JP4223679B2 - 低ビットレート多重オーデイオチャンネル符号・復号方法及び装置 - Google Patents

低ビットレート多重オーデイオチャンネル符号・復号方法及び装置 Download PDF

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JP4223679B2
JP4223679B2 JP2000503606A JP2000503606A JP4223679B2 JP 4223679 B2 JP4223679 B2 JP 4223679B2 JP 2000503606 A JP2000503606 A JP 2000503606A JP 2000503606 A JP2000503606 A JP 2000503606A JP 4223679 B2 JP4223679 B2 JP 4223679B2
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signal
signals
subband
spatial characteristic
channel
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JP2001510953A5 (enExample
JP2001510953A (ja
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デイビス、マーク・エフ
フェラーズ、マシュー・シー
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Dolby Laboratories Licensing Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • 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 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—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 spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • G10L19/0208—Subband vocoders
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/665—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using psychoacoustic properties of the ear, e.g. masking effect
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
    • 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

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
JP2000503606A 1997-07-16 1998-06-19 低ビットレート多重オーデイオチャンネル符号・復号方法及び装置 Expired - Fee Related JP4223679B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/895,496 US5890125A (en) 1997-07-16 1997-07-16 Method and apparatus for encoding and decoding multiple audio channels at low bit rates using adaptive selection of encoding method
US08/895,496 1997-07-16
PCT/US1998/008647 WO1999004498A2 (en) 1997-07-16 1998-06-19 Method and apparatus for encoding and decoding multiple audio channels at low bit rates

Publications (3)

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JP2001510953A JP2001510953A (ja) 2001-08-07
JP2001510953A5 JP2001510953A5 (enExample) 2006-01-05
JP4223679B2 true JP4223679B2 (ja) 2009-02-12

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US (1) US5890125A (enExample)
EP (1) EP1016320B1 (enExample)
JP (1) JP4223679B2 (enExample)
KR (1) KR100550399B1 (enExample)
CN (1) CN1151705C (enExample)
AT (1) ATE215295T1 (enExample)
AU (1) AU746416B2 (enExample)
CA (1) CA2295505C (enExample)
DE (1) DE69804478T2 (enExample)
DK (1) DK1016320T3 (enExample)
ES (1) ES2171031T3 (enExample)
WO (1) WO1999004498A2 (enExample)

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CN1151705C (zh) 2004-05-26
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DE69804478D1 (de) 2002-05-02
DK1016320T3 (da) 2002-07-08
ES2171031T3 (es) 2002-08-16
ATE215295T1 (de) 2002-04-15
AU746416B2 (en) 2002-05-02
AU8138098A (en) 1999-02-10
EP1016320B1 (en) 2002-03-27
JP2001510953A (ja) 2001-08-07
WO1999004498A2 (en) 1999-01-28
DE69804478T2 (de) 2002-10-02
WO1999004498A3 (en) 1999-09-16
US5890125A (en) 1999-03-30
CA2295505A1 (en) 1999-01-28
KR20010020540A (ko) 2001-03-15
CA2295505C (en) 2008-09-02
CN1264533A (zh) 2000-08-23

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