ES2121189T3 - Procedimiento y aparato de codificado/decodificado de ruidos de fondo. - Google Patents

Procedimiento y aparato de codificado/decodificado de ruidos de fondo.

Info

Publication number
ES2121189T3
ES2121189T3 ES94905887T ES94905887T ES2121189T3 ES 2121189 T3 ES2121189 T3 ES 2121189T3 ES 94905887 T ES94905887 T ES 94905887T ES 94905887 T ES94905887 T ES 94905887T ES 2121189 T3 ES2121189 T3 ES 2121189T3
Authority
ES
Spain
Prior art keywords
background sounds
background noise
encoder
decoding procedure
decoder
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
Application number
ES94905887T
Other languages
English (en)
Inventor
Rolf Anders Bergstrom
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of ES2121189T3 publication Critical patent/ES2121189T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/028—Noise substitution, i.e. substituting non-tonal spectral components by noisy source
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L25/78—Detection of presence or absence of voice signals

Abstract

UN METODO Y UN EQUIPO PARA CODIFICAR Y/O DECODIFICAR SONIDOS DE FONDO EN UNA ESTRUCTURA DIGITAL BASADA EN UN CODIFIFICADOR Y/O DECODIFICADOR DE HABLA QUE CONSTA DE UNA FUENTE DE SEÑAL CONECTADA A UN FILTRO, DEFINIDO (12) POR UN CONJUNTO DE PARAMETROS DE FILTRO PARA CADA ESTRUCTURA, PARA REPRODUCIR LA SEÑAL QUE HAY QUE CODIFICAR Y/O DECODIFICAR COMPRENDE LAS FASES DE: DETECTAR (16) SI LA SEÑAL DIRIGIDA A ESTE CODIFICADOR/DECODIFICADOR REPRESENTA PRIMARIAMENTE HABLA O SONIDOS DE FONDO Y, CUANDO LA SEÑAL REPRESENTA PRIMARIAMENTE SONIDOS DE FONDO, RESTRINGIR (18) LA VARIACION TEMPORAL ENTRE ESTRUCTURAS CONSECUTIVAS Y/O EL DOMINIO DE AL MENOS CIERTOS PARAMETROS DE FILTRO EN EL MENCIONADO CONJUNTO.
ES94905887T 1993-01-29 1994-01-17 Procedimiento y aparato de codificado/decodificado de ruidos de fondo. Expired - Lifetime ES2121189T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9300290A SE470577B (sv) 1993-01-29 1993-01-29 Förfarande och anordning för kodning och/eller avkodning av bakgrundsljud

Publications (1)

Publication Number Publication Date
ES2121189T3 true ES2121189T3 (es) 1998-11-16

Family

ID=20388714

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94905887T Expired - Lifetime ES2121189T3 (es) 1993-01-29 1994-01-17 Procedimiento y aparato de codificado/decodificado de ruidos de fondo.

Country Status (22)

Country Link
US (1) US5632004A (es)
EP (1) EP0634041B1 (es)
JP (1) JPH07505732A (es)
KR (1) KR100216018B1 (es)
CN (1) CN1044293C (es)
AT (1) ATE168809T1 (es)
AU (1) AU666612B2 (es)
BR (1) BR9403927A (es)
CA (1) CA2133071A1 (es)
DE (1) DE69411817T2 (es)
DK (1) DK0634041T3 (es)
ES (1) ES2121189T3 (es)
FI (1) FI944494A0 (es)
HK (1) HK1015183A1 (es)
MY (1) MY111784A (es)
NO (1) NO306688B1 (es)
NZ (1) NZ261180A (es)
PH (1) PH31235A (es)
SE (1) SE470577B (es)
SG (1) SG46992A1 (es)
TW (1) TW262618B (es)
WO (1) WO1994017515A1 (es)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE501305C2 (sv) * 1993-05-26 1995-01-09 Ericsson Telefon Ab L M Förfarande och anordning för diskriminering mellan stationära och icke stationära signaler
EP0737959A4 (en) * 1994-10-28 1999-05-06 Nippon Steel Corp DEVICE FOR DECODING ENCODED DATA, AND USING DEVICE FOR DECODING MULTIPLEXED AUDIO / VIDEO DATA
US5642464A (en) * 1995-05-03 1997-06-24 Northern Telecom Limited Methods and apparatus for noise conditioning in digital speech compression systems using linear predictive coding
US5950151A (en) * 1996-02-12 1999-09-07 Lucent Technologies Inc. Methods for implementing non-uniform filters
US6026356A (en) * 1997-07-03 2000-02-15 Nortel Networks Corporation Methods and devices for noise conditioning signals representative of audio information in compressed and digitized form
JP2982147B1 (ja) * 1998-10-08 1999-11-22 コナミ株式会社 背景音切替装置、背景音切替方法、背景音切替プログラムが記録された可読記録媒体及びビデオゲーム装置
JP2000112485A (ja) 1998-10-08 2000-04-21 Konami Co Ltd 背景音制御装置、背景音制御方法、背景音制御プログラムが記録された可読記録媒体及びビデオゲーム装置
US6519260B1 (en) 1999-03-17 2003-02-11 Telefonaktiebolaget Lm Ericsson (Publ) Reduced delay priority for comfort noise
AU1049601A (en) * 1999-10-25 2001-05-08 Lernout And Hauspie Speech Products N.V. Small vocabulary speaker dependent speech recognition
JP4095227B2 (ja) 2000-03-13 2008-06-04 株式会社コナミデジタルエンタテインメント ビデオゲーム装置、ビデオゲームにおける背景音出力設定方法及び背景音出力設定プログラムが記録されたコンピュータ読み取り可能な記録媒体
US8100277B1 (en) 2005-07-14 2012-01-24 Rexam Closures And Containers Inc. Peelable seal for an opening in a container neck
JP5198477B2 (ja) 2007-03-05 2013-05-15 テレフオンアクチーボラゲット エル エム エリクソン（パブル） 定常的な背景雑音の平滑化を制御するための方法及び装置
PL2132731T3 (pl) 2007-03-05 2015-12-31 Ericsson Telefon Ab L M Metoda i konfiguracja stosowana do wygładzania stacjonarnego szumu tła
US8251236B1 (en) 2007-11-02 2012-08-28 Berry Plastics Corporation Closure with lifting mechanism
CN105440018A (zh) * 2015-11-27 2016-03-30 福州闽海药业有限公司 一种锆催化的右旋兰索拉唑的不对称氧化合成方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4363122A (en) * 1980-09-16 1982-12-07 Northern Telecom Limited Mitigation of noise signal contrast in a digital speech interpolation transmission system
GB2137791B (en) * 1982-11-19 1986-02-26 Secr Defence Noise compensating spectral distance processor
US4700361A (en) * 1983-10-07 1987-10-13 Dolby Laboratories Licensing Corporation Spectral emphasis and de-emphasis
ES2188588T3 (es) * 1988-03-11 2003-07-01 British Telecomm Detector de actividad de voz.
US5007094A (en) * 1989-04-07 1991-04-09 Gte Products Corporation Multipulse excited pole-zero filtering approach for noise reduction
JPH02288520A (ja) * 1989-04-28 1990-11-28 Hitachi Ltd 背景音再生機能付き音声符号復号方式
GB2239971B (en) * 1989-12-06 1993-09-29 Ca Nat Research Council System for separating speech from background noise
KR950013551B1 (ko) * 1990-05-28 1995-11-08 마쯔시다덴기산교 가부시기가이샤 잡음신호예측장치
US5218619A (en) * 1990-12-17 1993-06-08 Ericsson Ge Mobile Communications Holding, Inc. CDMA subtractive demodulation
US5341456A (en) * 1992-12-02 1994-08-23 Qualcomm Incorporated Method for determining speech encoding rate in a variable rate vocoder

Also Published As

Publication number Publication date
AU5981394A (en) 1994-08-15
NO306688B1 (no) 1999-12-06
SG46992A1 (en) 1998-03-20
DK0634041T3 (da) 1998-10-26
CA2133071A1 (en) 1994-07-30
CN1044293C (zh) 1999-07-21
EP0634041B1 (en) 1998-07-22
JPH07505732A (ja) 1995-06-22
MY111784A (en) 2000-12-30
AU666612B2 (en) 1996-02-15
HK1015183A1 (en) 1999-10-08
DE69411817T2 (de) 1998-12-03
PH31235A (en) 1998-06-16
US5632004A (en) 1997-05-20
TW262618B (es) 1995-11-11
SE9300290L (sv) 1994-07-30
FI944494A (fi) 1994-09-28
SE9300290D0 (sv) 1993-01-29
NO943584D0 (no) 1994-09-27
KR950701113A (ko) 1995-02-20
DE69411817D1 (de) 1998-08-27
FI944494A0 (fi) 1994-09-28
NZ261180A (en) 1996-07-26
KR100216018B1 (ko) 1999-08-16
WO1994017515A1 (en) 1994-08-04
ATE168809T1 (de) 1998-08-15
SE470577B (sv) 1994-09-19
CN1101214A (zh) 1995-04-05
EP0634041A1 (en) 1995-01-18
NO943584L (no) 1994-09-27
BR9403927A (pt) 1999-06-01

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