WO2009072571A1 - Coding method, device using the method, program, and recording medium - Google Patents
Coding method, device using the method, program, and recording medium Download PDFInfo
- 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
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
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- 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
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.
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 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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009139503A (en) * | 2007-12-04 | 2009-06-25 | Nippon Telegr & Teleph Corp <Ntt> | Coding method, device using method, program, and recording medium |
JP2009139504A (en) * | 2007-12-04 | 2009-06-25 | Nippon Telegr & Teleph Corp <Ntt> | Coding method, decoding method, device using these methods, program, and recording medium |
JP2009139505A (en) * | 2007-12-04 | 2009-06-25 | Nippon Telegr & Teleph Corp <Ntt> | Coding method, decoding method, device using method, 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)
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)
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, and their apparatus, and program storage media therefor |
-
2008
- 2008-12-04 WO PCT/JP2008/072073 patent/WO2009072571A1/en active Application Filing
- 2008-12-04 JP JP2009544715A patent/JP4598877B2/en active Active
Patent Citations (3)
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, and their apparatus, and program storage media therefor |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009139503A (en) * | 2007-12-04 | 2009-06-25 | Nippon Telegr & Teleph Corp <Ntt> | Coding method, device using method, program, and recording medium |
JP2009139504A (en) * | 2007-12-04 | 2009-06-25 | Nippon Telegr & Teleph Corp <Ntt> | Coding method, decoding method, device using these methods, program, and recording medium |
JP2009139505A (en) * | 2007-12-04 | 2009-06-25 | Nippon Telegr & Teleph Corp <Ntt> | Coding method, decoding method, device using method, 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 |
---|---|
JPWO2009072571A1 (en) | 2011-04-28 |
JP4598877B2 (en) | 2010-12-15 |
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