CN1575621A - 把两频道矩阵编码音频重构为多频道音频的解码方法 - Google Patents
把两频道矩阵编码音频重构为多频道音频的解码方法 Download PDFInfo
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- CN1575621A CN1575621A CNA018201261A CN01820126A CN1575621A CN 1575621 A CN1575621 A CN 1575621A CN A018201261 A CNA018201261 A CN A018201261A CN 01820126 A CN01820126 A CN 01820126A CN 1575621 A CN1575621 A CN 1575621A
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- 239000011159 matrix material Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000005236 sound signal Effects 0.000 claims description 30
- 238000004088 simulation Methods 0.000 claims 3
- 238000013507 mapping Methods 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 abstract 1
- 230000002194 synthesizing effect Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 description 12
- 238000002156 mixing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
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- 238000004364 calculation method Methods 0.000 description 1
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- 238000013101 initial test Methods 0.000 description 1
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- 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
- H04S5/005—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation of the pseudo five- or more-channel type, e.g. virtual surround
-
- 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
- H04S5/02—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation of the pseudo four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals
-
- 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
-
- 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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Algebra (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Stereophonic System (AREA)
Abstract
Description
Claims (19)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/680,737 US7003467B1 (en) | 2000-10-06 | 2000-10-06 | Method of decoding two-channel matrix encoded audio to reconstruct multichannel audio |
US09/680,737 | 2000-10-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1575621A true CN1575621A (zh) | 2005-02-02 |
CN100496149C CN100496149C (zh) | 2009-06-03 |
Family
ID=24732305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB018201261A Expired - Lifetime CN100496149C (zh) | 2000-10-06 | 2001-10-04 | 把两频道矩阵编码音频重构为多频道音频的解码方法 |
Country Status (11)
Country | Link |
---|---|
US (2) | US7003467B1 (zh) |
EP (1) | EP1354495B1 (zh) |
JP (1) | JP2004529515A (zh) |
KR (1) | KR100666019B1 (zh) |
CN (1) | CN100496149C (zh) |
AU (1) | AU2002211400A1 (zh) |
CA (1) | CA2423893C (zh) |
HK (1) | HK1071271A1 (zh) |
IL (2) | IL155129A0 (zh) |
TR (1) | TR200300428T2 (zh) |
WO (1) | WO2002032186A2 (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7983922B2 (en) | 2005-04-15 | 2011-07-19 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for generating multi-channel synthesizer control signal and apparatus and method for multi-channel synthesizing |
CN103718573A (zh) * | 2011-06-06 | 2014-04-09 | 瑞丽地知识产权私人有限公司 | 具有改善的通道分离的矩阵编码器 |
CN102282868B (zh) * | 2009-01-14 | 2016-11-02 | 杜比实验室特许公司 | 没有反馈的频域有源矩阵解码的方法和*** |
Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
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US7003467B1 (en) * | 2000-10-06 | 2006-02-21 | Digital Theater Systems, Inc. | Method of decoding two-channel matrix encoded audio to reconstruct multichannel audio |
US7660424B2 (en) | 2001-02-07 | 2010-02-09 | Dolby Laboratories Licensing Corporation | Audio channel spatial translation |
US7240001B2 (en) | 2001-12-14 | 2007-07-03 | Microsoft Corporation | Quality improvement techniques in an audio encoder |
CA2424093A1 (en) * | 2003-03-31 | 2004-09-30 | Dspfactory Ltd. | Method and device for acoustic shock protection |
US7929708B2 (en) * | 2004-01-12 | 2011-04-19 | Dts, Inc. | Audio spatial environment engine |
GB2410164A (en) * | 2004-01-16 | 2005-07-20 | Anthony John Andrews | Sound feature positioner |
US7460990B2 (en) * | 2004-01-23 | 2008-12-02 | Microsoft Corporation | Efficient coding of digital media spectral data using wide-sense perceptual similarity |
US7853022B2 (en) * | 2004-10-28 | 2010-12-14 | Thompson Jeffrey K | Audio spatial environment engine |
US20060106620A1 (en) * | 2004-10-28 | 2006-05-18 | Thompson Jeffrey K | Audio spatial environment down-mixer |
US7562021B2 (en) * | 2005-07-15 | 2009-07-14 | Microsoft Corporation | Modification of codewords in dictionary used for efficient coding of digital media spectral data |
US7630882B2 (en) * | 2005-07-15 | 2009-12-08 | Microsoft Corporation | Frequency segmentation to obtain bands for efficient coding of digital media |
EP2093757A4 (en) * | 2007-02-20 | 2012-02-22 | Panasonic Corp | MULTIPLEX DECODING DEVICE, MULTIPLEX DECODING METHOD, PROGRAM, AND SEMICONDUCTOR INTEGRATED CIRCUIT |
JP5021809B2 (ja) * | 2007-06-08 | 2012-09-12 | ドルビー ラボラトリーズ ライセンシング コーポレイション | アンビエンス信号成分とマトリックスデコードされた信号成分とを制御可能に結合することによるサラウンドサウンドオーディオチャンネルのハイブリッド導出 |
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 |
US8249883B2 (en) * | 2007-10-26 | 2012-08-21 | Microsoft Corporation | Channel extension coding for multi-channel source |
KR101415026B1 (ko) * | 2007-11-19 | 2014-07-04 | 삼성전자주식회사 | 마이크로폰 어레이를 이용한 다채널 사운드 획득 방법 및장치 |
KR101439205B1 (ko) | 2007-12-21 | 2014-09-11 | 삼성전자주식회사 | 오디오 매트릭스 인코딩 및 디코딩 방법 및 장치 |
WO2009084916A1 (en) * | 2008-01-01 | 2009-07-09 | Lg Electronics Inc. | A method and an apparatus for processing an audio signal |
WO2009084919A1 (en) * | 2008-01-01 | 2009-07-09 | Lg Electronics Inc. | A method and an apparatus for processing an audio signal |
EP2380172B1 (en) | 2009-01-16 | 2013-07-24 | Dolby International AB | Cross product enhanced harmonic transposition |
KR20110022252A (ko) * | 2009-08-27 | 2011-03-07 | 삼성전자주식회사 | 스테레오 오디오의 부호화, 복호화 방법 및 장치 |
EP2510709A4 (en) * | 2009-12-10 | 2015-04-08 | Reality Ip Pty Ltd | IMPROVED MATRIX DECODER FOR SURROUND SOUND |
KR101785379B1 (ko) * | 2010-12-31 | 2017-10-16 | 삼성전자주식회사 | 공간 음향에너지 분포 제어장치 및 방법 |
EP2909971B1 (en) | 2012-10-18 | 2020-09-02 | Dolby Laboratories Licensing Corporation | Systems and methods for initiating conferences using external devices |
EP2830061A1 (en) | 2013-07-22 | 2015-01-28 | Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for encoding and decoding an encoded audio signal using temporal noise/patch shaping |
PL3429233T3 (pl) | 2013-07-30 | 2020-11-16 | Dts, Inc. | Dekoder matrycowy z panoramowaniem parami o stałej mocy |
WO2015081293A1 (en) | 2013-11-27 | 2015-06-04 | Dts, Inc. | Multiplet-based matrix mixing for high-channel count multichannel audio |
US9917662B2 (en) * | 2014-01-22 | 2018-03-13 | Siemens Aktiengesellschaft | Digital measurement input for an electric automation device, electric automation device comprising a digital measurement input, and method for processing digital input measurement values |
US9306606B2 (en) * | 2014-06-10 | 2016-04-05 | The Boeing Company | Nonlinear filtering using polyphase filter banks |
CA3011694C (en) * | 2016-01-19 | 2019-04-02 | Boomcloud 360, Inc. | Audio enhancement for head-mounted speakers |
JP6569571B2 (ja) | 2016-03-15 | 2019-09-04 | ヤマハ株式会社 | 信号処理装置及び信号処理方法 |
JP6969368B2 (ja) | 2017-12-27 | 2021-11-24 | ヤマハ株式会社 | オーディオデータ処理装置、及びオーディオデータ処理装置の制御方法。 |
JP2019205114A (ja) | 2018-05-25 | 2019-11-28 | ヤマハ株式会社 | データ処理装置、及びデータ処理方法。 |
US20230370777A1 (en) * | 2020-10-07 | 2023-11-16 | Clang | A method of outputting sound and a loudspeaker |
Family Cites Families (18)
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GB1514162A (en) * | 1974-03-25 | 1978-06-14 | Ruggles W | Directional enhancement system for quadraphonic decoders |
US4704728A (en) * | 1984-12-31 | 1987-11-03 | Peter Scheiber | Signal re-distribution, decoding and processing in accordance with amplitude, phase, and other characteristics |
US5046098A (en) * | 1985-03-07 | 1991-09-03 | Dolby Laboratories Licensing Corporation | Variable matrix decoder with three output channels |
US5172415A (en) * | 1990-06-08 | 1992-12-15 | Fosgate James W | Surround processor |
US5583962A (en) * | 1991-01-08 | 1996-12-10 | Dolby Laboratories Licensing Corporation | Encoder/decoder for multidimensional sound fields |
US5274740A (en) * | 1991-01-08 | 1993-12-28 | Dolby Laboratories Licensing Corporation | Decoder for variable number of channel presentation of multidimensional sound fields |
JP2509789B2 (ja) * | 1992-08-22 | 1996-06-26 | 三星電子株式会社 | 可聴周波数帯域分割を利用した音響信号歪み補正装置 |
US5319713A (en) * | 1992-11-12 | 1994-06-07 | Rocktron Corporation | Multi dimensional sound circuit |
FI102799B1 (fi) * | 1993-06-15 | 1999-02-15 | Nokia Technology Gmbh | Paranettu Dolby Prologic -dekooderi |
TW272341B (zh) * | 1993-07-16 | 1996-03-11 | Sony Co Ltd | |
JP3404837B2 (ja) * | 1993-12-07 | 2003-05-12 | ソニー株式会社 | 多層符号化装置 |
EP0688113A2 (en) * | 1994-06-13 | 1995-12-20 | Sony Corporation | Method and apparatus for encoding and decoding digital audio signals and apparatus for recording digital audio |
US5870480A (en) * | 1996-07-19 | 1999-02-09 | Lexicon | Multichannel active matrix encoder and decoder with maximum lateral separation |
US5796844A (en) * | 1996-07-19 | 1998-08-18 | Lexicon | Multichannel active matrix sound reproduction with maximum lateral separation |
US6970567B1 (en) | 1999-12-03 | 2005-11-29 | Dolby Laboratories Licensing Corporation | Method and apparatus for deriving at least one audio signal from two or more input audio signals |
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 |
WO2002019768A2 (en) | 2000-08-31 | 2002-03-07 | Dolby Laboratories Licensing Corporation | Method for apparatus for audio matrix decoding |
US7003467B1 (en) * | 2000-10-06 | 2006-02-21 | Digital Theater Systems, Inc. | Method of decoding two-channel matrix encoded audio to reconstruct multichannel audio |
-
2000
- 2000-10-06 US US09/680,737 patent/US7003467B1/en not_active Expired - Lifetime
-
2001
- 2001-10-04 IL IL15512901A patent/IL155129A0/xx unknown
- 2001-10-04 TR TR2003/00428T patent/TR200300428T2/xx unknown
- 2001-10-04 EP EP01979430.4A patent/EP1354495B1/en not_active Expired - Lifetime
- 2001-10-04 CA CA002423893A patent/CA2423893C/en not_active Expired - Lifetime
- 2001-10-04 JP JP2002535441A patent/JP2004529515A/ja active Pending
- 2001-10-04 CN CNB018201261A patent/CN100496149C/zh not_active Expired - Lifetime
- 2001-10-04 KR KR1020037004696A patent/KR100666019B1/ko active IP Right Grant
- 2001-10-04 AU AU2002211400A patent/AU2002211400A1/en not_active Abandoned
- 2001-10-04 WO PCT/US2001/030997 patent/WO2002032186A2/en active Application Filing
-
2003
- 2003-03-27 IL IL155129A patent/IL155129A/en active IP Right Grant
-
2005
- 2005-05-19 HK HK05104189.8A patent/HK1071271A1/xx not_active IP Right Cessation
- 2005-12-15 US US11/300,767 patent/US20060095269A1/en not_active Abandoned
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7983922B2 (en) | 2005-04-15 | 2011-07-19 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for generating multi-channel synthesizer control signal and apparatus and method for multi-channel synthesizing |
US8532999B2 (en) | 2005-04-15 | 2013-09-10 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Apparatus and method for generating a multi-channel synthesizer control signal, multi-channel synthesizer, method of generating an output signal from an input signal and machine-readable storage medium |
CN102282868B (zh) * | 2009-01-14 | 2016-11-02 | 杜比实验室特许公司 | 没有反馈的频域有源矩阵解码的方法和*** |
CN103718573A (zh) * | 2011-06-06 | 2014-04-09 | 瑞丽地知识产权私人有限公司 | 具有改善的通道分离的矩阵编码器 |
Also Published As
Publication number | Publication date |
---|---|
KR100666019B1 (ko) | 2007-01-10 |
WO2002032186A3 (en) | 2003-08-14 |
US7003467B1 (en) | 2006-02-21 |
EP1354495A2 (en) | 2003-10-22 |
CN100496149C (zh) | 2009-06-03 |
EP1354495B1 (en) | 2013-04-10 |
CA2423893A1 (en) | 2002-04-18 |
HK1071271A1 (en) | 2005-07-08 |
CA2423893C (en) | 2006-04-25 |
TR200300428T2 (tr) | 2005-12-21 |
WO2002032186A2 (en) | 2002-04-18 |
AU2002211400A1 (en) | 2002-04-22 |
KR20030038786A (ko) | 2003-05-16 |
IL155129A (en) | 2009-11-18 |
IL155129A0 (en) | 2003-10-31 |
US20060095269A1 (en) | 2006-05-04 |
JP2004529515A (ja) | 2004-09-24 |
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