DE69822579D1 - Vorrichtung zur Sprachcodierung und Langzeitprädiktion eines eingegebenen Sprachsignals - Google Patents
Vorrichtung zur Sprachcodierung und Langzeitprädiktion eines eingegebenen SprachsignalsInfo
- Publication number
- DE69822579D1 DE69822579D1 DE69822579T DE69822579T DE69822579D1 DE 69822579 D1 DE69822579 D1 DE 69822579D1 DE 69822579 T DE69822579 T DE 69822579T DE 69822579 T DE69822579 T DE 69822579T DE 69822579 D1 DE69822579 D1 DE 69822579D1
- Authority
- DE
- Germany
- Prior art keywords
- long
- term prediction
- speech signal
- coding
- input speech
- 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 - Lifetime
Links
- 230000007774 longterm Effects 0.000 title 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
- G10L19/09—Long term prediction, i.e. removing periodical redundancies, e.g. by using adaptive codebook or pitch predictor
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27373897 | 1997-09-20 | ||
| JP27373897A JP3263347B2 (ja) | 1997-09-20 | 1997-09-20 | 音声符号化装置及び音声符号化におけるピッチ予測方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69822579D1 true DE69822579D1 (de) | 2004-04-29 |
| DE69822579T2 DE69822579T2 (de) | 2004-08-05 |
Family
ID=17531887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69822579T Expired - Lifetime DE69822579T2 (de) | 1997-09-20 | 1998-09-17 | Vorrichtung zur Sprachcodierung und Langzeitprädiktion eines eingegebenen Sprachsignals |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6243673B1 (de) |
| EP (1) | EP0903729B1 (de) |
| JP (1) | JP3263347B2 (de) |
| DE (1) | DE69822579T2 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4857468B2 (ja) * | 2001-01-25 | 2012-01-18 | ソニー株式会社 | データ処理装置およびデータ処理方法、並びにプログラムおよび記録媒体 |
| JP3582589B2 (ja) * | 2001-03-07 | 2004-10-27 | 日本電気株式会社 | 音声符号化装置及び音声復号化装置 |
| JP4245288B2 (ja) * | 2001-11-13 | 2009-03-25 | パナソニック株式会社 | 音声符号化装置および音声復号化装置 |
| DE602008005250D1 (de) | 2008-01-04 | 2011-04-14 | Dolby Sweden Ab | Audiokodierer und -dekodierer |
| US8352841B2 (en) * | 2009-06-24 | 2013-01-08 | Lsi Corporation | Systems and methods for out of order Y-sample memory management |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5195168A (en) * | 1991-03-15 | 1993-03-16 | Codex Corporation | Speech coder and method having spectral interpolation and fast codebook search |
| US5396576A (en) * | 1991-05-22 | 1995-03-07 | Nippon Telegraph And Telephone Corporation | Speech coding and decoding methods using adaptive and random code books |
| US5265190A (en) * | 1991-05-31 | 1993-11-23 | Motorola, Inc. | CELP vocoder with efficient adaptive codebook search |
| US5179594A (en) * | 1991-06-12 | 1993-01-12 | Motorola, Inc. | Efficient calculation of autocorrelation coefficients for CELP vocoder adaptive codebook |
| US5495555A (en) * | 1992-06-01 | 1996-02-27 | Hughes Aircraft Company | High quality low bit rate celp-based speech codec |
| FR2700632B1 (fr) * | 1993-01-21 | 1995-03-24 | France Telecom | Système de codage-décodage prédictif d'un signal numérique de parole par transformée adaptative à codes imbriqués. |
| JP3209248B2 (ja) | 1993-07-05 | 2001-09-17 | 日本電信電話株式会社 | 音声の励振信号符号化法 |
| US5784532A (en) | 1994-02-16 | 1998-07-21 | Qualcomm Incorporated | Application specific integrated circuit (ASIC) for performing rapid speech compression in a mobile telephone system |
| EP0796490B1 (de) | 1995-10-11 | 2000-08-02 | Koninklijke Philips Electronics N.V. | Verfahren und vorrichtung zur signalprädiktion für einen sprachkodierer |
-
1997
- 1997-09-20 JP JP27373897A patent/JP3263347B2/ja not_active Expired - Fee Related
-
1998
- 1998-09-15 US US09/153,299 patent/US6243673B1/en not_active Expired - Fee Related
- 1998-09-17 EP EP98117652A patent/EP0903729B1/de not_active Expired - Lifetime
- 1998-09-17 DE DE69822579T patent/DE69822579T2/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0903729A3 (de) | 1999-12-29 |
| JP3263347B2 (ja) | 2002-03-04 |
| JPH1195799A (ja) | 1999-04-09 |
| EP0903729B1 (de) | 2004-03-24 |
| US6243673B1 (en) | 2001-06-05 |
| DE69822579T2 (de) | 2004-08-05 |
| EP0903729A2 (de) | 1999-03-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition |