CN101562669A - Method of adaptive full duplex full frequency band echo cancellation - Google Patents
Method of adaptive full duplex full frequency band echo cancellation Download PDFInfo
- Publication number
- CN101562669A CN101562669A CNA2009100258559A CN200910025855A CN101562669A CN 101562669 A CN101562669 A CN 101562669A CN A2009100258559 A CNA2009100258559 A CN A2009100258559A CN 200910025855 A CN200910025855 A CN 200910025855A CN 101562669 A CN101562669 A CN 101562669A
- Authority
- CN
- China
- Prior art keywords
- echo
- signal
- subband
- filter
- sub
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Images
Abstract
Description
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200910025855A CN101562669B (en) | 2009-03-11 | 2009-03-11 | Method of adaptive full duplex full frequency band echo cancellation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200910025855A CN101562669B (en) | 2009-03-11 | 2009-03-11 | Method of adaptive full duplex full frequency band echo cancellation |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101562669A true CN101562669A (en) | 2009-10-21 |
CN101562669B CN101562669B (en) | 2012-10-03 |
Family
ID=41221274
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200910025855A Active CN101562669B (en) | 2009-03-11 | 2009-03-11 | Method of adaptive full duplex full frequency band echo cancellation |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN101562669B (en) |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101958122A (en) * | 2010-09-19 | 2011-01-26 | 杭州华三通信技术有限公司 | Method and device for eliminating echo |
CN102065190A (en) * | 2010-12-31 | 2011-05-18 | 杭州华三通信技术有限公司 | Method and device for eliminating echo |
CN102196109A (en) * | 2010-03-01 | 2011-09-21 | 联芯科技有限公司 | Residual echo detection method and system |
CN102739286A (en) * | 2011-04-01 | 2012-10-17 | 中国科学院声学研究所 | Echo cancellation method used in communication system |
CN103077726A (en) * | 2012-01-09 | 2013-05-01 | 美商威睿电通公司 | Pretreatment and after-treatment for linear acoustic echo elimination system |
CN103096024A (en) * | 2011-10-27 | 2013-05-08 | 宝利通公司 | Portable devices as videoconferencing peripherals |
CN103457646A (en) * | 2012-05-31 | 2013-12-18 | 大陆汽车系统公司 | Method and apparatus for a frequency domain echo suppression filter |
CN103795473A (en) * | 2012-11-02 | 2014-05-14 | 华为技术有限公司 | Method and system for eliminating power-frequency interference |
CN104735273A (en) * | 2014-12-26 | 2015-06-24 | 深圳市微纳集成电路与系统应用研究院 | Communication system and echo cancellation method and module thereof |
CN104835502A (en) * | 2015-05-20 | 2015-08-12 | 捷思锐科技(北京)有限公司 | Audio signal processing method, audio signal processing device and electronic equipment |
CN106128471A (en) * | 2016-08-26 | 2016-11-16 | 西南交通大学 | A kind of contraction variable step subband acoustic echo removing method |
CN107017004A (en) * | 2017-05-24 | 2017-08-04 | 建荣半导体(深圳)有限公司 | Noise suppressing method, audio processing chip, processing module and bluetooth equipment |
CN107040832A (en) * | 2017-04-22 | 2017-08-11 | 广州市比丽普电子有限公司 | A kind of handheld terminal formula microphone system based on Bluetooth technology |
CN107749303A (en) * | 2017-07-31 | 2018-03-02 | 电信科学技术研究院 | A kind of post-processing approach and device of acoustic echo canceler device output voice signal |
CN109040498A (en) * | 2018-08-12 | 2018-12-18 | 瑞声科技(南京)有限公司 | A kind of method and its system promoting echo neutralization effect |
WO2018227902A1 (en) * | 2017-06-15 | 2018-12-20 | 歌尔股份有限公司 | Multi-channel echo cancellation circuit and method, and smart device |
US10264116B2 (en) | 2016-11-02 | 2019-04-16 | Nokia Technologies Oy | Virtual duplex operation |
CN110148421A (en) * | 2019-06-10 | 2019-08-20 | 浙江大华技术股份有限公司 | A kind of residual echo detection method, terminal and device |
CN110310653A (en) * | 2019-07-09 | 2019-10-08 | 杭州国芯科技股份有限公司 | A kind of echo cancel method |
CN110956969A (en) * | 2019-11-28 | 2020-04-03 | 北京达佳互联信息技术有限公司 | Live broadcast audio processing method and device, electronic equipment and storage medium |
CN111988708A (en) * | 2020-09-03 | 2020-11-24 | 昆腾微电子股份有限公司 | Single-microphone-based howling suppression method and device |
CN112367594A (en) * | 2020-11-25 | 2021-02-12 | 厦门亿联网络技术股份有限公司 | AEC debugging method, AEC debugging device and computer readable storage medium |
CN112653799A (en) * | 2020-12-07 | 2021-04-13 | 兰州空间技术物理研究所 | Echo cancellation method for space voice equipment of space station |
CN116962583A (en) * | 2023-09-20 | 2023-10-27 | 腾讯科技(深圳)有限公司 | Echo control method, device, equipment, storage medium and program product |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160150315A1 (en) * | 2014-11-20 | 2016-05-26 | GM Global Technology Operations LLC | System and method for echo cancellation |
CN106328154B (en) * | 2015-06-30 | 2019-09-17 | 芋头科技(杭州)有限公司 | A kind of front audio processing system |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2344036B (en) * | 1998-11-23 | 2004-01-21 | Mitel Corp | Single-sided subband filters |
JP3403655B2 (en) * | 1998-11-27 | 2003-05-06 | 松下電器産業株式会社 | Method and apparatus for identifying unknown system using subband adaptive filter |
US7065206B2 (en) * | 2003-11-20 | 2006-06-20 | Motorola, Inc. | Method and apparatus for adaptive echo and noise control |
CN1691716A (en) * | 2004-04-23 | 2005-11-02 | 北京三星通信技术研究有限公司 | Echo eliminator |
CN1668058B (en) * | 2005-02-21 | 2011-06-15 | 南望信息产业集团有限公司 | Recursive least square difference based subband echo canceller |
NO20053393A (en) * | 2005-07-13 | 2006-09-11 | Tandberg Telecom As | Procedure and system for echo cancellation with little delay. |
-
2009
- 2009-03-11 CN CN200910025855A patent/CN101562669B/en active Active
Cited By (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102196109A (en) * | 2010-03-01 | 2011-09-21 | 联芯科技有限公司 | Residual echo detection method and system |
CN101958122A (en) * | 2010-09-19 | 2011-01-26 | 杭州华三通信技术有限公司 | Method and device for eliminating echo |
CN102065190A (en) * | 2010-12-31 | 2011-05-18 | 杭州华三通信技术有限公司 | Method and device for eliminating echo |
CN102065190B (en) * | 2010-12-31 | 2013-08-28 | 杭州华三通信技术有限公司 | Method and device for eliminating echo |
CN102739286B (en) * | 2011-04-01 | 2014-06-11 | 中国科学院声学研究所 | Echo cancellation method used in communication system |
CN102739286A (en) * | 2011-04-01 | 2012-10-17 | 中国科学院声学研究所 | Echo cancellation method used in communication system |
CN103096024A (en) * | 2011-10-27 | 2013-05-08 | 宝利通公司 | Portable devices as videoconferencing peripherals |
CN103077726A (en) * | 2012-01-09 | 2013-05-01 | 美商威睿电通公司 | Pretreatment and after-treatment for linear acoustic echo elimination system |
CN103077726B (en) * | 2012-01-09 | 2015-12-23 | 开曼群岛威睿电通股份有限公司 | For pre-service and the aftertreatment of linear acoustic echo cancelling system |
CN103457646B (en) * | 2012-05-31 | 2018-03-30 | 大陆汽车系统公司 | Method and apparatus for frequency domain echo rejects trap |
CN103457646A (en) * | 2012-05-31 | 2013-12-18 | 大陆汽车系统公司 | Method and apparatus for a frequency domain echo suppression filter |
CN103795473A (en) * | 2012-11-02 | 2014-05-14 | 华为技术有限公司 | Method and system for eliminating power-frequency interference |
CN103795473B (en) * | 2012-11-02 | 2017-04-12 | 华为技术有限公司 | Method and system for eliminating power-frequency interference |
CN104735273A (en) * | 2014-12-26 | 2015-06-24 | 深圳市微纳集成电路与系统应用研究院 | Communication system and echo cancellation method and module thereof |
CN104835502B (en) * | 2015-05-20 | 2018-04-10 | 北京捷思锐科技股份有限公司 | Acoustic signal processing method, device and electronic equipment |
CN104835502A (en) * | 2015-05-20 | 2015-08-12 | 捷思锐科技(北京)有限公司 | Audio signal processing method, audio signal processing device and electronic equipment |
CN106128471A (en) * | 2016-08-26 | 2016-11-16 | 西南交通大学 | A kind of contraction variable step subband acoustic echo removing method |
CN106128471B (en) * | 2016-08-26 | 2019-05-17 | 西南交通大学 | A kind of contraction variable step subband acoustic echo removing method |
US10264116B2 (en) | 2016-11-02 | 2019-04-16 | Nokia Technologies Oy | Virtual duplex operation |
CN107040832A (en) * | 2017-04-22 | 2017-08-11 | 广州市比丽普电子有限公司 | A kind of handheld terminal formula microphone system based on Bluetooth technology |
CN107017004A (en) * | 2017-05-24 | 2017-08-04 | 建荣半导体(深圳)有限公司 | Noise suppressing method, audio processing chip, processing module and bluetooth equipment |
WO2018227902A1 (en) * | 2017-06-15 | 2018-12-20 | 歌尔股份有限公司 | Multi-channel echo cancellation circuit and method, and smart device |
US10643634B2 (en) | 2017-06-15 | 2020-05-05 | Goertek Inc. | Multichannel echo cancellation circuit and method and smart device |
CN107749303B (en) * | 2017-07-31 | 2020-03-31 | 电信科学技术研究院 | Post-processing method and device for voice signal output by acoustic echo canceller |
CN107749303A (en) * | 2017-07-31 | 2018-03-02 | 电信科学技术研究院 | A kind of post-processing approach and device of acoustic echo canceler device output voice signal |
CN109040498A (en) * | 2018-08-12 | 2018-12-18 | 瑞声科技(南京)有限公司 | A kind of method and its system promoting echo neutralization effect |
CN110148421A (en) * | 2019-06-10 | 2019-08-20 | 浙江大华技术股份有限公司 | A kind of residual echo detection method, terminal and device |
CN110310653A (en) * | 2019-07-09 | 2019-10-08 | 杭州国芯科技股份有限公司 | A kind of echo cancel method |
CN110956969A (en) * | 2019-11-28 | 2020-04-03 | 北京达佳互联信息技术有限公司 | Live broadcast audio processing method and device, electronic equipment and storage medium |
CN110956969B (en) * | 2019-11-28 | 2022-06-10 | 北京达佳互联信息技术有限公司 | Live broadcast audio processing method and device, electronic equipment and storage medium |
CN111988708A (en) * | 2020-09-03 | 2020-11-24 | 昆腾微电子股份有限公司 | Single-microphone-based howling suppression method and device |
CN112367594A (en) * | 2020-11-25 | 2021-02-12 | 厦门亿联网络技术股份有限公司 | AEC debugging method, AEC debugging device and computer readable storage medium |
CN112367594B (en) * | 2020-11-25 | 2022-03-11 | 厦门亿联网络技术股份有限公司 | AEC debugging method, AEC debugging device and computer readable storage medium |
CN112653799A (en) * | 2020-12-07 | 2021-04-13 | 兰州空间技术物理研究所 | Echo cancellation method for space voice equipment of space station |
CN116962583A (en) * | 2023-09-20 | 2023-10-27 | 腾讯科技(深圳)有限公司 | Echo control method, device, equipment, storage medium and program product |
CN116962583B (en) * | 2023-09-20 | 2023-12-08 | 腾讯科技(深圳)有限公司 | Echo control method, device, equipment, storage medium and program product |
Also Published As
Publication number | Publication date |
---|---|
CN101562669B (en) | 2012-10-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101562669B (en) | Method of adaptive full duplex full frequency band echo cancellation | |
US7822194B2 (en) | Method and system for low delay echo cancelling | |
CN100521710C (en) | Echo canceller with reduced requirement for processing power | |
KR101655003B1 (en) | Pre-shaping series filter for active noise cancellation adaptive filter | |
US6961422B2 (en) | Gain control method for acoustic echo cancellation and suppression | |
US8311234B2 (en) | Echo canceller and communication audio processing apparatus | |
CN101878637B (en) | A method and arrangement for echo cancellation of voice signals | |
US8934620B2 (en) | Acoustic echo cancellation for high noise and excessive double talk | |
US9947337B1 (en) | Echo cancellation system and method with reduced residual echo | |
JP5061853B2 (en) | Echo canceller and echo cancel program | |
US9699554B1 (en) | Adaptive signal equalization | |
US10455326B2 (en) | Audio feedback reduction utilizing adaptive filters and nonlinear processing | |
KR20040019362A (en) | Sound reinforcement system having an multi microphone echo suppressor as post processor | |
CA2545551C (en) | Anti-howling structure | |
US20150010180A1 (en) | Hearing assistance devices with echo cancellation | |
JP2007515911A (en) | System and method for enhancing stereo sound | |
Martin et al. | Coupled adaptive filters for acoustic echo control and noise reduction | |
JP2009017029A (en) | Device and method for processing sound signal | |
JP4396449B2 (en) | Reverberation removal method and apparatus | |
JP3403655B2 (en) | Method and apparatus for identifying unknown system using subband adaptive filter | |
CN113409806B (en) | Zero-attraction echo cancellation method based on arctangent function | |
Gunale et al. | Frequency domain adaptive filter using FFT algorithm for acoustic echo cancellation | |
Vaseghi et al. | Echo Cancellation | |
Akinwole Bukola et al. | Performance of Adaptive Filters for Real-Time Acoustic Echo Cancellation in Non-Stationary Environment | |
Nwe et al. | Acoustic Echo Cancellation Using Adaptive Least Mean Square Algorithm |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
ASS | Succession or assignment of patent right |
Owner name: SHANGHAI LONGOO ELECTRONICS TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: QU GUOLIANG Effective date: 20110516 |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 210003 ROOM 402, UNIT 3, BUILDING 6, NO. 1, XIAOMENKOU, GULOU DISTRICT, NANJING CITY, JIANGSU PROVINCE TO: 200030 NO. 550, HONGQIAO ROAD, SHANGHAI |
|
TA01 | Transfer of patent application right |
Effective date of registration: 20110516 Address after: 200030 No. 550, Hongqiao Road, Shanghai Applicant after: Qu Guoliang Address before: 402, room three, unit 6, No. 210003, school entrance, Gulou District, Jiangsu, Nanjing Applicant before: Qu Guoliang |
|
C53 | Correction of patent for invention or patent application | ||
CB03 | Change of inventor or designer information |
Inventor after: Yang Jun Inventor before: Qu Guoliang |
|
COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: QU GUOLIANG TO: YANG JUN |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: NANJING LANGYI RUIKE ELECTRONIC TECHNOLOGY CO., LT Free format text: FORMER OWNER: SHANGHAI LONGOO ELECTRONICS TECHNOLOGY CO., LTD. Effective date: 20150310 |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200030 XUHUI, SHANGHAI TO: 210037 NANJING, JIANGSU PROVINCE |
|
TR01 | Transfer of patent right |
Effective date of registration: 20150310 Address after: Longpan road Xuanwu District of Nanjing city of Jiangsu Province, No. 167 210037 Patentee after: Nanjing Lang Yirui Department of Electronic Science and Technology Co Ltd Address before: 200030 No. 550, Hongqiao Road, Shanghai Patentee before: Qu Guoliang |