AU784855B2 - Method for deriving at least three audio signals from two input audio signals - Google Patents
Method for deriving at least three audio signals from two input audio signals Download PDFInfo
- Publication number
- AU784855B2 AU784855B2 AU18043/01A AU1804301A AU784855B2 AU 784855 B2 AU784855 B2 AU 784855B2 AU 18043/01 A AU18043/01 A AU 18043/01A AU 1804301 A AU1804301 A AU 1804301A AU 784855 B2 AU784855 B2 AU 784855B2
- Authority
- AU
- Australia
- Prior art keywords
- signals
- output
- audio signals
- pair
- variable gain
- 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.)
- Expired
Links
- 230000005236 sound signal Effects 0.000 title claims description 98
- 238000000034 method Methods 0.000 title claims description 30
- 239000011159 matrix material Substances 0.000 claims abstract description 142
- 230000004044 response Effects 0.000 claims abstract description 17
- 238000012545 processing Methods 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 8
- 230000000630 rising effect Effects 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 2
- 238000012886 linear function Methods 0.000 claims description 2
- 230000003044 adaptive effect Effects 0.000 abstract description 10
- 230000006870 function Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 11
- 238000004091 panning Methods 0.000 description 9
- 238000004458 analytical method Methods 0.000 description 3
- 238000009795 derivation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Algebra (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Stereophonic System (AREA)
- Amplifiers (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US45481099A | 1999-12-03 | 1999-12-03 | |
| US09/454810 | 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 |
| US09/532711 | 2000-03-22 | ||
| PCT/US2000/032383 WO2001041504A1 (en) | 1999-12-03 | 2000-11-28 | Method for deriving at least three audio signals from two input audio signals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU1804301A AU1804301A (en) | 2001-06-12 |
| AU784855B2 true AU784855B2 (en) | 2006-07-06 |
Family
ID=27037614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU18043/01A Expired AU784855B2 (en) | 1999-12-03 | 2000-11-28 | Method for deriving at least three audio signals from two input audio signals |
Country Status (14)
| Country | Link |
|---|---|
| EP (1) | EP1234484B1 (enExample) |
| JP (1) | JP4540285B2 (enExample) |
| CN (1) | CN1226901C (enExample) |
| AT (1) | ATE272303T1 (enExample) |
| AU (1) | AU784855B2 (enExample) |
| BR (1) | BRPI0015969B1 (enExample) |
| CA (1) | CA2392601C (enExample) |
| DE (1) | DE60012568T2 (enExample) |
| DK (1) | DK1234484T3 (enExample) |
| ES (1) | ES2220572T3 (enExample) |
| MX (1) | MXPA02005521A (enExample) |
| TR (1) | TR200402241T4 (enExample) |
| TW (1) | TW510143B (enExample) |
| WO (1) | WO2001041504A1 (enExample) |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE546018T1 (de) | 2000-08-31 | 2012-03-15 | Dolby Lab Licensing Corp | Verfahren und anordnung zur audiomatrixdekodierung |
| US7003467B1 (en) | 2000-10-06 | 2006-02-21 | Digital Theater Systems, Inc. | Method of decoding two-channel matrix encoded audio to reconstruct multichannel audio |
| ATE527654T1 (de) | 2004-03-01 | 2011-10-15 | Dolby Lab Licensing Corp | Mehrkanal-audiodecodierung |
| SE0400997D0 (sv) * | 2004-04-16 | 2004-04-16 | Cooding Technologies Sweden Ab | Efficient coding of multi-channel audio |
| KR100725818B1 (ko) | 2004-07-14 | 2007-06-11 | 삼성전자주식회사 | 최적 가상음원을 제공하는 음향재생장치 및 음향재생방법 |
| 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 |
| KR101210797B1 (ko) * | 2004-10-28 | 2012-12-10 | 디티에스 워싱턴, 엘엘씨 | 오디오 공간 환경 엔진 |
| EP1691348A1 (en) * | 2005-02-14 | 2006-08-16 | Ecole Polytechnique Federale De Lausanne | Parametric joint-coding of audio sources |
| JP5191886B2 (ja) * | 2005-06-03 | 2013-05-08 | 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 | サイド情報を有するチャンネルの再構成 |
| US20070055510A1 (en) * | 2005-07-19 | 2007-03-08 | Johannes Hilpert | Concept for bridging the gap between parametric multi-channel audio coding and matrixed-surround multi-channel coding |
| JP4602204B2 (ja) | 2005-08-31 | 2010-12-22 | 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 |
| JP4720405B2 (ja) * | 2005-09-27 | 2011-07-13 | 船井電機株式会社 | 音声信号処理装置 |
| JP4637725B2 (ja) | 2005-11-11 | 2011-02-23 | ソニー株式会社 | 音声信号処理装置、音声信号処理方法、プログラム |
| US7760886B2 (en) | 2005-12-20 | 2010-07-20 | Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forscheng e.V. | Apparatus and method for synthesizing three output channels using two input channels |
| US8949120B1 (en) | 2006-05-25 | 2015-02-03 | Audience, Inc. | Adaptive noise cancelation |
| JP4894386B2 (ja) | 2006-07-21 | 2012-03-14 | ソニー株式会社 | 音声信号処理装置、音声信号処理方法および音声信号処理プログラム |
| JP4835298B2 (ja) | 2006-07-21 | 2011-12-14 | ソニー株式会社 | オーディオ信号処理装置、オーディオ信号処理方法およびプログラム |
| TWI424755B (zh) * | 2008-01-11 | 2014-01-21 | Dolby Lab Licensing Corp | 矩陣解碼器 |
| EP2146522A1 (en) * | 2008-07-17 | 2010-01-20 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for generating audio output signals using object based metadata |
| 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 |
| US8718290B2 (en) | 2010-01-26 | 2014-05-06 | Audience, Inc. | Adaptive noise reduction using level cues |
| US8473287B2 (en) | 2010-04-19 | 2013-06-25 | Audience, Inc. | Method for jointly optimizing noise reduction and voice quality in a mono or multi-microphone system |
| JP5556673B2 (ja) * | 2011-01-11 | 2014-07-23 | 株式会社Ｊｖｃケンウッド | 音声信号補正装置、音声信号補正方法及びプログラム |
| JP5248718B1 (ja) | 2011-12-19 | 2013-07-31 | パナソニック株式会社 | 音分離装置、および音分離方法 |
| US8737188B1 (en) | 2012-01-11 | 2014-05-27 | Audience, Inc. | Crosstalk cancellation systems and methods |
| US9640194B1 (en) | 2012-10-04 | 2017-05-02 | Knowles Electronics, Llc | Noise suppression for speech processing based on machine-learning mask estimation |
| US9215545B2 (en) | 2013-05-31 | 2015-12-15 | Bose Corporation | Sound stage controller for a near-field speaker-based audio system |
| US9536540B2 (en) | 2013-07-19 | 2017-01-03 | Knowles Electronics, Llc | Speech signal separation and synthesis based on auditory scene analysis and speech modeling |
| WO2016033364A1 (en) | 2014-08-28 | 2016-03-03 | Audience, Inc. | Multi-sourced noise suppression |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4589129A (en) * | 1984-02-21 | 1986-05-13 | Kintek, Inc. | Signal decoding system |
| US5644640A (en) * | 1990-06-08 | 1997-07-01 | Harman International Industries, Inc. | Surround sound processor with improved control voltage generator |
| EP0949845A2 (en) * | 1998-04-09 | 1999-10-13 | Qsound Labs Incorporated | Qsound surround synthesis from stereo |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE171035T1 (de) * | 1990-06-08 | 1998-09-15 | Harman Int Ind | Raumklang-prozessor |
-
2000
- 2000-11-22 TW TW089124808A patent/TW510143B/zh not_active IP Right Cessation
- 2000-11-28 AT AT00980830T patent/ATE272303T1/de active
- 2000-11-28 DK DK00980830T patent/DK1234484T3/da active
- 2000-11-28 EP EP00980830A patent/EP1234484B1/en not_active Expired - Lifetime
- 2000-11-28 AU AU18043/01A patent/AU784855B2/en not_active Expired
- 2000-11-28 CA CA2392601A patent/CA2392601C/en not_active Expired - Lifetime
- 2000-11-28 MX MXPA02005521A patent/MXPA02005521A/es active IP Right Grant
- 2000-11-28 TR TR2004/02241T patent/TR200402241T4/xx unknown
- 2000-11-28 BR BRPI0015969-7A patent/BRPI0015969B1/pt not_active IP Right Cessation
- 2000-11-28 ES ES00980830T patent/ES2220572T3/es not_active Expired - Lifetime
- 2000-11-28 CN CNB008160627A patent/CN1226901C/zh not_active Expired - Lifetime
- 2000-11-28 WO PCT/US2000/032383 patent/WO2001041504A1/en not_active Ceased
- 2000-11-28 DE DE60012568T patent/DE60012568T2/de not_active Expired - Lifetime
- 2000-11-28 JP JP2001541298A patent/JP4540285B2/ja not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4589129A (en) * | 1984-02-21 | 1986-05-13 | Kintek, Inc. | Signal decoding system |
| US5644640A (en) * | 1990-06-08 | 1997-07-01 | Harman International Industries, Inc. | Surround sound processor with improved control voltage generator |
| EP0949845A2 (en) * | 1998-04-09 | 1999-10-13 | Qsound Labs Incorporated | Qsound surround synthesis from stereo |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE272303T1 (de) | 2004-08-15 |
| HK1051621A1 (en) | 2003-08-08 |
| MXPA02005521A (es) | 2002-10-23 |
| BR0015969A (pt) | 2002-07-16 |
| ES2220572T3 (es) | 2004-12-16 |
| JP2003516069A (ja) | 2003-05-07 |
| DK1234484T3 (da) | 2004-11-22 |
| CN1391782A (zh) | 2003-01-15 |
| EP1234484A1 (en) | 2002-08-28 |
| WO2001041504A1 (en) | 2001-06-07 |
| JP4540285B2 (ja) | 2010-09-08 |
| CA2392601C (en) | 2012-07-17 |
| TR200402241T4 (tr) | 2004-10-21 |
| BRPI0015969B1 (pt) | 2015-06-02 |
| TW510143B (en) | 2002-11-11 |
| CN1226901C (zh) | 2005-11-09 |
| DE60012568D1 (de) | 2004-09-02 |
| CA2392601A1 (en) | 2001-06-07 |
| EP1234484B1 (en) | 2004-07-28 |
| DE60012568T2 (de) | 2005-08-04 |
| AU1804301A (en) | 2001-06-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |