-02-04 Toda Constr Co Ltd Engine noise silencer of construction machine
US8737634B2 (en) 2011-03-18 2014-05-27 The United States Of America As Represented By The Secretary Of The Navy Wide area noise cancellation system and method
JP6579924B2 (en) * 2015-11-13 2019-09-25 三菱日立パワーシステムズ株式会社 Chimney noise reduction system and setting method of chimney noise reduction system
JP6124203B1 (en) * 2016-05-13 2017-05-10 株式会社ボーダレス Acoustic signal processing device and helmet equipped with the same
KR101855774B1 (en) * 2016-12-13 2018-06-20 현대자동차 주식회사 Method and appratus for controlling vibration for hybrid electric vehicle

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03284098A (en) * 1990-03-30 1991-12-13 Matsushita Electric Ind Co Ltd Silencer
JPH04308899A (en) * 1991-04-05 1992-10-30 Mitsubishi Motors Corp Adaptive active sound elimination system for sound in car
GB2257327A (en) * 1991-07-05 1993-01-06 Honda Motor Co Ltd Active vibration control system
JPH0553589A (en) * 1991-08-29 1993-03-05 Nissan Motor Co Ltd Active noise controller
JPH0659687A (en) * 1992-08-06 1994-03-04 Mitsubishi Electric Corp Electronic noise eliminating system
JPH0720880A (en) * 1993-06-21 1995-01-24 Mitsubishi Heavy Ind Ltd Active vibration and noise controller
JPH0774590A (en) * 1993-09-03 1995-03-17 Mitsubishi Electric Corp Electronic muffler
JPH07219559A (en) * 1994-01-31 1995-08-18 Toshiba Corp Adaptive active noise elimination device
JPH0833092A (en) * 1994-07-14 1996-02-02 Nissan Motor Co Ltd Design device for transfer function correction filter of stereophonic reproducing device
JPH0883080A (en) * 1994-09-12 1996-03-26 Matsushita Electric Ind Co Ltd Muffler
JPH08179782A (en) * 1994-12-27 1996-07-12 Kubota Corp Active silencer
JPH1011073A (en) * 1996-06-19 1998-01-16 Toa Corp Microphone system and silencer using this system
JP2001142468A (en) * 1999-11-15 2001-05-25 Yanmar Diesel Engine Co Ltd Active muffler and its signal processing method
JP2001172925A (en) * 1999-10-08 2001-06-26 Mitsubishi Heavy Ind Ltd Active sound insulation wall and active sound insulation unit

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03284098A (en) * 1990-03-30 1991-12-13 Matsushita Electric Ind Co Ltd Silencer
JPH04308899A (en) * 1991-04-05 1992-10-30 Mitsubishi Motors Corp Adaptive active sound elimination system for sound in car
GB2257327A (en) * 1991-07-05 1993-01-06 Honda Motor Co Ltd Active vibration control system
JPH0553589A (en) * 1991-08-29 1993-03-05 Nissan Motor Co Ltd Active noise controller
JPH0659687A (en) * 1992-08-06 1994-03-04 Mitsubishi Electric Corp Electronic noise eliminating system
JPH0720880A (en) * 1993-06-21 1995-01-24 Mitsubishi Heavy Ind Ltd Active vibration and noise controller
JPH0774590A (en) * 1993-09-03 1995-03-17 Mitsubishi Electric Corp Electronic muffler
JPH07219559A (en) * 1994-01-31 1995-08-18 Toshiba Corp Adaptive active noise elimination device
JPH0833092A (en) * 1994-07-14 1996-02-02 Nissan Motor Co Ltd Design device for transfer function correction filter of stereophonic reproducing device
JPH0883080A (en) * 1994-09-12 1996-03-26 Matsushita Electric Ind Co Ltd Muffler
JPH08179782A (en) * 1994-12-27 1996-07-12 Kubota Corp Active silencer
JPH1011073A (en) * 1996-06-19 1998-01-16 Toa Corp Microphone system and silencer using this system
JP2001172925A (en) * 1999-10-08 2001-06-26 Mitsubishi Heavy Ind Ltd Active sound insulation wall and active sound insulation unit
JP2001142468A (en) * 1999-11-15 2001-05-25 Yanmar Diesel Engine Co Ltd Active muffler and its signal processing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115262439A (en) * 2022-06-15 2022-11-01 浙江高信技术股份有限公司 Noise reduction guardrail and active noise reduction barrier for urban expressway
CN115262439B (en) * 2022-06-15 2024-01-23 浙江高信技术股份有限公司 Noise reduction guardrail and active noise reduction barrier for urban expressway

Also Published As

Publication number Publication date
JP3615172B2 (en) 2005-01-26
JP2003108151A (en) 2003-04-11

Similar Documents

Publication Publication Date Title
KR940005040B1 (en) Noise reducing device
US5276740A (en) Earphone device
WO2003030147A1 (en) Noise reduction apparatus
US20090074199A1 (en) System for providing a reduction of audiable noise perception for a human user
CA2149563A1 (en) Transmitter-Receiver Having Ear-Piece Type Acoustic Transducing Part
CA2382362A1 (en) Inter-channel communication in a multi-channel digital hearing instrument
ATE165505T1 (en) DEVICE FOR SUPPRESSING SNORING
CA2520037A1 (en) Active acoustics performance shell
HK1069705A1 (en) Method and device for controlling the bass reproduction of audio signals in electroacoustic transducers
JPH03165696A (en) Multifunctional electric sound device
GB0220405D0 (en) A method of improving the audibility of sound from a loudspeaker located close to an ear
EP1499159A3 (en) Active noise suppression in hearing-aids
WO2003022000A3 (en) Interchangeable pivoting loudspeaker assembly with spring retained high frequency transducer
EP1267591A3 (en) Sound signal playback machine and method thereof
MY128422A (en) Active headset
NO950495L (en) Apparatus for listening to body sounds
WO2006047203A3 (en) Method and apparatus for intelligent acoustic signal processing in accordance with a user preference
JP2003264883A (en) Voice processing apparatus and voice processing method
CN203968327U (en) A kind of exempt from extract carry out low coverage dialogue earphone
CN103813241A (en) Mobile electronic equipment and audio playing device thereof
US20230336926A1 (en) Beamforming devices for hearing assistance
CN107889006A (en) A kind of active noise reduction system of flexible modulation de-noising signal delay
KR100231219B1 (en) Earphone device
JP2001285409A (en) Telephone set
JPS5775100A (en) Heaing aid

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CN KR SG

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FR GB GR IE IT LU MC NL PT SE SK TR

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
122 Ep: pct application non-entry in european phase