DE69411407T2 - Vorrichtung zum Kodieren von Sprachspektrumparametern mit der kleinstmöglichen Bitzahl - Google Patents

Vorrichtung zum Kodieren von Sprachspektrumparametern mit der kleinstmöglichen Bitzahl

Info

Publication number
DE69411407T2
DE69411407T2 DE69411407T DE69411407T DE69411407T2 DE 69411407 T2 DE69411407 T2 DE 69411407T2 DE 69411407 T DE69411407 T DE 69411407T DE 69411407 T DE69411407 T DE 69411407T DE 69411407 T2 DE69411407 T2 DE 69411407T2
Authority
DE
Germany
Prior art keywords
bits
smallest possible
possible number
speech spectrum
spectrum parameters
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
DE69411407T
Other languages
English (en)
Other versions
DE69411407D1 (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
Publication of DE69411407D1 publication Critical patent/DE69411407D1/de
Application granted granted Critical
Publication of DE69411407T2 publication Critical patent/DE69411407T2/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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • G10L19/07—Line spectrum pair [LSP] vocoders
    • 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
    • G10L2019/0004—Design or structure of the codebook
    • G10L2019/0005—Multi-stage vector quantisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE69411407T 1993-02-09 1994-02-09 Vorrichtung zum Kodieren von Sprachspektrumparametern mit der kleinstmöglichen Bitzahl Expired - Lifetime DE69411407T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5021026A JP2800618B2 (ja) 1993-02-09 1993-02-09 音声パラメータ符号化方式

Publications (2)

Publication Number Publication Date
DE69411407D1 DE69411407D1 (de) 1998-08-13
DE69411407T2 true DE69411407T2 (de) 1999-04-15

Family

ID=12043505

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69411407T Expired - Lifetime DE69411407T2 (de) 1993-02-09 1994-02-09 Vorrichtung zum Kodieren von Sprachspektrumparametern mit der kleinstmöglichen Bitzahl

Country Status (5)

Country Link
US (1) US5625744A (de)
EP (1) EP0610906B1 (de)
JP (1) JP2800618B2 (de)
CA (1) CA2115185C (de)
DE (1) DE69411407T2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10004862A1 (de) * 1999-12-24 2001-07-05 Korea Electronics Telecomm Ein schnelles Suchverfahren für LSP-Quantisierung

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2973805B2 (ja) 1993-12-10 1999-11-08 日本電気株式会社 標準パターン作成装置
JPH08292797A (ja) * 1995-04-20 1996-11-05 Nec Corp 音声符号化装置
JP3308764B2 (ja) * 1995-05-31 2002-07-29 日本電気株式会社 音声符号化装置
IT1277194B1 (it) * 1995-06-28 1997-11-05 Alcatel Italia Metodo e relativi apparati di codifica e di decodifica di un segnale vocale campionato
JP3335841B2 (ja) * 1996-05-27 2002-10-21 日本電気株式会社 信号符号化装置
JP3357795B2 (ja) * 1996-08-16 2002-12-16 株式会社東芝 音声符号化方法および装置
US20040083097A1 (en) * 2002-10-29 2004-04-29 Chu Wai Chung Optimized windows and interpolation factors, and methods for optimizing windows, interpolation factors and linear prediction analysis in the ITU-T G.729 speech coding standard
US7733350B2 (en) * 2006-06-30 2010-06-08 Microsoft Corporation Anisometric texture synthesis
GB2466675B (en) 2009-01-06 2013-03-06 Skype Speech coding
GB2466672B (en) 2009-01-06 2013-03-13 Skype Speech coding
GB2466671B (en) 2009-01-06 2013-03-27 Skype Speech encoding
GB2466673B (en) 2009-01-06 2012-11-07 Skype Quantization
GB2466669B (en) 2009-01-06 2013-03-06 Skype Speech coding
GB2466670B (en) 2009-01-06 2012-11-14 Skype Speech encoding
GB2466674B (en) 2009-01-06 2013-11-13 Skype Speech coding
US8452606B2 (en) 2009-09-29 2013-05-28 Skype Speech encoding using multiple bit rates

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3254687B2 (ja) * 1991-02-26 2002-02-12 日本電気株式会社 音声符号化方式
JP3296363B2 (ja) * 1991-04-30 2002-06-24 日本電信電話株式会社 音声の線形予測パラメータ符号化方法
US5396576A (en) * 1991-05-22 1995-03-07 Nippon Telegraph And Telephone Corporation Speech coding and decoding methods using adaptive and random code books
JP3089769B2 (ja) * 1991-12-03 2000-09-18 日本電気株式会社 音声符号化装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10004862A1 (de) * 1999-12-24 2001-07-05 Korea Electronics Telecomm Ein schnelles Suchverfahren für LSP-Quantisierung
DE10004862B4 (de) * 1999-12-24 2005-03-03 Electronics And Telecommunications Research Institute Ein schnelles Suchverfahren für LSP-Quantisierung

Also Published As

Publication number Publication date
DE69411407D1 (de) 1998-08-13
JPH06236199A (ja) 1994-08-23
CA2115185C (en) 1998-04-28
US5625744A (en) 1997-04-29
EP0610906A1 (de) 1994-08-17
EP0610906B1 (de) 1998-07-08
CA2115185A1 (en) 1994-08-10
JP2800618B2 (ja) 1998-09-21

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