KR102384348B1 - 오디오 인코더 및 디코더 - Google Patents

오디오 인코더 및 디코더 Download PDF

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KR102384348B1
KR102384348B1 KR1020217015014A KR20217015014A KR102384348B1 KR 102384348 B1 KR102384348 B1 KR 102384348B1 KR 1020217015014 A KR1020217015014 A KR 1020217015014A KR 20217015014 A KR20217015014 A KR 20217015014A KR 102384348 B1 KR102384348 B1 KR 102384348B1
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encoding
vector
elements
upmix matrix
audio
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KR20210060660A (ko
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레이프 요나스 사무엘손
헤이코 푸른하겐
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돌비 인터네셔널 에이비
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    • 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
    • G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
    • 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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • 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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G10L19/038—Vector quantisation, e.g. TwinVQ audio
    • 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 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/01—Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
    • 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)
  • Physics & Mathematics (AREA)
  • Signal Processing (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)
  • Mathematical Physics (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Error Detection And Correction (AREA)
KR1020217015014A 2013-05-24 2014-05-23 오디오 인코더 및 디코더 Active KR102384348B1 (ko)

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US201361827264P 2013-05-24 2013-05-24
US61/827,264 2013-05-24
KR1020207035676A KR102280461B1 (ko) 2013-05-24 2014-05-23 오디오 인코더 및 디코더
PCT/EP2014/060731 WO2014187988A2 (en) 2013-05-24 2014-05-23 Audio encoder and decoder

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KR1020177020394A Active KR101895198B1 (ko) 2013-05-24 2014-05-23 오디오 인코더 및 디코더
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KR1020237028826A Active KR102715092B1 (ko) 2013-05-24 2014-05-23 오디오 인코더 및 디코더
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KR1020227011202A Active KR102459010B1 (ko) 2013-05-24 2014-05-23 오디오 인코더 및 디코더
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US (8) US9704493B2 (https=)
EP (6) EP3605532B1 (https=)
JP (7) JP6105159B2 (https=)
KR (10) KR102384348B1 (https=)
CN (2) CN110085238B (https=)
AU (1) AU2014270301B2 (https=)
BR (1) BR112015029031B1 (https=)
CA (5) CA2990261C (https=)
DK (1) DK3005350T3 (https=)
ES (4) ES2629025T3 (https=)
IL (1) IL242410B (https=)
MX (3) MX375380B (https=)
MY (2) MY199032A (https=)
PL (1) PL3005350T3 (https=)
RU (3) RU2676041C1 (https=)
SG (2) SG10201710019SA (https=)
UA (1) UA112833C2 (https=)
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US20180240465A1 (en) 2018-08-23
KR102072777B1 (ko) 2020-02-03
KR20180099942A (ko) 2018-09-05
KR102572382B1 (ko) 2023-09-01
KR20230129576A (ko) 2023-09-08
SG11201509001YA (en) 2015-12-30
DK3005350T3 (en) 2017-07-17
CA2911746A1 (en) 2014-11-27
KR20220148314A (ko) 2022-11-04
EP4700767A3 (en) 2026-03-11
ES3057878T3 (en) 2026-03-05
EP3961622A1 (en) 2022-03-02
KR102715092B1 (ko) 2024-10-11
KR20200013091A (ko) 2020-02-05
KR101895198B1 (ko) 2018-09-07
US20230282219A1 (en) 2023-09-07
JP2021179627A (ja) 2021-11-18
HK1217246A1 (en) 2016-12-30
SG10201710019SA (en) 2018-01-30
RU2710909C1 (ru) 2020-01-14
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BR112015029031B1 (pt) 2021-02-23
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PL3005350T3 (pl) 2017-09-29
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JP2017102484A (ja) 2017-06-08
EP4290510A2 (en) 2023-12-13
KR101763131B1 (ko) 2017-07-31
JP6573640B2 (ja) 2019-09-11
WO2014187988A3 (en) 2015-02-05
MY173644A (en) 2020-02-13
KR20170087971A (ko) 2017-07-31
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US10714104B2 (en) 2020-07-14

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