JP5792141B2 - 能動ノイズ低減 - Google Patents

能動ノイズ低減 Download PDF

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Publication number
JP5792141B2
JP5792141B2 JP2012232034A JP2012232034A JP5792141B2 JP 5792141 B2 JP5792141 B2 JP 5792141B2 JP 2012232034 A JP2012232034 A JP 2012232034A JP 2012232034 A JP2012232034 A JP 2012232034A JP 5792141 B2 JP5792141 B2 JP 5792141B2
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filter
path
signal
resistor
noise reduction
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Japanese (ja)
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JP2013088823A (ja
Inventor
クリストフ マルクス
クリストフ マルクス
フロイントオルファー ヨハン
フロイントオルファー ヨハン
ホメル トーマス
ホメル トーマス
Original Assignee
ハーマン ベッカー オートモーティブ システムズ ゲーエムベーハー
ハーマン ベッカー オートモーティブ システムズ ゲーエムベーハー
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    • 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
    • G10K11/17853—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
    • G10K11/17855—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
    • G10K11/17875—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
    • 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
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/108—Communication systems, e.g. where useful sound is kept and noise is cancelled
    • G10K2210/1081—Earphones, e.g. for telephones, ear protectors or headsets
    • 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
    • G10K2210/3028—Filtering, e.g. Kalman filters or special analogue or digital filters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2410/00—Microphones
    • H04R2410/05—Noise reduction with a separate noise microphone

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)
  • Signal Processing (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Headphones And Earphones (AREA)
JP2012232034A 2011-10-21 2012-10-19 能動ノイズ低減 Active JP5792141B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP11186155.5A EP2584558B1 (en) 2011-10-21 2011-10-21 Active noise reduction
EP11186155.5 2011-10-21

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2014164679A Division JP2015007794A (ja) 2011-10-21 2014-08-13 能動ノイズ低減

Publications (2)

Publication Number Publication Date
JP2013088823A JP2013088823A (ja) 2013-05-13
JP5792141B2 true JP5792141B2 (ja) 2015-10-07

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ID=45581716

Family Applications (3)

Application Number Title Priority Date Filing Date
JP2012232034A Active JP5792141B2 (ja) 2011-10-21 2012-10-19 能動ノイズ低減
JP2014164679A Withdrawn JP2015007794A (ja) 2011-10-21 2014-08-13 能動ノイズ低減
JP2016143043A Active JP6190501B2 (ja) 2011-10-21 2016-07-21 能動ノイズ低減

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JP2014164679A Withdrawn JP2015007794A (ja) 2011-10-21 2014-08-13 能動ノイズ低減
JP2016143043A Active JP6190501B2 (ja) 2011-10-21 2016-07-21 能動ノイズ低減

Country Status (3)

Country Link
US (3) US9099076B2 (enExample)
EP (1) EP2584558B1 (enExample)
JP (3) JP5792141B2 (enExample)

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US9288579B2 (en) * 2013-01-28 2016-03-15 Neofidelity, Inc. Method for dynamically adjusting gain of parametric equalizer according to input signal, dynamic parametric equalizer and dynamic parametric equalizer system employing the same
EP3063951A4 (en) 2013-10-28 2017-08-02 3M Innovative Properties Company Adaptive frequency response, adaptive automatic level control and handling radio communications for a hearing protector
CN103888876B (zh) * 2014-03-31 2018-05-08 深圳市冠旭电子股份有限公司 一种耳机噪音处理电路及耳机
CN104661153B (zh) * 2014-12-31 2018-02-02 歌尔股份有限公司 一种耳机音效补偿方法、装置及耳机
EP3338279B1 (en) * 2015-08-20 2024-10-02 Cirrus Logic International Semiconductor Ltd. Feedback adaptive noise cancellation (anc) controller and method having a feedback response partially provided by a fixed-response filter
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US10778089B2 (en) * 2017-04-07 2020-09-15 Texas Instruments Incorporated Cascaded active electro-magnetic interference filter
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CN109495082A (zh) * 2018-12-29 2019-03-19 合肥惠科金扬科技有限公司 一种音频传输的多级匹配电路、方法及终端设备
US11601045B2 (en) 2019-04-01 2023-03-07 Texas Instruments Incorporated Active electromagnetic interference filter with damping network
US10770056B1 (en) 2019-07-11 2020-09-08 Harman Becker Automotive Systems Gmbh Selective noise cancellation for a vehicle
US11330358B2 (en) * 2020-08-21 2022-05-10 Bose Corporation Wearable audio device with inner microphone adaptive noise reduction
CN113409755B (zh) * 2021-07-26 2023-10-31 北京安声浩朗科技有限公司 主动降噪方法、装置及主动降噪耳机
KR20230040667A (ko) 2021-09-16 2023-03-23 삼성전자주식회사 전력 관리 집적 회로를 포함하는 전자 장치 및 그 운용 방법
CN115499747A (zh) * 2022-09-16 2022-12-20 展讯通信（上海）有限公司 反馈滤波器系数确定方法、装置及电子设备
CN118474630B (zh) * 2024-07-09 2024-09-20 江西红声技术有限公司 一种基于高噪声环境主动降噪电路

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Also Published As

Publication number Publication date
US9099076B2 (en) 2015-08-04
US10056066B2 (en) 2018-08-21
US9734814B2 (en) 2017-08-15
US20150201277A1 (en) 2015-07-16
EP2584558B1 (en) 2022-06-15
EP2584558A1 (en) 2013-04-24
JP2015007794A (ja) 2015-01-15
US20130101129A1 (en) 2013-04-25
JP2017010035A (ja) 2017-01-12
JP2013088823A (ja) 2013-05-13
US20170345407A1 (en) 2017-11-30
JP6190501B2 (ja) 2017-08-30

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