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WO2009072571A1 - Coding method, device using the method, program, and recording medium - Google Patents

Coding method, device using the method, program, and recording medium Download PDF

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Publication number
WO2009072571A1
WO2009072571A1 PCT/JP2008/072073 JP2008072073W WO2009072571A1 WO 2009072571 A1 WO2009072571 A1 WO 2009072571A1 JP 2008072073 W JP2008072073 W JP 2008072073W WO 2009072571 A1 WO2009072571 A1 WO 2009072571A1
Authority
WO
WIPO (PCT)
Prior art keywords
analysis
signal sequence
prediction
coding
coefficient
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/JP2008/072073
Other languages
French (fr)
Japanese (ja)
Inventor
Takehiro Moriya
Noboru Harada
Yutaka Kamamoto
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.)
NTT Inc
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP2009544715A priority Critical patent/JP4598877B2/en
Publication of WO2009072571A1 publication Critical patent/WO2009072571A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

This object is aimed to increase coding efficiency of a compressed/expanded signal sequence and reduce a code amount. A coding method includes a prediction quantization step, a prediction value calculation step, a subtraction step, a coefficient coding step, and a residual coding step. The prediction quantization step includes a linear response sub-step for analysis and an analysis coefficient sub-step. In the linear response sub-step for analysis, a second signal sequence is converted into a signal sequence for analysis by a process in which the second signal sequence is made to be approached to a signal sequence that has a linear relation with an original signal sequence. In the analysis coefficient sub-step, a prediction coefficient is obtained by performing a prediction analysis of the signal sequence for analysis.
PCT/JP2008/072073 2007-12-04 2008-12-04 Coding method, device using the method, program, and recording medium Ceased WO2009072571A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009544715A JP4598877B2 (en) 2007-12-04 2008-12-04 Encoding method, apparatus using the method, program, and recording medium

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-314035 2007-12-04
JP2007314035 2007-12-04

Publications (1)

Publication Number Publication Date
WO2009072571A1 true WO2009072571A1 (en) 2009-06-11

Family

ID=40717748

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/072073 Ceased WO2009072571A1 (en) 2007-12-04 2008-12-04 Coding method, device using the method, program, and recording medium

Country Status (2)

Country Link
JP (1) JP4598877B2 (en)
WO (1) WO2009072571A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009139504A (en) * 2007-12-04 2009-06-25 Nippon Telegr & Teleph Corp <Ntt> Encoding method, decoding method, apparatus using these methods, program, and recording medium
JP2009139503A (en) * 2007-12-04 2009-06-25 Nippon Telegr & Teleph Corp <Ntt> Encoding method, apparatus using the method, program, and recording medium
JP2009139505A (en) * 2007-12-04 2009-06-25 Nippon Telegr & Teleph Corp <Ntt> Encoding method, decoding method, apparatus using these methods, program, and recording medium
JP2013504911A (en) * 2009-09-14 2013-02-07 トムソン ライセンシング Method for encoding floating-point data, method for decoding floating-point data, and related encoder and decoder

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101919164B (en) 2007-12-11 2013-10-30 日本电信电话株式会社 Coding method, decoding method, device using methods, program, and recording medium

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5327520A (en) * 1992-06-04 1994-07-05 At&T Bell Laboratories Method of use of voice message coder/decoder
JPH0774642A (en) * 1993-09-01 1995-03-17 Sharp Corp Linear predictive coefficient interpolating device
JP2002049398A (en) * 2000-08-02 2002-02-15 Sony Corp Digital signal processing method, learning method, their devices, and program storage medium

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5327520A (en) * 1992-06-04 1994-07-05 At&T Bell Laboratories Method of use of voice message coder/decoder
JPH0774642A (en) * 1993-09-01 1995-03-17 Sharp Corp Linear predictive coefficient interpolating device
JP2002049398A (en) * 2000-08-02 2002-02-15 Sony Corp Digital signal processing method, learning method, their devices, and program storage medium

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009139504A (en) * 2007-12-04 2009-06-25 Nippon Telegr & Teleph Corp <Ntt> Encoding method, decoding method, apparatus using these methods, program, and recording medium
JP2009139503A (en) * 2007-12-04 2009-06-25 Nippon Telegr & Teleph Corp <Ntt> Encoding method, apparatus using the method, program, and recording medium
JP2009139505A (en) * 2007-12-04 2009-06-25 Nippon Telegr & Teleph Corp <Ntt> Encoding method, decoding method, apparatus using these methods, program, and recording medium
JP2013504911A (en) * 2009-09-14 2013-02-07 トムソン ライセンシング Method for encoding floating-point data, method for decoding floating-point data, and related encoder and decoder
US8990275B2 (en) 2009-09-14 2015-03-24 Thomson Licensing Method for encoding floating-point data, method for decoding floating-point data, and corresponding encoder and decoder

Also Published As

Publication number Publication date
JP4598877B2 (en) 2010-12-15
JPWO2009072571A1 (en) 2011-04-28

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