WO2008047051A3 - Attenuation du survoisement, notamment pour la generation d'une excitation aupres d'un decodeur, en absence d'information - Google Patents

Attenuation du survoisement, notamment pour la generation d'une excitation aupres d'un decodeur, en absence d'information Download PDF

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Publication number
WO2008047051A3
WO2008047051A3 PCT/FR2007/052188 FR2007052188W WO2008047051A3 WO 2008047051 A3 WO2008047051 A3 WO 2008047051A3 FR 2007052188 W FR2007052188 W FR 2007052188W WO 2008047051 A3 WO2008047051 A3 WO 2008047051A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal
synthesis
overvoicing
excitation
samples
Prior art date
Application number
PCT/FR2007/052188
Other languages
English (en)
Other versions
WO2008047051A2 (fr
Inventor
David Virette
Balazs Kovesi
Original Assignee
France Telecom
David Virette
Balazs Kovesi
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 France Telecom, David Virette, Balazs Kovesi filed Critical France Telecom
Priority to MX2009004212A priority Critical patent/MX2009004212A/es
Priority to US12/446,280 priority patent/US8417520B2/en
Priority to CN2007800458535A priority patent/CN101573751B/zh
Priority to JP2009532870A priority patent/JP5289319B2/ja
Priority to AT07858612T priority patent/ATE536613T1/de
Priority to KR1020097010004A priority patent/KR101409305B1/ko
Priority to BRPI0718423-9A priority patent/BRPI0718423B1/pt
Priority to EP07858612A priority patent/EP2080194B1/fr
Priority to ES07858612T priority patent/ES2378972T3/es
Publication of WO2008047051A2 publication Critical patent/WO2008047051A2/fr
Publication of WO2008047051A3 publication Critical patent/WO2008047051A3/fr

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Classifications

    • 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
    • G10L25/90—Pitch determination of speech signals
    • 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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/09—Long term prediction, i.e. removing periodical redundancies, e.g. by using adaptive codebook or pitch predictor

Abstract

L'invention propose la synthèse d'un signal constitué de blocs consécutifs. Elle propose plus particulièrement, à la réception d'un tel signal, de rempl acer, par synthèse, des blocs perdus ou erronés de ce signal. Elle propose à cet effet une atténuation du survoisement lors de la génération d'une s ynthèse de signal. Plus particulièrement, on génère une excitation voisée à partir de la période de pitch ( T ) estimée ou transmise au bloc précédent, en appliquant éventuellement une correction de plus ou moins un échantillon ? la durée de cette période (comptée en nombre d'échantillons), par constitution de groupes (A',B',C',D') d?au moins deux échantillons et inversion des positions d'échantillons dans les groupes, de manière aléatoire (B',C') ou forcée. On casse ainsi une sur-harmonicité dans l'excitation générée et, de là, on atténue l'effet de survoisement dans la synthèse du signal généré.
PCT/FR2007/052188 2006-10-20 2007-10-17 Attenuation du survoisement, notamment pour la generation d'une excitation aupres d'un decodeur, en absence d'information WO2008047051A2 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
MX2009004212A MX2009004212A (es) 2006-10-20 2007-10-17 Atenuacion de superposicion de voz, en particular para generar una excitacion en un decodificador, en ausencia de informacion.
US12/446,280 US8417520B2 (en) 2006-10-20 2007-10-17 Attenuation of overvoicing, in particular for the generation of an excitation at a decoder when data is missing
CN2007800458535A CN101573751B (zh) 2006-10-20 2007-10-17 一种合成用连续的采样块表示的数字音频信号的方法和装置
JP2009532870A JP5289319B2 (ja) 2006-10-20 2007-10-17 隠蔽フレーム（パケット）を生成するための方法、プログラムおよび装置
AT07858612T ATE536613T1 (de) 2006-10-20 2007-10-17 Dämpfung von stimmüberlagerung, im besonderen zur erregungserzeugung bei einem decoder in abwesenheit von informationen
KR1020097010004A KR101409305B1 (ko) 2006-10-20 2007-10-17 정보의 부재 시에 디코더측에서의 여기를 생성하기 위한 과유성음화의 감쇄
BRPI0718423-9A BRPI0718423B1 (pt) 2006-10-20 2007-10-17 Método para sintetizar um sinal de áudio digital, dispositivo de síntese de sinal de áudio digital, dispositivo para receber um sinal de áudio digital, e memória de um dispositivo de síntese de sinal de áudio digital
EP07858612A EP2080194B1 (fr) 2006-10-20 2007-10-17 Attenuation du survoisement, notamment pour la generation d'une excitation aupres d'un decodeur, en absence d'information
ES07858612T ES2378972T3 (es) 2006-10-20 2007-10-17 Atenuación de la sobresonorización, en particular para la generación de una excitación en un decodificador, en ausencia de información

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0609225 2006-10-20
FR0609225 2006-10-20

Publications (2)

Publication Number Publication Date
WO2008047051A2 WO2008047051A2 (fr) 2008-04-24
WO2008047051A3 true WO2008047051A3 (fr) 2008-06-12

Family

ID=38011219

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2007/052188 WO2008047051A2 (fr) 2006-10-20 2007-10-17 Attenuation du survoisement, notamment pour la generation d'une excitation aupres d'un decodeur, en absence d'information

Country Status (11)

Country Link
US (1) US8417520B2 (fr)
EP (1) EP2080194B1 (fr)
JP (1) JP5289319B2 (fr)
KR (1) KR101409305B1 (fr)
CN (1) CN101573751B (fr)
AT (1) ATE536613T1 (fr)
BR (1) BRPI0718423B1 (fr)
ES (1) ES2378972T3 (fr)
MX (1) MX2009004212A (fr)
RU (1) RU2437170C2 (fr)
WO (1) WO2008047051A2 (fr)

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Publication number Priority date Publication date Assignee Title
IL196146A (en) * 2008-12-23 2014-01-30 Elta Systems Ltd Signal transmission system and method back to the source of transmission
GB0920729D0 (en) * 2009-11-26 2010-01-13 Icera Inc Signal fading
CN105976830B (zh) 2013-01-11 2019-09-20 华为技术有限公司 音频信号编码和解码方法、音频信号编码和解码装置
FR3004876A1 (fr) * 2013-04-18 2014-10-24 France Telecom Correction de perte de trame par injection de bruit pondere.
EP3011561B1 (fr) 2013-06-21 2017-05-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Appareil et procédé pour l'affaiblissement graduel amélioré de signal dans différents domaines pendant un masquage d'erreur
KR101854296B1 (ko) 2013-10-31 2018-05-03 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 시간 도메인 여기 신호를 변형하는 오류 은닉을 사용하여 디코딩된 오디오 정보를 제공하기 위한 오디오 디코더 및 방법
PT3288026T (pt) 2013-10-31 2020-07-20 Fraunhofer Ges Forschung Descodificador áudio e método para fornecer uma informação de áudio descodificada utilizando uma ocultação de erro baseada num sinal de excitação no domínio de tempo
EP2980798A1 (fr) * 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Commande dépendant de l'harmonicité d'un outil de filtre d'harmoniques

Citations (2)

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Publication number Priority date Publication date Assignee Title
WO2002021515A1 (fr) * 2000-09-05 2002-03-14 France Telecom Dissimulation d'erreurs de transmission dans un signal audio
WO2006079348A1 (fr) * 2005-01-31 2006-08-03 Sonorit Aps Procede de generation de trames de masquage dans un systeme de communication

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DE3374109D1 (en) * 1983-10-28 1987-11-19 Ibm Method of recovering lost information in a digital speech transmission system, and transmission system using said method
EP0712218B1 (fr) * 1994-11-10 1999-07-14 Telefonaktiebolaget Lm Ericsson Procédé et dispositif de reconstruction de sons pendant des effacements
GB2360178B (en) * 2000-03-06 2004-04-14 Mitel Corp Sub-packet insertion for packet loss compensation in Voice Over IP networks
EP1217613A1 (fr) * 2000-12-19 2002-06-26 Koninklijke Philips Electronics N.V. Reconstitution de trames manquantes ou mauvaises en téléphonie cellulaire
US7711563B2 (en) * 2001-08-17 2010-05-04 Broadcom Corporation Method and system for frame erasure concealment for predictive speech coding based on extrapolation of speech waveform
DE10219133B4 (de) * 2002-04-29 2007-02-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Verschleiern eines Fehlers
JP4445328B2 (ja) * 2004-05-24 2010-04-07 パナソニック株式会社 音声・楽音復号化装置および音声・楽音復号化方法
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Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
WO2002021515A1 (fr) * 2000-09-05 2002-03-14 France Telecom Dissimulation d'erreurs de transmission dans un signal audio
WO2006079348A1 (fr) * 2005-01-31 2006-08-03 Sonorit Aps Procede de generation de trames de masquage dans un systeme de communication

Also Published As

Publication number Publication date
JP2010507120A (ja) 2010-03-04
CN101573751B (zh) 2013-09-25
KR101409305B1 (ko) 2014-06-18
RU2009118918A (ru) 2010-11-27
BRPI0718423A2 (pt) 2013-11-12
US20100324907A1 (en) 2010-12-23
WO2008047051A2 (fr) 2008-04-24
BRPI0718423B1 (pt) 2020-03-10
JP5289319B2 (ja) 2013-09-11
RU2437170C2 (ru) 2011-12-20
EP2080194B1 (fr) 2011-12-07
EP2080194A2 (fr) 2009-07-22
CN101573751A (zh) 2009-11-04
KR20090090312A (ko) 2009-08-25
MX2009004212A (es) 2009-07-02
ATE536613T1 (de) 2011-12-15
US8417520B2 (en) 2013-04-09
ES2378972T3 (es) 2012-04-19

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