BRPI0418389A - esquema de codificação preditiva - Google Patents

esquema de codificação preditiva

Info

Publication number
BRPI0418389A
BRPI0418389A BRPI0418389-4A BRPI0418389A BRPI0418389A BR PI0418389 A BRPI0418389 A BR PI0418389A BR PI0418389 A BRPI0418389 A BR PI0418389A BR PI0418389 A BRPI0418389 A BR PI0418389A
Authority
BR
Brazil
Prior art keywords
information signal
predictive
adaption
adaption rate
predictive coding
Prior art date
Application number
BRPI0418389-4A
Other languages
English (en)
Inventor
Gerald Schuller
Manfred Lutzky
Ulrich Kromer
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 BRPI0418389A publication Critical patent/BRPI0418389A/pt
Publication of BRPI0418389A8 publication Critical patent/BRPI0418389A8/pt
Publication of BRPI0418389B1 publication Critical patent/BRPI0418389B1/pt

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)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

ESQUEMA DE CODIFICAçãO PREDITIVA Se um algaritmo de predição adaptativa controlável por um coeficiente de velocidade parte para operar com uma primeira velocidade de adaptação e uma primeira precisão de adaptação e uma primeira precisão de predição de acompanhamento, no caso em que o coeficiente de velocidade tem um primeiro valor e para operar com uma segunda, comparada com a primeira, menor velocidade de adaptação e uma segunda, mas comparada com a primeira, maior precisão no caso em que o parâmetro de velocidade tem um segundo valor, as durações da adaptação que ocorrem após os tempos de reset, onde os erros da predição são primeiramente aumentados devido aos, ainda não adaptados coeficientes de predição, podem ser reduzidas por um primeiro ajuste do parâmetro de velocidade ao primeiro valor (42) e, após um determinado tempo, ao segundo valor (50). Após o parâmetro de velocidade ter novamente sido ajustado ao segundo valor depois de uma duração predeterminada, após os tempos de reset, os erros da predição e portanto os resíduos a serem transmitidos são mais otimizados ou são menores do que seria possível com o primeiro valor do parâmetro de velocidade.
BRPI0418389-4A 2004-02-13 2004-12-20 Esquema de codificação preditiva BRPI0418389B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102004007185A DE102004007185B3 (de) 2004-02-13 2004-02-13 Prädiktives Codierungsschema
DE102004007185.3 2004-02-13
PCT/EP2004/014496 WO2005083683A1 (de) 2004-02-13 2004-12-20 Prädiktives codierungsschema

Publications (3)

Publication Number Publication Date
BRPI0418389A true BRPI0418389A (pt) 2007-05-22
BRPI0418389A8 BRPI0418389A8 (pt) 2018-04-03
BRPI0418389B1 BRPI0418389B1 (pt) 2019-06-25

Family

ID=34625823

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0418389-4A BRPI0418389B1 (pt) 2004-02-13 2004-12-20 Esquema de codificação preditiva

Country Status (17)

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

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* 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
EP3244278B1 (en) * 2016-05-10 2018-12-26 Hans-Ulrich von Sobbe Analysis system

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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
UA41892C2 (uk) * 1993-05-05 2001-10-15 Конінклійке Філіпс Електронікс Н.В. Система передачі, термінальний пристрій, кодувальний пристрій, декодувальний пристрій і адаптивний фільтр
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
RU2345426C2 (ru) 2009-01-27
JP2007534229A (ja) 2007-11-22
KR20070085059A (ko) 2007-08-27
CA2556024C (en) 2010-08-10
JP4351260B2 (ja) 2009-10-28
PT1700293E (pt) 2007-08-21
BRPI0418389A8 (pt) 2018-04-03
CN1914670A (zh) 2007-02-14
DE102004007185B3 (de) 2005-06-30
KR100852483B1 (ko) 2008-08-18
CN1914670B (zh) 2011-03-23
HK1094080A1 (en) 2007-03-16
NO338722B1 (no) 2016-10-10
CA2556024A1 (en) 2005-09-09
IL177124A0 (en) 2006-12-10
DE502004003807D1 (de) 2007-06-21
US20070016409A1 (en) 2007-01-18
NO20064021L (no) 2006-09-07
WO2005083683A1 (de) 2005-09-09
BRPI0418389B1 (pt) 2019-06-25
EP1700293B1 (de) 2007-05-09
ES2285551T3 (es) 2007-11-16
ATE362169T1 (de) 2007-06-15
IL177124A (en) 2011-04-28
RU2006132731A (ru) 2008-03-20
US7386446B2 (en) 2008-06-10
AU2004316541A1 (en) 2005-09-09
AU2004316541B2 (en) 2008-04-24
EP1700293A1 (de) 2006-09-13

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Legal Events

Date Code Title Description
B15K Others concerning applications: alteration of classification

Ipc: G10L 19/24 (2013.01), G10L 19/04 (2013.01)

B15K Others concerning applications: alteration of classification

Ipc: G10L 19/24 (2013.01), G10L 19/04 (2013.01), G10L 1

B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 25/06/2019, OBSERVADAS AS CONDICOES LEGAIS. (CO) 10 (DEZ) ANOS CONTADOS A PARTIR DE 25/06/2019, OBSERVADAS AS CONDICOES LEGAIS