[go: up one dir, main page]

MX2010004220A - Codificacion de audio usando mezcla descendente. - Google Patents

Codificacion de audio usando mezcla descendente.

Info

Publication number
MX2010004220A
MX2010004220A MX2010004220A MX2010004220A MX2010004220A MX 2010004220 A MX2010004220 A MX 2010004220A MX 2010004220 A MX2010004220 A MX 2010004220A MX 2010004220 A MX2010004220 A MX 2010004220A MX 2010004220 A MX2010004220 A MX 2010004220A
Authority
MX
Mexico
Prior art keywords
signal
audio
type
audio signal
downmix
Prior art date
Application number
MX2010004220A
Other languages
English (en)
Inventor
Juergen Herre
Johannes Hilpert
Andreas Hoelzer
Oliver Hellmuth
Leonid Terentiev
Cornelia Falch
Original Assignee
Fraunhofer Ges Forschung
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=40149576&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MX2010004220(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of MX2010004220A publication Critical patent/MX2010004220A/es

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
    • G10L19/008—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
    • G10L19/04—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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
    • 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
    • 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
    • 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
    • H04S2420/07—Synergistic effects of band splitting and sub-band processing

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Se describe un descodificador de audio para descodificar una señal de multi-audio-objeto que tiene una señal de audio de un primer tipo y una señal de audio de un segundo tipo codificada en la misma, la señal de multi-audio-objeto consiste de una señal de mezcla descendente (56) e información lateral (58), la información lateral comprende información de nivel (60) de la señal de audio del primer tipo y la señal de audio del segundo tipo en una primera resolución de tiempo/frecuencia predeterminada (42) y una señal residual (62) que especifica valores de nivel residual en una segunda resolución de tiempo/frecuencia predeterminada, el descodificador de audio comprende medios (52) para calcular coeficientes de predicción (64) en base a la información de nivel (60) y medios (54) para mezclar ascendentemente la señal de mezcla descendente (56) en base a los coeficientes de predicción (64) y la señal residual (62) para obtener una primera señal de audio de mezcla ascendente que se aproxima a la señal de audio del primer tipo y/o una segunda señal de audio de mezcla ascendente que se aproxima a la señal de audio del segundo tipo.
MX2010004220A 2007-10-17 2008-10-17 Codificacion de audio usando mezcla descendente. MX2010004220A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US98057107P 2007-10-17 2007-10-17
US99133507P 2007-11-30 2007-11-30
PCT/EP2008/008799 WO2009049895A1 (en) 2007-10-17 2008-10-17 Audio coding using downmix

Publications (1)

Publication Number Publication Date
MX2010004220A true MX2010004220A (es) 2010-06-11

Family

ID=40149576

Family Applications (2)

Application Number Title Priority Date Filing Date
MX2010004220A MX2010004220A (es) 2007-10-17 2008-10-17 Codificacion de audio usando mezcla descendente.
MX2010004138A MX2010004138A (es) 2007-10-17 2008-10-17 Codificacion de audio usando conversion de estereo a multicanal.

Family Applications After (1)

Application Number Title Priority Date Filing Date
MX2010004138A MX2010004138A (es) 2007-10-17 2008-10-17 Codificacion de audio usando conversion de estereo a multicanal.

Country Status (12)

Country Link
US (4) US8280744B2 (es)
EP (2) EP2082396A1 (es)
JP (2) JP5883561B2 (es)
KR (4) KR101303441B1 (es)
CN (2) CN101849257B (es)
AU (2) AU2008314030B2 (es)
BR (2) BRPI0816557B1 (es)
CA (2) CA2701457C (es)
MX (2) MX2010004220A (es)
RU (2) RU2452043C2 (es)
TW (2) TWI395204B (es)
WO (2) WO2009049895A1 (es)

Families Citing this family (118)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0400998D0 (sv) 2004-04-16 2004-04-16 Cooding Technologies Sweden Ab Method for representing multi-channel audio signals
JP5173839B2 (ja) * 2006-02-07 2013-04-03 エルジー エレクトロニクス インコーポレイティド 符号化／復号化装置及び方法
US8571875B2 (en) * 2006-10-18 2013-10-29 Samsung Electronics Co., Ltd. Method, medium, and apparatus encoding and/or decoding multichannel audio signals
JP5139440B2 (ja) * 2006-11-24 2013-02-06 エルジー エレクトロニクス インコーポレイティド オブジェクトベースオーディオ信号の符号化及び復号化方法並びにその装置
MX2008013073A (es) 2007-02-14 2008-10-27 Lg Electronics Inc Metodos y aparatos para codificar y decodificar señales de audio basadas en objeto.
EP2130304A4 (en) 2007-03-16 2012-04-04 Lg Electronics Inc METHOD AND DEVICE FOR PROCESSING AN AUDIO SIGNAL
EP3712888B1 (en) * 2007-03-30 2024-05-08 Electronics and Telecommunications Research Institute Apparatus and method for coding and decoding multi object audio signal with multi channel
RU2452043C2 (ru) * 2007-10-17 2012-05-27 Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. Аудиокодирование с использованием понижающего микширования
WO2009054665A1 (en) * 2007-10-22 2009-04-30 Electronics And Telecommunications Research Institute Multi-object audio encoding and decoding method and apparatus thereof
KR101461685B1 (ko) * 2008-03-31 2014-11-19 한국전자통신연구원 다객체 오디오 신호의 부가정보 비트스트림 생성 방법 및 장치
KR101614160B1 (ko) 2008-07-16 2016-04-20 한국전자통신연구원 포스트 다운믹스 신호를 지원하는 다객체 오디오 부호화 장치 및 복호화 장치
JP5608660B2 (ja) * 2008-10-10 2014-10-15 テレフオンアクチーボラゲット エル エム エリクソン（パブル） エネルギ保存型マルチチャネルオーディオ符号化
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.
EP2194526A1 (en) 2008-12-05 2010-06-09 Lg Electronics Inc. A method and apparatus for processing an audio signal
US8620008B2 (en) 2009-01-20 2013-12-31 Lg Electronics Inc. Method and an apparatus for processing an audio signal
US8255821B2 (en) * 2009-01-28 2012-08-28 Lg Electronics Inc. Method and an apparatus for decoding an audio signal
JP5163545B2 (ja) * 2009-03-05 2013-03-13 富士通株式会社 オーディオ復号装置及びオーディオ復号方法
KR101387902B1 (ko) * 2009-06-10 2014-04-22 한국전자통신연구원 다객체 오디오 신호를 부호화하는 방법 및 부호화 장치, 복호화 방법 및 복호화 장치, 그리고 트랜스코딩 방법 및 트랜스코더
CN101930738B (zh) * 2009-06-18 2012-05-23 晨星软件研发(深圳)有限公司 多声道音频信号译码方法与装置
KR101283783B1 (ko) * 2009-06-23 2013-07-08 한국전자통신연구원 고품질 다채널 오디오 부호화 및 복호화 장치
US20100324915A1 (en) * 2009-06-23 2010-12-23 Electronic And Telecommunications Research Institute Encoding and decoding apparatuses for high quality multi-channel audio codec
CN103489449B (zh) * 2009-06-24 2017-04-12 弗劳恩霍夫应用研究促进协会 音频信号译码器、提供上混信号表示型态的方法
KR20110018107A (ko) * 2009-08-17 2011-02-23 삼성전자주식회사 레지듀얼 신호 인코딩 및 디코딩 방법 및 장치
WO2011039195A1 (en) 2009-09-29 2011-04-07 Fraunhofer-Gesellschaft zur Förderung 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
KR101710113B1 (ko) * 2009-10-23 2017-02-27 삼성전자주식회사 위상 정보와 잔여 신호를 이용한 부호화／복호화 장치 및 방법
KR20110049068A (ko) * 2009-11-04 2011-05-12 삼성전자주식회사 멀티 채널 오디오 신호의 부호화/복호화 장치 및 방법
CN102714038B (zh) * 2009-11-20 2014-11-05 弗兰霍菲尔运输应用研究公司 用以基于下混信号表示型态而提供上混信号表示型态的装置、用以提供表示多声道音频信号的位流的装置、方法
MX2012006823A (es) * 2009-12-16 2012-07-23 Dolby Int Ab Mezcla descendente de parametros de corriente de bits sbr.
EP2522016A4 (en) * 2010-01-06 2015-04-22 Lg Electronics Inc DEVICE FOR PROCESSING AN AUDIO SIGNAL AND METHOD THEREFOR
EP2372704A1 (en) * 2010-03-11 2011-10-05 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Signal processor and method for processing a signal
BR112012025863B1 (pt) 2010-04-09 2020-11-17 Dolby International Ab sistema decodificador e método de decodificação para codificação estéreo por predição complexa baseada em mdct
US8948403B2 (en) * 2010-08-06 2015-02-03 Samsung Electronics Co., Ltd. Method of processing signal, encoding apparatus thereof, decoding apparatus thereof, and signal processing system
KR101756838B1 (ko) * 2010-10-13 2017-07-11 삼성전자주식회사 다채널 오디오 신호를 다운 믹스하는 방법 및 장치
US20120095729A1 (en) * 2010-10-14 2012-04-19 Electronics And Telecommunications Research Institute Known information compression apparatus and method for separating sound source
CN103503063B (zh) * 2011-03-10 2015-12-09 瑞典爱立信有限公司 填充变换编码音频信号中的非编码子向量
TWI573131B (zh) * 2011-03-16 2017-03-01 Ｄｔｓ股份有限公司 用以編碼或解碼音訊聲軌之方法、音訊編碼處理器及音訊解碼處理器
EP2523472A1 (en) 2011-05-13 2012-11-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method and computer program for generating a stereo output signal for providing additional output channels
TWI576829B (zh) 2011-05-13 2017-04-01 三星電子股份有限公司 位元配置裝置
WO2012158705A1 (en) * 2011-05-19 2012-11-22 Dolby Laboratories Licensing Corporation Adaptive audio processing based on forensic detection of media processing history
JP5715514B2 (ja) * 2011-07-04 2015-05-07 日本放送協会 オーディオ信号ミキシング装置およびそのプログラム、ならびに、オーディオ信号復元装置およびそのプログラム
EP2560161A1 (en) 2011-08-17 2013-02-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Optimal mixing matrices and usage of decorrelators in spatial audio processing
CN103050124B (zh) 2011-10-13 2016-03-30 华为终端有限公司 混音方法、装置及系统
BR112014010062B1 (pt) 2011-11-01 2021-12-14 Koninklijke Philips N.V. Codificador de objeto de áudio, decodificador de objeto de áudio, método para a codificação de objeto de áudio, e método para a decodificação de objeto de áudio
BR112013026452B1 (pt) * 2012-01-20 2021-02-17 Fraunhofer-Gellschaft Zur Förderung Der Angewandten Forschung E.V. aparelho e método para codificação e decodificação de áudio empregando substituição sinusoidal
US9674587B2 (en) * 2012-06-26 2017-06-06 Sonos, Inc. Systems and methods for networked music playback including remote add to queue
BR112014004129A2 (pt) * 2012-07-02 2017-06-13 Sony Corp dispositivos e métodos de decodificação e de codificação, e, programa
CN104428835B (zh) * 2012-07-09 2017-10-31 皇家飞利浦有限公司 音频信号的编码和解码
US9190065B2 (en) 2012-07-15 2015-11-17 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for three-dimensional audio coding using basis function coefficients
US9761229B2 (en) 2012-07-20 2017-09-12 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for audio object clustering
US9516446B2 (en) 2012-07-20 2016-12-06 Qualcomm Incorporated Scalable downmix design for object-based surround codec with cluster analysis by synthesis
JP5949270B2 (ja) * 2012-07-24 2016-07-06 富士通株式会社 オーディオ復号装置、オーディオ復号方法、オーディオ復号用コンピュータプログラム
US9564138B2 (en) 2012-07-31 2017-02-07 Intellectual Discovery Co., Ltd. Method and device for processing audio signal
EP2883366B8 (en) * 2012-08-07 2016-12-14 Dolby Laboratories Licensing Corporation Encoding and rendering of object based audio indicative of game audio content
US9489954B2 (en) 2012-08-07 2016-11-08 Dolby Laboratories Licensing Corporation Encoding and rendering of object based audio indicative of game audio content
RU2628900C2 (ru) * 2012-08-10 2017-08-22 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Кодер, декодер, система и способ, использующие концепцию остатка для параметрического кодирования аудиобъектов
KR20140027831A (ko) * 2012-08-27 2014-03-07 삼성전자주식회사 오디오 신호 전송 장치 및 그의 오디오 신호 전송 방법, 그리고 오디오 신호 수신 장치 및 그의 오디오 소스 추출 방법
EP2717261A1 (en) * 2012-10-05 2014-04-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encoder, decoder and methods for backward compatible multi-resolution spatial-audio-object-coding
KR20140046980A (ko) 2012-10-11 2014-04-21 한국전자통신연구원 오디오 데이터 생성 장치 및 방법, 오디오 데이터 재생 장치 및 방법
EP2936485B1 (en) * 2012-12-21 2017-01-04 Dolby Laboratories Licensing Corporation Object clustering for rendering object-based audio content based on perceptual criteria
HUE032831T2 (en) * 2013-01-08 2017-11-28 Dolby Int Ab Model-based prediction in a critically sampled filter block
EP2757559A1 (en) * 2013-01-22 2014-07-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for spatial audio object coding employing hidden objects for signal mixture manipulation
US9786286B2 (en) 2013-03-29 2017-10-10 Dolby Laboratories Licensing Corporation Methods and apparatuses for generating and using low-resolution preview tracks with high-quality encoded object and multichannel audio signals
EP2804176A1 (en) * 2013-05-13 2014-11-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio object separation from mixture signal using object-specific time/frequency resolutions
CN105393304B (zh) 2013-05-24 2019-05-28 杜比国际公司 音频编码和解码方法、介质以及音频编码器和解码器
EP3312835B1 (en) * 2013-05-24 2020-05-13 Dolby International AB Efficient coding of audio scenes comprising audio objects
CN105247611B (zh) 2013-05-24 2019-02-15 杜比国际公司 对音频场景的编码
ES2640815T3 (es) 2013-05-24 2017-11-06 Dolby International Ab Codificación eficiente de escenas de audio que comprenden objetos de audio
EP3270375B1 (en) 2013-05-24 2020-01-15 Dolby International AB Reconstruction of audio scenes from a downmix
EP2830333A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Multi-channel decorrelator, multi-channel audio decoder, multi-channel audio encoder, methods and computer program using a premix of decorrelator input signals
EP2830052A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio decoder, audio encoder, method for providing at least four audio channel signals on the basis of an encoded representation, method for providing an encoded representation on the basis of at least four audio channel signals and computer program using a bandwidth extension
EP2830048A1 (en) * 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for realizing a SAOC downmix of 3D audio content
WO2015011015A1 (en) 2013-07-22 2015-01-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Multi-channel audio decoder, multi-channel audio encoder, methods, computer program and encoded audio representation using a decorrelation of rendered audio 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
EP2830045A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Concept for audio encoding and decoding for audio channels and audio objects
EP2830049A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for efficient object metadata coding
US9812150B2 (en) 2013-08-28 2017-11-07 Accusonus, Inc. Methods and systems for improved signal decomposition
TWI713018B (zh) 2013-09-12 2020-12-11 瑞典商杜比國際公司 多聲道音訊系統中之解碼方法、解碼裝置、包含用於執行解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、包含解碼裝置的音訊系統
CN110634494B (zh) * 2013-09-12 2023-09-01 杜比国际公司 多声道音频内容的编码
CN105531761B (zh) * 2013-09-12 2019-04-30 杜比国际公司 音频解码系统和音频编码系统
EP2854133A1 (en) 2013-09-27 2015-04-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Generation of a downmix signal
US20160269847A1 (en) * 2013-10-02 2016-09-15 Stormingswiss Gmbh Method and apparatus for downmixing a multichannel signal and for upmixing a downmix signal
CN105593932B (zh) * 2013-10-09 2019-11-22 索尼公司 编码设备和方法、解码设备和方法、以及程序
KR102381216B1 (ko) * 2013-10-21 2022-04-08 돌비 인터네셔널 에이비 오디오 신호들의 파라메트릭 재구성
EP2866227A1 (en) * 2013-10-22 2015-04-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for decoding and encoding a downmix matrix, method for presenting audio content, encoder and decoder for a downmix matrix, audio encoder and audio decoder
US10492014B2 (en) 2014-01-09 2019-11-26 Dolby Laboratories Licensing Corporation Spatial error metrics of audio content
US20150264505A1 (en) 2014-03-13 2015-09-17 Accusonus S.A. Wireless exchange of data between devices in live events
US10468036B2 (en) * 2014-04-30 2019-11-05 Accusonus, Inc. Methods and systems for processing and mixing signals using signal decomposition
EP3127109B1 (en) 2014-04-01 2018-03-14 Dolby International AB Efficient coding of audio scenes comprising audio objects
CN110992964B (zh) * 2014-07-01 2023-10-13 韩国电子通信研究院 处理多信道音频信号的方法和装置
CN106576204B (zh) * 2014-07-03 2019-08-20 杜比实验室特许公司 声场的辅助增大
US9774974B2 (en) * 2014-09-24 2017-09-26 Electronics And Telecommunications Research Institute Audio metadata providing apparatus and method, and multichannel audio data playback apparatus and method to support dynamic format conversion
UA120372C2 (uk) * 2014-10-02 2019-11-25 Долбі Інтернешнл Аб Спосіб декодування і декодер для посилення діалогу
TWI587286B (zh) * 2014-10-31 2017-06-11 杜比國際公司 音頻訊號之解碼和編碼的方法及系統、電腦程式產品、與電腦可讀取媒體
BR112017008015B1 (pt) * 2014-10-31 2023-11-14 Dolby International Ab Métodos e sistemas de decodificação e codificação de áudio
CN105989851B (zh) 2015-02-15 2021-05-07 杜比实验室特许公司 音频源分离
EP3067885A1 (en) 2015-03-09 2016-09-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for encoding or decoding a multi-channel signal
WO2016168408A1 (en) 2015-04-17 2016-10-20 Dolby Laboratories Licensing Corporation Audio encoding and rendering with discontinuity compensation
WO2017049400A1 (en) * 2015-09-25 2017-03-30 Voiceage Corporation Method and system for encoding left and right channels of a stereo sound signal selecting between two and four sub-frames models depending on the bit budget
US12125492B2 (en) 2015-09-25 2024-10-22 Voiceage Coproration Method and system for decoding left and right channels of a stereo sound signal
ES2830954T3 (es) * 2016-11-08 2021-06-07 Fraunhofer Ges Forschung Mezclador descendente y método para la mezcla descendente de al menos dos canales y codificador multicanal y decodificador multicanal
EP3324406A1 (en) 2016-11-17 2018-05-23 Fraunhofer Gesellschaft zur Förderung der Angewand Apparatus and method for decomposing an audio signal using a variable threshold
EP3324407A1 (en) 2016-11-17 2018-05-23 Fraunhofer Gesellschaft zur Förderung der Angewand Apparatus and method for decomposing an audio signal using a ratio as a separation characteristic
US11595774B2 (en) * 2017-05-12 2023-02-28 Microsoft Technology Licensing, Llc Spatializing audio data based on analysis of incoming audio data
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
CN109451194B (zh) * 2018-09-28 2020-11-24 武汉船舶通信研究所（中国船舶重工集团公司第七二二研究所） 一种会议混音方法及装置
EP3874491B1 (en) * 2018-11-02 2024-05-01 Dolby International AB Audio encoder and audio decoder
JP7092047B2 (ja) * 2019-01-17 2022-06-28 日本電信電話株式会社 符号化復号方法、復号方法、これらの装置及びプログラム
US10779105B1 (en) 2019-05-31 2020-09-15 Apple Inc. Sending notification and multi-channel audio over channel limited link for independent gain control
CA3143408C (en) 2019-06-14 2025-10-07 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. PARAMETER ENCODING AND DECODING
GB2587614A (en) 2019-09-26 2021-04-07 Nokia Technologies Oy Audio encoding and audio decoding
CN110739000B (zh) * 2019-10-14 2022-02-01 武汉大学 一种适应于个性化交互系统的音频对象编码方法
WO2021232376A1 (zh) 2020-05-21 2021-11-25 华为技术有限公司 一种音频数据传输方法及相关装置
HUE071538T2 (hu) * 2020-06-11 2025-09-28 Dolby Laboratories Licensing Corp Eljárások és eszközök térbeli háttérzaj kódolására és dekódolására egy többcsatornás bemeneti jelben
WO2021252748A1 (en) 2020-06-11 2021-12-16 Dolby Laboratories Licensing Corporation Encoding of multi-channel audio signals comprising downmixing of a primary and two or more scaled non-primary input channels
WO2022074201A2 (en) 2020-10-09 2022-04-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method, or computer program for processing an encoded audio scene using a bandwidth extension
EP4226367A2 (en) 2020-10-09 2023-08-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method, or computer program for processing an encoded audio scene using a parameter smoothing
JP7521596B2 (ja) * 2020-11-05 2024-07-24 日本電信電話株式会社 音信号精製方法、音信号復号方法、これらの装置、プログラム及び記録媒体
KR20230116895A (ko) * 2020-12-02 2023-08-04 돌비 레버러토리즈 라이쎈싱 코오포레이션 적응적 다운믹스 전략을 통한 몰입형 음성 및 오디오서비스(ivas)

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19549621B4 (de) 1995-10-06 2004-07-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung zum Codieren von Audiosignalen
US5912976A (en) * 1996-11-07 1999-06-15 Srs Labs, Inc. Multi-channel audio enhancement system for use in recording and playback and methods for providing same
US6356639B1 (en) * 1997-04-11 2002-03-12 Matsushita Electric Industrial Co., Ltd. Audio decoding apparatus, signal processing device, sound image localization device, sound image control method, audio signal processing device, and audio signal high-rate reproduction method used for audio visual equipment
US6016473A (en) 1998-04-07 2000-01-18 Dolby; Ray M. Low bit-rate spatial coding method and system
AU781629B2 (en) * 1999-04-07 2005-06-02 Dolby Laboratories Licensing Corporation Matrix improvements to lossless encoding and decoding
EP1375614A4 (en) 2001-03-28 2004-06-16 Mitsubishi Chem Corp METHOD FOR COATING WITH RADIATION-CURABLE RESIN COMPOSITION AND LAMINATES
DE10163827A1 (de) 2001-12-22 2003-07-03 Degussa Strahlen härtbare Pulverlackzusammensetzungen und deren Verwendung
BRPI0304540B1 (pt) * 2002-04-22 2017-12-12 Koninklijke Philips N. V Methods for coding an audio signal, and to decode an coded audio sign, encoder to codify an audio signal, codified audio sign, storage media, and, decoder to decode a coded audio sign
US7395210B2 (en) * 2002-11-21 2008-07-01 Microsoft Corporation Progressive to lossless embedded audio coder (PLEAC) with multiple factorization reversible transform
EP1576602A4 (en) 2002-12-28 2008-05-28 Samsung Electronics Co Ltd METHOD AND DEVICE FOR MIXING AN AUDIOSTROME AND INFORMATION STORAGE MEDIUM
DE10328777A1 (de) * 2003-06-25 2005-01-27 Coding Technologies Ab Vorrichtung und Verfahren zum Codieren eines Audiosignals und Vorrichtung und Verfahren zum Decodieren eines codierten Audiosignals
US20050058307A1 (en) * 2003-07-12 2005-03-17 Samsung Electronics Co., Ltd. Method and apparatus for constructing audio stream for mixing, and information storage medium
ATE527654T1 (de) * 2004-03-01 2011-10-15 Dolby Lab Licensing Corp Mehrkanal-audiodecodierung
JP2005352396A (ja) * 2004-06-14 2005-12-22 Matsushita Electric Ind Co Ltd 音響信号符号化装置および音響信号復号装置
US7317601B2 (en) 2004-07-29 2008-01-08 United Microelectronics Corp. Electrostatic discharge protection device and circuit thereof
SE0402652D0 (sv) * 2004-11-02 2004-11-02 Coding Tech Ab Methods for improved performance of prediction based multi- channel reconstruction
SE0402651D0 (sv) * 2004-11-02 2004-11-02 Coding Tech Ab Advanced methods for interpolation and parameter signalling
KR100682904B1 (ko) * 2004-12-01 2007-02-15 삼성전자주식회사 공간 정보를 이용한 다채널 오디오 신호 처리 장치 및 방법
JP2006197391A (ja) * 2005-01-14 2006-07-27 Toshiba Corp 音声ミクシング処理装置及び音声ミクシング処理方法
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
ES2347274T3 (es) * 2005-03-30 2010-10-27 Koninklijke Philips Electronics N.V. Codificacion de audio multicanal ajustable a escala.
US7751572B2 (en) 2005-04-15 2010-07-06 Dolby International Ab Adaptive residual audio coding
JP4988717B2 (ja) * 2005-05-26 2012-08-01 エルジー エレクトロニクス インコーポレイティド オーディオ信号のデコーディング方法及び装置
US7539612B2 (en) * 2005-07-15 2009-05-26 Microsoft Corporation Coding and decoding scale factor information
KR20080010980A (ko) * 2006-07-28 2008-01-31 엘지전자 주식회사 부호화/복호화 방법 및 장치.
CN103366747B (zh) 2006-02-03 2017-05-17 韩国电子通信研究院 用于控制音频信号的渲染的设备和方法
ATE527833T1 (de) 2006-05-04 2011-10-15 Lg Electronics Inc Verbesserung von stereo-audiosignalen mittels neuabmischung
BRPI0711102A2 (pt) * 2006-09-29 2011-08-23 Lg Eletronics Inc métodos e aparelhos para codificar e decodificar sinais de áudio com base em objeto
US8687829B2 (en) * 2006-10-16 2014-04-01 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for multi-channel parameter transformation
US9565509B2 (en) * 2006-10-16 2017-02-07 Dolby International Ab Enhanced coding and parameter representation of multichannel downmixed object coding
RU2452043C2 (ru) * 2007-10-17 2012-05-27 Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. Аудиокодирование с использованием понижающего микширования

Also Published As

Publication number Publication date
KR101244515B1 (ko) 2013-03-18
TWI395204B (zh) 2013-05-01
AU2008314029B2 (en) 2012-02-09
US8407060B2 (en) 2013-03-26
AU2008314030B2 (en) 2011-05-19
US8280744B2 (en) 2012-10-02
KR101244545B1 (ko) 2013-03-18
CN101821799B (zh) 2012-11-07
KR20120004547A (ko) 2012-01-12
RU2474887C2 (ru) 2013-02-10
EP2076900A1 (en) 2009-07-08
US8538766B2 (en) 2013-09-17
AU2008314030A1 (en) 2009-04-23
CA2702986A1 (en) 2009-04-23
BRPI0816557A2 (pt) 2016-03-01
CA2702986C (en) 2016-08-16
CN101849257A (zh) 2010-09-29
WO2009049896A1 (en) 2009-04-23
TW200926147A (en) 2009-06-16
JP2011501544A (ja) 2011-01-06
TW200926143A (en) 2009-06-16
WO2009049896A8 (en) 2010-05-27
KR20100063119A (ko) 2010-06-10
WO2009049896A9 (en) 2011-06-09
WO2009049895A1 (en) 2009-04-23
JP5883561B2 (ja) 2016-03-15
EP2082396A1 (en) 2009-07-29
JP5260665B2 (ja) 2013-08-14
WO2009049895A9 (en) 2009-10-29
RU2010114875A (ru) 2011-11-27
US20120213376A1 (en) 2012-08-23
RU2452043C2 (ru) 2012-05-27
CN101849257B (zh) 2016-03-30
US8155971B2 (en) 2012-04-10
KR20120004546A (ko) 2012-01-12
US20090125314A1 (en) 2009-05-14
BRPI0816556A2 (pt) 2019-03-06
RU2010112889A (ru) 2011-11-27
TWI406267B (zh) 2013-08-21
US20130138446A1 (en) 2013-05-30
JP2011501823A (ja) 2011-01-13
AU2008314029A1 (en) 2009-04-23
KR101303441B1 (ko) 2013-09-10
BRPI0816557B1 (pt) 2020-02-18
CA2701457A1 (en) 2009-04-23
US20090125313A1 (en) 2009-05-14
KR20100063120A (ko) 2010-06-10
KR101290394B1 (ko) 2013-07-26
MX2010004138A (es) 2010-04-30
CA2701457C (en) 2016-05-17
CN101821799A (zh) 2010-09-01

Similar Documents

Publication Publication Date Title
MX2010004220A (es) Codificacion de audio usando mezcla descendente.
MX2011011399A (es) 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.
US20060190247A1 (en) Near-transparent or transparent multi-channel encoder/decoder scheme
MY178139A (en) Audio decoder and method for providing a decoded audio information using an errorconcealment based on a time domain excitation signal
WO2008016935A3 (en) Systems, methods, and apparatus for wideband encoding and decoding of inactive frames
ATE406651T1 (de) Audiokodierung und audiodekodierung
RU2010152580A (ru) Устройство параметрического стереофонического повышающего микширования, параметрический стереофонический декодер, устройство параметрического стереофонического понижающего микширования, параметрический стереофонический кодер
EP4583541A3 (en) Methods, apparatus and systems for a pre-rendered signal for audio rendering
DE602006015294D1 (de) Mehrkanal-audiocodierung
TW200738038A (en) Audio encoding and decoding
ATE416455T1 (de) Verfahren und vorrichtung zum kodieren und dekodieren von mehrkanaltonsignalen
WO2008084427A3 (en) Audio decoder
RU2010147691A (ru) Способ кодирования и устройство для декодирования основывающегося на объектах аудиосигнала
MY152845A (en) Method and device for coding transition frames in speech signals
TW200746052A (en) Apparatus and method for encoding and decoding signal
MY184847A (en) Audio encoder, audio decoder and related methods using two-channel processing within an intelligent gap filling framework
RU2007142177A (ru) Адаптивное остаточное аудиокодирование
EP4365894A3 (en) Multi-channel signal encoding method, multi-channel signal decoding method, encoder, and decoder
JP2011522472A5 (es)
WO2011059254A3 (en) An apparatus for processing a signal and method thereof
ATE393951T1 (de) Stereokompatible mehrkanal-audiokodierung
WO2008016945A3 (en) Systems and methods for modifying a window with a frame associated with an audio signal
MY175460A (en) Audio decoder and method for providing a decoded audio information using an error concealment modifying a time domain excitation signal
WO2010008185A3 (en) Method and apparatus to encode and decode an audio/speech signal
WO2008052007A3 (en) Signalling of maximum dynamic range of inverse discrete cosine transform

Legal Events

Date Code Title Description
FG Grant or registration