DK3273608T3 - Adaptiv filterenhed til anvendelse som en ekkokompensator - Google Patents
Adaptiv filterenhed til anvendelse som en ekkokompensator Download PDFInfo
- 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
- Authority
- DK
- Denmark
- Prior art keywords
- eco
- compensator
- filter unit
- adaptive filter
- adaptive
- Prior art date
Links
- 230000003044 adaptive effect Effects 0.000 title 1
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)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Data Mining & Analysis (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- General Health & Medical Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Otolaryngology (AREA)
- Algebra (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Discrete Mathematics (AREA)
- Circuit For Audible Band Transducer (AREA)
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)
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 |
US10863269B2 (en) | 2017-10-03 | 2020-12-08 | 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、***、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***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)
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 |
EP2066139A3 (en) * | 2000-09-25 | 2010-06-23 | Widex A/S | A hearing aid |
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 |
ATE522985T1 (de) * | 2009-02-20 | 2011-09-15 | Harman Becker Automotive Sys | Akustische echokompensierung |
WO2012153452A1 (ja) | 2011-05-10 | 2012-11-15 | 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 |
US9530428B2 (en) * | 2013-05-14 | 2016-12-27 | Mitsubishi Electric Corporation | Echo cancellation device |
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***软件有限公司 | 确定声学回声消除中***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 |
-
2017
- 2017-07-17 EP EP17181611.9A patent/EP3273608B1/en active Active
- 2017-07-17 DK DK17181611.9T patent/DK3273608T3/da active
- 2017-07-20 CN CN201710594450.1A patent/CN107645697B/zh active Active
- 2017-07-20 US US15/655,295 patent/US10291784B2/en active Active
-
2019
- 2019-03-22 US US16/362,156 patent/US10506105B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP3273608A1 (en) | 2018-01-24 |
US10291784B2 (en) | 2019-05-14 |
US10506105B2 (en) | 2019-12-10 |
CN107645697A (zh) | 2018-01-30 |
US20180027125A1 (en) | 2018-01-25 |
US20190222699A1 (en) | 2019-07-18 |
CN107645697B (zh) | 2021-06-08 |
EP3273608B1 (en) | 2022-01-12 |
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