ATE522985T1 - Akustische echokompensierung - Google Patents

Akustische echokompensierung

Info

Publication number
ATE522985T1
ATE522985T1 AT09153339T AT09153339T ATE522985T1 AT E522985 T1 ATE522985 T1 AT E522985T1 AT 09153339 T AT09153339 T AT 09153339T AT 09153339 T AT09153339 T AT 09153339T AT E522985 T1 ATE522985 T1 AT E522985T1
Authority
AT
Austria
Prior art keywords
output signal
signal
frequency domain
domain
loudspeaker
Prior art date
Application number
AT09153339T
Other languages
English (en)
Inventor
Markus Christoph
Original Assignee
Harman Becker Automotive Sys
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 Harman Becker Automotive Sys filed Critical Harman Becker Automotive Sys
Application granted granted Critical
Publication of ATE522985T1 publication Critical patent/ATE522985T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/21—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a set of bandfilters

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
AT09153339T 2009-02-20 2009-02-20 Akustische echokompensierung ATE522985T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09153339A EP2221983B1 (de) 2009-02-20 2009-02-20 Akustische Echokompensierung

Publications (1)

Publication Number Publication Date
ATE522985T1 true ATE522985T1 (de) 2011-09-15

Family

ID=40874493

Family Applications (1)

Application Number Title Priority Date Filing Date
AT09153339T ATE522985T1 (de) 2009-02-20 2009-02-20 Akustische echokompensierung

Country Status (3)

Country Link
US (1) US8712068B2 (de)
EP (1) EP2221983B1 (de)
AT (1) ATE522985T1 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012046256A2 (en) 2010-10-08 2012-04-12 Optical Fusion Inc. Audio acoustic echo cancellation for video conferencing
US8462936B2 (en) 2011-02-28 2013-06-11 Qnx Software Systems Limited Adaptive delay compensation for acoustic echo cancellation
EP2859549A4 (de) * 2012-06-08 2016-04-20 Intel Corp Echounterdrückungsalgorithmus für langes verzögertes echo
US9210270B2 (en) 2012-11-15 2015-12-08 Qualcomm Incorporated Echo cancellation for ultrasound
GB201309771D0 (en) 2013-05-31 2013-07-17 Microsoft Corp Echo removal
GB201309779D0 (en) 2013-05-31 2013-07-17 Microsoft Corp Echo removal
GB201309777D0 (en) 2013-05-31 2013-07-17 Microsoft Corp Echo suppression
GB201309773D0 (en) 2013-05-31 2013-07-17 Microsoft Corp Echo removal
US9508359B2 (en) * 2014-06-19 2016-11-29 Yang Gao Acoustic echo preprocessing for speech enhancement
US9240819B1 (en) * 2014-10-02 2016-01-19 Bose Corporation Self-tuning transfer function for adaptive filtering
EP3349485A1 (de) 2014-11-19 2018-07-18 Harman Becker Automotive Systems GmbH Tonsystem zur erzeugung einer klangzone unter verwendung von multiple-error least-mean-square (melms) adaptation
US9712866B2 (en) 2015-04-16 2017-07-18 Comigo Ltd. Cancelling TV audio disturbance by set-top boxes in conferences
US10504501B2 (en) 2016-02-02 2019-12-10 Dolby Laboratories Licensing Corporation Adaptive suppression for removing nuisance audio
EP3273608B1 (de) 2016-07-20 2022-01-12 Sennheiser Electronic GmbH & Co. KG Adaptive filtereinheit zur verwendung als echokompensator
CN110140346B (zh) * 2016-12-30 2021-07-27 哈曼贝克自动系统股份有限公司 声回波消除
US9947337B1 (en) * 2017-03-21 2018-04-17 Omnivision Technologies, Inc. Echo cancellation system and method with reduced residual echo
CN111201712B (zh) * 2017-09-25 2023-04-21 全球硅片有限公司 自适应滤波器
US11417351B2 (en) 2018-06-26 2022-08-16 Google Llc Multi-channel echo cancellation with scenario memory
US10325613B1 (en) * 2018-07-12 2019-06-18 Microsemi Semiconductor Ulc Acoustic delay estimation
CN109658950B (zh) * 2018-11-13 2022-11-11 南京南大电子智慧型服务机器人研究院有限公司 一种混合频域自适应算法
JPWO2023188661A1 (de) * 2022-03-29 2023-10-05

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6091813A (en) 1998-06-23 2000-07-18 Noise Cancellation Technologies, Inc. Acoustic echo canceller
DE19831320A1 (de) * 1998-07-13 2000-01-27 Ericsson Telefon Ab L M Digitales adaptives Filter und akustischer Echokompensator
EP1833163B1 (de) * 2004-07-20 2019-12-18 Harman Becker Automotive Systems GmbH Audioverbesserungssystem und -verfahren

Also Published As

Publication number Publication date
US20100215185A1 (en) 2010-08-26
EP2221983A1 (de) 2010-08-25
US8712068B2 (en) 2014-04-29
EP2221983B1 (de) 2011-08-31

Similar Documents

Publication Publication Date Title
ATE522985T1 (de) Akustische echokompensierung
EP2366218A4 (de) Frequenzagiles filter mit digitalfilter und bandsperre
MY147741A (en) Method for attenuation of multiple reflections in seismic data
FI4372743T3 (fi) Tehokas suodatus kompleksisen moduloidun suodinpankin avulla
WO2012066383A8 (en) Orthogonal basis function set for digital predistorter
MX2013004602A (es) Supresion de eco que comprende el modelado de componentes de reverberacion tardia.
MX2010008372A (es) Aparato y metodo para calcular coeficientes de filtro para supresion de eco.
WO2008126287A1 (ja) 能動消音装置および能動消音方法
MY164797A (en) Apparatus and method for processing a decoded audio signal in a spectral domain
JP2012253653A5 (de)
SG144752A1 (en) Audio enhancement method and system
EP1879293A3 (de) Partitionierte Schnellfaltung in der Zeit- und Frequenzdomäne
ATE512438T1 (de) Hintergrundgeräuschschätzung
EP2501089A3 (de) Adaptiver rückgekoppelter Frequenzbereichsentzerrer
DE602005018023D1 (de) Kompensation des Echos und der Rückkopplung
WO2015112266A3 (en) Epsilon-tube filter for blunt noise removal
WO2007013981A3 (en) Acoustic feedback cancellation system
NO20053393A (no) Fremgangsmåte og system for ekkokansellering med liten forsinkelse.
DE502007006264D1 (de) Vorrichtung zur geräuschunterdrückung bei einem audiosignal
WO2011144215A3 (fr) Méthode d'atténuation du bruit harmonique en vibrosismique par filtrage temps-variant avec référence
ATE396582T1 (de) Verringerung der rückkopplung von kommunikationssystemen
WO2012020394A3 (en) Background sound removal for privacy and personalization use
TW200735623A (en) Method and apparatus for echo cancellation
ATE530012T1 (de) Schaltungsanordnung zur unterdrückung akustischer echos bei einer freisprecheinrichtung verwendbar mit einem tragbaren telefon
GB201211136D0 (en) A method and apparatus for a frequency domain echo suppression filter

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties