FI98104B - Förfaranden för generering av en exciteringsvektor och digital talkodare - Google Patents
Förfaranden för generering av en exciteringsvektor och digital talkodareInfo
- Publication number
- FI98104B FI98104B FI912438A FI912438A FI98104B FI 98104 B FI98104 B FI 98104B FI 912438 A FI912438 A FI 912438A FI 912438 A FI912438 A FI 912438A FI 98104 B FI98104 B FI 98104B
- Authority
- FI
- Finland
- Prior art keywords
- procedures
- generating
- speech encoder
- excitation vector
- digital speech
- Prior art date
Links
- 230000005284 excitation Effects 0.000 title 1
- 238000000034 method Methods 0.000 title 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
- G10L19/107—Sparse pulse excitation, e.g. by using algebraic codebook
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computational Linguistics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Algebra (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI912438A FI98104C (sv) | 1991-05-20 | 1991-05-20 | Förfaranden för generering av en exciteringsvektor och digital talkodare |
US07/885,651 US5327519A (en) | 1991-05-20 | 1992-05-19 | Pulse pattern excited linear prediction voice coder |
JP12643192A JP3167787B2 (ja) | 1991-05-20 | 1992-05-19 | ディジタル音声コーダ |
DE69227650T DE69227650T2 (de) | 1991-05-20 | 1992-05-19 | Digitaler Sprachkodierer |
EP92304516A EP0515138B1 (en) | 1991-05-20 | 1992-05-19 | Digital speech coder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI912438A FI98104C (sv) | 1991-05-20 | 1991-05-20 | Förfaranden för generering av en exciteringsvektor och digital talkodare |
Publications (4)
Publication Number | Publication Date |
---|---|
FI912438A0 FI912438A0 (sv) | 1991-05-20 |
FI912438A FI912438A (sv) | 1992-11-21 |
FI98104B true FI98104B (sv) | 1996-12-31 |
FI98104C FI98104C (sv) | 1997-04-10 |
Family
ID=8532557
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI912438A FI98104C (sv) | 1991-05-20 | 1991-05-20 | Förfaranden för generering av en exciteringsvektor och digital talkodare |
Country Status (5)
Country | Link |
---|---|
US (1) | US5327519A (sv) |
EP (1) | EP0515138B1 (sv) |
JP (1) | JP3167787B2 (sv) |
DE (1) | DE69227650T2 (sv) |
FI (1) | FI98104C (sv) |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5717824A (en) * | 1992-08-07 | 1998-02-10 | Pacific Communication Sciences, Inc. | Adaptive speech coder having code excited linear predictor with multiple codebook searches |
US5864650A (en) * | 1992-09-16 | 1999-01-26 | Fujitsu Limited | Speech encoding method and apparatus using tree-structure delta code book |
WO1994007239A1 (en) * | 1992-09-16 | 1994-03-31 | Fujitsu Limited | Speech encoding method and apparatus |
FI95086C (sv) * | 1992-11-26 | 1995-12-11 | Nokia Mobile Phones Ltd | Förfarande för effektiv kodning av en talsignal |
FI96248C (sv) * | 1993-05-06 | 1996-05-27 | Nokia Mobile Phones Ltd | Förfarande för åstadkommande av ett syntesfilter för långtidsintervall samt syntesfilter för talkodrar |
FI94810C (sv) * | 1993-10-11 | 1995-10-25 | Nokia Mobile Phones Ltd | En metod för identifiering av en dålig GSM-talram |
DE69426860T2 (de) * | 1993-12-10 | 2001-07-19 | Nec Corp., Tokio/Tokyo | Sprachcodierer und Verfahren zum Suchen von Codebüchern |
JP2979943B2 (ja) * | 1993-12-14 | 1999-11-22 | 日本電気株式会社 | 音声符号化装置 |
IT1271182B (it) * | 1994-06-20 | 1997-05-27 | Alcatel Italia | Metodo per migliorare le prestazioni dei codificatori vocali |
FR2729246A1 (fr) * | 1995-01-06 | 1996-07-12 | Matra Communication | Procede de codage de parole a analyse par synthese |
FR2729247A1 (fr) * | 1995-01-06 | 1996-07-12 | Matra Communication | Procede de codage de parole a analyse par synthese |
FR2729244B1 (fr) * | 1995-01-06 | 1997-03-28 | Matra Communication | Procede de codage de parole a analyse par synthese |
FR2732148B1 (fr) * | 1995-03-24 | 1997-06-13 | Sgs Thomson Microelectronics | Determination d'un vecteur d'excitation dans un codeur celp |
JPH08272395A (ja) * | 1995-03-31 | 1996-10-18 | Nec Corp | 音声符号化装置 |
JPH08292797A (ja) * | 1995-04-20 | 1996-11-05 | Nec Corp | 音声符号化装置 |
US5778026A (en) * | 1995-04-21 | 1998-07-07 | Ericsson Inc. | Reducing electrical power consumption in a radio transceiver by de-energizing selected components when speech is not present |
US5864797A (en) * | 1995-05-30 | 1999-01-26 | Sanyo Electric Co., Ltd. | Pitch-synchronous speech coding by applying multiple analysis to select and align a plurality of types of code vectors |
US5822724A (en) * | 1995-06-14 | 1998-10-13 | Nahumi; Dror | Optimized pulse location in codebook searching techniques for speech processing |
JP3616432B2 (ja) * | 1995-07-27 | 2005-02-02 | 日本電気株式会社 | 音声符号化装置 |
US5867814A (en) * | 1995-11-17 | 1999-02-02 | National Semiconductor Corporation | Speech coder that utilizes correlation maximization to achieve fast excitation coding, and associated coding method |
JP3137176B2 (ja) * | 1995-12-06 | 2001-02-19 | 日本電気株式会社 | 音声符号化装置 |
FR2742568B1 (fr) * | 1995-12-15 | 1998-02-13 | Catherine Quinquis | Procede d'analyse par prediction lineaire d'un signal audiofrequence, et procedes de codage et de decodage d'un signal audiofrequence en comportant application |
DE19641619C1 (de) * | 1996-10-09 | 1997-06-26 | Nokia Mobile Phones Ltd | Verfahren zur Synthese eines Rahmens eines Sprachsignals |
DE69708693C5 (de) | 1996-11-07 | 2021-10-28 | Godo Kaisha Ip Bridge 1 | Verfahren und Vorrichtung für CELP Sprachcodierung oder -decodierung |
US5960389A (en) * | 1996-11-15 | 1999-09-28 | Nokia Mobile Phones Limited | Methods for generating comfort noise during discontinuous transmission |
US6108624A (en) * | 1997-09-10 | 2000-08-22 | Samsung Electronics Co., Ltd. | Method for improving performance of a voice coder |
CA2275266C (en) * | 1997-10-22 | 2005-06-14 | Matsushita Electric Industrial Co., Ltd. | Speech coder and speech decoder |
FI980132A (sv) | 1998-01-21 | 1999-07-22 | Nokia Mobile Phones Ltd | Adapterande efterfilter |
JP3425423B2 (ja) * | 1998-02-17 | 2003-07-14 | モトローラ・インコーポレイテッド | 固定コードブックにおける最適のベクトルの高速決定のための方法および装置 |
JP3199020B2 (ja) * | 1998-02-27 | 2001-08-13 | 日本電気株式会社 | 音声音楽信号の符号化装置および復号装置 |
US6480822B2 (en) * | 1998-08-24 | 2002-11-12 | Conexant Systems, Inc. | Low complexity random codebook structure |
JP4173940B2 (ja) * | 1999-03-05 | 2008-10-29 | 松下電器産業株式会社 | 音声符号化装置及び音声符号化方法 |
US6782361B1 (en) | 1999-06-18 | 2004-08-24 | Mcgill University | Method and apparatus for providing background acoustic noise during a discontinued/reduced rate transmission mode of a voice transmission system |
EP1959434B1 (en) * | 1999-08-23 | 2013-03-06 | Panasonic Corporation | Speech encoder |
US6980948B2 (en) * | 2000-09-15 | 2005-12-27 | Mindspeed Technologies, Inc. | System of dynamic pulse position tracks for pulse-like excitation in speech coding |
US6789059B2 (en) * | 2001-06-06 | 2004-09-07 | Qualcomm Incorporated | Reducing memory requirements of a codebook vector search |
WO2007096550A2 (fr) * | 2006-02-22 | 2007-08-30 | France Telecom | Codage/decodage perfectionnes d'un signal audionumerique, en technique celp |
JPWO2007129726A1 (ja) * | 2006-05-10 | 2009-09-17 | パナソニック株式会社 | 音声符号化装置及び音声符号化方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4701954A (en) * | 1984-03-16 | 1987-10-20 | American Telephone And Telegraph Company, At&T Bell Laboratories | Multipulse LPC speech processing arrangement |
NL8500843A (nl) * | 1985-03-22 | 1986-10-16 | Koninkl Philips Electronics Nv | Multipuls-excitatie lineair-predictieve spraakcoder. |
US4910781A (en) * | 1987-06-26 | 1990-03-20 | At&T Bell Laboratories | Code excited linear predictive vocoder using virtual searching |
CA1337217C (en) * | 1987-08-28 | 1995-10-03 | Daniel Kenneth Freeman | Speech coding |
US4817157A (en) * | 1988-01-07 | 1989-03-28 | Motorola, Inc. | Digital speech coder having improved vector excitation source |
IT1224453B (it) * | 1988-09-28 | 1990-10-04 | Sip | Procedimento e dispositivo per la codifica decodifica di segnali vocali con l'impiego di un eccitazione a impulsi multipli |
CA2019801C (en) * | 1989-06-28 | 1994-05-31 | Tomohiko Taniguchi | System for speech coding and an apparatus for the same |
US5097508A (en) * | 1989-08-31 | 1992-03-17 | Codex Corporation | Digital speech coder having improved long term lag parameter determination |
JPH0451199A (ja) * | 1990-06-18 | 1992-02-19 | Fujitsu Ltd | 音声符号化・復号化方式 |
-
1991
- 1991-05-20 FI FI912438A patent/FI98104C/sv active IP Right Grant
-
1992
- 1992-05-19 EP EP92304516A patent/EP0515138B1/en not_active Expired - Lifetime
- 1992-05-19 JP JP12643192A patent/JP3167787B2/ja not_active Expired - Fee Related
- 1992-05-19 US US07/885,651 patent/US5327519A/en not_active Expired - Lifetime
- 1992-05-19 DE DE69227650T patent/DE69227650T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FI912438A0 (sv) | 1991-05-20 |
EP0515138A3 (en) | 1993-06-02 |
DE69227650T2 (de) | 1999-06-24 |
DE69227650D1 (de) | 1999-01-07 |
EP0515138A2 (en) | 1992-11-25 |
JP3167787B2 (ja) | 2001-05-21 |
JPH05210399A (ja) | 1993-08-20 |
FI98104C (sv) | 1997-04-10 |
EP0515138B1 (en) | 1998-11-25 |
FI912438A (sv) | 1992-11-21 |
US5327519A (en) | 1994-07-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Patent granted |
Owner name: NOKIA MATKAPUHELIMET OY |
|
BB | Publication of examined application |