DE69320722D1 - Quantisierungsbitzahlzuweisung dadurch, dass zuerst das Subband mit der höchsten Signal/Verdeckungsrate ausgewählt wird - Google Patents

Quantisierungsbitzahlzuweisung dadurch, dass zuerst das Subband mit der höchsten Signal/Verdeckungsrate ausgewählt wird

Info

Publication number
DE69320722D1
DE69320722D1 DE69320722T DE69320722T DE69320722D1 DE 69320722 D1 DE69320722 D1 DE 69320722D1 DE 69320722 T DE69320722 T DE 69320722T DE 69320722 T DE69320722 T DE 69320722T DE 69320722 D1 DE69320722 D1 DE 69320722D1
Authority
DE
Germany
Prior art keywords
subband
selecting
bit number
highest signal
number assignment
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 - Fee Related
Application number
DE69320722T
Other languages
English (en)
Other versions
DE69320722T2 (de
Inventor
Osamu Kitabatake
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.)
NEC Electronics Corp
Original Assignee
NEC 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
Application filed by NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE69320722D1 publication Critical patent/DE69320722D1/de
Publication of DE69320722T2 publication Critical patent/DE69320722T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
DE69320722T 1992-06-24 1993-06-24 Quantisierungsbitzahlzuweisung dadurch, dass zuerst das Subband mit der höchsten Signal/Verdeckungsrate ausgewählt wird Expired - Fee Related DE69320722T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4165177A JP2976701B2 (ja) 1992-06-24 1992-06-24 量子化ビット数割当方法

Publications (2)

Publication Number Publication Date
DE69320722D1 true DE69320722D1 (de) 1998-10-08
DE69320722T2 DE69320722T2 (de) 1999-05-06

Family

ID=15807318

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69320722T Expired - Fee Related DE69320722T2 (de) 1992-06-24 1993-06-24 Quantisierungsbitzahlzuweisung dadurch, dass zuerst das Subband mit der höchsten Signal/Verdeckungsrate ausgewählt wird

Country Status (4)

Country Link
US (1) US5469474A (de)
EP (1) EP0578063B1 (de)
JP (1) JP2976701B2 (de)
DE (1) DE69320722T2 (de)

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KR100269213B1 (ko) * 1993-10-30 2000-10-16 윤종용 오디오신호의부호화방법
KR950022321A (ko) * 1993-12-29 1995-07-28 김주용 음성신호의 고속 비트할당 방법
US5764698A (en) * 1993-12-30 1998-06-09 International Business Machines Corporation Method and apparatus for efficient compression of high quality digital audio
KR960012475B1 (ko) * 1994-01-18 1996-09-20 대우전자 주식회사 디지탈 오디오 부호화장치의 채널별 비트 할당 장치
US5742734A (en) * 1994-08-10 1998-04-21 Qualcomm Incorporated Encoding rate selection in a variable rate vocoder
JP2778482B2 (ja) * 1994-09-26 1998-07-23 日本電気株式会社 帯域分割符号化装置
KR970011727B1 (en) * 1994-11-09 1997-07-14 Daewoo Electronics Co Ltd Apparatus for encoding of the audio signal
US5537510A (en) * 1994-12-30 1996-07-16 Daewoo Electronics Co., Ltd. Adaptive digital audio encoding apparatus and a bit allocation method thereof
CN1108023C (zh) * 1995-01-27 2003-05-07 大宇电子株式会社 自适应数字音频编码装置及其一种位分配方法
CA2185745C (en) * 1995-09-19 2001-02-13 Juin-Hwey Chen Synthesis of speech signals in the absence of coded parameters
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
FR2749723B1 (fr) * 1996-06-06 1998-09-04 France Telecom Procede et dispositif de codage en compression d'un signal numerique
DE19743662A1 (de) * 1997-10-02 1999-04-08 Bosch Gmbh Robert Verfahren und Vorrichtung zur Erzeugung eines bitratenskalierbaren Audio-Datenstroms
DE69834792T2 (de) * 1997-10-17 2007-05-16 Sony Corp. Datenverteilungssystem, Verteilungseinrichtung, Terminaleinrichtung und Datenverteilungsverfahren
US6581170B1 (en) 1997-10-23 2003-06-17 Sony Corporation Source coding to provide for robust error recovery during transmission losses
US6332042B1 (en) 1997-10-23 2001-12-18 Sony Corporation Apparatus and method for encoding and decoding data in a lossy transmission environment
US6282684B1 (en) 1997-10-23 2001-08-28 Sony Corporation Apparatus and method for recovery of data in a lossy transmission environment
JPH11234136A (ja) * 1998-02-19 1999-08-27 Sanyo Electric Co Ltd デジタルデータの符号化方法及び符号化装置
US6535148B1 (en) * 1999-02-12 2003-03-18 Sony Corporation Method and apparatus for truncated decoding
US6418548B1 (en) 1999-02-12 2002-07-09 Sony Corporation Method and apparatus for preprocessing for peripheral erroneous data
US6519369B1 (en) 1999-02-12 2003-02-11 Sony Corporation Method and apparatus for filter tap expansion
US6363118B1 (en) 1999-02-12 2002-03-26 Sony Corporation Apparatus and method for the recovery of compression constants in the encoded domain
US6307979B1 (en) 1999-02-12 2001-10-23 Sony Corporation Classified adaptive error recovery method and apparatus
WO2000048320A1 (en) * 1999-02-12 2000-08-17 Sony Electronics, Inc. Method and apparatus for truncated decoding
US6621936B1 (en) 1999-02-12 2003-09-16 Sony Corporation Method and apparatus for spatial class reduction
US6591398B1 (en) 1999-02-12 2003-07-08 Sony Corporation Multiple processing system
US6307560B1 (en) 1999-02-12 2001-10-23 Sony Corporation Classified adaptive spatio-temporal format conversion method and apparatus
US7010737B2 (en) * 1999-02-12 2006-03-07 Sony Corporation Method and apparatus for error data recovery
US6170074B1 (en) 1999-02-12 2001-01-02 Sony Corporation Source coding to provide for robust error recovery
US6549672B1 (en) * 1999-06-29 2003-04-15 Sony Corporation Method and apparatus for recovery of encoded data using central value
US6473876B1 (en) 1999-06-29 2002-10-29 Sony Corporation Method and apparatus for encoding of bitstreams using rotation
US6389562B1 (en) 1999-06-29 2002-05-14 Sony Corporation Source code shuffling to provide for robust error recovery
US6493842B1 (en) 1999-06-29 2002-12-10 Sony Corporation Time-varying randomization for data synchronization and implicit information transmission
US6351494B1 (en) 1999-09-24 2002-02-26 Sony Corporation Classified adaptive error recovery method and apparatus
US6522785B1 (en) 1999-09-24 2003-02-18 Sony Corporation Classified adaptive error recovery method and apparatus
US6539517B1 (en) 1999-11-09 2003-03-25 Sony Corporation Data transformation for explicit transmission of control information
JP4618873B2 (ja) * 2000-11-24 2011-01-26 パナソニック株式会社 オーディオ信号符号化方法、オーディオ信号符号化装置、音楽配信方法、および、音楽配信システム
KR101435411B1 (ko) * 2007-09-28 2014-08-28 삼성전자주식회사 심리 음향 모델의 마스킹 효과에 따라 적응적으로 양자화간격을 결정하는 방법과 이를 이용한 오디오 신호의부호화/복호화 방법 및 그 장치
US8700410B2 (en) * 2009-06-18 2014-04-15 Texas Instruments Incorporated Method and system for lossless value-location encoding
CN106409300B (zh) * 2014-03-19 2019-12-24 华为技术有限公司 用于信号处理的方法和装置

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Publication number Priority date Publication date Assignee Title
JPS5921039B2 (ja) * 1981-11-04 1984-05-17 日本電信電話株式会社 適応予測符号化方式
DE3639753A1 (de) * 1986-11-21 1988-06-01 Inst Rundfunktechnik Gmbh Verfahren zum uebertragen digitalisierter tonsignale
DE3703143A1 (de) * 1987-02-03 1988-08-11 Thomson Brandt Gmbh Verfahren zur uebertragung eines audiosignals

Also Published As

Publication number Publication date
DE69320722T2 (de) 1999-05-06
JP2976701B2 (ja) 1999-11-10
US5469474A (en) 1995-11-21
EP0578063A1 (de) 1994-01-12
JPH066313A (ja) 1994-01-14
EP0578063B1 (de) 1998-09-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: NEC ELECTRONICS CORP., KAWASAKI, KANAGAWA, JP

8339 Ceased/non-payment of the annual fee