JPWO2022009505A1 - - Google Patents

Info

Publication number
JPWO2022009505A1
JPWO2022009505A1 JP2022534918A JP2022534918A JPWO2022009505A1 JP WO2022009505 A1 JPWO2022009505 A1 JP WO2022009505A1 JP 2022534918 A JP2022534918 A JP 2022534918A JP 2022534918 A JP2022534918 A JP 2022534918A JP WO2022009505 A1 JPWO2022009505 A1 JP WO2022009505A1
Authority
JP
Japan
Legal status (The legal status 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 status listed.)
Pending
Application number
JP2022534918A
Other languages
Japanese (ja)
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 filed Critical
Publication of JPWO2022009505A1 publication Critical patent/JPWO2022009505A1/ja
Pending legal-status Critical Current

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
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • 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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
JP2022534918A 2020-07-07 2021-04-22 Pending JPWO2022009505A1 (enExample)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2020117124 2020-07-07
JP2020173259 2020-10-14
JP2020181197 2020-10-29
PCT/JP2021/016320 WO2022009505A1 (ja) 2020-07-07 2021-04-22 符号化装置、復号装置、符号化方法、復号方法、及び、ハイブリッド符号化システム

Publications (1)

Publication Number Publication Date
JPWO2022009505A1 true JPWO2022009505A1 (enExample) 2022-01-13

Family

ID=79552900

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022534918A Pending JPWO2022009505A1 (enExample) 2020-07-07 2021-04-22

Country Status (3)

Country Link
US (1) US20230306978A1 (enExample)
JP (1) JPWO2022009505A1 (enExample)
WO (1) WO2022009505A1 (enExample)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09510072A (ja) * 1994-12-24 1997-10-07 フィリップッス エレクトロニクス ネムローゼ フェンノートシャップ 受信機において改良されたデコーダを備えたデジタル伝送系
JP2011503653A (ja) * 2007-11-04 2011-01-27 クゥアルコム・インコーポレイテッド スケーラブルなスピーチおよびオーディオコーデックにおける、量子化ｍｄｃｔスペクトルに対するコードブックインデックスのエンコーディング／デコーディングのための技術
US20110161087A1 (en) * 2009-12-31 2011-06-30 Motorola, Inc. Embedded Speech and Audio Coding Using a Switchable Model Core

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001047283A1 (en) * 1999-12-22 2001-06-28 General Instrument Corporation Video compression for multicast environments using spatial scalability and simulcast coding
CN1748443B (zh) * 2003-03-04 2010-09-22 诺基亚有限公司 多声道音频扩展支持
EP1907812B1 (fr) * 2005-07-22 2010-12-01 France Telecom Procede de commutation de debit en decodage audio scalable en debit et largeur de bande
WO2007105586A1 (ja) * 2006-03-10 2007-09-20 Matsushita Electric Industrial Co., Ltd. 符号化装置および符号化方法
KR101390188B1 (ko) * 2006-06-21 2014-04-30 삼성전자주식회사 적응적 고주파수영역 부호화 및 복호화 방법 및 장치
CN101802907B (zh) * 2007-09-19 2013-11-13 爱立信电话股份有限公司 多信道音频的联合增强
EP2345027B1 (en) * 2008-10-10 2018-04-18 Telefonaktiebolaget LM Ericsson (publ) Energy-conserving multi-channel audio coding and decoding
WO2012002768A2 (ko) * 2010-07-01 2012-01-05 엘지전자 주식회사 오디오 신호 처리 방법 및 장치
EP3063761B1 (en) * 2013-10-31 2017-11-22 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung E.V. Audio bandwidth extension by insertion of temporal pre-shaped noise in frequency domain

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09510072A (ja) * 1994-12-24 1997-10-07 フィリップッス エレクトロニクス ネムローゼ フェンノートシャップ 受信機において改良されたデコーダを備えたデジタル伝送系
JP2011503653A (ja) * 2007-11-04 2011-01-27 クゥアルコム・インコーポレイテッド スケーラブルなスピーチおよびオーディオコーデックにおける、量子化ｍｄｃｔスペクトルに対するコードブックインデックスのエンコーディング／デコーディングのための技術
US20110161087A1 (en) * 2009-12-31 2011-06-30 Motorola, Inc. Embedded Speech and Audio Coding Using a Switchable Model Core

Also Published As

Publication number Publication date
WO2022009505A1 (ja) 2022-01-13
US20230306978A1 (en) 2023-09-28

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