DE69921066D1 - Verfahren und Vorrichtung zur Sprachkodierung - Google Patents
Verfahren und Vorrichtung zur SprachkodierungInfo
- Publication number
- DE69921066D1 DE69921066D1 DE1999621066 DE69921066T DE69921066D1 DE 69921066 D1 DE69921066 D1 DE 69921066D1 DE 1999621066 DE1999621066 DE 1999621066 DE 69921066 T DE69921066 T DE 69921066T DE 69921066 D1 DE69921066 D1 DE 69921066D1
- Authority
- DE
- Germany
- Prior art keywords
- speech 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 - 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
- G10L19/04—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
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33780598 | 1998-11-27 | ||
JP33780598A JP3180786B2 (ja) | 1998-11-27 | 1998-11-27 | 音声符号化方法及び音声符号化装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69921066D1 true DE69921066D1 (de) | 2004-11-18 |
DE69921066T2 DE69921066T2 (de) | 2005-11-10 |
Family
ID=18312144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69921066T Expired - Lifetime DE69921066T2 (de) | 1998-11-27 | 1999-11-29 | Verfahren und Vorrichtung zur Sprachkodierung |
Country Status (5)
Country | Link |
---|---|
US (1) | US6581031B1 (de) |
EP (1) | EP1005022B1 (de) |
JP (1) | JP3180786B2 (de) |
CA (1) | CA2290859C (de) |
DE (1) | DE69921066T2 (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1169117C (zh) * | 1996-11-07 | 2004-09-29 | 松下电器产业株式会社 | 声源矢量生成装置以及声音编码装置和声音解码装置 |
JP3180786B2 (ja) | 1998-11-27 | 2001-06-25 | 日本電気株式会社 | 音声符号化方法及び音声符号化装置 |
US7167828B2 (en) | 2000-01-11 | 2007-01-23 | Matsushita Electric Industrial Co., Ltd. | Multimode speech coding apparatus and decoding apparatus |
US6879955B2 (en) * | 2001-06-29 | 2005-04-12 | Microsoft Corporation | Signal modification based on continuous time warping for low bit rate CELP coding |
JP3888097B2 (ja) * | 2001-08-02 | 2007-02-28 | 松下電器産業株式会社 | ピッチ周期探索範囲設定装置、ピッチ周期探索装置、復号化適応音源ベクトル生成装置、音声符号化装置、音声復号化装置、音声信号送信装置、音声信号受信装置、移動局装置、及び基地局装置 |
US7792670B2 (en) * | 2003-12-19 | 2010-09-07 | Motorola, Inc. | Method and apparatus for speech coding |
US7643414B1 (en) * | 2004-02-10 | 2010-01-05 | Avaya Inc. | WAN keeper efficient bandwidth management |
US9058812B2 (en) * | 2005-07-27 | 2015-06-16 | Google Technology Holdings LLC | Method and system for coding an information signal using pitch delay contour adjustment |
WO2008001866A1 (fr) * | 2006-06-29 | 2008-01-03 | Panasonic Corporation | dispositif de codage vocal et procédé de codage vocal |
WO2008064697A1 (en) * | 2006-11-29 | 2008-06-05 | Loquendo S.P.A. | Multicodebook source -dependent coding and decoding |
BRPI0808202A8 (pt) * | 2007-03-02 | 2016-11-22 | Panasonic Corp | Dispositivo de codificação e método de codificação. |
US8521519B2 (en) * | 2007-03-02 | 2013-08-27 | Panasonic Corporation | Adaptive audio signal source vector quantization device and adaptive audio signal source vector quantization method that search for pitch period based on variable resolution |
WO2008155919A1 (ja) * | 2007-06-21 | 2008-12-24 | Panasonic Corporation | 適応音源ベクトル量子化装置および適応音源ベクトル量子化方法 |
CN100578619C (zh) | 2007-11-05 | 2010-01-06 | 华为技术有限公司 | 编码方法和编码器 |
US8862465B2 (en) * | 2010-09-17 | 2014-10-14 | Qualcomm Incorporated | Determining pitch cycle energy and scaling an excitation signal |
US20170365255A1 (en) * | 2016-06-15 | 2017-12-21 | Adam Kupryjanow | Far field automatic speech recognition pre-processing |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
JP3254687B2 (ja) * | 1991-02-26 | 2002-02-12 | 日本電気株式会社 | 音声符号化方式 |
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 |
US5734789A (en) * | 1992-06-01 | 1998-03-31 | Hughes Electronics | Voiced, unvoiced or noise modes in a CELP vocoder |
JP2746039B2 (ja) | 1993-01-22 | 1998-04-28 | 日本電気株式会社 | 音声符号化方式 |
IT1270438B (it) * | 1993-06-10 | 1997-05-05 | Sip | Procedimento e dispositivo per la determinazione del periodo del tono fondamentale e la classificazione del segnale vocale in codificatori numerici della voce |
JP3003531B2 (ja) | 1995-01-05 | 2000-01-31 | 日本電気株式会社 | 音声符号化装置 |
JP3089967B2 (ja) | 1995-01-17 | 2000-09-18 | 日本電気株式会社 | 音声符号化装置 |
JPH08320700A (ja) | 1995-05-26 | 1996-12-03 | Nec Corp | 音声符号化装置 |
US5664055A (en) * | 1995-06-07 | 1997-09-02 | Lucent Technologies Inc. | CS-ACELP speech compression system with adaptive pitch prediction filter gain based on a measure of periodicity |
US5819213A (en) * | 1996-01-31 | 1998-10-06 | Kabushiki Kaisha Toshiba | Speech encoding and decoding with pitch filter range unrestricted by codebook range and preselecting, then increasing, search candidates from linear overlap codebooks |
DE69737012T2 (de) * | 1996-08-02 | 2007-06-06 | Matsushita Electric Industrial Co., Ltd., Kadoma | Sprachkodierer, sprachdekodierer und aufzeichnungsmedium dafür |
FI113903B (fi) | 1997-05-07 | 2004-06-30 | Nokia Corp | Puheen koodaus |
US6073092A (en) * | 1997-06-26 | 2000-06-06 | Telogy Networks, Inc. | Method for speech coding based on a code excited linear prediction (CELP) model |
JP3180786B2 (ja) | 1998-11-27 | 2001-06-25 | 日本電気株式会社 | 音声符号化方法及び音声符号化装置 |
-
1998
- 1998-11-27 JP JP33780598A patent/JP3180786B2/ja not_active Expired - Lifetime
-
1999
- 1999-11-25 CA CA002290859A patent/CA2290859C/en not_active Expired - Lifetime
- 1999-11-29 EP EP99123694A patent/EP1005022B1/de not_active Expired - Lifetime
- 1999-11-29 US US09/450,305 patent/US6581031B1/en not_active Expired - Lifetime
- 1999-11-29 DE DE69921066T patent/DE69921066T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2290859A1 (en) | 2000-05-27 |
DE69921066T2 (de) | 2005-11-10 |
US6581031B1 (en) | 2003-06-17 |
JP3180786B2 (ja) | 2001-06-25 |
JP2000163096A (ja) | 2000-06-16 |
CA2290859C (en) | 2005-01-11 |
EP1005022A1 (de) | 2000-05-31 |
EP1005022B1 (de) | 2004-10-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |