DE60028500D1 - Sprachdekodierung - Google Patents

Sprachdekodierung

Info

Publication number
DE60028500D1
DE60028500D1 DE60028500T DE60028500T DE60028500D1 DE 60028500 D1 DE60028500 D1 DE 60028500D1 DE 60028500 T DE60028500 T DE 60028500T DE 60028500 T DE60028500 T DE 60028500T DE 60028500 D1 DE60028500 D1 DE 60028500D1
Authority
DE
Germany
Prior art keywords
speech decoding
speech
decoding
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
DE60028500T
Other languages
English (en)
Other versions
DE60028500T2 (de
Inventor
Atsushi Murashima
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE60028500D1 publication Critical patent/DE60028500D1/de
Publication of DE60028500T2 publication Critical patent/DE60028500T2/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
    • G10L19/083—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being an excitation gain
    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
    • G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility
    • 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
    • G10L2019/0012—Smoothing of parameters of the decoder interpolation

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)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
DE60028500T 1999-11-01 2000-10-31 Sprachdekodierung Expired - Lifetime DE60028500T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP31162099A JP3478209B2 (ja) 1999-11-01 1999-11-01 音声信号復号方法及び装置と音声信号符号化復号方法及び装置と記録媒体
JP31162099 1999-11-01

Publications (2)

Publication Number Publication Date
DE60028500D1 true DE60028500D1 (de) 2006-07-20
DE60028500T2 DE60028500T2 (de) 2007-01-04

Family

ID=18019455

Family Applications (2)

Application Number Title Priority Date Filing Date
DE60044154T Expired - Lifetime DE60044154D1 (de) 1999-11-01 2000-10-31 Sprachdekodierung
DE60028500T Expired - Lifetime DE60028500T2 (de) 1999-11-01 2000-10-31 Sprachdekodierung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE60044154T Expired - Lifetime DE60044154D1 (de) 1999-11-01 2000-10-31 Sprachdekodierung

Country Status (6)

Country Link
US (1) US6910009B1 (de)
EP (3) EP2187390B1 (de)
JP (1) JP3478209B2 (de)
CA (1) CA2324898C (de)
DE (2) DE60044154D1 (de)
HK (1) HK1093592A1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5621852A (en) * 1993-12-14 1997-04-15 Interdigital Technology Corporation Efficient codebook structure for code excited linear prediction coding
JP3558031B2 (ja) * 2000-11-06 2004-08-25 日本電気株式会社 音声復号化装置
JP2002229599A (ja) * 2001-02-02 2002-08-16 Nec Corp 音声符号列の変換装置および変換方法
JP4304360B2 (ja) 2002-05-22 2009-07-29 日本電気株式会社 音声符号化復号方式間の符号変換方法および装置とその記憶媒体
US7486719B2 (en) * 2002-10-31 2009-02-03 Nec Corporation Transcoder and code conversion method
ES2548010T3 (es) 2007-03-05 2015-10-13 Telefonaktiebolaget Lm Ericsson (Publ) Procedimiento y dispositivo para suavizar ruido de fondo estacionario
PL2118889T3 (pl) 2007-03-05 2013-03-29 Ericsson Telefon Ab L M Sposób i sterownik do wygładzania stacjonarnego szumu tła
TWI463878B (zh) * 2009-02-19 2014-12-01 Sony Corp Image processing apparatus and method
KR101761629B1 (ko) 2009-11-24 2017-07-26 엘지전자 주식회사 오디오 신호 처리 방법 및 장치
CN102822888B (zh) * 2010-03-25 2014-07-02 日本电气株式会社 话音合成器和话音合成方法
JP5323145B2 (ja) * 2011-08-05 2013-10-23 株式会社東芝 復号装置およびスペクトル整形方法
JP5323144B2 (ja) * 2011-08-05 2013-10-23 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
US9082398B2 (en) 2012-02-28 2015-07-14 Huawei Technologies Co., Ltd. System and method for post excitation enhancement for low bit rate speech coding
US9015044B2 (en) * 2012-03-05 2015-04-21 Malaspina Labs (Barbados) Inc. Formant based speech reconstruction from noisy signals
CN104584123B (zh) * 2012-08-29 2018-02-13 日本电信电话株式会社 解码方法、以及解码装置
CN104143337B (zh) 2014-01-08 2015-12-09 腾讯科技（深圳）有限公司 一种提高音频信号音质的方法和装置
EP3859734B1 (de) * 2014-05-01 2022-01-26 Nippon Telegraph And Telephone Corporation Tonsignaldecodierungsvorrichtung, tonsignaldecodierungsverfahren, programm und aufzeichnungsmedium

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5267317A (en) * 1991-10-18 1993-11-30 At&T Bell Laboratories Method and apparatus for smoothing pitch-cycle waveforms
US5991725A (en) * 1995-03-07 1999-11-23 Advanced Micro Devices, Inc. System and method for enhanced speech quality in voice storage and retrieval systems
US5664055A (en) * 1995-06-07 1997-09-02 Lucent Technologies Inc. CS-ACELP speech compression system with adaptive pitch prediction filter gain based on a measure of periodicity
US5960389A (en) * 1996-11-15 1999-09-28 Nokia Mobile Phones Limited Methods for generating comfort noise during discontinuous transmission
US6202046B1 (en) * 1997-01-23 2001-03-13 Kabushiki Kaisha Toshiba Background noise/speech classification method
US6453289B1 (en) * 1998-07-24 2002-09-17 Hughes Electronics Corporation Method of noise reduction for speech codecs
US6507814B1 (en) * 1998-08-24 2003-01-14 Conexant Systems, Inc. Pitch determination using speech classification and prior pitch estimation
JP3417362B2 (ja) 1999-09-10 2003-06-16 日本電気株式会社 音声信号復号方法及び音声信号符号化復号方法

Also Published As

Publication number Publication date
EP1096476B1 (de) 2006-06-07
HK1093592A1 (en) 2007-03-02
DE60028500T2 (de) 2007-01-04
EP2187390A1 (de) 2010-05-19
CA2324898C (en) 2005-09-27
EP1096476A2 (de) 2001-05-02
JP2001134296A (ja) 2001-05-18
EP2187390B1 (de) 2013-10-23
EP1688920A1 (de) 2006-08-09
US6910009B1 (en) 2005-06-21
CA2324898A1 (en) 2001-05-01
EP1096476A3 (de) 2003-12-10
JP3478209B2 (ja) 2003-12-15
DE60044154D1 (de) 2010-05-20
EP1688920B1 (de) 2010-04-07

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Legal Events

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