NO20090013L - Blindsignalekstraksjon - Google Patents

Blindsignalekstraksjon

Info

Publication number
NO20090013L
NO20090013L NO20090013A NO20090013A NO20090013L NO 20090013 L NO20090013 L NO 20090013L NO 20090013 A NO20090013 A NO 20090013A NO 20090013 A NO20090013 A NO 20090013A NO 20090013 L NO20090013 L NO 20090013L
Authority
NO
Norway
Prior art keywords
signals
noise
aleks
traction
interfering
Prior art date
Application number
NO20090013A
Other languages
English (en)
Other versions
NO341066B1 (no
Inventor
Nedelko Grbic
Ingvar Claesson
Per Eriksson
Original Assignee
Exaudio Ab
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 Exaudio Ab filed Critical Exaudio Ab
Publication of NO20090013L publication Critical patent/NO20090013L/no
Publication of NO341066B1 publication Critical patent/NO341066B1/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H04R3/005—Circuits for transducers for combining the signals of two or more microphones
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/03—Synergistic effects of band splitting and sub-band processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Electric hearing aids
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Electric hearing aids
    • H04R25/40—Arrangements for obtaining a desired directivity characteristic
    • H04R25/407—Circuits for combining signals of a plurality of transducers

Landscapes

  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Quality & Reliability (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Multimedia (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Noise Elimination (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Dc Digital Transmission (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

Foreliggende oppfinnelse er relatert til en adaptiv fremgangsmåte for 'a trekke ut i det minste et ønsket elektromagnetisk bølgesignal, lydbølgesignal (40, 42) og ethvert annet signal fra en blanding av signaler (40, 42, 44, 46) og å undertrykke støy og interfererende signaler for å fremstille forbedrede signaler (50) samsvarende med ønskede (10) signaler, og et apparat (70) for dette. Den hviler på konseptet om at i det minste en av en attenuering av inngangssignaler i hvert underbånd for signaler blir gjort på en slik måte at alle ønskede (10) signaler blir dempet mindre enn støy eller interfererende kildesignaler, og/eller en forsterkning av inngangssignaler i hvert underbånd for kildesignaler på en slik måte at alle ønskede (10) signaler blir forsterket og at de blir forsterket mer enn støyen og interfererende signaler.
NO20090013A 2006-06-05 2009-01-02 Blindsignaluttrekning NO341066B1 (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2006/005347 WO2007140799A1 (en) 2006-06-05 2006-06-05 Blind signal extraction

Publications (2)

Publication Number Publication Date
NO20090013L true NO20090013L (no) 2009-02-25
NO341066B1 NO341066B1 (no) 2017-08-14

Family

ID=37307419

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20090013A NO341066B1 (no) 2006-06-05 2009-01-02 Blindsignaluttrekning

Country Status (10)

Country Link
US (1) US8351554B2 (no)
EP (1) EP2030200B1 (no)
JP (1) JP5091948B2 (no)
CN (1) CN101460999B (no)
AU (1) AU2006344268B2 (no)
BR (1) BRPI0621733B1 (no)
CA (1) CA2652847C (no)
ES (1) ES2654519T3 (no)
NO (1) NO341066B1 (no)
WO (1) WO2007140799A1 (no)

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US20100332222A1 (en) * 2006-09-29 2010-12-30 National Chiao Tung University Intelligent classification method of vocal signal
AU2007308804A1 (en) 2006-10-26 2008-05-02 Abbott Diabetes Care, Inc. Method, system and computer program product for real-time detection of sensitivity decline in analyte sensors
JPWO2009051132A1 (ja) * 2007-10-19 2011-03-03 日本電気株式会社 信号処理システムと、その装置、方法及びそのプログラム
GB2459512B (en) * 2008-04-25 2012-02-15 Tannoy Ltd Control system for a transducer array
WO2009151578A2 (en) * 2008-06-09 2009-12-17 The Board Of Trustees Of The University Of Illinois Method and apparatus for blind signal recovery in noisy, reverberant environments
CN102236050B (zh) * 2010-04-27 2014-05-14 叶文俊 明视物质相关电磁波记录方法及架构
US9818416B1 (en) * 2011-04-19 2017-11-14 Deka Products Limited Partnership System and method for identifying and processing audio signals
CN104535969A (zh) * 2014-12-23 2015-04-22 电子科技大学 一种基于干扰噪声协方差矩阵重构的波束形成方法
CN105823492B (zh) * 2016-03-18 2018-08-21 北京卫星环境工程研究所 一种洋流干扰中微弱目标信号提取方法
US10219234B2 (en) * 2016-08-18 2019-02-26 Allen-Vanguard Corporation System and method for providing adaptive synchronization of LTE communication systems
US10429491B2 (en) * 2016-09-12 2019-10-01 The Boeing Company Systems and methods for pulse descriptor word generation using blind source separation
CN106419912A (zh) * 2016-10-20 2017-02-22 重庆邮电大学 一种多导联脑电信号的眼电伪迹去除方法
CN108172231B (zh) * 2017-12-07 2021-07-30 中国科学院声学研究所 一种基于卡尔曼滤波的去混响方法及系统
EP4040806A3 (en) 2021-01-18 2022-12-21 Oticon A/s A hearing device comprising a noise reduction system

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4020656A1 (de) * 1990-06-29 1992-01-02 Thomson Brandt Gmbh Verfahren zur uebertragung eines signals
US5500879A (en) * 1992-08-14 1996-03-19 Adtran Blind signal separation and equalization of full-duplex amplitude modulated signals on a signal transmission line
US6236731B1 (en) * 1997-04-16 2001-05-22 Dspfactory Ltd. Filterbank structure and method for filtering and separating an information signal into different bands, particularly for audio signal in hearing aids
US6408269B1 (en) * 1999-03-03 2002-06-18 Industrial Technology Research Institute Frame-based subband Kalman filtering method and apparatus for speech enhancement
US20010046268A1 (en) * 2000-03-06 2001-11-29 Alok Sharma Transceiver channel bank with reduced connector density
CN1148905C (zh) * 2000-06-01 2004-05-05 华为技术有限公司 宽带码分多址中抗深衰减的半盲信道估计方法
JP2002023776A (ja) * 2000-07-13 2002-01-25 Univ Kinki ブラインドセパレーションにおける話者音声と非音声雑音の識別方法及び話者音声チャンネルの特定方法
JP4028680B2 (ja) * 2000-11-01 2007-12-26 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 観測データから原信号を復元する信号分離方法、信号処理装置、モバイル端末装置、および記憶媒体
US7171008B2 (en) * 2002-02-05 2007-01-30 Mh Acoustics, Llc Reducing noise in audio systems
US20040252772A1 (en) * 2002-12-31 2004-12-16 Markku Renfors Filter bank based signal processing
US7443917B2 (en) * 2003-09-02 2008-10-28 Data Jce Ltd Method and system for transmission of information data over a communication line
JP4529492B2 (ja) * 2004-03-11 2010-08-25 株式会社デンソー 音声抽出方法、音声抽出装置、音声認識装置、及び、プログラム
CN1314000C (zh) * 2004-10-12 2007-05-02 上海大学 基于盲信号分离的语音增强装置

Also Published As

Publication number Publication date
ES2654519T3 (es) 2018-02-14
JP5091948B2 (ja) 2012-12-05
EP2030200B1 (en) 2017-10-18
CA2652847A1 (en) 2007-12-13
AU2006344268B2 (en) 2011-09-29
BRPI0621733A2 (pt) 2012-04-24
NO341066B1 (no) 2017-08-14
AU2006344268A1 (en) 2007-12-13
CN101460999A (zh) 2009-06-17
JP2009540344A (ja) 2009-11-19
US20090257536A1 (en) 2009-10-15
BRPI0621733B1 (pt) 2019-09-10
WO2007140799A1 (en) 2007-12-13
CN101460999B (zh) 2011-12-14
US8351554B2 (en) 2013-01-08
CA2652847C (en) 2015-04-21
EP2030200A1 (en) 2009-03-04

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