ES2177631T3 - Prediccion lineal excitada mediante tren de impulsos. - Google Patents
Prediccion lineal excitada mediante tren de impulsos.Info
- Publication number
- ES2177631T3 ES2177631T3 ES95909433T ES95909433T ES2177631T3 ES 2177631 T3 ES2177631 T3 ES 2177631T3 ES 95909433 T ES95909433 T ES 95909433T ES 95909433 T ES95909433 T ES 95909433T ES 2177631 T3 ES2177631 T3 ES 2177631T3
- Authority
- ES
- Spain
- Prior art keywords
- gusts
- residual
- wave form
- parameters
- format
- 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
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 238000003786 synthesis reaction Methods 0.000 abstract 2
- 230000006978 adaptation Effects 0.000 abstract 1
- 230000009194 climbing Effects 0.000 abstract 1
- 230000004807 localization Effects 0.000 abstract 1
- 230000007774 longterm 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
- G10L2019/0001—Codebooks
- G10L2019/0013—Codebook search algorithms
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)
- Stereo-Broadcasting Methods (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Valve Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Radar Systems Or Details Thereof (AREA)
- Luminescent Compositions (AREA)
- Steroid Compounds (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Semiconductor Lasers (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Control Of Eletrric Generators (AREA)
- Amplifiers (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Pyrane Compounds (AREA)
Abstract
UN APARATO NUEVO Y MEJORADO PARA CODIFICAR UNA SEÑAL QUE ES ORIGINARIAMENTE DE RAFAGAS. EN UN ALGORITMO DE PREDICCION LINEAL EXCITADA DE CODIGO, LAS REDUNDANCIAS DE TERMINO CORTO SE ELIMINAN MEDIANTE UN FILTRO FORMANTE DE SINTESIS (6) Y LAS REDUNDANCIAS DE TERMINO LARGO SE ELIMINAN MEDIANTE UN FILTRO DE SINTESIS DE LINEAS (4) A PARTIR DE UNA MUESTRA DIGITALIZADA DE VOZ Y LA SEÑAL RESIDUAL QUE ES DE RAFAGAS EN ORIGEN PUEDE SER CODIFICADA. LA SEÑAL RESIDUAL SE CODIFICA USANDO TRES PARAMETROS UN INDICE DE FORMATO DE RAFAGAS CORRESPONDIENTE A UN FORMATO DE RAFAGAS PROPORCIONADO POR UN ELEMENTO DE RAFAGAS (10), UNA GANANCIA DE RAFAGAS QUE ESCALA EL FORMATO DE RAFAGAS A TRAVES DE UNA MULTIPLICACION ESCALAR EN EL MULTIPLICADOR (14) Y UN VALOR DE LOCALIZACION DE RAFAGAS DEL ESCALADO QUE DETERMINA LA SITUACION TEMPORAL DE LA RAFAGA ESCALADA EN EL ELEMENTO DE RETARDO VARIABLE (16). JUNTOS LOS TRES PARAMETROS ESPECIFICAN UNA FORMA DE ONDA QUE SE ADAPTA A LA FORMA DE ONDA RESIDUAL. TAMBIEN SE PRESENTAUN METODO DE BUSQUEDA EXHAUSTIVA DE BUCLE MEDIANTE EL QUE SE ENCUENTRE LA MEJOR FORMA DE CONTRARRESTAR LA FORMA DE ONDA RESIDUAL, Y UN METODO DE BUCLE ABIERTO PARCIALMENTE EN DONDE LA LOCALIZACION DE LA RAFAGA ESTA DETERMINADA POR UN ANALISIS DE BUCLE ABIERTO DE LA ONDA RESIDUAL Y LA FORMA DE LA RAFAGA Y LOS PARAMETROS DE GANANCIA ESTAN DETERMINADOS EN UN MODO DE BUCLE CERRADO. LAS OPERACIONES DE ADAPTACION SE REALIZAN POR MINIMIZACION DEL ERROR CUADRADO DEL ELEMENTO (MSE) USANDO UN ELEMENTO SUMATORIO (18), UN ELEMENTO DE COMPUTACION DE ENERGIA (20) Y UN ELEMENTO DE MINIMIZACION (22).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18981494A | 1994-02-01 | 1994-02-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2177631T3 true ES2177631T3 (es) | 2002-12-16 |
Family
ID=22698876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES95909433T Expired - Lifetime ES2177631T3 (es) | 1994-02-01 | 1995-02-01 | Prediccion lineal excitada mediante tren de impulsos. |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US5621853A (es) |
| EP (1) | EP0744069B1 (es) |
| JP (1) | JPH09508479A (es) |
| KR (1) | KR100323487B1 (es) |
| CN (1) | CN1139988A (es) |
| AT (1) | ATE218741T1 (es) |
| AU (1) | AU693519B2 (es) |
| BR (1) | BR9506574A (es) |
| CA (1) | CA2181456A1 (es) |
| DE (1) | DE69526926T2 (es) |
| DK (1) | DK0744069T3 (es) |
| ES (1) | ES2177631T3 (es) |
| FI (1) | FI962968A7 (es) |
| MX (1) | MX9603122A (es) |
| PT (1) | PT744069E (es) |
| WO (1) | WO1995021443A1 (es) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5963897A (en) * | 1998-02-27 | 1999-10-05 | Lernout & Hauspie Speech Products N.V. | Apparatus and method for hybrid excited linear prediction speech encoding |
| US6182030B1 (en) | 1998-12-18 | 2001-01-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Enhanced coding to improve coded communication signals |
| EP1690251B1 (en) * | 2003-12-02 | 2015-08-26 | Thomson Licensing | Method for coding and decoding impulse responses of audio signals |
| US8920343B2 (en) | 2006-03-23 | 2014-12-30 | Michael Edward Sabatino | Apparatus for acquiring and processing of physiological auditory signals |
| US9245529B2 (en) | 2009-06-18 | 2016-01-26 | Texas Instruments Incorporated | Adaptive encoding of a digital signal with one or more missing values |
| BR112013021164B1 (pt) * | 2011-03-04 | 2021-02-17 | Telefonaktiebolaget L M Ericsson (Publ) | método e aparelho de ajuste de ganho na decodificação de áudio que foi codificado com representações de formato e ganho separadas, decodificador e nó de rede |
| MY177559A (en) * | 2013-06-21 | 2020-09-18 | Fraunhofer Ges Forschung | Apparatus and method for improved concealment of the adaptive codebook in acelp-like concealment employing improved pitch lag estimation |
| CN110931025B (zh) * | 2013-06-21 | 2024-06-28 | 弗朗霍夫应用科学研究促进协会 | 利用改进的脉冲再同步化的似acelp隐藏中的自适应码本的改进隐藏的装置及方法 |
| EP3079151A1 (en) * | 2015-04-09 | 2016-10-12 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoder and method for encoding an audio signal |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4191853A (en) * | 1978-10-10 | 1980-03-04 | Motorola Inc. | Sampled data filter with time shared weighters for use as an LPC and synthesizer |
| US4675863A (en) * | 1985-03-20 | 1987-06-23 | International Mobile Machines Corp. | Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
| JP3102015B2 (ja) * | 1990-05-28 | 2000-10-23 | 日本電気株式会社 | 音声復号化方法 |
| US5138661A (en) * | 1990-11-13 | 1992-08-11 | General Electric Company | Linear predictive codeword excited speech synthesizer |
| US5233660A (en) * | 1991-09-10 | 1993-08-03 | At&T Bell Laboratories | Method and apparatus for low-delay celp speech coding and decoding |
| SE469764B (sv) * | 1992-01-27 | 1993-09-06 | Ericsson Telefon Ab L M | Saett att koda en samplad talsignalvektor |
| US5495555A (en) * | 1992-06-01 | 1996-02-27 | Hughes Aircraft Company | High quality low bit rate celp-based speech codec |
| US5353374A (en) * | 1992-10-19 | 1994-10-04 | Loral Aerospace Corporation | Low bit rate voice transmission for use in a noisy environment |
| US5341456A (en) * | 1992-12-02 | 1994-08-23 | Qualcomm Incorporated | Method for determining speech encoding rate in a variable rate vocoder |
-
1995
- 1995-02-01 MX MX9603122A patent/MX9603122A/es unknown
- 1995-02-01 CN CN95191398A patent/CN1139988A/zh active Pending
- 1995-02-01 BR BR9506574A patent/BR9506574A/pt not_active Application Discontinuation
- 1995-02-01 KR KR1019960704137A patent/KR100323487B1/ko not_active Expired - Lifetime
- 1995-02-01 JP JP7520734A patent/JPH09508479A/ja active Pending
- 1995-02-01 ES ES95909433T patent/ES2177631T3/es not_active Expired - Lifetime
- 1995-02-01 WO PCT/US1995/001341 patent/WO1995021443A1/en not_active Ceased
- 1995-02-01 PT PT95909433T patent/PT744069E/pt unknown
- 1995-02-01 DK DK95909433T patent/DK0744069T3/da active
- 1995-02-01 AU AU17398/95A patent/AU693519B2/en not_active Ceased
- 1995-02-01 DE DE69526926T patent/DE69526926T2/de not_active Expired - Lifetime
- 1995-02-01 EP EP95909433A patent/EP0744069B1/en not_active Expired - Lifetime
- 1995-02-01 CA CA002181456A patent/CA2181456A1/en not_active Abandoned
- 1995-02-01 AT AT95909433T patent/ATE218741T1/de not_active IP Right Cessation
- 1995-09-18 US US08/529,374 patent/US5621853A/en not_active Expired - Lifetime
-
1996
- 1996-07-25 FI FI962968A patent/FI962968A7/fi unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US5621853A (en) | 1997-04-15 |
| CA2181456A1 (en) | 1995-08-10 |
| DE69526926T2 (de) | 2003-01-02 |
| CN1139988A (zh) | 1997-01-08 |
| AU693519B2 (en) | 1998-07-02 |
| JPH09508479A (ja) | 1997-08-26 |
| MX9603122A (es) | 1997-03-29 |
| WO1995021443A1 (en) | 1995-08-10 |
| EP0744069B1 (en) | 2002-06-05 |
| PT744069E (pt) | 2002-10-31 |
| BR9506574A (pt) | 1997-09-23 |
| AU1739895A (en) | 1995-08-21 |
| DE69526926D1 (de) | 2002-07-11 |
| ATE218741T1 (de) | 2002-06-15 |
| HK1011108A1 (en) | 1999-07-02 |
| KR970700902A (ko) | 1997-02-12 |
| EP0744069A1 (en) | 1996-11-27 |
| KR100323487B1 (ko) | 2002-07-08 |
| FI962968A7 (fi) | 1996-09-24 |
| FI962968A0 (fi) | 1996-07-25 |
| DK0744069T3 (da) | 2002-10-07 |
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