CA2911746C - Audio encoder and decoder - Google Patents

Audio encoder and decoder Download PDF

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Publication number
CA2911746C
CA2911746C CA2911746A CA2911746A CA2911746C CA 2911746 C CA2911746 C CA 2911746C CA 2911746 A CA2911746 A CA 2911746A CA 2911746 A CA2911746 A CA 2911746A CA 2911746 C CA2911746 C CA 2911746C
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Prior art keywords
symbol
vector
entropy coded
index value
encoding
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Active
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CA2911746A
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English (en)
French (fr)
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CA2911746A1 (en
Inventor
Leif Jonas SAMUELSSON
Heiko Purnhagen
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Dolby International AB
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Dolby International AB
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Priority to CA2990261A priority Critical patent/CA2990261C/en
Publication of CA2911746A1 publication Critical patent/CA2911746A1/en
Application granted granted Critical
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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
    • G10L19/008—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
    • G10L19/0017—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
    • G10L19/02—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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Mathematical Analysis (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Algebra (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Error Detection And Correction (AREA)
CA2911746A 2013-05-24 2014-05-23 Audio encoder and decoder Active CA2911746C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2990261A CA2990261C (en) 2013-05-24 2014-05-23 Audio encoder and decoder

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201361827264P 2013-05-24 2013-05-24
US61/827,264 2013-05-24
PCT/EP2014/060731 WO2014187988A2 (en) 2013-05-24 2014-05-23 Audio encoder and decoder

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA2990261A Division CA2990261C (en) 2013-05-24 2014-05-23 Audio encoder and decoder

Publications (2)

Publication Number Publication Date
CA2911746A1 CA2911746A1 (en) 2014-11-27
CA2911746C true CA2911746C (en) 2018-02-13

Family

ID=50771514

Family Applications (5)

Application Number Title Priority Date Filing Date
CA2911746A Active CA2911746C (en) 2013-05-24 2014-05-23 Audio encoder and decoder
CA3077876A Active CA3077876C (en) 2013-05-24 2014-05-23 Audio encoder and decoder
CA3251568A Pending CA3251568A1 (en) 2013-05-24 2014-05-23 Audio encoder and decoder
CA2990261A Active CA2990261C (en) 2013-05-24 2014-05-23 Audio encoder and decoder
CA3163664A Active CA3163664C (en) 2013-05-24 2014-05-23 AUDIO ENCODER AND DECODER

Family Applications After (4)

Application Number Title Priority Date Filing Date
CA3077876A Active CA3077876C (en) 2013-05-24 2014-05-23 Audio encoder and decoder
CA3251568A Pending CA3251568A1 (en) 2013-05-24 2014-05-23 Audio encoder and decoder
CA2990261A Active CA2990261C (en) 2013-05-24 2014-05-23 Audio encoder and decoder
CA3163664A Active CA3163664C (en) 2013-05-24 2014-05-23 AUDIO ENCODER AND DECODER

Country Status (18)

Country Link
US (8) US9704493B2 (ref)
EP (6) EP3605532B1 (ref)
JP (7) JP6105159B2 (ref)
KR (10) KR102459010B1 (ref)
CN (2) CN110085238B (ref)
AU (1) AU2014270301B2 (ref)
BR (1) BR112015029031B1 (ref)
CA (5) CA2911746C (ref)
DK (1) DK3005350T3 (ref)
ES (4) ES2629025T3 (ref)
IL (1) IL242410B (ref)
MX (3) MX350117B (ref)
MY (2) MY173644A (ref)
PL (1) PL3005350T3 (ref)
RU (3) RU2643489C2 (ref)
SG (2) SG11201509001YA (ref)
UA (1) UA112833C2 (ref)
WO (1) WO2014187988A2 (ref)

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Also Published As

Publication number Publication date
RU2019141091A (ru) 2021-06-15
CA2990261A1 (en) 2014-11-27
CN105229729B (zh) 2019-03-19
SG10201710019SA (en) 2018-01-30
KR20240151867A (ko) 2024-10-18
US20170309279A1 (en) 2017-10-26
KR102715092B1 (ko) 2024-10-11
CN110085238A (zh) 2019-08-02
CA3251568A1 (en) 2025-02-24
JP6573640B2 (ja) 2019-09-11
KR20200145837A (ko) 2020-12-30
EP3005350A2 (en) 2016-04-13
RU2676041C1 (ru) 2018-12-25
MY173644A (en) 2020-02-13
EP3605532B1 (en) 2021-09-29
DK3005350T3 (en) 2017-07-17
US9940939B2 (en) 2018-04-10
BR112015029031B1 (pt) 2021-02-23
US20210390963A1 (en) 2021-12-16
JP2017102484A (ja) 2017-06-08
WO2014187988A2 (en) 2014-11-27
KR102572382B1 (ko) 2023-09-01
US20200013415A1 (en) 2020-01-09
KR20220045259A (ko) 2022-04-12
US11024320B2 (en) 2021-06-01
EP4290510A2 (en) 2023-12-13
JP6920382B2 (ja) 2021-08-18
KR102459010B1 (ko) 2022-10-27
JP2021179627A (ja) 2021-11-18
RU2710909C1 (ru) 2020-01-14
JP2025028867A (ja) 2025-03-05
EP3605532A1 (en) 2020-02-05
US20180240465A1 (en) 2018-08-23
KR20160013154A (ko) 2016-02-03
KR20180099942A (ko) 2018-09-05
MX2020010038A (es) 2020-10-14
CA3163664C (en) 2025-07-08
KR20230129576A (ko) 2023-09-08
KR20170087971A (ko) 2017-07-31
JP6105159B2 (ja) 2017-03-29
KR20200013091A (ko) 2020-02-05
CN110085238B (zh) 2023-06-02
KR102072777B1 (ko) 2020-02-03
RU2643489C2 (ru) 2018-02-01
US20160111098A1 (en) 2016-04-21
CA3077876A1 (en) 2014-11-27
US20200411017A1 (en) 2020-12-31
US20230282219A1 (en) 2023-09-07
AU2014270301B2 (en) 2017-08-03
MX350117B (es) 2017-08-28
US12236961B2 (en) 2025-02-25
PL3005350T3 (pl) 2017-09-29
CA2990261C (en) 2020-06-16
ES2902518T3 (es) 2022-03-28
KR20210060660A (ko) 2021-05-26
RU2015155311A (ru) 2017-06-30
CN105229729A (zh) 2016-01-06
BR112015029031A2 (pt) 2017-07-25
EP4290510B1 (en) 2025-11-05
JP2023076575A (ja) 2023-06-01
KR101763131B1 (ko) 2017-07-31
US9704493B2 (en) 2017-07-11
JP7258086B2 (ja) 2023-04-14
KR20220148314A (ko) 2022-11-04
ES2629025T3 (es) 2017-08-07
CA3077876C (en) 2022-08-09
ES3057878T3 (en) 2026-03-05
JP2020016884A (ja) 2020-01-30
EP3005350B1 (en) 2017-05-10
US20250356860A1 (en) 2025-11-20
CA3163664A1 (en) 2014-11-27
AU2014270301A1 (en) 2015-11-19
KR102280461B1 (ko) 2021-07-22
EP4700767A2 (en) 2026-02-25
EP4290510A3 (en) 2024-02-14
EP4700767A3 (en) 2026-03-11
KR101895198B1 (ko) 2018-09-07
EP3252757B1 (en) 2019-12-25
MX2015015926A (es) 2016-04-06
HK1217246A1 (en) 2016-12-30
ES2965423T3 (es) 2024-04-15
JP2025100674A (ja) 2025-07-03
US11594233B2 (en) 2023-02-28
US10418038B2 (en) 2019-09-17
EP3961622B1 (en) 2023-11-01
MY199032A (en) 2023-10-10
KR102192245B1 (ko) 2020-12-17
IL242410B (en) 2018-11-29
JP2016526186A (ja) 2016-09-01
EP3252757A1 (en) 2017-12-06
MX375380B (es) 2025-03-06
SG11201509001YA (en) 2015-12-30
UA112833C2 (uk) 2016-10-25
US10714104B2 (en) 2020-07-14
WO2014187988A3 (en) 2015-02-05
CA2911746A1 (en) 2014-11-27
KR102384348B1 (ko) 2022-04-08
JP7585379B2 (ja) 2024-11-18
EP3961622A1 (en) 2022-03-02

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