HK1071271A1 - Method of decoding two-channel matrix encoded audio to reconstruct multichannel audio - Google Patents
Method of decoding two-channel matrix encoded audio to reconstruct multichannel audioInfo
- Publication number
- HK1071271A1 HK1071271A1 HK05104189.8A HK05104189A HK1071271A1 HK 1071271 A1 HK1071271 A1 HK 1071271A1 HK 05104189 A HK05104189 A HK 05104189A HK 1071271 A1 HK1071271 A1 HK 1071271A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- audio
- decoding
- channel matrix
- matrix encoded
- encoded audio
- Prior art date
Links
Classifications
-
- 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
Landscapes
- 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)
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 |
PCT/US2001/030997 WO2002032186A2 (en) | 2000-10-06 | 2001-10-04 | Method of decoding two-channel matrix encoded audio to reconstruct multichannel audio |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1071271A1 true HK1071271A1 (en) | 2005-07-08 |
Family
ID=24732305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK05104189.8A HK1071271A1 (en) | 2000-10-06 | 2005-05-19 | Method of decoding two-channel matrix encoded audio to reconstruct multichannel audio |
Country Status (11)
Country | Link |
---|---|
US (2) | US7003467B1 (tr) |
EP (1) | EP1354495B1 (tr) |
JP (1) | JP2004529515A (tr) |
KR (1) | KR100666019B1 (tr) |
CN (1) | CN100496149C (tr) |
AU (1) | AU2002211400A1 (tr) |
CA (1) | CA2423893C (tr) |
HK (1) | HK1071271A1 (tr) |
IL (2) | IL155129A0 (tr) |
TR (1) | TR200300428T2 (tr) |
WO (1) | WO2002032186A2 (tr) |
Families Citing this family (39)
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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 |
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 |
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 |
JP5328637B2 (ja) * | 2007-02-20 | 2013-10-30 | パナソニック株式会社 | マルチチャンネル復号装置、マルチチャンネル復号方法、プログラム及び半導体集積回路 |
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 |
ES2391801T3 (es) * | 2008-01-01 | 2012-11-30 | Lg Electronics Inc. | Procedimiento y aparato para procesar una señal de audio |
EP2232486B1 (en) | 2008-01-01 | 2013-07-17 | LG Electronics Inc. | A method and an apparatus for processing an audio signal |
TWI449442B (zh) | 2009-01-14 | 2014-08-11 | Dolby Lab Licensing Corp | 用於無回授之頻域主動矩陣解碼的方法與系統 |
CA3162807C (en) | 2009-01-16 | 2024-04-23 | 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 |
US8693697B2 (en) * | 2011-06-06 | 2014-04-08 | Reality Ip Pty Ltd | Matrix encoder with improved channel separation |
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 |
EP3028474B1 (en) | 2013-07-30 | 2018-12-19 | DTS, Inc. | Matrix decoder with constant-power pairwise panning |
ES2710774T3 (es) | 2013-11-27 | 2019-04-26 | Dts Inc | Mezcla de matriz basada en multipletes para audio de múltiples canales de alta cantidad de canales |
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 |
JP6546351B2 (ja) * | 2016-01-19 | 2019-07-17 | ブームクラウド 360 インコーポレイテッド | ヘッドマウントスピーカのためのオーディオエンハンスメント |
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。 |
JP2023551090A (ja) * | 2020-10-07 | 2023-12-07 | クラング | 音を出力する方法及びスピーカ |
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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 |
ES2087522T3 (es) * | 1991-01-08 | 1996-07-16 | Dolby Lab Licensing Corp | Descodificacion/codificacion para campos sonoros multidimensionales. |
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 |
FI102799B (fi) * | 1993-06-15 | 1999-02-15 | Nokia Technology Gmbh | Paranettu Dolby Prologic -dekooderi |
TW272341B (tr) * | 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 |
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 |
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 |
MXPA03001852A (es) | 2000-08-31 | 2003-09-10 | Dolby Lab Licensing Corp | Metodo para aparato para descodificacion de matriz de audio. |
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 WO PCT/US2001/030997 patent/WO2002032186A2/en active Application Filing
- 2001-10-04 CN CNB018201261A patent/CN100496149C/zh not_active Expired - Lifetime
- 2001-10-04 IL IL15512901A patent/IL155129A0/xx unknown
- 2001-10-04 CA CA002423893A patent/CA2423893C/en 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 TR TR2003/00428T patent/TR200300428T2/tr unknown
- 2001-10-04 JP JP2002535441A patent/JP2004529515A/ja active Pending
- 2001-10-04 EP EP01979430.4A patent/EP1354495B1/en not_active Expired - Lifetime
-
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
Also Published As
Publication number | Publication date |
---|---|
IL155129A0 (en) | 2003-10-31 |
US7003467B1 (en) | 2006-02-21 |
WO2002032186A3 (en) | 2003-08-14 |
TR200300428T2 (tr) | 2005-12-21 |
JP2004529515A (ja) | 2004-09-24 |
IL155129A (en) | 2009-11-18 |
KR100666019B1 (ko) | 2007-01-10 |
US20060095269A1 (en) | 2006-05-04 |
KR20030038786A (ko) | 2003-05-16 |
EP1354495A2 (en) | 2003-10-22 |
AU2002211400A1 (en) | 2002-04-22 |
EP1354495B1 (en) | 2013-04-10 |
WO2002032186A2 (en) | 2002-04-18 |
CN100496149C (zh) | 2009-06-03 |
CN1575621A (zh) | 2005-02-02 |
CA2423893A1 (en) | 2002-04-18 |
CA2423893C (en) | 2006-04-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE | Patent expired |
Effective date: 20211003 |