DE602007010158D1 - Audiodekodierung - Google Patents

Audiodekodierung

Info

Publication number
DE602007010158D1
DE602007010158D1 DE602007010158T DE602007010158T DE602007010158D1 DE 602007010158 D1 DE602007010158 D1 DE 602007010158D1 DE 602007010158 T DE602007010158 T DE 602007010158T DE 602007010158 T DE602007010158 T DE 602007010158T DE 602007010158 D1 DE602007010158 D1 DE 602007010158D1
Authority
DE
Germany
Prior art keywords
variable
data
quantization data
length segments
transient
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.)
Active
Application number
DE602007010158T
Other languages
English (en)
Inventor
Yuli You
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.)
Digital Rise Technology Co Ltd
Original Assignee
Digital Rise Technology Co Ltd
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 US11/558,917 external-priority patent/US8744862B2/en
Priority claimed from US11/689,371 external-priority patent/US7937271B2/en
Application filed by Digital Rise Technology Co Ltd filed Critical Digital Rise Technology Co Ltd
Publication of DE602007010158D1 publication Critical patent/DE602007010158D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • G10L19/025—Detection of transients or attacks for time/frequency resolution switching
    • 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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • 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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • 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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G10L19/038—Vector quantisation, e.g. TwinVQ audio

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Amplifiers (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
DE602007010158T 2006-08-18 2007-08-17 Audiodekodierung Active DE602007010158D1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US82276006P 2006-08-18 2006-08-18
US11/558,917 US8744862B2 (en) 2006-08-18 2006-11-12 Window selection based on transient detection and location to provide variable time resolution in processing frame-based data
US11/669,346 US7895034B2 (en) 2004-09-17 2007-01-31 Audio encoding system
US11/689,371 US7937271B2 (en) 2004-09-17 2007-03-21 Audio decoding using variable-length codebook application ranges
PCT/CN2007/002490 WO2008022565A1 (en) 2006-08-18 2007-08-17 Audio decoding

Publications (1)

Publication Number Publication Date
DE602007010158D1 true DE602007010158D1 (de) 2010-12-09

Family

ID=39110402

Family Applications (2)

Application Number Title Priority Date Filing Date
DE602007010160T Active DE602007010160D1 (de) 2006-08-18 2007-08-17 Audiokodierungssystem
DE602007010158T Active DE602007010158D1 (de) 2006-08-18 2007-08-17 Audiodekodierung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE602007010160T Active DE602007010160D1 (de) 2006-08-18 2007-08-17 Audiokodierungssystem

Country Status (7)

Country Link
US (1) US7895034B2 (de)
EP (2) EP2054883B1 (de)
JP (2) JP5162589B2 (de)
KR (3) KR101401224B1 (de)
AT (2) ATE486346T1 (de)
DE (2) DE602007010160D1 (de)
WO (1) WO2008022564A1 (de)

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US8332216B2 (en) * 2006-01-12 2012-12-11 Stmicroelectronics Asia Pacific Pte., Ltd. System and method for low power stereo perceptual audio coding using adaptive masking threshold
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
EP2210252B1 (de) 2007-11-12 2017-05-24 The Nielsen Company (US), LLC Verfahren und vorrichtung für audiowasserzeichenmarkierung sowie erkennung und extraktion von wasserzeichen
US8423371B2 (en) * 2007-12-21 2013-04-16 Panasonic Corporation Audio encoder, decoder, and encoding method thereof
US8457951B2 (en) * 2008-01-29 2013-06-04 The Nielsen Company (Us), Llc Methods and apparatus for performing variable black length watermarking of media
CN102081926B (zh) * 2009-11-27 2013-06-05 中兴通讯股份有限公司 格型矢量量化音频编解码方法和系统
CN102222505B (zh) * 2010-04-13 2012-12-19 中兴通讯股份有限公司 可分层音频编解码方法系统及瞬态信号可分层编解码方法
CN102419977B (zh) * 2011-01-14 2013-10-02 展讯通信（上海）有限公司 瞬态音频信号的判别方法
PL3154057T3 (pl) 2011-04-05 2019-04-30 Nippon Telegraph & Telephone Dekodowanie sygnału akustycznego
CA2961336C (en) * 2013-01-29 2021-09-28 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoders, audio decoders, systems, methods and computer programs using an increased temporal resolution in temporal proximity of onsets or offsets of fricatives or affricates
SG10201710019SA (en) * 2013-05-24 2018-01-30 Dolby Int Ab Audio Encoder And Decoder
JP2017009663A (ja) * 2015-06-17 2017-01-12 ソニー株式会社 録音装置、録音システム、および、録音方法
WO2017064264A1 (en) * 2015-10-15 2017-04-20 Huawei Technologies Co., Ltd. Method and appratus for sinusoidal encoding and decoding
US9762382B1 (en) * 2016-02-18 2017-09-12 Teradyne, Inc. Time-aligning a signal
CN105790854B (zh) * 2016-03-01 2018-11-20 济南中维世纪科技有限公司 一种基于声波的短距离数据传输方法及装置
CN114499690B (zh) * 2021-12-27 2023-09-29 北京遥测技术研究所 一种星载激光通信终端地面模拟装置

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JP3413691B2 (ja) * 1994-08-16 2003-06-03 ソニー株式会社 情報符号化方法及び装置、情報復号化方法及び装置、並びに情報記録媒体及び情報送信方法
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
US5812971A (en) * 1996-03-22 1998-09-22 Lucent Technologies Inc. Enhanced joint stereo coding method using temporal envelope shaping
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US7630902B2 (en) * 2004-09-17 2009-12-08 Digital Rise Technology Co., Ltd. Apparatus and methods for digital audio coding using codebook application ranges

Also Published As

Publication number Publication date
EP2054881A4 (de) 2009-09-09
KR20090041439A (ko) 2009-04-28
JP2010501090A (ja) 2010-01-14
WO2008022564A1 (en) 2008-02-28
JP2010501089A (ja) 2010-01-14
ATE486346T1 (de) 2010-11-15
EP2054881A1 (de) 2009-05-06
ATE486347T1 (de) 2010-11-15
EP2054881B1 (de) 2010-10-27
EP2054883A1 (de) 2009-05-06
KR101168473B1 (ko) 2012-07-26
JP5162588B2 (ja) 2013-03-13
EP2054883A4 (de) 2009-09-09
KR101401224B1 (ko) 2014-05-28
US7895034B2 (en) 2011-02-22
KR20120032039A (ko) 2012-04-04
EP2054883B1 (de) 2010-10-27
KR101161921B1 (ko) 2012-07-03
DE602007010160D1 (de) 2010-12-09
KR20090042972A (ko) 2009-05-04
US20070124141A1 (en) 2007-05-31
JP5162589B2 (ja) 2013-03-13

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