CN102280109B - 编码装置、解码装置及它们的方法 - Google Patents
编码装置、解码装置及它们的方法 Download PDFInfo
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- CN102280109B CN102280109B CN201110224924.6A CN201110224924A CN102280109B CN 102280109 B CN102280109 B CN 102280109B CN 201110224924 A CN201110224924 A CN 201110224924A CN 102280109 B CN102280109 B CN 102280109B
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- 238000000034 method Methods 0.000 title claims description 78
- 238000001228 spectrum Methods 0.000 claims abstract description 296
- 230000003595 spectral effect Effects 0.000 claims description 113
- 238000004891 communication Methods 0.000 claims description 15
- 230000011218 segmentation Effects 0.000 claims description 9
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- 238000004364 calculation method Methods 0.000 claims description 8
- 230000008901 benefit Effects 0.000 claims description 5
- 238000003384 imaging method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 description 24
- 238000011002 quantification Methods 0.000 description 22
- 238000013139 quantization Methods 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 10
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Classifications
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- 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
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
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- 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
- G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
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- 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
-
- 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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
- H04B1/667—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands
-
- 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
- G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/032—Quantisation or dequantisation of spectral components
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- Computational Linguistics (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Quality & Reliability (AREA)
- Computer Networks & Wireless Communication (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Error Detection And Correction (AREA)
Abstract
Description
Claims (10)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004148901 | 2004-05-19 | ||
JP148901/04 | 2004-05-19 | ||
CN2005800158368A CN1954363B (zh) | 2004-05-19 | 2005-05-17 | 编码装置和编码方法 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN2005800158368A Division CN1954363B (zh) | 2004-05-19 | 2005-05-17 | 编码装置和编码方法 |
Publications (2)
Publication Number | Publication Date |
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CN102280109A CN102280109A (zh) | 2011-12-14 |
CN102280109B true CN102280109B (zh) | 2016-04-27 |
Family
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Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201110224924.6A Active CN102280109B (zh) | 2004-05-19 | 2005-05-17 | 编码装置、解码装置及它们的方法 |
CN2005800158368A Active CN1954363B (zh) | 2004-05-19 | 2005-05-17 | 编码装置和编码方法 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2005800158368A Active CN1954363B (zh) | 2004-05-19 | 2005-05-17 | 编码装置和编码方法 |
Country Status (9)
Country | Link |
---|---|
US (2) | US8463602B2 (zh) |
EP (3) | EP3118849B1 (zh) |
JP (2) | JP5013863B2 (zh) |
KR (1) | KR20070012832A (zh) |
CN (2) | CN102280109B (zh) |
AT (1) | ATE394774T1 (zh) |
BR (1) | BRPI0510400A (zh) |
DE (1) | DE602005006551D1 (zh) |
WO (1) | WO2005112001A1 (zh) |
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JP2005004119A (ja) * | 2003-06-16 | 2005-01-06 | Victor Co Of Japan Ltd | 音響信号符号化装置及び音響信号復号化装置 |
WO2005111568A1 (ja) * | 2004-05-14 | 2005-11-24 | Matsushita Electric Industrial Co., Ltd. | 符号化装置、復号化装置、およびこれらの方法 |
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KR20070012832A (ko) | 2007-01-29 |
ATE394774T1 (de) | 2008-05-15 |
CN1954363B (zh) | 2011-10-12 |
BRPI0510400A (pt) | 2007-10-23 |
CN1954363A (zh) | 2007-04-25 |
US8463602B2 (en) | 2013-06-11 |
US8688440B2 (en) | 2014-04-01 |
EP1742202B1 (en) | 2008-05-07 |
WO2005112001A1 (ja) | 2005-11-24 |
JP5013863B2 (ja) | 2012-08-29 |
US20080262835A1 (en) | 2008-10-23 |
EP1939862B1 (en) | 2016-10-05 |
US20130246075A1 (en) | 2013-09-19 |
EP1939862A1 (en) | 2008-07-02 |
EP3118849A1 (en) | 2017-01-18 |
EP1742202A1 (en) | 2007-01-10 |
EP1742202A4 (en) | 2007-10-10 |
CN102280109A (zh) | 2011-12-14 |
JP5230782B2 (ja) | 2013-07-10 |
DE602005006551D1 (de) | 2008-06-19 |
EP3118849B1 (en) | 2020-01-01 |
JPWO2005112001A1 (ja) | 2008-03-27 |
JP2011248378A (ja) | 2011-12-08 |
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