WO1998012827A1 - Multichannel spectral mapping audio apparatus and method - Google Patents
Multichannel spectral mapping audio apparatus and method Download PDFInfo
- Publication number
- WO1998012827A1 WO1998012827A1 PCT/US1997/017321 US9717321W WO9812827A1 WO 1998012827 A1 WO1998012827 A1 WO 1998012827A1 US 9717321 W US9717321 W US 9717321W WO 9812827 A1 WO9812827 A1 WO 9812827A1
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- WO
- WIPO (PCT)
- Prior art keywords
- channels
- channel
- audio signal
- coefficients
- signal
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/86—Arrangements characterised by the broadcast information itself
- H04H20/88—Stereophonic broadcast systems
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/16—Vocoder architecture
- G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/44—Arrangements characterised by circuits or components specially adapted for broadcast
- H04H20/46—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95
- H04H20/47—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95 specially adapted for stereophonic broadcast systems
- H04H20/48—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95 specially adapted for stereophonic broadcast systems for FM stereophonic broadcast systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/86—Arrangements characterised by the broadcast information itself
- H04H20/88—Stereophonic broadcast systems
- H04H20/89—Stereophonic broadcast systems using three or more audio channels, e.g. triphonic or quadraphonic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/02—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information
- H04H60/04—Studio equipment; Interconnection of studios
-
- 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
-
- 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
- H04S5/02—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 four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals
-
- 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
- H04S2420/07—Synergistic effects of band splitting and sub-band processing
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97942684.8A EP1013018B1 (en) | 1996-09-19 | 1997-09-15 | Multichannel spectral mapping audio apparatus and method |
AU44324/97A AU723698B2 (en) | 1996-09-19 | 1997-09-15 | Multichannel spectral mapping audio apparatus and method |
JP51502498A JP3529390B2 (en) | 1996-09-19 | 1997-09-15 | Multi-channel spectral mapping audio apparatus and method |
CA002266324A CA2266324C (en) | 1996-09-19 | 1997-09-15 | Multichannel spectral mapping audio apparatus and method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/715,085 | 1996-09-19 | ||
US08/715,085 US6252965B1 (en) | 1996-09-19 | 1996-09-19 | Multichannel spectral mapping audio apparatus and method |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998012827A1 true WO1998012827A1 (en) | 1998-03-26 |
Family
ID=24872624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1997/017321 WO1998012827A1 (en) | 1996-09-19 | 1997-09-15 | Multichannel spectral mapping audio apparatus and method |
Country Status (6)
Country | Link |
---|---|
US (25) | US6252965B1 (en) |
EP (7) | EP1873944B1 (en) |
JP (1) | JP3529390B2 (en) |
AU (1) | AU723698B2 (en) |
CA (1) | CA2266324C (en) |
WO (1) | WO1998012827A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8818541B2 (en) | 2009-01-16 | 2014-08-26 | Dolby International Ab | Cross product enhanced harmonic transposition |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6252965B1 (en) * | 1996-09-19 | 2001-06-26 | Terry D. Beard | Multichannel spectral mapping audio apparatus and method |
KR100335611B1 (en) * | 1997-11-20 | 2002-10-09 | 삼성전자 주식회사 | Scalable stereo audio encoding/decoding method and apparatus |
JP3912922B2 (en) * | 1999-01-29 | 2007-05-09 | パイオニア株式会社 | Recording medium, recording apparatus and reproducing apparatus, recording method and reproducing method |
US7088740B1 (en) | 2000-12-21 | 2006-08-08 | Bae Systems Information And Electronic Systems Integration Inc | Digital FM radio system |
US7454257B2 (en) * | 2001-02-08 | 2008-11-18 | Warner Music Group | Apparatus and method for down converting multichannel programs to dual channel programs using a smart coefficient generator |
US20040125707A1 (en) * | 2002-04-05 | 2004-07-01 | Rodolfo Vargas | Retrieving content of various types with a conversion device attachable to audio outputs of an audio CD player |
US7461392B2 (en) * | 2002-07-01 | 2008-12-02 | Microsoft Corporation | System and method for identifying and segmenting repeating media objects embedded in a stream |
US20050047607A1 (en) * | 2003-09-03 | 2005-03-03 | Freiheit Ronald R. | System and method for sharing acoustical signal control among acoustical virtual environments |
CN1981326B (en) * | 2004-07-02 | 2011-05-04 | 松下电器产业株式会社 | Audio signal decoding device and method, audio signal encoding device and method |
JP4988717B2 (en) | 2005-05-26 | 2012-08-01 | エルジー エレクトロニクス インコーポレイティド | Audio signal decoding method and apparatus |
WO2006126843A2 (en) * | 2005-05-26 | 2006-11-30 | Lg Electronics Inc. | Method and apparatus for decoding audio signal |
ES2446245T3 (en) * | 2006-01-19 | 2014-03-06 | Lg Electronics Inc. | Method and apparatus for processing a media signal |
WO2007091845A1 (en) | 2006-02-07 | 2007-08-16 | Lg Electronics Inc. | Apparatus and method for encoding/decoding signal |
US20080080722A1 (en) * | 2006-09-29 | 2008-04-03 | Carroll Tim J | Loudness controller with remote and local control |
US8855334B1 (en) * | 2009-05-21 | 2014-10-07 | Funmobility, Inc. | Mixed content for a communications device |
WO2011020065A1 (en) * | 2009-08-14 | 2011-02-17 | Srs Labs, Inc. | Object-oriented audio streaming system |
KR20110022252A (en) * | 2009-08-27 | 2011-03-07 | 삼성전자주식회사 | Method and apparatus for encoding/decoding stereo audio |
US8908874B2 (en) | 2010-09-08 | 2014-12-09 | Dts, Inc. | Spatial audio encoding and reproduction |
FR2971972B1 (en) | 2011-02-28 | 2013-03-08 | Jean Pierre Lazzari | METHOD FOR FORMING A REFLECTIVE COLOR-LASER COLOR LASER IMAGE AND DOCUMENT WHEREIN A COLOR LASER IMAGE IS SO REALIZED |
WO2012122397A1 (en) | 2011-03-09 | 2012-09-13 | Srs Labs, Inc. | System for dynamically creating and rendering audio objects |
MY166267A (en) | 2011-03-28 | 2018-06-22 | Dolby Laboratories Licensing Corp | Reduced complexity transform for a low-frequency-effects channel |
ITRM20110245A1 (en) * | 2011-05-19 | 2012-11-20 | Saar S R L | METHOD AND AUDIO PROCESSING EQUIPMENT. |
CN105264600B (en) | 2013-04-05 | 2019-06-07 | Dts有限责任公司 | Hierarchical audio coding and transmission |
SG11201602628TA (en) * | 2013-10-21 | 2016-05-30 | Dolby Int Ab | Decorrelator structure for parametric reconstruction of audio signals |
US20170003966A1 (en) * | 2015-06-30 | 2017-01-05 | Microsoft Technology Licensing, Llc | Processor with instruction for interpolating table lookup values |
US10791153B2 (en) * | 2017-02-02 | 2020-09-29 | Bose Corporation | Conference room audio setup |
US9820073B1 (en) | 2017-05-10 | 2017-11-14 | Tls Corp. | Extracting a common signal from multiple audio signals |
EP3422738A1 (en) * | 2017-06-29 | 2019-01-02 | Nxp B.V. | Audio processor for vehicle comprising two modes of operation depending on rear seat occupation |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3746792A (en) | 1968-01-11 | 1973-07-17 | P Scheiber | Multidirectional sound system |
US3959590A (en) | 1969-01-11 | 1976-05-25 | Peter Scheiber | Stereophonic sound system |
WO1992012607A1 (en) | 1991-01-08 | 1992-07-23 | Dolby Laboratories Licensing Corporation | Encoder/decoder for multidimensional sound fields |
US5136650A (en) * | 1991-01-09 | 1992-08-04 | Lexicon, Inc. | Sound reproduction |
EP0540329A2 (en) | 1991-10-30 | 1993-05-05 | Salon Televisiotehdas Oy | Method for storing a multichannel audio signal on a compact disc |
US5228093A (en) | 1991-10-24 | 1993-07-13 | Agnello Anthony M | Method for mixing source audio signals and an audio signal mixing system |
DE4209544A1 (en) | 1992-03-24 | 1993-09-30 | Inst Rundfunktechnik Gmbh | Method for transmitting or storing digitized, multi-channel audio signals |
US5319713A (en) | 1992-11-12 | 1994-06-07 | Rocktron Corporation | Multi dimensional sound circuit |
US5333201A (en) | 1992-11-12 | 1994-07-26 | Rocktron Corporation | Multi dimensional sound circuit |
EP0688113A2 (en) | 1994-06-13 | 1995-12-20 | Sony Corporation | Method and apparatus for encoding and decoding digital audio signals and apparatus for recording digital audio |
EP0730365A2 (en) | 1995-03-01 | 1996-09-04 | Nippon Telegraph And Telephone Corporation | Audio communication control unit |
US5579124A (en) * | 1992-11-16 | 1996-11-26 | The Arbitron Company | Method and apparatus for encoding/decoding broadcast or recorded segments and monitoring audience exposure thereto |
Family Cites Families (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4018992A (en) | 1975-09-25 | 1977-04-19 | Clifford H. Moulton | Decoder for quadraphonic playback |
US4449229A (en) * | 1980-10-24 | 1984-05-15 | Pioneer Electronic Corporation | Signal processing circuit |
US4517763A (en) * | 1983-05-11 | 1985-05-21 | University Of Guelph | Hybridization process utilizing a combination of cytoplasmic male sterility and herbicide tolerance |
US4677246A (en) * | 1985-04-26 | 1987-06-30 | Dekalb-Pfizer Genetics | Protogyny in Zea mays |
US4815132A (en) * | 1985-08-30 | 1989-03-21 | Kabushiki Kaisha Toshiba | Stereophonic voice signal transmission system |
US4658084A (en) * | 1985-11-14 | 1987-04-14 | University Of Guelph | Hybridization using cytoplasmic male sterility and herbicide tolerance from nuclear genes |
US4658085A (en) * | 1985-11-14 | 1987-04-14 | University Of Guelph | Hybridization using cytoplasmic male sterility, cytoplasmic herbicide tolerance, and herbicide tolerance from nuclear genes |
US4899384A (en) * | 1986-08-25 | 1990-02-06 | Ibm Corporation | Table controlled dynamic bit allocation in a variable rate sub-band speech coder |
GB8628046D0 (en) * | 1986-11-24 | 1986-12-31 | British Telecomm | Transmission system |
US4731499A (en) * | 1987-01-29 | 1988-03-15 | Pioneer Hi-Bred International, Inc. | Hybrid corn plant and seed |
DK163400C (en) | 1989-05-29 | 1992-07-13 | Brueel & Kjaer As | PROBE MICROPHONE |
JPH0479599A (en) | 1990-07-19 | 1992-03-12 | Victor Co Of Japan Ltd | Static variable acoustic signal recording and reproducing device |
JPH04225700A (en) | 1990-12-27 | 1992-08-14 | Matsushita Electric Ind Co Ltd | Audio reproducing device |
US5274740A (en) | 1991-01-08 | 1993-12-28 | Dolby Laboratories Licensing Corporation | Decoder for variable number of channel presentation of multidimensional sound fields |
US5632005A (en) | 1991-01-08 | 1997-05-20 | Ray Milton Dolby | Encoder/decoder for multidimensional sound fields |
FR2680924B1 (en) * | 1991-09-03 | 1997-06-06 | France Telecom | FILTERING METHOD SUITABLE FOR A SIGNAL TRANSFORMED INTO SUB-BANDS, AND CORRESPONDING FILTERING DEVICE. |
US5276263A (en) * | 1991-12-06 | 1994-01-04 | Holden's Foundation Seeds, Inc. | Inbred corn line LH216 |
EP0553832B1 (en) * | 1992-01-30 | 1998-07-08 | Matsushita Electric Industrial Co., Ltd. | Sound field controller |
US5285498A (en) * | 1992-03-02 | 1994-02-08 | At&T Bell Laboratories | Method and apparatus for coding audio signals based on perceptual model |
FR2691867B1 (en) * | 1992-06-02 | 1995-10-20 | Thouzery Jean | PROCESS FOR SPATIALLY DISTRIBUTING A SINGLE - SOUND SOUND SOURCE. |
GB9211756D0 (en) * | 1992-06-03 | 1992-07-15 | Gerzon Michael A | Stereophonic directional dispersion method |
DE4222623C2 (en) | 1992-07-10 | 1996-07-11 | Inst Rundfunktechnik Gmbh | Process for the transmission or storage of digitized sound signals |
US5475628A (en) * | 1992-09-30 | 1995-12-12 | Analog Devices, Inc. | Asynchronous digital sample rate converter |
ES2165370T3 (en) | 1993-06-22 | 2002-03-16 | Thomson Brandt Gmbh | METHOD FOR OBTAINING A MULTICHANNEL DECODING MATRIX. |
US5542054A (en) * | 1993-12-22 | 1996-07-30 | Batten, Jr.; George W. | Artificial neurons using delta-sigma modulation |
US5459790A (en) | 1994-03-08 | 1995-10-17 | Sonics Associates, Ltd. | Personal sound system with virtually positioned lateral speakers |
US5523520A (en) * | 1994-06-24 | 1996-06-04 | Goldsmith Seeds Inc. | Mutant dwarfism gene of petunia |
JP2914891B2 (en) * | 1995-07-05 | 1999-07-05 | 株式会社東芝 | X-ray computed tomography apparatus |
KR0175515B1 (en) | 1996-04-15 | 1999-04-01 | 김광호 | Apparatus and Method for Implementing Table Survey Stereo |
US6252965B1 (en) | 1996-09-19 | 2001-06-26 | Terry D. Beard | Multichannel spectral mapping audio apparatus and method |
US5773683A (en) * | 1996-12-06 | 1998-06-30 | Holden's Foundation Seeds, Inc. | Inbred corn line LH283 |
US6225965B1 (en) * | 1999-06-18 | 2001-05-01 | Trw Inc. | Compact mesh stowage for deployable reflectors |
US6433261B2 (en) * | 2000-02-18 | 2002-08-13 | Dekalb Genetics Corporation | Inbred corn plant 89AHD12 and seeds thereof |
JP3997423B2 (en) * | 2003-04-17 | 2007-10-24 | ソニー株式会社 | Information processing apparatus, imaging apparatus, and information classification processing method |
JP4409223B2 (en) * | 2003-07-24 | 2010-02-03 | 東芝医用システムエンジニアリング株式会社 | X-ray CT apparatus and back projection calculation method for X-ray CT |
US20050226365A1 (en) * | 2004-03-30 | 2005-10-13 | Kabushiki Kaisha Toshiba | Radius-in-image dependent detector row filtering for windmill artifact reduction |
US7623691B2 (en) * | 2004-08-06 | 2009-11-24 | Kabushiki Kaisha Toshiba | Method for helical windmill artifact reduction with noise restoration for helical multislice CT |
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1996
- 1996-09-19 US US08/715,085 patent/US6252965B1/en not_active Expired - Lifetime
-
1997
- 1997-09-15 EP EP07018824.8A patent/EP1873944B1/en not_active Expired - Lifetime
- 1997-09-15 EP EP07018822.2A patent/EP1873942B1/en not_active Expired - Lifetime
- 1997-09-15 AU AU44324/97A patent/AU723698B2/en not_active Expired
- 1997-09-15 JP JP51502498A patent/JP3529390B2/en not_active Expired - Lifetime
- 1997-09-15 EP EP07018823.0A patent/EP1873943B1/en not_active Expired - Lifetime
- 1997-09-15 EP EP97942684.8A patent/EP1013018B1/en not_active Expired - Lifetime
- 1997-09-15 CA CA002266324A patent/CA2266324C/en not_active Expired - Lifetime
- 1997-09-15 EP EP07018827.1A patent/EP1873945B1/en not_active Expired - Lifetime
- 1997-09-15 EP EP07018829.7A patent/EP1873946B1/en not_active Expired - Lifetime
- 1997-09-15 EP EP07018830.5A patent/EP1873947B1/en not_active Expired - Lifetime
- 1997-09-15 WO PCT/US1997/017321 patent/WO1998012827A1/en active Application Filing
-
2001
- 2001-06-25 US US09/891,941 patent/US7164769B2/en not_active Expired - Fee Related
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2005
- 2005-10-25 US US11/258,790 patent/US7773756B2/en not_active Expired - Fee Related
- 2005-12-08 US US11/298,090 patent/US8014535B2/en not_active Expired - Fee Related
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2006
- 2006-09-01 US US11/515,400 patent/US8300833B2/en not_active Expired - Fee Related
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2007
- 2007-05-08 US US11/745,910 patent/US7769179B2/en not_active Expired - Fee Related
- 2007-05-08 US US11/745,952 patent/US7876905B2/en not_active Expired - Fee Related
- 2007-05-08 US US11/745,959 patent/US7796765B2/en not_active Expired - Fee Related
- 2007-05-08 US US11/745,883 patent/US7769178B2/en not_active Expired - Fee Related
- 2007-05-08 US US11/745,991 patent/US7792308B2/en not_active Expired - Fee Related
- 2007-05-08 US US11/745,969 patent/US7864965B2/en not_active Expired - Fee Related
- 2007-05-08 US US11/745,934 patent/US7792304B2/en not_active Expired - Fee Related
- 2007-05-08 US US11/745,922 patent/US7769180B2/en not_active Expired - Fee Related
- 2007-05-08 US US11/745,927 patent/US7864964B2/en not_active Expired - Fee Related
- 2007-05-08 US US11/745,944 patent/US7792307B2/en not_active Expired - Fee Related
- 2007-05-08 US US11/745,853 patent/US7864966B2/en not_active Expired - Fee Related
- 2007-05-08 US US11/745,992 patent/US7769181B2/en not_active Expired - Fee Related
- 2007-05-08 US US11/745,940 patent/US8027480B2/en not_active Expired - Fee Related
- 2007-05-08 US US11/745,871 patent/US7783052B2/en not_active Expired - Fee Related
- 2007-05-08 US US11/745,900 patent/US7792306B2/en not_active Expired - Fee Related
- 2007-05-08 US US11/746,000 patent/US7873171B2/en not_active Expired - Fee Related
- 2007-05-08 US US11/745,880 patent/US7792305B2/en not_active Expired - Fee Related
- 2007-05-08 US US11/745,995 patent/US7773758B2/en not_active Expired - Fee Related
- 2007-05-08 US US11/745,982 patent/US7773757B2/en not_active Expired - Fee Related
- 2007-05-08 US US11/745,907 patent/US7965849B2/en not_active Expired - Fee Related
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3746792A (en) | 1968-01-11 | 1973-07-17 | P Scheiber | Multidirectional sound system |
US3959590A (en) | 1969-01-11 | 1976-05-25 | Peter Scheiber | Stereophonic sound system |
WO1992012607A1 (en) | 1991-01-08 | 1992-07-23 | Dolby Laboratories Licensing Corporation | Encoder/decoder for multidimensional sound fields |
US5136650A (en) * | 1991-01-09 | 1992-08-04 | Lexicon, Inc. | Sound reproduction |
US5228093A (en) | 1991-10-24 | 1993-07-13 | Agnello Anthony M | Method for mixing source audio signals and an audio signal mixing system |
EP0540329A2 (en) | 1991-10-30 | 1993-05-05 | Salon Televisiotehdas Oy | Method for storing a multichannel audio signal on a compact disc |
DE4209544A1 (en) | 1992-03-24 | 1993-09-30 | Inst Rundfunktechnik Gmbh | Method for transmitting or storing digitized, multi-channel audio signals |
US5319713A (en) | 1992-11-12 | 1994-06-07 | Rocktron Corporation | Multi dimensional sound circuit |
US5333201A (en) | 1992-11-12 | 1994-07-26 | Rocktron Corporation | Multi dimensional sound circuit |
US5579124A (en) * | 1992-11-16 | 1996-11-26 | The Arbitron Company | Method and apparatus for encoding/decoding broadcast or recorded segments and monitoring audience exposure thereto |
EP0688113A2 (en) | 1994-06-13 | 1995-12-20 | Sony Corporation | Method and apparatus for encoding and decoding digital audio signals and apparatus for recording digital audio |
EP0730365A2 (en) | 1995-03-01 | 1996-09-04 | Nippon Telegraph And Telephone Corporation | Audio communication control unit |
Non-Patent Citations (3)
Title |
---|
DRESSIER, DOLBY PRO LOGIC SURROUND DECODER - PRINCIPLES OF OPERATION, Retrieved from the Internet <URL:http://www.dolby.com/ht/dspl/whtppr.html> |
See also references of EP1013018A4 * |
WALLER, JR.: "The Circle Surround® Audio Surround Systems", ROCKTRON CORP. |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8818541B2 (en) | 2009-01-16 | 2014-08-26 | Dolby International Ab | Cross product enhanced harmonic transposition |
US9799346B2 (en) | 2009-01-16 | 2017-10-24 | Dolby International Ab | Cross product enhanced harmonic transposition |
US10192565B2 (en) | 2009-01-16 | 2019-01-29 | Dolby International Ab | Cross product enhanced harmonic transposition |
US10586550B2 (en) | 2009-01-16 | 2020-03-10 | Dolby International Ab | Cross product enhanced harmonic transposition |
US11031025B2 (en) | 2009-01-16 | 2021-06-08 | Dolby International Ab | Cross product enhanced harmonic transposition |
US11682410B2 (en) | 2009-01-16 | 2023-06-20 | Dolby International Ab | Cross product enhanced harmonic transposition |
US11935551B2 (en) | 2009-01-16 | 2024-03-19 | Dolby International Ab | Cross product enhanced harmonic transposition |
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US7769181B2 (en) | Multichannel spectral mapping audio apparatus and method |
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