BR112013016222A2 - estimação e supressão de não linearidades de alto-falante harmônico. - Google Patents
estimação e supressão de não linearidades de alto-falante harmônico.Info
- Publication number
- BR112013016222A2 BR112013016222A2 BR112013016222A BR112013016222A BR112013016222A2 BR 112013016222 A2 BR112013016222 A2 BR 112013016222A2 BR 112013016222 A BR112013016222 A BR 112013016222A BR 112013016222 A BR112013016222 A BR 112013016222A BR 112013016222 A2 BR112013016222 A2 BR 112013016222A2
- Authority
- BR
- Brazil
- Prior art keywords
- harmonic
- suppression
- estimation
- nonlinearities
- speaker
- Prior art date
Links
- 230000001629 suppression Effects 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
- H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
-
- 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
-
- 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
- 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
- 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
- H04B3/237—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 using two adaptive filters, e.g. for near end and for end echo cancelling
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Multimedia (AREA)
- Human Computer Interaction (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Computer Networks & Wireless Communication (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Circuit For Audible Band Transducer (AREA)
- Telephone Function (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/SE2011/050119 WO2012105880A1 (en) | 2011-02-03 | 2011-02-03 | Estimation and suppression of harmonic loudspeaker nonlinearities |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| BR112013016222A2 true BR112013016222A2 (pt) | 2018-05-15 |
| BR112013016222B1 BR112013016222B1 (pt) | 2020-12-15 |
Family
ID=46602963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR112013016222-8A BR112013016222B1 (pt) | 2011-02-03 | 2011-02-03 | Método de estimar a potência de eco, método de supressão de eco, estimador de potência de eco harmônico, cancelador de eco, e, equipamento de usuário |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US9420390B2 (pt) |
| EP (1) | EP2671223B1 (pt) |
| CN (1) | CN103339671B (pt) |
| BR (1) | BR112013016222B1 (pt) |
| ES (1) | ES2558559T3 (pt) |
| WO (1) | WO2012105880A1 (pt) |
| ZA (1) | ZA201304705B (pt) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9065895B2 (en) | 2012-02-22 | 2015-06-23 | Broadcom Corporation | Non-linear echo cancellation |
| GB2509493A (en) | 2012-12-21 | 2014-07-09 | Microsoft Corp | Suppressing Echo in a received audio signal by estimating the echo power in the received audio signal based on an FIR filter estimate |
| GB2510331A (en) | 2012-12-21 | 2014-08-06 | Microsoft Corp | Echo suppression in an audio signal |
| GB2512022A (en) | 2012-12-21 | 2014-09-24 | Microsoft Corp | Echo suppression |
| US20150003606A1 (en) * | 2013-06-28 | 2015-01-01 | Broadcom Corporation | Detecting and quantifying non-linear characteristics of audio signals |
| GB201321052D0 (en) * | 2013-11-29 | 2014-01-15 | Microsoft Corp | Detecting nonlinear amplitude processing |
| EP3080975B1 (en) * | 2013-12-12 | 2017-07-12 | Koninklijke Philips N.V. | Echo cancellation |
| US20170024495A1 (en) * | 2015-07-21 | 2017-01-26 | Positive Grid LLC | Method of modeling characteristics of a musical instrument |
| JP6537997B2 (ja) * | 2016-04-12 | 2019-07-03 | 日本電信電話株式会社 | エコー抑圧装置、その方法、プログラム、及び記録媒体 |
| US10129408B1 (en) * | 2016-10-11 | 2018-11-13 | Google Llc | Residual echo detection based on non-causality |
| US9928847B1 (en) * | 2017-08-04 | 2018-03-27 | Revolabs, Inc. | System and method for acoustic echo cancellation |
| CN107958671B (zh) * | 2017-11-22 | 2021-04-13 | 广州市六体智能科技有限公司 | 一种执法记录仪的回声消除装置 |
| CN107705799B (zh) * | 2017-11-24 | 2020-12-11 | 苏州狗尾草智能科技有限公司 | 聊天机器人回声消除方法及装置 |
| DE102018129525A1 (de) * | 2018-11-23 | 2020-05-28 | Harman Becker Automotive Systems Gmbh | Nichtlineare akustische echokompensation |
| US10964305B2 (en) * | 2019-05-20 | 2021-03-30 | Bose Corporation | Mitigating impact of double talk for residual echo suppressors |
| KR20220157475A (ko) | 2020-03-23 | 2022-11-29 | 돌비 레버러토리즈 라이쎈싱 코오포레이션 | 반향 잔류 억제 |
| US20230300524A1 (en) * | 2022-03-21 | 2023-09-21 | Qualcomm Incorporated | Adaptively adjusting an input current limit for a boost converter |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4629829A (en) | 1984-12-14 | 1986-12-16 | Motorola, Inc. | Full duplex speakerphone for radio and landline telephones |
| DE19831320A1 (de) * | 1998-07-13 | 2000-01-27 | Ericsson Telefon Ab L M | Digitales adaptives Filter und akustischer Echokompensator |
| KR20040030817A (ko) * | 2001-07-20 | 2004-04-09 | 코닌클리즈케 필립스 일렉트로닉스 엔.브이. | 통신 시스템, 에코 제거 수단 및 에코 제거 방법 |
| JP3753996B2 (ja) | 2002-03-20 | 2006-03-08 | 日本電信電話株式会社 | 反響抑圧装置、反響抑圧方法及びプログラム |
| US7894598B2 (en) * | 2004-12-14 | 2011-02-22 | Nuance Communications, Inc. | System for limiting receive audio |
| US20060188089A1 (en) * | 2005-02-18 | 2006-08-24 | Diethorn Eric J | Reduction in acoustic coupling in communication systems and appliances using multiple microphones |
| US7426270B2 (en) * | 2005-08-10 | 2008-09-16 | Clarity Technologies, Inc. | Method and system for clear signal capture |
| US8433074B2 (en) * | 2005-10-26 | 2013-04-30 | Nec Corporation | Echo suppressing method and apparatus |
| FR2908003B1 (fr) * | 2006-10-26 | 2009-04-03 | Parrot Sa | Procede de reduction de l'echo acoustique residuel apres supression d'echo dans un dispositif"mains libres" |
| GB2448201A (en) * | 2007-04-04 | 2008-10-08 | Zarlink Semiconductor Inc | Cancelling non-linear echo during full duplex communication in a hands free communication system. |
| DE102008039330A1 (de) * | 2008-01-31 | 2009-08-13 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zum Berechnen von Filterkoeffizienten zur Echounterdrückung |
| US8213598B2 (en) * | 2008-02-26 | 2012-07-03 | Microsoft Corporation | Harmonic distortion residual echo suppression |
| US8538749B2 (en) * | 2008-07-18 | 2013-09-17 | Qualcomm Incorporated | Systems, methods, apparatus, and computer program products for enhanced intelligibility |
| CN101778183B (zh) * | 2009-01-13 | 2013-06-05 | 华为终端有限公司 | 一种残留回声抑制方法及设备 |
| US8634569B2 (en) * | 2010-01-08 | 2014-01-21 | Conexant Systems, Inc. | Systems and methods for echo cancellation and echo suppression |
-
2011
- 2011-02-03 BR BR112013016222-8A patent/BR112013016222B1/pt active IP Right Grant
- 2011-02-03 CN CN201180066775.3A patent/CN103339671B/zh active Active
- 2011-02-03 ES ES11857875.6T patent/ES2558559T3/es active Active
- 2011-02-03 WO PCT/SE2011/050119 patent/WO2012105880A1/en active Application Filing
- 2011-02-03 US US13/980,525 patent/US9420390B2/en active Active
- 2011-02-03 EP EP11857875.6A patent/EP2671223B1/en active Active
-
2013
- 2013-06-24 ZA ZA2013/04705A patent/ZA201304705B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US20130287216A1 (en) | 2013-10-31 |
| EP2671223A1 (en) | 2013-12-11 |
| BR112013016222B1 (pt) | 2020-12-15 |
| CN103339671B (zh) | 2016-05-04 |
| WO2012105880A1 (en) | 2012-08-09 |
| ES2558559T3 (es) | 2016-02-05 |
| CN103339671A (zh) | 2013-10-02 |
| ZA201304705B (en) | 2014-09-25 |
| EP2671223A4 (en) | 2014-07-23 |
| EP2671223B1 (en) | 2015-10-21 |
| US9420390B2 (en) | 2016-08-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B06F | Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette] | ||
| B06U | Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette] | ||
| B15K | Others concerning applications: alteration of classification |
Free format text: AS CLASSIFICACOES ANTERIORES ERAM: G10L 21/02 , H04B 3/20 , H04M 9/08 Ipc: G10L 21/02 (2013.01), G10L 21/0208 (2013.01), H04B |
|
| B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
| B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 03/02/2011, OBSERVADAS AS CONDICOES LEGAIS. |