KR100550399B1 - 다중 오디오 채널을 저 비트율로 부호화 및 복호화하기위한 장치와 그 방법 - Google Patents

다중 오디오 채널을 저 비트율로 부호화 및 복호화하기위한 장치와 그 방법 Download PDF

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KR100550399B1
KR100550399B1 KR1019997012376A KR19997012376A KR100550399B1 KR 100550399 B1 KR100550399 B1 KR 100550399B1 KR 1019997012376 A KR1019997012376 A KR 1019997012376A KR 19997012376 A KR19997012376 A KR 19997012376A KR 100550399 B1 KR100550399 B1 KR 100550399B1
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signal
signals
subband
composite
spatial
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KR20010020540A (ko
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마크 에프. 데이비스
매츄 씨. 펠러즈
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돌비 레버러토리즈 라이쎈싱 코오포레이션
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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; ELECTRIC HEARING AIDS; 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)
KR1019997012376A 1997-07-16 1998-06-19 다중 오디오 채널을 저 비트율로 부호화 및 복호화하기위한 장치와 그 방법 Expired - Fee Related KR100550399B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/895,496 1997-07-16
US8/895,496 1997-07-16
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
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

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KR20010020540A KR20010020540A (ko) 2001-03-15
KR100550399B1 true KR100550399B1 (ko) 2006-02-08

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KR1019997012376A Expired - Fee Related KR100550399B1 (ko) 1997-07-16 1998-06-19 다중 오디오 채널을 저 비트율로 부호화 및 복호화하기위한 장치와 그 방법

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

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ATE215295T1 (de) 2002-04-15
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AU746416B2 (en) 2002-05-02
CN1264533A (zh) 2000-08-23
CA2295505C (en) 2008-09-02
CA2295505A1 (en) 1999-01-28
JP2001510953A (ja) 2001-08-07
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DE69804478D1 (de) 2002-05-02
KR20010020540A (ko) 2001-03-15
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US5890125A (en) 1999-03-30
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