CA1236922A - Methode et appareil de codage de signaux numerique - Google Patents
Methode et appareil de codage de signaux numeriqueInfo
- Publication number
- CA1236922A CA1236922A CA000442281A CA442281A CA1236922A CA 1236922 A CA1236922 A CA 1236922A CA 000442281 A CA000442281 A CA 000442281A CA 442281 A CA442281 A CA 442281A CA 1236922 A CA1236922 A CA 1236922A
- Authority
- CA
- Canada
- Prior art keywords
- signal
- coefficients
- excitation
- covariance
- block
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims abstract 31
- 230000005284 excitation Effects 0.000 claims abstract 54
- 230000015572 biosynthetic process Effects 0.000 claims abstract 19
- 238000003786 synthesis reaction Methods 0.000 claims abstract 19
- 230000003044 adaptive effect Effects 0.000 claims abstract 5
- 239000011159 matrix material Substances 0.000 claims 16
- 230000002123 temporal effect Effects 0.000 claims 9
- 238000001228 spectrum Methods 0.000 claims 5
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000003111 delayed effect Effects 0.000 abstract 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
- G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Analogue/Digital Conversion (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA000442281A CA1236922A (fr) | 1983-11-30 | 1983-11-30 | Methode et appareil de codage de signaux numerique |
AT84112041T ATE42853T1 (de) | 1983-11-30 | 1984-10-08 | Verfahren und einrichtung zur codierung von digitalen signalen. |
EP84112041A EP0149724B1 (fr) | 1983-11-30 | 1984-10-08 | Procédé et dispositif pour le codage de signaux digitaux |
DE8484112041T DE3478065D1 (en) | 1983-11-30 | 1984-10-08 | Method and apparatus for coding digital signals |
JP59250655A JPS60185432A (ja) | 1983-11-30 | 1984-11-29 | デイジタル信号符号化及び剤号化装置及び方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA000442281A CA1236922A (fr) | 1983-11-30 | 1983-11-30 | Methode et appareil de codage de signaux numerique |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1236922A true CA1236922A (fr) | 1988-05-17 |
Family
ID=4126639
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000442281A Expired CA1236922A (fr) | 1983-11-30 | 1983-11-30 | Methode et appareil de codage de signaux numerique |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0149724B1 (fr) |
JP (1) | JPS60185432A (fr) |
AT (1) | ATE42853T1 (fr) |
CA (1) | CA1236922A (fr) |
DE (1) | DE3478065D1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU620384B2 (en) * | 1988-03-28 | 1992-02-20 | Nec Corporation | Linear predictive speech analysis-synthesis apparatus |
US5754976A (en) * | 1990-02-23 | 1998-05-19 | Universite De Sherbrooke | Algebraic codebook with signal-selected pulse amplitude/position combinations for fast coding of speech |
US5701392A (en) * | 1990-02-23 | 1997-12-23 | Universite De Sherbrooke | Depth-first algebraic-codebook search for fast coding of speech |
WO1995001673A1 (fr) * | 1993-06-30 | 1995-01-12 | Royal Melbourne Institute Of Technology | Fenetres de filtrage destinees a la compression de signaux a transformation de fourier |
US6807527B1 (en) * | 1998-02-17 | 2004-10-19 | Motorola, Inc. | Method and apparatus for determination of an optimum fixed codebook vector |
KR100587099B1 (ko) | 2003-05-10 | 2006-06-07 | 엘지전자 주식회사 | 사이클론 방식 진공 청소기의 집진 유니트 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4472832A (en) * | 1981-12-01 | 1984-09-18 | At&T Bell Laboratories | Digital speech coder |
-
1983
- 1983-11-30 CA CA000442281A patent/CA1236922A/fr not_active Expired
-
1984
- 1984-10-08 AT AT84112041T patent/ATE42853T1/de not_active IP Right Cessation
- 1984-10-08 EP EP84112041A patent/EP0149724B1/fr not_active Expired
- 1984-10-08 DE DE8484112041T patent/DE3478065D1/de not_active Expired
- 1984-11-29 JP JP59250655A patent/JPS60185432A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0149724A1 (fr) | 1985-07-31 |
EP0149724B1 (fr) | 1989-05-03 |
JPS60185432A (ja) | 1985-09-20 |
DE3478065D1 (en) | 1989-06-08 |
ATE42853T1 (de) | 1989-05-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |