NO20064021L - Prediktiv koding - Google Patents

Prediktiv koding

Info

Publication number
NO20064021L
NO20064021L NO20064021A NO20064021A NO20064021L NO 20064021 L NO20064021 L NO 20064021L NO 20064021 A NO20064021 A NO 20064021A NO 20064021 A NO20064021 A NO 20064021A NO 20064021 L NO20064021 L NO 20064021L
Authority
NO
Norway
Prior art keywords
information signal
predictive
adaption
adaption rate
predictive coding
Prior art date
Application number
NO20064021A
Other languages
English (en)
Other versions
NO338722B1 (no
Inventor
Manfred Lutzky
Gerald Schuller
Ulrich Kramer
Stefan Wabnik
Jens Hirschfeld
Original Assignee
Fraunhofer Ges Forschung
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 Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of NO20064021L publication Critical patent/NO20064021L/no
Publication of NO338722B1 publication Critical patent/NO338722B1/no

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
    • G10L19/04—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 predictive techniques
    • 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
    • G10L19/04—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 predictive techniques
    • G10L19/16—Vocoder architecture
    • 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
    • G10L19/04—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 predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0013—Codebook search algorithms
    • G10L2019/0014—Selection criteria for distances

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

Oppfinnelsen er basert på en adaptiv prediksjon-salgoritme som kan bli kontrollert med en hastighetskoeffisient for å virke ved en første adapsjonshastighet og med en første grad av presisjon av adapsjon og grad av presisjon av prediksjon i hendelsen hvor hastighetskoeffisienten har en første verdi og med en andre grad av presisjon av adapsjon, som er lavere enn den første, og med en grad av presisjon av prediksjon som er høyere enn den første i hendelsen hvor hastighetsparameteren har en andre verdi, hvori periodene av adapsjon som inntreffer etter resettingstidene i løpet av hvor prediksjonsfeilene til å begynne med er økt som et resultat av de ennå ikke adapterte prediksjonskoeffisienter, blir redusert ved til å begynne med å justere hastighetsparameteren til den første verdi (42) og etter en stund å justere den til den andre verdi (50). Når hastighetsparameteren er justert på ny til den andre verdi etter et spesifikt tidsrom etter resettingstidene, blir prediksjonsfeilene og restene som skal transformeres, optimalisert eller mindre enn med den første hastighetsparameterverdi.
NO20064021A 2004-02-13 2006-09-07 Prediktiv koding og dekoding NO338722B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004007185A DE102004007185B3 (de) 2004-02-13 2004-02-13 Prädiktives Codierungsschema
PCT/EP2004/014496 WO2005083683A1 (de) 2004-02-13 2004-12-20 Prädiktives codierungsschema

Publications (2)

Publication Number Publication Date
NO20064021L true NO20064021L (no) 2006-09-07
NO338722B1 NO338722B1 (no) 2016-10-10

Family

ID=34625823

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20064021A NO338722B1 (no) 2004-02-13 2006-09-07 Prediktiv koding og dekoding

Country Status (17)

Country Link
US (1) US7386446B2 (no)
EP (1) EP1700293B1 (no)
JP (1) JP4351260B2 (no)
KR (1) KR100852483B1 (no)
CN (1) CN1914670B (no)
AT (1) ATE362169T1 (no)
AU (1) AU2004316541B2 (no)
BR (1) BRPI0418389B1 (no)
CA (1) CA2556024C (no)
DE (2) DE102004007185B3 (no)
ES (1) ES2285551T3 (no)
HK (1) HK1094080A1 (no)
IL (1) IL177124A (no)
NO (1) NO338722B1 (no)
PT (1) PT1700293E (no)
RU (1) RU2345426C2 (no)
WO (1) WO2005083683A1 (no)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8218634B2 (en) * 2005-01-13 2012-07-10 Ntt Docomo, Inc. Nonlinear, in-the-loop, denoising filter for quantization noise removal for hybrid video compression
US11128601B2 (en) * 2007-08-28 2021-09-21 Spencer Health Solutions, Llc Methods, systems, and computer program products for compiling information for use in a command script for a product dispensing system
EP2466580A1 (en) 2010-12-14 2012-06-20 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Encoder and method for predictively encoding, decoder and method for decoding, system and method for predictively encoding and decoding and predictively encoded information signal
CN102436215B (zh) * 2011-11-24 2013-06-05 重庆大学 数控冲花打孔机并行控制加工时间虚拟计算方法
JP5994073B2 (ja) * 2013-01-31 2016-09-21 株式会社アクセル 音声信号圧縮装置及び音声信号圧縮方法
ES2710338T3 (es) 2016-05-10 2019-04-24 Von Sobbe Hans Ulrich Sistema de análisis

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US535299A (en) * 1895-03-05 Combined telegraph and telephone system
US3631520A (en) * 1968-08-19 1971-12-28 Bell Telephone Labor Inc Predictive coding of speech signals
US3931596A (en) * 1974-09-30 1976-01-06 Bell Telephone Laboratories, Incorporated Adaptive quantizer apparatus using training mode
US4475227A (en) * 1982-04-14 1984-10-02 At&T Bell Laboratories Adaptive prediction
US4518950A (en) * 1982-10-22 1985-05-21 At&T Bell Laboratories Digital code converter
US4751736A (en) * 1985-01-31 1988-06-14 Communications Satellite Corporation Variable bit rate speech codec with backward-type prediction and quantization
US4677423A (en) * 1986-01-06 1987-06-30 American Telephone & Telegraph, At&T Bell Laboratories ADPCM coder-decoder including partial band energy transition detection
DE3714589A1 (de) 1987-05-01 1988-11-10 Standard Elektrik Lorenz Ag Videosignal-codierer mit dpcm und adaptiver praediktion
EP0649557B1 (en) * 1993-05-05 1999-08-25 Koninklijke Philips Electronics N.V. Transmission system comprising at least a coder
US5535299A (en) * 1993-11-02 1996-07-09 Pacific Communication Sciences, Inc. Adaptive error control for ADPCM speech coders
JP3224465B2 (ja) * 1993-12-22 2001-10-29 シャープ株式会社 画像符号化装置
GB9509831D0 (en) * 1995-05-15 1995-07-05 Gerzon Michael A Lossless coding method for waveform data
DE19526366A1 (de) 1995-07-20 1997-01-23 Bosch Gmbh Robert Verfahren zur Redundanzreduktion bei der Codierung von mehrkanaligen Signalen und Vorrichtung zur Dekodierung von redundanzreduzierten, mehrkanaligen Signalen
GB2318029B (en) 1996-10-01 2000-11-08 Nokia Mobile Phones Ltd Audio coding method and apparatus
JP3348612B2 (ja) * 1996-10-31 2002-11-20 日本ビクター株式会社 ブロック間予測符号化装置、ブロック間予測復号化装置、ブロック間予測符号化方法、ブロック間予測復号化方法、及びブロック間予測符号化復号化装置
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Also Published As

Publication number Publication date
DE502004003807D1 (de) 2007-06-21
IL177124A (en) 2011-04-28
BRPI0418389A (pt) 2007-05-22
NO338722B1 (no) 2016-10-10
RU2006132731A (ru) 2008-03-20
HK1094080A1 (en) 2007-03-16
BRPI0418389B1 (pt) 2019-06-25
RU2345426C2 (ru) 2009-01-27
CN1914670B (zh) 2011-03-23
DE102004007185B3 (de) 2005-06-30
KR100852483B1 (ko) 2008-08-18
ES2285551T3 (es) 2007-11-16
EP1700293A1 (de) 2006-09-13
CA2556024C (en) 2010-08-10
JP2007534229A (ja) 2007-11-22
US20070016409A1 (en) 2007-01-18
CA2556024A1 (en) 2005-09-09
JP4351260B2 (ja) 2009-10-28
ATE362169T1 (de) 2007-06-15
CN1914670A (zh) 2007-02-14
KR20070085059A (ko) 2007-08-27
US7386446B2 (en) 2008-06-10
EP1700293B1 (de) 2007-05-09
WO2005083683A1 (de) 2005-09-09
BRPI0418389A8 (pt) 2018-04-03
AU2004316541B2 (en) 2008-04-24
PT1700293E (pt) 2007-08-21
IL177124A0 (en) 2006-12-10
AU2004316541A1 (en) 2005-09-09

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