SG48247A1 - Adaptive bit allocation for audio encoder and decoder - Google Patents

Adaptive bit allocation for audio encoder and decoder

Info

Publication number
SG48247A1
SG48247A1 SG1996008275A SG1996008275A SG48247A1 SG 48247 A1 SG48247 A1 SG 48247A1 SG 1996008275 A SG1996008275 A SG 1996008275A SG 1996008275 A SG1996008275 A SG 1996008275A SG 48247 A1 SG48247 A1 SG 48247A1
Authority
SG
Singapore
Prior art keywords
decoder
bit allocation
adaptive bit
audio encoder
encoder
Prior art date
Application number
SG1996008275A
Other languages
English (en)
Inventor
Louis Dunn Fielder
Grant Allen Davidson
Original Assignee
Dolby Lab 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=SG48247(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dolby Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Publication of SG48247A1 publication Critical patent/SG48247A1/en

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
    • G10L19/02—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)
  • Computational Linguistics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (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)
SG1996008275A 1989-01-27 1990-01-29 Adaptive bit allocation for audio encoder and decoder SG48247A1 (en)

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
SG48247A1 true SG48247A1 (en) 1998-04-17

Family

ID=26973611

Family Applications (3)

Application Number Title Priority Date Filing Date
SG1996008275A SG48247A1 (en) 1989-01-27 1990-01-29 Adaptive bit allocation for audio encoder and decoder
SG1996008335A SG47111A1 (en) 1989-01-27 1990-01-29 Low bit rate transform coder decoder and encoder/decoder for high-quality audio
SG1996008307A SG49891A1 (en) 1989-01-27 1990-01-29 Low bit rate transform coder decoder and encoder/decoder for high-quality audio

Family Applications After (2)

Application Number Title Priority Date Filing Date
SG1996008335A SG47111A1 (en) 1989-01-27 1990-01-29 Low bit rate transform coder decoder and encoder/decoder for high-quality audio
SG1996008307A SG49891A1 (en) 1989-01-27 1990-01-29 Low bit rate transform coder decoder and encoder/decoder for high-quality audio

Country Status (10)

Country Link
EP (5) EP0514949B1 (da)
JP (1) JP2821713B2 (da)
AT (4) ATE160464T1 (da)
AU (2) AU631404B2 (da)
BR (1) BR9007063A (da)
DE (4) DE69026278T3 (da)
DK (3) DK0513860T3 (da)
ES (3) ES2099185T3 (da)
SG (3) SG48247A1 (da)
WO (1) WO1990009022A1 (da)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992012607A1 (en) * 1991-01-08 1992-07-23 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
ES2176722T3 (es) * 1996-03-19 2002-12-01 Dolby Lab Licensing Corp Sistema de filtrado de analisis/sintesis con bancos de filtros eficaces de banda lateral unica con apilamiento no uniforme, que utiliza cancelacion de solapamiento de espectro en el dominio del tiempo.
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
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
EP1345331B1 (en) * 2000-12-22 2008-08-20 Sony Corporation Encoder
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
ATE547898T1 (de) * 2006-12-12 2012-03-15 Fraunhofer Ges Forschung Kodierer, dekodierer und verfahren zur kodierung und dekodierung von datensegmenten zur darstellung eines zeitdomänen-datenstroms
US7885819B2 (en) 2007-06-29 2011-02-08 Microsoft Corporation Bitstream syntax for multi-process audio decoding
KR101253278B1 (ko) * 2008-03-04 2013-04-11 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 복수의 입력 데이터 스트림을 믹싱하는 장치 및 방법
KR100940532B1 (ko) * 2009-09-28 2010-02-10 삼성전자주식회사 저비트율 복호화방법 및 장치
CN103548080B (zh) * 2012-05-11 2017-03-08 松下电器产业株式会社 声音信号混合编码器、声音信号混合解码器、声音信号编码方法以及声音信号解码方法
US10844689B1 (en) 2019-12-19 2020-11-24 Saudi Arabian Oil Company Downhole ultrasonic actuator system for mitigating lost circulation
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
US10438597B2 (en) 2017-08-31 2019-10-08 Dolby International Ab Decoder-provided time domain aliasing cancellation during lossy/lossless transitions

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064119B1 (fr) * 1981-04-30 1985-08-28 International Business Machines Corporation Perfectionnement aux procédés de codage de la voix et dispositif de mise en oeuvre du procédé perfectionné
US4455649A (en) * 1982-01-15 1984-06-19 International Business Machines Corporation Method and apparatus for efficient statistical multiplexing of voice and data signals
GB8330885D0 (en) * 1983-11-18 1983-12-29 British Telecomm Data transmission
GB8421498D0 (en) * 1984-08-24 1984-09-26 British Telecomm Frequency domain speech coding
DE3506912A1 (de) † 1985-02-27 1986-08-28 Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover Verfahren zur uebertragung eines audiosignals
IL76283A0 (en) * 1985-09-03 1986-01-31 Ibm Process and system for coding signals
DE3629434C2 (de) * 1986-08-29 1994-07-28 Karlheinz Dipl Ing Brandenburg Digitales Codierverfahren
DE3639753A1 (de) † 1986-11-21 1988-06-01 Inst Rundfunktechnik Gmbh Verfahren zum uebertragen digitalisierter tonsignale
NL8700985A (nl) * 1987-04-27 1988-11-16 Philips Nv Systeem voor sub-band codering van een digitaal audiosignaal.
NL8901032A (nl) * 1988-11-10 1990-06-01 Philips Nv Coder om extra informatie op te nemen in een digitaal audiosignaal met een tevoren bepaald formaat, een decoder om deze extra informatie uit dit digitale signaal af te leiden, een inrichting voor het opnemen van een digitaal signaal op een registratiedrager, voorzien van de coder, en een registratiedrager verkregen met deze inrichting.

Also Published As

Publication number Publication date
DE69026278T2 (de) 1996-11-14
WO1990009022A1 (en) 1990-08-09
DK0514949T3 (da) 1998-07-27
SG49891A1 (en) 1998-06-15
ATE150571T1 (de) 1997-04-15
BR9007063A (pt) 1991-10-08
ATE160464T1 (de) 1997-12-15
EP0511692A3 (en) 1993-01-27
EP0514949A2 (en) 1992-11-25
JPH04504192A (ja) 1992-07-23
JP2821713B2 (ja) 1998-11-05
AU5159690A (en) 1990-08-24
AU3373693A (en) 1993-04-22
ATE100235T1 (de) 1994-01-15
DE69026278D1 (de) 1996-05-02
EP0455738A1 (en) 1991-11-13
DK0560413T3 (da) 1996-04-22
DK0513860T3 (da) 1997-08-18
DK0560413T4 (da) 2002-06-17
ES2099185T3 (es) 1997-05-16
ES2085680T5 (es) 2002-10-16
DE69006011T3 (de) 2007-08-23
DE69031737T2 (de) 1998-04-09
DE69030266T2 (de) 1997-08-14
SG47111A1 (en) 1998-03-20
AU631404B2 (en) 1992-11-26
DE69006011D1 (de) 1994-02-24
ES2109296T3 (es) 1998-01-16
EP0560413B1 (en) 1996-03-27
AU655535B2 (en) 1994-12-22
EP0511692A2 (en) 1992-11-04
EP0513860A2 (en) 1992-11-19
EP0455738B2 (en) 2007-04-04
DE69030266D1 (de) 1997-04-24
DE69031737D1 (de) 1998-01-02
DE69006011T2 (de) 1994-08-18
EP0513860B1 (en) 1997-03-19
EP0513860A3 (en) 1993-01-27
DE69026278T3 (de) 2002-08-08
ES2085680T3 (es) 1996-06-01
EP0560413A3 (da) 1994-05-04
EP0560413B2 (en) 2002-05-15
EP0560413A2 (en) 1993-09-15
EP0514949B1 (en) 1997-11-19
ATE136147T1 (de) 1996-04-15
EP0514949A3 (en) 1993-02-03
EP0455738B1 (en) 1994-01-12

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