DK3273608T3 - Adaptiv filterenhed til anvendelse som en ekkokompensator - Google Patents

Adaptiv filterenhed til anvendelse som en ekkokompensator Download PDF

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Publication number
DK3273608T3
DK3273608T3 DK17181611.9T DK17181611T DK3273608T3 DK 3273608 T3 DK3273608 T3 DK 3273608T3 DK 17181611 T DK17181611 T DK 17181611T DK 3273608 T3 DK3273608 T3 DK 3273608T3
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DK
Denmark
Prior art keywords
eco
compensator
filter unit
adaptive filter
adaptive
Prior art date
Application number
DK17181611.9T
Other languages
English (en)
Inventor
Stig Petri
Svend Feldt
Original Assignee
Sennheiser Electronic Gmbh & Co Kg
Epos Group As
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 Sennheiser Electronic Gmbh & Co Kg, Epos Group As filed Critical Sennheiser Electronic Gmbh & Co Kg
Application granted granted Critical
Publication of DK3273608T3 publication Critical patent/DK3273608T3/da

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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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/141—Discrete Fourier transforms
    • G06F17/142—Fast Fourier transforms, e.g. using a Cooley-Tukey type algorithm
    • 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
    • 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
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L21/0232—Processing in the frequency domain
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H03H21/0012—Digital adaptive filters
    • H03H21/0025—Particular filtering methods
    • H03H21/0027—Particular filtering methods filtering in the frequency domain
    • 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
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
    • 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
    • H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback
    • 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
    • G10L2021/02082—Noise filtering the noise being echo, reverberation of the speech
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • 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
    • H04R1/1091—Details not provided for in groups H04R1/1008 - H04R1/1083
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/45—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback
    • H04R25/453—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback electronically

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Mathematical Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Optimization (AREA)
  • Theoretical Computer Science (AREA)
  • Data Mining & Analysis (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Algebra (AREA)
  • Discrete Mathematics (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Circuit For Audible Band Transducer (AREA)
DK17181611.9T 2016-07-20 2017-07-17 Adaptiv filterenhed til anvendelse som en ekkokompensator DK3273608T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16180326 2016-07-20

Publications (1)

Publication Number Publication Date
DK3273608T3 true DK3273608T3 (da) 2022-03-14

Family

ID=56571142

Family Applications (1)

Application Number Title Priority Date Filing Date
DK17181611.9T DK3273608T3 (da) 2016-07-20 2017-07-17 Adaptiv filterenhed til anvendelse som en ekkokompensator

Country Status (4)

Country Link
US (2) US10291784B2 (da)
EP (1) EP3273608B1 (da)
CN (1) CN107645697B (da)
DK (1) DK3273608T3 (da)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9947337B1 (en) * 2017-03-21 2018-04-17 Omnivision Technologies, Inc. Echo cancellation system and method with reduced residual echo
US10594869B2 (en) * 2017-08-03 2020-03-17 Bose Corporation Mitigating impact of double talk for residual echo suppressors
US10542153B2 (en) 2017-08-03 2020-01-21 Bose Corporation Multi-channel residual echo suppression
EP3692704B1 (en) 2017-10-03 2023-09-06 Bose Corporation Spatial double-talk detector
US10325613B1 (en) * 2018-07-12 2019-06-18 Microsemi Semiconductor Ulc Acoustic delay estimation
CN109102821B (zh) * 2018-09-10 2021-05-25 思必驰科技股份有限公司 时延估计方法、系统、存储介质及电子设备
CN109889939A (zh) * 2019-01-22 2019-06-14 深圳市九音科技有限公司 耳机和回声消除方法
US10964305B2 (en) 2019-05-20 2021-03-30 Bose Corporation Mitigating impact of double talk for residual echo suppressors
EP3944601A1 (en) * 2020-07-20 2022-01-26 EPOS Group A/S Differential audio data compensation
CN112235705B (zh) * 2020-10-13 2022-05-10 恒玄科技(上海)股份有限公司 双耳助听器
CN115828074B (zh) * 2022-09-08 2023-07-04 中国人民解放军军事科学院系统工程研究院 一种辐射源目标定位参数联合估计方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5636272A (en) * 1995-05-30 1997-06-03 Ericsson Inc. Apparatus amd method for increasing the intelligibility of a loudspeaker output and for echo cancellation in telephones
EP1191814B2 (en) * 2000-09-25 2015-07-29 Widex A/S A multiband hearing aid with multiband adaptive filters for acoustic feedback suppression.
CN1905600B (zh) * 2005-07-26 2011-05-18 中国科学院声学研究所 消除免持电话通信中声学回声的方法和装置
CN1984102A (zh) * 2005-12-13 2007-06-20 华为技术有限公司 一种电学回声消除装置和方法
US8259926B1 (en) * 2007-02-23 2012-09-04 Audience, Inc. System and method for 2-channel and 3-channel acoustic echo cancellation
US20080312916A1 (en) * 2007-06-15 2008-12-18 Mr. Alon Konchitsky Receiver Intelligibility Enhancement System
CN101430882B (zh) * 2008-12-22 2012-11-28 无锡中星微电子有限公司 一种抑制风噪声的方法及装置
EP2221983B1 (en) * 2009-02-20 2011-08-31 Harman Becker Automotive Systems GmbH Acoustic echo cancellation
JP5501527B2 (ja) 2011-05-10 2014-05-21 三菱電機株式会社 エコー消去装置およびエコー検出装置
WO2014184866A1 (ja) * 2013-05-14 2014-11-20 三菱電機株式会社 エコー消去装置
JP6087762B2 (ja) * 2013-08-13 2017-03-01 日本電信電話株式会社 残響抑圧装置とその方法と、プログラムとその記録媒体
CN103700374B (zh) * 2013-12-25 2016-08-17 宁波菊风系统软件有限公司 确定声学回声消除中系统延时的方法及声学回声消除方法
US9749741B1 (en) * 2016-04-15 2017-08-29 Amazon Technologies, Inc. Systems and methods for reducing intermodulation distortion

Also Published As

Publication number Publication date
CN107645697B (zh) 2021-06-08
EP3273608B1 (en) 2022-01-12
CN107645697A (zh) 2018-01-30
US10506105B2 (en) 2019-12-10
EP3273608A1 (en) 2018-01-24
US20180027125A1 (en) 2018-01-25
US10291784B2 (en) 2019-05-14
US20190222699A1 (en) 2019-07-18

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