DE69834993D1 - Sprachübertragungssystem - Google Patents

Sprachübertragungssystem

Info

Publication number
DE69834993D1
DE69834993D1 DE69834993T DE69834993T DE69834993D1 DE 69834993 D1 DE69834993 D1 DE 69834993D1 DE 69834993 T DE69834993 T DE 69834993T DE 69834993 T DE69834993 T DE 69834993T DE 69834993 D1 DE69834993 D1 DE 69834993D1
Authority
DE
Germany
Prior art keywords
transmission system
voice transmission
voice
transmission
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
DE69834993T
Other languages
English (en)
Other versions
DE69834993T2 (de
Inventor
Rakesh Taori
Johannes Gerrits
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of DE69834993D1 publication Critical patent/DE69834993D1/de
Application granted granted Critical
Publication of DE69834993T2 publication Critical patent/DE69834993T2/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
    • 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
    • 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
    • G10L19/002—Dynamic bit allocation
    • 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)
  • Physics & Mathematics (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)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
DE69834993T 1997-04-07 1998-03-05 Sprachübertragungssystem Expired - Lifetime DE69834993T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP97200999 1997-04-07
EP97200999 1997-04-07
PCT/IB1998/000277 WO1998045951A1 (en) 1997-04-07 1998-03-05 Speech transmission system

Publications (2)

Publication Number Publication Date
DE69834993D1 true DE69834993D1 (de) 2006-08-03
DE69834993T2 DE69834993T2 (de) 2007-02-15

Family

ID=8228172

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69834993T Expired - Lifetime DE69834993T2 (de) 1997-04-07 1998-03-05 Sprachübertragungssystem

Country Status (10)

Country Link
US (1) US6292774B1 (de)
EP (1) EP0906664B1 (de)
JP (1) JP4346689B2 (de)
KR (1) KR100668247B1 (de)
CN (2) CN1104093C (de)
BR (1) BR9804809B1 (de)
DE (1) DE69834993T2 (de)
ES (1) ES2267176T3 (de)
PL (1) PL193723B1 (de)
WO (1) WO1998045951A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7031926B2 (en) * 2000-10-23 2006-04-18 Nokia Corporation Spectral parameter substitution for the frame error concealment in a speech decoder
US7720677B2 (en) * 2005-11-03 2010-05-18 Coding Technologies Ab Time warped modified transform coding of audio signals
WO2008002098A1 (en) * 2006-06-29 2008-01-03 Lg Electronics, Inc. Method and apparatus for an audio signal processing
KR101418248B1 (ko) 2007-04-12 2014-07-24 삼성전자주식회사 정현파 성분의 진폭 코딩 및 디코딩 방법과 그 장치

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4379949A (en) * 1981-08-10 1983-04-12 Motorola, Inc. Method of and means for variable-rate coding of LPC parameters
US5012518A (en) * 1989-07-26 1991-04-30 Itt Corporation Low-bit-rate speech coder using LPC data reduction processing
US5351338A (en) * 1992-07-06 1994-09-27 Telefonaktiebolaget L M Ericsson Time variable spectral analysis based on interpolation for speech coding
US5504834A (en) * 1993-05-28 1996-04-02 Motrola, Inc. Pitch epoch synchronous linear predictive coding vocoder and method
US5479559A (en) * 1993-05-28 1995-12-26 Motorola, Inc. Excitation synchronous time encoding vocoder and method

Also Published As

Publication number Publication date
WO1998045951A1 (en) 1998-10-15
US6292774B1 (en) 2001-09-18
ES2267176T3 (es) 2007-03-01
JP4346689B2 (ja) 2009-10-21
CN1104093C (zh) 2003-03-26
KR20040004372A (ko) 2004-01-13
JP2000511653A (ja) 2000-09-05
EP0906664A1 (de) 1999-04-07
PL193723B1 (pl) 2007-03-30
CN1223034A (zh) 1999-07-14
PL330399A1 (en) 1999-05-10
EP0906664B1 (de) 2006-06-21
KR100668247B1 (ko) 2007-01-16
CN1426049A (zh) 2003-06-25
BR9804809A (pt) 1999-08-17
BR9804809B1 (pt) 2011-05-31
DE69834993T2 (de) 2007-02-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition