ATE395682T1 - Aktivsystem zur reduktion des akustischen rauschens - Google Patents

Aktivsystem zur reduktion des akustischen rauschens

Info

Publication number
ATE395682T1
ATE395682T1 AT02023483T AT02023483T ATE395682T1 AT E395682 T1 ATE395682 T1 AT E395682T1 AT 02023483 T AT02023483 T AT 02023483T AT 02023483 T AT02023483 T AT 02023483T AT E395682 T1 ATE395682 T1 AT E395682T1
Authority
AT
Austria
Prior art keywords
microphone
acoustic noise
loudspeakers
active system
input signal
Prior art date
Application number
AT02023483T
Other languages
English (en)
Inventor
Nehemia Amir
Original Assignee
Silentium 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 Silentium Ltd filed Critical Silentium Ltd
Application granted granted Critical
Publication of ATE395682T1 publication Critical patent/ATE395682T1/de

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
    • G10K11/17857—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
    • G10K11/1781—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
    • G10K11/1781—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
    • G10K11/1785—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
    • G10K11/1787—General system configurations
    • G10K11/17873—General system configurations using a reference signal without an error signal, e.g. pure feedforward

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
AT02023483T 2002-10-21 2002-10-21 Aktivsystem zur reduktion des akustischen rauschens ATE395682T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02023483A EP1414021B1 (de) 2002-10-21 2002-10-21 Aktivsystem zur Reduktion des akustischen Rauschens

Publications (1)

Publication Number Publication Date
ATE395682T1 true ATE395682T1 (de) 2008-05-15

Family

ID=32049990

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02023483T ATE395682T1 (de) 2002-10-21 2002-10-21 Aktivsystem zur reduktion des akustischen rauschens

Country Status (3)

Country Link
EP (1) EP1414021B1 (de)
AT (1) ATE395682T1 (de)
DE (1) DE60226611D1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7853024B2 (en) 1997-08-14 2010-12-14 Silentium Ltd. Active noise control system and method
IL121555A (en) 1997-08-14 2008-07-08 Silentium Ltd Active acoustic noise reduction system
US7783055B2 (en) * 1998-07-22 2010-08-24 Silentium Ltd. Soundproof climate controlled rack
US7869607B2 (en) 2006-03-02 2011-01-11 Silentium Ltd. Quiet active fan for servers chassis
WO2008090544A2 (en) 2007-01-22 2008-07-31 Silentium Ltd. Quiet fan incorporating active noise control (anc)
TWI407430B (zh) * 2009-11-19 2013-09-01 Univ Nat Changhua Education 音波抑制裝置及其方法
US9928824B2 (en) 2011-05-11 2018-03-27 Silentium Ltd. Apparatus, system and method of controlling noise within a noise-controlled volume
WO2012153294A2 (en) 2011-05-11 2012-11-15 Silentium Ltd. Device, system and method of noise control
US10741165B2 (en) 2018-08-31 2020-08-11 Bose Corporation Systems and methods for noise-cancellation with shaping and weighting filters
US10706834B2 (en) 2018-08-31 2020-07-07 Bose Corporation Systems and methods for disabling adaptation in an adaptive feedforward control system
US10629183B2 (en) 2018-08-31 2020-04-21 Bose Corporation Systems and methods for noise-cancellation using microphone projection
US10410620B1 (en) 2018-08-31 2019-09-10 Bose Corporation Systems and methods for reducing acoustic artifacts in an adaptive feedforward control system
CN109577957B (zh) * 2019-01-21 2022-04-29 西南石油大学 一种基于相关传感阵列的环空流量电磁测量装置及测量方法
CN109979424B (zh) * 2019-04-03 2023-11-03 南京大学 一种使用两面隔墙提高有源降噪系统性能的方法
US11817114B2 (en) 2019-12-09 2023-11-14 Dolby Laboratories Licensing Corporation Content and environmentally aware environmental noise compensation
CN112053676B (zh) * 2020-08-07 2023-11-21 南京时保联信息科技有限公司 一种非线性自适应主动降噪系统及其降噪方法
CN115714945B (zh) * 2022-11-24 2025-10-17 歌尔科技有限公司 耳机降噪方法、装置、电子设备及计算机可读存储介质
KR102869994B1 (ko) * 2023-02-21 2025-10-13 구본희 위상 변이를 이용한 소음 제거 방법 및 장치

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5715320A (en) * 1995-08-21 1998-02-03 Digisonix, Inc. Active adaptive selective control system
JP2939940B2 (ja) * 1996-07-09 1999-08-25 日本電気株式会社 ファン音消音装置
JP3361724B2 (ja) * 1997-06-11 2003-01-07 沖電気工業株式会社 エコーキャンセラ装置
US6496581B1 (en) * 1997-09-11 2002-12-17 Digisonix, Inc. Coupled acoustic echo cancellation system
DE69939796D1 (de) * 1998-07-16 2008-12-11 Matsushita Electric Industrial Co Ltd Lärmkontrolleanordnung
WO2002032356A1 (en) * 2000-10-19 2002-04-25 Lear Corporation Transient processing for communication system

Also Published As

Publication number Publication date
EP1414021A1 (de) 2004-04-28
DE60226611D1 (de) 2008-06-26
EP1414021B1 (de) 2008-05-14

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