DE60226200T2 - Signaländerung mit Hilfe von kontinuierlicher Zeitverschiebung für CELP Kodierung mit niedriger Bitrate - Google Patents
Signaländerung mit Hilfe von kontinuierlicher Zeitverschiebung für CELP Kodierung mit niedriger Bitrate Download PDFInfo
- Publication number
- DE60226200T2 DE60226200T2 DE60226200T DE60226200T DE60226200T2 DE 60226200 T2 DE60226200 T2 DE 60226200T2 DE 60226200 T DE60226200 T DE 60226200T DE 60226200 T DE60226200 T DE 60226200T DE 60226200 T2 DE60226200 T2 DE 60226200T2
- Authority
- DE
- Germany
- Prior art keywords
- residual signal
- signal
- lag
- sample
- computer readable
- 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
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- 238000010420 art technique Methods 0.000 abstract 1
- 239000011295 pitch Substances 0.000 description 34
- 238000003786 synthesis reaction Methods 0.000 description 16
- 230000015572 biosynthetic process Effects 0.000 description 14
- 230000005284 excitation Effects 0.000 description 13
- 238000004891 communication Methods 0.000 description 10
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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
-
- 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
- G10L15/00—Speech recognition
- G10L15/08—Speech classification or search
- G10L15/12—Speech classification or search using dynamic programming techniques, e.g. dynamic time warping [DTW]
-
- 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
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)
- Compression Of Band Width Or Redundancy In Fax (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Communication Control (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US896272 | 2001-06-29 | ||
| US09/896,272 US6879955B2 (en) | 2001-06-29 | 2001-06-29 | Signal modification based on continuous time warping for low bit rate CELP coding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE60226200D1 DE60226200D1 (de) | 2008-06-05 |
| DE60226200T2 true DE60226200T2 (de) | 2009-05-14 |
Family
ID=25405930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE60226200T Expired - Lifetime DE60226200T2 (de) | 2001-06-29 | 2002-06-27 | Signaländerung mit Hilfe von kontinuierlicher Zeitverschiebung für CELP Kodierung mit niedriger Bitrate |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US6879955B2 (enExample) |
| EP (1) | EP1271471B1 (enExample) |
| JP (1) | JP4162933B2 (enExample) |
| AT (1) | ATE393447T1 (enExample) |
| DE (1) | DE60226200T2 (enExample) |
Families Citing this family (40)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7315815B1 (en) * | 1999-09-22 | 2008-01-01 | Microsoft Corporation | LPC-harmonic vocoder with superframe structure |
| US8605911B2 (en) | 2001-07-10 | 2013-12-10 | Dolby International Ab | Efficient and scalable parametric stereo coding for low bitrate audio coding applications |
| SE0202159D0 (sv) | 2001-07-10 | 2002-07-09 | Coding Technologies Sweden Ab | Efficientand scalable parametric stereo coding for low bitrate applications |
| ATE288617T1 (de) * | 2001-11-29 | 2005-02-15 | Coding Tech Ab | Wiederherstellung von hochfrequenzkomponenten |
| SE0202770D0 (sv) * | 2002-09-18 | 2002-09-18 | Coding Technologies Sweden Ab | Method for reduction of aliasing introduces by spectral envelope adjustment in real-valued filterbanks |
| US7394833B2 (en) * | 2003-02-11 | 2008-07-01 | Nokia Corporation | Method and apparatus for reducing synchronization delay in packet switched voice terminals using speech decoder modification |
| US7668712B2 (en) * | 2004-03-31 | 2010-02-23 | Microsoft Corporation | Audio encoding and decoding with intra frames and adaptive forward error correction |
| US7676362B2 (en) * | 2004-12-31 | 2010-03-09 | Motorola, Inc. | Method and apparatus for enhancing loudness of a speech signal |
| PL1869673T3 (pl) * | 2005-04-01 | 2011-03-31 | Qualcomm Inc | Sposoby i urządzenia do kodowania i dekodowania górnopasmowej części sygnału mowy |
| TR201821299T4 (tr) * | 2005-04-22 | 2019-01-21 | Qualcomm Inc | Kazanç faktörü yumuşatma için sistemler, yöntemler ve aparat. |
| US8280730B2 (en) | 2005-05-25 | 2012-10-02 | Motorola Mobility Llc | Method and apparatus of increasing speech intelligibility in noisy environments |
| US7831421B2 (en) * | 2005-05-31 | 2010-11-09 | Microsoft Corporation | Robust decoder |
| US7707034B2 (en) * | 2005-05-31 | 2010-04-27 | Microsoft Corporation | Audio codec post-filter |
| US7177804B2 (en) | 2005-05-31 | 2007-02-13 | Microsoft Corporation | Sub-band voice codec with multi-stage codebooks and redundant coding |
| US7720677B2 (en) | 2005-11-03 | 2010-05-18 | Coding Technologies Ab | Time warped modified transform coding of audio signals |
| US8682652B2 (en) * | 2006-06-30 | 2014-03-25 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic |
| US7987089B2 (en) * | 2006-07-31 | 2011-07-26 | Qualcomm Incorporated | Systems and methods for modifying a zero pad region of a windowed frame of an audio signal |
| US8532984B2 (en) * | 2006-07-31 | 2013-09-10 | Qualcomm Incorporated | Systems, methods, and apparatus for wideband encoding and decoding of active frames |
| US8725499B2 (en) * | 2006-07-31 | 2014-05-13 | Qualcomm Incorporated | Systems, methods, and apparatus for signal change detection |
| US8260609B2 (en) | 2006-07-31 | 2012-09-04 | Qualcomm Incorporated | Systems, methods, and apparatus for wideband encoding and decoding of inactive frames |
| JP4380669B2 (ja) * | 2006-08-07 | 2009-12-09 | カシオ計算機株式会社 | 音声符号化装置、音声復号装置、音声符号化方法、音声復号方法、及び、プログラム |
| US9653088B2 (en) * | 2007-06-13 | 2017-05-16 | Qualcomm Incorporated | Systems, methods, and apparatus for signal encoding using pitch-regularizing and non-pitch-regularizing coding |
| US8315856B2 (en) * | 2007-10-24 | 2012-11-20 | Red Shift Company, Llc | Identify features of speech based on events in a signal representing spoken sounds |
| DE602008005250D1 (de) | 2008-01-04 | 2011-04-14 | Dolby Sweden Ab | Audiokodierer und -dekodierer |
| EP2107556A1 (en) * | 2008-04-04 | 2009-10-07 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio transform coding using pitch correction |
| EP2410521B1 (en) * | 2008-07-11 | 2017-10-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio signal encoder, method for generating an audio signal and computer program |
| MY154452A (en) | 2008-07-11 | 2015-06-15 | Fraunhofer Ges Forschung | An apparatus and a method for decoding an encoded audio signal |
| US9082416B2 (en) * | 2010-09-16 | 2015-07-14 | Qualcomm Incorporated | Estimating a pitch lag |
| CA2827277C (en) | 2011-02-14 | 2016-08-30 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Linear prediction based coding scheme using spectral domain noise shaping |
| SG192718A1 (en) | 2011-02-14 | 2013-09-30 | Fraunhofer Ges Forschung | Audio codec using noise synthesis during inactive phases |
| PT2676267T (pt) | 2011-02-14 | 2017-09-26 | Fraunhofer Ges Forschung | Codificação e descodificação de posições de pulso de faixas de um sinal de áudio |
| ES2623291T3 (es) | 2011-02-14 | 2017-07-10 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Codificación de una porción de una señal de audio utilizando una detección de transitorios y un resultado de calidad |
| RU2580924C2 (ru) * | 2011-02-14 | 2016-04-10 | Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. | Представление информационного сигнала с использованием преобразования с перекрытием |
| WO2012110415A1 (en) | 2011-02-14 | 2012-08-23 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for processing a decoded audio signal in a spectral domain |
| MY159444A (en) | 2011-02-14 | 2017-01-13 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E V | Encoding and decoding of pulse positions of tracks of an audio signal |
| EP3503098B1 (en) | 2011-02-14 | 2023-08-30 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method decoding an audio signal using an aligned look-ahead portion |
| MX2013009301A (es) | 2011-02-14 | 2013-12-06 | Fraunhofer Ges Forschung | Aparato y metodo para ocultamiento de error en voz unificada con bajo retardo y codificacion de audio. |
| BR112015032013B1 (pt) * | 2013-06-21 | 2021-02-23 | Fraunhofer-Gesellschaft zur Förderung der Angewandten ForschungE.V. | Método e equipamento para a obtenção de coeficientes do espectropara um quadro de substituição de um sinal de áudio, descodificador de áudio,receptor de áudio e sistema para transmissão de sinais de áudio |
| US9985815B2 (en) * | 2016-08-25 | 2018-05-29 | Intel IP Corporation | Signal processing chain switching |
| CN112951209B (zh) * | 2021-01-27 | 2023-12-01 | 中国科学技术大学 | 一种语音识别方法、装置、设备及计算机可读存储介质 |
Family Cites Families (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4561102A (en) * | 1982-09-20 | 1985-12-24 | At&T Bell Laboratories | Pitch detector for speech analysis |
| NL8500843A (nl) * | 1985-03-22 | 1986-10-16 | Koninkl Philips Electronics Nv | Multipuls-excitatie lineair-predictieve spraakcoder. |
| JPS6295599A (ja) | 1985-10-23 | 1987-05-02 | 株式会社リコー | 残差駆動型音声合成方式 |
| JPS62189833A (ja) * | 1986-02-17 | 1987-08-19 | Hitachi Ltd | 音声符号化復号化装置 |
| CA1337217C (en) * | 1987-08-28 | 1995-10-03 | Daniel Kenneth Freeman | Speech coding |
| JPH0782359B2 (ja) * | 1989-04-21 | 1995-09-06 | 三菱電機株式会社 | 音声符号化装置、音声復号化装置及び音声符号化・復号化装置 |
| GB2235354A (en) * | 1989-08-16 | 1991-02-27 | Philips Electronic Associated | Speech coding/encoding using celp |
| JP3199142B2 (ja) | 1993-09-22 | 2001-08-13 | 日本電信電話株式会社 | 音声の励振信号符号化方法および装置 |
| JPH07160299A (ja) * | 1993-12-06 | 1995-06-23 | Hitachi Denshi Ltd | 音声信号帯域圧縮伸張装置並びに音声信号の帯域圧縮伝送方式及び再生方式 |
| US5781880A (en) * | 1994-11-21 | 1998-07-14 | Rockwell International Corporation | Pitch lag estimation using frequency-domain lowpass filtering of the linear predictive coding (LPC) residual |
| US5602959A (en) * | 1994-12-05 | 1997-02-11 | Motorola, Inc. | Method and apparatus for characterization and reconstruction of speech excitation waveforms |
| US5774846A (en) * | 1994-12-19 | 1998-06-30 | Matsushita Electric Industrial Co., Ltd. | Speech coding apparatus, linear prediction coefficient analyzing apparatus and noise reducing apparatus |
| US5648989A (en) * | 1994-12-21 | 1997-07-15 | Paradyne Corporation | Linear prediction filter coefficient quantizer and filter set |
| US5704003A (en) * | 1995-09-19 | 1997-12-30 | Lucent Technologies Inc. | RCELP coder |
| US6240384B1 (en) * | 1995-12-04 | 2001-05-29 | Kabushiki Kaisha Toshiba | Speech synthesis method |
| JP3531780B2 (ja) | 1996-11-15 | 2004-05-31 | 日本電信電話株式会社 | 音声符号化方法および復号化方法 |
| US5886276A (en) * | 1997-01-16 | 1999-03-23 | The Board Of Trustees Of The Leland Stanford Junior University | System and method for multiresolution scalable audio signal encoding |
| JP3296411B2 (ja) | 1997-02-21 | 2002-07-02 | 日本電信電話株式会社 | 音声符号化方法および復号化方法 |
| GB9718026D0 (en) * | 1997-08-27 | 1997-10-29 | Secr Defence | Multi-component signal detection system |
| US5963897A (en) * | 1998-02-27 | 1999-10-05 | Lernout & Hauspie Speech Products N.V. | Apparatus and method for hybrid excited linear prediction speech encoding |
| US6330533B2 (en) | 1998-08-24 | 2001-12-11 | Conexant Systems, Inc. | Speech encoder adaptively applying pitch preprocessing with warping of target signal |
| US6449590B1 (en) * | 1998-08-24 | 2002-09-10 | Conexant Systems, Inc. | Speech encoder using warping in long term preprocessing |
| US6113653A (en) * | 1998-09-11 | 2000-09-05 | Motorola, Inc. | Method and apparatus for coding an information signal using delay contour adjustment |
| 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 |
| US6311154B1 (en) | 1998-12-30 | 2001-10-30 | Nokia Mobile Phones Limited | Adaptive windows for analysis-by-synthesis CELP-type speech coding |
| US6223151B1 (en) * | 1999-02-10 | 2001-04-24 | Telefon Aktie Bolaget Lm Ericsson | Method and apparatus for pre-processing speech signals prior to coding by transform-based speech coders |
| US6732070B1 (en) * | 2000-02-16 | 2004-05-04 | Nokia Mobile Phones, Ltd. | Wideband speech codec using a higher sampling rate in analysis and synthesis filtering than in excitation searching |
-
2001
- 2001-06-29 US US09/896,272 patent/US6879955B2/en not_active Expired - Fee Related
-
2002
- 2002-06-26 JP JP2002186971A patent/JP4162933B2/ja not_active Expired - Fee Related
- 2002-06-27 AT AT02014365T patent/ATE393447T1/de not_active IP Right Cessation
- 2002-06-27 EP EP02014365A patent/EP1271471B1/en not_active Expired - Lifetime
- 2002-06-27 DE DE60226200T patent/DE60226200T2/de not_active Expired - Lifetime
-
2005
- 2005-01-10 US US11/032,595 patent/US7228272B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP1271471A2 (en) | 2003-01-02 |
| ATE393447T1 (de) | 2008-05-15 |
| JP2003122400A (ja) | 2003-04-25 |
| US6879955B2 (en) | 2005-04-12 |
| EP1271471B1 (en) | 2008-04-23 |
| EP1271471A3 (en) | 2004-01-28 |
| DE60226200D1 (de) | 2008-06-05 |
| US20050131681A1 (en) | 2005-06-16 |
| US7228272B2 (en) | 2007-06-05 |
| JP4162933B2 (ja) | 2008-10-08 |
| US20030004718A1 (en) | 2003-01-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition |