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

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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US7305340B1 (en) * 2002-06-05 2007-12-04 At&T Corp. System and method for configuring voice synthesis
DE60210437D1 (de) * 2002-07-02 2006-05-18 Teltronic S A U Verfahren zur Synthese von Komfortgeräusch-Rahmen
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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
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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
EP2118889B1 (en) 2007-03-05 2012-10-03 Telefonaktiebolaget LM Ericsson (publ) Method and controller for smoothing stationary background noise
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
KR101518532B1 (ko) 2008-07-11 2015-05-07 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 오디오 인코더, 오디오 디코더, 오디오 신호, 오디오 스트림을 부호화 및 복호화하는 장치 및 컴퓨터 프로그램
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
BR112013020592B1 (pt) 2011-02-14 2021-06-22 Fraunhofer-Gellschaft Zur Fôrderung Der Angewandten Forschung E. V. Codec de áudio utilizando síntese de ruído durante fases inativas
MX2013009304A (es) 2011-02-14 2013-10-03 Fraunhofer Ges Forschung Aparato y metodo para codificar una porcion de una señal de audio utilizando deteccion de un transiente y resultado de calidad.
CN103503061B (zh) 2011-02-14 2016-02-17 弗劳恩霍夫应用研究促进协会 在一频谱域中用以处理已解码音频信号的装置及方法
AR085224A1 (es) 2011-02-14 2013-09-18 Fraunhofer Ges Forschung Codec de audio utilizando sintesis de ruido durante fases inactivas
TWI484479B (zh) 2011-02-14 2015-05-11 Fraunhofer Ges Forschung 用於低延遲聯合語音及音訊編碼中之錯誤隱藏之裝置和方法
JP6110314B2 (ja) 2011-02-14 2017-04-05 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 整列したルックアヘッド部分を用いてオーディオ信号を符号化及び復号するための装置並びに方法
EP3239978B1 (en) 2011-02-14 2018-12-26 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encoding and decoding of pulse positions of tracks of an audio signal
EP2550653B1 (en) 2011-02-14 2014-04-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Information signal representation using lapped transform
TWI480856B (zh) * 2011-02-14 2015-04-11 Fraunhofer Ges Forschung 音訊編解碼器中之雜訊產生技術
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
EP3217399B1 (en) * 2016-03-11 2018-11-21 GN Hearing A/S Kalman filtering based speech enhancement using a codebook based approach

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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
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Also Published As

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

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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.