[go: up one dir, main page]

ES2558229T3 - Codificador y decodificador de audio para codificar tramas de señales de audio muestreadas - Google Patents

Codificador y decodificador de audio para codificar tramas de señales de audio muestreadas Download PDF

Info

Publication number
ES2558229T3
ES2558229T3 ES09777044.0T ES09777044T ES2558229T3 ES 2558229 T3 ES2558229 T3 ES 2558229T3 ES 09777044 T ES09777044 T ES 09777044T ES 2558229 T3 ES2558229 T3 ES 2558229T3
Authority
ES
Spain
Prior art keywords
information
frame
domain
coefficients
spectrum
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
ES09777044.0T
Other languages
English (en)
Inventor
Jérémie Lecomte
Philippe Gournay
Stefan Bayer
Markus Multrus
Nikolaus Rettelbach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VoiceAge Corp
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
VoiceAge Corp
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 VoiceAge Corp, Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical VoiceAge Corp
Application granted granted Critical
Publication of ES2558229T3 publication Critical patent/ES2558229T3/es
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • 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

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

Un codificador de audio (100) adaptado para codificar tramas de una señal de audio muestreada para obtener tramas codificadas, en el que una trama comprende un número de muestras de audio del dominio del tiempo, que comprende: una etapa de análisis de codificación predictiva (110) para determinar información sobre los coeficientes de un filtro de síntesis e información sobre una trama de dominio de predicción basándose en una trama de muestras de audio; un transformador del dominio de la frecuencia (120) para transformar una trama de muestras de audio al dominio de la frecuencia para obtener un espectro de tramas; un tomador de decisiones del dominio de codificación (130) para decidir si los datos codificados para una trama están basados en la información sobre los coeficientes y en la información sobre la trama de dominio de predicción, o están basados en el espectro de tramas; un controlador (140) para determinar la información sobre un coeficiente de conmutación cuando el tomador de decisiones del dominio de codificación decide que los datos codificados de una trama actual están basados en la información sobre los coeficientes y la información sobre la trama de dominio de predicción cuando los datos codificados de una trama previa se codificaron basándose en un espectro de tramas previo obtenido mediante el transformador del dominio de la frecuencia; y un codificador reductor de la redundancia (150) para codificar la información sobre la trama de dominio de predicción, la información sobre los coeficientes, la información sobre el coeficiente de conmutación y/o el espectro de tramas, en el que la información sobre los coeficientes de conmutación comprende una información que posibilita una iniciación de una etapa de síntesis predictiva, y el controlador (140) está adaptado para determinar la información sobre el coeficiente de conmutación basándose en una versión filtrada de paso alto de un espectro de trama decodificado de la trama previa.

Description

imagen1
imagen2
imagen3
imagen4
imagen5
imagen6
imagen7
imagen8
imagen9
imagen10
imagen11

Claims (1)

  1. imagen1
    imagen2
ES09777044.0T 2008-07-11 2009-07-08 Codificador y decodificador de audio para codificar tramas de señales de audio muestreadas Active ES2558229T3 (es)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US79851 1979-09-28
US7985108P 2008-07-11 2008-07-11
US10382508P 2008-10-08 2008-10-08
US103825 2008-10-08
PCT/EP2009/004947 WO2010003663A1 (en) 2008-07-11 2009-07-08 Audio encoder and decoder for encoding frames of sampled audio signals

Publications (1)

Publication Number Publication Date
ES2558229T3 true ES2558229T3 (es) 2016-02-02

Family

ID=41110884

Family Applications (1)

Application Number Title Priority Date Filing Date
ES09777044.0T Active ES2558229T3 (es) 2008-07-11 2009-07-08 Codificador y decodificador de audio para codificar tramas de señales de audio muestreadas

Country Status (19)

Country Link
US (1) US8751246B2 (es)
EP (1) EP2311034B1 (es)
JP (1) JP5369180B2 (es)
KR (1) KR101227729B1 (es)
CN (1) CN102105930B (es)
AR (1) AR072556A1 (es)
AU (1) AU2009267394B2 (es)
BR (3) BR122021009252B1 (es)
CA (1) CA2730315C (es)
CO (1) CO6351832A2 (es)
ES (1) ES2558229T3 (es)
HK (1) HK1157489A1 (es)
MX (1) MX2011000369A (es)
MY (1) MY156654A (es)
PL (1) PL2311034T3 (es)
RU (1) RU2498419C2 (es)
TW (1) TWI441168B (es)
WO (1) WO2010003663A1 (es)
ZA (1) ZA201100090B (es)

Families Citing this family (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7461106B2 (en) 2006-09-12 2008-12-02 Motorola, Inc. Apparatus and method for low complexity combinatorial coding of signals
US8576096B2 (en) 2007-10-11 2013-11-05 Motorola Mobility Llc Apparatus and method for low complexity combinatorial coding of signals
US8209190B2 (en) 2007-10-25 2012-06-26 Motorola Mobility, Inc. Method and apparatus for generating an enhancement layer within an audio coding system
US8639519B2 (en) 2008-04-09 2014-01-28 Motorola Mobility Llc Method and apparatus for selective signal coding based on core encoder performance
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
MY181247A (en) * 2008-07-11 2020-12-21 Frauenhofer Ges Zur Forderung Der Angenwandten Forschung E V Audio encoder and decoder for encoding and decoding audio samples
MX2011000375A (es) * 2008-07-11 2011-05-19 Fraunhofer Ges Forschung Codificador y decodificador de audio para codificar y decodificar tramas de una señal de audio muestreada.
CN102089812B (zh) * 2008-07-11 2013-03-20 弗劳恩霍夫应用研究促进协会 用以使用混叠切换方案将音频信号编码/解码的装置与方法
WO2010044593A2 (ko) 2008-10-13 2010-04-22 한국전자통신연구원 Mdct 기반 음성/오디오 통합 부호화기의 lpc 잔차신호 부호화/복호화 장치
KR101649376B1 (ko) 2008-10-13 2016-08-31 한국전자통신연구원 Ｍｄｃｔ 기반 음성/오디오 통합 부호화기의 ｌｐｃ 잔차신호 부호화/복호화 장치
US9384748B2 (en) * 2008-11-26 2016-07-05 Electronics And Telecommunications Research Institute Unified Speech/Audio Codec (USAC) processing windows sequence based mode switching
US8219408B2 (en) 2008-12-29 2012-07-10 Motorola Mobility, Inc. Audio signal decoder and method for producing a scaled reconstructed audio signal
US8175888B2 (en) 2008-12-29 2012-05-08 Motorola Mobility, Inc. Enhanced layered gain factor balancing within a multiple-channel audio coding system
US8140342B2 (en) 2008-12-29 2012-03-20 Motorola Mobility, Inc. Selective scaling mask computation based on peak detection
US8200496B2 (en) 2008-12-29 2012-06-12 Motorola Mobility, Inc. Audio signal decoder and method for producing a scaled reconstructed audio signal
KR101622950B1 (ko) * 2009-01-28 2016-05-23 삼성전자주식회사 오디오 신호의 부호화 및 복호화 방법 및 그 장치
JP4977268B2 (ja) * 2011-12-06 2012-07-18 株式会社エヌ・ティ・ティ・ドコモ 音信号符号化方法、音信号復号方法、符号化装置、復号装置、音信号処理システム、音信号符号化プログラム、及び、音信号復号プログラム
JP4977157B2 (ja) 2009-03-06 2012-07-18 株式会社エヌ・ティ・ティ・ドコモ 音信号符号化方法、音信号復号方法、符号化装置、復号装置、音信号処理システム、音信号符号化プログラム、及び、音信号復号プログラム
US8423355B2 (en) 2010-03-05 2013-04-16 Motorola Mobility Llc Encoder for audio signal including generic audio and speech frames
US8428936B2 (en) * 2010-03-05 2013-04-23 Motorola Mobility Llc Decoder for audio signal including generic audio and speech frames
EP2581902A4 (en) 2010-06-14 2015-04-08 Panasonic Corp AUDIOHYBRID ENCODER AND AUDIOHYBRIDE DECODING DEVICE
EP2466580A1 (en) 2010-12-14 2012-06-20 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Encoder and method for predictively encoding, decoder and method for decoding, system and method for predictively encoding and decoding and predictively encoded information signal
FR2969805A1 (fr) * 2010-12-23 2012-06-29 France Telecom Codage bas retard alternant codage predictif et codage par transformee
TWI480857B (zh) 2011-02-14 2015-04-11 Fraunhofer Ges Forschung 在不活動階段期間利用雜訊合成之音訊編解碼器
MX2013009306A (es) * 2011-02-14 2013-09-26 Fraunhofer Ges Forschung Aparato y metodo para codificar y decodificar una señal de audio utilizando una porcion alineada anticipada.
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
US9037456B2 (en) * 2011-07-26 2015-05-19 Google Technology Holdings LLC Method and apparatus for audio coding and decoding
EP2772914A4 (en) * 2011-10-28 2015-07-15 Panasonic Corp DECODER FOR HYBRID SOUND SIGNALS, COORDINATORS FOR HYBRID SOUND SIGNALS, DECODING PROCEDURE FOR SOUND SIGNALS AND CODING SIGNALING PROCESSES
CA2851370C (en) * 2011-11-03 2019-12-03 Voiceage Corporation Improving non-speech content for low rate celp decoder
US9043201B2 (en) 2012-01-03 2015-05-26 Google Technology Holdings LLC Method and apparatus for processing audio frames to transition between different codecs
EP2862165B1 (en) 2012-06-14 2017-03-08 Dolby International AB Smooth configuration switching for multichannel audio rendering based on a variable number of received channels
US9123328B2 (en) * 2012-09-26 2015-09-01 Google Technology Holdings LLC Apparatus and method for audio frame loss recovery
US9129600B2 (en) 2012-09-26 2015-09-08 Google Technology Holdings LLC Method and apparatus for encoding an audio signal
GB201219090D0 (en) * 2012-10-24 2012-12-05 Secr Defence Method an apparatus for processing a signal
CN109448745B (zh) * 2013-01-07 2021-09-07 中兴通讯股份有限公司 一种编码模式切换方法和装置、解码模式切换方法和装置
TR201908919T4 (tr) 2013-01-29 2019-07-22 Fraunhofer Ges Forschung Celp benzeri kodlayıcılar için yan bilgi olmadan gürültü doldurumu.
CN110047500B (zh) 2013-01-29 2023-09-05 弗劳恩霍夫应用研究促进协会 音频编码器、音频译码器及其方法
JP6175148B2 (ja) 2013-02-20 2017-08-02 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 マルチオーバーラップ部分を使用して符号化済み信号を生成し又は符号化済みオーディオ信号を復号化するための装置及び方法
FR3003682A1 (fr) * 2013-03-25 2014-09-26 France Telecom Mixage partiel optimise de flux audio codes selon un codage par sous-bandes
FR3003683A1 (fr) * 2013-03-25 2014-09-26 France Telecom Mixage optimise de flux audio codes selon un codage par sous-bandes
KR20140117931A (ko) 2013-03-27 2014-10-08 삼성전자주식회사 오디오 디코딩 장치 및 방법
EP2981897A4 (en) 2013-04-03 2016-11-16 Hewlett Packard Entpr Dev Lp DEACTIVATION OF FALSIFIED CARTRIDGES
TWI587290B (zh) 2013-06-21 2017-06-11 弗勞恩霍夫爾協會 用以生成舒緩雜訊適應性頻譜形狀的裝置及方法、以及相關電腦程式
US9666202B2 (en) 2013-09-10 2017-05-30 Huawei Technologies Co., Ltd. Adaptive bandwidth extension and apparatus for the same
FR3013496A1 (fr) * 2013-11-15 2015-05-22 Orange Transition d'un codage/decodage par transformee vers un codage/decodage predictif
CN104751849B (zh) 2013-12-31 2017-04-19 华为技术有限公司 语音频码流的解码方法及装置
CN107369453B (zh) 2014-03-21 2021-04-20 华为技术有限公司 语音频码流的解码方法及装置
US9685164B2 (en) 2014-03-31 2017-06-20 Qualcomm Incorporated Systems and methods of switching coding technologies at a device
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
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
EP2980796A1 (en) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method and apparatus for processing an audio signal, audio decoder, and audio encoder
EP2980795A1 (en) * 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoding and decoding using a frequency domain processor, a time domain processor and a cross processor for initialization of the time domain processor
FR3024582A1 (fr) * 2014-07-29 2016-02-05 Orange Gestion de la perte de trame dans un contexte de transition fd/lpd
FR3024581A1 (fr) * 2014-07-29 2016-02-05 Orange Determination d'un budget de codage d'une trame de transition lpd/fd
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
WO2016142002A1 (en) * 2015-03-09 2016-09-15 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, audio decoder, method for encoding an audio signal and method for decoding an encoded audio signal
CN106297813A (zh) * 2015-05-28 2017-01-04 杜比实验室特许公司 分离的音频分析和处理
WO2017050398A1 (en) * 2015-09-25 2017-03-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encoder, decoder and methods for signal-adaptive switching of the overlap ratio in audio transform coding
WO2017220528A1 (en) * 2016-06-22 2017-12-28 Dolby International Ab Audio decoder and method for transforming a digital audio signal from a first to a second frequency domain
EP3483886A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Selecting pitch lag
EP3483878A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio decoder supporting a set of different loss concealment tools
EP3483884A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Signal filtering
EP3483882A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Controlling bandwidth in encoders and/or decoders
EP3483883A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio coding and decoding with selective postfiltering
EP3483879A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Analysis/synthesis windowing function for modulated lapped transformation
WO2019091573A1 (en) 2017-11-10 2019-05-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for encoding and decoding an audio signal using downsampling or interpolation of scale parameters
WO2019091576A1 (en) 2017-11-10 2019-05-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoders, audio decoders, methods and computer programs adapting an encoding and decoding of least significant bits
EP3483880A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Temporal noise shaping
WO2020207593A1 (en) * 2019-04-11 2020-10-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio decoder, apparatus for determining a set of values defining characteristics of a filter, methods for providing a decoded audio representation, methods for determining a set of values defining characteristics of a filter and computer program
WO2020253941A1 (en) 2019-06-17 2020-12-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder with a signal-dependent number and precision control, audio decoder, and related methods and computer programs
US11437050B2 (en) * 2019-09-09 2022-09-06 Qualcomm Incorporated Artificial intelligence based audio coding
US11694692B2 (en) 2020-11-11 2023-07-04 Bank Of America Corporation Systems and methods for audio enhancement and conversion

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3943880B4 (de) * 1989-04-17 2008-07-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Digitales Codierverfahren
US5533052A (en) * 1993-10-15 1996-07-02 Comsat Corporation Adaptive predictive coding with transform domain quantization based on block size adaptation, backward adaptive power gain control, split bit-allocation and zero input response compensation
JPH09506478A (ja) * 1994-10-06 1997-06-24 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ 光放射半導体ダイオード及びこのようなダイオードの製造方法
JP2856185B2 (ja) 1997-01-21 1999-02-10 日本電気株式会社 音声符号化復号化システム
US6233550B1 (en) * 1997-08-29 2001-05-15 The Regents Of The University Of California Method and apparatus for hybrid coding of speech at 4kbps
ES2247741T3 (es) * 1998-01-22 2006-03-01 Deutsche Telekom Ag Metodo para conmutacion controlada por señales entre esquemas de codificacion de audio.
US6658383B2 (en) * 2001-06-26 2003-12-02 Microsoft Corporation Method for coding speech and music signals
US20050228648A1 (en) * 2002-04-22 2005-10-13 Ari Heikkinen Method and device for obtaining parameters for parametric speech coding of frames
US7424434B2 (en) * 2002-09-04 2008-09-09 Microsoft Corporation Unified lossy and lossless audio compression
US7328150B2 (en) * 2002-09-04 2008-02-05 Microsoft Corporation Innovations in pure lossless audio compression
US7876966B2 (en) * 2003-03-11 2011-01-25 Spyder Navigations L.L.C. Switching between coding schemes
ATE355590T1 (de) * 2003-04-17 2006-03-15 Koninkl Philips Electronics Nv Audiosignalsynthese
JP2005057591A (ja) * 2003-08-06 2005-03-03 Matsushita Electric Ind Co Ltd オーディオ信号符号化装置及びオーディオ信号復号化装置
US7325023B2 (en) * 2003-09-29 2008-01-29 Sony Corporation Method of making a window type decision based on MDCT data in audio encoding
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
US20070147518A1 (en) * 2005-02-18 2007-06-28 Bruno Bessette Methods and devices for low-frequency emphasis during audio compression based on ACELP/TCX
CN100561576C (zh) * 2005-10-25 2009-11-18 芯晟(北京)科技有限公司 一种基于量化信号域的立体声及多声道编解码方法与系统
KR20070077652A (ko) * 2006-01-24 2007-07-27 삼성전자주식회사 적응적 시간/주파수 기반 부호화 모드 결정 장치 및 이를위한 부호화 모드 결정 방법
CN101086845B (zh) * 2006-06-08 2011-06-01 北京天籁传音数字技术有限公司 声音编码装置及方法以及声音解码装置及方法
US7873511B2 (en) * 2006-06-30 2011-01-18 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic
CA2663904C (en) * 2006-10-10 2014-05-27 Qualcomm Incorporated Method and apparatus for encoding and decoding audio signals
KR101434198B1 (ko) * 2006-11-17 2014-08-26 삼성전자주식회사 신호 복호화 방법
ATE547898T1 (de) * 2006-12-12 2012-03-15 Fraunhofer Ges Forschung Kodierer, dekodierer und verfahren zur kodierung und dekodierung von datensegmenten zur darstellung eines zeitdomänen-datenstroms
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
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
MX2011000375A (es) * 2008-07-11 2011-05-19 Fraunhofer Ges Forschung Codificador y decodificador de audio para codificar y decodificar tramas de una señal de audio muestreada.
KR20100007738A (ko) * 2008-07-14 2010-01-22 한국전자통신연구원 음성/오디오 통합 신호의 부호화/복호화 장치
ES2592416T3 (es) * 2008-07-17 2016-11-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Esquema de codificación/decodificación de audio que tiene una derivación conmutable
EP2473995B9 (en) * 2009-10-20 2016-12-21 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio signal encoder, audio signal decoder, method for providing an encoded representation of an audio content, method for providing a decoded representation of an audio content and computer program for use in low delay applications
CN102859589B (zh) * 2009-10-20 2014-07-09 弗兰霍菲尔运输应用研究公司 多模式音频编译码器及其适用的码簿激励线性预测编码
MX2012004648A (es) * 2009-10-20 2012-05-29 Fraunhofer Ges Forschung Codificacion de señal de audio, decodificador de señal de audio, metodo para codificar o decodificar una señal de audio utilizando una cancelacion del tipo aliasing.
ES2534972T3 (es) * 2011-02-14 2015-04-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Predicción lineal basada en esquema de codificación utilizando conformación de ruido de dominio espectral

Also Published As

Publication number Publication date
BR122021009252B1 (pt) 2022-03-03
KR20110052622A (ko) 2011-05-18
CN102105930B (zh) 2012-10-03
RU2498419C2 (ru) 2013-11-10
JP2011527459A (ja) 2011-10-27
CA2730315C (en) 2014-12-16
AR072556A1 (es) 2010-09-08
JP5369180B2 (ja) 2013-12-18
EP2311034B1 (en) 2015-11-04
AU2009267394A1 (en) 2010-01-14
TWI441168B (zh) 2014-06-11
BR122021009256B1 (pt) 2022-03-03
MY156654A (en) 2016-03-15
PL2311034T3 (pl) 2016-04-29
US20110173008A1 (en) 2011-07-14
KR101227729B1 (ko) 2013-01-29
BRPI0910784A2 (pt) 2021-04-20
BRPI0910784B1 (pt) 2022-02-15
CO6351832A2 (es) 2011-12-20
ZA201100090B (en) 2011-10-26
WO2010003663A1 (en) 2010-01-14
MX2011000369A (es) 2011-07-29
AU2009267394B2 (en) 2012-10-18
US8751246B2 (en) 2014-06-10
CN102105930A (zh) 2011-06-22
HK1157489A1 (en) 2012-06-29
EP2311034A1 (en) 2011-04-20
RU2011104004A (ru) 2012-08-20
TW201009815A (en) 2010-03-01
CA2730315A1 (en) 2010-01-14

Similar Documents

Publication Publication Date Title
ES2558229T3 (es) Codificador y decodificador de audio para codificar tramas de señales de audio muestreadas
JP7260509B2 (ja) スペクトルエンベロープのサンプル値のコンテキストベースエントロピー符号化
CO6351833A2 (es) Codificador y decodificador de audio para codificar y decodificar tramas de una señal de audio muestreada
AU2008339211B2 (en) A method and an apparatus for processing an audio signal
US7876966B2 (en) Switching between coding schemes
US8010348B2 (en) Adaptive encoding and decoding with forward linear prediction
US7774205B2 (en) Coding of sparse digital media spectral data
AU2009209444B2 (en) Lossless multi-channel audio codec using adaptive segmentation with random access point (RAP) and multiple prediction parameter set (MPPS) capability
RU2019137625A (ru) Способ и устройство для предоставления компенсационных смещений для набора восстановленных выборок изображения
KR101428487B1 (ko) 멀티 채널 부호화 및 복호화 방법 및 장치
KR101256542B1 (ko) 소리 신호 부호화 방법, 소리 신호 복호 방법, 부호화 장치, 복호 장치, 소리 신호 처리 시스템, 및 소리 신호 부호화 프로그램 및 소리 신호 복호 프로그램을 기록한 컴퓨터로 읽을 수 있는 매체
JP6248194B2 (ja) 多チャネルオーディオ符号化におけるノイズ充填
EA201690326A1 (ru) Устройство кодирования видеокадров и устройство декодирования видеокадров
RU2013151798A (ru) Устройство для квантования коэффициентов кодирования с линейным предсказанием, устройство кодирования звука, устройство для деквантования коэффициентов кодирования с линейным предсказанием, устройство декодирования звука и электронное устройство для него
RU2012147587A (ru) Аудиокодер, аудиодекодер и связанные способы обработки многоканальных аудиосигналов с использованием комплексного предсказания
DK1879179T3 (da) Fremgangsmåde og anordning til kodning af audiodata baseret på vektorkvantisering
AU2019203173A1 (en) Audio encoder, audio decoder, method for encoding an audio signal and method for decoding an encoded audio signal
RU2013134227A (ru) Кодирование звука с малой задержкой, содержащее чередующиеся предсказательное кодирование и кодирование с преобразованием
TWI559294B (zh) 支援轉換長度切換的頻率域音源編碼器、解碼器、編碼方法、解碼方法及電腦程式
JP2019164367A (ja) 低複雑度の調性適応音声信号量子化
JPWO2012004998A1 (ja) スペクトル係数コーディングの量子化パラメータを効率的に符号化する装置及び方法
EP2306454B1 (en) Method and device for decoding an audio signal that has a base layer and an enhancement layer
TWI540570B (zh) 用以處理編碼信號之裝置及方法和用以產生編碼信號之編碼器及方法
AR072424A1 (es) Codificador y decodificador de audio para codificar y decodificar tramas de una senal de audio muestreada
KR102148407B1 (ko) 소스 필터를 이용한 주파수 스펙트럼 처리 장치 및 방법