CA997277A - Signal matrixing for directional reproduction of sound - Google Patents
Signal matrixing for directional reproduction of soundInfo
- Publication number
- CA997277A CA997277A CA153,095A CA153095A CA997277A CA 997277 A CA997277 A CA 997277A CA 153095 A CA153095 A CA 153095A CA 997277 A CA997277 A CA 997277A
- Authority
- CA
- Canada
- Prior art keywords
- sound
- directional reproduction
- matrixing
- signal matrixing
- 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.)
- Expired
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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00992—Circuits for stereophonic or quadraphonic recording or reproducing
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Mathematical Physics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- General Physics & Mathematics (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Acoustics & Sound (AREA)
- Algebra (AREA)
- Stereophonic System (AREA)
- Stereo-Broadcasting Methods (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00187065A US3856992A (en) | 1971-10-06 | 1971-10-06 | Multidirectional sound reproduction |
US288873A US3906156A (en) | 1971-10-06 | 1972-09-13 | Signal matrixing for directional reproduction of sound |
Publications (1)
Publication Number | Publication Date |
---|---|
CA997277A true CA997277A (en) | 1976-09-21 |
Family
ID=26882689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA153,095A Expired CA997277A (en) | 1971-10-06 | 1972-10-03 | Signal matrixing for directional reproduction of sound |
Country Status (5)
Country | Link |
---|---|
US (1) | US3906156A (en) |
CA (1) | CA997277A (en) |
DE (1) | DE2249039C2 (en) |
FR (1) | FR2156168B1 (en) |
GB (1) | GB1411994A (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5521519B2 (en) * | 1973-05-10 | 1980-06-10 | ||
JPS5247884B2 (en) * | 1973-05-10 | 1977-12-06 | ||
US4085291A (en) * | 1971-10-06 | 1978-04-18 | Cooper Duane H | Synthetic supplementary channel matrix decoding systems |
DE2422471C2 (en) * | 1973-05-10 | 1982-11-25 | Cooper, Duane H., Dr., Champagne, Ill. | Arrangement for the transmission of multi-channel signals |
GB1494751A (en) * | 1974-03-26 | 1977-12-14 | Nat Res Dev | Sound reproduction systems |
JPS5230402A (en) * | 1975-09-04 | 1977-03-08 | Victor Co Of Japan Ltd | Multichannel stereo system |
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 |
US6118876A (en) * | 1995-09-07 | 2000-09-12 | Rep Investment Limited Liability Company | Surround sound speaker system for improved spatial effects |
US5708719A (en) * | 1995-09-07 | 1998-01-13 | Rep Investment Limited Liability Company | In-home theater surround sound speaker system |
US5930370A (en) * | 1995-09-07 | 1999-07-27 | Rep Investment Limited Liability | In-home theater surround sound speaker system |
US6603977B1 (en) * | 2000-02-04 | 2003-08-05 | Sbc Properties, Lp | Location information system for a wireless communication device and method therefor |
US8320584B2 (en) * | 2008-12-10 | 2012-11-27 | Sheets Laurence L | Method and system for performing audio signal processing |
US8259960B2 (en) * | 2009-09-11 | 2012-09-04 | BSG Laboratory, LLC | Phase layering apparatus and method for a complete audio signal |
CN106067996B (en) * | 2015-04-24 | 2019-09-17 | 松下知识产权经营株式会社 | Voice reproduction method, voice dialogue device |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA938560A (en) * | 1969-11-28 | 1973-12-18 | Victor Company Of Japan | System for recording and/or reproducing four channel signals on a record disc |
US3708623A (en) * | 1970-04-29 | 1973-01-02 | Quadracast Syst Inc | Compatible four channel fm system |
GB1359509A (en) | 1970-06-15 | 1974-07-10 | Scheiber P | Decoder apparatus for use in a multidirectional sound system |
JPS5033724B1 (en) * | 1970-11-09 | 1975-11-01 | ||
GB1369813A (en) | 1971-02-02 | 1974-10-09 | Nat Res Dev | Reproduction of sound |
US3745252A (en) | 1971-02-03 | 1973-07-10 | Columbia Broadcasting Syst Inc | Matrixes and decoders for quadruphonic records |
US3679832A (en) * | 1971-03-23 | 1972-07-25 | Bell Telephone Labor Inc | Three-channel fm stereo transmission |
US3761628A (en) * | 1972-04-13 | 1973-09-25 | Columbia Broadcasting Syst Inc | Stereo-quadraphonic matrix system with matrix or discrete sound reproduction capability |
-
1972
- 1972-09-13 US US288873A patent/US3906156A/en not_active Expired - Lifetime
- 1972-10-03 CA CA153,095A patent/CA997277A/en not_active Expired
- 1972-10-03 GB GB4555872A patent/GB1411994A/en not_active Expired
- 1972-10-06 FR FR7235624A patent/FR2156168B1/fr not_active Expired
- 1972-10-06 DE DE2249039A patent/DE2249039C2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2156168A1 (en) | 1973-05-25 |
US3906156A (en) | 1975-09-16 |
GB1411994A (en) | 1975-10-29 |
DE2249039C2 (en) | 1986-07-17 |
DE2249039A1 (en) | 1973-04-12 |
FR2156168B1 (en) | 1980-04-18 |
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