BR9915577A - Processo para gerar ruìdo de conforto em umdecodificador de fala, e, aparelho para produzirparâmetros de ruìdo de conforto - Google Patents

Processo para gerar ruìdo de conforto em umdecodificador de fala, e, aparelho para produzirparâmetros de ruìdo de conforto

Info

Publication number
BR9915577A
BR9915577A BR9915577-0A BR9915577A BR9915577A BR 9915577 A BR9915577 A BR 9915577A BR 9915577 A BR9915577 A BR 9915577A BR 9915577 A BR9915577 A BR 9915577A
Authority
BR
Brazil
Prior art keywords
comfort noise
parameters
speech decoder
comfort
producing
Prior art date
Application number
BR9915577-0A
Other languages
English (en)
Inventor
Erik Ekudden
Roar Hagen
Ingemar Johansson
Original Assignee
Ericsson Telefon Ab L M
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26807080&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR9915577(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of BR9915577A publication Critical patent/BR9915577A/pt

Links

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
    • 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
    • G10L19/012—Comfort noise or silence coding
    • 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
    • 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
    • G10L19/04—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 predictive techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Noise Elimination (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

"PROCESSO PARA GERAR RUìDO DE CONFORTO EM UMDECODIFICADOR DE FALA, E, APARELHO PARA PRODUZIRPARâMETROS DE RUìDO DE CONFORTO". A qualidade doruído de conforto gerado por um decodificador de fala (93) duranteperíodos de não conversação e melhorada modificando (30, 75)valores de parâmetro de ruído de fundo (33) normalmente usadopara gerar ruído de conforto. Os valores de parâmetros de ruído deconforto são modificados em resposta a informação devariabilidade (43) associada a um parâmetro de ruído de fundo. Osvalores de parâmetro de ruído de fundo (35) são então usadospara gerar o ruído de conforto.
BR9915577-0A 1998-11-23 1999-11-08 Processo para gerar ruìdo de conforto em umdecodificador de fala, e, aparelho para produzirparâmetros de ruìdo de conforto BR9915577A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10955598P 1998-11-23 1998-11-23
US09/391,768 US7124079B1 (en) 1998-11-23 1999-09-08 Speech coding with comfort noise variability feature for increased fidelity
PCT/SE1999/002023 WO2000031719A2 (en) 1998-11-23 1999-11-08 Speech coding with comfort noise variability feature for increased fidelity

Publications (1)

Publication Number Publication Date
BR9915577A true BR9915577A (pt) 2001-11-13

Family

ID=26807080

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9915577-0A BR9915577A (pt) 1998-11-23 1999-11-08 Processo para gerar ruìdo de conforto em umdecodificador de fala, e, aparelho para produzirparâmetros de ruìdo de conforto

Country Status (12)

Country Link
US (1) US7124079B1 (pt)
EP (1) EP1145222B1 (pt)
JP (1) JP4659216B2 (pt)
KR (1) KR100675126B1 (pt)
CN (1) CN1183512C (pt)
AR (1) AR028468A1 (pt)
AU (1) AU760447B2 (pt)
BR (1) BR9915577A (pt)
CA (1) CA2349944C (pt)
DE (1) DE69917677T2 (pt)
TW (1) TW469423B (pt)
WO (1) WO2000031719A2 (pt)

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US20070110042A1 (en) * 1999-12-09 2007-05-17 Henry Li Voice and data exchange over a packet based network
US6662155B2 (en) * 2000-11-27 2003-12-09 Nokia Corporation Method and system for comfort noise generation in speech communication
US20030120484A1 (en) * 2001-06-12 2003-06-26 David Wong Method and system for generating colored comfort noise in the absence of silence insertion description packets
US7305340B1 (en) * 2002-06-05 2007-12-04 At&T Corp. System and method for configuring voice synthesis
ES2261620T3 (es) * 2002-07-02 2006-11-16 Teltronic S.A.U. Metodo de sintesis de tramas de ruido aceptable.
FR2861247B1 (fr) * 2003-10-21 2006-01-27 Cit Alcatel Terminal de telephonie a gestion de la qualite de restituton vocale pendant la reception
DE102004063290A1 (de) * 2004-12-29 2006-07-13 Siemens Ag Verfahren zur Anpassung von Comfort Noise Generation Parametern
FR2881867A1 (fr) * 2005-02-04 2006-08-11 France Telecom Procede de transmission de marques de fin de parole dans un systeme de reconnaissance de la parole
US8874437B2 (en) * 2005-03-28 2014-10-28 Tellabs Operations, Inc. Method and apparatus for modifying an encoded signal for voice quality enhancement
CA2609945C (en) 2005-06-18 2012-12-04 Nokia Corporation System and method for adaptive transmission of comfort noise parameters during discontinuous speech transmission
US20070038443A1 (en) * 2005-08-15 2007-02-15 Broadcom Corporation User-selectable music-on-hold for a communications device
US7610197B2 (en) * 2005-08-31 2009-10-27 Motorola, Inc. Method and apparatus for comfort noise generation in speech communication systems
CN101246688B (zh) * 2007-02-14 2011-01-12 华为技术有限公司 一种对背景噪声信号进行编解码的方法、系统和装置
PL2118889T3 (pl) * 2007-03-05 2013-03-29 Ericsson Telefon Ab L M Sposób i sterownik do wygładzania stacjonarnego szumu tła
GB2454470B (en) * 2007-11-07 2011-03-23 Red Lion 49 Ltd Controlling an audio signal
US20090154718A1 (en) * 2007-12-14 2009-06-18 Page Steven R Method and apparatus for suppressor backfill
DE102008009719A1 (de) * 2008-02-19 2009-08-20 Siemens Enterprise Communications Gmbh & Co. Kg Verfahren und Mittel zur Enkodierung von Hintergrundrauschinformationen
US8290141B2 (en) * 2008-04-18 2012-10-16 Freescale Semiconductor, Inc. Techniques for comfort noise generation in a communication system
ES2988414T3 (es) 2008-07-11 2024-11-20 Fraunhofer Ges Zur Foerderungder Angewandten Forschung E V Decodificador de audio
EP2676268B1 (en) 2011-02-14 2014-12-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for processing a decoded audio signal in a spectral domain
TR201903388T4 (tr) 2011-02-14 2019-04-22 Fraunhofer Ges Forschung Bir ses sinyalinin parçalarının darbe konumlarının şifrelenmesi ve çözülmesi.
JP5914527B2 (ja) 2011-02-14 2016-05-11 フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン 過渡検出及び品質結果を使用してオーディオ信号の一部分を符号化する装置及び方法
WO2012110476A1 (en) 2011-02-14 2012-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Linear prediction based coding scheme using spectral domain noise shaping
TWI488176B (zh) 2011-02-14 2015-06-11 Fraunhofer Ges Forschung 音訊信號音軌脈衝位置之編碼與解碼技術
AU2012217162B2 (en) * 2011-02-14 2015-11-26 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Noise generation in audio codecs
SG192718A1 (en) * 2011-02-14 2013-09-30 Fraunhofer Ges Forschung Audio codec using noise synthesis during inactive phases
WO2012110447A1 (en) 2011-02-14 2012-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for error concealment in low-delay unified speech and audio coding (usac)
WO2012110473A1 (en) 2011-02-14 2012-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for encoding and decoding an audio signal using an aligned look-ahead portion
PL2550653T3 (pl) 2011-02-14 2014-09-30 Fraunhofer Ges Forschung Reprezentacja sygnału informacyjnego z użyciem transformacji zakładkowej
US20140270249A1 (en) 2013-03-12 2014-09-18 Motorola Mobility Llc Method and Apparatus for Estimating Variability of Background Noise for Noise Suppression
US20140278393A1 (en) 2013-03-12 2014-09-18 Motorola Mobility Llc Apparatus and Method for Power Efficient Signal Conditioning for a Voice Recognition System
CN105225668B (zh) * 2013-05-30 2017-05-10 华为技术有限公司 信号编码方法及设备
DK3217399T3 (en) * 2016-03-11 2019-02-25 Gn Hearing As Kalman filtering based speech enhancement using a codebook based approach
US12080317B2 (en) 2019-08-30 2024-09-03 Dolby Laboratories Licensing Corporation Pre-conditioning audio for echo cancellation in machine perception

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5630016A (en) 1992-05-28 1997-05-13 Hughes Electronics Comfort noise generation for digital communication systems
JP2541484B2 (ja) * 1992-11-27 1996-10-09 日本電気株式会社 音声符号化装置
US5485522A (en) * 1993-09-29 1996-01-16 Ericsson Ge Mobile Communications, Inc. System for adaptively reducing noise in speech signals
SE501981C2 (sv) * 1993-11-02 1995-07-03 Ericsson Telefon Ab L M Förfarande och anordning för diskriminering mellan stationära och icke stationära signaler
US5657422A (en) 1994-01-28 1997-08-12 Lucent Technologies Inc. Voice activity detection driven noise remediator
US5794199A (en) * 1996-01-29 1998-08-11 Texas Instruments Incorporated Method and system for improved discontinuous speech transmission
US5960389A (en) * 1996-11-15 1999-09-28 Nokia Mobile Phones Limited Methods for generating comfort noise during discontinuous transmission
JP3464371B2 (ja) * 1996-11-15 2003-11-10 ノキア モービル フォーンズ リミテッド 不連続伝送中に快適雑音を発生させる改善された方法
US5893056A (en) 1997-04-17 1999-04-06 Northern Telecom Limited Methods and apparatus for generating noise signals from speech signals

Also Published As

Publication number Publication date
KR100675126B1 (ko) 2007-01-26
JP2003529950A (ja) 2003-10-07
AU760447B2 (en) 2003-05-15
CN1183512C (zh) 2005-01-05
DE69917677T2 (de) 2005-06-02
EP1145222A3 (en) 2003-05-14
EP1145222B1 (en) 2004-05-26
WO2000031719A3 (en) 2003-03-20
JP4659216B2 (ja) 2011-03-30
CN1354872A (zh) 2002-06-19
EP1145222A2 (en) 2001-10-17
AU1591100A (en) 2000-06-13
US7124079B1 (en) 2006-10-17
TW469423B (en) 2001-12-21
KR20010080497A (ko) 2001-08-22
CA2349944C (en) 2010-01-12
AR028468A1 (es) 2003-05-14
DE69917677D1 (de) 2004-07-01
CA2349944A1 (en) 2000-06-02
WO2000031719A2 (en) 2000-06-02

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B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

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B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1913 DE 04/09/2007.