JP5941610B2 - トランスコーディング装置 - Google Patents
トランスコーディング装置 Download PDFInfo
- Publication number
- JP5941610B2 JP5941610B2 JP2009543949A JP2009543949A JP5941610B2 JP 5941610 B2 JP5941610 B2 JP 5941610B2 JP 2009543949 A JP2009543949 A JP 2009543949A JP 2009543949 A JP2009543949 A JP 2009543949A JP 5941610 B2 JP5941610 B2 JP 5941610B2
- Authority
- JP
- Japan
- Prior art keywords
- information
- audio
- signal
- sac
- 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.)
- Active
Links
- 230000005236 sound signal Effects 0.000 claims description 51
- 238000009877 rendering Methods 0.000 claims description 37
- 239000011159 matrix material Substances 0.000 description 59
- 108091006146 Channels Proteins 0.000 description 58
- 238000000034 method Methods 0.000 description 32
- 238000010586 diagram Methods 0.000 description 17
- 238000012545 processing Methods 0.000 description 14
- 239000013598 vector Substances 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000000284 extract Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
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
- G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
- H04S7/30—Control circuits for electronic adaptation of the sound field
-
- 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
- G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
-
- 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
- H04S2400/11—Positioning of individual sound objects, e.g. moving airplane, within a sound field
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Computational Linguistics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- Mathematical Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Stereophonic System (AREA)
- Theoretical Computer Science (AREA)
- Stereo-Broadcasting Methods (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Transmitters (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Description
これと関連して、従来のSAC(Spatial Audio Coding)は、マルチチャネルオーディオ信号をダウンミックスされたモノまたはステレオ信号で表現、伝送および復元する技術であって、低いビット率でも高品質のマルチチャネルオーディオ信号を伝送することができる。
前記第1行列部313は、制御信号(例えば,オブジェクト制御情報、再生システム情報)を利用し、前記SAOCコーダ101に入力される1つ以上のオーディオオブジェクトを所望の出力、すなわち多様なチャネルのマルチオブジェクトオーディオ信号でマッピングするための第1行列を生成する。
および演算過程は下記の数式4および数式5で詳細に説明する。
例えば、BCCデコーダの場合、1つのチャネルを基準として前記数式8を利用してN−1個のCLDパラメータを抽出することができる。また、MPEGサラウンドデコーダの場合、MPEGサラウンドのチャネル別の比較順に応じてCLDパラメータを抽出することができる。
図4は、図2のビットストリームフォーマッタ205から生成される代表SAOCビットストリームを示す一実施形態の構造図である。
ここで、Pm object#Nは、SAOCコーダ101によって出力される代表ダウンミックス信号のm番目バンドのパワー大きさである。したがって、オーディオオブジェクト除去部701に入力される代表ダウンミックス信号をu(n)とし、前記代表ダウンミックス信号を周波数領域に変換したものをU(f)とし、オーディオオブジェクト除去部701の出力信号、すなわち前記SACデコーダ105の入力信号をUmodified(f)とすれば、Umodified(f)は、前記SACコーダ201のダウンミックス信号のオーディオオブジェクト(OBJECT#N)と対応し、下記の数式10のように表すことができる。
Claims (1)
- マルチオブジェクトオーディオ信号を復号化するためのレンダリング情報を生成するトランスコーディング装置であって、
符号化されたオーディオオブジェクト信号に対するパワー利得情報または出力位置情報を含むレンダリング情報を受信する受信手段と、
前記受信手段によって受信されたレンダリング情報および符号化装置から入力される前記符号化されたオーディオオブジェクト信号に対するレンダリング情報に基づいて、復号化装置から出力されるオーディオ信号に対する空間キュー情報を生成するレンダリング手段と、
を備え、
前記レンダリング手段は、前記符号化されたオーディオオブジェクト信号のうちの所定オーディオオブジェクト信号に対する空間キュー情報を除いた、前記復号化装置から出力されるオーディオオブジェクト信号に対する空間キュー情報を生成し、
前記トランスコーディング装置は、前記符号化されたオーディオオブジェクト信号のうちから前記所定オーディオオブジェクト信号を除去するオーディオオブジェクト除去手段をさらに備える、
トランスコーディング装置。
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20060135400 | 2006-12-27 | ||
KR10-2006-0135400 | 2006-12-27 | ||
KR20070003897 | 2007-01-12 | ||
KR10-2007-0003897 | 2007-01-12 | ||
KR20070007724 | 2007-01-25 | ||
KR10-2007-0007724 | 2007-01-25 | ||
PCT/KR2007/006910 WO2008078973A1 (en) | 2006-12-27 | 2007-12-27 | Apparatus and method for coding and decoding multi-object audio signal with various channel including information bitstream conversion |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012256586A Division JP5694279B2 (ja) | 2006-12-27 | 2012-11-22 | 符号化装置 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2010515099A JP2010515099A (ja) | 2010-05-06 |
JP2010515099A5 JP2010515099A5 (ja) | 2011-02-17 |
JP5941610B2 true JP5941610B2 (ja) | 2016-06-29 |
Family
ID=39562714
Family Applications (8)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009543949A Active JP5941610B2 (ja) | 2006-12-27 | 2007-12-27 | トランスコーディング装置 |
JP2012256586A Active JP5694279B2 (ja) | 2006-12-27 | 2012-11-22 | 符号化装置 |
JP2013011344A Pending JP2013101384A (ja) | 2006-12-27 | 2013-01-24 | トランスコーディング装置 |
JP2013011324A Active JP5752722B2 (ja) | 2006-12-27 | 2013-01-24 | トランスコーディング装置 |
JP2013011340A Active JP6027901B2 (ja) | 2006-12-27 | 2013-01-24 | トランスコーディング装置 |
JP2013011336A Active JP5674833B2 (ja) | 2006-12-27 | 2013-01-24 | 符号化装置 |
JP2016127783A Active JP6446407B2 (ja) | 2006-12-27 | 2016-06-28 | トランスコーディング方法 |
JP2018226651A Pending JP2019074743A (ja) | 2006-12-27 | 2018-12-03 | トランスコーディング装置 |
Family Applications After (7)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012256586A Active JP5694279B2 (ja) | 2006-12-27 | 2012-11-22 | 符号化装置 |
JP2013011344A Pending JP2013101384A (ja) | 2006-12-27 | 2013-01-24 | トランスコーディング装置 |
JP2013011324A Active JP5752722B2 (ja) | 2006-12-27 | 2013-01-24 | トランスコーディング装置 |
JP2013011340A Active JP6027901B2 (ja) | 2006-12-27 | 2013-01-24 | トランスコーディング装置 |
JP2013011336A Active JP5674833B2 (ja) | 2006-12-27 | 2013-01-24 | 符号化装置 |
JP2016127783A Active JP6446407B2 (ja) | 2006-12-27 | 2016-06-28 | トランスコーディング方法 |
JP2018226651A Pending JP2019074743A (ja) | 2006-12-27 | 2018-12-03 | トランスコーディング装置 |
Country Status (6)
Country | Link |
---|---|
US (2) | US8370164B2 (ja) |
EP (6) | EP2595149A3 (ja) |
JP (8) | JP5941610B2 (ja) |
KR (6) | KR101086347B1 (ja) |
CN (6) | CN103137130B (ja) |
WO (1) | WO2008078973A1 (ja) |
Families Citing this family (51)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2595149A3 (en) * | 2006-12-27 | 2013-11-13 | Electronics and Telecommunications Research Institute | Apparatus for transcoding downmix signals |
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 |
KR101461685B1 (ko) * | 2008-03-31 | 2014-11-19 | 한국전자통신연구원 | 다객체 오디오 신호의 부가정보 비트스트림 생성 방법 및 장치 |
KR101596504B1 (ko) * | 2008-04-23 | 2016-02-23 | 한국전자통신연구원 | 객체기반 오디오 컨텐츠의 생성/재생 방법 및 객체기반 오디오 서비스를 위한 파일 포맷 구조를 가진 데이터를 기록한 컴퓨터 판독 가능 기록 매체 |
US8452430B2 (en) | 2008-07-15 | 2013-05-28 | Lg Electronics Inc. | Method and an apparatus for processing an audio signal |
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 |
KR101614160B1 (ko) * | 2008-07-16 | 2016-04-20 | 한국전자통신연구원 | 포스트 다운믹스 신호를 지원하는 다객체 오디오 부호화 장치 및 복호화 장치 |
JP5243527B2 (ja) * | 2008-07-29 | 2013-07-24 | パナソニック株式会社 | 音響符号化装置、音響復号化装置、音響符号化復号化装置および会議システム |
EP2154910A1 (en) * | 2008-08-13 | 2010-02-17 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus for merging spatial audio streams |
KR101600352B1 (ko) * | 2008-10-30 | 2016-03-07 | 삼성전자주식회사 | 멀티 채널 신호의 부호화/복호화 장치 및 방법 |
KR101129974B1 (ko) * | 2008-12-22 | 2012-03-28 | (주)오디즌 | 객체 기반 오디오 컨텐츠 생성/재생 방법 및 그 장치 |
US8255821B2 (en) * | 2009-01-28 | 2012-08-28 | Lg Electronics Inc. | Method and an apparatus for decoding an audio signal |
US20100324915A1 (en) * | 2009-06-23 | 2010-12-23 | Electronic And Telecommunications Research Institute | Encoding and decoding apparatuses for high quality multi-channel audio codec |
US20110054917A1 (en) * | 2009-08-28 | 2011-03-03 | Electronics And Telecommunications Research Institute | Apparatus and method for structuring bitstream for object-based audio service, and apparatus for encoding the bitstream |
PL2489038T3 (pl) * | 2009-11-20 | 2016-07-29 | Fraunhofer Ges Forschung | Urządzenie do dostarczania reprezentacji sygnału upmixu na bazie reprezentacji sygnału downmixu, urządzenie do dostarczania strumienia bitów reprezentującego wielokanałowy sygnał audio, sposoby, programy komputerowe i strumień bitów reprezentujący wielokanałowy sygnał audio z zastosowaniem parametru kombinacji liniowej |
GB2485979A (en) * | 2010-11-26 | 2012-06-06 | Univ Surrey | Spatial audio coding |
ES2525839T3 (es) * | 2010-12-03 | 2014-12-30 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Adquisición de sonido mediante la extracción de información geométrica de estimativos de dirección de llegada |
KR20120071072A (ko) | 2010-12-22 | 2012-07-02 | 한국전자통신연구원 | 객체 기반 오디오를 제공하는 방송 송신 장치 및 방법, 그리고 방송 재생 장치 및 방법 |
JP6096789B2 (ja) | 2011-11-01 | 2017-03-15 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | オーディオオブジェクトのエンコーディング及びデコーディング |
US9622014B2 (en) | 2012-06-19 | 2017-04-11 | Dolby Laboratories Licensing Corporation | Rendering and playback of spatial audio using channel-based audio systems |
US9489954B2 (en) | 2012-08-07 | 2016-11-08 | Dolby Laboratories Licensing Corporation | Encoding and rendering of object based audio indicative of game audio content |
KR20140046980A (ko) * | 2012-10-11 | 2014-04-21 | 한국전자통신연구원 | 오디오 데이터 생성 장치 및 방법, 오디오 데이터 재생 장치 및 방법 |
RU2613731C2 (ru) | 2012-12-04 | 2017-03-21 | Самсунг Электроникс Ко., Лтд. | Устройство предоставления аудио и способ предоставления аудио |
TWI530941B (zh) | 2013-04-03 | 2016-04-21 | 杜比實驗室特許公司 | 用於基於物件音頻之互動成像的方法與系統 |
WO2014187989A2 (en) | 2013-05-24 | 2014-11-27 | Dolby International Ab | Reconstruction of audio scenes from a downmix |
IL302328B2 (en) | 2013-05-24 | 2024-05-01 | Dolby Int Ab | Encoding audio scenes |
TWI615834B (zh) * | 2013-05-31 | 2018-02-21 | Sony Corp | 編碼裝置及方法、解碼裝置及方法、以及程式 |
US9858932B2 (en) | 2013-07-08 | 2018-01-02 | Dolby Laboratories Licensing Corporation | Processing of time-varying metadata for lossless resampling |
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 |
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 |
EP2830050A1 (en) | 2013-07-22 | 2015-01-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for enhanced spatial audio object coding |
US9373320B1 (en) | 2013-08-21 | 2016-06-21 | Google Inc. | Systems and methods facilitating selective removal of content from a mixed audio recording |
KR102243395B1 (ko) * | 2013-09-05 | 2021-04-22 | 한국전자통신연구원 | 오디오 부호화 장치 및 방법, 오디오 복호화 장치 및 방법, 오디오 재생 장치 |
KR101805630B1 (ko) * | 2013-09-27 | 2017-12-07 | 삼성전자주식회사 | 멀티 디코딩 처리 방법 및 이를 수행하기 위한 멀티 디코더 |
US10023586B2 (en) * | 2013-12-19 | 2018-07-17 | Archer Daniels Midland Company | Enhanced regio-selectivity in glycol acylation |
WO2015142073A1 (ko) * | 2014-03-19 | 2015-09-24 | 주식회사 윌러스표준기술연구소 | 오디오 신호 처리 방법 및 장치 |
JP6374980B2 (ja) * | 2014-03-26 | 2018-08-15 | パナソニック株式会社 | サラウンドオーディオ信号処理のための装置及び方法 |
WO2015156654A1 (ko) * | 2014-04-11 | 2015-10-15 | 삼성전자 주식회사 | 음향 신호의 렌더링 방법, 장치 및 컴퓨터 판독 가능한 기록 매체 |
EP3134897B1 (en) | 2014-04-25 | 2020-05-20 | Dolby Laboratories Licensing Corporation | Matrix decomposition for rendering adaptive audio using high definition audio codecs |
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 |
EP3312834A1 (en) * | 2015-06-17 | 2018-04-25 | Samsung Electronics Co., Ltd. | Method and device for processing internal channels for low complexity format conversion |
KR101754528B1 (ko) * | 2016-03-23 | 2017-07-06 | 한국광기술원 | 건식 접착구조를 갖는 led 구조체 어레이의 전사체와 이를 이용한 led 구조체 어레이의 이송방법 및 led 구조체 |
US10535355B2 (en) | 2016-11-18 | 2020-01-14 | Microsoft Technology Licensing, Llc | Frame coding for spatial audio data |
CN108206021B (zh) * | 2016-12-16 | 2020-12-18 | 南京青衿信息科技有限公司 | 一种后向兼容式三维声编码器、解码器及其编解码方法 |
CN110800048B (zh) * | 2017-05-09 | 2023-07-28 | 杜比实验室特许公司 | 多通道空间音频格式输入信号的处理 |
US11595774B2 (en) * | 2017-05-12 | 2023-02-28 | Microsoft Technology Licensing, Llc | Spatializing audio data based on analysis of incoming audio data |
JP6772215B2 (ja) | 2018-05-28 | 2020-10-21 | 三井金属アクト株式会社 | ドアロック装置対 |
JP6652990B2 (ja) * | 2018-07-20 | 2020-02-26 | パナソニック株式会社 | サラウンドオーディオ信号処理のための装置及び方法 |
GB201909133D0 (en) | 2019-06-25 | 2019-08-07 | Nokia Technologies Oy | Spatial audio representation and rendering |
CN114930876B (zh) * | 2019-12-02 | 2023-07-14 | 杜比实验室特许公司 | 用于从基于声道的音频到基于对象的音频的转换的***、方法和装置 |
KR102243889B1 (ko) | 2019-12-13 | 2021-04-23 | 국방과학연구소 | 데이터 복호화 장치 및 방법 |
Family Cites Families (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5583962A (en) * | 1991-01-08 | 1996-12-10 | Dolby Laboratories Licensing Corporation | Encoder/decoder for multidimensional sound fields |
US5815689A (en) * | 1997-04-04 | 1998-09-29 | Microsoft Corporation | Method and computer program product for synchronizing the processing of multiple data streams and matching disparate processing rates using a standardized clock mechanism |
US7644003B2 (en) * | 2001-05-04 | 2010-01-05 | Agere Systems Inc. | Cue-based audio coding/decoding |
AU2002343151A1 (en) * | 2001-11-23 | 2003-06-10 | Koninklijke Philips Electronics N.V. | Perceptual noise substitution |
US7797631B2 (en) * | 2002-09-18 | 2010-09-14 | Canon Kabushiki Kaisha | Document printing control apparatus and method |
DE602005022641D1 (de) * | 2004-03-01 | 2010-09-09 | Dolby Lab Licensing Corp | Mehrkanal-Audiodekodierung |
US8204261B2 (en) * | 2004-10-20 | 2012-06-19 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Diffuse sound shaping for BCC schemes and the like |
SE0402652D0 (sv) | 2004-11-02 | 2004-11-02 | Coding Tech Ab | Methods for improved performance of prediction based multi- channel reconstruction |
WO2006060279A1 (en) * | 2004-11-30 | 2006-06-08 | Agere Systems Inc. | Parametric coding of spatial audio with object-based side information |
KR100682904B1 (ko) * | 2004-12-01 | 2007-02-15 | 삼성전자주식회사 | 공간 정보를 이용한 다채널 오디오 신호 처리 장치 및 방법 |
EP1859439B1 (en) * | 2005-03-14 | 2013-10-30 | Electronics and Telecommunications Research Institute | Multichannel audio compression and decompression method using virtual source location information |
KR101315077B1 (ko) * | 2005-03-30 | 2013-10-08 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 멀티-채널 오디오 데이터를 인코딩 및 디코딩하기 위한 방법, 및 인코더들 및 디코더들 |
US7751572B2 (en) * | 2005-04-15 | 2010-07-06 | Dolby International Ab | Adaptive residual audio coding |
US7961890B2 (en) * | 2005-04-15 | 2011-06-14 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung, E.V. | Multi-channel hierarchical audio coding with compact side information |
JP2008542816A (ja) | 2005-05-26 | 2008-11-27 | エルジー エレクトロニクス インコーポレイティド | オーディオ信号の符号化及び復号化方法 |
EP1984916A4 (en) | 2006-02-09 | 2010-09-29 | Lg Electronics Inc | AUDIO SIGNAL-BASED ENCODING AND DECODING METHOD AND CORRESPONDING APPARATUS |
EP1853092B1 (en) * | 2006-05-04 | 2011-10-05 | LG Electronics, Inc. | Enhancing stereo audio with remix capability |
US8379868B2 (en) * | 2006-05-17 | 2013-02-19 | Creative Technology Ltd | Spatial audio coding based on universal spatial cues |
US20080004729A1 (en) * | 2006-06-30 | 2008-01-03 | Nokia Corporation | Direct encoding into a directional audio coding format |
EP2575129A1 (en) * | 2006-09-29 | 2013-04-03 | Electronics and Telecommunications Research Institute | Apparatus and method for coding and decoding multi-object audio signal with various channel |
KR20090013178A (ko) | 2006-09-29 | 2009-02-04 | 엘지전자 주식회사 | 오브젝트 기반 오디오 신호를 인코딩 및 디코딩하는 방법 및 장치 |
CA2874454C (en) | 2006-10-16 | 2017-05-02 | Dolby International Ab | Enhanced coding and parameter representation of multichannel downmixed object coding |
EP2437257B1 (en) * | 2006-10-16 | 2018-01-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Saoc to mpeg surround transcoding |
DE102006050068B4 (de) * | 2006-10-24 | 2010-11-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zum Erzeugen eines Umgebungssignals aus einem Audiosignal, Vorrichtung und Verfahren zum Ableiten eines Mehrkanal-Audiosignals aus einem Audiosignal und Computerprogramm |
BRPI0711094A2 (pt) | 2006-11-24 | 2011-08-23 | Lg Eletronics Inc | método para codificação e decodificação de sinal de áudio baseado em objeto e aparelho deste |
EP2595149A3 (en) * | 2006-12-27 | 2013-11-13 | Electronics and Telecommunications Research Institute | Apparatus for transcoding downmix signals |
ATE526659T1 (de) * | 2007-02-14 | 2011-10-15 | Lg Electronics Inc | Verfahren und vorrichtung zum kodieren von einem audiosignal |
US8073125B2 (en) * | 2007-09-25 | 2011-12-06 | Microsoft Corporation | Spatial audio conferencing |
KR101461685B1 (ko) * | 2008-03-31 | 2014-11-19 | 한국전자통신연구원 | 다객체 오디오 신호의 부가정보 비트스트림 생성 방법 및 장치 |
JP5243527B2 (ja) * | 2008-07-29 | 2013-07-24 | パナソニック株式会社 | 音響符号化装置、音響復号化装置、音響符号化復号化装置および会議システム |
-
2007
- 2007-12-27 EP EP20130152829 patent/EP2595149A3/en not_active Ceased
- 2007-12-27 CN CN201310053705.5A patent/CN103137130B/zh active Active
- 2007-12-27 EP EP20070860705 patent/EP2097895A4/en not_active Withdrawn
- 2007-12-27 CN CN201210381376.2A patent/CN102883257B/zh active Active
- 2007-12-27 EP EP20130152926 patent/EP2595152A3/en not_active Withdrawn
- 2007-12-27 EP EP20130152922 patent/EP2595150A3/en not_active Withdrawn
- 2007-12-27 WO PCT/KR2007/006910 patent/WO2008078973A1/en active Application Filing
- 2007-12-27 CN CN2013100537093A patent/CN103137131A/zh active Pending
- 2007-12-27 CN CN201210033862.5A patent/CN102595303B/zh active Active
- 2007-12-27 KR KR1020070138847A patent/KR101086347B1/ko active IP Right Grant
- 2007-12-27 US US12/521,433 patent/US8370164B2/en active Active
- 2007-12-27 EP EP20130152827 patent/EP2595148A3/en not_active Withdrawn
- 2007-12-27 CN CN201310056244.7A patent/CN103137132B/zh active Active
- 2007-12-27 CN CN2007800517586A patent/CN101632118B/zh active Active
- 2007-12-27 JP JP2009543949A patent/JP5941610B2/ja active Active
- 2007-12-27 EP EP20130152923 patent/EP2595151A3/en not_active Withdrawn
-
2010
- 2010-03-24 KR KR1020100026330A patent/KR101531239B1/ko active IP Right Grant
-
2011
- 2011-02-18 KR KR1020110014763A patent/KR101546744B1/ko active IP Right Grant
-
2012
- 2012-11-22 JP JP2012256586A patent/JP5694279B2/ja active Active
- 2012-12-26 KR KR1020120153690A patent/KR101309672B1/ko active IP Right Grant
- 2012-12-26 KR KR1020120153474A patent/KR101395254B1/ko active IP Right Grant
- 2012-12-26 KR KR1020120153640A patent/KR101309673B1/ko active IP Right Grant
-
2013
- 2013-01-02 US US13/732,682 patent/US9257127B2/en active Active
- 2013-01-24 JP JP2013011344A patent/JP2013101384A/ja active Pending
- 2013-01-24 JP JP2013011324A patent/JP5752722B2/ja active Active
- 2013-01-24 JP JP2013011340A patent/JP6027901B2/ja active Active
- 2013-01-24 JP JP2013011336A patent/JP5674833B2/ja active Active
-
2016
- 2016-06-28 JP JP2016127783A patent/JP6446407B2/ja active Active
-
2018
- 2018-12-03 JP JP2018226651A patent/JP2019074743A/ja active Pending
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6446407B2 (ja) | トランスコーディング方法 | |
JP2010515099A5 (ja) | ||
KR101422745B1 (ko) | 다채널로 구성된 다객체 오디오 신호의 인코딩 및 디코딩장치 및 방법 | |
JP5576488B2 (ja) | オーディオ信号デコーダ、オーディオ信号エンコーダ、アップミックス信号表現の生成方法、ダウンミックス信号表現の生成方法、及びコンピュータプログラム | |
JP4685925B2 (ja) | 適応残差オーディオ符号化 | |
CA2645912C (en) | Methods and apparatuses for encoding and decoding object-based audio signals | |
RU2406166C2 (ru) | Способы и устройства кодирования и декодирования основывающихся на объектах ориентированных аудиосигналов | |
JP6133422B2 (ja) | マルチチャネルをダウンミックス/アップミックスする場合のため一般化された空間オーディオオブジェクト符号化パラメトリック概念のデコーダおよび方法 | |
JP2016530788A (ja) | 符号化表現に基づいて少なくとも4つのオーディオチャネル信号を提供するためのオーディオデコーダ、オーディオエンコーダ、方法、帯域幅拡張を用いた少なくとも4つのオーディオチャネル信号に基づいて符号化表現を提供するための方法およびコンピュータプログラム |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20101224 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20101224 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20120522 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20120822 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20120829 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20120924 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20121001 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20121022 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20121029 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20121122 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20130524 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20130826 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20130902 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20130924 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20131001 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20131024 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20131031 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20131125 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20140507 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20140806 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20150116 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20150317 |
|
A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20150325 |
|
A912 | Re-examination (zenchi) completed and case transferred to appeal board |
Free format text: JAPANESE INTERMEDIATE CODE: A912 Effective date: 20150529 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20160318 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20160523 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5941610 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |