BRPI0410856B8 - métodos de codificar e de decodificar sinais multicanais, aparelho codificador, e, aparelho decodificador - Google Patents

métodos de codificar e de decodificar sinais multicanais, aparelho codificador, e, aparelho decodificador Download PDF

Info

Publication number
BRPI0410856B8
BRPI0410856B8 BRPI0410856A BRPI0410856A BRPI0410856B8 BR PI0410856 B8 BRPI0410856 B8 BR PI0410856B8 BR PI0410856 A BRPI0410856 A BR PI0410856A BR PI0410856 A BRPI0410856 A BR PI0410856A BR PI0410856 B8 BRPI0410856 B8 BR PI0410856B8
Authority
BR
Brazil
Prior art keywords
encoding
signal
mono
methods
signals
Prior art date
Application number
BRPI0410856A
Other languages
English (en)
Inventor
Taleb Anisse
Enström Daniel
Johansson Ingemar
Bruhn Stefan
Original Assignee
Ericsson Telefon Ab L M
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
Priority claimed from SE0303501A external-priority patent/SE0303501D0/xx
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to BRPI0419281-8A priority Critical patent/BRPI0419281B1/pt
Publication of BRPI0410856A publication Critical patent/BRPI0410856A/pt
Publication of BRPI0410856B1 publication Critical patent/BRPI0410856B1/pt
Publication of BRPI0410856B8 publication Critical patent/BRPI0410856B8/pt

Links

Classifications

    • 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
    • G10L19/008—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 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes

Abstract

"métodos de codificar e de decodificar sinais polifônicos, aparelho de codificador, e, sistema de áudio". sinais polifônicos são usados para criar um sinal principal, tipicamente um sinal mono, e um sinal lateral (x~ lateral~). vários esquemas de codificação (81) para o sinal lateral (x~ lateral~) são providos. cada esquema de codificação (81) é caracterizado por um conjunto de subquadros (90) de comprimentos diferentes. o comprimento total dos subquadros (90) corresponde ao comprimento do quadro de codificação (80) do esquema de codificação (81). o esquema de codificação (81) a ser usado no sinal lateral (x~ lateral~) é selecionado dependente do conteúdo de sinal presente dos sinais polifônicos. em uma concretização preferida, um sinal residual lateral é criado como a diferença entre o sinal lateral e o sinal principal graduado com um fator de equilíbrio. o fator de equilíbrio é selecionado para minimizar o sinal residual lateral. o sinal residual lateral otimizado e o fator de equilíbrio são codificados e providos como parâmetros de codificação representando o sinal lateral.
BRPI0410856A 2003-12-19 2004-12-15 métodos de codificar e de decodificar sinais multicanais, aparelho codificador, e, aparelho decodificador BRPI0410856B8 (pt)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BRPI0419281-8A BRPI0419281B1 (pt) 2003-12-19 2004-12-15 Métodos de codificar e de decodificar sinais multicanais, e, aparelhos codificador e decodificador

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
SE0303501-1 2003-12-19
SE0303501A SE0303501D0 (sv) 2003-12-19 2003-12-19 Filter-based parametric multi-channel coding
SE0400417A SE527670C2 (sv) 2003-12-19 2004-02-20 Naturtrogenhetsoptimerad kodning med variabel ramlängd
SE0400417-2 2004-02-20
PCT/SE2004/001867 WO2005059899A1 (en) 2003-12-19 2004-12-15 Fidelity-optimised variable frame length encoding

Publications (3)

Publication Number Publication Date
BRPI0410856A BRPI0410856A (pt) 2006-07-04
BRPI0410856B1 BRPI0410856B1 (pt) 2019-10-01
BRPI0410856B8 true BRPI0410856B8 (pt) 2019-10-15

Family

ID=31996354

Family Applications (2)

Application Number Title Priority Date Filing Date
BRPI0419281-8A BRPI0419281B1 (pt) 2003-12-19 2004-12-15 Métodos de codificar e de decodificar sinais multicanais, e, aparelhos codificador e decodificador
BRPI0410856A BRPI0410856B8 (pt) 2003-12-19 2004-12-15 métodos de codificar e de decodificar sinais multicanais, aparelho codificador, e, aparelho decodificador

Family Applications Before (1)

Application Number Title Priority Date Filing Date
BRPI0419281-8A BRPI0419281B1 (pt) 2003-12-19 2004-12-15 Métodos de codificar e de decodificar sinais multicanais, e, aparelhos codificador e decodificador

Country Status (15)

Country Link
EP (2) EP1845519B1 (pt)
JP (2) JP4335917B2 (pt)
CN (2) CN101118747B (pt)
AT (2) ATE443317T1 (pt)
AU (1) AU2004298708B2 (pt)
BR (2) BRPI0419281B1 (pt)
CA (2) CA2690885C (pt)
DE (2) DE602004023240D1 (pt)
HK (2) HK1091585A1 (pt)
MX (1) MXPA05012230A (pt)
PL (1) PL1623411T3 (pt)
RU (2) RU2305870C2 (pt)
SE (1) SE527670C2 (pt)
WO (1) WO2005059899A1 (pt)
ZA (1) ZA200508980B (pt)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100981699B1 (ko) * 2002-07-12 2010-09-13 코닌클리케 필립스 일렉트로닉스 엔.브이. 오디오 코딩
US8214220B2 (en) 2005-05-26 2012-07-03 Lg Electronics Inc. Method and apparatus for embedding spatial information and reproducing embedded signal for an audio signal
JP4639966B2 (ja) * 2005-05-31 2011-02-23 ヤマハ株式会社 オーディオデータ圧縮方法およびオーディオデータ圧縮回路並びにオーディオデータ伸張回路
JP2009500657A (ja) 2005-06-30 2009-01-08 エルジー エレクトロニクス インコーポレイティド オーディオ信号をエンコーディング及びデコーディングするための装置とその方法
WO2007004833A2 (en) 2005-06-30 2007-01-11 Lg Electronics Inc. Method and apparatus for encoding and decoding an audio signal
EP1946294A2 (en) 2005-06-30 2008-07-23 LG Electronics Inc. Apparatus for encoding and decoding audio signal and method thereof
US7411528B2 (en) * 2005-07-11 2008-08-12 Lg Electronics Co., Ltd. Apparatus and method of processing an audio signal
US7788107B2 (en) 2005-08-30 2010-08-31 Lg Electronics Inc. Method for decoding an audio signal
KR20080049735A (ko) 2005-08-30 2008-06-04 엘지전자 주식회사 오디오 신호의 디코딩 방법 및 장치
US8577483B2 (en) 2005-08-30 2013-11-05 Lg Electronics, Inc. Method for decoding an audio signal
US7765104B2 (en) 2005-08-30 2010-07-27 Lg Electronics Inc. Slot position coding of residual signals of spatial audio coding application
WO2007040365A1 (en) 2005-10-05 2007-04-12 Lg Electronics Inc. Method and apparatus for signal processing and encoding and decoding method, and apparatus therefor
US7751485B2 (en) 2005-10-05 2010-07-06 Lg Electronics Inc. Signal processing using pilot based coding
US7696907B2 (en) 2005-10-05 2010-04-13 Lg Electronics Inc. Method and apparatus for signal processing and encoding and decoding method, and apparatus therefor
US7672379B2 (en) 2005-10-05 2010-03-02 Lg Electronics Inc. Audio signal processing, encoding, and decoding
KR100857120B1 (ko) 2005-10-05 2008-09-05 엘지전자 주식회사 신호 처리 방법 및 이의 장치, 그리고 인코딩 및 디코딩방법 및 이의 장치
US7646319B2 (en) 2005-10-05 2010-01-12 Lg Electronics Inc. Method and apparatus for signal processing and encoding and decoding method, and apparatus therefor
US7716043B2 (en) 2005-10-24 2010-05-11 Lg Electronics Inc. Removing time delays in signal paths
WO2007080211A1 (en) * 2006-01-09 2007-07-19 Nokia Corporation Decoding of binaural audio signals
US7752053B2 (en) 2006-01-13 2010-07-06 Lg Electronics Inc. Audio signal processing using pilot based coding
EP1982328A1 (en) 2006-02-06 2008-10-22 Telefonaktiebolaget LM Ericsson (publ) Variable frame offset coding
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
US7889103B2 (en) 2008-03-13 2011-02-15 Motorola Mobility, Inc. Method and apparatus for low complexity combinatorial coding of signals
US8639519B2 (en) 2008-04-09 2014-01-28 Motorola Mobility Llc Method and apparatus for selective signal coding based on core encoder performance
EP2124486A1 (de) * 2008-05-13 2009-11-25 Clemens Par Winkelabhängig operierende Vorrichtung oder Methodik zur Gewinnung eines pseudostereophonen Audiosignals
BR122020009732B1 (pt) 2008-05-23 2021-01-19 Koninklijke Philips N.V. Método para a geração de um sinal esquerdo e de um sinal direito a partir de um sinal de downmix mono com base em parâmetros espaciais, meio legível por computador não transitório, aparelho de downmix estéreo paramétrico para a geração de um sinal de downmix mono a partir de um sinal esquerdo e de um sinal direito com base em parâmetros espaciais e método para a geração de um sinal residual de previsão para um sinal de diferença a partir de um sinal esquerdo e de um sinal direito com base em parâmetros espaciais
WO2010016270A1 (ja) * 2008-08-08 2010-02-11 パナソニック株式会社 量子化装置、符号化装置、量子化方法及び符号化方法
RU2481650C2 (ru) * 2008-09-17 2013-05-10 Франс Телеком Ослабление опережающих эхо-сигналов в цифровом звуковом сигнале
JP5309944B2 (ja) 2008-12-11 2013-10-09 富士通株式会社 オーディオ復号装置、方法、及びプログラム
US8200496B2 (en) 2008-12-29 2012-06-12 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
US8219408B2 (en) 2008-12-29 2012-07-10 Motorola Mobility, Inc. Audio signal decoder and method for producing a scaled reconstructed audio signal
US8140342B2 (en) 2008-12-29 2012-03-20 Motorola Mobility, Inc. Selective scaling mask computation based on peak detection
WO2011013381A1 (ja) * 2009-07-31 2011-02-03 パナソニック株式会社 符号化装置および復号装置
WO2011048798A1 (ja) * 2009-10-20 2011-04-28 パナソニック株式会社 符号化装置、復号化装置およびこれらの方法
EP2346028A1 (en) * 2009-12-17 2011-07-20 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. An apparatus and a method for converting a first parametric spatial audio signal into a second parametric spatial audio signal
CN102770913B (zh) * 2009-12-23 2015-10-07 诺基亚公司 稀疏音频
US8442837B2 (en) 2009-12-31 2013-05-14 Motorola Mobility Llc Embedded speech and audio coding using a switchable model core
US8428936B2 (en) 2010-03-05 2013-04-23 Motorola Mobility Llc Decoder for audio signal including generic audio and speech frames
US8423355B2 (en) 2010-03-05 2013-04-16 Motorola Mobility Llc Encoder for audio signal including generic audio and speech frames
EP2544465A1 (en) 2011-07-05 2013-01-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method and apparatus for decomposing a stereo recording using frequency-domain processing employing a spectral weights generator
US9129600B2 (en) 2012-09-26 2015-09-08 Google Technology Holdings LLC Method and apparatus for encoding an audio signal
KR102259112B1 (ko) * 2012-11-15 2021-05-31 가부시키가이샤 엔.티.티.도코모 음성 부호화 장치, 음성 부호화 방법, 음성 부호화 프로그램, 음성 복호 장치, 음성 복호 방법 및 음성 복호 프로그램
KR102636396B1 (ko) 2015-09-25 2024-02-15 보이세지 코포레이션 스테레오 사운드 신호를 1차 및 2차 채널로 시간 영역 다운 믹싱하기 위해 좌측 및 우측 채널들간의 장기 상관 차이를 이용하는 방법 및 시스템
CN107742521B (zh) 2016-08-10 2021-08-13 华为技术有限公司 多声道信号的编码方法和编码器
CN109215668B (zh) 2017-06-30 2021-01-05 华为技术有限公司 一种声道间相位差参数的编码方法及装置
CN110728986B (zh) 2018-06-29 2022-10-18 华为技术有限公司 立体声信号的编码方法、解码方法、编码装置和解码装置
CN112233682A (zh) * 2019-06-29 2021-01-15 华为技术有限公司 一种立体声编码方法、立体声解码方法和装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5434948A (en) * 1989-06-15 1995-07-18 British Telecommunications Public Limited Company Polyphonic coding
NL9100173A (nl) * 1991-02-01 1992-09-01 Philips Nv Subbandkodeerinrichting, en een zender voorzien van de kodeerinrichting.
US5285498A (en) * 1992-03-02 1994-02-08 At&T Bell Laboratories Method and apparatus for coding audio signals based on perceptual model
US5694332A (en) * 1994-12-13 1997-12-02 Lsi Logic Corporation MPEG audio decoding system with subframe input buffering
US5956674A (en) * 1995-12-01 1999-09-21 Digital Theater Systems, Inc. Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels
US5812971A (en) * 1996-03-22 1998-09-22 Lucent Technologies Inc. Enhanced joint stereo coding method using temporal envelope shaping
US5796842A (en) * 1996-06-07 1998-08-18 That Corporation BTSC encoder
US6463410B1 (en) * 1998-10-13 2002-10-08 Victor Company Of Japan, Ltd. Audio signal processing apparatus
US6226616B1 (en) * 1999-06-21 2001-05-01 Digital Theater Systems, Inc. Sound quality of established low bit-rate audio coding systems without loss of decoder compatibility
JP3335605B2 (ja) * 2000-03-13 2002-10-21 日本電信電話株式会社 ステレオ信号符号化方法
ATE320651T1 (de) * 2001-05-08 2006-04-15 Koninkl Philips Electronics Nv Kodieren eines audiosignals
JP2003084790A (ja) * 2001-09-17 2003-03-19 Matsushita Electric Ind Co Ltd 台詞成分強調装置
CN1219415C (zh) * 2002-07-23 2005-09-14 华南理工大学 一种5.1通路环绕声的耳机重发的信号处理方法

Also Published As

Publication number Publication date
JP4589366B2 (ja) 2010-12-01
EP1623411B1 (en) 2007-08-29
CN101118747A (zh) 2008-02-06
WO2005059899A1 (en) 2005-06-30
BRPI0419281B1 (pt) 2018-08-14
SE527670C2 (sv) 2006-05-09
RU2007121143A (ru) 2008-12-10
EP1845519A2 (en) 2007-10-17
CN101118747B (zh) 2011-02-23
DE602004008613T2 (de) 2008-06-12
JP2008026914A (ja) 2008-02-07
EP1623411A1 (en) 2006-02-08
AU2004298708B2 (en) 2008-01-03
JP2007529021A (ja) 2007-10-18
MXPA05012230A (es) 2006-02-10
AU2004298708A1 (en) 2005-06-30
EP1845519A3 (en) 2007-11-07
DE602004023240D1 (de) 2009-10-29
DE602004008613D1 (de) 2007-10-11
CA2690885A1 (en) 2005-06-30
SE0400417D0 (sv) 2004-02-20
BRPI0410856B1 (pt) 2019-10-01
JP4335917B2 (ja) 2009-09-30
HK1115665A1 (en) 2008-12-05
CA2527971C (en) 2011-03-15
ATE371924T1 (de) 2007-09-15
RU2005134365A (ru) 2006-05-27
SE0400417L (sv) 2005-06-20
ATE443317T1 (de) 2009-10-15
BRPI0410856A (pt) 2006-07-04
RU2425340C2 (ru) 2011-07-27
PL1623411T3 (pl) 2008-01-31
CA2527971A1 (en) 2005-06-30
CN1816847A (zh) 2006-08-09
EP1845519B1 (en) 2009-09-16
CA2690885C (en) 2014-01-21
RU2305870C2 (ru) 2007-09-10
HK1091585A1 (en) 2007-01-19
CN100559465C (zh) 2009-11-11
ZA200508980B (en) 2007-03-28

Similar Documents

Publication Publication Date Title
BRPI0410856B8 (pt) métodos de codificar e de decodificar sinais multicanais, aparelho codificador, e, aparelho decodificador
EP0797324A3 (en) Enhanced joint stereo coding method using temporal envelope shaping
PT1803117E (pt) Conformação individual de canal para esquemas bcc e similares
BR0305434A (pt) Métodos e arranjos para codificar e para decodificar um sinal de áudio multicanal, aparelhos para fornecer um sinal de áudio codificado e um sinal de áudio decodificado, sinal de áudio multicanal codificado, e, meio de armazenagem
EP1821287A4 (en) AUDIO CODING DEVICE AND AUDIO CODING METHOD
ATE557552T1 (de) Verfahren, vorrichtung, kodierer, dekodierer und audiosystem
DK1016320T3 (da) Fremgangsmåde og apparat til indkodning og dekodning af multiple audiokanaler ved lave bithastigheder
WO1998019407A3 (en) Method & apparatus for decoding multi-channel audio data
ATE343311T1 (de) Verfahren und system zur räumlichen kodierung mit niedriger bitrate
BR0304540A (pt) Métodos para codificar um sinal de áudio, e para decodificar um sinal de áudio codificado, codificador para codificar um sinal de áudio, aparelho para fornecer um sinal de áudio, sinal de áudio codificado, meio de armazenagem, e, decodificador para decodificar um sinal de áudio codificado
WO1998018230A3 (en) Audio decoder with an adaptive frequency domain downmixer
ES2405311T3 (es) Aparato para restaurar una señal de audio multicanal usando un decodificador de MPEG surround
PL1803325T3 (pl) Kształtowanie obwiedni dźwięku rozproszonego wykorzystywane w schematach kodowania binauralnego i podobnych
AU2001294125A1 (en) Apparatus for bandwidth expansion of a speech signal
BR0305555A (pt) Método e codificador para codificar um sinal de áudio, aparelho para fornecimento de um sinal de áudio, sinal de áudio codificado, meio de armazenamento, e, método e decodificador para decodificar um sinal de áudio codificado
DE59801343D1 (de) Verfahren und vorrichtung zum codieren eines zeitdiskreten stereosignals
FR2849727B1 (fr) Procede de codage et de decodage audio a debit variable
ATE218260T1 (de) Vorrichtung und verfahren zur videosignalkodierung
DE60200632D1 (de) Verfahren zur Sprachaktivitätsdetektion in einem Signal, und Sprachkodierer mit Vorrichtung zur Ausführung des Verfahrens
KR960039979A (ko) 음성다중 시스템을 적용한 디지탈 오디오 부호화기
FR2791167B1 (fr) Procedes de codage, de decodage et de transcodage audio
KR950701113A (ko) 배경음을 엔코딩 및 디코딩하는 방법 및 장치(method and apparatus for encoding/decoding of background sounds)
DK0787416T3 (da) Fremgangsmåde til måling af stereofoniske audiosignalers kvalitet og fremgangsmåde til erkendelse af fælles kodede stereofo
KR970011726B1 (en) Audio encoder and decoder used for filter

Legal Events

Date Code Title Description
B15K Others concerning applications: alteration of classification

Ipc: G10L 19/008 (2013.01), G10L 19/18 (2013.01)

B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]
B12B Appeal against refusal [chapter 12.2 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 01/10/2019, OBSERVADAS AS CONDICOES LEGAIS. (CO) 10 (DEZ) ANOS CONTADOS A PARTIR DE 01/10/2019, OBSERVADAS AS CONDICOES LEGAIS

B16C Correction of notification of the grant [chapter 16.3 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 01/10/2019, OBSERVADAS AS CONDICOES LEGAIS. (CO) REFERENTE A RPI 2543 DE 01/10/2019,QUANTO AO ITEM (73) QUALIFICACAO DO DEPOSITANTE.