JP2011522472A5 - - Google Patents

Download PDF

Info

Publication number
JP2011522472A5
JP2011522472A5 JP2011510076A JP2011510076A JP2011522472A5 JP 2011522472 A5 JP2011522472 A5 JP 2011522472A5 JP 2011510076 A JP2011510076 A JP 2011510076A JP 2011510076 A JP2011510076 A JP 2011510076A JP 2011522472 A5 JP2011522472 A5 JP 2011522472A5
Authority
JP
Japan
Prior art keywords
signal
parametric stereo
monaural
difference
bitstream
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.)
Granted
Application number
JP2011510076A
Other languages
English (en)
Japanese (ja)
Other versions
JP2011522472A (ja
JP5122681B2 (ja
Filing date
Publication date
Application filed filed Critical
Priority claimed from PCT/IB2009/052009 external-priority patent/WO2009141775A1/en
Publication of JP2011522472A publication Critical patent/JP2011522472A/ja
Publication of JP2011522472A5 publication Critical patent/JP2011522472A5/ja
Application granted granted Critical
Publication of JP5122681B2 publication Critical patent/JP5122681B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

JP2011510076A 2008-05-23 2009-05-14 パラメトリックステレオアップミクス装置、パラメトリックステレオデコーダ、パラメトリックステレオダウンミクス装置、及びパラメトリックステレオエンコーダ Active JP5122681B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP08156801.6 2008-05-23
EP08156801 2008-05-23
PCT/IB2009/052009 WO2009141775A1 (en) 2008-05-23 2009-05-14 A parametric stereo upmix apparatus, a parametric stereo decoder, a parametric stereo downmix apparatus, a parametric stereo encoder

Publications (3)

Publication Number Publication Date
JP2011522472A JP2011522472A (ja) 2011-07-28
JP2011522472A5 true JP2011522472A5 (enExample) 2012-10-18
JP5122681B2 JP5122681B2 (ja) 2013-01-16

Family

ID=40943873

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011510076A Active JP5122681B2 (ja) 2008-05-23 2009-05-14 パラメトリックステレオアップミクス装置、パラメトリックステレオデコーダ、パラメトリックステレオダウンミクス装置、及びパラメトリックステレオエンコーダ

Country Status (10)

Country Link
US (6) US8811621B2 (enExample)
EP (1) EP2283483B1 (enExample)
JP (1) JP5122681B2 (enExample)
KR (1) KR101629862B1 (enExample)
CN (1) CN102037507B (enExample)
BR (3) BR122020009727B1 (enExample)
MX (1) MX2010012580A (enExample)
RU (1) RU2497204C2 (enExample)
TW (1) TWI484477B (enExample)
WO (1) WO2009141775A1 (enExample)

Families Citing this family (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4643453B2 (ja) 2006-01-10 2011-03-02 株式会社東芝 情報処理装置及び情報処理装置の動画像復号方法
BR122020009727B1 (pt) * 2008-05-23 2021-04-06 Koninklijke Philips N.V. Método
CN101826326B (zh) * 2009-03-04 2012-04-04 华为技术有限公司 一种立体声编码方法、装置和编码器
KR20110018107A (ko) * 2009-08-17 2011-02-23 삼성전자주식회사 레지듀얼 신호 인코딩 및 디코딩 방법 및 장치
TWI463485B (zh) * 2009-09-29 2014-12-01 Fraunhofer Ges Forschung 音訊信號解碼器或編碼器、用以提供上混信號表示型態或位元串流表示型態之方法、電腦程式及機器可存取媒體
TWI444989B (zh) 2010-01-22 2014-07-11 Dolby Lab Licensing Corp 針對改良多通道上混使用多通道解相關之技術
WO2011104146A1 (en) * 2010-02-24 2011-09-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus for generating an enhanced downmix signal, method for generating an enhanced downmix signal and computer program
EP2375410B1 (en) * 2010-03-29 2017-11-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. A spatial audio processor and a method for providing spatial parameters based on an acoustic input signal
AU2016222372B2 (en) * 2010-04-09 2018-06-28 Dolby International Ab Mdct-based complex prediction stereo coding
EP2375409A1 (en) * 2010-04-09 2011-10-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder, audio decoder and related methods for processing multi-channel audio signals using complex prediction
EP3799043B8 (en) * 2010-04-09 2022-12-14 Dolby International AB Mdct-based complex prediction stereo decoding
EP3779981B1 (en) * 2010-04-13 2023-06-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio or video encoder, audio or video decoder and related methods for processing multi-channel audio or video signals using a variable prediction direction
CN102314882B (zh) * 2010-06-30 2012-10-17 华为技术有限公司 声音信号通道间延时估计的方法及装置
JP2012100241A (ja) 2010-10-05 2012-05-24 Panasonic Corp 画像編集装置、画像編集方法、及び、そのプログラム
FR2966634A1 (fr) * 2010-10-22 2012-04-27 France Telecom Codage/decodage parametrique stereo ameliore pour les canaux en opposition de phase
US8654984B2 (en) * 2011-04-26 2014-02-18 Skype Processing stereophonic audio signals
JP6133413B2 (ja) 2012-06-14 2017-05-24 ドルビー・インターナショナル・アーベー マルチチャネル・オーディオのためのなめらかな構成切り換え
PT2880654T (pt) 2012-08-03 2017-12-07 Fraunhofer Ges Forschung Descodificador e método para um conceito paramétrico generalizado de codificação de objeto de áudio espacial para caixas de downmix/upmix multicanal
MX362990B (es) * 2013-01-08 2019-03-01 Dolby Int Ab Prediccion basada en modelo en un banco de filtros de muestreo critico.
EP3933834B1 (en) 2013-07-05 2024-07-24 Dolby International AB Enhanced soundfield coding using parametric component generation
EP2830051A3 (en) 2013-07-22 2015-03-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder, audio decoder, methods and computer program using jointly encoded residual signals
EP2830053A1 (en) * 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Multi-channel audio decoder, multi-channel audio encoder, methods and computer program using a residual-signal-based adjustment of a contribution of a decorrelated signal
KR101461110B1 (ko) * 2013-09-06 2014-11-12 광주과학기술원 스테레오 확장장치 및 스테레오 확장방법
KR102244379B1 (ko) * 2013-10-21 2021-04-26 돌비 인터네셔널 에이비 오디오 신호들의 파라메트릭 재구성
WO2015059152A1 (en) 2013-10-21 2015-04-30 Dolby International Ab Decorrelator structure for parametric reconstruction of audio signals
CN103700372B (zh) * 2013-12-30 2016-10-05 北京大学 一种基于正交解相关技术的参数立体声编码、解码方法
CN107004421B (zh) * 2014-10-31 2020-07-07 杜比国际公司 多通道音频信号的参数编码和解码
KR102230727B1 (ko) 2016-01-22 2021-03-22 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 광대역 정렬 파라미터 및 복수의 협대역 정렬 파라미터들을 사용하여 다채널 신호를 인코딩 또는 디코딩하기 위한 장치 및 방법
US9978381B2 (en) * 2016-02-12 2018-05-22 Qualcomm Incorporated Encoding of multiple audio signals
US10224042B2 (en) * 2016-10-31 2019-03-05 Qualcomm Incorporated Encoding of multiple audio signals
ES3042934T3 (en) 2016-11-08 2025-11-24 Fraunhofer Ges Forschung Downmixer and method for downmixing at least two channels and multichannel encoder and multichannel decoder
EP4167233A1 (en) * 2016-11-08 2023-04-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for encoding or decoding a multichannel signal using a side gain and a residual gain
JP7076824B2 (ja) * 2017-01-04 2022-05-30 ザット コーポレイション 複数のオーディオ強調モードに構成可能なシステム
US10877192B2 (en) 2017-04-18 2020-12-29 Saudi Arabian Oil Company Method of fabricating smart photonic structures for material monitoring
US10401155B2 (en) 2017-05-12 2019-09-03 Saudi Arabian Oil Company Apparatus and method for smart material analysis
EP3659140B1 (en) * 2017-07-28 2023-09-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus for encoding or decoding an encoded multichannel signal using a filling signal generated by a broad band filter
CN114005455A (zh) 2017-08-10 2022-02-01 华为技术有限公司 时域立体声编解码方法和相关产品
CN114898761A (zh) 2017-08-10 2022-08-12 华为技术有限公司 立体声信号编解码方法及装置
CN109389986B (zh) 2017-08-10 2023-08-22 华为技术有限公司 时域立体声参数的编码方法和相关产品
TWI812658B (zh) 2017-12-19 2023-08-21 瑞典商都比國際公司 用於統一語音及音訊之解碼及編碼去關聯濾波器之改良之方法、裝置及系統
KR102763910B1 (ko) 2017-12-19 2025-02-07 돌비 인터네셔널 에이비 통합 음성 및 오디오 디코딩 및 인코딩 개선을 위한 방법, 장치 및 시스템
CN111670473B (zh) 2017-12-19 2024-08-09 杜比国际公司 用于统一语音及音频解码基于qmf的谐波移调器改进的方法及设备
MX2020010462A (es) 2018-04-05 2020-10-22 Fraunhofer Ges Forschung Aparato, metodo o programa de computacion para estimar la diferencia de tiempo entre canales.
US11417348B2 (en) * 2018-04-05 2022-08-16 Telefonaktiebolaget Lm Erisson (Publ) Truncateable predictive coding
WO2020009082A1 (ja) 2018-07-03 2020-01-09 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ 符号化装置及び符号化方法
US10841689B2 (en) * 2018-10-02 2020-11-17 Harman International Industries, Incorporated Loudspeaker and tower configuration
CN117953905A (zh) 2018-12-07 2024-04-30 弗劳恩霍夫应用研究促进协会 从包括至少一个声道的信号产生声场描述的装置、方法
CN114270437B (zh) * 2019-06-14 2025-05-30 弗劳恩霍夫应用研究促进协会 参数编码与解码
EP4120251B1 (en) * 2020-03-09 2024-12-18 Nippon Telegraph and Telephone Corporation Sound signal encoding method, sound signal decoding method, sound signal encoding device, sound signal decoding device, program, and recording medium
WO2021181746A1 (ja) * 2020-03-09 2021-09-16 日本電信電話株式会社 音信号ダウンミックス方法、音信号符号化方法、音信号ダウンミックス装置、音信号符号化装置、プログラム及び記録媒体
EP4120250B1 (en) * 2020-03-09 2025-04-16 Nippon Telegraph And Telephone Corporation Sound signal downmixing method, sound signal coding method, sound signal downmixing device, sound signal coding device, program, and recording medium
US12170091B2 (en) * 2020-03-09 2024-12-17 Nippon Telegraph And Telephone Corporation Sound signal encoding method, sound signal decoding method, sound signal encoding apparatus, sound signal decoding apparatus, program, and recording medium
KR20250168287A (ko) * 2023-04-13 2025-12-02 오렌지 스테레오 오디오 신호의 채널을 감소시키기 위한 최적화된 처리
FR3147898A1 (fr) * 2023-04-13 2024-10-18 Orange Traitement optimisé de réduction de canaux d’un signal audio stéréophonique

Family Cites Families (23)

* 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
GB8913758D0 (en) 1989-06-15 1989-08-02 British Telecomm Polyphonic coding
US5488665A (en) * 1993-11-23 1996-01-30 At&T Corp. Multi-channel perceptual audio compression system with encoding mode switching among matrixed channels
EP1500085B1 (en) * 2002-04-10 2013-02-20 Koninklijke Philips Electronics N.V. Coding of stereo signals
KR101021076B1 (ko) * 2002-04-22 2011-03-11 코닌클리케 필립스 일렉트로닉스 엔.브이. 신호 합성
SE527670C2 (sv) * 2003-12-19 2006-05-09 Ericsson Telefon Ab L M Naturtrogenhetsoptimerad kodning med variabel ramlängd
EP1719117A1 (en) * 2004-02-16 2006-11-08 Koninklijke Philips Electronics N.V. A transcoder and method of transcoding therefore
BRPI0509100B1 (pt) * 2004-04-05 2018-11-06 Koninl Philips Electronics Nv Codificador de multicanal operável para processar sinais de entrada, método paracodificar sinais de entrada em um codificador de multicanal
US7391870B2 (en) * 2004-07-09 2008-06-24 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E V Apparatus and method for generating a multi-channel output signal
SE0402650D0 (sv) * 2004-11-02 2004-11-02 Coding Tech Ab Improved parametric stereo compatible coding of spatial audio
MX2007005261A (es) 2004-11-04 2007-07-09 Koninkl Philips Electronics Nv Codificacion y descodificacion de un conjunto de senales.
EP1817767B1 (en) 2004-11-30 2015-11-11 Agere Systems Inc. Parametric coding of spatial audio with object-based side information
US7573912B2 (en) * 2005-02-22 2009-08-11 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschunng E.V. Near-transparent or transparent multi-channel encoder/decoder scheme
US7751572B2 (en) 2005-04-15 2010-07-06 Dolby International Ab Adaptive residual audio coding
CN101248483B (zh) * 2005-07-19 2011-11-23 皇家飞利浦电子股份有限公司 多声道音频信号的生成
KR100923156B1 (ko) * 2006-05-02 2009-10-23 한국전자통신연구원 멀티채널 오디오 인코딩 및 디코딩 시스템 및 방법
US8619998B2 (en) * 2006-08-07 2013-12-31 Creative Technology Ltd Spatial audio enhancement processing method and apparatus
US8027479B2 (en) * 2006-06-02 2011-09-27 Coding Technologies Ab Binaural multi-channel decoder in the context of non-energy conserving upmix rules
ES2378734T3 (es) * 2006-10-16 2012-04-17 Dolby International Ab Codificación mejorada y representación de parámetros de codificación de objetos de mezcla descendente multicanal
US8200351B2 (en) * 2007-01-05 2012-06-12 STMicroelectronics Asia PTE., Ltd. Low power downmix energy equalization in parametric stereo encoders
PL2137725T3 (pl) * 2007-04-26 2014-06-30 Dolby Int Ab Urządzenie i sposób do syntetyzowania sygnału wyjściowego
EP2023600A1 (en) 2007-07-27 2009-02-11 Thomson Licensing Method of color mapping from non-convex source gamut into non-convex target gamut
BR122020009727B1 (pt) * 2008-05-23 2021-04-06 Koninklijke Philips N.V. Método

Similar Documents

Publication Publication Date Title
JP2011522472A5 (enExample)
KR101945309B1 (ko) 위상 정보와 잔여 신호를 이용한 부호화/복호화 장치 및 방법
RU2010152580A (ru) Устройство параметрического стереофонического повышающего микширования, параметрический стереофонический декодер, устройство параметрического стереофонического понижающего микширования, параметрический стереофонический кодер
JP6412292B2 (ja) スペクトルドメイン・リサンプリングを用いて多チャネル信号を符号化又は復号化する装置及び方法
CA2881065C (en) Encoder, decoder, system and method employing a residual concept for parametric audio object coding
RU2012143501A (ru) Стереофоническое кодирование на основе mdct с комплексным предсказанием
JP2018511825A5 (enExample)
DE602007004451D1 (de) Audiokodierung und audiodekodierung
KR101792712B1 (ko) 주파수 도메인 내의 선형 예측 코딩 기반 코딩을 위한 저주파수 강조
JP6457625B2 (ja) 独立したノイズ充填を用いた強化された信号を生成するための装置および方法
RU2010147691A (ru) Способ кодирования и устройство для декодирования основывающегося на объектах аудиосигнала
MX2011009660A (es) Codificacion estereo avanzada basada en una combinacion de codificacion izquierda/derecha o media/lateral seleccionable de manera adaptable y de codificacion estereo parametrica.
JP2015525905A (ja) 空間オーディオオブジェクト符号化においてオーディオ情報を適応させる装置および方法
EP3025334B1 (en) Apparatus and method for decoding an encoded audio signal to obtain modified output signals
JP6277202B2 (ja) 隠しオブジェクトを信号混合操作に使用する空間オーディオオブジェクト符号化の装置及び方法
KR20070075237A (ko) 멀티채널 오디오 신호의 인코딩 및 디코딩 방법