CA2191972A1 - Method and apparatus for low rate coding and decoding - Google Patents
Method and apparatus for low rate coding and decodingInfo
- Publication number
- CA2191972A1 CA2191972A1 CA002191972A CA2191972A CA2191972A1 CA 2191972 A1 CA2191972 A1 CA 2191972A1 CA 002191972 A CA002191972 A CA 002191972A CA 2191972 A CA2191972 A CA 2191972A CA 2191972 A1 CA2191972 A1 CA 2191972A1
- Authority
- CA
- Canada
- Prior art keywords
- codeword
- quantizer
- prequantizer
- index
- signal
- 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
- 238000000034 method Methods 0.000 title claims description 22
- 239000013598 vector Substances 0.000 claims description 58
- 238000004891 communication Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims 2
- 230000000875 corresponding effect Effects 0.000 description 12
- 230000003595 spectral effect Effects 0.000 description 8
- 238000013459 approach Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000004075 alteration Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000010267 cellular communication Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000026683 transduction Effects 0.000 description 1
- 238000010361 transduction Methods 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
- G10L19/02—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
- G10L19/038—Vector quantisation, e.g. TwinVQ audio
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Computational Linguistics (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Executing Machine-Instructions (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US42478095A | 1995-04-19 | 1995-04-19 | |
| US08/424,780 | 1995-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2191972A1 true CA2191972A1 (en) | 1996-10-31 |
Family
ID=23683842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002191972A Abandoned CA2191972A1 (en) | 1995-04-19 | 1996-03-07 | Method and apparatus for low rate coding and decoding |
Country Status (14)
| Country | Link |
|---|---|
| JP (1) | JPH10503633A (pt) |
| CN (1) | CN1150853A (pt) |
| AU (1) | AU683058B2 (pt) |
| BR (1) | BR9606292A (pt) |
| CA (1) | CA2191972A1 (pt) |
| DE (1) | DE19680399T1 (pt) |
| FI (1) | FI965131A0 (pt) |
| FR (1) | FR2733345B1 (pt) |
| GB (1) | GB2304508A (pt) |
| IT (1) | IT1285178B1 (pt) |
| MX (1) | MX9606368A (pt) |
| PL (1) | PL318012A1 (pt) |
| SE (1) | SE9604443L (pt) |
| WO (1) | WO1996034383A1 (pt) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9454974B2 (en) * | 2006-07-31 | 2016-09-27 | Qualcomm Incorporated | Systems, methods, and apparatus for gain factor limiting |
| CN104637483A (zh) * | 2015-02-03 | 2015-05-20 | 中国电子科技集团公司第五十八研究所 | 基于多通道的低速率语音编解码系统 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE6901749U (de) * | 1969-01-17 | 1969-05-22 | Huettenwerke Siegerland Ag | Diffusor fuer bundgluehoefen |
| JPH02287399A (ja) * | 1989-04-28 | 1990-11-27 | Fujitsu Ltd | ベクトル量子化制御方式 |
| US5010574A (en) * | 1989-06-13 | 1991-04-23 | At&T Bell Laboratories | Vector quantizer search arrangement |
| US4974099A (en) * | 1989-06-21 | 1990-11-27 | International Mobile Machines Corporation | Communication signal compression system and method |
| US4963030A (en) * | 1989-11-29 | 1990-10-16 | California Institute Of Technology | Distributed-block vector quantization coder |
| FR2709366B1 (fr) * | 1993-03-26 | 2001-09-14 | Motorola Inc | Procédé de stockage de vecteurs de coefficient de réflexion. |
-
1996
- 1996-03-07 CN CN96190352.XA patent/CN1150853A/zh active Pending
- 1996-03-07 BR BR9606292A patent/BR9606292A/pt unknown
- 1996-03-07 WO PCT/US1996/003235 patent/WO1996034383A1/en active Application Filing
- 1996-03-07 JP JP8532495A patent/JPH10503633A/ja active Pending
- 1996-03-07 GB GB9625742A patent/GB2304508A/en not_active Withdrawn
- 1996-03-07 CA CA002191972A patent/CA2191972A1/en not_active Abandoned
- 1996-03-07 MX MX9606368A patent/MX9606368A/es unknown
- 1996-03-07 DE DE19680399T patent/DE19680399T1/de not_active Ceased
- 1996-03-07 PL PL96318012A patent/PL318012A1/xx unknown
- 1996-03-07 AU AU66349/96A patent/AU683058B2/en not_active Ceased
- 1996-03-27 FR FR9603787A patent/FR2733345B1/fr not_active Expired - Fee Related
- 1996-04-15 IT IT96RM000235A patent/IT1285178B1/it active IP Right Grant
- 1996-12-03 SE SE9604443A patent/SE9604443L/xx not_active Application Discontinuation
- 1996-12-19 FI FI965131A patent/FI965131A0/fi unknown
Also Published As
| Publication number | Publication date |
|---|---|
| MX9606368A (es) | 1997-03-29 |
| FR2733345B1 (fr) | 1997-07-25 |
| ITRM960235A0 (pt) | 1996-04-15 |
| AU683058B2 (en) | 1997-10-30 |
| JPH10503633A (ja) | 1998-03-31 |
| GB9625742D0 (en) | 1997-01-29 |
| FR2733345A1 (fr) | 1996-10-25 |
| AU6634996A (en) | 1996-11-18 |
| SE9604443L (sv) | 1997-02-19 |
| ITRM960235A1 (it) | 1997-10-15 |
| SE9604443D0 (sv) | 1996-12-03 |
| IT1285178B1 (it) | 1998-06-03 |
| FI965131A (fi) | 1996-12-19 |
| DE19680399T1 (de) | 1997-09-18 |
| WO1996034383A1 (en) | 1996-10-31 |
| GB2304508A (en) | 1997-03-19 |
| PL318012A1 (en) | 1997-05-12 |
| BR9606292A (pt) | 1997-11-18 |
| FI965131A0 (fi) | 1996-12-19 |
| CN1150853A (zh) | 1997-05-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |