AR072481A1 - Un aparato y un metodo para decodificar una senal de audio codificada - Google Patents

Un aparato y un metodo para decodificar una senal de audio codificada

Info

Publication number
AR072481A1
AR072481A1 ARP090102547A ARP090102547A AR072481A1 AR 072481 A1 AR072481 A1 AR 072481A1 AR P090102547 A ARP090102547 A AR P090102547A AR P090102547 A ARP090102547 A AR P090102547A AR 072481 A1 AR072481 A1 AR 072481A1
Authority
AR
Argentina
Prior art keywords
algorithm
decoding
encoded
signal
audio signal
Prior art date
Application number
ARP090102547A
Other languages
English (en)
Original Assignee
Fraunhofer Ges Forschung
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 Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of AR072481A1 publication Critical patent/AR072481A1/es

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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
    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband 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
    • 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
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/04—Time compression or expansion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • 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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0212—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 spectral analysis, e.g. transform vocoders or subband vocoders using orthogonal transformation
    • 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring

Landscapes

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

Abstract

Un aparato para decodificar (100) una senal de audio codificada (102), la senal de audio codificada (102) comprende una primera porcion (104a) codificada de acuerdo con un primer algoritmo de codificacion, una segunda porcion (104b) codificada de acuerdo con un segundo algoritmo de codificacion, parámetros BWE (106) para la primera porcion (104a) y la segunda porcion (104b) y una informacion del modo de codificacion (108) que indica un primer algoritmo de decodificacion o un segundo algoritmo de decodificacion, que comprende: un primer decodificador (110a) decodifica la primera porcion (104a) de acuerdo con el primer algoritmo de decodificacion para una primera porcion de tiempo de la senal codificada (102) para obtener una primera senal decodificada (114a); el segundo decodificador (110b) decodifica la segunda porcion (104b) de acuerdo con el segundo algoritmo de decodificacion para una segunda porcion de tiempo de la senal codificada (102) para obtener una segunda senal decodificada (114b); el modulo BWE (130) posee una frecuencia de cruce (fx) controlable, el modulo BWE (130) configurado para desarrollar un algoritmo de ampliacion de ancho de banda utilizando la primera senal decodificada (114a) y los parámetros BWE (106) para la primera porcion (104a), y para desarrollar un algoritmo de ampliacion de ancho de banda utilizando la segunda senal decodificada (114b) y el parámetro de ampliacion de ancho de banda (106) para la segunda porcion (104b). El controlador (140) controlar la frecuencia de cruce (fx) para el modulo BWE (130) de acuerdo con la informacion del modo de codificacion (108).
ARP090102547A 2008-07-11 2009-07-07 Un aparato y un metodo para decodificar una senal de audio codificada AR072481A1 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US7984108P 2008-07-11 2008-07-11
US10382008P 2008-10-08 2008-10-08
PCT/EP2009/004522 WO2010003545A1 (en) 2008-07-11 2009-06-23 An apparatus and a method for decoding an encoded audio signal

Publications (1)

Publication Number Publication Date
AR072481A1 true AR072481A1 (es) 2010-09-01

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Application Number Title Priority Date Filing Date
ARP090102547A AR072481A1 (es) 2008-07-11 2009-07-07 Un aparato y un metodo para decodificar una senal de audio codificada

Country Status (19)

Country Link
US (1) US8275626B2 (es)
EP (2) EP2352147B9 (es)
JP (1) JP5325293B2 (es)
KR (1) KR101224560B1 (es)
CN (1) CN102089814B (es)
AR (1) AR072481A1 (es)
AU (1) AU2009267531B2 (es)
BR (1) BRPI0910511B1 (es)
CA (1) CA2730232C (es)
CO (1) CO6341674A2 (es)
ES (2) ES2396927T3 (es)
HK (2) HK1154432A1 (es)
IL (1) IL210414A (es)
MX (1) MX2011000370A (es)
PL (2) PL2304723T3 (es)
RU (1) RU2483366C2 (es)
TW (1) TWI435316B (es)
WO (1) WO2010003545A1 (es)
ZA (1) ZA201100087B (es)

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101403340B1 (ko) * 2007-08-02 2014-06-09 삼성전자주식회사 변환 부호화 방법 및 장치
EP2198426A4 (en) * 2007-10-15 2012-01-18 Lg Electronics Inc METHOD AND DEVICE FOR PROCESSING A SIGNAL
EP2077551B1 (en) * 2008-01-04 2011-03-02 Dolby Sweden AB Audio encoder and decoder
MY152252A (en) * 2008-07-11 2014-09-15 Fraunhofer Ges Forschung Apparatus and method for encoding/decoding an audio signal using an aliasing switch scheme
EP2144230A1 (en) 2008-07-11 2010-01-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Low bitrate audio encoding/decoding scheme having cascaded switches
US8442837B2 (en) * 2009-12-31 2013-05-14 Motorola Mobility Llc Embedded speech and audio coding using a switchable model core
BR122021003688B1 (pt) 2010-08-12 2021-08-24 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E. V. Reamostrar sinais de saída de codecs de áudio com base em qmf
JP5743137B2 (ja) * 2011-01-14 2015-07-01 ソニー株式会社 信号処理装置および方法、並びにプログラム
CN102610231B (zh) * 2011-01-24 2013-10-09 华为技术有限公司 一种带宽扩展方法及装置
MX2013010537A (es) 2011-03-18 2014-03-21 Koninkl Philips Nv Codificador y decodificador de audio con funcionalidad de configuracion.
RU2725416C1 (ru) * 2012-03-29 2020-07-02 Телефонактиеболагет Лм Эрикссон (Пабл) Расширение полосы частот гармонического аудиосигнала
GB201210373D0 (en) * 2012-06-12 2012-07-25 Meridian Audio Ltd Doubly compatible lossless audio sandwidth extension
EP2688066A1 (en) * 2012-07-16 2014-01-22 Thomson Licensing Method and apparatus for encoding multi-channel HOA audio signals for noise reduction, and method and apparatus for decoding multi-channel HOA audio signals for noise reduction
US9129600B2 (en) 2012-09-26 2015-09-08 Google Technology Holdings LLC Method and apparatus for encoding an audio signal
JPWO2014068817A1 (ja) * 2012-10-31 2016-09-08 株式会社ソシオネクスト オーディオ信号符号化装置及びオーディオ信号復号装置
ES2790733T3 (es) * 2013-01-29 2020-10-29 Fraunhofer Ges Forschung Codificadores de audio, decodificadores de audio, sistemas, métodos y programas informáticos que utilizan una resolución temporal aumentada en la proximidad temporal de inicios o finales de fricativos o africados
RU2676242C1 (ru) * 2013-01-29 2018-12-26 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Декодер для формирования аудиосигнала с улучшенной частотной характеристикой, способ декодирования, кодер для формирования кодированного сигнала и способ кодирования с использованием компактной дополнительной информации для выбора
ES2768179T3 (es) * 2013-01-29 2020-06-22 Fraunhofer Ges Forschung Codificador de audio, decodificador de audio, método para proporcionar una información de audio codificada, método para proporcionar una información de audio decodificada, programa informático y representación codificada utilizando una ampliación de ancho de banda adaptada a la señal
ES2626809T3 (es) * 2013-01-29 2017-07-26 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. Concepto para compensación de conmutación del modo de codificación
CN117253498A (zh) * 2013-04-05 2023-12-19 杜比国际公司 音频信号的解码方法和解码器、介质以及编码方法
TWI546799B (zh) 2013-04-05 2016-08-21 杜比國際公司 音頻編碼器及解碼器
US20160064004A1 (en) * 2013-04-15 2016-03-03 Nokia Technologies Oy Multiple channel audio signal encoder mode determiner
US9426569B2 (en) 2013-06-13 2016-08-23 Blackberry Limited Audio signal bandwidth to codec bandwidth analysis and response
KR101953613B1 (ko) 2013-06-21 2019-03-04 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 지터 버퍼 제어부, 오디오 디코더, 방법 및 컴퓨터 프로그램
CN105474313B (zh) 2013-06-21 2019-09-06 弗劳恩霍夫应用研究促进协会 时间缩放器、音频解码器、方法和计算机可读存储介质
US9666202B2 (en) 2013-09-10 2017-05-30 Huawei Technologies Co., Ltd. Adaptive bandwidth extension and apparatus for the same
CN104517610B (zh) 2013-09-26 2018-03-06 华为技术有限公司 频带扩展的方法及装置
US9620134B2 (en) * 2013-10-10 2017-04-11 Qualcomm Incorporated Gain shape estimation for improved tracking of high-band temporal characteristics
FR3013496A1 (fr) * 2013-11-15 2015-05-22 Orange Transition d'un codage/decodage par transformee vers un codage/decodage predictif
US9293143B2 (en) 2013-12-11 2016-03-22 Qualcomm Incorporated Bandwidth extension mode selection
KR101841380B1 (ko) * 2014-01-13 2018-03-22 노키아 테크놀로지스 오와이 다중-채널 오디오 신호 분류기
KR102354331B1 (ko) * 2014-02-24 2022-01-21 삼성전자주식회사 신호 분류 방법 및 장치, 및 이를 이용한 오디오 부호화방법 및 장치
US9685164B2 (en) * 2014-03-31 2017-06-20 Qualcomm Incorporated Systems and methods of switching coding technologies at a device
FR3020732A1 (fr) * 2014-04-30 2015-11-06 Orange Correction de perte de trame perfectionnee avec information de voisement
US9685166B2 (en) 2014-07-26 2017-06-20 Huawei Technologies Co., Ltd. Classification between time-domain coding and frequency domain coding
CN106448688B (zh) * 2014-07-28 2019-11-05 华为技术有限公司 音频编码方法及相关装置
EP2980797A1 (en) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio decoder, method and computer program using a zero-input-response to obtain a smooth transition
EP2980794A1 (en) * 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder and decoder using a frequency domain processor and a time domain processor
EP3000110B1 (en) 2014-07-28 2016-12-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Selection of one of a first encoding algorithm and a second encoding algorithm using harmonics reduction
EP3067887A1 (en) 2015-03-09 2016-09-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder for encoding a multichannel signal and audio decoder for decoding an encoded audio signal
US10847170B2 (en) 2015-06-18 2020-11-24 Qualcomm Incorporated Device and method for generating a high-band signal from non-linearly processed sub-ranges
US9837089B2 (en) * 2015-06-18 2017-12-05 Qualcomm Incorporated High-band signal generation
KR20180040716A (ko) * 2015-09-04 2018-04-20 삼성전자주식회사 음질 향상을 위한 신호 처리방법 및 장치
BR112017024480A2 (pt) * 2016-02-17 2018-07-24 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E. V. pós-processador, pré-processador, codificador de áudio, decodificador de áudio e métodos relacionados para aprimoramento do processamento transiente
EP3208800A1 (en) 2016-02-17 2017-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for stereo filing in multichannel coding
US10157621B2 (en) * 2016-03-18 2018-12-18 Qualcomm Incorporated Audio signal decoding
GB201620317D0 (en) * 2016-11-30 2017-01-11 Microsoft Technology Licensing Llc Audio signal processing
US10734001B2 (en) * 2017-10-05 2020-08-04 Qualcomm Incorporated Encoding or decoding of audio signals
US10733318B2 (en) * 2017-11-21 2020-08-04 International Business Machines Corporation Processing analytical queries over encrypted data using dynamical decryption
KR102570480B1 (ko) * 2019-01-04 2023-08-25 삼성전자주식회사 오디오 신호 처리 방법 및 이를 지원하는 전자 장치
JP7092047B2 (ja) * 2019-01-17 2022-06-28 日本電信電話株式会社 符号化復号方法、復号方法、これらの装置及びプログラム
CN111554312A (zh) * 2020-05-15 2020-08-18 西安万像电子科技有限公司 控制音频编码类型的方法、装置和系统

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6134518A (en) * 1997-03-04 2000-10-17 International Business Machines Corporation Digital audio signal coding using a CELP coder and a transform coder
SE9903553D0 (sv) * 1999-01-27 1999-10-01 Lars Liljeryd Enhancing percepptual performance of SBR and related coding methods by adaptive noise addition (ANA) and noise substitution limiting (NSL)
US6618701B2 (en) 1999-04-19 2003-09-09 Motorola, Inc. Method and system for noise suppression using external voice activity detection
US6978236B1 (en) 1999-10-01 2005-12-20 Coding Technologies Ab Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching
US6901362B1 (en) * 2000-04-19 2005-05-31 Microsoft Corporation Audio segmentation and classification
SE0001926D0 (sv) * 2000-05-23 2000-05-23 Lars Liljeryd Improved spectral translation/folding in the subband domain
SE0004187D0 (sv) 2000-11-15 2000-11-15 Coding Technologies Sweden Ab Enhancing the performance of coding systems that use high frequency reconstruction methods
US6658383B2 (en) * 2001-06-26 2003-12-02 Microsoft Corporation Method for coding speech and music signals
EP1423847B1 (en) * 2001-11-29 2005-02-02 Coding Technologies AB Reconstruction of high frequency components
WO2004034379A2 (en) * 2002-10-11 2004-04-22 Nokia Corporation Methods and devices for source controlled variable bit-rate wideband speech coding
JP4048956B2 (ja) * 2003-01-20 2008-02-20 ティアック株式会社 光ディスク装置
SE0301901L (sv) 2003-06-26 2004-12-27 Abb Research Ltd Metod för att diagnostisera utrustningsstatus
DE602004030594D1 (de) 2003-10-07 2011-01-27 Panasonic Corp Verfahren zur entscheidung der zeitgrenze zur codierung der spektro-hülle und frequenzauflösung
CA2457988A1 (en) * 2004-02-18 2005-08-18 Voiceage Corporation Methods and devices for audio compression based on acelp/tcx coding and multi-rate lattice vector quantization
EP1769475B1 (en) 2004-06-28 2010-05-05 Abb Research Ltd. System and method for suppressing redundant alarms
US7676043B1 (en) * 2005-02-28 2010-03-09 Texas Instruments Incorporated Audio bandwidth expansion
KR100803205B1 (ko) * 2005-07-15 2008-02-14 삼성전자주식회사 저비트율 오디오 신호 부호화/복호화 방법 및 장치
CN101273404B (zh) * 2005-09-30 2012-07-04 松下电器产业株式会社 语音编码装置以及语音编码方法
KR100647336B1 (ko) * 2005-11-08 2006-11-23 삼성전자주식회사 적응적 시간/주파수 기반 오디오 부호화/복호화 장치 및방법
US7546237B2 (en) * 2005-12-23 2009-06-09 Qnx Software Systems (Wavemakers), Inc. Bandwidth extension of narrowband speech
US8260620B2 (en) * 2006-02-14 2012-09-04 France Telecom Device for perceptual weighting in audio encoding/decoding
EP1852849A1 (en) * 2006-05-05 2007-11-07 Deutsche Thomson-Brandt Gmbh Method and apparatus for lossless encoding of a source signal, using a lossy encoded data stream and a lossless extension data stream
US8214202B2 (en) * 2006-09-13 2012-07-03 Telefonaktiebolaget L M Ericsson (Publ) Methods and arrangements for a speech/audio sender and receiver
US8417532B2 (en) * 2006-10-18 2013-04-09 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Encoding an information signal
FR2912249A1 (fr) * 2007-02-02 2008-08-08 France Telecom Codage/decodage perfectionnes de signaux audionumeriques.
JP5618826B2 (ja) * 2007-06-14 2014-11-05 ヴォイスエイジ・コーポレーション Ｉｔｕ．ｔ勧告ｇ．７１１と相互運用可能なｐｃｍコーデックにおいてフレーム消失を補償する装置および方法
EP2198426A4 (en) * 2007-10-15 2012-01-18 Lg Electronics Inc METHOD AND DEVICE FOR PROCESSING A SIGNAL
KR101373004B1 (ko) * 2007-10-30 2014-03-26 삼성전자주식회사 고주파수 신호 부호화 및 복호화 장치 및 방법
WO2009081315A1 (en) * 2007-12-18 2009-07-02 Koninklijke Philips Electronics N.V. Encoding and decoding audio or speech
EP2077551B1 (en) * 2008-01-04 2011-03-02 Dolby Sweden AB Audio encoder and decoder
EP2259253B1 (en) * 2008-03-03 2017-11-15 LG Electronics Inc. Method and apparatus for processing audio signal
CA2717584C (en) * 2008-03-04 2015-05-12 Lg Electronics Inc. Method and apparatus for processing an audio signal
EP2144231A1 (en) * 2008-07-11 2010-01-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Low bitrate audio encoding/decoding scheme with common preprocessing

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AU2009267531A1 (en) 2010-01-14
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RU2483366C2 (ru) 2013-05-27
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