DE69614761T2 - Verfahren und Vorrichtung zur Sprachkodierung - Google Patents

Verfahren und Vorrichtung zur Sprachkodierung

Info

Publication number
DE69614761T2
DE69614761T2 DE69614761T DE69614761T DE69614761T2 DE 69614761 T2 DE69614761 T2 DE 69614761T2 DE 69614761 T DE69614761 T DE 69614761T DE 69614761 T DE69614761 T DE 69614761T DE 69614761 T2 DE69614761 T2 DE 69614761T2
Authority
DE
Germany
Prior art keywords
speech coding
speech
coding
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
DE69614761T
Other languages
English (en)
Other versions
DE69614761D1 (de
Inventor
Kazunori Ozawa
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 DE69614761D1 publication Critical patent/DE69614761D1/de
Publication of DE69614761T2 publication Critical patent/DE69614761T2/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
    • G10L19/12—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
    • G10L19/125—Pitch excitation, e.g. pitch synchronous innovation CELP [PSI-CELP]

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)
DE69614761T 1995-05-31 1996-05-30 Verfahren und Vorrichtung zur Sprachkodierung Expired - Lifetime DE69614761T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13337295A JP3308764B2 (ja) 1995-05-31 1995-05-31 音声符号化装置

Publications (2)

Publication Number Publication Date
DE69614761D1 DE69614761D1 (de) 2001-10-04
DE69614761T2 true DE69614761T2 (de) 2002-06-20

Family

ID=15103195

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69614761T Expired - Lifetime DE69614761T2 (de) 1995-05-31 1996-05-30 Verfahren und Vorrichtung zur Sprachkodierung

Country Status (5)

Country Link
US (1) US5884252A (de)
EP (1) EP0745972B1 (de)
JP (1) JP3308764B2 (de)
CA (1) CA2177226C (de)
DE (1) DE69614761T2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP3166697B2 (ja) * 1998-01-14 2001-05-14 日本電気株式会社 音声符号化・復号装置及びシステム
US6691084B2 (en) 1998-12-21 2004-02-10 Qualcomm Incorporated Multiple mode variable rate speech coding
JP4108317B2 (ja) 2001-11-13 2008-06-25 日本電気株式会社 符号変換方法及び装置とプログラム並びに記憶媒体
JP4263412B2 (ja) 2002-01-29 2009-05-13 富士通株式会社 音声符号変換方法
JP2006145712A (ja) * 2004-11-18 2006-06-08 Pioneer Electronic Corp オーディオデータ補間装置
KR101757341B1 (ko) 2013-01-29 2017-07-14 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에.베. 저-복잡도 음조-적응 오디오 신호 양자화
EP3091536B1 (de) * 2014-01-15 2019-12-11 Samsung Electronics Co., Ltd. Gewichtungsfunktionsbestimmung zur quantisierung linearer prädiktionscodierungskoeffizienten

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6262399A (ja) * 1985-09-13 1987-03-19 株式会社日立製作所 音声高能率符号化方式
JPH0761044B2 (ja) * 1986-07-28 1995-06-28 日本電信電話株式会社 音声符号化法
US5077798A (en) * 1988-09-28 1991-12-31 Hitachi, Ltd. Method and system for voice coding based on vector quantization
US5091945A (en) * 1989-09-28 1992-02-25 At&T Bell Laboratories Source dependent channel coding with error protection
CA2027705C (en) * 1989-10-17 1994-02-15 Masami Akamine Speech coding system utilizing a recursive computation technique for improvement in processing speed
US5208862A (en) * 1990-02-22 1993-05-04 Nec Corporation Speech coder
JP3114197B2 (ja) * 1990-11-02 2000-12-04 日本電気株式会社 音声パラメータ符号化方法
JP3254687B2 (ja) * 1991-02-26 2002-02-12 日本電気株式会社 音声符号化方式
JP2776050B2 (ja) * 1991-02-26 1998-07-16 日本電気株式会社 音声符号化方式
JP3151874B2 (ja) * 1991-02-26 2001-04-03 日本電気株式会社 音声パラメータ符号化方式および装置
JP3026461B2 (ja) * 1991-04-01 2000-03-27 日本電信電話株式会社 音声のピッチ予測符号化法
US5396576A (en) * 1991-05-22 1995-03-07 Nippon Telegraph And Telephone Corporation Speech coding and decoding methods using adaptive and random code books
JP3143956B2 (ja) * 1991-06-27 2001-03-07 日本電気株式会社 音声パラメータ符号化方式
JPH05265496A (ja) * 1992-03-18 1993-10-15 Hitachi Ltd 複数のコードブックを有する音声符号化方法
JP2746039B2 (ja) * 1993-01-22 1998-04-28 日本電気株式会社 音声符号化方式
JP2800618B2 (ja) * 1993-02-09 1998-09-21 日本電気株式会社 音声パラメータ符号化方式
US5598504A (en) * 1993-03-15 1997-01-28 Nec Corporation Speech coding system to reduce distortion through signal overlap
IT1270439B (it) * 1993-06-10 1997-05-05 Sip Procedimento e dispositivo per la quantizzazione dei parametri spettrali in codificatori numerici della voce
JP2658816B2 (ja) * 1993-08-26 1997-09-30 日本電気株式会社 音声のピッチ符号化装置
CA2137756C (en) * 1993-12-10 2000-02-01 Kazunori Ozawa Voice coder and a method for searching codebooks

Also Published As

Publication number Publication date
CA2177226A1 (en) 1996-12-01
EP0745972A2 (de) 1996-12-04
US5884252A (en) 1999-03-16
JPH08328597A (ja) 1996-12-13
JP3308764B2 (ja) 2002-07-29
CA2177226C (en) 2000-10-03
DE69614761D1 (de) 2001-10-04
EP0745972A3 (de) 1998-09-02
EP0745972B1 (de) 2001-08-29

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