MX2010012580A - Aparato de mezcla ascendente estereo parametrico, decodificador estereo parametrico, aparato de mezcla descendente estereo parametrico, codificador estereo parametrico. - Google Patents

Aparato de mezcla ascendente estereo parametrico, decodificador estereo parametrico, aparato de mezcla descendente estereo parametrico, codificador estereo parametrico.

Info

Publication number
MX2010012580A
MX2010012580A MX2010012580A MX2010012580A MX2010012580A MX 2010012580 A MX2010012580 A MX 2010012580A MX 2010012580 A MX2010012580 A MX 2010012580A MX 2010012580 A MX2010012580 A MX 2010012580A MX 2010012580 A MX2010012580 A MX 2010012580A
Authority
MX
Mexico
Prior art keywords
signal
monaural
difference
parametric stereo
downmix
Prior art date
Application number
MX2010012580A
Other languages
English (en)
Spanish (es)
Inventor
Erik G P Schuijers
Original Assignee
Koninkl Philips Electronics Nv
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40943873&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MX2010012580(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of MX2010012580A publication Critical patent/MX2010012580A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • 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
    • G10L19/018—Audio watermarking, i.e. embedding inaudible data in the audio signal
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/03—Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/03—Application of parametric coding in stereophonic audio systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mathematical Physics (AREA)
  • Multimedia (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
MX2010012580A 2008-05-23 2009-05-14 Aparato de mezcla ascendente estereo parametrico, decodificador estereo parametrico, aparato de mezcla descendente estereo parametrico, codificador estereo parametrico. MX2010012580A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
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 (1)

Publication Number Publication Date
MX2010012580A true MX2010012580A (es) 2010-12-20

Family

ID=40943873

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2010012580A MX2010012580A (es) 2008-05-23 2009-05-14 Aparato de mezcla ascendente estereo parametrico, decodificador estereo parametrico, aparato de mezcla descendente estereo parametrico, codificador estereo parametrico.

Country Status (10)

Country Link
US (6) US8811621B2 (https=)
EP (1) EP2283483B1 (https=)
JP (1) JP5122681B2 (https=)
KR (1) KR101629862B1 (https=)
CN (1) CN102037507B (https=)
BR (3) BRPI0908630B1 (https=)
MX (1) MX2010012580A (https=)
RU (1) RU2497204C2 (https=)
TW (1) TWI484477B (https=)
WO (1) WO2009141775A1 (https=)

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
BRPI0908630B1 (pt) 2008-05-23 2020-09-15 Koninklijke Philips N.V. Aparelho de 'upmix' estéreo paramétrico, decodificador estéreo paramétrico, 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, dispositivo de execução de áudio, aparelho de 'downmix' estéreo paramétrico, codificador estéreo paramétrico, 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 nos parâmetros espaciais, e, produto de programa de computador
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
CA2775828C (en) * 2009-09-29 2016-03-29 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio signal decoder, audio signal encoder, method for providing an upmix signal representation, method for providing a downmix signal representation, computer program and bitstream using a common inter-object-correlation parameter value
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
RU2586851C2 (ru) * 2010-02-24 2016-06-10 Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. Устройство для формирования улучшенного сигнала микширования с понижением, способ формирования улучшенного сигнала микширования с понижением и компьютерная программа
ES2656815T3 (es) 2010-03-29 2018-02-28 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung Procesador de audio espacial y procedimiento para proporcionar parámetros espaciales en base a una señal de entrada acústica
CA2992917C (en) * 2010-04-09 2020-05-26 Dolby International Ab Mdct-based complex prediction stereo coding
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
JP5820464B2 (ja) 2010-04-13 2015-11-24 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 オーディオまたはビデオエンコーダ、オーディオまたはビデオデコーダ、及び予測方向可変の予測を使用したマルチチャンネルオーディオまたはビデオ信号処理方法
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
US9601122B2 (en) 2012-06-14 2017-03-21 Dolby International Ab Smooth configuration switching for multichannel audio
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
CA3054712C (en) 2013-01-08 2020-06-09 Lars Villemoes Model based prediction in a critically sampled filterbank
US9830918B2 (en) 2013-07-05 2017-11-28 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
JP6479786B2 (ja) * 2013-10-21 2019-03-06 ドルビー・インターナショナル・アーベー オーディオ信号のパラメトリック再構成
CA2926243C (en) 2013-10-21 2018-01-23 Lars Villemoes 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
BR112017008015B1 (pt) * 2014-10-31 2023-11-14 Dolby International Ab Métodos e sistemas de decodificação e codificação de áudio
MY196436A (en) 2016-01-22 2023-04-11 Fraunhofer Ges Forschung Apparatus and Method for Encoding or Decoding a Multi-Channel Signal Using Frame Control Synchronization
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
RU2725178C1 (ru) 2016-11-08 2020-06-30 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Устройство и способ для кодирования или декодирования многоканального сигнала с использованием коэффициента передачи побочного сигнала и коэффициента передачи остаточного сигнала
JP6817433B2 (ja) * 2016-11-08 2021-01-20 フラウンホファー ゲセルシャフト ツール フェールデルンク ダー アンゲヴァンテン フォルシュンク エー．ファオ． 少なくとも２つのチャンネルをダウンミックスするためのダウンミキサおよび方法ならびにマルチチャンネルエンコーダおよびマルチチャンネルデコーダ
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
CA3258743A1 (en) 2017-07-28 2025-10-30 Fraunhofer-Gesellschaft Zur Foerderung 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
CN117133297A (zh) * 2017-08-10 2023-11-28 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
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
BR112020012654A2 (pt) 2017-12-19 2020-12-01 Dolby International Ab métodos, aparelhos e sistemas para aprimoramentos de decodificação e codificação de fala e áudio unificados com transpositor de harmônico com base em qmf
JP7596146B2 (ja) 2017-12-19 2024-12-09 ドルビー・インターナショナル・アーベー 音声音響統合復号および符号化の改良のための方法、機器、およびシステム
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
EP4047601A3 (en) * 2018-04-05 2022-12-21 Telefonaktiebolaget LM Ericsson (publ) Support for generation of comfort noise, and generation of comfort noise
EP4435783A3 (en) 2018-04-05 2024-12-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method or computer program for estimating an inter-channel time difference
CN112352277B (zh) 2018-07-03 2024-05-31 松下电器（美国）知识产权公司 编码装置及编码方法
US10841689B2 (en) * 2018-10-02 2020-11-17 Harman International Industries, Incorporated Loudspeaker and tower configuration
KR102692707B1 (ko) 2018-12-07 2024-08-07 프라운호퍼-게젤샤프트 추르 푀르데룽 데어 안제반텐 포르슝 에 파우 낮은 차수, 중간 차수 및 높은 차수 컴포넌트 생성기를 사용하는 DirAC 기반 공간 오디오 코딩과 관련된 인코딩, 디코딩, 장면 처리 및 기타 절차를 위한 장치, 방법 및 컴퓨터 프로그램
CA3193359A1 (en) * 2019-06-14 2020-12-17 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Parameter encoding and decoding
CN120526780A (zh) * 2020-03-09 2025-08-22 日本电信电话株式会社 声音信号缩混方法、编码方法、缩混装置及程序
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
WO2021181473A1 (ja) * 2020-03-09 2021-09-16 日本電信電話株式会社 音信号符号化方法、音信号復号方法、音信号符号化装置、音信号復号装置、プログラム及び記録媒体
EP4120249B1 (en) * 2020-03-09 2024-12-11 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
FR3147898A1 (fr) * 2023-04-13 2024-10-18 Orange Traitement optimisé de réduction de canaux d’un signal audio stéréophonique
KR20250168287A (ko) * 2023-04-13 2025-12-02 오렌지 스테레오 오디오 신호의 채널을 감소시키기 위한 최적화된 처리

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
RU2316154C2 (ru) * 2002-04-10 2008-01-27 Конинклейке Филипс Электроникс Н.В. Кодирование стереофонических сигналов
DE60311794C5 (de) * 2002-04-22 2022-11-10 Koninklijke Philips N.V. Signalsynthese
SE527670C2 (sv) * 2003-12-19 2006-05-09 Ericsson Telefon Ab L M Naturtrogenhetsoptimerad kodning med variabel ramlängd
KR20060132697A (ko) * 2004-02-16 2006-12-21 코닌클리케 필립스 일렉트로닉스 엔.브이. 트랜스코더 및 트랜스코딩 방법
CN1938760B (zh) * 2004-04-05 2012-05-23 皇家飞利浦电子股份有限公司 多通道编码器
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
US8160888B2 (en) 2005-07-19 2012-04-17 Koninklijke Philips Electronics N.V Generation of multi-channel audio signals
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
AU2007312598B2 (en) * 2006-10-16 2011-01-20 Dolby International Ab Enhanced coding and parameter representation of multichannel downmixed object coding
US8200351B2 (en) * 2007-01-05 2012-06-12 STMicroelectronics Asia PTE., Ltd. Low power downmix energy equalization in parametric stereo encoders
CA2684975C (en) * 2007-04-26 2016-08-02 Dolby Sweden Ab Apparatus and method for synthesizing an output signal
EP2023600A1 (en) 2007-07-27 2009-02-11 Thomson Licensing Method of color mapping from non-convex source gamut into non-convex target gamut
BRPI0908630B1 (pt) * 2008-05-23 2020-09-15 Koninklijke Philips N.V. Aparelho de 'upmix' estéreo paramétrico, decodificador estéreo paramétrico, 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, dispositivo de execução de áudio, aparelho de 'downmix' estéreo paramétrico, codificador estéreo paramétrico, 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 nos parâmetros espaciais, e, produto de programa de computador

Also Published As

Publication number Publication date
EP2283483B1 (en) 2013-03-13
US20170134875A1 (en) 2017-05-11
WO2009141775A1 (en) 2009-11-26
BRPI0908630A2 (pt) 2017-10-03
US8811621B2 (en) 2014-08-19
JP5122681B2 (ja) 2013-01-16
BRPI0908630A8 (pt) 2017-12-12
KR20110020846A (ko) 2011-03-03
KR101629862B1 (ko) 2016-06-24
US10136237B2 (en) 2018-11-20
TWI484477B (zh) 2015-05-11
EP2283483A1 (en) 2011-02-16
CN102037507A (zh) 2011-04-27
US20110096932A1 (en) 2011-04-28
BR122020009727B1 (pt) 2021-04-06
RU2497204C2 (ru) 2013-10-27
US12192734B2 (en) 2025-01-07
CN102037507B (zh) 2013-02-06
US9591425B2 (en) 2017-03-07
RU2010152580A (ru) 2012-06-27
JP2011522472A (ja) 2011-07-28
US11871205B2 (en) 2024-01-09
BRPI0908630B1 (pt) 2020-09-15
US11019445B2 (en) 2021-05-25
US20210274302A1 (en) 2021-09-02
US20140321652A1 (en) 2014-10-30
TW201011736A (en) 2010-03-16
US20190058960A1 (en) 2019-02-21
BR122020009732B1 (pt) 2021-01-19
US20240121567A1 (en) 2024-04-11

Similar Documents

Publication Publication Date Title
US12192734B2 (en) Parametric stereo upmix apparatus, a parametric stereo decoder, a parametric stereo downmix apparatus, a parametric stereo encoder
JP7270096B2 (ja) フレーム制御同期化を使用し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
CA2887228C (en) Encoder, decoder and methods for backward compatible multi-resolution spatial-audio-object-coding
CA2809437C (en) Apparatus for decoding a signal comprising transients using a combining unit and a mixer
RU2393646C1 (ru) Усовершенствованный способ для формирования сигнала при восстановлении многоканального аудио
AU2015201672B2 (en) Apparatus for generating a decorrelated signal using transmitted phase information
RU2858459C2 (ru) Кодер, содержащий устройство вычисления межканальных разностей фаз, и способ работы такого кодера

Legal Events

Date Code Title Description
FG Grant or registration