CA2355194A1 - Decodeur de langage a large bande - Google Patents
Decodeur de langage a large bande Download PDFInfo
- Publication number
- CA2355194A1 CA2355194A1 CA002355194A CA2355194A CA2355194A1 CA 2355194 A1 CA2355194 A1 CA 2355194A1 CA 002355194 A CA002355194 A CA 002355194A CA 2355194 A CA2355194 A CA 2355194A CA 2355194 A1 CA2355194 A1 CA 2355194A1
- Authority
- CA
- Canada
- Prior art keywords
- nth
- subband
- signal
- coefficients
- lpc
- 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
- 230000005284 excitation Effects 0.000 claims abstract description 87
- 230000002194 synthesizing effect Effects 0.000 claims description 18
- 238000013139 quantization Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Landscapes
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08161286A JP3092653B2 (ja) | 1996-06-21 | 1996-06-21 | 広帯域音声符号化装置及び音声復号装置並びに音声符号化復号装置 |
| JP161286/1996 | 1996-06-21 | ||
| CA002208384A CA2208384C (fr) | 1996-06-21 | 1997-06-20 | Systemes de codage de la parole fonctionnant sur une bande large |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002208384A Division CA2208384C (fr) | 1996-06-21 | 1997-06-20 | Systemes de codage de la parole fonctionnant sur une bande large |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2355194A1 true CA2355194A1 (fr) | 1997-12-21 |
Family
ID=25679439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002355194A Abandoned CA2355194A1 (fr) | 1996-06-21 | 1997-06-20 | Decodeur de langage a large bande |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2355194A1 (fr) |
-
1997
- 1997-06-20 CA CA002355194A patent/CA2355194A1/fr not_active Abandoned
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101120911B1 (ko) | 음성신호 복호화 장치 및 음성신호 부호화 장치 | |
| US5778335A (en) | Method and apparatus for efficient multiband celp wideband speech and music coding and decoding | |
| US8315880B2 (en) | Method for binary coding of quantization indices of a signal envelope, method for decoding a signal envelope and corresponding coding and decoding modules | |
| JP4662673B2 (ja) | 広帯域音声及びオーディオ信号復号器における利得平滑化 | |
| EP0772186B1 (fr) | Procédé et dispositif de codage de la parole | |
| KR101435893B1 (ko) | 대역폭 확장 기법 및 스테레오 부호화 기법을 이용한오디오 신호의 부호화/복호화 방법 및 장치 | |
| KR100721537B1 (ko) | 광대역 음성 부호화기의 고대역 음성 부호화 장치 및 그방법 | |
| US6678655B2 (en) | Method and system for low bit rate speech coding with speech recognition features and pitch providing reconstruction of the spectral envelope | |
| Edler et al. | Audio coding using a psychoacoustic pre-and post-filter | |
| US8386267B2 (en) | Stereo signal encoding device, stereo signal decoding device and methods for them | |
| CA2412449C (fr) | Modele ameliore de la parole et methodes d'analyse, de synthese et de quantification | |
| KR20060090995A (ko) | 스펙트럼 부호화 장치, 스펙트럼 복호화 장치, 음향 신호송신 장치, 음향 신호 수신장치 및 이들의 방법 | |
| EP1222659A1 (fr) | Vocodeur harmonique a codage predictif lineaire (lpc) avec structure a supertrame | |
| US6687667B1 (en) | Method for quantizing speech coder parameters | |
| KR20040005838A (ko) | 음성 코덱에서 의사 고대역 신호 추정 방법 및 시스템 | |
| EP0801377A2 (fr) | Procédé et appareil pour coder un signal | |
| US6778953B1 (en) | Method and apparatus for representing masked thresholds in a perceptual audio coder | |
| US5937378A (en) | Wideband speech coder and decoder that band divides an input speech signal and performs analysis on the band-divided speech signal | |
| US5873060A (en) | Signal coder for wide-band signals | |
| EP0926659B1 (fr) | Procédé de codage et décodage de parole | |
| US6073093A (en) | Combined residual and analysis-by-synthesis pitch-dependent gain estimation for linear predictive coders | |
| EP0867862A2 (fr) | Système de codage et décodage de la parole et de sons musicaux | |
| CA2213020C (fr) | Quantificateur spectral de la parole a large bande | |
| US6801887B1 (en) | Speech coding exploiting the power ratio of different speech signal components | |
| CA2355194A1 (fr) | Decodeur de langage a large bande |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |