ES2119932T3 - Formateo de señal codificada para codificador y descodificador de sistema de audio de alta calidad. - Google Patents
Formateo de señal codificada para codificador y descodificador de sistema de audio de alta calidad.Info
- Publication number
- ES2119932T3 ES2119932T3 ES94107838T ES94107838T ES2119932T3 ES 2119932 T3 ES2119932 T3 ES 2119932T3 ES 94107838 T ES94107838 T ES 94107838T ES 94107838 T ES94107838 T ES 94107838T ES 2119932 T3 ES2119932 T3 ES 2119932T3
- Authority
- ES
- Spain
- Prior art keywords
- length values
- fixed
- variable
- bits
- numbers
- 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
- 239000000284 extract Substances 0.000 abstract 2
- 230000003044 adaptive effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
-
- 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
- G10L19/0212—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 using orthogonal transformation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T9/00—Image coding
- G06T9/005—Statistical coding, e.g. Huffman, run length coding
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Acoustics & Sound (AREA)
- Theoretical Computer Science (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Computational Linguistics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Analogue/Digital Conversion (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Error Detection And Correction (AREA)
Abstract
UN CODIFICADOR APLICA UN BANCO DE FILTROS DIGITALES TALES COMO UN BANCO DE FILTROS DE TRANSFORMACION O DE SUBBANDA A UNA SEÑAL DE ENTRADA PARA GENERAR UNA INFORMACION DE SUBBANDA DE FRECUENCIA, CODIFICA LA INFORMACION DE LA SUBBANDA RESULTANTE USANDO UNA UBICACION ADAPTATIVA DE BITS PARA GENERAR VALORES DE LONGITUD FIJA REPRESENTADOS POR NUMEROS FIJOS DE BITS Y VALORES DE LONGITUD VARIABLE REPRESENTADOS POR NUMEROS VARIABLES DE BITS, Y FORMATEA LA INFORMACION DE LA SUBBANDA EN UNA SEÑAL CODIFICADA EN LA CUAL LOS VALORES DE LONGITUD FIJA SE ENSAMBLA EN POSICIONES PREESTABLECIDAS DENTRO DE LA SEÑAL CODIFICADA. EN RESPUESTA A UNA SEÑAL CODIFICADA QUE INCLUYA INFORMACION DE SUBBANDA REPRESENTADA POR VALORES DE LONGITUD FIJA Y VALORES DE LONGITUD VARIABLE, UN DESCODIFICADOR EXTRAE LOS VALORES DE LONGITUD FIJA REPRESENTADOS POR NUMEROS FIJOS DE BITS DE LAS POSICIONES PREESTABLECIDAS DENTRO DE LA SEÑAL CODIFICADA, EXTRAE LOS VALORES DE LONGITUD VARIABLE REPRESENTADOS POR NUMEROS VARIABLES DE BITSSE ESTABLECEN EN RESPUESTA CON LOS VALORES DE LONGITUD FIJA, Y GENERA UNA SEÑAL DE SALIDA APLICANDO UN BANCO DE FILTRADO INVERSO A LA INFORMACION DE SUBBANDA EXTRAIDA.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US30371489A | 1989-01-27 | 1989-01-27 | |
US43986889A | 1989-11-20 | 1989-11-20 | |
US07/458,894 US5109417A (en) | 1989-01-27 | 1989-12-29 | Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2119932T3 true ES2119932T3 (es) | 1998-10-16 |
Family
ID=27404960
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES94107838T Expired - Lifetime ES2119932T3 (es) | 1989-01-27 | 1990-01-29 | Formateo de señal codificada para codificador y descodificador de sistema de audio de alta calidad. |
ES90903695T Expired - Lifetime ES2065524T3 (es) | 1989-01-27 | 1990-01-29 | Codificador, descodificador, y codificador/descodificador de transformacion con tiempo de retardo corto para alta calidad de audio. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES90903695T Expired - Lifetime ES2065524T3 (es) | 1989-01-27 | 1990-01-29 | Codificador, descodificador, y codificador/descodificador de transformacion con tiempo de retardo corto para alta calidad de audio. |
Country Status (12)
Country | Link |
---|---|
EP (2) | EP0610975B1 (es) |
JP (2) | JP2811369B2 (es) |
KR (4) | KR100220862B1 (es) |
AT (2) | ATE170682T1 (es) |
AU (1) | AU643677B2 (es) |
BR (1) | BR9007062A (es) |
CA (5) | CA2140678C (es) |
DE (2) | DE69032624T2 (es) |
DK (2) | DK0610975T3 (es) |
ES (2) | ES2119932T3 (es) |
SG (1) | SG82549A1 (es) |
WO (1) | WO1990009064A1 (es) |
Families Citing this family (72)
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ZA921988B (en) * | 1991-03-29 | 1993-02-24 | Sony Corp | High efficiency digital data encoding and decoding apparatus |
GB2257606B (en) * | 1991-06-28 | 1995-01-18 | Sony Corp | Recording and/or reproducing apparatuses and signal processing methods for compressed data |
DE4212339A1 (de) * | 1991-08-12 | 1993-02-18 | Standard Elektrik Lorenz Ag | Codierverfahren fuer audiosignale mit 32 kbit/s |
EP0535889B1 (en) * | 1991-09-30 | 1998-11-11 | Sony Corporation | Method and apparatus for audio data compression |
US5369724A (en) * | 1992-01-17 | 1994-11-29 | Massachusetts Institute Of Technology | Method and apparatus for encoding, decoding and compression of audio-type data using reference coefficients located within a band of coefficients |
US5274708A (en) * | 1992-06-01 | 1993-12-28 | Fusan Labs, Inc. | Digital stereo sound enhancement unit and method |
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DE4236989C2 (de) * | 1992-11-02 | 1994-11-17 | Fraunhofer Ges Forschung | Verfahren zur Übertragung und/oder Speicherung digitaler Signale mehrerer Kanäle |
US5517511A (en) * | 1992-11-30 | 1996-05-14 | Digital Voice Systems, Inc. | Digital transmission of acoustic signals over a noisy communication channel |
JP3186292B2 (ja) * | 1993-02-02 | 2001-07-11 | ソニー株式会社 | 高能率符号化方法及び装置 |
JP3186307B2 (ja) * | 1993-03-09 | 2001-07-11 | ソニー株式会社 | 圧縮データ記録装置及び方法 |
JP3123290B2 (ja) * | 1993-03-09 | 2001-01-09 | ソニー株式会社 | 圧縮データ記録装置及び方法、圧縮データ再生方法、記録媒体 |
DE4316297C1 (de) * | 1993-05-14 | 1994-04-07 | Fraunhofer Ges Forschung | Frequenzanalyseverfahren |
US5581654A (en) * | 1993-05-25 | 1996-12-03 | Sony Corporation | Method and apparatus for information encoding and decoding |
US5632003A (en) * | 1993-07-16 | 1997-05-20 | Dolby Laboratories Licensing Corporation | Computationally efficient adaptive bit allocation for coding method and apparatus |
DE69428435T2 (de) * | 1993-11-04 | 2002-07-11 | Sony Corp., Tokio/Tokyo | Signalkodierer, signaldekodierer, aufzeichnungsträger und signalkodiererverfahren |
JP3131542B2 (ja) * | 1993-11-25 | 2001-02-05 | シャープ株式会社 | 符号化復号化装置 |
US5608713A (en) * | 1994-02-09 | 1997-03-04 | Sony Corporation | Bit allocation of digital audio signal blocks by non-linear processing |
JP3186412B2 (ja) * | 1994-04-01 | 2001-07-11 | ソニー株式会社 | 情報符号化方法、情報復号化方法、及び情報伝送方法 |
JP3277699B2 (ja) * | 1994-06-13 | 2002-04-22 | ソニー株式会社 | 信号符号化方法及び装置並びに信号復号化方法及び装置 |
JP3277705B2 (ja) | 1994-07-27 | 2002-04-22 | ソニー株式会社 | 情報符号化装置及び方法、並びに情報復号化装置及び方法 |
JP3341474B2 (ja) * | 1994-07-28 | 2002-11-05 | ソニー株式会社 | 情報符号化方法及び復号化方法、情報符号化装置及び復号化装置、並びに情報記録媒体 |
JP3557674B2 (ja) * | 1994-12-15 | 2004-08-25 | ソニー株式会社 | 高能率符号化方法及び装置 |
JPH08190764A (ja) * | 1995-01-05 | 1996-07-23 | Sony Corp | ディジタル信号処理方法、ディジタル信号処理装置及び記録媒体 |
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ATE220831T1 (de) * | 1996-03-19 | 2002-08-15 | Dolby Lab Licensing Corp | Analyse/synthese-filtersystem mit effizienter mit ungerade gestapelter einseitenband-filterbank unter verwendung der tdac-technik |
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KR100880642B1 (ko) | 2005-08-30 | 2009-01-30 | 엘지전자 주식회사 | 오디오 신호의 디코딩 방법 및 장치 |
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CN110657864B (zh) * | 2019-10-08 | 2020-12-18 | 三门核电有限公司 | 一种传感器响应时间测量方法 |
CN114416015A (zh) * | 2022-01-07 | 2022-04-29 | 北京小米移动软件有限公司 | 音频调节方法、装置、电子设备及可读存储介质 |
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GB8326719D0 (en) * | 1983-10-06 | 1983-11-09 | British Telecomm | Digital coding |
GB8421498D0 (en) * | 1984-08-24 | 1984-09-26 | British Telecomm | Frequency domain speech coding |
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DE3639753A1 (de) * | 1986-11-21 | 1988-06-01 | Inst Rundfunktechnik Gmbh | Verfahren zum uebertragen digitalisierter tonsignale |
JPS63193268A (ja) * | 1987-02-05 | 1988-08-10 | Mitsubishi Electric Corp | 方程式の求解装置 |
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-
1990
- 1990-01-29 KR KR1019900702194A patent/KR100220862B1/ko not_active IP Right Cessation
- 1990-01-29 CA CA002140678A patent/CA2140678C/en not_active Expired - Lifetime
- 1990-01-29 JP JP2503714A patent/JP2811369B2/ja not_active Expired - Lifetime
- 1990-01-29 DE DE69032624T patent/DE69032624T2/de not_active Expired - Lifetime
- 1990-01-29 CA CA002026213A patent/CA2026213C/en not_active Expired - Lifetime
- 1990-01-29 BR BR909007062A patent/BR9007062A/pt unknown
- 1990-01-29 AT AT94107838T patent/ATE170682T1/de not_active IP Right Cessation
- 1990-01-29 DK DK94107838T patent/DK0610975T3/da active
- 1990-01-29 DK DK90903695.6T patent/DK0447495T3/da active
- 1990-01-29 DE DE69015613T patent/DE69015613T2/de not_active Expired - Lifetime
- 1990-01-29 EP EP94107838A patent/EP0610975B1/en not_active Expired - Lifetime
- 1990-01-29 SG SG9608277A patent/SG82549A1/en unknown
- 1990-01-29 CA CA002026207A patent/CA2026207C/en not_active Expired - Lifetime
- 1990-01-29 KR KR1019900702168A patent/KR100220861B1/ko not_active IP Right Cessation
- 1990-01-29 AT AT90903695T patent/ATE116495T1/de not_active IP Right Cessation
- 1990-01-29 ES ES94107838T patent/ES2119932T3/es not_active Expired - Lifetime
- 1990-01-29 CA CA002340610A patent/CA2340610C/en not_active Expired - Lifetime
- 1990-01-29 CA CA002332407A patent/CA2332407C/en not_active Expired - Lifetime
- 1990-01-29 AU AU51563/90A patent/AU643677B2/en not_active Expired
- 1990-01-29 WO PCT/US1990/000507 patent/WO1990009064A1/en active IP Right Grant
- 1990-01-29 ES ES90903695T patent/ES2065524T3/es not_active Expired - Lifetime
- 1990-01-29 EP EP90903695A patent/EP0447495B1/en not_active Expired - Lifetime
-
1998
- 1998-05-21 JP JP10158420A patent/JP3093179B2/ja not_active Expired - Lifetime
-
1999
- 1999-02-02 KR KR1019990003414A patent/KR100214252B1/ko not_active IP Right Cessation
- 1999-02-02 KR KR1019990003418A patent/KR100214253B1/ko not_active IP Right Cessation
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