JP2003515771A - ２つ又はそれ以上の入力オーディオ信号から少なくとも１つのオーディオ信号を導出する方法及び装置 - Google Patents
２つ又はそれ以上の入力オーディオ信号から少なくとも１つのオーディオ信号を導出する方法及び装置Info
- Publication number
- JP2003515771A JP2003515771A JP2001541299A JP2001541299A JP2003515771A JP 2003515771 A JP2003515771 A JP 2003515771A JP 2001541299 A JP2001541299 A JP 2001541299A JP 2001541299 A JP2001541299 A JP 2001541299A JP 2003515771 A JP2003515771 A JP 2003515771A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- signals
- dominant
- output
- audio signal
- 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.)
- Withdrawn
Links
- 230000005236 sound signal Effects 0.000 title claims abstract description 140
- 238000000034 method Methods 0.000 title claims description 37
- 239000011159 matrix material Substances 0.000 claims abstract description 155
- 238000009795 derivation Methods 0.000 claims description 9
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 abstract description 10
- 230000006870 function Effects 0.000 description 84
- 230000008859 change Effects 0.000 description 29
- 238000013016 damping Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 13
- 230000007613 environmental effect Effects 0.000 description 10
- 230000002829 reductive effect Effects 0.000 description 7
- 238000013459 approach Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000004044 response Effects 0.000 description 6
- 238000005192 partition Methods 0.000 description 5
- 230000000737 periodic effect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 230000002238 attenuated effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 229940102743 mag 64 Drugs 0.000 description 2
- 230000000051 modifying effect Effects 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- OVSKIKFHRZPJSS-UHFFFAOYSA-N 2,4-D Chemical compound OC(=O)COC1=CC=C(Cl)C=C1Cl OVSKIKFHRZPJSS-UHFFFAOYSA-N 0.000 description 1
- 206010010219 Compulsions Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
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- 238000012886 linear function Methods 0.000 description 1
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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)
- Analogue/Digital Conversion (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Stereo-Broadcasting Methods (AREA)
- Toys (AREA)
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US45481099A | 1999-12-03 | 1999-12-03 | |
| US09/454,810 | 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 |
| US09/532,711 | 2000-03-22 | ||
| 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 |
| US09/602,585 | 2000-06-21 | ||
| 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 |
|---|---|
| JP2003515771A true JP2003515771A (ja) | 2003-05-07 |
| JP2003515771A5 JP2003515771A5 (enExample) | 2005-10-20 |
Family
ID=27412620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001541299A Withdrawn JP2003515771A (ja) | 1999-12-03 | 2000-11-29 | ２つ又はそれ以上の入力オーディオ信号から少なくとも１つのオーディオ信号を導出する方法及び装置 |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US6970567B1 (enExample) |
| EP (1) | EP1234485B1 (enExample) |
| JP (1) | JP2003515771A (enExample) |
| CN (1) | CN1250046C (enExample) |
| AT (1) | ATE301384T1 (enExample) |
| AU (1) | AU784083B2 (enExample) |
| BR (1) | BR0016741A (enExample) |
| CA (1) | CA2392602A1 (enExample) |
| DE (1) | DE60021756T2 (enExample) |
| HK (1) | HK1054838B (enExample) |
| MX (1) | MXPA02005520A (enExample) |
| TW (1) | TW506227B (enExample) |
| WO (1) | WO2001041505A1 (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8442241B2 (en) | 2004-10-19 | 2013-05-14 | Sony Corporation | Audio signal processing for separating multiple source signals from at least one source signal |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4624643B2 (ja) | 2000-08-31 | 2011-02-02 | ドルビー・ラボラトリーズ・ライセンシング・コーポレーション | オーディオ・マトリックス・デコーディング装置に関する方法 |
| US7003467B1 (en) | 2000-10-06 | 2006-02-21 | Digital Theater Systems, Inc. | Method of decoding two-channel matrix encoded audio to reconstruct multichannel audio |
| CA2992125C (en) | 2004-03-01 | 2018-09-25 | Dolby Laboratories Licensing Corporation | Reconstructing audio signals with multiple decorrelation techniques and differentially coded parameters |
| MXPA06011361A (es) * | 2004-04-05 | 2007-01-16 | Koninkl Philips Electronics Nv | Codificador de canales multiples. |
| 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 |
| 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 |
| US8315398B2 (en) | 2007-12-21 | 2012-11-20 | Dts Llc | System for adjusting perceived loudness of audio signals |
| 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 |
| US5504819A (en) | 1990-06-08 | 1996-04-02 | Harman International Industries, Inc. | Surround sound processor with improved control voltage generator |
| US5172415A (en) | 1990-06-08 | 1992-12-15 | Fosgate James W | Surround processor |
| US5428687A (en) | 1990-06-08 | 1995-06-27 | James W. Fosgate | Control voltage generator multiplier and one-shot for integrated surround sound 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 |
| 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 BR BR0016741-0A patent/BR0016741A/pt not_active Application Discontinuation
- 2000-11-29 DE DE60021756T patent/DE60021756T2/de not_active Expired - Fee Related
- 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 JP JP2001541299A patent/JP2003515771A/ja not_active Withdrawn
- 2000-11-29 HK HK03104927.7A patent/HK1054838B/zh not_active IP Right Cessation
- 2000-11-29 AU AU20518/01A patent/AU784083B2/en not_active Ceased
- 2000-11-29 CN CNB008165629A patent/CN1250046C/zh 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 not_active Ceased
- 2000-11-29 EP EP00983809A patent/EP1234485B1/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8442241B2 (en) | 2004-10-19 | 2013-05-14 | Sony Corporation | Audio signal processing for separating multiple source signals from at least one source signal |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1234485A1 (en) | 2002-08-28 |
| CN1250046C (zh) | 2006-04-05 |
| DE60021756D1 (de) | 2005-09-08 |
| ATE301384T1 (de) | 2005-08-15 |
| WO2001041505A1 (en) | 2001-06-07 |
| DE60021756T2 (de) | 2006-04-20 |
| EP1234485B1 (en) | 2005-08-03 |
| AU784083B2 (en) | 2006-02-02 |
| CN1402957A (zh) | 2003-03-12 |
| CA2392602A1 (en) | 2001-06-07 |
| BR0016741A (pt) | 2002-09-03 |
| TW506227B (en) | 2002-10-11 |
| MXPA02005520A (es) | 2002-10-23 |
| HK1054838B (zh) | 2006-09-08 |
| US6970567B1 (en) | 2005-11-29 |
| AU2051801A (en) | 2001-06-12 |
| HK1054838A1 (en) | 2003-12-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20080205 |