CN103077726B - 用于线性声学回声消除系统的预处理和后处理 - Google Patents
用于线性声学回声消除系统的预处理和后处理 Download PDFInfo
- Publication number
- CN103077726B CN103077726B CN201310008162.5A CN201310008162A CN103077726B CN 103077726 B CN103077726 B CN 103077726B CN 201310008162 A CN201310008162 A CN 201310008162A CN 103077726 B CN103077726 B CN 103077726B
- Authority
- CN
- China
- Prior art keywords
- signal
- processing
- wave filter
- phase
- generating
- 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.)
- Expired - Fee Related
Links
- 230000009021 linear effect Effects 0.000 title claims abstract description 28
- 238000007781 pre-processing Methods 0.000 claims abstract description 30
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 18
- 230000001413 cellular effect Effects 0.000 claims description 13
- 230000001360 synchronised effect Effects 0.000 claims description 12
- 230000004044 response Effects 0.000 claims description 9
- 238000003672 processing method Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 230000003044 adaptive effect Effects 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 13
- 230000007246 mechanism Effects 0.000 description 12
- 229920006395 saturated elastomer Polymers 0.000 description 8
- 230000006854 communication Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 6
- 230000010363 phase shift Effects 0.000 description 6
- 230000002457 bidirectional effect Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 230000009022 nonlinear effect Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000002592 echocardiography Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- PXFBZOLANLWPMH-UHFFFAOYSA-N 16-Epiaffinine Natural products C1C(C2=CC=CC=C2N2)=C2C(=O)CC2C(=CC)CN(C)C1C2CO PXFBZOLANLWPMH-UHFFFAOYSA-N 0.000 description 1
- 241001203771 Eudonia echo Species 0.000 description 1
- 230000007175 bidirectional communication Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- XUPZAARQDNSRJB-SJDTYFKWSA-N trans-dothiepin hydrochloride Chemical compound [Cl-].C1SC2=CC=CC=C2C(=C/CC[NH+](C)C)/C2=CC=CC=C21 XUPZAARQDNSRJB-SJDTYFKWSA-N 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- G10L2021/02082—Noise filtering the noise being echo, reverberation of the speech
Landscapes
- Engineering & Computer Science (AREA)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Telephone Function (AREA)
Abstract
Description
Claims (15)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/345,990 | 2012-01-09 | ||
US13/345,990 US9343078B2 (en) | 2012-01-09 | 2012-01-09 | Pre-process (amplitude distortion) and post-process (phase synchronization) for linear AEC system |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103077726A CN103077726A (zh) | 2013-05-01 |
CN103077726B true CN103077726B (zh) | 2015-12-23 |
Family
ID=48154233
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201310008162.5A Expired - Fee Related CN103077726B (zh) | 2012-01-09 | 2013-01-09 | 用于线性声学回声消除系统的预处理和后处理 |
Country Status (2)
Country | Link |
---|---|
US (1) | US9343078B2 (zh) |
CN (1) | CN103077726B (zh) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB201309777D0 (en) * | 2013-05-31 | 2013-07-17 | Microsoft Corp | Echo suppression |
CN105812994B (zh) * | 2014-12-30 | 2018-08-21 | 展讯通信(上海)有限公司 | 一种降低失真回声的方法及装置 |
CN105516859B (zh) * | 2015-11-27 | 2019-04-16 | 深圳Tcl数字技术有限公司 | 消除回声的方法和系统 |
CN106060295B (zh) * | 2016-05-17 | 2019-05-24 | 西南交通大学 | 一种凸组合系数差的成比例仿射投影回声消除方法 |
US10177810B2 (en) * | 2016-09-02 | 2019-01-08 | Marvell World Trade Ltd. | Systems and methods for echo or interference cancellation power-saving management in a communication system |
CN108573710A (zh) * | 2017-03-13 | 2018-09-25 | 北京君正集成电路股份有限公司 | 一种实时去除录音回声的方法及装置 |
CN107105366B (zh) * | 2017-06-15 | 2022-09-23 | 歌尔股份有限公司 | 一种多通道回声消除电路、方法和智能设备 |
CN108376548B (zh) * | 2018-01-16 | 2020-12-08 | 厦门亿联网络技术股份有限公司 | 一种基于麦克风阵列的回声消除方法与系统 |
US10938994B2 (en) * | 2018-06-25 | 2021-03-02 | Cypress Semiconductor Corporation | Beamformer and acoustic echo canceller (AEC) system |
CN109040498B (zh) * | 2018-08-12 | 2022-01-07 | 瑞声科技(南京)有限公司 | 一种提升回声抵消效果的方法及其系统 |
JP7162242B2 (ja) * | 2018-10-15 | 2022-10-28 | パナソニックIpマネジメント株式会社 | 能動騒音低減装置、移動体装置、及び、能動騒音低減方法 |
US11038549B1 (en) * | 2020-06-08 | 2021-06-15 | Ciena Corporation | Receiver noise loading for control loop stability |
CN113707146A (zh) * | 2021-08-31 | 2021-11-26 | 北京达佳互联信息技术有限公司 | 信息交互方法和信息交互装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1905600A (zh) * | 2005-07-26 | 2007-01-31 | 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 |
CN101562669A (zh) * | 2009-03-11 | 2009-10-21 | 屈国良 | 自适应全双工全频段回声消除的方法 |
CN101964670A (zh) * | 2009-07-21 | 2011-02-02 | 雅马哈株式会社 | 回声抑制方法及回声抑制设备 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5680450A (en) * | 1995-02-24 | 1997-10-21 | Ericsson Inc. | Apparatus and method for canceling acoustic echoes including non-linear distortions in loudspeaker telephones |
US7869529B2 (en) * | 2006-06-14 | 2011-01-11 | Qualcomm Incorporated | System, method and computer-readable medium for detection and avoidance (DAA) of victim services in ultra-wideband systems (UWB) |
CN101689371B (zh) * | 2007-06-21 | 2013-02-06 | 皇家飞利浦电子股份有限公司 | 处理音频信号的设备和方法 |
DK2277327T3 (en) * | 2008-04-10 | 2017-01-09 | Gn Resound As | An audio system with feedback cancellation |
JP5228932B2 (ja) * | 2009-01-16 | 2013-07-03 | 沖電気工業株式会社 | 音信号調整装置、プログラム及び方法、並びに、電話装置 |
JP5332733B2 (ja) * | 2009-03-03 | 2013-11-06 | 沖電気工業株式会社 | エコーキャンセラ |
US8774399B2 (en) * | 2011-12-27 | 2014-07-08 | Broadcom Corporation | System for reducing speakerphone echo |
-
2012
- 2012-01-09 US US13/345,990 patent/US9343078B2/en not_active Expired - Fee Related
-
2013
- 2013-01-09 CN CN201310008162.5A patent/CN103077726B/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1905600A (zh) * | 2005-07-26 | 2007-01-31 | 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 |
CN101562669A (zh) * | 2009-03-11 | 2009-10-21 | 屈国良 | 自适应全双工全频段回声消除的方法 |
CN101964670A (zh) * | 2009-07-21 | 2011-02-02 | 雅马哈株式会社 | 回声抑制方法及回声抑制设备 |
Also Published As
Publication number | Publication date |
---|---|
US20130177162A1 (en) | 2013-07-11 |
CN103077726A (zh) | 2013-05-01 |
US9343078B2 (en) | 2016-05-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103077726B (zh) | 用于线性声学回声消除系统的预处理和后处理 | |
CN110838300B (zh) | 回声消除的处理方法及处理系统 | |
KR101469739B1 (ko) | 오디오 신호들을 처리하는 디바이스 및 방법 | |
KR100338657B1 (ko) | 비선형회로용반향소거기 | |
US7684559B2 (en) | Acoustic echo suppressor for hands-free speech communication | |
JP4090505B2 (ja) | エコー抑制装置及びエコー打消装置の非直線的プロセッサ | |
EP2822263B1 (en) | Communication device with echo suppression | |
CN101878637B (zh) | 用于对语音信号进行回声消除的方法和配置 | |
US8934620B2 (en) | Acoustic echo cancellation for high noise and excessive double talk | |
EP2229011B1 (en) | Hearing assistance devices with echo cancellation | |
WO2013166761A1 (zh) | 回声消除方法及装置 | |
JPS61502581A (ja) | 無線及び陸線電話用の全二重式スピ−カ−ホ−ン | |
CN104052526A (zh) | 用于声学回声抵消器的基于倒谱距离的消波 | |
CN110956975B (zh) | 回声消除方法及装置 | |
JP2009105666A (ja) | 拡声通話装置 | |
JPH11331046A (ja) | エコー抑圧方法及び装置並びにエコー抑圧プログラムが記憶されたコンピュータに読取り可能な記憶媒体 | |
CN102185992B (zh) | 一种用于手机的双向有源降噪装置 | |
JP3607625B2 (ja) | 多チャネル反響抑圧方法、その装置、そのプログラム及びその記録媒体 | |
JP2001521705A (ja) | 接続の両側のエコーを制御する方法と装置 | |
KR100827146B1 (ko) | 이동 단말에서 반향 제거 방법 및 장치 | |
JP2003324372A (ja) | 改善された音響エコーキャンセレーション | |
JP2861888B2 (ja) | エコー・ノイズキャンセラおよびエコー・ノイズ消去方法 | |
JP2891295B2 (ja) | 音響エコーキャンセラ | |
US10819858B2 (en) | Method for improving echo cancellation effect and system thereof | |
Raghavendran | Implementation of an acoustic echo canceller using matlab |
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: KY WIRE ELECTRIC CO., LTD. Free format text: FORMER OWNER: MEISHANG WEIRUI ELECTRIC COMPANY Effective date: 20131015 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20131015 Address after: The Cayman Islands, British West Indies Applicant after: Ky Wire Electric Co., Ltd. Address before: American California Applicant before: Meishang Weirui Electric Company |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20160711 Address after: American California Patentee after: Intel Corporation Address before: The Cayman Islands, British West Indies Patentee before: Ky Wire Electric Co., Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20200109 |