HK1126888A1 - Enhanced coding and parameter representation of multichannel downmixed object coding - Google Patents

Enhanced coding and parameter representation of multichannel downmixed object coding

Info

Publication number
HK1126888A1
HK1126888A1 HK09105759.1A HK09105759A HK1126888A1 HK 1126888 A1 HK1126888 A1 HK 1126888A1 HK 09105759 A HK09105759 A HK 09105759A HK 1126888 A1 HK1126888 A1 HK 1126888A1
Authority
HK
Hong Kong
Prior art keywords
audio
generating
coding
output
downmix information
Prior art date
Application number
HK09105759.1A
Other languages
English (en)
Inventor
Jonas Engdegard
Lars Villemoes
Heiko Purnhagen
Barbara Resch
Original Assignee
Dolby Int Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dolby Int Ab filed Critical Dolby Int Ab
Priority to HK09111503.8A priority Critical patent/HK1133116A1/xx
Publication of HK1126888A1 publication Critical patent/HK1126888A1/xx

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
    • G10L19/18—Vocoders using multiple modes
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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 TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
    • G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
    • 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 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/03—Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/11—Positioning of individual sound objects, e.g. moving airplane, within a sound field
    • 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
    • H04S2420/03—Application of parametric coding in stereophonic audio systems
    • 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 

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Mathematical Physics (AREA)
  • Mathematical Analysis (AREA)
  • Algebra (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Electron Tubes For Measurement (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Sorting Of Articles (AREA)
  • Optical Measuring Cells (AREA)
  • Telephone Function (AREA)
HK09105759.1A 2006-10-16 2009-06-26 Enhanced coding and parameter representation of multichannel downmixed object coding HK1126888A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HK09111503.8A HK1133116A1 (en) 2006-10-16 2009-06-26 Enhanced coding and parameter representation of multichannel downmixed object coding

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US82964906P 2006-10-16 2006-10-16
PCT/EP2007/008683 WO2008046531A1 (fr) 2006-10-16 2007-10-05 Codage amélioré et représentation de paramètres d'un codage d'objet à abaissement de fréquence multi-canal

Publications (1)

Publication Number Publication Date
HK1126888A1 true HK1126888A1 (en) 2009-09-11

Family

ID=38810466

Family Applications (3)

Application Number Title Priority Date Filing Date
HK09105759.1A HK1126888A1 (en) 2006-10-16 2009-06-26 Enhanced coding and parameter representation of multichannel downmixed object coding
HK12103182.8A HK1162736A1 (en) 2006-10-16 2009-06-26 Enhanced coding and parameter representation of multichannel downmixed object coding
HK09111503.8A HK1133116A1 (en) 2006-10-16 2009-06-26 Enhanced coding and parameter representation of multichannel downmixed object coding

Family Applications After (2)

Application Number Title Priority Date Filing Date
HK12103182.8A HK1162736A1 (en) 2006-10-16 2009-06-26 Enhanced coding and parameter representation of multichannel downmixed object coding
HK09111503.8A HK1133116A1 (en) 2006-10-16 2009-06-26 Enhanced coding and parameter representation of multichannel downmixed object coding

Country Status (22)

Country Link
US (2) US9565509B2 (fr)
EP (3) EP2372701B1 (fr)
JP (3) JP5270557B2 (fr)
KR (2) KR101012259B1 (fr)
CN (3) CN101529501B (fr)
AT (2) ATE503245T1 (fr)
AU (2) AU2007312598B2 (fr)
BR (1) BRPI0715559B1 (fr)
CA (3) CA2874454C (fr)
DE (1) DE602007013415D1 (fr)
ES (1) ES2378734T3 (fr)
HK (3) HK1126888A1 (fr)
MX (1) MX2009003570A (fr)
MY (1) MY145497A (fr)
NO (1) NO340450B1 (fr)
PL (1) PL2068307T3 (fr)
PT (1) PT2372701E (fr)
RU (1) RU2430430C2 (fr)
SG (1) SG175632A1 (fr)
TW (1) TWI347590B (fr)
UA (1) UA94117C2 (fr)
WO (1) WO2008046531A1 (fr)

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BRPI0715559A2 (pt) 2013-07-02
PL2068307T3 (pl) 2012-07-31
CN101529501B (zh) 2013-08-07
WO2008046531A1 (fr) 2008-04-24
BRPI0715559B1 (pt) 2021-12-07
MX2009003570A (es) 2009-05-28
EP2068307A1 (fr) 2009-06-10
US20170084285A1 (en) 2017-03-23
EP2054875A1 (fr) 2009-05-06
HK1133116A1 (en) 2010-03-12
CN102892070A (zh) 2013-01-23
JP2013190810A (ja) 2013-09-26
JP5592974B2 (ja) 2014-09-17
AU2007312598A1 (en) 2008-04-24
JP2010507115A (ja) 2010-03-04
PT2372701E (pt) 2014-03-20
EP2068307B1 (fr) 2011-12-07
JP5270557B2 (ja) 2013-08-21
TWI347590B (en) 2011-08-21
RU2011102416A (ru) 2012-07-27
KR101103987B1 (ko) 2012-01-06
AU2007312598B2 (en) 2011-01-20
SG175632A1 (en) 2011-11-28
EP2372701B1 (fr) 2013-12-11
CA2874454A1 (fr) 2008-04-24
TW200828269A (en) 2008-07-01
KR20090057131A (ko) 2009-06-03
MY145497A (en) 2012-02-29
US9565509B2 (en) 2017-02-07
JP2012141633A (ja) 2012-07-26
NO340450B1 (no) 2017-04-24
CN103400583A (zh) 2013-11-20
CN101529501A (zh) 2009-09-09

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