ES2177729T3 - Modificacion del retardo de pitch durante borrados de trampa. - Google Patents
Modificacion del retardo de pitch durante borrados de trampa.Info
- Publication number
- ES2177729T3 ES2177729T3 ES96303853T ES96303853T ES2177729T3 ES 2177729 T3 ES2177729 T3 ES 2177729T3 ES 96303853 T ES96303853 T ES 96303853T ES 96303853 T ES96303853 T ES 96303853T ES 2177729 T3 ES2177729 T3 ES 2177729T3
- Authority
- ES
- Spain
- Prior art keywords
- encrypted
- code
- voice
- framework
- amplifier
- 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 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
-
- 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
- G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Abstract
UN DECODIFICADOR DE VOZ BASADO EN UN CODIGO DE CIFRADO Y DESCIFRADO QUE FALLA PARA RECIBIR CON EXACTITUD AL MENOS UNA PARTE DE UN MARCO ACTUAL DE INFORMACION DE VOZ COMPRIMIDA UTILIZA UNA GANANCIA DEL CODIGO DE CIFRADO Y DESCIFRADO QUE ES UNA VERSION ATENUADA DE LA GANANCIA DE UN MARCO PREVIO DE VOZ. EL DECODIFICADOR DE VOZ INCLUYE UNA MEMORIA DE CODIGO DE CIFRADO Y DESCIFRADO Y UN AMPLIFICADOR DE SEÑAL. LA MEMORIA Y EL AMPLIFICADOR SON USADOS PARA GENERAR UNA SEÑAL DE VOZ DECODIFICADA SOBRE LA BASE DE LA INFORMACION DE VOZ COMPRIMIDA. LA INFORMACION DE VOZ COMPRIMIDA INCLUYE UN FACTOR DE ESCALA PARA SU USO POR EL AMPLIFICADOR EN LA ESCALACION DE UN VECTOR DE CODIGO DE CIFRADO Y DESCIFRADO. CUANDO SE PRODUCE EL BORRADO DE UN MARCO, SE ATENUA UN FACTOR DE ESCALA CORRESPONDIENTE A UN MARCO ANTERIOR DE VOZ Y EL FACTOR DE ESCALA ATENUADO SE UTILIZA PARA AMPLIFICAR EL VECTOR DEL CODIGO DE CIFRADO Y DESCIFRADO QUE CORRESPONDE AL MARCO ACTUAL BORRADO DE VOZ.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US48542095A | 1995-06-07 | 1995-06-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2177729T3 true ES2177729T3 (es) | 2002-12-16 |
Family
ID=23928093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES96303853T Expired - Lifetime ES2177729T3 (es) | 1995-06-07 | 1996-05-29 | Modificacion del retardo de pitch durante borrados de trampa. |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0747884B1 (es) |
| JP (1) | JPH09120297A (es) |
| KR (1) | KR970004469A (es) |
| AU (1) | AU5463796A (es) |
| CA (1) | CA2177413A1 (es) |
| DE (1) | DE69622646T2 (es) |
| ES (1) | ES2177729T3 (es) |
| MX (1) | MX9602144A (es) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI113571B (fi) | 1998-03-09 | 2004-05-14 | Nokia Corp | Puheenkoodaus |
| US6636829B1 (en) * | 1999-09-22 | 2003-10-21 | Mindspeed Technologies, Inc. | Speech communication system and method for handling lost frames |
| WO2001037522A1 (en) * | 1999-11-19 | 2001-05-25 | Siemens Information And Communication Mobile Llc | System and method for wireless communication incorporating error concealment |
| FR2813722B1 (fr) * | 2000-09-05 | 2003-01-24 | France Telecom | Procede et dispositif de dissimulation d'erreurs et systeme de transmission comportant un tel dispositif |
| JP2003044098A (ja) * | 2001-07-26 | 2003-02-14 | Nec Corp | 音声帯域拡張装置及び音声帯域拡張方法 |
| JP4419748B2 (ja) | 2004-08-12 | 2010-02-24 | 沖電気工業株式会社 | 消失補償装置、消失補償方法、および消失補償プログラム |
| CN101583995B (zh) | 2006-11-10 | 2012-06-27 | 松下电器产业株式会社 | 参数解码装置、参数编码装置以及参数解码方法 |
| RU2431892C2 (ru) * | 2006-11-10 | 2011-10-20 | Панасоник Корпорэйшн | Устройство декодирования параметров, устройство кодирования параметров и способ декодирования параметров |
| EP2233288A1 (en) | 2009-03-23 | 2010-09-29 | Founder Fine Chemical Industry Co., Ltd. | Radiation sensitive composition and method for preparing radiation sensitive composition |
| CN103988255B (zh) * | 2011-10-20 | 2016-03-02 | Lg电子株式会社 | 管理抖动缓存器的方法和使用其的抖动缓存器 |
| US9449607B2 (en) * | 2012-01-06 | 2016-09-20 | Qualcomm Incorporated | Systems and methods for detecting overflow |
| EP2980797A1 (en) | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio decoder, method and computer program using a zero-input-response to obtain a smooth transition |
| EP3320539A1 (en) * | 2015-07-06 | 2018-05-16 | Nokia Technologies OY | Bit error detector for an audio signal decoder |
| EP3427257B1 (en) | 2016-03-07 | 2021-05-05 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Error concealment unit, audio decoder, and related method and computer program fading out a concealed audio frame out according to different damping factors for different frequency bands |
| JP6883047B2 (ja) | 2016-03-07 | 2021-06-02 | フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー．ファオ | 適切に復号されたオーディオフレームの復号化表現の特性を使用する誤り隠蔽ユニット、オーディオデコーダ、および関連する方法およびコンピュータプログラム |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3102015B2 (ja) * | 1990-05-28 | 2000-10-23 | 日本電気株式会社 | 音声復号化方法 |
| US5383202A (en) * | 1992-11-25 | 1995-01-17 | Motorola, Inc. | Simplified method of attenuation of logarithmically coded digital signals |
| US5450449A (en) * | 1994-03-14 | 1995-09-12 | At&T Ipm Corp. | Linear prediction coefficient generation during frame erasure or packet loss |
-
1996
- 1996-05-27 CA CA002177413A patent/CA2177413A1/en not_active Abandoned
- 1996-05-29 ES ES96303853T patent/ES2177729T3/es not_active Expired - Lifetime
- 1996-05-29 DE DE69622646T patent/DE69622646T2/de not_active Expired - Fee Related
- 1996-05-29 EP EP96303853A patent/EP0747884B1/en not_active Expired - Lifetime
- 1996-05-31 AU AU54637/96A patent/AU5463796A/en not_active Abandoned
- 1996-06-04 MX MX9602144A patent/MX9602144A/es unknown
- 1996-06-05 KR KR1019960020165A patent/KR970004469A/ko not_active Withdrawn
- 1996-06-07 JP JP8182610A patent/JPH09120297A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CA2177413A1 (en) | 1996-12-08 |
| EP0747884B1 (en) | 2002-07-31 |
| KR970004469A (ko) | 1997-01-29 |
| DE69622646T2 (de) | 2003-03-13 |
| EP0747884A3 (en) | 1997-09-10 |
| JPH09120297A (ja) | 1997-05-06 |
| DE69622646D1 (de) | 2002-09-05 |
| EP0747884A2 (en) | 1996-12-11 |
| AU5463796A (en) | 1996-12-19 |
| MX9602144A (es) | 1997-09-30 |
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