ES2099185T3 - Codificador, descodificador y codificador/descodificador de transformada de baja frecuencia de bits para aplicaciones de audio de alta calidad. - Google Patents

Codificador, descodificador y codificador/descodificador de transformada de baja frecuencia de bits para aplicaciones de audio de alta calidad.

Info

Publication number
ES2099185T3
ES2099185T3 ES92112940T ES92112940T ES2099185T3 ES 2099185 T3 ES2099185 T3 ES 2099185T3 ES 92112940 T ES92112940 T ES 92112940T ES 92112940 T ES92112940 T ES 92112940T ES 2099185 T3 ES2099185 T3 ES 2099185T3
Authority
ES
Spain
Prior art keywords
decoder
encoder
codifier
transform
low frequency
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
Application number
ES92112940T
Other languages
English (en)
Inventor
Louis Dunn Fielder
Grant Allen Davidson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dolby Laboratories Licensing Corp
Original Assignee
Dolby Laboratories Licensing Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26973611&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2099185(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dolby Laboratories Licensing Corp filed Critical Dolby Laboratories Licensing Corp
Application granted granted Critical
Publication of ES2099185T3 publication Critical patent/ES2099185T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G10L19/02—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
    • 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
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • 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
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1806—Pulse code modulation systems for audio signals
    • G11B20/1809—Pulse code modulation systems for audio signals by interleaving
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M5/00—Conversion of the form of the representation of individual digits
    • H03M5/02—Conversion to or from representation by pulses
    • H03M5/04—Conversion to or from representation by pulses the pulses having two levels
    • 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)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computational Linguistics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Stereophonic System (AREA)

Abstract

SE MUESTRA UN SISTEMA CODIFICADOR/DECODIFICADOR TRANSFORMADOR QUE EMPLEA UNA CUANTIFICACION DE COEFICIENTE DE TRANSFORMADOR ADAPTABLE, Y UNA ASIGNACION DE BIT ADAPTABLE PARA CODIFICAR MUSICA DE ALTA CALIDAD INCLUYENDO APLICACIONES DE DISCO COMPACTO Y EMISIONES EN REGIMEN DE BIT BAJO (128 KBITS POR SEGUNDO). SE ASIGNAN UN NUMERO FIJADO DE BITS A LOS COEFICIENTES DE TRANSFORMADOR DE FRECUENCIA BAJA PARA REDUCIR Y/O ELIMINAR ARTEFACTOS* DE FRECUENCIA BAJA. SE CUANTIFICAN OTROS COEFICIENTES DE TRANSFORMADOR DE MANERA NO UNIFORME MEDIANTE LA ASIGNACION DE UN NUMERO FIJADO DE BITS Y UN NUMERO VARIABLE DE BITS DETERMINADOS DE FORMA ADAPTABLE BASADOS EN ENMASCARAMIENTO PSICOACUSTICO. SE DESCRIBE UNA TECNICA PARA ASIGNAR EL BIT FIJADO Y ASIGNACIONES DE BIT ADAPTABLE. NO ES NECESARIA LA TRANSMISION DE INFORMACION LATERAL SOBRE BITS ASIGNADOS DE MANERA ADAPTABLE.
ES92112940T 1989-01-27 1990-01-29 Codificador, descodificador y codificador/descodificador de transformada de baja frecuencia de bits para aplicaciones de audio de alta calidad. Expired - Lifetime ES2099185T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US30371489A 1989-01-27 1989-01-27
US43986889A 1989-11-20 1989-11-20

Publications (1)

Publication Number Publication Date
ES2099185T3 true ES2099185T3 (es) 1997-05-16

Family

ID=26973611

Family Applications (3)

Application Number Title Priority Date Filing Date
ES92112939T Expired - Lifetime ES2109296T3 (es) 1989-01-27 1990-01-29 Codificador, descodificador y codificador/descodificador con transformacion de baja frecuencia de bits para audioinformacion de alta calidad.
ES92112940T Expired - Lifetime ES2099185T3 (es) 1989-01-27 1990-01-29 Codificador, descodificador y codificador/descodificador de transformada de baja frecuencia de bits para aplicaciones de audio de alta calidad.
ES93108874T Expired - Lifetime ES2085680T5 (es) 1989-01-27 1990-01-29 Asignacion adaptativa de bits para un codificador y un descodificador de audio.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES92112939T Expired - Lifetime ES2109296T3 (es) 1989-01-27 1990-01-29 Codificador, descodificador y codificador/descodificador con transformacion de baja frecuencia de bits para audioinformacion de alta calidad.

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES93108874T Expired - Lifetime ES2085680T5 (es) 1989-01-27 1990-01-29 Asignacion adaptativa de bits para un codificador y un descodificador de audio.

Country Status (10)

Country Link
EP (5) EP0455738B2 (es)
JP (1) JP2821713B2 (es)
AT (4) ATE150571T1 (es)
AU (2) AU631404B2 (es)
BR (1) BR9007063A (es)
DE (4) DE69026278T3 (es)
DK (3) DK0514949T3 (es)
ES (3) ES2109296T3 (es)
SG (3) SG49891A1 (es)
WO (1) WO1990009022A1 (es)

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EP0520068B1 (en) * 1991-01-08 1996-05-15 Dolby Laboratories Licensing Corporation Encoder/decoder for multidimensional sound fields
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
US5463424A (en) * 1993-08-03 1995-10-31 Dolby Laboratories Licensing Corporation Multi-channel transmitter/receiver system providing matrix-decoding compatible signals
JP3131542B2 (ja) * 1993-11-25 2001-02-05 シャープ株式会社 符号化復号化装置
JP3186413B2 (ja) * 1994-04-01 2001-07-11 ソニー株式会社 データ圧縮符号化方法、データ圧縮符号化装置及びデータ記録媒体
US6167093A (en) * 1994-08-16 2000-12-26 Sony Corporation Method and apparatus for encoding the information, method and apparatus for decoding the information and method for information transmission
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
JP3521596B2 (ja) * 1996-01-30 2004-04-19 ソニー株式会社 信号符号化方法
US5890106A (en) * 1996-03-19 1999-03-30 Dolby Laboratories Licensing Corporation Analysis-/synthesis-filtering system with efficient oddly-stacked singleband filter bank using time-domain aliasing cancellation
CA2221845C (en) * 1996-03-19 2004-06-08 Dolby Laboratories Licensing Corporation Analysis/synthesis filtering system with efficient oddly-stacked single-sideband filter bank using time-domain aliasing cancellation
KR100378790B1 (ko) * 1996-04-23 2003-05-01 엘지전자 주식회사 서브밴드양자화레벨디코딩장치
KR100223169B1 (ko) * 1996-06-14 1999-10-15 윤종용 펄스부호변조된 디지털 오디오신호의 기록 및 재생을 위한 시스템
US5892746A (en) * 1996-06-15 1999-04-06 Samsung Electronics Co., Ltd. System for recording and/or reproducing a pulse code modulation digital audio signal
JP3092653B2 (ja) * 1996-06-21 2000-09-25 日本電気株式会社 広帯域音声符号化装置及び音声復号装置並びに音声符号化復号装置
TW301103B (en) * 1996-09-07 1997-03-21 Nat Science Council The time domain alias cancellation device and its signal processing method
JPH1083623A (ja) * 1996-09-10 1998-03-31 Sony Corp 信号記録方法、信号記録装置、記録媒体および信号処理方法
GB2326572A (en) * 1997-06-19 1998-12-23 Softsound Limited Low bit rate audio coder and decoder
US6081783A (en) * 1997-11-14 2000-06-27 Cirrus Logic, Inc. Dual processor digital audio decoder with shared memory data transfer and task partitioning for decompressing compressed audio data, and systems and methods using the same
US6016473A (en) * 1998-04-07 2000-01-18 Dolby; Ray M. Low bit-rate spatial coding method and system
US6665409B1 (en) 1999-04-12 2003-12-16 Cirrus Logic, Inc. Methods for surround sound simulation and circuits and systems using the same
US6356871B1 (en) 1999-06-14 2002-03-12 Cirrus Logic, Inc. Methods and circuits for synchronizing streaming data and systems using the same
US6349285B1 (en) 1999-06-28 2002-02-19 Cirrus Logic, Inc. Audio bass management methods and circuits and systems using the same
JP2002135122A (ja) 2000-10-19 2002-05-10 Nec Corp オーディオ信号符号化装置
JP4300800B2 (ja) * 2000-12-22 2009-07-22 ソニー株式会社 符号化装置および方法、復号装置および方法、並びに記録媒体
US7123655B2 (en) 2001-08-09 2006-10-17 Sharp Laboratories Of America, Inc. Method for reduced bit-depth quantization
US6934677B2 (en) 2001-12-14 2005-08-23 Microsoft Corporation Quantization matrices based on critical band pattern information for digital audio wherein quantization bands differ from critical bands
US7240001B2 (en) 2001-12-14 2007-07-03 Microsoft Corporation Quality improvement techniques in an audio encoder
KR101016224B1 (ko) 2006-12-12 2011-02-25 프라운호퍼-게젤샤프트 추르 푀르데룽 데어 안제반텐 포르슝 에 파우 인코더, 디코더 및 시간 영역 데이터 스트림을 나타내는 데이터 세그먼트를 인코딩하고 디코딩하는 방법
US7885819B2 (en) 2007-06-29 2011-02-08 Microsoft Corporation Bitstream syntax for multi-process audio decoding
RU2562395C2 (ru) * 2008-03-04 2015-09-10 Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. Микширование входящих информационных потоков
KR100940532B1 (ko) * 2009-09-28 2010-02-10 삼성전자주식회사 저비트율 복호화방법 및 장치
EP2849180B1 (en) * 2012-05-11 2020-01-01 Panasonic Corporation Hybrid audio signal encoder, hybrid audio signal decoder, method for encoding audio signal, and method for decoding audio signal
JP6174129B2 (ja) 2012-05-18 2017-08-02 ドルビー ラボラトリーズ ライセンシング コーポレイション パラメトリックオーディオコーダに関連するリバーシブルダイナミックレンジ制御情報を維持するシステム
US10844689B1 (en) 2019-12-19 2020-11-24 Saudi Arabian Oil Company Downhole ultrasonic actuator system for mitigating lost circulation
US10438597B2 (en) 2017-08-31 2019-10-08 Dolby International Ab Decoder-provided time domain aliasing cancellation during lossy/lossless transitions

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DE3506912A1 (de) † 1985-02-27 1986-08-28 Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover Verfahren zur uebertragung eines audiosignals
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DE3629434C2 (de) * 1986-08-29 1994-07-28 Karlheinz Dipl Ing Brandenburg Digitales Codierverfahren
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NL8700985A (nl) * 1987-04-27 1988-11-16 Philips Nv Systeem voor sub-band codering van een digitaal audiosignaal.
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Also Published As

Publication number Publication date
SG47111A1 (en) 1998-03-20
EP0560413A3 (es) 1994-05-04
DE69031737T2 (de) 1998-04-09
DE69006011D1 (de) 1994-02-24
SG48247A1 (en) 1998-04-17
ATE160464T1 (de) 1997-12-15
EP0560413B2 (en) 2002-05-15
DE69026278T3 (de) 2002-08-08
DE69006011T2 (de) 1994-08-18
EP0513860B1 (en) 1997-03-19
ATE100235T1 (de) 1994-01-15
JP2821713B2 (ja) 1998-11-05
ATE136147T1 (de) 1996-04-15
EP0511692A2 (en) 1992-11-04
ES2085680T3 (es) 1996-06-01
BR9007063A (pt) 1991-10-08
DK0513860T3 (da) 1997-08-18
EP0514949B1 (en) 1997-11-19
DE69031737D1 (de) 1998-01-02
AU5159690A (en) 1990-08-24
DE69006011T3 (de) 2007-08-23
WO1990009022A1 (en) 1990-08-09
DE69030266D1 (de) 1997-04-24
AU655535B2 (en) 1994-12-22
DE69030266T2 (de) 1997-08-14
EP0560413A2 (en) 1993-09-15
EP0513860A2 (en) 1992-11-19
ATE150571T1 (de) 1997-04-15
DE69026278T2 (de) 1996-11-14
ES2109296T3 (es) 1998-01-16
DK0560413T4 (da) 2002-06-17
EP0513860A3 (en) 1993-01-27
EP0560413B1 (en) 1996-03-27
AU631404B2 (en) 1992-11-26
AU3373693A (en) 1993-04-22
EP0514949A2 (en) 1992-11-25
ES2085680T5 (es) 2002-10-16
DK0514949T3 (da) 1998-07-27
DE69026278D1 (de) 1996-05-02
EP0455738B1 (en) 1994-01-12
EP0514949A3 (en) 1993-02-03
DK0560413T3 (da) 1996-04-22
SG49891A1 (en) 1998-06-15
EP0455738A1 (en) 1991-11-13
EP0511692A3 (en) 1993-01-27
JPH04504192A (ja) 1992-07-23
EP0455738B2 (en) 2007-04-04

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