TWI369909B - Method and apparatus for conversion between multi-channel audio formats - Google Patents
Method and apparatus for conversion between multi-channel audio formatsInfo
- Publication number
- TWI369909B TWI369909B TW097109731A TW97109731A TWI369909B TW I369909 B TWI369909 B TW I369909B TW 097109731 A TW097109731 A TW 097109731A TW 97109731 A TW97109731 A TW 97109731A TW I369909 B TWI369909 B TW I369909B
- Authority
- TW
- Taiwan
- Prior art keywords
- conversion
- channel audio
- audio formats
- formats
- channel
- Prior art date
Links
- 238000006243 chemical reaction Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 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
- G10L19/04—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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/86—Arrangements characterised by the broadcast information itself
- H04H20/88—Stereophonic broadcast systems
- H04H20/89—Stereophonic broadcast systems using three or more audio channels, e.g. triphonic or quadraphonic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
-
- 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
- H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
- H04S2420/11—Application of ambisonics in stereophonic audio systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Mathematical Physics (AREA)
- Mathematical Optimization (AREA)
- Multimedia (AREA)
- Algebra (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Analysis (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- Computational Linguistics (AREA)
- Stereophonic System (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US89618407P | 2007-03-21 | 2007-03-21 | |
US11/742,502 US8290167B2 (en) | 2007-03-21 | 2007-04-30 | Method and apparatus for conversion between multi-channel audio formats |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200845801A TW200845801A (en) | 2008-11-16 |
TWI369909B true TWI369909B (en) | 2012-08-01 |
Family
ID=39313182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW097109731A TWI369909B (en) | 2007-03-21 | 2008-03-19 | Method and apparatus for conversion between multi-channel audio formats |
Country Status (9)
Country | Link |
---|---|
US (1) | US8290167B2 (zh) |
EP (1) | EP2130204A1 (zh) |
JP (1) | JP4993227B2 (zh) |
KR (1) | KR101195980B1 (zh) |
CN (1) | CN101669167A (zh) |
BR (1) | BRPI0808217B1 (zh) |
RU (1) | RU2449385C2 (zh) |
TW (1) | TWI369909B (zh) |
WO (1) | WO2008113428A1 (zh) |
Families Citing this family (43)
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US8249283B2 (en) * | 2006-01-19 | 2012-08-21 | Nippon Hoso Kyokai | Three-dimensional acoustic panning device |
US9014377B2 (en) * | 2006-05-17 | 2015-04-21 | Creative Technology Ltd | Multichannel surround format conversion and generalized upmix |
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 |
US8180062B2 (en) * | 2007-05-30 | 2012-05-15 | Nokia Corporation | Spatial sound zooming |
WO2009131658A2 (en) * | 2008-04-21 | 2009-10-29 | Snap Networks, Inc. | An electrical system for a speaker and its control |
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EP2205007B1 (en) * | 2008-12-30 | 2019-01-09 | Dolby International AB | Method and apparatus for three-dimensional acoustic field encoding and optimal reconstruction |
KR101387195B1 (ko) * | 2009-10-05 | 2014-04-21 | 하만인터내셔날인더스트리스인코포레이티드 | 오디오 신호의 공간 추출 시스템 |
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 |
CN102859590B (zh) * | 2010-02-24 | 2015-08-19 | 弗劳恩霍夫应用研究促进协会 | 产生增强下混频信号的装置、产生增强下混频信号的方法以及计算机程序 |
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KR101871234B1 (ko) | 2012-01-02 | 2018-08-02 | 삼성전자주식회사 | 사운드 파노라마 생성 장치 및 방법 |
JP2015509212A (ja) * | 2012-01-19 | 2015-03-26 | コーニンクレッカ フィリップス エヌ ヴェ | 空間オーディオ・レンダリング及び符号化 |
CN103379424B (zh) * | 2012-04-24 | 2016-08-10 | 华为技术有限公司 | 一种混音方法及多点控制服务器 |
EP2733964A1 (en) | 2012-11-15 | 2014-05-21 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Segment-wise adjustment of spatial audio signal to different playback loudspeaker setup |
AU2013355504C1 (en) | 2012-12-04 | 2016-12-15 | Samsung Electronics Co., Ltd. | Audio providing apparatus and audio providing method |
BR122021009025B1 (pt) | 2013-04-05 | 2022-08-30 | Dolby International Ab | Método de decodificação para decodificar dois sinais de áudio e decodificador para decodificar dois sinais de áudio |
CN109509478B (zh) | 2013-04-05 | 2023-09-05 | 杜比国际公司 | 音频处理装置 |
EP3005353B1 (en) | 2013-05-24 | 2017-08-16 | Dolby International AB | Efficient coding of audio scenes comprising audio objects |
KR101760248B1 (ko) * | 2013-05-24 | 2017-07-21 | 돌비 인터네셔널 에이비 | 오디오 오브젝트들을 포함한 오디오 장면들의 효율적 코딩 |
US20140355769A1 (en) | 2013-05-29 | 2014-12-04 | Qualcomm Incorporated | Energy preservation for decomposed representations of a sound field |
EP2814027B1 (en) * | 2013-06-11 | 2016-08-10 | Harman Becker Automotive Systems GmbH | Directional audio coding conversion |
EP2830332A3 (en) | 2013-07-22 | 2015-03-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method, signal processing unit, and computer program for mapping a plurality of input channels of an input channel configuration to output channels of an output channel configuration |
CN105556597B (zh) * | 2013-09-12 | 2019-10-29 | 杜比国际公司 | 多声道音频内容的编码和解码 |
WO2015054033A2 (en) * | 2013-10-07 | 2015-04-16 | Dolby Laboratories Licensing Corporation | Spatial audio processing system and method |
EP3127109B1 (en) | 2014-04-01 | 2018-03-14 | Dolby International AB | Efficient coding of audio scenes comprising audio objects |
US9852737B2 (en) * | 2014-05-16 | 2017-12-26 | Qualcomm Incorporated | Coding vectors decomposed from higher-order ambisonics audio signals |
US10770087B2 (en) | 2014-05-16 | 2020-09-08 | Qualcomm Incorporated | Selecting codebooks for coding vectors decomposed from higher-order ambisonic audio signals |
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 |
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 |
US9913061B1 (en) | 2016-08-29 | 2018-03-06 | The Directv Group, Inc. | Methods and systems for rendering binaural audio content |
EP3297298B1 (en) | 2016-09-19 | 2020-05-06 | A-Volute | Method for reproducing spatially distributed sounds |
US9820073B1 (en) | 2017-05-10 | 2017-11-14 | Tls Corp. | Extracting a common signal from multiple audio signals |
RU2759160C2 (ru) | 2017-10-04 | 2021-11-09 | Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. | УСТРОЙСТВО, СПОСОБ И КОМПЬЮТЕРНАЯ ПРОГРАММА ДЛЯ КОДИРОВАНИЯ, ДЕКОДИРОВАНИЯ, ОБРАБОТКИ СЦЕНЫ И ДРУГИХ ПРОЦЕДУР, ОТНОСЯЩИХСЯ К ОСНОВАННОМУ НА DirAC ПРОСТРАНСТВЕННОМУ АУДИОКОДИРОВАНИЮ |
AU2018368589B2 (en) * | 2017-11-17 | 2021-10-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for encoding or decoding directional audio coding parameters using quantization and entropy coding |
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WO2022164229A1 (ko) * | 2021-01-27 | 2022-08-04 | 삼성전자 주식회사 | 오디오 처리 장치 및 방법 |
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-
2007
- 2007-04-30 US US11/742,502 patent/US8290167B2/en active Active
-
2008
- 2008-02-01 JP JP2009553931A patent/JP4993227B2/ja active Active
- 2008-02-01 EP EP08707513A patent/EP2130204A1/en not_active Withdrawn
- 2008-02-01 BR BRPI0808217-0A patent/BRPI0808217B1/pt active IP Right Grant
- 2008-02-01 RU RU2009134474/08A patent/RU2449385C2/ru active
- 2008-02-01 CN CN200880009025A patent/CN101669167A/zh active Pending
- 2008-02-01 WO PCT/EP2008/000830 patent/WO2008113428A1/en active Application Filing
- 2008-02-01 KR KR1020097019537A patent/KR101195980B1/ko active IP Right Grant
- 2008-03-19 TW TW097109731A patent/TWI369909B/zh active
Also Published As
Publication number | Publication date |
---|---|
WO2008113428A1 (en) | 2008-09-25 |
KR20090117897A (ko) | 2009-11-13 |
CN101669167A (zh) | 2010-03-10 |
JP2010521910A (ja) | 2010-06-24 |
US20080232616A1 (en) | 2008-09-25 |
US8290167B2 (en) | 2012-10-16 |
JP4993227B2 (ja) | 2012-08-08 |
RU2449385C2 (ru) | 2012-04-27 |
RU2009134474A (ru) | 2011-04-27 |
TW200845801A (en) | 2008-11-16 |
KR101195980B1 (ko) | 2012-10-30 |
EP2130204A1 (en) | 2009-12-09 |
BRPI0808217A2 (pt) | 2014-07-01 |
BRPI0808217B1 (pt) | 2021-04-06 |
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