CH625660A5 - - Google Patents
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- Publication number
- CH625660A5 CH625660A5 CH589977A CH589977A CH625660A5 CH 625660 A5 CH625660 A5 CH 625660A5 CH 589977 A CH589977 A CH 589977A CH 589977 A CH589977 A CH 589977A CH 625660 A5 CH625660 A5 CH 625660A5
- Authority
- CH
- Switzerland
- Prior art keywords
- signal
- gain
- components
- signals
- filter
- Prior art date
Links
- 230000007704 transition Effects 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 13
- 230000010363 phase shift Effects 0.000 claims description 13
- 230000004044 response Effects 0.000 claims description 8
- 239000011159 matrix material Substances 0.000 description 26
- 238000010586 diagram Methods 0.000 description 11
- 238000010276 construction Methods 0.000 description 5
- 230000004807 localization Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 210000005069 ears Anatomy 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 235000003197 Byrsonima crassifolia Nutrition 0.000 description 1
- 240000001546 Byrsonima crassifolia Species 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000009467 reduction Effects 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
- H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
- H04S2420/11—Application of ambisonics in stereophonic audio systems
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Algebra (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Stereophonic System (AREA)
- Circuit For Audible Band Transducer (AREA)
- Stereo-Broadcasting Methods (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB13292/74A GB1494751A (en) | 1974-03-26 | 1974-03-26 | Sound reproduction systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH625660A5 true CH625660A5 (en, 2012) | 1981-09-30 |
Family
ID=10020311
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH383175A CH617303A5 (en, 2012) | 1974-03-26 | 1975-03-25 | |
| CH589977A CH625660A5 (en, 2012) | 1974-03-26 | 1977-05-11 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH383175A CH617303A5 (en, 2012) | 1974-03-26 | 1975-03-25 |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3997725A (en, 2012) |
| JP (2) | JPS5943880B2 (en, 2012) |
| CA (1) | CA1020095A (en, 2012) |
| CH (2) | CH617303A5 (en, 2012) |
| DE (1) | DE2512287A1 (en, 2012) |
| DK (1) | DK120075A (en, 2012) |
| FR (1) | FR2266411B1 (en, 2012) |
| GB (1) | GB1494751A (en, 2012) |
| IT (1) | IT1034536B (en, 2012) |
| NL (1) | NL181068C (en, 2012) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4085291A (en) * | 1971-10-06 | 1978-04-18 | Cooper Duane H | Synthetic supplementary channel matrix decoding systems |
| US4086433A (en) * | 1974-03-26 | 1978-04-25 | National Research Development Corporation | Sound reproduction system with non-square loudspeaker lay-out |
| GB1512514A (en) * | 1974-07-12 | 1978-06-01 | Nat Res Dev | Microphone assemblies |
| GB1550627A (en) * | 1975-11-13 | 1979-08-15 | Nat Res Dev | Sound reproduction systems |
| US4095049A (en) * | 1976-03-15 | 1978-06-13 | National Research Development Corporation | Non-rotationally-symmetric surround-sound encoding system |
| GB1548674A (en) * | 1976-07-01 | 1979-07-18 | Nat Res Dev | Sound reproduction systems |
| GB2073556B (en) | 1980-02-23 | 1984-02-22 | Nat Res Dev | Sound reproduction systems |
| DE3734084A1 (de) * | 1987-10-08 | 1989-04-27 | Inst Rundfunktechnik Gmbh | Verfahren zum wiedergeben mehrkanaliger tonsignale |
| JPH05191899A (ja) * | 1992-01-16 | 1993-07-30 | Pioneer Electron Corp | ステレオサラウンド装置 |
| US5757927A (en) * | 1992-03-02 | 1998-05-26 | Trifield Productions Ltd. | Surround sound apparatus |
| US5754663A (en) * | 1995-03-30 | 1998-05-19 | Bsg Laboratories | Four dimensional acoustical audio system for a homogeneous sound field |
| US5708719A (en) * | 1995-09-07 | 1998-01-13 | Rep Investment Limited Liability Company | In-home theater surround sound speaker system |
| US6118876A (en) * | 1995-09-07 | 2000-09-12 | Rep Investment Limited Liability Company | Surround sound speaker system for improved spatial effects |
| US5930370A (en) * | 1995-09-07 | 1999-07-27 | Rep Investment Limited Liability | In-home theater surround sound speaker system |
| US5677957A (en) * | 1995-11-13 | 1997-10-14 | Hulsebus; Alan | Audio circuit producing enhanced ambience |
| US6072878A (en) * | 1997-09-24 | 2000-06-06 | Sonic Solutions | Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics |
| US20080144864A1 (en) * | 2004-05-25 | 2008-06-19 | Huonlabs Pty Ltd | Audio Apparatus And Method |
| US20060215859A1 (en) * | 2005-03-28 | 2006-09-28 | Morrow Charles G | Sonic method and apparatus |
| WO2010113434A1 (ja) * | 2009-03-31 | 2010-10-07 | パナソニック株式会社 | 音響再生装置及び音響再生方法 |
| US9020152B2 (en) * | 2010-03-05 | 2015-04-28 | Stmicroelectronics Asia Pacific Pte. Ltd. | Enabling 3D sound reproduction using a 2D speaker arrangement |
| US8593219B1 (en) * | 2012-08-31 | 2013-11-26 | Motorola Solutions, Inc. | Method and apparatus for amplifying a radio frequency signal |
| US9338552B2 (en) | 2014-05-09 | 2016-05-10 | Trifield Ip, Llc | Coinciding low and high frequency localization panning |
| US10251012B2 (en) | 2016-06-07 | 2019-04-02 | Philip Raymond Schaefer | System and method for realistic rotation of stereo or binaural audio |
| CN109618275B (zh) * | 2018-12-29 | 2020-11-17 | 武汉轻工大学 | 多声道的非中心点声场重建方法、设备、存储介质及装置 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1369813A (en) * | 1971-02-02 | 1974-10-09 | Nat Res Dev | Reproduction of sound |
| US3784746A (en) * | 1971-07-06 | 1974-01-08 | R Hess | Single actuator for effecting multiple controls |
| US3830978A (en) * | 1971-07-08 | 1974-08-20 | Matsushita Electric Ind Co Ltd | Circuit for mixing four audio input signals to produce four audio output signals |
| US3856992A (en) * | 1971-10-06 | 1974-12-24 | D Cooper | Multidirectional sound reproduction |
| US3906156A (en) * | 1971-10-06 | 1975-09-16 | Duane H Cooper | Signal matrixing for directional reproduction of sound |
| JPS5313962B2 (en, 2012) * | 1971-12-21 | 1978-05-13 | ||
| JPS5210364B2 (en, 2012) * | 1972-05-02 | 1977-03-23 | ||
| US3824342A (en) * | 1972-05-09 | 1974-07-16 | Rca Corp | Omnidirectional sound field reproducing system |
| US3883692A (en) * | 1972-06-16 | 1975-05-13 | Sony Corp | Decoder apparatus with logic circuit for use with a four channel stereo |
| JPS5236681B2 (en, 2012) * | 1972-11-30 | 1977-09-17 |
-
1974
- 1974-03-26 GB GB13292/74A patent/GB1494751A/en not_active Expired
-
1975
- 1975-03-14 CA CA222,146A patent/CA1020095A/en not_active Expired
- 1975-03-20 DE DE19752512287 patent/DE2512287A1/de active Granted
- 1975-03-21 DK DK120075A patent/DK120075A/da not_active Application Discontinuation
- 1975-03-21 US US05/560,865 patent/US3997725A/en not_active Expired - Lifetime
- 1975-03-25 CH CH383175A patent/CH617303A5/fr not_active IP Right Cessation
- 1975-03-25 NL NLAANVRAGE7503576,A patent/NL181068C/xx active Search and Examination
- 1975-03-26 FR FR7509457A patent/FR2266411B1/fr not_active Expired
- 1975-03-26 JP JP50037386A patent/JPS5943880B2/ja not_active Expired
- 1975-03-26 IT IT21652/75A patent/IT1034536B/it active
-
1977
- 1977-05-11 CH CH589977A patent/CH625660A5/fr not_active IP Right Cessation
-
1984
- 1984-06-07 JP JP59117438A patent/JPS6022898A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2266411A1 (en, 2012) | 1975-10-24 |
| NL7503576A (nl) | 1975-09-30 |
| DE2512287C2 (en, 2012) | 1988-04-07 |
| CA1020095A (en) | 1977-11-01 |
| NL181068C (nl) | 1987-06-01 |
| CH617303A5 (en, 2012) | 1980-05-14 |
| GB1494751A (en) | 1977-12-14 |
| JPS6022898A (ja) | 1985-02-05 |
| JPH0137080B2 (en, 2012) | 1989-08-03 |
| DK120075A (en, 2012) | 1975-09-27 |
| FR2266411B1 (en, 2012) | 1983-07-08 |
| IT1034536B (it) | 1979-10-10 |
| DE2512287A1 (de) | 1975-10-09 |
| JPS50131501A (en, 2012) | 1975-10-17 |
| JPS5943880B2 (ja) | 1984-10-25 |
| US3997725A (en) | 1976-12-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUE | Assignment |
Owner name: BRITISH TECHNOLOGY GROUP LTD |
|
| PL | Patent ceased | ||
| PL | Patent ceased |