DE60125491D1 - Tiefpaßfilterung des Anregungssignals für die Sprachkodierung - Google Patents

Tiefpaßfilterung des Anregungssignals für die Sprachkodierung

Info

Publication number
DE60125491D1
DE60125491D1 DE60125491T DE60125491T DE60125491D1 DE 60125491 D1 DE60125491 D1 DE 60125491D1 DE 60125491 T DE60125491 T DE 60125491T DE 60125491 T DE60125491 T DE 60125491T DE 60125491 D1 DE60125491 D1 DE 60125491D1
Authority
DE
Germany
Prior art keywords
low
excitation signal
pass filtering
speech coding
speech
Prior art date
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.)
Expired - Lifetime
Application number
DE60125491T
Other languages
English (en)
Other versions
DE60125491T2 (de
Inventor
Kimio Miseki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 by Toshiba Corp filed Critical Toshiba Corp
Publication of DE60125491D1 publication Critical patent/DE60125491D1/de
Application granted granted Critical
Publication of DE60125491T2 publication Critical patent/DE60125491T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0011—Long term prediction filters, i.e. pitch estimation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE60125491T 2000-10-20 2001-03-16 Tiefpaßfilterung des Anregungssignals für die Sprachkodierung Expired - Lifetime DE60125491T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000320679A JP3462464B2 (ja) 2000-10-20 2000-10-20 音声符号化方法、音声復号化方法及び電子装置
JP2000320679 2000-10-20

Publications (2)

Publication Number Publication Date
DE60125491D1 true DE60125491D1 (de) 2007-02-08
DE60125491T2 DE60125491T2 (de) 2007-10-04

Family

ID=18798927

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60125491T Expired - Lifetime DE60125491T2 (de) 2000-10-20 2001-03-16 Tiefpaßfilterung des Anregungssignals für die Sprachkodierung

Country Status (4)

Country Link
US (1) US6842732B2 (de)
EP (1) EP1204094B1 (de)
JP (1) JP3462464B2 (de)
DE (1) DE60125491T2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1242379C (zh) * 1999-08-23 2006-02-15 松下电器产业株式会社 音频编码装置
JP2004061646A (ja) * 2002-07-25 2004-02-26 Fujitsu Ltd Ｔｆｏ機能を有する音声符号化器および方法
JP4433668B2 (ja) * 2002-10-31 2010-03-17 日本電気株式会社 帯域拡張装置及び方法
JP5127170B2 (ja) * 2006-07-07 2013-01-23 株式会社東芝 復号装置およびスペクトル整形方法
JP6239521B2 (ja) * 2011-11-03 2017-11-29 ヴォイスエイジ・コーポレーション 低レートｃｅｌｐデコーダに関する非音声コンテンツの向上
US20210366461A1 (en) * 2020-05-20 2021-11-25 Resemble.ai Generating speech signals using both neural network-based vocoding and generative adversarial training

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04352199A (ja) 1991-05-30 1992-12-07 Fujitsu Ltd 音声符号化及び復号化方式
US5621852A (en) * 1993-12-14 1997-04-15 Interdigital Technology Corporation Efficient codebook structure for code excited linear prediction coding
JPH08179796A (ja) * 1994-12-21 1996-07-12 Sony Corp 音声符号化方法
JPH10149200A (ja) 1996-11-20 1998-06-02 Olympus Optical Co Ltd 線形予測符号化装置
US6202046B1 (en) * 1997-01-23 2001-03-13 Kabushiki Kaisha Toshiba Background noise/speech classification method
US6041297A (en) * 1997-03-10 2000-03-21 At&T Corp Vocoder for coding speech by using a correlation between spectral magnitudes and candidate excitations
WO1999010719A1 (en) * 1997-08-29 1999-03-04 The Regents Of The University Of California Method and apparatus for hybrid coding of speech at 4kbps
JP2000122698A (ja) 1998-10-19 2000-04-28 Mitsubishi Electric Corp 音声符号化装置
US6311154B1 (en) * 1998-12-30 2001-10-30 Nokia Mobile Phones Limited Adaptive windows for analysis-by-synthesis CELP-type speech coding

Also Published As

Publication number Publication date
US6842732B2 (en) 2005-01-11
DE60125491T2 (de) 2007-10-04
JP2002132300A (ja) 2002-05-09
EP1204094A3 (de) 2004-01-14
EP1204094A2 (de) 2002-05-08
JP3462464B2 (ja) 2003-11-05
US20020052745A1 (en) 2002-05-02
EP1204094B1 (de) 2006-12-27

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Legal Events

Date Code Title Description
8381 Inventor (new situation)

Inventor name: MISEKI, KIMIO, MINATO-KU, TOKYO 105-8001, JP

8364 No opposition during term of opposition