ATE502377T1 - Kodierung digitaler audiosignale - Google Patents
Kodierung digitaler audiosignaleInfo
- Publication number
- ATE502377T1 ATE502377T1 AT08805994T AT08805994T ATE502377T1 AT E502377 T1 ATE502377 T1 AT E502377T1 AT 08805994 T AT08805994 T AT 08805994T AT 08805994 T AT08805994 T AT 08805994T AT E502377 T1 ATE502377 T1 AT E502377T1
- Authority
- AT
- Austria
- Prior art keywords
- quantification
- module
- signal
- indexes
- encoder
- Prior art date
Links
- 238000011002 quantification Methods 0.000 abstract 9
- 238000001914 filtration Methods 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 2
- 230000005236 sound signal Effects 0.000 abstract 2
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
- H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
-
- 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
- G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/032—Quantisation or dequantisation of spectral components
-
- 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
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
- G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
-
- 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
- G10L19/26—Pre-filtering or post-filtering
- G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- Acoustics & Sound (AREA)
- Computational Linguistics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computer Networks & Wireless Communication (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Circuit For Audible Band Transducer (AREA)
- Dental Preparations (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0755792 | 2007-06-15 | ||
| PCT/FR2008/051059 WO2009004227A1 (fr) | 2007-06-15 | 2008-06-13 | Codage de signaux audionumériques |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE502377T1 true ATE502377T1 (de) | 2011-04-15 |
Family
ID=38577930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT08805994T ATE502377T1 (de) | 2007-06-15 | 2008-06-13 | Kodierung digitaler audiosignale |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US8719012B2 (de) |
| EP (1) | EP2171713B1 (de) |
| JP (1) | JP5451603B2 (de) |
| AT (1) | ATE502377T1 (de) |
| BR (1) | BRPI0813178B1 (de) |
| DE (1) | DE602008005593D1 (de) |
| ES (1) | ES2363190T3 (de) |
| PL (1) | PL2171713T3 (de) |
| WO (1) | WO2009004227A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2938688A1 (fr) * | 2008-11-18 | 2010-05-21 | France Telecom | Codage avec mise en forme du bruit dans un codeur hierarchique |
| FR2969360A1 (fr) * | 2010-12-16 | 2012-06-22 | France Telecom | Codage perfectionne d'un etage d'amelioration dans un codeur hierarchique |
| EP3859734B1 (de) | 2014-05-01 | 2022-01-26 | Nippon Telegraph And Telephone Corporation | Tonsignaldecodierungsvorrichtung, tonsignaldecodierungsverfahren, programm und aufzeichnungsmedium |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0331405B1 (de) * | 1988-02-29 | 1996-11-27 | Sony Corporation | Verfahren und Einrichtung zur Digitalsignalverarbeitung |
| JP2551147B2 (ja) * | 1989-05-19 | 1996-11-06 | 国際電信電話株式会社 | 音声符号化方式 |
| JPH03181232A (ja) * | 1989-12-11 | 1991-08-07 | Toshiba Corp | 可変レート符号化方式 |
| JPH0472909A (ja) * | 1990-07-13 | 1992-03-06 | Sony Corp | オーディオ信号の量子化誤差低減装置 |
| CA2126810C (en) * | 1993-06-29 | 2004-10-19 | Gen Ichimura | Audio signal transmitting apparatus and the method thereof |
| US5651090A (en) * | 1994-05-06 | 1997-07-22 | Nippon Telegraph And Telephone Corporation | Coding method and coder for coding input signals of plural channels using vector quantization, and decoding method and decoder therefor |
| US5956674A (en) * | 1995-12-01 | 1999-09-21 | Digital Theater Systems, Inc. | Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels |
| US6496798B1 (en) * | 1999-09-30 | 2002-12-17 | Motorola, Inc. | Method and apparatus for encoding and decoding frames of voice model parameters into a low bit rate digital voice message |
| JP3559488B2 (ja) * | 2000-02-16 | 2004-09-02 | 日本電信電話株式会社 | 音響信号の階層符号化方法及び復号化方法 |
| US6584438B1 (en) * | 2000-04-24 | 2003-06-24 | Qualcomm Incorporated | Frame erasure compensation method in a variable rate speech coder |
| FR2859566B1 (fr) * | 2003-09-05 | 2010-11-05 | Eads Telecom | Procede de transmission d'un flux d'information par insertion a l'interieur d'un flux de donnees de parole, et codec parametrique pour sa mise en oeuvre |
| US7930176B2 (en) * | 2005-05-20 | 2011-04-19 | Broadcom Corporation | Packet loss concealment for block-independent speech codecs |
| PT2165328T (pt) * | 2007-06-11 | 2018-04-24 | Fraunhofer Ges Forschung | Codificação e descodificação de um sinal de áudio tendo uma parte do tipo impulso e uma parte estacionária |
-
2008
- 2008-06-13 BR BRPI0813178-3A patent/BRPI0813178B1/pt active IP Right Grant
- 2008-06-13 AT AT08805994T patent/ATE502377T1/de not_active IP Right Cessation
- 2008-06-13 EP EP08805994A patent/EP2171713B1/de active Active
- 2008-06-13 JP JP2010511709A patent/JP5451603B2/ja active Active
- 2008-06-13 PL PL08805994T patent/PL2171713T3/pl unknown
- 2008-06-13 ES ES08805994T patent/ES2363190T3/es active Active
- 2008-06-13 WO PCT/FR2008/051059 patent/WO2009004227A1/fr active Application Filing
- 2008-06-13 DE DE602008005593T patent/DE602008005593D1/de active Active
- 2008-06-13 US US12/602,809 patent/US8719012B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2010532489A (ja) | 2010-10-07 |
| WO2009004227A1 (fr) | 2009-01-08 |
| DE602008005593D1 (de) | 2011-04-28 |
| EP2171713A1 (de) | 2010-04-07 |
| PL2171713T3 (pl) | 2011-08-31 |
| EP2171713B1 (de) | 2011-03-16 |
| BRPI0813178A2 (pt) | 2014-12-23 |
| JP5451603B2 (ja) | 2014-03-26 |
| US20100145712A1 (en) | 2010-06-10 |
| ES2363190T3 (es) | 2011-07-26 |
| BRPI0813178B1 (pt) | 2020-05-12 |
| US8719012B2 (en) | 2014-05-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ATE500588T1 (de) | Audiokodierer und -dekodierer | |
| TW200746831A (en) | Adaptive encoder-assisted frame rate up conversion | |
| BRPI0608945B8 (pt) | codificador de áudio de multi-canal, decodificador de áudio de multi-canal, método de codificar n sinais de áudio em m sinais de áudio e dados paramétricos associados, método de decodificar k sinais de áudio e dados paramétricos associados, método de transmitir e receber um sinal de áudio de multi-canal codificado, mídia de armazenamento legível por computador, e, sistema de transmissão | |
| WO2007010158A3 (fr) | Procede de commutation de debit en decodage audio scalable en debit et largeur de bande | |
| WO2008038238A3 (en) | Adaptive interpolation filters for video coding | |
| NO20074829L (no) | Naer transparent eller transparent flerkanalsystem for koding/dekoding | |
| MXPA05008095A (es) | Formacion escalonada de modo robusto con multiples retrasos para senales de resolucion multiple. | |
| MX2011011399A (es) | Aparato para suministrar uno o más parámetros ajustados para un suministro de una representación de señal de mezcla ascendente sobre la base de una representación de señal de mezcla descendete, decodificador de señal de audio, transcodificador de señal de audio, codificador de señal de audio, flujo de bits de audio, método y programa de computación que utiliza información paramétrica relacionada con el objeto. | |
| TW200723887A (en) | Method and apparatus for weighted prediction for scalable video coding | |
| TW200746839A (en) | Apparatus and method of enhanced frame interpolation in video compression | |
| MY185091A (en) | Method of quantizing linear predictive coding coefficients, sound encoding method, method of de-quantizing linear predictive coding coefficients, sound decoding method, and recording medium | |
| WO2012093320A3 (en) | Video coding and decoding devices and methods preserving ppg relevant information | |
| WO2007099244A3 (fr) | Procede de limitation de gain d'excitation adaptative dans un decodeur audio | |
| MY183707A (en) | Selective post filter | |
| MY178342A (en) | Coding of audio scenes | |
| ATE537537T1 (de) | Signalkomprimierungsverfahren und -vorrichtung | |
| TW200611242A (en) | Coding reverberant sound signals | |
| WO2011013983A3 (en) | A method and an apparatus for processing an audio signal | |
| ATE442646T1 (de) | Optimiertes mehrfach-codierungsverfahren | |
| WO2010008175A3 (ko) | 음성/오디오 통합 신호의 부호화/복호화 장치 | |
| ATE531038T1 (de) | Nachbearbeitung zur reduzierung des quantifizierungsrauschens eines codierers während der decodierung | |
| ATE218260T1 (de) | Vorrichtung und verfahren zur videosignalkodierung | |
| MY180912A (en) | Noise filling without side information for celp-like coders | |
| ATE502377T1 (de) | Kodierung digitaler audiosignale | |
| ATE538369T1 (de) | Audiokodierungsverfahren sowie entsprechendes audiokodierungsgerät, kodierten signal und computerprogramme dafür |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |