DE69126062D1 - System zur Sprachcodierung und -decodierung - Google Patents
System zur Sprachcodierung und -decodierungInfo
- Publication number
- DE69126062D1 DE69126062D1 DE69126062T DE69126062T DE69126062D1 DE 69126062 D1 DE69126062 D1 DE 69126062D1 DE 69126062 T DE69126062 T DE 69126062T DE 69126062 T DE69126062 T DE 69126062T DE 69126062 D1 DE69126062 D1 DE 69126062D1
- Authority
- DE
- Germany
- Prior art keywords
- vector
- optimum
- decoding system
- coding
- speech coding
- 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 - Fee Related
Links
- 230000003044 adaptive effect Effects 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
- 230000001131 transforming 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
- G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
-
- 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
- G10L19/083—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being an excitation gain
-
- 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
- G10L2019/0001—Codebooks
- G10L2019/0003—Backward prediction of gain
-
- 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
- G10L2019/0001—Codebooks
- G10L2019/0011—Long term prediction filters, i.e. pitch estimation
-
- 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
- G10L2019/0001—Codebooks
- G10L2019/0013—Codebook search algorithms
-
- 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/27—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the analysis technique
Landscapes
- Engineering & Computer Science (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2161041A JPH0451199A (ja) | 1990-06-18 | 1990-06-18 | 音声符号化・復号化方式 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69126062D1 true DE69126062D1 (de) | 1997-06-19 |
DE69126062T2 DE69126062T2 (de) | 1997-10-09 |
Family
ID=15727475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69126062T Expired - Fee Related DE69126062T2 (de) | 1990-06-18 | 1991-06-18 | System zur Sprachcodierung und -decodierung |
Country Status (5)
Country | Link |
---|---|
US (1) | US5799131A (de) |
EP (1) | EP0462559B1 (de) |
JP (1) | JPH0451199A (de) |
CA (1) | CA2044750C (de) |
DE (1) | DE69126062T2 (de) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2776050B2 (ja) * | 1991-02-26 | 1998-07-16 | 日本電気株式会社 | 音声符号化方式 |
FI98104C (fi) * | 1991-05-20 | 1997-04-10 | Nokia Mobile Phones Ltd | Menetelmä herätevektorin generoimiseksi ja digitaalinen puhekooderi |
US5396576A (en) * | 1991-05-22 | 1995-03-07 | Nippon Telegraph And Telephone Corporation | Speech coding and decoding methods using adaptive and random code books |
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. |
JP2746039B2 (ja) * | 1993-01-22 | 1998-04-28 | 日本電気株式会社 | 音声符号化方式 |
EP0654909A4 (de) * | 1993-06-10 | 1997-09-10 | Oki Electric Ind Co Ltd | Celp kodierer und dekodierer. |
WO1994029965A1 (fr) * | 1993-06-10 | 1994-12-22 | Oki Electric Industry Co., Ltd. | Codeur-decodeur predictif lineaire a excitation par codes |
EP1355298B1 (de) * | 1993-06-10 | 2007-02-21 | Oki Electric Industry Company, Limited | CELP Kodierer und Dekodierer |
JP3321976B2 (ja) * | 1994-04-01 | 2002-09-09 | 富士通株式会社 | 信号処理装置および信号処理方法 |
JP3328080B2 (ja) * | 1994-11-22 | 2002-09-24 | 沖電気工業株式会社 | コード励振線形予測復号器 |
US5751903A (en) * | 1994-12-19 | 1998-05-12 | Hughes Electronics | Low rate multi-mode CELP codec that encodes line SPECTRAL frequencies utilizing an offset |
JP3707154B2 (ja) * | 1996-09-24 | 2005-10-19 | ソニー株式会社 | 音声符号化方法及び装置 |
TW408298B (en) * | 1997-08-28 | 2000-10-11 | Texas Instruments Inc | Improved method for switched-predictive quantization |
GB2338630B (en) * | 1998-06-20 | 2000-07-26 | Motorola Ltd | Speech decoder and method of operation |
US7072832B1 (en) * | 1998-08-24 | 2006-07-04 | Mindspeed Technologies, Inc. | System for speech encoding having an adaptive encoding arrangement |
US6959274B1 (en) | 1999-09-22 | 2005-10-25 | Mindspeed Technologies, Inc. | Fixed rate speech compression system and method |
DE60126149T8 (de) * | 2000-11-27 | 2008-01-31 | Nippon Telegraph And Telephone Corp. | Verfahren, einrichtung und programm zum codieren und decodieren eines akustischen parameters und verfahren, einrichtung und programm zum codieren und decodieren von klängen |
US7778826B2 (en) * | 2005-01-13 | 2010-08-17 | Intel Corporation | Beamforming codebook generation system and associated methods |
EP3319087B1 (de) | 2011-03-10 | 2019-08-21 | Telefonaktiebolaget LM Ericsson (publ) | Füllung von nichtkodierten subvektoren bei transformationskodierten audiosignalen |
CN113948085B (zh) * | 2021-12-22 | 2022-03-25 | 中国科学院自动化研究所 | 语音识别方法、***、电子设备和存储介质 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1252568A (en) * | 1984-12-24 | 1989-04-11 | Kazunori Ozawa | Low bit-rate pattern encoding and decoding capable of reducing an information transmission rate |
US4899385A (en) * | 1987-06-26 | 1990-02-06 | American Telephone And Telegraph Company | Code excited linear predictive vocoder |
US4896361A (en) * | 1988-01-07 | 1990-01-23 | Motorola, Inc. | Digital speech coder having improved vector excitation source |
IL94119A (en) * | 1989-06-23 | 1996-06-18 | Motorola Inc | Digital voice recorder |
-
1990
- 1990-06-18 JP JP2161041A patent/JPH0451199A/ja active Pending
-
1991
- 1991-06-17 CA CA002044750A patent/CA2044750C/en not_active Expired - Fee Related
- 1991-06-18 DE DE69126062T patent/DE69126062T2/de not_active Expired - Fee Related
- 1991-06-18 EP EP91109947A patent/EP0462559B1/de not_active Expired - Lifetime
-
1997
- 1997-03-03 US US08/811,451 patent/US5799131A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0451199A (ja) | 1992-02-19 |
EP0462559B1 (de) | 1997-05-14 |
DE69126062T2 (de) | 1997-10-09 |
CA2044750A1 (en) | 1991-12-19 |
EP0462559A3 (en) | 1992-08-05 |
EP0462559A2 (de) | 1991-12-27 |
CA2044750C (en) | 1996-03-05 |
US5799131A (en) | 1998-08-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69126062D1 (de) | System zur Sprachcodierung und -decodierung | |
ATE233008T1 (de) | System zur sprachkodierung | |
EP2154680A3 (de) | Verfahren und Vorrichtung zur Sprachkodierung | |
JPS6440899A (en) | Cord excitation linearity prediction vocoder using false search | |
EP0770990A3 (de) | Verfahren und Vorrichtung zur Sprachkodierung und -dekodierung | |
SG43428A1 (en) | Speech encoding method and apparatus | |
EP1752968A3 (de) | Sprachkodiergerät und Sprachdekodiergerät | |
FI934424A (fi) | Tid-frekvens -interpolering med tillaempning pao laoghastighets talkodning | |
KR960016291A (ko) | 코딩 시스템의 성능을 증대시키기 위한 방법 및 디코더 프리프로세서 | |
DE69232892D1 (de) | Sprachkodierungssystem | |
DE69129385D1 (de) | Sprachkodiersystem | |
DE69128407D1 (de) | Verfahren und Einrichtung zur Übertragung mit niedriger Bitrate eines Sprachsignals mittels CELP-Codierung | |
KR100421648B1 (ko) | 음성코딩을 위한 적응성 표준 | |
EP1041541A4 (de) | Celp sprachkodierer | |
DE68913691D1 (de) | System zur Sprachcodierung und -decodierung. | |
DE69703233D1 (de) | Verfahren und Systeme zur Sprachkodierung | |
CA2090205A1 (en) | Speech coding system | |
EP1355298A3 (de) | CELP Kodierer und Dekodierer | |
CA2170007A1 (en) | Determination of Gain for Pitch Period in Coding of Speech Signal | |
JPH06130996A (ja) | コード励振線形予測符号化装置及び復号化装置 | |
KR970031381A (ko) | 코드 여기 선형 예측 부호화의 잡음 코드북 작성 방법 | |
KR970013777A (ko) | 선형예측 부호화방법의 잡음코드북 작성방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |