BR9806232A - Equalização cega dos efeitos de um canal de transmissão sobre um sinal de fala numérico - Google Patents
Equalização cega dos efeitos de um canal de transmissão sobre um sinal de fala numéricoInfo
- Publication number
- BR9806232A BR9806232A BR9806232A BR9806232A BR9806232A BR 9806232 A BR9806232 A BR 9806232A BR 9806232 A BR9806232 A BR 9806232A BR 9806232 A BR9806232 A BR 9806232A BR 9806232 A BR9806232 A BR 9806232A
- Authority
- BR
- Brazil
- Prior art keywords
- effects
- transmission channel
- speech signal
- blind equalization
- numeric
- Prior art date
Links
- 230000000694 effects Effects 0.000 title abstract 2
- 230000005540 biological transmission Effects 0.000 title 1
- 239000013598 vector Substances 0.000 abstract 2
- 230000003044 adaptive effect Effects 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
- H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
- H04L25/03057—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure
- H04L25/0307—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure using blind adaptation
-
- 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
-
- 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/24—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being the cepstrum
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Radio Relay Systems (AREA)
Abstract
ALA NUMéRICO"<D>. A invenção refere-se a um processo e a um dispositivo de equalização cega dos efeim (1000) em vetores cepstrais ({C~ n~(i)}). Cada um dos vetores cepstrais é submetido a um filtragem adaptativa (1002), a partir de um cepstre de referes cepstrais equalizados ({<sym>(i)}) representatdentificação automática da fala.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9709273A FR2766604B1 (fr) | 1997-07-22 | 1997-07-22 | Procede et dispositif d'egalisation aveugle des effets d'un canal de transmission sur un signal de parole numerique |
PCT/FR1998/001588 WO1999005831A1 (fr) | 1997-07-22 | 1998-07-20 | Procede et dispositif d'egalisation aveugle des effets d'un canal de transmission sur un signal de parole numerique |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9806232A true BR9806232A (pt) | 2000-03-21 |
Family
ID=9509462
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9806232A BR9806232A (pt) | 1997-07-22 | 1998-07-20 | Equalização cega dos efeitos de um canal de transmissão sobre um sinal de fala numérico |
Country Status (12)
Country | Link |
---|---|
US (1) | US6157909A (pt) |
EP (1) | EP0932964B1 (pt) |
JP (1) | JP2001501327A (pt) |
CN (1) | CN1130057C (pt) |
AU (1) | AU751333B2 (pt) |
BR (1) | BR9806232A (pt) |
CA (1) | CA2266654C (pt) |
DE (1) | DE69838474T2 (pt) |
ES (1) | ES2294817T3 (pt) |
FR (1) | FR2766604B1 (pt) |
HK (1) | HK1021099A1 (pt) |
WO (1) | WO1999005831A1 (pt) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6442221B1 (en) * | 1998-09-22 | 2002-08-27 | Zenith Electronics Corporation | Ghost eliminating equalizer |
US6292776B1 (en) * | 1999-03-12 | 2001-09-18 | Lucent Technologies Inc. | Hierarchial subband linear predictive cepstral features for HMM-based speech recognition |
US7725307B2 (en) | 1999-11-12 | 2010-05-25 | Phoenix Solutions, Inc. | Query engine for processing voice based queries including semantic decoding |
US7392185B2 (en) | 1999-11-12 | 2008-06-24 | Phoenix Solutions, Inc. | Speech based learning/training system using semantic decoding |
US7050977B1 (en) | 1999-11-12 | 2006-05-23 | Phoenix Solutions, Inc. | Speech-enabled server for internet website and method |
US9076448B2 (en) * | 1999-11-12 | 2015-07-07 | Nuance Communications, Inc. | Distributed real time speech recognition system |
US20020026253A1 (en) * | 2000-06-02 | 2002-02-28 | Rajan Jebu Jacob | Speech processing apparatus |
US7072833B2 (en) * | 2000-06-02 | 2006-07-04 | Canon Kabushiki Kaisha | Speech processing system |
US7010483B2 (en) * | 2000-06-02 | 2006-03-07 | Canon Kabushiki Kaisha | Speech processing system |
US7035790B2 (en) * | 2000-06-02 | 2006-04-25 | Canon Kabushiki Kaisha | Speech processing system |
US7532943B2 (en) * | 2001-08-21 | 2009-05-12 | Microsoft Corporation | System and methods for providing automatic classification of media entities according to sonic properties |
US7035873B2 (en) | 2001-08-20 | 2006-04-25 | Microsoft Corporation | System and methods for providing adaptive media property classification |
FR2819357B1 (fr) * | 2001-01-09 | 2016-02-12 | Thomson Csf | Procede et recepteur autodidacte pour determiner les parametres spatio-temporels d'un canal de propagation |
BRPI0101198B1 (pt) * | 2001-03-02 | 2015-09-01 | Unicamp | Processo concorrente para desconvolução autodidata de sinais digitais |
US7319954B2 (en) * | 2001-03-14 | 2008-01-15 | International Business Machines Corporation | Multi-channel codebook dependent compensation |
FR2822999B1 (fr) * | 2001-03-28 | 2003-07-04 | France Telecom | Procede et dispositif de correction centralisee du timbre de la parole sur un reseau de communications telephoniques |
US7941313B2 (en) * | 2001-05-17 | 2011-05-10 | Qualcomm Incorporated | System and method for transmitting speech activity information ahead of speech features in a distributed voice recognition system |
US7203643B2 (en) * | 2001-06-14 | 2007-04-10 | Qualcomm Incorporated | Method and apparatus for transmitting speech activity in distributed voice recognition systems |
US7035797B2 (en) * | 2001-12-14 | 2006-04-25 | Nokia Corporation | Data-driven filtering of cepstral time trajectories for robust speech recognition |
FR2848715B1 (fr) * | 2002-12-11 | 2005-02-18 | France Telecom | Procede et systeme de correction multi-references des deformations spectrales de la voix introduites par un reseau de communication |
US7027979B2 (en) * | 2003-01-14 | 2006-04-11 | Motorola, Inc. | Method and apparatus for speech reconstruction within a distributed speech recognition system |
JP2005249816A (ja) | 2004-03-01 | 2005-09-15 | Internatl Business Mach Corp <Ibm> | 信号強調装置、方法及びプログラム、並びに音声認識装置、方法及びプログラム |
WO2006106272A2 (fr) * | 2005-04-07 | 2006-10-12 | France Telecom | Procede de synchronisation entre une operation de traitement de reconnaissance vocale et une action de declenchement du dit traitement |
US9293130B2 (en) * | 2008-05-02 | 2016-03-22 | Nuance Communications, Inc. | Method and system for robust pattern matching in continuous speech for spotting a keyword of interest using orthogonal matching pursuit |
US20090287489A1 (en) * | 2008-05-15 | 2009-11-19 | Palm, Inc. | Speech processing for plurality of users |
US10149047B2 (en) * | 2014-06-18 | 2018-12-04 | Cirrus Logic Inc. | Multi-aural MMSE analysis techniques for clarifying audio signals |
KR102443637B1 (ko) * | 2017-10-23 | 2022-09-16 | 삼성전자주식회사 | 네트워크 연결 정보에 기반하여 잡음 제어 파라미터를 결정하는 전자 장치 및 그의 동작 방법 |
CN110907933B (zh) * | 2019-11-26 | 2022-12-27 | 西安空间无线电技术研究所 | 一种基于分布式的综合孔径相关处理***及方法 |
CN112233688B (zh) * | 2020-09-24 | 2022-03-11 | 北京声智科技有限公司 | 音频降噪方法、装置、设备及介质 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5097509A (en) * | 1990-03-28 | 1992-03-17 | Northern Telecom Limited | Rejection method for speech recognition |
FR2722631B1 (fr) * | 1994-07-13 | 1996-09-20 | France Telecom Etablissement P | Procede et systeme de filtrage adaptatif par egalisation aveugle d'un signal telephonique numerique et leurs applications |
US5598505A (en) * | 1994-09-30 | 1997-01-28 | Apple Computer, Inc. | Cepstral correction vector quantizer for speech recognition |
US5812972A (en) * | 1994-12-30 | 1998-09-22 | Lucent Technologies Inc. | Adaptive decision directed speech recognition bias equalization method and apparatus |
US5806022A (en) * | 1995-12-20 | 1998-09-08 | At&T Corp. | Method and system for performing speech recognition |
-
1997
- 1997-07-22 FR FR9709273A patent/FR2766604B1/fr not_active Expired - Fee Related
-
1998
- 1998-07-20 CN CN98801030A patent/CN1130057C/zh not_active Expired - Fee Related
- 1998-07-20 CA CA002266654A patent/CA2266654C/fr not_active Expired - Fee Related
- 1998-07-20 DE DE69838474T patent/DE69838474T2/de not_active Expired - Fee Related
- 1998-07-20 AU AU88133/98A patent/AU751333B2/en not_active Ceased
- 1998-07-20 ES ES98939720T patent/ES2294817T3/es not_active Expired - Lifetime
- 1998-07-20 JP JP11509410A patent/JP2001501327A/ja not_active Ceased
- 1998-07-20 EP EP98939720A patent/EP0932964B1/fr not_active Expired - Lifetime
- 1998-07-20 US US09/119,279 patent/US6157909A/en not_active Expired - Fee Related
- 1998-07-20 WO PCT/FR1998/001588 patent/WO1999005831A1/fr active IP Right Grant
- 1998-07-20 BR BR9806232A patent/BR9806232A/pt not_active Application Discontinuation
-
2000
- 2000-01-05 HK HK00100061A patent/HK1021099A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
HK1021099A1 (en) | 2000-05-26 |
DE69838474D1 (de) | 2007-11-08 |
CN1130057C (zh) | 2003-12-03 |
CN1234935A (zh) | 1999-11-10 |
CA2266654C (fr) | 2007-09-25 |
EP0932964B1 (fr) | 2007-09-26 |
FR2766604A1 (fr) | 1999-01-29 |
WO1999005831A1 (fr) | 1999-02-04 |
EP0932964A1 (fr) | 1999-08-04 |
DE69838474T2 (de) | 2008-06-26 |
US6157909A (en) | 2000-12-05 |
ES2294817T3 (es) | 2008-04-01 |
FR2766604B1 (fr) | 1999-10-01 |
AU751333B2 (en) | 2002-08-15 |
CA2266654A1 (fr) | 1999-02-04 |
AU8813398A (en) | 1999-02-16 |
JP2001501327A (ja) | 2001-01-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B07A | Application suspended after technical examination (opinion) [chapter 7.1 patent gazette] | ||
B15K | Others concerning applications: alteration of classification |
Free format text: ALTERADA A CLASSIFICACAO DE H04L 25/03 - G10L 3/02 PARA INT.CL.2010.01 G10L 21/02 - G10L 15/20 -H04L 25/03 Ipc: G10L 21/02 (2010.01), G10L 15/20 (2010.01), H04L 2 |
|
B09B | Patent application refused [chapter 9.2 patent gazette] |
Free format text: INDEFIRO O PEDIDO DE ACORDO COM BASE NO ART. 8OCOMBINADO COM O ART. 13O DA LPI. |
|
B09B | Patent application refused [chapter 9.2 patent gazette] |
Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL. |