WO2002063610A1 - Voice code sequence converting device and method - Google Patents

Voice code sequence converting device and method Download PDF

Info

Publication number
WO2002063610A1
WO2002063610A1 PCT/JP2002/000843 JP0200843W WO02063610A1 WO 2002063610 A1 WO2002063610 A1 WO 2002063610A1 JP 0200843 W JP0200843 W JP 0200843W WO 02063610 A1 WO02063610 A1 WO 02063610A1
Authority
WO
WIPO (PCT)
Prior art keywords
code sequence
circuit
pitch
coefficient
output side
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.)
Ceased
Application number
PCT/JP2002/000843
Other languages
English (en)
French (fr)
Inventor
Masahiro Serizawa
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
Priority to EP02710469A priority Critical patent/EP1363274B1/en
Priority to US10/467,012 priority patent/US7505899B2/en
Priority to DE60222996T priority patent/DE60222996T2/de
Priority to CA2437314A priority patent/CA2437314C/en
Publication of WO2002063610A1 publication Critical patent/WO2002063610A1/ja
Anticipated expiration legal-status Critical
Ceased 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
    • G10L19/16—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
    • G10L19/06—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

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)
PCT/JP2002/000843 2001-02-02 2002-02-01 Voice code sequence converting device and method Ceased WO2002063610A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP02710469A EP1363274B1 (en) 2001-02-02 2002-02-01 Voice code sequence converting device
US10/467,012 US7505899B2 (en) 2001-02-02 2002-02-01 Speech code sequence converting device and method in which coding is performed by two types of speech coding systems
DE60222996T DE60222996T2 (de) 2001-02-02 2002-02-01 Einrichtung zum konvertieren von sprachcodesequenzen
CA2437314A CA2437314C (en) 2001-02-02 2002-02-01 Conversion apparatus and conversion method of speech code sequence

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001-26906 2001-02-02
JP2001026906A JP2002229599A (ja) 2001-02-02 2001-02-02 音声符号列の変換装置および変換方法

Publications (1)

Publication Number Publication Date
WO2002063610A1 true WO2002063610A1 (en) 2002-08-15

Family

ID=18891647

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/000843 Ceased WO2002063610A1 (en) 2001-02-02 2002-02-01 Voice code sequence converting device and method

Country Status (6)

Country Link
US (1) US7505899B2 (ja)
EP (1) EP1363274B1 (ja)
JP (1) JP2002229599A (ja)
CA (1) CA2437314C (ja)
DE (1) DE60222996T2 (ja)
WO (1) WO2002063610A1 (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1279167B1 (en) * 2000-04-24 2007-05-30 QUALCOMM Incorporated Method and apparatus for predictively quantizing voiced speech
US6829579B2 (en) 2002-01-08 2004-12-07 Dilithium Networks, Inc. Transcoding method and system between CELP-based speech codes
CN100527225C (zh) * 2002-01-08 2009-08-12 迪里辛姆网络控股有限公司 基于celp的语音代码之间的代码转换方案
EP1483758A4 (en) * 2002-03-12 2007-04-11 Dilithium Networks Pty Ltd METHOD FOR THE ADAPTIVE CODE BOOK PITCH LADDER CALCULATION IN AUDIOTRANSCODERS
US7486719B2 (en) 2002-10-31 2009-02-03 Nec Corporation Transcoder and code conversion method
JP5036317B2 (ja) * 2004-10-28 2012-09-26 パナソニック株式会社 スケーラブル符号化装置、スケーラブル復号化装置、およびこれらの方法
FR2880724A1 (fr) * 2005-01-11 2006-07-14 France Telecom Procede et dispositif de codage optimise entre deux modeles de prediction a long terme
WO2006134992A1 (ja) * 2005-06-17 2006-12-21 Matsushita Electric Industrial Co., Ltd. ポストフィルタ、復号化装置及びポストフィルタ処理方法
US8279889B2 (en) * 2007-01-04 2012-10-02 Qualcomm Incorporated Systems and methods for dimming a first packet associated with a first bit rate to a second packet associated with a second bit rate
JP2008226300A (ja) * 2007-03-09 2008-09-25 Nec Electronics Corp 復号方法及び復号回路

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0197997A (ja) * 1987-10-09 1989-04-17 A T R Jido Honyaku Denwa Kenkyusho:Kk 声質変換方法
JPH01211798A (ja) * 1988-02-19 1989-08-24 A T R Jido Honyaku Denwa Kenkyusho:Kk 音声の規則合成装置
JPH04147300A (ja) * 1990-10-11 1992-05-20 Fujitsu Ltd 話者の声質変換処理方式
JPH05289700A (ja) * 1992-04-09 1993-11-05 Olympus Optical Co Ltd 音声符号化装置
JPH06266399A (ja) * 1993-03-10 1994-09-22 Mitsubishi Electric Corp 符号化装置及び音声符号化復号化装置
JPH1091193A (ja) * 1996-09-18 1998-04-10 Toshiba Corp 音声符号化方法および音声復号方法
JPH10143196A (ja) * 1996-09-11 1998-05-29 Nippon Telegr & Teleph Corp <Ntt> 音声合成方法、その装置及びプログラム記録媒体
JPH10161699A (ja) * 1996-11-27 1998-06-19 Nec Corp 音声格納再生装置および方法
JPH1195796A (ja) * 1997-09-16 1999-04-09 Toshiba Corp 音声合成方法
JP2000163097A (ja) * 1998-11-27 2000-06-16 Ricoh Co Ltd 音声変換装置、音声変換方法および音声変換プログラムを記録したコンピュータ読み取り可能な記録媒体

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3483958B2 (ja) 1994-10-28 2004-01-06 三菱電機株式会社 広帯域音声復元装置及び広帯域音声復元方法及び音声伝送システム及び音声伝送方法
JPH08146997A (ja) * 1994-11-21 1996-06-07 Hitachi Ltd 符号変換装置および符号変換システム
JP3071388B2 (ja) 1995-12-19 2000-07-31 国際電気株式会社 可変レート音声符号化方式
JPH1031499A (ja) 1996-07-16 1998-02-03 Nippon Telegr & Teleph Corp <Ntt> 音声情報符号化・復号化装置および通信装置
JP3754819B2 (ja) 1998-03-24 2006-03-15 株式会社日立国際電気 音声通信方法及び音声通信装置
WO1999053677A2 (en) * 1998-04-09 1999-10-21 Koninklijke Philips Electronics N.V. Lossless encoding/decoding in a transmission system
US6260009B1 (en) * 1999-02-12 2001-07-10 Qualcomm Incorporated CELP-based to CELP-based vocoder packet translation
JP3478209B2 (ja) * 1999-11-01 2003-12-15 日本電気株式会社 音声信号復号方法及び装置と音声信号符号化復号方法及び装置と記録媒体
JP2002202799A (ja) * 2000-10-30 2002-07-19 Fujitsu Ltd 音声符号変換装置
US6934756B2 (en) * 2000-11-01 2005-08-23 International Business Machines Corporation Conversational networking via transport, coding and control conversational protocols
US6917916B2 (en) * 2001-12-13 2005-07-12 Motorola, Inc. Method and apparatus for testing digital channels in a wireless communication system

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0197997A (ja) * 1987-10-09 1989-04-17 A T R Jido Honyaku Denwa Kenkyusho:Kk 声質変換方法
JPH01211798A (ja) * 1988-02-19 1989-08-24 A T R Jido Honyaku Denwa Kenkyusho:Kk 音声の規則合成装置
JPH04147300A (ja) * 1990-10-11 1992-05-20 Fujitsu Ltd 話者の声質変換処理方式
JPH05289700A (ja) * 1992-04-09 1993-11-05 Olympus Optical Co Ltd 音声符号化装置
JPH06266399A (ja) * 1993-03-10 1994-09-22 Mitsubishi Electric Corp 符号化装置及び音声符号化復号化装置
JPH10143196A (ja) * 1996-09-11 1998-05-29 Nippon Telegr & Teleph Corp <Ntt> 音声合成方法、その装置及びプログラム記録媒体
JPH1091193A (ja) * 1996-09-18 1998-04-10 Toshiba Corp 音声符号化方法および音声復号方法
JPH10161699A (ja) * 1996-11-27 1998-06-19 Nec Corp 音声格納再生装置および方法
JPH1195796A (ja) * 1997-09-16 1999-04-09 Toshiba Corp 音声合成方法
JP2000163097A (ja) * 1998-11-27 2000-06-16 Ricoh Co Ltd 音声変換装置、音声変換方法および音声変換プログラムを記録したコンピュータ読み取り可能な記録媒体

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1363274A4 *

Also Published As

Publication number Publication date
JP2002229599A (ja) 2002-08-16
EP1363274B1 (en) 2007-10-17
DE60222996D1 (de) 2007-11-29
EP1363274A4 (en) 2006-09-20
EP1363274A1 (en) 2003-11-19
CA2437314C (en) 2010-07-06
US20040068407A1 (en) 2004-04-08
US7505899B2 (en) 2009-03-17
CA2437314A1 (en) 2002-08-15
DE60222996T2 (de) 2008-02-07

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