CN101375328B - 环境噪声降低装置 - Google Patents
环境噪声降低装置 Download PDFInfo
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- CN101375328B CN101375328B CN200780003558.3A CN200780003558A CN101375328B CN 101375328 B CN101375328 B CN 101375328B CN 200780003558 A CN200780003558 A CN 200780003558A CN 101375328 B CN101375328 B CN 101375328B
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- 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
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- 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
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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
- G10K11/1785—Methods, e.g. algorithms; Devices
- G10K11/17857—Geometric disposition, e.g. placement of microphones
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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
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- G10K11/17861—Methods, e.g. algorithms; Devices using additional means for damping sound, e.g. using sound absorbing panels
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- 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
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- H—ELECTRICITY
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- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1083—Reduction of ambient noise
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
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- H04M1/02—Constructional features of telephone sets
- H04M1/19—Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor
Landscapes
- Physics & Mathematics (AREA)
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- Multimedia (AREA)
- Signal Processing (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
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- Circuit For Audible Band Transducer (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
Description
400Hz处噪 声减少量 | 1kHz处噪声 减少量 | 最大噪声减 少量 | 上限(分频频 率) | |
商业上可获 取的耳机类 型“A” | -8dB | -3dB | -8dB | 1.5kHz |
环向的5-麦 克风阵列 | -10dB | -12dB | -15dB | 3.5kHz |
Claims (22)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0601536.6 | 2006-01-26 | ||
GB0601536A GB2434708B (en) | 2006-01-26 | 2006-01-26 | Ambient noise reduction arrangements |
PCT/GB2007/000120 WO2007085796A1 (en) | 2006-01-26 | 2007-01-17 | Ambient noise reduction arrangements |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101375328A CN101375328A (zh) | 2009-02-25 |
CN101375328B true CN101375328B (zh) | 2014-07-02 |
Family
ID=36060866
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200780003558.3A Active CN101375328B (zh) | 2006-01-26 | 2007-01-17 | 环境噪声降低装置 |
Country Status (9)
Country | Link |
---|---|
US (5) | US8472636B2 (zh) |
EP (1) | EP1979892B1 (zh) |
JP (1) | JP2009535655A (zh) |
KR (1) | KR101285857B1 (zh) |
CN (1) | CN101375328B (zh) |
DK (1) | DK1979892T3 (zh) |
GB (1) | GB2434708B (zh) |
HK (1) | HK1124680A1 (zh) |
WO (1) | WO2007085796A1 (zh) |
Families Citing this family (72)
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US20080234842A1 (en) * | 2007-03-21 | 2008-09-25 | Microsoft Corporation | Microphones as contact sensors for device control |
GB2456501B (en) * | 2007-11-13 | 2009-12-23 | Wolfson Microelectronics Plc | Ambient noise-reduction system |
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WO2011087770A2 (en) * | 2009-12-22 | 2011-07-21 | Mh Acoustics, Llc | Surface-mounted microphone arrays on flexible printed circuit boards |
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US8472636B2 (en) | 2013-06-25 |
WO2007085796A1 (en) | 2007-08-02 |
EP1979892A1 (en) | 2008-10-15 |
US20180033422A1 (en) | 2018-02-01 |
EP1979892B1 (en) | 2014-10-08 |
JP2009535655A (ja) | 2009-10-01 |
HK1124680A1 (zh) | 2009-07-17 |
US20210383785A1 (en) | 2021-12-09 |
GB2434708B (en) | 2008-02-27 |
GB0601536D0 (en) | 2006-03-08 |
US20140003613A1 (en) | 2014-01-02 |
US11127390B2 (en) | 2021-09-21 |
US9786264B2 (en) | 2017-10-10 |
DK1979892T3 (en) | 2015-01-19 |
KR20080098385A (ko) | 2008-11-07 |
KR101285857B1 (ko) | 2013-07-12 |
US20200020312A1 (en) | 2020-01-16 |
US10460718B2 (en) | 2019-10-29 |
US11620975B2 (en) | 2023-04-04 |
US20100195842A1 (en) | 2010-08-05 |
CN101375328A (zh) | 2009-02-25 |
GB2434708A (en) | 2007-08-01 |
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