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MXPA05007356A - Metodo para codificar y descodificar audio a una velocidad variable. - Google Patents

Metodo para codificar y descodificar audio a una velocidad variable.

Info

Publication number
MXPA05007356A
MXPA05007356A MXPA05007356A MXPA05007356A MXPA05007356A MX PA05007356 A MXPA05007356 A MX PA05007356A MX PA05007356 A MXPA05007356 A MX PA05007356A MX PA05007356 A MXPA05007356 A MX PA05007356A MX PA05007356 A MXPA05007356 A MX PA05007356A
Authority
MX
Mexico
Prior art keywords
encoding
parameters
bits
sub
nmax
Prior art date
Application number
MXPA05007356A
Other languages
English (en)
Inventor
Massaloux Dominique
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 MXPA05007356A publication Critical patent/MXPA05007356A/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
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • 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
    • G10L19/002—Dynamic bit allocation
    • 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
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes

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)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

Un maximo de Nmax bits de codificacion es definido para una serie de parametros que pueden ser calculados a partir de un marco de senal. Los parametros para una primera subserie se calculan y codifican con N0 bits, donde N0 < Nmax. Se determina la asignacion de Nmax - N0 bits codificadores para los parametros de una segunda subserie, y se clasifican los bits codificadores asignados a los parametros para la segunda subserie. La asignacion y/o el orden de clasificacion de los bits de codificacion se determinan como una funcion de los parametros codificadores para la primera subserie. Para un total de N bits disponibles para la codificacion del total de parametros (N0 < N ( Nmax), se seleccionan los parametros para la segunda subserie asignados a los N - N0 bits codificadores clasificados como primeros en dicho orden. Los parametros seleccionados son calculados y codificados para dar los N - N0 bits. Los N0 bits codificadores para la primera subserie y los N - N0 bits codificadores para los parametros seleccionados para la segunda subserie son introducidos finalmente en la secuencia de salida del codificador.
MXPA05007356A 2003-01-08 2003-12-22 Metodo para codificar y descodificar audio a una velocidad variable. MXPA05007356A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0300164A FR2849727B1 (fr) 2003-01-08 2003-01-08 Procede de codage et de decodage audio a debit variable
PCT/FR2003/003870 WO2004070706A1 (fr) 2003-01-08 2003-12-22 Procede de codage et de decodage audio a debit variable

Publications (1)

Publication Number Publication Date
MXPA05007356A true MXPA05007356A (es) 2005-09-30

Family

ID=32524763

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA05007356A MXPA05007356A (es) 2003-01-08 2003-12-22 Metodo para codificar y descodificar audio a una velocidad variable.

Country Status (15)

Country Link
US (1) US7457742B2 (es)
EP (1) EP1581930B1 (es)
JP (1) JP4390208B2 (es)
KR (1) KR101061404B1 (es)
CN (1) CN1735928B (es)
AT (1) ATE388466T1 (es)
AU (1) AU2003299395B2 (es)
BR (1) BR0317954A (es)
CA (1) CA2512179C (es)
DE (1) DE60319590T2 (es)
ES (1) ES2302530T3 (es)
FR (1) FR2849727B1 (es)
MX (1) MXPA05007356A (es)
WO (1) WO2004070706A1 (es)
ZA (1) ZA200505257B (es)

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US7921007B2 (en) * 2004-08-17 2011-04-05 Koninklijke Philips Electronics N.V. Scalable audio coding
JP4859670B2 (ja) * 2004-10-27 2012-01-25 パナソニック株式会社 音声符号化装置および音声符号化方法
KR100647336B1 (ko) 2005-11-08 2006-11-23 삼성전자주식회사 적응적 시간/주파수 기반 오디오 부호화/복호화 장치 및방법
US8370138B2 (en) * 2006-03-17 2013-02-05 Panasonic Corporation Scalable encoding device and scalable encoding method including quality improvement of a decoded signal
US7930173B2 (en) 2006-06-19 2011-04-19 Sharp Kabushiki Kaisha Signal processing method, signal processing apparatus and recording medium
JP4827661B2 (ja) * 2006-08-30 2011-11-30 富士通株式会社 信号処理方法及び装置
US20080243518A1 (en) * 2006-11-16 2008-10-02 Alexey Oraevsky System And Method For Compressing And Reconstructing Audio Files
EP1927981B1 (en) * 2006-12-01 2013-02-20 Nuance Communications, Inc. Spectral refinement of audio signals
JP4871894B2 (ja) * 2007-03-02 2012-02-08 パナソニック株式会社 符号化装置、復号装置、符号化方法および復号方法
JP4708446B2 (ja) * 2007-03-02 2011-06-22 パナソニック株式会社 符号化装置、復号装置およびそれらの方法
US7925783B2 (en) * 2007-05-23 2011-04-12 Microsoft Corporation Transparent envelope for XML messages
KR101290622B1 (ko) * 2007-11-02 2013-07-29 후아웨이 테크놀러지 컴퍼니 리미티드 오디오 복호화 방법 및 장치
JP5520967B2 (ja) * 2009-02-16 2014-06-11 エレクトロニクス アンド テレコミュニケーションズ リサーチ インスチチュート 適応的正弦波コーディングを用いるオーディオ信号の符号化及び復号化方法及び装置
EP2249333B1 (en) * 2009-05-06 2014-08-27 Nuance Communications, Inc. Method and apparatus for estimating a fundamental frequency of a speech signal
FR2947944A1 (fr) * 2009-07-07 2011-01-14 France Telecom Codage/decodage perfectionne de signaux audionumeriques
FR2947945A1 (fr) * 2009-07-07 2011-01-14 France Telecom Allocation de bits dans un codage/decodage d'amelioration d'un codage/decodage hierarchique de signaux audionumeriques
EP2490216B1 (en) * 2009-10-14 2019-04-24 III Holdings 12, LLC Layered speech coding
US20120029926A1 (en) 2010-07-30 2012-02-02 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for dependent-mode coding of audio signals
US9208792B2 (en) 2010-08-17 2015-12-08 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for noise injection
CN101950562A (zh) * 2010-11-03 2011-01-19 武汉大学 基于音频关注度的分级编码方法及系统
NO2669468T3 (es) * 2011-05-11 2018-06-02
TWI606441B (zh) * 2011-05-13 2017-11-21 三星電子股份有限公司 解碼裝置
WO2013142650A1 (en) 2012-03-23 2013-09-26 Dolby International Ab Enabling sampling rate diversity in a voice communication system
ES2827278T3 (es) 2014-04-17 2021-05-20 Voiceage Corp Método, dispositivo y memoria no transitoria legible por ordenador para codificación y decodificación predictiva linealde señales sonoras en la transición entre tramas que tienen diferentes tasas de muestreo
CN106992786B (zh) * 2017-03-21 2020-07-07 深圳三星通信技术研究有限公司 一种基带数据压缩方法、装置和系统
KR102258814B1 (ko) * 2018-10-04 2021-07-14 주식회사 엘지에너지솔루션 Bms 간 통신 시스템 및 방법
KR102352240B1 (ko) * 2020-02-14 2022-01-17 국방과학연구소 Amr 음성데이터의 압축포맷정보를 추정하는 방법 및 그 장치

Family Cites Families (5)

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GB8421498D0 (en) * 1984-08-24 1984-09-26 British Telecomm Frequency domain speech coding
DE19706516C1 (de) * 1997-02-19 1998-01-15 Fraunhofer Ges Forschung Verfahren und Vorricntungen zum Codieren von diskreten Signalen bzw. zum Decodieren von codierten diskreten Signalen
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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
US7620545B2 (en) * 2003-07-08 2009-11-17 Industrial Technology Research Institute Scale factor based bit shifting in fine granularity scalability audio coding

Also Published As

Publication number Publication date
CA2512179C (fr) 2013-04-16
US20060036435A1 (en) 2006-02-16
CN1735928B (zh) 2010-05-12
CA2512179A1 (fr) 2004-08-19
ZA200505257B (en) 2006-09-27
ES2302530T3 (es) 2008-07-16
US7457742B2 (en) 2008-11-25
DE60319590D1 (de) 2008-04-17
FR2849727B1 (fr) 2005-03-18
BR0317954A (pt) 2005-11-29
AU2003299395A1 (en) 2004-08-30
CN1735928A (zh) 2006-02-15
JP4390208B2 (ja) 2009-12-24
KR20050092107A (ko) 2005-09-20
EP1581930A1 (fr) 2005-10-05
ATE388466T1 (de) 2008-03-15
JP2006513457A (ja) 2006-04-20
WO2004070706A1 (fr) 2004-08-19
DE60319590T2 (de) 2009-03-26
EP1581930B1 (fr) 2008-03-05
AU2003299395B2 (en) 2010-03-04
FR2849727A1 (fr) 2004-07-09
KR101061404B1 (ko) 2011-09-01

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