AU2003207498A1 - A transcoding scheme between celp-based speech codes - Google Patents

A transcoding scheme between celp-based speech codes

Info

Publication number
AU2003207498A1
AU2003207498A1 AU2003207498A AU2003207498A AU2003207498A1 AU 2003207498 A1 AU2003207498 A1 AU 2003207498A1 AU 2003207498 A AU2003207498 A AU 2003207498A AU 2003207498 A AU2003207498 A AU 2003207498A AU 2003207498 A1 AU2003207498 A1 AU 2003207498A1
Authority
AU
Australia
Prior art keywords
celp
based speech
transcoding scheme
speech codes
codes
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.)
Abandoned
Application number
AU2003207498A
Other versions
AU2003207498A8 (en
Inventor
Stephen Gould
Marwan A. Jabri
Jianwei Wang
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.)
Dilithium Networks Pty Ltd
Original Assignee
Dilithium Networks Inc
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 Dilithium Networks Inc filed Critical Dilithium Networks Inc
Publication of AU2003207498A1 publication Critical patent/AU2003207498A1/en
Publication of AU2003207498A8 publication Critical patent/AU2003207498A8/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/16—Vocoder architecture
    • G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
AU2003207498A 2002-01-08 2003-01-08 A transcoding scheme between celp-based speech codes Abandoned AU2003207498A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US34727002P 2002-01-08 2002-01-08
US60/347,270 2002-01-08
PCT/US2003/000649 WO2003058407A2 (en) 2002-01-08 2003-01-08 A transcoding scheme between celp-based speech codes

Publications (2)

Publication Number Publication Date
AU2003207498A1 true AU2003207498A1 (en) 2003-07-24
AU2003207498A8 AU2003207498A8 (en) 2003-07-24

Family

ID=23363030

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003207498A Abandoned AU2003207498A1 (en) 2002-01-08 2003-01-08 A transcoding scheme between celp-based speech codes

Country Status (6)

Country Link
EP (1) EP1464047A4 (en)
JP (1) JP2005515486A (en)
KR (1) KR20040095205A (en)
CN (1) CN100527225C (en)
AU (1) AU2003207498A1 (en)
WO (1) WO2003058407A2 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004064041A1 (en) 2003-01-09 2004-07-29 Dilithium Networks Pty Limited Method and apparatus for improved quality voice transcoding
DE602004007786T2 (en) 2003-05-01 2008-04-30 Nokia Corp. METHOD AND DEVICE FOR QUANTIZING THE GAIN FACTOR IN A VARIABLE BITRATE BROADBAND LANGUAGE CODIER
FR2867648A1 (en) 2003-12-10 2005-09-16 France Telecom TRANSCODING BETWEEN INDICES OF MULTI-IMPULSE DICTIONARIES USED IN COMPRESSION CODING OF DIGITAL SIGNALS
US20050258983A1 (en) * 2004-05-11 2005-11-24 Dilithium Holdings Pty Ltd. (An Australian Corporation) Method and apparatus for voice trans-rating in multi-rate voice coders for telecommunications
FR2871247B1 (en) 2004-06-04 2006-09-15 Essilor Int OPHTHALMIC LENS
CN101010729A (en) * 2004-08-31 2007-08-01 皇家飞利浦电子股份有限公司 Method and device for transcoding
FR2880724A1 (en) 2005-01-11 2006-07-14 France Telecom OPTIMIZED CODING METHOD AND DEVICE BETWEEN TWO LONG-TERM PREDICTION MODELS
EP2276023A3 (en) * 2005-11-30 2011-10-05 Telefonaktiebolaget LM Ericsson (publ) Efficient speech stream conversion
EP1970899A4 (en) * 2005-12-21 2009-05-06 Nec Corp Code conversion device, code conversion method used for the same, and program thereof
US7826536B2 (en) * 2005-12-29 2010-11-02 Nokia Corporation Tune in time reduction
EP1903559A1 (en) * 2006-09-20 2008-03-26 Deutsche Thomson-Brandt Gmbh Method and device for transcoding audio signals
EP1933306A1 (en) * 2006-12-14 2008-06-18 Nokia Siemens Networks Gmbh & Co. Kg Method and apparatus for transcoding a speech signal from a first code excited linear prediction (CELP) format to a second code excited linear prediction (CELP) format
WO2009033288A1 (en) 2007-09-11 2009-03-19 Voiceage Corporation Method and device for fast algebraic codebook search in speech and audio coding
CN101459833B (en) * 2007-12-13 2011-05-11 安凯(广州)微电子技术有限公司 Transcoding method used for similar video code stream and transcoding device thereof
CN101572093B (en) * 2008-04-30 2012-04-25 北京工业大学 Method and device for transcoding
US8521520B2 (en) * 2010-02-03 2013-08-27 General Electric Company Handoffs between different voice encoder systems
TWI564884B (en) 2013-06-21 2017-01-01 弗勞恩霍夫爾協會 Apparatus and method for improved signal fade out in different domains during error concealment, and related computer program
EP3511935B1 (en) 2014-04-17 2020-10-07 VoiceAge EVS LLC Method, device and computer-readable non-transitory memory for linear predictive encoding and decoding of sound signals upon transition between frames having different sampling rates
CN104167210A (en) * 2014-08-21 2014-11-26 华侨大学 Lightweight class multi-side conference sound mixing method and device
CN117476022A (en) * 2022-07-29 2024-01-30 荣耀终端有限公司 Voice coding and decoding method, and related device and system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5457685A (en) * 1993-11-05 1995-10-10 The United States Of America As Represented By The Secretary Of The Air Force Multi-speaker conferencing over narrowband channels
JPH08146997A (en) * 1994-11-21 1996-06-07 Hitachi Ltd Device and system for code conversion
US5758256A (en) * 1995-06-07 1998-05-26 Hughes Electronics Corporation Method of transporting speech information in a wireless cellular system
US5995923A (en) 1997-06-26 1999-11-30 Nortel Networks Corporation Method and apparatus for improving the voice quality of tandemed vocoders
JP3235654B2 (en) * 1997-11-18 2001-12-04 日本電気株式会社 Wireless telephone equipment
US6260009B1 (en) * 1999-02-12 2001-07-10 Qualcomm Incorporated CELP-based to CELP-based vocoder packet translation
JP2002202799A (en) * 2000-10-30 2002-07-19 Fujitsu Ltd Voice code conversion apparatus
JP2002229599A (en) * 2001-02-02 2002-08-16 Nec Corp Device and method for converting voice code string
US20030028386A1 (en) * 2001-04-02 2003-02-06 Zinser Richard L. Compressed domain universal transcoder
KR100434275B1 (en) * 2001-07-23 2004-06-05 엘지전자 주식회사 Apparatus for converting packet and method for converting packet using the same

Also Published As

Publication number Publication date
JP2005515486A (en) 2005-05-26
WO2003058407A2 (en) 2003-07-17
AU2003207498A8 (en) 2003-07-24
WO2003058407A3 (en) 2003-12-24
EP1464047A4 (en) 2005-12-07
CN100527225C (en) 2009-08-12
EP1464047A2 (en) 2004-10-06
KR20040095205A (en) 2004-11-12
CN1701353A (en) 2005-11-23

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase