ES2176947T3 - Compresion de audio. - Google Patents
Compresion de audio.Info
- Publication number
- ES2176947T3 ES2176947T3 ES98901385T ES98901385T ES2176947T3 ES 2176947 T3 ES2176947 T3 ES 2176947T3 ES 98901385 T ES98901385 T ES 98901385T ES 98901385 T ES98901385 T ES 98901385T ES 2176947 T3 ES2176947 T3 ES 2176947T3
- Authority
- ES
- Spain
- Prior art keywords
- signal
- auxiliary data
- decodification
- recodification
- processes
- 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
- G10L19/16—Vocoder architecture
- G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
- H04B1/665—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using psychoacoustic properties of the ear, e.g. masking effect
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/02—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information
- H04H60/04—Studio equipment; Interconnection of studios
Abstract
SE DERIVA UNA SEÑAL AUXILIAR DE DATOS A PARTIR DE UNA SEÑAL DE COMPRESION DE AUDIO CODIFICADA RECIBIDA DURANTE LA DESCODIFICACION DE LA SEÑAL Y SE COMUNICA CON LA SEÑAL DE AUDIO DESCODIFICADA PARA SU USO EN LA RECODIFICACION DE LA SEÑAL. LA SEÑAL AUXILIAR DE DATOS SE PUEDE COMUNICAR INTEGRAMENTE CON LA SEÑAL DE AUDIO, POR EJEMPLO, EN LOS BITS MENOS SIGNIFICATIVOS O PUEDE SEGUIR UNA TRAYECTORIA DISTINTA. LA PROVISION DE LA SEÑAL DE DATOS AUXILIARES PUEDE PERMITIR PROCESOS DE DESCODIFICACION Y RECODIFICACION MAS TRANSPARENTES PERMITIENDO QUE LA DECISION DE CODIFICAR COINCIDA CON LAS DECISIONES DE CODIFICAR EMPLEADAS ORIGINARIAMENTE. ESTO PUEDE ALIVIAR LOS PROBLEMAS SOBRE LA REDUCCION DE LA CALIDAD QUE SURGEN DE LOS PROCESOS DE DESCODIFICACION Y RECODIFICIACION EN CASCADA.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9701616A GB2321577B (en) | 1997-01-27 | 1997-01-27 | Audio compression |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2176947T3 true ES2176947T3 (es) | 2002-12-01 |
Family
ID=10806629
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES98901385T Expired - Lifetime ES2176947T3 (es) | 1997-01-27 | 1998-01-27 | Compresion de audio. |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0958664B1 (es) |
JP (1) | JP2001508968A (es) |
AU (1) | AU740334B2 (es) |
CA (1) | CA2278576A1 (es) |
DE (1) | DE69806227T2 (es) |
ES (1) | ES2176947T3 (es) |
GB (1) | GB2321577B (es) |
WO (1) | WO1998033284A2 (es) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2340351B (en) * | 1998-07-29 | 2004-06-09 | British Broadcasting Corp | Data transmission |
GB2344728B (en) * | 1998-09-23 | 2004-03-17 | British Broadcasting Corp | Audio compression |
JP4639441B2 (ja) * | 1999-09-01 | 2011-02-23 | ソニー株式会社 | ディジタル信号処理装置および処理方法、並びにディジタル信号記録装置および記録方法 |
FR2802329B1 (fr) * | 1999-12-08 | 2003-03-28 | France Telecom | Procede de traitement d'au moins un flux binaire audio code organise sous la forme de trames |
GB0003954D0 (en) * | 2000-02-18 | 2000-04-12 | Radioscape Ltd | Method of and apparatus for converting a signal between data compression formats |
JP3487250B2 (ja) * | 2000-02-28 | 2004-01-13 | 日本電気株式会社 | 符号化音声信号形式変換装置 |
JP2002014697A (ja) * | 2000-06-30 | 2002-01-18 | Hitachi Ltd | ディジタルオーディオ装置 |
JP3580251B2 (ja) | 2000-12-27 | 2004-10-20 | 日本電気株式会社 | データ圧縮装置及び圧縮方法並びにその制御プログラムを記録した記録媒体 |
KR20070020188A (ko) * | 2003-10-17 | 2007-02-20 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 신호 인코딩 |
US9626975B2 (en) | 2011-06-24 | 2017-04-18 | Koninklijke Philips N.V. | Audio signal processor for processing encoded multi-channel audio signals and method therefor |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5185800A (en) * | 1989-10-13 | 1993-02-09 | Centre National D'etudes Des Telecommunications | Bit allocation device for transformed digital audio broadcasting signals with adaptive quantization based on psychoauditive criterion |
FR2653280B1 (fr) * | 1989-10-13 | 1992-01-10 | France Etat | Dispositif d'allocation de bits pour signal audio-numerique transforme, a quantification adaptative sur critere psycho-auditif. |
DE69427212T2 (de) * | 1993-07-30 | 2001-11-15 | Texas Instruments Inc | Modulare Audiodaten-Verarbeitungsarchitektur |
US5451954A (en) * | 1993-08-04 | 1995-09-19 | Dolby Laboratories Licensing Corporation | Quantization noise suppression for encoder/decoder system |
US5570363A (en) * | 1994-09-30 | 1996-10-29 | Intel Corporation | Transform based scalable audio compression algorithms and low cost audio multi-point conferencing systems |
-
1997
- 1997-01-27 GB GB9701616A patent/GB2321577B/en not_active Revoked
-
1998
- 1998-01-27 ES ES98901385T patent/ES2176947T3/es not_active Expired - Lifetime
- 1998-01-27 JP JP53174598A patent/JP2001508968A/ja not_active Ceased
- 1998-01-27 DE DE69806227T patent/DE69806227T2/de not_active Expired - Lifetime
- 1998-01-27 WO PCT/GB1998/000226 patent/WO1998033284A2/en active IP Right Grant
- 1998-01-27 EP EP98901385A patent/EP0958664B1/en not_active Expired - Lifetime
- 1998-01-27 CA CA002278576A patent/CA2278576A1/en not_active Abandoned
- 1998-01-27 AU AU57723/98A patent/AU740334B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
GB2321577A (en) | 1998-07-29 |
GB9701616D0 (en) | 1997-03-19 |
DE69806227T2 (de) | 2003-02-27 |
EP0958664A2 (en) | 1999-11-24 |
AU5772398A (en) | 1998-08-18 |
AU740334B2 (en) | 2001-11-01 |
WO1998033284A3 (en) | 1999-01-14 |
WO1998033284A2 (en) | 1998-07-30 |
EP0958664B1 (en) | 2002-06-26 |
DE69806227D1 (de) | 2002-08-01 |
GB2321577B (en) | 2001-08-01 |
JP2001508968A (ja) | 2001-07-03 |
CA2278576A1 (en) | 1998-07-30 |
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