CA2266324A1 - Multichannel spectral mapping audio apparatus and method - Google Patents
Multichannel spectral mapping audio apparatus and methodInfo
- Publication number
- CA2266324A1 CA2266324A1 CA002266324A CA2266324A CA2266324A1 CA 2266324 A1 CA2266324 A1 CA 2266324A1 CA 002266324 A CA002266324 A CA 002266324A CA 2266324 A CA2266324 A CA 2266324A CA 2266324 A1 CA2266324 A1 CA 2266324A1
- Authority
- CA
- Canada
- Prior art keywords
- multichannel
- stereo
- spectral mapping
- audio apparatus
- audio
- 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.)
- Granted
Links
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
A method and circuit for deriving a set of multichannel audio signals (10) from a conventional monaural or stereo audio signals (1) uses an auxiliary multichannel spectral mapping data steam (90,92). Audio can be played back in stereo and multichannel formats from a conventional stereo signal (40) on compact discs (88), FM radio, or other stereo or monaural delivery systems (5). The invention reduces the data rate needed for the transmission of multichannel digital audio.
Applications Claiming Priority (3)
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 |
PCT/US1997/017321 WO1998012827A1 (en) | 1996-09-19 | 1997-09-15 | Multichannel spectral mapping audio apparatus and method |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2266324A1 true CA2266324A1 (en) | 1998-03-26 |
CA2266324C CA2266324C (en) | 2001-12-11 |
Family
ID=24872624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002266324A Expired - Lifetime CA2266324C (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) | EP1873947B1 (en) |
JP (1) | JP3529390B2 (en) |
AU (1) | AU723698B2 (en) |
CA (1) | CA2266324C (en) |
WO (1) | WO1998012827A1 (en) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
US7756713B2 (en) * | 2004-07-02 | 2010-07-13 | Panasonic Corporation | Audio signal decoding device which decodes a downmix channel signal and audio signal encoding device which encodes audio channel signals together with spatial audio information |
WO2006126843A2 (en) * | 2005-05-26 | 2006-11-30 | Lg Electronics Inc. | Method and apparatus for decoding audio signal |
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 |
JP4814344B2 (en) * | 2006-01-19 | 2011-11-16 | エルジー エレクトロニクス インコーポレイティド | Media signal processing method and apparatus |
KR20080093419A (en) | 2006-02-07 | 2008-10-21 | 엘지전자 주식회사 | 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 |
PL2620941T3 (en) | 2009-01-16 | 2019-11-29 | Dolby Int Ab | Cross product enhanced harmonic transposition |
US8855334B1 (en) * | 2009-05-21 | 2014-10-07 | Funmobility, Inc. | Mixed content for a communications device |
US8396575B2 (en) | 2009-08-14 | 2013-03-12 | Dts Llc | 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 |
US9026450B2 (en) | 2011-03-09 | 2015-05-05 | Dts Llc | System for dynamically creating and rendering audio objects |
WO2012134851A1 (en) | 2011-03-28 | 2012-10-04 | Dolby Laboratories Licensing Corporation | 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 |
JP6201047B2 (en) * | 2013-10-21 | 2017-09-20 | ドルビー・インターナショナル・アーベー | A 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 |
WO2018144850A1 (en) * | 2017-02-02 | 2018-08-09 | 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 |
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1996
- 1996-09-19 US US08/715,085 patent/US6252965B1/en not_active Expired - Lifetime
-
1997
- 1997-09-15 JP JP51502498A patent/JP3529390B2/en not_active Expired - Lifetime
- 1997-09-15 EP EP07018830.5A patent/EP1873947B1/en not_active Expired - Lifetime
- 1997-09-15 EP EP07018829.7A patent/EP1873946B1/en not_active Expired - Lifetime
- 1997-09-15 AU AU44324/97A patent/AU723698B2/en not_active Expired
- 1997-09-15 CA CA002266324A patent/CA2266324C/en not_active Expired - Lifetime
- 1997-09-15 EP EP07018824.8A patent/EP1873944B1/en not_active Expired - Lifetime
- 1997-09-15 WO PCT/US1997/017321 patent/WO1998012827A1/en active Application Filing
- 1997-09-15 EP EP97942684.8A patent/EP1013018B1/en not_active Expired - Lifetime
- 1997-09-15 EP EP07018827.1A patent/EP1873945B1/en not_active Expired - Lifetime
- 1997-09-15 EP EP07018823.0A patent/EP1873943B1/en not_active Expired - Lifetime
- 1997-09-15 EP EP07018822.2A patent/EP1873942B1/en not_active Expired - Lifetime
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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 US11/745,940 patent/US8027480B2/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 US11/745,927 patent/US7864964B2/en not_active Expired - Fee Related
- 2007-05-08 US US11/745,907 patent/US7965849B2/en not_active Expired - Fee Related
- 2007-05-08 US US11/745,910 patent/US7769179B2/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 US11/745,900 patent/US7792306B2/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 US11/745,944 patent/US7792307B2/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 US11/745,959 patent/US7796765B2/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 US11/745,871 patent/US7783052B2/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 US11/745,922 patent/US7769180B2/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 US11/745,991 patent/US7792308B2/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 US11/745,995 patent/US7773758B2/en not_active Expired - Fee Related
- 2007-05-08 US US11/745,969 patent/US7864965B2/en not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20170915 |