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DK0709005T3 - Fremgangsmåde og apparat til beregningsmæssig, effektiv, adaptiv bitallokering for kodning. - Google Patents

Fremgangsmåde og apparat til beregningsmæssig, effektiv, adaptiv bitallokering for kodning.

Info

Publication number
DK0709005T3
DK0709005T3 DK94922585.8T DK94922585T DK0709005T3 DK 0709005 T3 DK0709005 T3 DK 0709005T3 DK 94922585 T DK94922585 T DK 94922585T DK 0709005 T3 DK0709005 T3 DK 0709005T3
Authority
DK
Denmark
Prior art keywords
allocation
function
subband signals
values
psychoacoustic
Prior art date
Application number
DK94922585.8T
Other languages
English (en)
Inventor
Louis Dunn Fielder
Mark Franklin Davis
Craig Campbell Todd
Grant Allen Davidson
Brian David Link
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
Priority claimed from US08/145,975 external-priority patent/US5632003A/en
Application filed by Dolby Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Application granted granted Critical
Publication of DK0709005T3 publication Critical patent/DK0709005T3/da

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
    • 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
    • H04B1/667—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 a division in frequency subbands

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)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
DK94922585.8T 1993-07-16 1994-07-18 Fremgangsmåde og apparat til beregningsmæssig, effektiv, adaptiv bitallokering for kodning. DK0709005T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US9226993A 1993-07-16 1993-07-16
US08/145,975 US5632003A (en) 1993-07-16 1993-11-01 Computationally efficient adaptive bit allocation for coding method and apparatus

Publications (1)

Publication Number Publication Date
DK0709005T3 true DK0709005T3 (da) 1997-07-14

Family

ID=26785469

Family Applications (1)

Application Number Title Priority Date Filing Date
DK94922585.8T DK0709005T3 (da) 1993-07-16 1994-07-18 Fremgangsmåde og apparat til beregningsmæssig, effektiv, adaptiv bitallokering for kodning.

Country Status (10)

Country Link
US (1) US5623577A (da)
EP (1) EP0709005B1 (da)
JP (1) JP3297051B2 (da)
AT (1) ATE147909T1 (da)
AU (1) AU694131B2 (da)
CA (1) CA2166551C (da)
DE (1) DE69401514T2 (da)
DK (1) DK0709005T3 (da)
ES (1) ES2096481T3 (da)
WO (1) WO1995002930A1 (da)

Families Citing this family (75)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3307138B2 (ja) * 1995-02-27 2002-07-24 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
US6263307B1 (en) 1995-04-19 2001-07-17 Texas Instruments Incorporated Adaptive weiner filtering using line spectral frequencies
WO1996035269A1 (en) * 1995-05-03 1996-11-07 Sony Corporation Non-linearly quantizing an information signal
US5960390A (en) * 1995-10-05 1999-09-28 Sony Corporation Coding method for using multi channel audio signals
JPH09148937A (ja) * 1995-11-21 1997-06-06 Sony Corp 符号化処理方法、復号化処理方法、符号化処理装置および復号化処理装置
US5825320A (en) * 1996-03-19 1998-10-20 Sony Corporation Gain control method for audio encoding device
GB9700854D0 (en) * 1997-01-16 1997-03-05 Scient Generics Ltd Sub-audible acoustic data transmission mechanism
FR2768547B1 (fr) 1997-09-18 1999-11-19 Matra Communication Procede de debruitage d'un signal de parole numerique
US5913191A (en) * 1997-10-17 1999-06-15 Dolby Laboratories Licensing Corporation Frame-based audio coding with additional filterbank to suppress aliasing artifacts at frame boundaries
US5899969A (en) * 1997-10-17 1999-05-04 Dolby Laboratories Licensing Corporation Frame-based audio coding with gain-control words
US5903872A (en) * 1997-10-17 1999-05-11 Dolby Laboratories Licensing Corporation Frame-based audio coding with additional filterbank to attenuate spectral splatter at frame boundaries
US6092040A (en) * 1997-11-21 2000-07-18 Voran; Stephen Audio signal time offset estimation algorithm and measuring normalizing block algorithms for the perceptually-consistent comparison of speech signals
WO1999035758A1 (en) * 1998-01-12 1999-07-15 Sgs-Thomson Microelectronics Asia Pacific (Pte.)_Ltd. Method and apparatus for spectral exponent reshaping in a transform coder for high quality audio
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
US6128593A (en) * 1998-08-04 2000-10-03 Sony Corporation System and method for implementing a refined psycho-acoustic modeler
US6363338B1 (en) * 1999-04-12 2002-03-26 Dolby Laboratories Licensing Corporation Quantization in perceptual audio coders with compensation for synthesis filter noise spreading
US6246345B1 (en) * 1999-04-16 2001-06-12 Dolby Laboratories Licensing Corporation Using gain-adaptive quantization and non-uniform symbol lengths for improved audio coding
DE19947877C2 (de) * 1999-10-05 2001-09-13 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Einbringen von Informationen in einen Datenstrom sowie Verfahren und Vorrichtung zum Codieren eines Audiosignals
US7003449B1 (en) 1999-10-30 2006-02-21 Stmicroelectronics Asia Pacific Pte Ltd. Method of encoding an audio signal using a quality value for bit allocation
US7742927B2 (en) * 2000-04-18 2010-06-22 France Telecom Spectral enhancing method and device
US6647365B1 (en) * 2000-06-02 2003-11-11 Lucent Technologies Inc. Method and apparatus for detecting noise-like signal components
US7110953B1 (en) * 2000-06-02 2006-09-19 Agere Systems Inc. Perceptual coding of audio signals using separated irrelevancy reduction and redundancy reduction
US6778953B1 (en) * 2000-06-02 2004-08-17 Agere Systems Inc. Method and apparatus for representing masked thresholds in a perceptual audio coder
JP3576935B2 (ja) * 2000-07-21 2004-10-13 株式会社ケンウッド 周波数間引き装置、周波数間引き方法及び記録媒体
US6915264B2 (en) * 2001-02-22 2005-07-05 Lucent Technologies Inc. Cochlear filter bank structure for determining masked thresholds for use in perceptual audio coding
AUPR433901A0 (en) * 2001-04-10 2001-05-17 Lake Technology Limited High frequency signal construction method
JP2002330075A (ja) * 2001-05-07 2002-11-15 Matsushita Electric Ind Co Ltd サブバンドａｄｐｃｍ符号化方法、復号方法、サブバンドａｄｐｃｍ符号化装置、復号装置およびワイヤレスマイクロホン送信システム、受信システム
US7206739B2 (en) * 2001-05-23 2007-04-17 Samsung Electronics Co., Ltd. Excitation codebook search method in a speech coding system
US7062429B2 (en) * 2001-09-07 2006-06-13 Agere Systems Inc. Distortion-based method and apparatus for buffer control in a communication system
US7333929B1 (en) 2001-09-13 2008-02-19 Chmounk Dmitri V Modular scalable compressed audio data stream
WO2003036621A1 (en) * 2001-10-22 2003-05-01 Motorola, Inc., A Corporation Of The State Of Delaware Method and apparatus for enhancing loudness of an audio signal
US6950794B1 (en) * 2001-11-20 2005-09-27 Cirrus Logic, Inc. Feedforward prediction of scalefactors based on allowable distortion for noise shaping in psychoacoustic-based compression
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
US7197083B2 (en) * 2001-12-21 2007-03-27 Intel Corporation Creation of spectral windows through the use of high rate code words
US20030187663A1 (en) 2002-03-28 2003-10-02 Truman Michael Mead Broadband frequency translation for high frequency regeneration
US7447631B2 (en) * 2002-06-17 2008-11-04 Dolby Laboratories Licensing Corporation Audio coding system using spectral hole filling
TWI288915B (en) * 2002-06-17 2007-10-21 Dolby Lab Licensing Corp Improved audio coding system using characteristics of a decoded signal to adapt synthesized spectral components
JP4676140B2 (ja) * 2002-09-04 2011-04-27 マイクロソフト コーポレーション オーディオの量子化および逆量子化
US7502743B2 (en) 2002-09-04 2009-03-10 Microsoft Corporation Multi-channel audio encoding and decoding with multi-channel transform selection
US7299190B2 (en) 2002-09-04 2007-11-20 Microsoft Corporation Quantization and inverse quantization for audio
US7617100B1 (en) * 2003-01-10 2009-11-10 Nvidia Corporation Method and system for providing an excitation-pattern based audio coding scheme
KR100571824B1 (ko) * 2003-11-26 2006-04-17 삼성전자주식회사 부가정보 삽입된 ｍｐｅｇ-4 오디오 ｂｓａｃ부호화/복호화 방법 및 장치
US7460990B2 (en) * 2004-01-23 2008-12-02 Microsoft Corporation Efficient coding of digital media spectral data using wide-sense perceptual similarity
DE102004009949B4 (de) * 2004-03-01 2006-03-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Ermitteln eines Schätzwertes
JP4734859B2 (ja) * 2004-06-28 2011-07-27 ソニー株式会社 信号符号化装置及び方法、並びに信号復号装置及び方法
KR20070051857A (ko) * 2004-08-17 2007-05-18 코닌클리케 필립스 일렉트로닉스 엔.브이. 스케일러블 오디오 코딩
TWI498882B (zh) * 2004-08-25 2015-09-01 Dolby Lab Licensing Corp 音訊解碼器
US7676362B2 (en) * 2004-12-31 2010-03-09 Motorola, Inc. Method and apparatus for enhancing loudness of a speech signal
JP4800645B2 (ja) * 2005-03-18 2011-10-26 カシオ計算機株式会社 音声符号化装置、及び音声符号化方法
TWI397903B (zh) * 2005-04-13 2013-06-01 Dolby Lab Licensing Corp 編碼音訊之節約音量測量技術
US8280730B2 (en) 2005-05-25 2012-10-02 Motorola Mobility Llc Method and apparatus of increasing speech intelligibility in noisy environments
US7548853B2 (en) * 2005-06-17 2009-06-16 Shmunk Dmitry V Scalable compressed audio bit stream and codec using a hierarchical filterbank and multichannel joint coding
US7831434B2 (en) * 2006-01-20 2010-11-09 Microsoft Corporation Complex-transform channel coding with extended-band frequency coding
US8190425B2 (en) * 2006-01-20 2012-05-29 Microsoft Corporation Complex cross-correlation parameters for multi-channel audio
US7797155B2 (en) * 2006-07-26 2010-09-14 Ittiam Systems (P) Ltd. System and method for measurement of perceivable quantization noise in perceptual audio coders
WO2008021247A2 (en) * 2006-08-15 2008-02-21 Dolby Laboratories Licensing Corporation Arbitrary shaping of temporal noise envelope without side-information
FR2912249A1 (fr) * 2007-02-02 2008-08-08 France Telecom Codage/decodage perfectionnes de signaux audionumeriques.
US7885819B2 (en) 2007-06-29 2011-02-08 Microsoft Corporation Bitstream syntax for multi-process audio decoding
US8315398B2 (en) 2007-12-21 2012-11-20 Dts Llc System for adjusting perceived loudness of audio signals
SG189747A1 (en) * 2008-04-18 2013-05-31 Dolby Lab Licensing Corp Method and apparatus for maintaining speech audibility in multi-channel audio with minimal impact on surround experience
CN101425293B (zh) * 2008-09-24 2011-06-08 天津大学 一种高效感知音频比特分配方法
TWI643187B (zh) 2009-05-27 2018-12-01 瑞典商杜比國際公司 從訊號的低頻成份產生該訊號之高頻成份的系統與方法，及其機上盒、電腦程式產品、軟體程式及儲存媒體
US11657788B2 (en) 2009-05-27 2023-05-23 Dolby International Ab Efficient combined harmonic transposition
US8538042B2 (en) 2009-08-11 2013-09-17 Dts Llc System for increasing perceived loudness of speakers
US20110257978A1 (en) * 2009-10-23 2011-10-20 Brainlike, Inc. Time Series Filtering, Data Reduction and Voice Recognition in Communication Device
US8958510B1 (en) * 2010-06-10 2015-02-17 Fredric J. Harris Selectable bandwidth filter
FR2973551A1 (fr) * 2011-03-29 2012-10-05 France Telecom Allocation par sous-bandes de bits de quantification de parametres d'information spatiale pour un codage parametrique
CN102543090B (zh) * 2011-12-31 2013-12-04 深圳市茂碧信息科技有限公司 一种应用于变速率语音和音频编码的码率自动控制系统
US9312829B2 (en) 2012-04-12 2016-04-12 Dts Llc System for adjusting loudness of audio signals in real time
RU2610588C2 (ru) 2012-11-07 2017-02-13 Долби Интернешнл Аб Вычисление отношения сигнал-шум конвертора с уменьшенной сложностью
JP2016508298A (ja) * 2012-11-16 2016-03-17 ヴィド スケール インコーポレイテッド 視聴条件を意識したビデオ符号化のための知覚前処理フィルタ
KR101520938B1 (ko) * 2013-04-26 2015-05-18 미디어젠(주) 음량 크기의 통계적 특성을 이용한 음량측정방법
US10045050B2 (en) 2014-04-25 2018-08-07 Vid Scale, Inc. Perceptual preprocessing filter for viewing-conditions-aware video coding
JP6492915B2 (ja) * 2015-04-15 2019-04-03 富士通株式会社 符号化装置、符号化方法、及びプログラム

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2002015C (en) * 1988-12-30 1994-12-27 Joseph Lindley Ii Hall Perceptual coding of audio signals
JP2906646B2 (ja) * 1990-11-09 1999-06-21 松下電器産業株式会社 音声帯域分割符号化装置
JP3446216B2 (ja) * 1992-03-06 2003-09-16 ソニー株式会社 音声信号処理方法

Also Published As

Publication number Publication date
EP0709005A1 (en) 1996-05-01
US5623577A (en) 1997-04-22
JPH09500503A (ja) 1997-01-14
CA2166551C (en) 2005-10-11
DE69401514D1 (de) 1997-02-27
ATE147909T1 (de) 1997-02-15
DE69401514T2 (de) 1997-06-12
CA2166551A1 (en) 1995-01-26
EP0709005B1 (en) 1997-01-15
JP3297051B2 (ja) 2002-07-02
WO1995002930A1 (en) 1995-01-26
ES2096481T3 (es) 1997-03-01
AU7364294A (en) 1995-02-13
AU694131B2 (en) 1998-07-16

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