HK1101848A1 - Scheme for generating a parametric representation for low-bit rate applications - Google Patents

Scheme for generating a parametric representation for low-bit rate applications

Info

Publication number
HK1101848A1
HK1101848A1 HK07107843.7A HK07107843A HK1101848A1 HK 1101848 A1 HK1101848 A1 HK 1101848A1 HK 07107843 A HK07107843 A HK 07107843A HK 1101848 A1 HK1101848 A1 HK 1101848A1
Authority
HK
Hong Kong
Prior art keywords
generating
low
bit rate
parameter information
parametric representation
Prior art date
Application number
HK07107843.7A
Other languages
English (en)
Inventor
Fredrik Henn
Jonas Roden
Original Assignee
Dolby Int 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 Int Ab filed Critical Dolby Int Ab
Publication of HK1101848A1 publication Critical patent/HK1101848A1/xx

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
HK07107843.7A 2004-04-16 2007-07-20 Scheme for generating a parametric representation for low-bit rate applications HK1101848A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0400997A SE0400997D0 (sv) 2004-04-16 2004-04-16 Efficient coding of multi-channel audio
PCT/EP2005/003950 WO2005101905A1 (en) 2004-04-16 2005-04-14 Scheme for generating a parametric representation for low-bit rate applications

Publications (1)

Publication Number Publication Date
HK1101848A1 true HK1101848A1 (en) 2007-10-26

Family

ID=32294333

Family Applications (1)

Application Number Title Priority Date Filing Date
HK07107843.7A HK1101848A1 (en) 2004-04-16 2007-07-20 Scheme for generating a parametric representation for low-bit rate applications

Country Status (8)

Country Link
US (1) US8194861B2 (xx)
EP (1) EP1745676B1 (xx)
JP (2) JP4688867B2 (xx)
KR (1) KR100855561B1 (xx)
CN (1) CN1957640B (xx)
HK (1) HK1101848A1 (xx)
SE (1) SE0400997D0 (xx)
WO (1) WO2005101905A1 (xx)

Families Citing this family (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7240001B2 (en) * 2001-12-14 2007-07-03 Microsoft Corporation Quality improvement techniques in an audio encoder
US7460990B2 (en) 2004-01-23 2008-12-02 Microsoft Corporation Efficient coding of digital media spectral data using wide-sense perceptual similarity
EP1779385B1 (en) * 2004-07-09 2010-09-22 Electronics and Telecommunications Research Institute Method and apparatus for encoding and decoding multi-channel audio signal using virtual source location information
KR100663729B1 (ko) 2004-07-09 2007-01-02 한국전자통신연구원 가상 음원 위치 정보를 이용한 멀티채널 오디오 신호부호화 및 복호화 방법 및 장치
EP1691348A1 (en) * 2005-02-14 2006-08-16 Ecole Polytechnique Federale De Lausanne Parametric joint-coding of audio sources
US7630882B2 (en) * 2005-07-15 2009-12-08 Microsoft Corporation Frequency segmentation to obtain bands for efficient coding of digital media
US7562021B2 (en) * 2005-07-15 2009-07-14 Microsoft Corporation Modification of codewords in dictionary used for efficient coding of digital media spectral data
KR100803212B1 (ko) * 2006-01-11 2008-02-14 삼성전자주식회사 스케일러블 채널 복호화 방법 및 장치
DE102006017280A1 (de) 2006-04-12 2007-10-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Erzeugen eines Umgebungssignals
US7876904B2 (en) * 2006-07-08 2011-01-25 Nokia Corporation Dynamic decoding of binaural audio signals
JP4946305B2 (ja) * 2006-09-22 2012-06-06 ソニー株式会社 音響再生システム、音響再生装置および音響再生方法
EP2102858A4 (en) * 2006-12-07 2010-01-20 Lg Electronics Inc METHOD AND DEVICE FOR PROCESSING AN AUDIO SIGNAL
KR100735891B1 (ko) * 2006-12-22 2007-07-04 주식회사 대원콘보이 차량용 오디오 믹서장치
US8200351B2 (en) * 2007-01-05 2012-06-12 STMicroelectronics Asia PTE., Ltd. Low power downmix energy equalization in parametric stereo encoders
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
US20080232601A1 (en) * 2007-03-21 2008-09-25 Ville Pulkki Method and apparatus for enhancement of audio reconstruction
US9015051B2 (en) 2007-03-21 2015-04-21 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Reconstruction of audio channels with direction parameters indicating direction of origin
US8908873B2 (en) 2007-03-21 2014-12-09 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Method and apparatus for conversion between multi-channel audio formats
US8612237B2 (en) * 2007-04-04 2013-12-17 Apple Inc. Method and apparatus for determining audio spatial quality
DE602007007581D1 (de) * 2007-04-17 2010-08-19 Harman Becker Automotive Sys Akustische Lokalisierung eines Sprechers
US7761290B2 (en) 2007-06-15 2010-07-20 Microsoft Corporation Flexible frequency and time partitioning in perceptual transform coding of audio
US8046214B2 (en) 2007-06-22 2011-10-25 Microsoft Corporation Low complexity decoder for complex transform coding of multi-channel sound
US7885819B2 (en) 2007-06-29 2011-02-08 Microsoft Corporation Bitstream syntax for multi-process audio decoding
DE102007048973B4 (de) * 2007-10-12 2010-11-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Erzeugen eines Multikanalsignals mit einer Sprachsignalverarbeitung
US8249883B2 (en) * 2007-10-26 2012-08-21 Microsoft Corporation Channel extension coding for multi-channel source
US8204235B2 (en) * 2007-11-30 2012-06-19 Pioneer Corporation Center channel positioning apparatus
KR101439205B1 (ko) * 2007-12-21 2014-09-11 삼성전자주식회사 오디오 매트릭스 인코딩 및 디코딩 방법 및 장치
US9111525B1 (en) * 2008-02-14 2015-08-18 Foundation for Research and Technology—Hellas (FORTH) Institute of Computer Science (ICS) Apparatuses, methods and systems for audio processing and transmission
US8386267B2 (en) * 2008-03-19 2013-02-26 Panasonic Corporation Stereo signal encoding device, stereo signal decoding device and methods for them
WO2009128663A2 (en) * 2008-04-16 2009-10-22 Lg Electronics Inc. A method and an apparatus for processing an audio signal
KR101061128B1 (ko) * 2008-04-16 2011-08-31 엘지전자 주식회사 오디오 신호 처리 방법 및 이의 장치
WO2009128662A2 (en) * 2008-04-16 2009-10-22 Lg Electronics Inc. A method and an apparatus for processing an audio signal
KR101428487B1 (ko) * 2008-07-11 2014-08-08 삼성전자주식회사 멀티 채널 부호화 및 복호화 방법 및 장치
KR101171314B1 (ko) 2008-07-15 2012-08-10 엘지전자 주식회사 오디오 신호의 처리 방법 및 이의 장치
CN102099854B (zh) * 2008-07-15 2012-11-28 Lg电子株式会社 处理音频信号的方法和装置
CA2736709C (en) * 2008-09-11 2016-11-01 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus, method and computer program for providing a set of spatial cues on the basis of a microphone signal and apparatus for providing a two-channel audio signal and a set of spatial cues
US8023660B2 (en) 2008-09-11 2011-09-20 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus, method and computer program for providing a set of spatial cues on the basis of a microphone signal and apparatus for providing a two-channel audio signal and a set of spatial cues
CN102246543B (zh) * 2008-12-11 2014-06-18 弗兰霍菲尔运输应用研究公司 产生多信道音频信号的装置
US20120121091A1 (en) * 2009-02-13 2012-05-17 Nokia Corporation Ambience coding and decoding for audio applications
WO2010122455A1 (en) * 2009-04-21 2010-10-28 Koninklijke Philips Electronics N.V. Audio signal synthesizing
TWI413110B (zh) * 2009-10-06 2013-10-21 Dolby Int Ab 以選擇性通道解碼的有效多通道信號處理
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
EP2360681A1 (en) * 2010-01-15 2011-08-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for extracting a direct/ambience signal from a downmix signal and spatial parametric information
US9015612B2 (en) * 2010-11-09 2015-04-21 Sony Corporation Virtual room form maker
TWI413105B (zh) * 2010-12-30 2013-10-21 Ind Tech Res Inst 多語言之文字轉語音合成系統與方法
RU2554523C1 (ru) 2011-07-01 2015-06-27 Долби Лабораторис Лайсэнзин Корпорейшн Система и инструментальные средства для усовершенствованной авторской разработки и представления трехмерных аудиоданных
TWI603632B (zh) 2011-07-01 2017-10-21 杜比實驗室特許公司 用於適應性音頻信號的產生、譯碼與呈現之系統與方法
JP5810903B2 (ja) * 2011-12-27 2015-11-11 富士通株式会社 音声処理装置、音声処理方法及び音声処理用コンピュータプログラム
US9445174B2 (en) 2012-06-14 2016-09-13 Nokia Technologies Oy Audio capture apparatus
BR122021021487B1 (pt) * 2012-09-12 2022-11-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V Aparelho e método para fornecer capacidades melhoradas de downmix guiado para áudio 3d
JP6073456B2 (ja) * 2013-02-22 2017-02-01 三菱電機株式会社 音声強調装置
JP6017352B2 (ja) * 2013-03-07 2016-10-26 シャープ株式会社 音声信号変換装置及び方法
US9666198B2 (en) 2013-05-24 2017-05-30 Dolby International Ab Reconstruction of audio scenes from a downmix
IL290275B2 (en) 2013-05-24 2023-02-01 Dolby Int Ab Encoding audio scenes
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
EP3044783B1 (en) 2013-09-12 2017-07-19 Dolby International AB Audio coding
CN105981411B (zh) * 2013-11-27 2018-11-30 Dts（英属维尔京群岛）有限公司 用于高声道计数的多声道音频的基于多元组的矩阵混合
EP4089675A1 (en) * 2014-01-08 2022-11-16 Dolby International AB Method and apparatus for improving the coding of side information required for coding a higher order ambisonics representation of a sound field
CN105657633A (zh) 2014-09-04 2016-06-08 杜比实验室特许公司 生成针对音频对象的元数据
EP3369257B1 (en) * 2015-10-27 2021-08-18 Ambidio, Inc. Apparatus and method for sound stage enhancement
WO2017148526A1 (en) * 2016-03-03 2017-09-08 Nokia Technologies Oy Audio signal encoder, audio signal decoder, method for encoding and method for decoding
GB201718341D0 (en) * 2017-11-06 2017-12-20 Nokia Technologies Oy Determination of targeted spatial audio parameters and associated spatial audio playback
GB2572420A (en) 2018-03-29 2019-10-02 Nokia Technologies Oy Spatial sound rendering
GB2572650A (en) 2018-04-06 2019-10-09 Nokia Technologies Oy Spatial audio parameters and associated spatial audio playback
GB2574239A (en) 2018-05-31 2019-12-04 Nokia Technologies Oy Signalling of spatial audio parameters
GB2574667A (en) * 2018-06-15 2019-12-18 Nokia Technologies Oy Spatial audio capture, transmission and reproduction
GB201818959D0 (en) 2018-11-21 2019-01-09 Nokia Technologies Oy Ambience audio representation and associated rendering

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4251688A (en) * 1979-01-15 1981-02-17 Ana Maria Furner Audio-digital processing system for demultiplexing stereophonic/quadriphonic input audio signals into 4-to-72 output audio signals
AU653582B2 (en) 1991-01-08 1994-10-06 Dolby Laboratories Licensing Corporation Encoder/decoder for multidimensional sound fields
JP2985704B2 (ja) * 1995-01-25 1999-12-06 日本ビクター株式会社 サラウンド信号処理装置
US5890125A (en) 1997-07-16 1999-03-30 Dolby Laboratories Licensing Corporation Method and apparatus for encoding and decoding multiple audio channels at low bit rates using adaptive selection of encoding method
US6072878A (en) * 1997-09-24 2000-06-06 Sonic Solutions Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics
US6016473A (en) * 1998-04-07 2000-01-18 Dolby; Ray M. Low bit-rate spatial coding method and system
TW510143B (en) * 1999-12-03 2002-11-11 Dolby Lab Licensing Corp Method for deriving at least three audio signals from two input audio signals
AU2000280030A1 (en) * 2000-04-19 2001-11-07 Sonic Solutions Multi-channel surround sound mastering and reproduction techniques that preservespatial harmonics in three dimensions
SE0202159D0 (sv) 2001-07-10 2002-07-09 Coding Technologies Sweden Ab Efficientand scalable parametric stereo coding for low bitrate applications
AU2003216686A1 (en) * 2002-04-22 2003-11-03 Koninklijke Philips Electronics N.V. Parametric multi-channel audio representation
US7542896B2 (en) * 2002-07-16 2009-06-02 Koninklijke Philips Electronics N.V. Audio coding/decoding with spatial parameters and non-uniform segmentation for transients
JP2006521577A (ja) * 2003-03-24 2006-09-21 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ マルチチャネル信号を表す主信号と副信号の符号化
US7394903B2 (en) * 2004-01-20 2008-07-01 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Apparatus and method for constructing a multi-channel output signal or for generating a downmix signal
JP2008000001A (ja) * 2004-09-30 2008-01-10 Osaka Univ 免疫刺激オリゴヌクレオチドおよびその医薬用途
JP4983109B2 (ja) * 2006-06-23 2012-07-25 オムロン株式会社 電波検知回路及び遊技機

Also Published As

Publication number Publication date
CN1957640B (zh) 2011-06-29
JP4688867B2 (ja) 2011-05-25
WO2005101905A1 (en) 2005-10-27
EP1745676A1 (en) 2007-01-24
JP5165707B2 (ja) 2013-03-21
KR100855561B1 (ko) 2008-09-01
KR20070001227A (ko) 2007-01-03
US8194861B2 (en) 2012-06-05
US20070127733A1 (en) 2007-06-07
EP1745676B1 (en) 2013-06-12
SE0400997D0 (sv) 2004-04-16
JP2007533221A (ja) 2007-11-15
JP2010154548A (ja) 2010-07-08
CN1957640A (zh) 2007-05-02

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