CA2154192A1 - Codeur de paroles - Google Patents
Codeur de parolesInfo
- Publication number
- CA2154192A1 CA2154192A1 CA002154192A CA2154192A CA2154192A1 CA 2154192 A1 CA2154192 A1 CA 2154192A1 CA 002154192 A CA002154192 A CA 002154192A CA 2154192 A CA2154192 A CA 2154192A CA 2154192 A1 CA2154192 A1 CA 2154192A1
- Authority
- CA
- Canada
- Prior art keywords
- delay
- code
- codes
- speech
- loop
- 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.)
- Abandoned
Links
- 238000011156 evaluation Methods 0.000 claims description 65
- 230000003044 adaptive effect Effects 0.000 claims description 63
- 239000013598 vector Substances 0.000 claims description 47
- 238000012545 processing Methods 0.000 claims description 23
- 238000004458 analytical method Methods 0.000 claims description 9
- 238000013139 quantization Methods 0.000 claims description 8
- 239000000284 extract Substances 0.000 abstract description 4
- 230000006870 function Effects 0.000 description 59
- 238000010586 diagram Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 12
- 101100353161 Drosophila melanogaster prel gene Proteins 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 230000009467 reduction Effects 0.000 description 8
- 239000002674 ointment Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000035807 sensation Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 241000272470 Circus Species 0.000 description 2
- 101150087426 Gnal gene Proteins 0.000 description 2
- 101100521130 Mus musculus Prelid1 gene Proteins 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 208000006379 syphilis Diseases 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- XUKUURHRXDUEBC-KAYWLYCHSA-N Atorvastatin Chemical compound C=1C=CC=CC=1C1=C(C=2C=CC(F)=CC=2)N(CC[C@@H](O)C[C@@H](O)CC(O)=O)C(C(C)C)=C1C(=O)NC1=CC=CC=C1 XUKUURHRXDUEBC-KAYWLYCHSA-N 0.000 description 1
- 241000251556 Chordata Species 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 241001547070 Eriodes Species 0.000 description 1
- 241000276457 Gadidae Species 0.000 description 1
- 244000287680 Garcinia dulcis Species 0.000 description 1
- 241001163743 Perlodes Species 0.000 description 1
- 241001237728 Precis Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 1
- 210000000941 bile Anatomy 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- ACWBQPMHZXGDFX-QFIPXVFZSA-N valsartan Chemical class C1=CC(CN(C(=O)CCCC)[C@@H](C(C)C)C(O)=O)=CC=C1C1=CC=CC=C1C1=NN=NN1 ACWBQPMHZXGDFX-QFIPXVFZSA-N 0.000 description 1
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
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
-
- 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
- G10L2019/0001—Codebooks
- G10L2019/0003—Backward prediction of gain
-
- 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
- G10L2019/0001—Codebooks
- G10L2019/0011—Long term prediction filters, i.e. pitch estimation
-
- 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
- G10L2019/0001—Codebooks
- G10L2019/0013—Codebook search algorithms
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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6187903A JPH0830299A (ja) | 1994-07-19 | 1994-07-19 | 音声符号化装置 |
JP6-187903 | 1994-07-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2154192A1 true CA2154192A1 (fr) | 1996-01-20 |
Family
ID=16214222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002154192A Abandoned CA2154192A1 (fr) | 1994-07-19 | 1995-07-19 | Codeur de paroles |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0694907A3 (fr) |
JP (1) | JPH0830299A (fr) |
CA (1) | CA2154192A1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08292798A (ja) * | 1995-04-24 | 1996-11-05 | Nec Corp | 音声再生制御方式 |
JP3343082B2 (ja) | 1998-10-27 | 2002-11-11 | 松下電器産業株式会社 | Celp型音声符号化装置 |
JP3594854B2 (ja) | 1999-11-08 | 2004-12-02 | 三菱電機株式会社 | 音声符号化装置及び音声復号化装置 |
USRE43209E1 (en) | 1999-11-08 | 2012-02-21 | Mitsubishi Denki Kabushiki Kaisha | Speech coding apparatus and speech decoding apparatus |
JPWO2008072732A1 (ja) * | 2006-12-14 | 2010-04-02 | パナソニック株式会社 | 音声符号化装置および音声符号化方法 |
JP4525694B2 (ja) * | 2007-03-27 | 2010-08-18 | パナソニック株式会社 | 音声符号化装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02500620A (ja) * | 1987-08-28 | 1990-03-01 | ブリテツシユ・テレコミユニケイシヨンズ・パブリツク・リミテツド・カンパニー | コード化通信システム |
US5097508A (en) | 1989-08-31 | 1992-03-17 | Codex Corporation | Digital speech coder having improved long term lag parameter determination |
JP3254696B2 (ja) * | 1991-09-25 | 2002-02-12 | 三菱電機株式会社 | 音声符号化装置、音声復号化装置および音源生成方法 |
US5495555A (en) * | 1992-06-01 | 1996-02-27 | Hughes Aircraft Company | High quality low bit rate celp-based speech codec |
-
1994
- 1994-07-19 JP JP6187903A patent/JPH0830299A/ja active Pending
-
1995
- 1995-07-18 EP EP95111278A patent/EP0694907A3/fr not_active Withdrawn
- 1995-07-19 CA CA002154192A patent/CA2154192A1/fr not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
JPH0830299A (ja) | 1996-02-02 |
EP0694907A2 (fr) | 1996-01-31 |
EP0694907A3 (fr) | 1997-10-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
FZDE | Discontinued |