HK1054838B - 由兩路或更多路輸入音頻信號獲得至少一路音頻信號的方法和裝置 - Google Patents
由兩路或更多路輸入音頻信號獲得至少一路音頻信號的方法和裝置Info
- Publication number
- HK1054838B HK1054838B HK03104927.7A HK03104927A HK1054838B HK 1054838 B HK1054838 B HK 1054838B HK 03104927 A HK03104927 A HK 03104927A HK 1054838 B HK1054838 B HK 1054838B
- Authority
- HK
- Hong Kong
- Prior art keywords
- signals
- signal
- output
- audio
- antidominant
- Prior art date
Links
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Acoustics & Sound (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Algebra (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Stereophonic System (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Analogue/Digital Conversion (AREA)
- Stereo-Broadcasting Methods (AREA)
- Toys (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US45481099A | 1999-12-03 | 1999-12-03 | |
US09/532,711 US6920223B1 (en) | 1999-12-03 | 2000-03-22 | Method for deriving at least three audio signals from two input audio signals |
US09/602,585 US6970567B1 (en) | 1999-12-03 | 2000-06-21 | Method and apparatus for deriving at least one audio signal from two or more input audio signals |
PCT/US2000/032537 WO2001041505A1 (en) | 1999-12-03 | 2000-11-29 | Method and apparatus for deriving at least one audio signal from two or more input audio signals |
Publications (2)
Publication Number | Publication Date |
---|---|
HK1054838A1 HK1054838A1 (en) | 2003-12-12 |
HK1054838B true HK1054838B (zh) | 2006-09-08 |
Family
ID=27412620
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK03104927.7A HK1054838B (zh) | 1999-12-03 | 2003-07-09 | 由兩路或更多路輸入音頻信號獲得至少一路音頻信號的方法和裝置 |
Country Status (13)
Country | Link |
---|---|
US (1) | US6970567B1 (zh) |
EP (1) | EP1234485B1 (zh) |
JP (1) | JP2003515771A (zh) |
CN (1) | CN1250046C (zh) |
AT (1) | ATE301384T1 (zh) |
AU (1) | AU784083B2 (zh) |
BR (1) | BR0016741A (zh) |
CA (1) | CA2392602A1 (zh) |
DE (1) | DE60021756T2 (zh) |
HK (1) | HK1054838B (zh) |
MX (1) | MXPA02005520A (zh) |
TW (1) | TW506227B (zh) |
WO (1) | WO2001041505A1 (zh) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US8983834B2 (en) | 2004-03-01 | 2015-03-17 | Dolby Laboratories Licensing Corporation | Multichannel audio coding |
RU2390857C2 (ru) * | 2004-04-05 | 2010-05-27 | Конинклейке Филипс Электроникс Н.В. | Многоканальный кодировщик |
JP4594681B2 (ja) * | 2004-09-08 | 2010-12-08 | ソニー株式会社 | 音声信号処理装置および音声信号処理方法 |
JP4580210B2 (ja) * | 2004-10-19 | 2010-11-10 | ソニー株式会社 | 音声信号処理装置および音声信号処理方法 |
US8111830B2 (en) * | 2005-12-19 | 2012-02-07 | Samsung Electronics Co., Ltd. | Method and apparatus to provide active audio matrix decoding based on the positions of speakers and a listener |
FR2916078A1 (fr) * | 2007-05-10 | 2008-11-14 | France Telecom | Procede de codage et decodage audio, codeur audio, decodeur audio et programmes d'ordinateur associes |
CN102017402B (zh) | 2007-12-21 | 2015-01-07 | Dts有限责任公司 | 用于调节音频信号的感知响度的系统 |
TWI424755B (zh) * | 2008-01-11 | 2014-01-21 | Dolby Lab Licensing Corp | 矩陣解碼器 |
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 |
US8538042B2 (en) | 2009-08-11 | 2013-09-17 | Dts Llc | System for increasing perceived loudness of speakers |
WO2013094135A1 (ja) | 2011-12-19 | 2013-06-27 | パナソニック株式会社 | 音分離装置、および音分離方法 |
US9312829B2 (en) | 2012-04-12 | 2016-04-12 | Dts Llc | System for adjusting loudness of audio signals in real time |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4589129A (en) | 1984-02-21 | 1986-05-13 | Kintek, Inc. | Signal decoding system |
US4799260A (en) | 1985-03-07 | 1989-01-17 | Dolby Laboratories Licensing Corporation | Variable matrix decoder |
US5172415A (en) | 1990-06-08 | 1992-12-15 | Fosgate James W | Surround processor |
US5295189A (en) | 1990-06-08 | 1994-03-15 | Fosgate James W | Control voltage generator for surround sound processor |
US5625696A (en) | 1990-06-08 | 1997-04-29 | Harman International Industries, Inc. | Six-axis surround sound processor with improved matrix and cancellation control |
US5504819A (en) | 1990-06-08 | 1996-04-02 | Harman International Industries, Inc. | Surround sound processor with improved control voltage generator |
US5428687A (en) | 1990-06-08 | 1995-06-27 | James W. Fosgate | Control voltage generator multiplier and one-shot for integrated surround sound processor |
JP3472046B2 (ja) | 1996-08-23 | 2003-12-02 | 株式会社国際電気通信基礎技術研究所 | 信号分離装置 |
US5862228A (en) | 1997-02-21 | 1999-01-19 | Dolby Laboratories Licensing Corporation | Audio matrix encoding |
US6198826B1 (en) | 1997-05-19 | 2001-03-06 | Qsound Labs, Inc. | Qsound surround synthesis from stereo |
-
2000
- 2000-06-21 US US09/602,585 patent/US6970567B1/en not_active Expired - Fee Related
- 2000-11-22 TW TW089124809A patent/TW506227B/zh not_active IP Right Cessation
- 2000-11-29 AU AU20518/01A patent/AU784083B2/en not_active Ceased
- 2000-11-29 JP JP2001541299A patent/JP2003515771A/ja not_active Withdrawn
- 2000-11-29 CA CA002392602A patent/CA2392602A1/en not_active Abandoned
- 2000-11-29 AT AT00983809T patent/ATE301384T1/de not_active IP Right Cessation
- 2000-11-29 EP EP00983809A patent/EP1234485B1/en not_active Expired - Lifetime
- 2000-11-29 BR BR0016741-0A patent/BR0016741A/pt not_active Application Discontinuation
- 2000-11-29 CN CNB008165629A patent/CN1250046C/zh not_active Expired - Fee Related
- 2000-11-29 DE DE60021756T patent/DE60021756T2/de not_active Expired - Fee Related
- 2000-11-29 MX MXPA02005520A patent/MXPA02005520A/es active IP Right Grant
- 2000-11-29 WO PCT/US2000/032537 patent/WO2001041505A1/en active IP Right Grant
-
2003
- 2003-07-09 HK HK03104927.7A patent/HK1054838B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
WO2001041505A1 (en) | 2001-06-07 |
ATE301384T1 (de) | 2005-08-15 |
DE60021756T2 (de) | 2006-04-20 |
CN1402957A (zh) | 2003-03-12 |
DE60021756D1 (de) | 2005-09-08 |
EP1234485A1 (en) | 2002-08-28 |
US6970567B1 (en) | 2005-11-29 |
JP2003515771A (ja) | 2003-05-07 |
AU2051801A (en) | 2001-06-12 |
HK1054838A1 (en) | 2003-12-12 |
AU784083B2 (en) | 2006-02-02 |
CA2392602A1 (en) | 2001-06-07 |
EP1234485B1 (en) | 2005-08-03 |
CN1250046C (zh) | 2006-04-05 |
BR0016741A (pt) | 2002-09-03 |
MXPA02005520A (es) | 2002-10-23 |
TW506227B (en) | 2002-10-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20091129 |