MX2009004212A - Atenuacion de superposicion de voz, en particular para generar una excitacion en un decodificador, en ausencia de informacion. - Google Patents

Atenuacion de superposicion de voz, en particular para generar una excitacion en un decodificador, en ausencia de informacion.

Info

Publication number
MX2009004212A
MX2009004212A MX2009004212A MX2009004212A MX2009004212A MX 2009004212 A MX2009004212 A MX 2009004212A MX 2009004212 A MX2009004212 A MX 2009004212A MX 2009004212 A MX2009004212 A MX 2009004212A MX 2009004212 A MX2009004212 A MX 2009004212A
Authority
MX
Mexico
Prior art keywords
signal
synthesis
overvoicing
excitation
samples
Prior art date
Application number
MX2009004212A
Other languages
English (en)
Inventor
Balazs Kovesi
David Virette
Original Assignee
France Telecom
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 filed Critical France Telecom
Publication of MX2009004212A publication Critical patent/MX2009004212A/es

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
    • 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 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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • 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 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

La invención propone la síntesis de una señal constituida por bloques consecutivos. Propone, más particularmente, al ocurrir la recepción de dicha señal, reemplazar, por síntesis, los bloques perdidos o erróneos de dicha señal. Propone para tal efecto una atenuación de la superposición de voz durante la generación de una síntesis de señal. Más particularmente, se genera una excitación basada en el periodo de afinación (T) estimado o transmitido en el bloque precedente, aplicando eventualmente una corrección de más o de menos a una muestra de la duración de este periodo (contado en términos de cantidad de muestras), construyendo grupos (A', B', C', D') o al menos dos muestras, e invirtiendo las posiciones de las muestras en los grupos, aleatoriamente (B', C') o de manera forzada. De esta forma, se rompe la sobre-armonicidad en la excitación generada, y de esta forma, se atenúa el efecto de la superposición de voz en la síntesis de la señal generada.
MX2009004212A 2006-10-20 2007-10-17 Atenuacion de superposicion de voz, en particular para generar una excitacion en un decodificador, en ausencia de informacion. MX2009004212A (es)

Applications Claiming Priority (2)

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

Publications (1)

Publication Number Publication Date
MX2009004212A true MX2009004212A (es) 2009-07-02

Family

ID=38011219

Family Applications (1)

Application Number Title Priority Date Filing Date
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.

Country Status (11)

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

Families Citing this family (8)

* Cited by examiner, † Cited by third party
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
CN103928029B (zh) 2013-01-11 2017-02-08 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.
MY181026A (en) 2013-06-21 2020-12-16 Fraunhofer Ges Forschung Apparatus and method realizing improved concepts for tcx ltp
PL3336840T3 (pl) 2013-10-31 2020-04-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Dekoder audio i sposób dostarczania zdekodowanej informacji audio z wykorzystaniem maskowania błędów modyfikującego sygnał pobudzenia w dziedzinie czasu
PT3285255T (pt) 2013-10-31 2019-08-02 Fraunhofer Ges Forschung Descodificador de 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 (en) * 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Harmonicity-dependent controlling of a harmonic filter tool

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE69419515T2 (de) * 1994-11-10 2000-01-20 Ericsson Telefon Ab L M Verfahren und Einrichtung zur Tonwiederherstellung während Auslöschungen
GB2360178B (en) * 2000-03-06 2004-04-14 Mitel Corp Sub-packet insertion for packet loss compensation in Voice Over IP networks
FR2813722B1 (fr) * 2000-09-05 2003-01-24 France Telecom Procede et dispositif de dissimulation d'erreurs et systeme de transmission comportant un tel dispositif
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
RU2405217C2 (ru) * 2005-01-31 2010-11-27 Скайп Лимитед Способ взвешенного сложения с перекрытием
US7930176B2 (en) * 2005-05-20 2011-04-19 Broadcom Corporation Packet loss concealment for block-independent speech codecs
US7805297B2 (en) * 2005-11-23 2010-09-28 Broadcom Corporation Classification-based frame loss concealment for audio signals
US8255207B2 (en) * 2005-12-28 2012-08-28 Voiceage Corporation Method and device for efficient frame erasure concealment in speech codecs

Also Published As

Publication number Publication date
ATE536613T1 (de) 2011-12-15
BRPI0718423B1 (pt) 2020-03-10
RU2009118918A (ru) 2010-11-27
CN101573751B (zh) 2013-09-25
BRPI0718423A2 (pt) 2013-11-12
US8417520B2 (en) 2013-04-09
JP2010507120A (ja) 2010-03-04
US20100324907A1 (en) 2010-12-23
JP5289319B2 (ja) 2013-09-11
KR101409305B1 (ko) 2014-06-18
EP2080194A2 (fr) 2009-07-22
KR20090090312A (ko) 2009-08-25
WO2008047051A2 (fr) 2008-04-24
EP2080194B1 (fr) 2011-12-07
RU2437170C2 (ru) 2011-12-20
WO2008047051A3 (fr) 2008-06-12
CN101573751A (zh) 2009-11-04
ES2378972T3 (es) 2012-04-19

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