WO2003058407A3 - A transcoding scheme between celp-based speech codes - Google Patents

A transcoding scheme between celp-based speech codes Download PDF

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Publication number
WO2003058407A3
WO2003058407A3 PCT/US2003/000649 US0300649W WO03058407A3 WO 2003058407 A3 WO2003058407 A3 WO 2003058407A3 US 0300649 W US0300649 W US 0300649W WO 03058407 A3 WO03058407 A3 WO 03058407A3
Authority
WO
WIPO (PCT)
Prior art keywords
celp
codec
parameters
destination
source
Prior art date
Application number
PCT/US2003/000649
Other languages
French (fr)
Other versions
WO2003058407A2 (en
Inventor
Marwan A Jabri
Jianwei Wang
Stephen Gould
Original Assignee
Macchina Pty Ltd
Marwan A Jabri
Jianwei Wang
Stephen Gould
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 Macchina Pty Ltd, Marwan A Jabri, Jianwei Wang, Stephen Gould filed Critical Macchina Pty Ltd
Priority to EP03705707A priority Critical patent/EP1464047A4/en
Priority to KR10-2004-7010699A priority patent/KR20040095205A/en
Priority to AU2003207498A priority patent/AU2003207498A1/en
Priority to JP2003558656A priority patent/JP2005515486A/en
Publication of WO2003058407A2 publication Critical patent/WO2003058407A2/en
Publication of WO2003058407A3 publication Critical patent/WO2003058407A3/en

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
    • G10L19/16—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 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • 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

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)

Abstract

Transcoding a CELP based compressed voice bitstream from source codec to destination codec relate to embodiments of a system and method. The method includes processing a source codec input bitstream to unpack (1) CELP parameters from the input CELP bistream and may interpolate (2) the unpacked CELP parameters from is a difference of destination codec parameters and source codec parameters exists. If the method maps (4) CELP from source codec format to a destination codec format, the parameter mapping strategy may be singly preset or selected (3). The method inludes encoding the CELP parameters for the destination codec and processing a destination CELP bitstream by packing (7) the CELP parameters for the destination codec.
PCT/US2003/000649 2002-01-08 2003-01-08 A transcoding scheme between celp-based speech codes WO2003058407A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP03705707A EP1464047A4 (en) 2002-01-08 2003-01-08 A transcoding scheme between celp-based speech codes
KR10-2004-7010699A KR20040095205A (en) 2002-01-08 2003-01-08 A transcoding scheme between celp-based speech codes
AU2003207498A AU2003207498A1 (en) 2002-01-08 2003-01-08 A transcoding scheme between celp-based speech codes
JP2003558656A JP2005515486A (en) 2002-01-08 2003-01-08 Transcoding scheme between speech codes by CELP

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US34727002P 2002-01-08 2002-01-08
US60/347,270 2002-01-08

Publications (2)

Publication Number Publication Date
WO2003058407A2 WO2003058407A2 (en) 2003-07-17
WO2003058407A3 true WO2003058407A3 (en) 2003-12-24

Family

ID=23363030

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/000649 WO2003058407A2 (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)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1579427A4 (en) 2003-01-09 2007-05-16 Dilithium Networks Pty Ltd Method and apparatus for improved quality voice transcoding
KR100732659B1 (en) 2003-05-01 2007-06-27 노키아 코포레이션 Method and device for gain quantization in variable bit rate wideband speech coding
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
US8543388B2 (en) * 2005-11-30 2013-09-24 Telefonaktiebolaget Lm Ericsson (Publ) Efficient speech stream conversion
KR101013642B1 (en) * 2005-12-21 2011-02-10 닛본 덴끼 가부시끼가이샤 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
CN101842833B (en) 2007-09-11 2012-07-18 沃伊斯亚吉公司 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
TWI569262B (en) 2013-06-21 2017-02-01 弗勞恩霍夫爾協會 Apparatus and method for decoding an encoded audio signal to obtain a reconstructed audio signal, and related computer program
EP3132443B1 (en) 2014-04-17 2018-12-26 VoiceAge Corporation Methods, encoder and decoder 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

Citations (7)

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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
US5758256A (en) * 1995-06-07 1998-05-26 Hughes Electronics Corporation Method of transporting speech information in a wireless cellular system
GB2332130A (en) * 1997-11-18 1999-06-09 Nec Corp Mobile telephone with voice data memory
US5995923A (en) * 1997-06-26 1999-11-30 Nortel Networks Corporation Method and apparatus for improving the voice quality of tandemed vocoders
WO2000048170A1 (en) * 1999-02-12 2000-08-17 Qualcomm Incorporated Celp transcoding
US20020196762A1 (en) * 2001-06-23 2002-12-26 Lg Electronics Inc. Packet converting apparatus and method therefor
US20030028386A1 (en) * 2001-04-02 2003-02-06 Zinser Richard L. Compressed domain universal transcoder

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JPH08146997A (en) * 1994-11-21 1996-06-07 Hitachi Ltd Device and system for code conversion
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

Patent Citations (7)

* 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
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
GB2332130A (en) * 1997-11-18 1999-06-09 Nec Corp Mobile telephone with voice data memory
WO2000048170A1 (en) * 1999-02-12 2000-08-17 Qualcomm Incorporated Celp transcoding
US20030028386A1 (en) * 2001-04-02 2003-02-06 Zinser Richard L. Compressed domain universal transcoder
US20020196762A1 (en) * 2001-06-23 2002-12-26 Lg Electronics Inc. Packet converting apparatus and method therefor

Non-Patent Citations (1)

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Title
See also references of EP1464047A4 *

Also Published As

Publication number Publication date
CN100527225C (en) 2009-08-12
KR20040095205A (en) 2004-11-12
WO2003058407A2 (en) 2003-07-17
AU2003207498A1 (en) 2003-07-24
AU2003207498A8 (en) 2003-07-24
CN1701353A (en) 2005-11-23
EP1464047A2 (en) 2004-10-06
JP2005515486A (en) 2005-05-26
EP1464047A4 (en) 2005-12-07

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