DE69615870T2 - Sprachkodierer mit aus aktuellen und vorhergehenden Rahmen extrahierten Merkmalen - Google Patents
Sprachkodierer mit aus aktuellen und vorhergehenden Rahmen extrahierten MerkmalenInfo
- Publication number
- DE69615870T2 DE69615870T2 DE69615870T DE69615870T DE69615870T2 DE 69615870 T2 DE69615870 T2 DE 69615870T2 DE 69615870 T DE69615870 T DE 69615870T DE 69615870 T DE69615870 T DE 69615870T DE 69615870 T2 DE69615870 T2 DE 69615870T2
- Authority
- DE
- Germany
- Prior art keywords
- current
- features extracted
- previous frames
- speech encoder
- 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
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
-
- 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
- G10L19/0018—Speech coding using phonetic or linguistical decoding of the source; Reconstruction using text-to-speech synthesis
-
- 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
- G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
-
- 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
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
- G10L25/90—Pitch determination of speech signals
- G10L2025/906—Pitch tracking
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP07004921A JP3089967B2 (ja) | 1995-01-17 | 1995-01-17 | 音声符号化装置 |
JP7013072A JP3047761B2 (ja) | 1995-01-30 | 1995-01-30 | 音声符号化装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69615870D1 DE69615870D1 (de) | 2001-11-15 |
DE69615870T2 true DE69615870T2 (de) | 2002-04-04 |
Family
ID=26338778
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69615870T Expired - Lifetime DE69615870T2 (de) | 1995-01-17 | 1996-01-16 | Sprachkodierer mit aus aktuellen und vorhergehenden Rahmen extrahierten Merkmalen |
DE69609089T Expired - Lifetime DE69609089T2 (de) | 1995-01-17 | 1996-01-16 | Sprachkodierer mit aus aktuellen und vorhergehenden Rahmen extrahierten Merkmalen |
DE69615227T Expired - Lifetime DE69615227T2 (de) | 1995-01-17 | 1996-01-16 | Sprachkodierer mit aus aktuellen und vorhergehenden Rahmen extrahierten Merkmalen |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69609089T Expired - Lifetime DE69609089T2 (de) | 1995-01-17 | 1996-01-16 | Sprachkodierer mit aus aktuellen und vorhergehenden Rahmen extrahierten Merkmalen |
DE69615227T Expired - Lifetime DE69615227T2 (de) | 1995-01-17 | 1996-01-16 | Sprachkodierer mit aus aktuellen und vorhergehenden Rahmen extrahierten Merkmalen |
Country Status (3)
Country | Link |
---|---|
US (1) | US5787389A (de) |
EP (3) | EP0944038B1 (de) |
DE (3) | DE69615870T2 (de) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09230896A (ja) * | 1996-02-28 | 1997-09-05 | Sony Corp | 音声合成装置 |
JP3268731B2 (ja) | 1996-10-09 | 2002-03-25 | 沖電気工業株式会社 | 光電変換素子 |
JP3067676B2 (ja) * | 1997-02-13 | 2000-07-17 | 日本電気株式会社 | Lspの予測符号化装置及び方法 |
JP3147807B2 (ja) * | 1997-03-21 | 2001-03-19 | 日本電気株式会社 | 信号符号化装置 |
US6208962B1 (en) * | 1997-04-09 | 2001-03-27 | Nec Corporation | Signal coding system |
US6058359A (en) * | 1998-03-04 | 2000-05-02 | Telefonaktiebolaget L M Ericsson | Speech coding including soft adaptability feature |
CA2636552C (en) * | 1997-12-24 | 2011-03-01 | Mitsubishi Denki Kabushiki Kaisha | A method for speech coding, method for speech decoding and their apparatuses |
US7003121B1 (en) * | 1998-04-08 | 2006-02-21 | Bang & Olufsen Technology A/S | Method and an apparatus for processing an auscultation signal |
US7117146B2 (en) * | 1998-08-24 | 2006-10-03 | Mindspeed Technologies, Inc. | System for improved use of pitch enhancement with subcodebooks |
US6311154B1 (en) | 1998-12-30 | 2001-10-30 | Nokia Mobile Phones Limited | Adaptive windows for analysis-by-synthesis CELP-type speech coding |
USRE43209E1 (en) | 1999-11-08 | 2012-02-21 | Mitsubishi Denki Kabushiki Kaisha | Speech coding apparatus and speech decoding apparatus |
JP3594854B2 (ja) * | 1999-11-08 | 2004-12-02 | 三菱電機株式会社 | 音声符号化装置及び音声復号化装置 |
JP2002162998A (ja) * | 2000-11-28 | 2002-06-07 | Fujitsu Ltd | パケット修復処理を伴なう音声符号化方法 |
CN101622664B (zh) * | 2007-03-02 | 2012-02-01 | 松下电器产业株式会社 | 自适应激励矢量量化装置和自适应激励矢量量化方法 |
KR20100006492A (ko) | 2008-07-09 | 2010-01-19 | 삼성전자주식회사 | 부호화 방식 결정 방법 및 장치 |
WO2012070866A2 (ko) * | 2010-11-24 | 2012-05-31 | 엘지전자 주식회사 | 스피치 시그널 부호화 방법 및 복호화 방법 |
CN105096958B (zh) | 2014-04-29 | 2017-04-12 | 华为技术有限公司 | 音频编码方法及相关装置 |
CN105741838B (zh) * | 2016-01-20 | 2019-10-15 | 百度在线网络技术(北京)有限公司 | 语音唤醒方法及装置 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2940005B2 (ja) * | 1989-07-20 | 1999-08-25 | 日本電気株式会社 | 音声符号化装置 |
JPH0398318A (ja) * | 1989-09-11 | 1991-04-23 | Fujitsu Ltd | 音声符号化方式 |
US5226108A (en) * | 1990-09-20 | 1993-07-06 | Digital Voice Systems, Inc. | Processing a speech signal with estimated pitch |
JP3114197B2 (ja) * | 1990-11-02 | 2000-12-04 | 日本電気株式会社 | 音声パラメータ符号化方法 |
JP3151874B2 (ja) * | 1991-02-26 | 2001-04-03 | 日本電気株式会社 | 音声パラメータ符号化方式および装置 |
JP3143956B2 (ja) * | 1991-06-27 | 2001-03-07 | 日本電気株式会社 | 音声パラメータ符号化方式 |
US5371853A (en) * | 1991-10-28 | 1994-12-06 | University Of Maryland At College Park | Method and system for CELP speech coding and codebook for use therewith |
US5495555A (en) * | 1992-06-01 | 1996-02-27 | Hughes Aircraft Company | High quality low bit rate celp-based speech codec |
US5327520A (en) * | 1992-06-04 | 1994-07-05 | At&T Bell Laboratories | Method of use of voice message coder/decoder |
JP2746039B2 (ja) * | 1993-01-22 | 1998-04-28 | 日本電気株式会社 | 音声符号化方式 |
IT1270439B (it) * | 1993-06-10 | 1997-05-05 | Sip | Procedimento e dispositivo per la quantizzazione dei parametri spettrali in codificatori numerici della voce |
US5602961A (en) * | 1994-05-31 | 1997-02-11 | Alaris, Inc. | Method and apparatus for speech compression using multi-mode code excited linear predictive coding |
US5751903A (en) * | 1994-12-19 | 1998-05-12 | Hughes Electronics | Low rate multi-mode CELP codec that encodes line SPECTRAL frequencies utilizing an offset |
-
1996
- 1996-01-16 DE DE69615870T patent/DE69615870T2/de not_active Expired - Lifetime
- 1996-01-16 EP EP99111363A patent/EP0944038B1/de not_active Expired - Lifetime
- 1996-01-16 DE DE69609089T patent/DE69609089T2/de not_active Expired - Lifetime
- 1996-01-16 EP EP96100544A patent/EP0723258B1/de not_active Expired - Lifetime
- 1996-01-16 EP EP99109387A patent/EP0944037B1/de not_active Expired - Lifetime
- 1996-01-16 DE DE69615227T patent/DE69615227T2/de not_active Expired - Lifetime
- 1996-01-17 US US08/588,005 patent/US5787389A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0944038A1 (de) | 1999-09-22 |
EP0723258B1 (de) | 2000-07-05 |
DE69609089T2 (de) | 2000-11-16 |
DE69615870D1 (de) | 2001-11-15 |
EP0944037A1 (de) | 1999-09-22 |
EP0723258A1 (de) | 1996-07-24 |
DE69615227T2 (de) | 2002-04-25 |
DE69615227D1 (de) | 2001-10-18 |
DE69609089D1 (de) | 2000-08-10 |
EP0944037B1 (de) | 2001-10-10 |
US5787389A (en) | 1998-07-28 |
EP0944038B1 (de) | 2001-09-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |