CN110634494B - 多声道音频内容的编码 - Google Patents

多声道音频内容的编码 Download PDF

Info

Publication number
CN110634494B
CN110634494B CN201910923737.3A CN201910923737A CN110634494B CN 110634494 B CN110634494 B CN 110634494B CN 201910923737 A CN201910923737 A CN 201910923737A CN 110634494 B CN110634494 B CN 110634494B
Authority
CN
China
Prior art keywords
signal
frequency
stereo
audio signal
decoding
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
CN201910923737.3A
Other languages
English (en)
Chinese (zh)
Other versions
CN110634494A (zh
Inventor
H·普恩哈根
H·默德
K·克约尔林
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.)
Dolby International AB
Original Assignee
Dolby International AB
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 Dolby International AB filed Critical Dolby International AB
Priority to CN201910923737.3A priority Critical patent/CN110634494B/zh
Publication of CN110634494A publication Critical patent/CN110634494A/zh
Application granted granted Critical
Publication of CN110634494B publication Critical patent/CN110634494B/zh
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
    • G10L19/008—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
    • 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
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • 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 
    • 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)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Stereophonic System (AREA)
  • Circuit For Audible Band Transducer (AREA)
CN201910923737.3A 2013-09-12 2014-09-08 多声道音频内容的编码 Active CN110634494B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910923737.3A CN110634494B (zh) 2013-09-12 2014-09-08 多声道音频内容的编码

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
US201361877189P 2013-09-12 2013-09-12
US61/877,189 2013-09-12
US201361893770P 2013-10-21 2013-10-21
US61/893,770 2013-10-21
US201461973628P 2014-04-01 2014-04-01
US61/973,628 2014-04-01
CN201910923737.3A CN110634494B (zh) 2013-09-12 2014-09-08 多声道音频内容的编码
CN201480050044.3A CN105556597B (zh) 2013-09-12 2014-09-08 多声道音频内容的编码和解码
PCT/EP2014/069044 WO2015036352A1 (en) 2013-09-12 2014-09-08 Coding of multichannel audio content

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201480050044.3A Division CN105556597B (zh) 2013-09-12 2014-09-08 多声道音频内容的编码和解码

Publications (2)

Publication Number Publication Date
CN110634494A CN110634494A (zh) 2019-12-31
CN110634494B true CN110634494B (zh) 2023-09-01

Family

ID=51492343

Family Applications (7)

Application Number Title Priority Date Filing Date
CN201910923737.3A Active CN110634494B (zh) 2013-09-12 2014-09-08 多声道音频内容的编码
CN202310876982.XA Pending CN117037810A (zh) 2013-09-12 2014-09-08 多声道音频内容的编码
CN201480050044.3A Active CN105556597B (zh) 2013-09-12 2014-09-08 多声道音频内容的编码和解码
CN201910902153.8A Active CN110473560B (zh) 2013-09-12 2014-09-08 多声道音频内容的编码
CN201910914412.9A Active CN110648674B (zh) 2013-09-12 2014-09-08 多声道音频内容的编码
CN202310882618.4A Pending CN117037811A (zh) 2013-09-12 2014-09-08 多声道音频内容的编码
CN201710504258.9A Active CN107134280B (zh) 2013-09-12 2014-09-08 多声道音频内容的编码

Family Applications After (6)

Application Number Title Priority Date Filing Date
CN202310876982.XA Pending CN117037810A (zh) 2013-09-12 2014-09-08 多声道音频内容的编码
CN201480050044.3A Active CN105556597B (zh) 2013-09-12 2014-09-08 多声道音频内容的编码和解码
CN201910902153.8A Active CN110473560B (zh) 2013-09-12 2014-09-08 多声道音频内容的编码
CN201910914412.9A Active CN110648674B (zh) 2013-09-12 2014-09-08 多声道音频内容的编码
CN202310882618.4A Pending CN117037811A (zh) 2013-09-12 2014-09-08 多声道音频内容的编码
CN201710504258.9A Active CN107134280B (zh) 2013-09-12 2014-09-08 多声道音频内容的编码

Country Status (6)

Country Link
US (6) US9646619B2 (https=)
EP (4) EP3293734B1 (https=)
JP (7) JP6392353B2 (https=)
CN (7) CN110634494B (https=)
ES (1) ES2641538T3 (https=)
WO (1) WO2015036352A1 (https=)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015036352A1 (en) * 2013-09-12 2015-03-19 Dolby International Ab Coding of multichannel audio content
WO2017068747A1 (ja) 2015-10-20 2017-04-27 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 通信装置及び通信方法
EP3588495A1 (en) * 2018-06-22 2020-01-01 FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. Multichannel audio coding
EP3818524B1 (en) * 2018-07-02 2023-12-13 Dolby Laboratories Licensing Corporation Methods and devices for generating or decoding a bitstream comprising immersive audio signals
BR112020026967A2 (pt) * 2018-07-04 2021-03-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Codificação de áudio de multissinal usando branqueamento de sinal como pré-processamento
WO2020089302A1 (en) 2018-11-02 2020-05-07 Dolby International Ab An audio encoder and an audio decoder
CN113689890B (zh) * 2021-08-09 2024-07-30 北京小米移动软件有限公司 多声道信号的转换方法、装置及存储介质

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101036183A (zh) * 2004-11-02 2007-09-12 编码技术股份公司 立体声兼容的多声道音频编码
WO2008035949A1 (en) * 2006-09-22 2008-03-27 Samsung Electronics Co., Ltd. Method, medium, and system encoding and/or decoding audio signals by using bandwidth extension and stereo coding
WO2008046530A2 (en) * 2006-10-16 2008-04-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for multi -channel parameter transformation
EP2083584A1 (en) * 2008-01-23 2009-07-29 LG Electronics Inc. A method and an apparatus for processing an audio signal
CN101529501A (zh) * 2006-10-16 2009-09-09 杜比瑞典公司 多声道下混对象编码的增强编码和参数表示
EP2175670A1 (en) * 2008-10-07 2010-04-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Binaural rendering of a multi-channel audio signal
EP2360683A1 (en) * 2010-02-18 2011-08-24 Dolby Laboratories Licensing Corporation Audio decoder and decoding method using efficient downmixing
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
CN102708868A (zh) * 2006-01-20 2012-10-03 微软公司 使用扩展带频率编码的复变换信道编码
CN102884570A (zh) * 2010-04-09 2013-01-16 杜比国际公司 基于mdct的复数预测立体声编码

Family Cites Families (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2811692B2 (ja) * 1988-11-08 1998-10-15 ヤマハ株式会社 複数チャンネルの信号圧縮方法
DE19742655C2 (de) * 1997-09-26 1999-08-05 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Codieren eines zeitdiskreten Stereosignals
KR100335611B1 (ko) * 1997-11-20 2002-10-09 삼성전자 주식회사 비트율 조절이 가능한 스테레오 오디오 부호화/복호화 방법 및 장치
SE0301273D0 (sv) * 2003-04-30 2003-04-30 Coding Technologies Sweden Ab Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods
CA2808226C (en) * 2004-03-01 2016-07-19 Dolby Laboratories Licensing Corporation Multichannel audio coding
US20090299756A1 (en) 2004-03-01 2009-12-03 Dolby Laboratories Licensing Corporation Ratio of speech to non-speech audio such as for elderly or hearing-impaired listeners
CN1677490A (zh) * 2004-04-01 2005-10-05 北京宫羽数字技术有限责任公司 一种增强音频编解码装置及方法
SE0402649D0 (sv) * 2004-11-02 2004-11-02 Coding Tech Ab Advanced methods of creating orthogonal signals
KR100682904B1 (ko) * 2004-12-01 2007-02-15 삼성전자주식회사 공간 정보를 이용한 다채널 오디오 신호 처리 장치 및 방법
US20070055510A1 (en) 2005-07-19 2007-03-08 Johannes Hilpert Concept for bridging the gap between parametric multi-channel audio coding and matrixed-surround multi-channel coding
US8160888B2 (en) * 2005-07-19 2012-04-17 Koninklijke Philips Electronics N.V Generation of multi-channel audio signals
US7761303B2 (en) * 2005-08-30 2010-07-20 Lg Electronics Inc. Slot position coding of TTT syntax of spatial audio coding application
KR100888474B1 (ko) * 2005-11-21 2009-03-12 삼성전자주식회사 멀티채널 오디오 신호의 부호화/복호화 장치 및 방법
WO2007080211A1 (en) * 2006-01-09 2007-07-19 Nokia Corporation Decoding of binaural audio signals
KR101435893B1 (ko) * 2006-09-22 2014-09-02 삼성전자주식회사 대역폭 확장 기법 및 스테레오 부호화 기법을 이용한오디오 신호의 부호화/복호화 방법 및 장치
US8571875B2 (en) * 2006-10-18 2013-10-29 Samsung Electronics Co., Ltd. Method, medium, and apparatus encoding and/or decoding multichannel audio signals
US8290167B2 (en) * 2007-03-21 2012-10-16 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Method and apparatus for conversion between multi-channel audio formats
CN101276587B (zh) * 2007-03-27 2012-02-01 北京天籁传音数字技术有限公司 声音编码装置及其方法和声音解码装置及其方法
CN101067931B (zh) * 2007-05-10 2011-04-20 芯晟(北京)科技有限公司 一种高效可配置的频域参数立体声及多声道编解码方法与系统
US8064624B2 (en) * 2007-07-19 2011-11-22 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Method and apparatus for generating a stereo signal with enhanced perceptual quality
JP5883561B2 (ja) * 2007-10-17 2016-03-15 フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー．ファオ アップミックスを使用した音声符号器
EP2209114B1 (en) * 2007-10-31 2014-05-14 Panasonic Corporation Speech coding/decoding apparatus/method
KR101381513B1 (ko) * 2008-07-14 2014-04-07 광운대학교 산학협력단 음성/음악 통합 신호의 부호화/복호화 장치
PT2146344T (pt) * 2008-07-17 2016-10-13 Fraunhofer Ges Forschung Esquema de codificação/descodificação de áudio com uma derivação comutável
WO2010042024A1 (en) 2008-10-10 2010-04-15 Telefonaktiebolaget Lm Ericsson (Publ) Energy conservative multi-channel audio coding
MX2011011399A (es) * 2008-10-17 2012-06-27 Univ Friedrich Alexander Er Aparato para suministrar uno o más parámetros ajustados para un suministro de una representación de señal de mezcla ascendente sobre la base de una representación de señal de mezcla descendete, decodificador de señal de audio, transcodificador de señal de audio, codificador de señal de audio, flujo de bits de audio, método y programa de computación que utiliza información paramétrica relacionada con el objeto.
EP2214161A1 (en) * 2009-01-28 2010-08-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method and computer program for upmixing a downmix audio signal
BR122019023947B1 (pt) * 2009-03-17 2021-04-06 Dolby International Ab Sistema codificador, sistema decodificador, método para codificar um sinal estéreo para um sinal de fluxo de bits e método para decodificar um sinal de fluxo de bits para um sinal estéreo
US20100324915A1 (en) * 2009-06-23 2010-12-23 Electronic And Telecommunications Research Institute Encoding and decoding apparatuses for high quality multi-channel audio codec
TWI433137B (zh) * 2009-09-10 2014-04-01 Dolby Int Ab 藉由使用參數立體聲改良調頻立體聲收音機之聲頻信號之設備與方法
KR101710113B1 (ko) * 2009-10-23 2017-02-27 삼성전자주식회사 위상 정보와 잔여 신호를 이용한 부호화／복호화 장치 및 방법
JP5604933B2 (ja) * 2010-03-30 2014-10-15 富士通株式会社 ダウンミクス装置およびダウンミクス方法
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
CN101894559B (zh) * 2010-08-05 2012-06-06 展讯通信（上海）有限公司 音频处理方法及其装置
ES2526320T3 (es) * 2010-08-24 2015-01-09 Dolby International Ab Ocultamiento de la recepción mono intermitente de receptores de radio estéreo de FM
US9026450B2 (en) 2011-03-09 2015-05-05 Dts Llc System for dynamically creating and rendering audio objects
CN103649706B (zh) 2011-03-16 2015-11-25 Dts（英属维尔京群岛）有限公司 三维音频音轨的编码及再现
US8654984B2 (en) * 2011-04-26 2014-02-18 Skype Processing stereophonic audio signals
UA107771C2 (en) * 2011-09-29 2015-02-10 Dolby Int Ab Prediction-based fm stereo radio noise reduction
IN2014CN03413A (https=) 2011-11-01 2015-07-03 Koninkl Philips Nv
TWI505262B (zh) * 2012-05-15 2015-10-21 Dolby Int Ab 具多重子流之多通道音頻信號的有效編碼與解碼
EP2862166B1 (en) 2012-06-14 2018-03-07 Dolby International AB Error concealment strategy in a decoding system
EP2862370B1 (en) 2012-06-19 2017-08-30 Dolby Laboratories Licensing Corporation Rendering and playback of spatial audio using channel-based audio systems
US9288603B2 (en) 2012-07-15 2016-03-15 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for backward-compatible audio coding
CN102737647A (zh) * 2012-07-23 2012-10-17 武汉大学 双声道音频音质增强编解码方法及装置
KR20190134821A (ko) 2013-04-05 2019-12-04 돌비 인터네셔널 에이비 스테레오 오디오 인코더 및 디코더
KR20140128564A (ko) * 2013-04-27 2014-11-06 인텔렉추얼디스커버리 주식회사 음상 정위를 위한 오디오 시스템 및 방법
WO2015036352A1 (en) 2013-09-12 2015-03-19 Dolby International Ab Coding of multichannel audio content
TWI671734B (zh) 2013-09-12 2019-09-11 瑞典商杜比國際公司 在包含三個音訊聲道的多聲道音訊系統中之解碼方法、編碼方法、解碼裝置及編碼裝置、包含用於執行解碼方法及編碼方法的指令之非暫態電腦可讀取的媒體之電腦程式產品、包含解碼裝置及編碼裝置的音訊系統
JP2018102075A (ja) * 2016-12-21 2018-06-28 トヨタ自動車株式会社 コイルの被膜剥離装置

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101036183A (zh) * 2004-11-02 2007-09-12 编码技术股份公司 立体声兼容的多声道音频编码
CN102708868A (zh) * 2006-01-20 2012-10-03 微软公司 使用扩展带频率编码的复变换信道编码
WO2008035949A1 (en) * 2006-09-22 2008-03-27 Samsung Electronics Co., Ltd. Method, medium, and system encoding and/or decoding audio signals by using bandwidth extension and stereo coding
WO2008046530A2 (en) * 2006-10-16 2008-04-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for multi -channel parameter transformation
CN101529501A (zh) * 2006-10-16 2009-09-09 杜比瑞典公司 多声道下混对象编码的增强编码和参数表示
EP2083584A1 (en) * 2008-01-23 2009-07-29 LG Electronics Inc. A method and an apparatus for processing an audio signal
EP2175670A1 (en) * 2008-10-07 2010-04-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Binaural rendering of a multi-channel audio signal
EP2360683A1 (en) * 2010-02-18 2011-08-24 Dolby Laboratories Licensing Corporation Audio decoder and decoding method using efficient downmixing
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
CN102884570A (zh) * 2010-04-09 2013-01-16 杜比国际公司 基于mdct的复数预测立体声编码

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
基于MIPS嵌入式系统的AC3音频解码处理;卫飞宇;《中国优秀硕士学位论文全文数据库》;20111215(第12期);全文 *

Also Published As

Publication number Publication date
US20160225375A1 (en) 2016-08-04
US20200265844A1 (en) 2020-08-20
JP2025163183A (ja) 2025-10-28
US10325607B2 (en) 2019-06-18
US11776552B2 (en) 2023-10-03
CN107134280A (zh) 2017-09-05
HK1218180A1 (zh) 2017-02-03
JP6978565B2 (ja) 2021-12-08
ES2641538T3 (es) 2017-11-10
CN107134280B (zh) 2020-10-23
CN110473560A (zh) 2019-11-19
US9899029B2 (en) 2018-02-20
JP6392353B2 (ja) 2018-09-19
CN117037811A (zh) 2023-11-10
JP2022010239A (ja) 2022-01-14
EP3561809B1 (en) 2023-11-22
US20190267012A1 (en) 2019-08-29
JP2018146975A (ja) 2018-09-20
US20220375481A1 (en) 2022-11-24
EP3044784A1 (en) 2016-07-20
EP4297026A2 (en) 2023-12-27
JP6759277B2 (ja) 2020-09-23
CN110473560B (zh) 2023-01-06
JP6644732B2 (ja) 2020-02-12
EP4297026A3 (en) 2024-03-06
JP2017167566A (ja) 2017-09-21
US9646619B2 (en) 2017-05-09
JP2020204778A (ja) 2020-12-24
CN117037810A (zh) 2023-11-10
US20170221489A1 (en) 2017-08-03
EP3293734B1 (en) 2019-05-15
CN110648674B (zh) 2023-09-22
JP7196268B2 (ja) 2022-12-26
US11410665B2 (en) 2022-08-09
US10593340B2 (en) 2020-03-17
CN105556597B (zh) 2019-10-29
EP3561809A1 (en) 2019-10-30
CN105556597A (zh) 2016-05-04
JP2016534410A (ja) 2016-11-04
US20180108364A1 (en) 2018-04-19
CN110648674A (zh) 2020-01-03
JP2023029374A (ja) 2023-03-03
EP3044784B1 (en) 2017-08-30
WO2015036352A1 (en) 2015-03-19
JP7726612B2 (ja) 2025-08-20
CN110634494A (zh) 2019-12-31
EP3293734A1 (en) 2018-03-14

Similar Documents

Publication Publication Date Title
JP7726612B2 (ja) マルチチャネル・オーディオ・コンテンツの符号化
HK40095860A (zh) 多声道音频内容的编码
HK40095861A (zh) 多声道音频内容的编码
HK1247429A1 (en) Decoding of multichannel audio content
HK1241132B (zh) 多声道音频内容的编码
HK40015507B (en) Coding of multichannel audio content
HK1247429B (en) Decoding of multichannel audio content
HK40015663A (en) Coding of multichannel audio content
HK40015507A (en) Coding of multichannel audio content
HK1218180B (zh) 多声道音频内容的编码和解码
HK40013187A (en) Coding of multichannel audio content
HK1241132A1 (en) Coding of multichannel audio content
HK40015663B (zh) 多声道音频内容的编码

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
REG Reference to a national code

Ref country code: HK

Ref legal event code: DE

Ref document number: 40015663

Country of ref document: HK

GR01 Patent grant
GR01 Patent grant