ES2294817T3 - Procedimiento y dispositivo de ecualizacion ciega de los efectos de un canal de transmision sobre una señal de voz digital. - Google Patents
Procedimiento y dispositivo de ecualizacion ciega de los efectos de un canal de transmision sobre una señal de voz digital. Download PDFInfo
- Publication number
- ES2294817T3 ES2294817T3 ES98939720T ES98939720T ES2294817T3 ES 2294817 T3 ES2294817 T3 ES 2294817T3 ES 98939720 T ES98939720 T ES 98939720T ES 98939720 T ES98939720 T ES 98939720T ES 2294817 T3 ES2294817 T3 ES 2294817T3
- Authority
- ES
- Spain
- Prior art keywords
- voice signal
- digital voice
- vectors
- transmission channel
- effects
- 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 - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 title abstract 4
- 230000000694 effects Effects 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- 239000013598 vector Substances 0.000 abstract 7
- 230000003044 adaptive effect Effects 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 1
- 230000009466 transformation Effects 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)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Radio Relay Systems (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Abstract
Procedimiento de ecualización ciega de los efectos de un canal de transmisión sobre una señal de voz digital ({Sn (t) desplazándose sobre el canal de transmisión, en el que se somete dicha señal de voz digital a una transformación en un conjunto de vectores cepstrales, siendo el conjunto de vectores cepstrales representativo de dicha señal de voz digital sobre un horizonte determinado, siendo definido un horizonte determinado como un número entero de ventanas sucesivas aplicadas a dicha señal de voz digital, caracterizado porque dicho procedimiento consiste además: - en calcular un cepstro de referencia ({Rn(i) representativo, para cada uno de los vectores cepstrales de dicho conjunto de vectores cepstrales, del cepstro a largo plazo de esa señal de voz; - en someter cada uno de los vectores cepstrales a un filtrado adaptativo a partir de dicho cepstro de referencia, para engendrar un conjunto de vectores cepstrales ecualizados ({ ¿ Cn(i) en el cual el efecto del canal de transmisión es sustancialmente suprimido, siendo dicho conjunto de vectores cepstrales representativo de una señal de voz digital ecualizada.
Applications Claiming Priority (1)
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 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2294817T3 true ES2294817T3 (es) | 2008-04-01 |
Family
ID=9509462
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES98939720T Expired - Lifetime ES2294817T3 (es) | 1997-07-22 | 1998-07-20 | Procedimiento y dispositivo de ecualizacion ciega de los efectos de un canal de transmision sobre una señal de voz digital. |
Country Status (12)
Country | Link |
---|---|
US (1) | US6157909A (es) |
EP (1) | EP0932964B1 (es) |
JP (1) | JP2001501327A (es) |
CN (1) | CN1130057C (es) |
AU (1) | AU751333B2 (es) |
BR (1) | BR9806232A (es) |
CA (1) | CA2266654C (es) |
DE (1) | DE69838474T2 (es) |
ES (1) | ES2294817T3 (es) |
FR (1) | FR2766604B1 (es) |
HK (1) | HK1021099A1 (es) |
WO (1) | WO1999005831A1 (es) |
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 |
US7392185B2 (en) | 1999-11-12 | 2008-06-24 | Phoenix Solutions, Inc. | Speech based learning/training system using semantic decoding |
US9076448B2 (en) * | 1999-11-12 | 2015-07-07 | Nuance Communications, Inc. | Distributed real time speech recognition system |
US7050977B1 (en) | 1999-11-12 | 2006-05-23 | Phoenix Solutions, Inc. | Speech-enabled server for internet website and method |
US7725307B2 (en) | 1999-11-12 | 2010-05-25 | Phoenix Solutions, Inc. | Query engine for processing voice based queries including semantic decoding |
US20020026253A1 (en) * | 2000-06-02 | 2002-02-28 | Rajan Jebu Jacob | Speech processing apparatus |
US7010483B2 (en) * | 2000-06-02 | 2006-03-07 | Canon Kabushiki Kaisha | Speech processing system |
US7072833B2 (en) * | 2000-06-02 | 2006-07-04 | 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 |
ES2675734T3 (es) * | 2005-04-07 | 2018-07-12 | Orange | Procedimiento de sincronización entre una operación de procesamiento de reconocimiento vocal y una acción de activación de dicho procesamiento |
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系统及方法 |
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 DE DE69838474T patent/DE69838474T2/de not_active Expired - Fee Related
- 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 BR BR9806232A patent/BR9806232A/pt not_active Application Discontinuation
- 1998-07-20 ES ES98939720T patent/ES2294817T3/es not_active Expired - Lifetime
- 1998-07-20 WO PCT/FR1998/001588 patent/WO1999005831A1/fr active IP Right Grant
- 1998-07-20 US US09/119,279 patent/US6157909A/en not_active Expired - Fee Related
- 1998-07-20 AU AU88133/98A patent/AU751333B2/en not_active Ceased
- 1998-07-20 EP EP98939720A patent/EP0932964B1/fr not_active Expired - Lifetime
- 1998-07-20 JP JP11509410A patent/JP2001501327A/ja not_active Ceased
-
2000
- 2000-01-05 HK HK00100061A patent/HK1021099A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
WO1999005831A1 (fr) | 1999-02-04 |
US6157909A (en) | 2000-12-05 |
DE69838474D1 (de) | 2007-11-08 |
BR9806232A (pt) | 2000-03-21 |
DE69838474T2 (de) | 2008-06-26 |
HK1021099A1 (en) | 2000-05-26 |
CN1130057C (zh) | 2003-12-03 |
CN1234935A (zh) | 1999-11-10 |
AU8813398A (en) | 1999-02-16 |
FR2766604A1 (fr) | 1999-01-29 |
JP2001501327A (ja) | 2001-01-30 |
CA2266654A1 (fr) | 1999-02-04 |
AU751333B2 (en) | 2002-08-15 |
CA2266654C (fr) | 2007-09-25 |
FR2766604B1 (fr) | 1999-10-01 |
EP0932964B1 (fr) | 2007-09-26 |
EP0932964A1 (fr) | 1999-08-04 |
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