BR112014000611A2 - adaptações de janelas de ponderação de análise ou de síntese para uma codificação ou decodificação por transformada - Google Patents

adaptações de janelas de ponderação de análise ou de síntese para uma codificação ou decodificação por transformada

Info

Publication number
BR112014000611A2
BR112014000611A2 BR112014000611A BR112014000611A BR112014000611A2 BR 112014000611 A2 BR112014000611 A2 BR 112014000611A2 BR 112014000611 A BR112014000611 A BR 112014000611A BR 112014000611 A BR112014000611 A BR 112014000611A BR 112014000611 A2 BR112014000611 A2 BR 112014000611A2
Authority
BR
Brazil
Prior art keywords
decoding
analysis
adaptations
synthesis
transform encoding
Prior art date
Application number
BR112014000611A
Other languages
English (en)
Other versions
BR112014000611B1 (pt
Inventor
Faure Julien
Philippe Pierrick
Original Assignee
Orange
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 Orange filed Critical Orange
Priority to BR122021011683-0A priority Critical patent/BR122021011683B1/pt
Priority to BR122021011692-0A priority patent/BR122021011692B1/pt
Publication of BR112014000611A2 publication Critical patent/BR112014000611A2/pt
Publication of BR112014000611B1 publication Critical patent/BR112014000611B1/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
    • G10L19/02—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
    • 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
    • G10L19/0212—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 using orthogonal transformation
    • 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
    • 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
    • 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
    • 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
    • H03M7/3002—Conversion to or from differential modulation
    • H03M7/3044—Conversion to or from differential modulation with several bits only, i.e. the difference between successive samples being coded by more than one bit, e.g. differential pulse code modulation [DPCM]

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

resumo patente de invenção: "adaptações de janelas de ponderação de análise ou de síntese para uma codificação ou decodificação por transformada". a presente invenção refere-se a processo de codificação ou de decodificação por transformada de um sinal áudio-numérico, utilizando janelas de ponderação de análise (ha) ou de síntese (hs) aplicadas a tramas de amostras. o processo é tal que comporta uma amostragem irregular (e10) de uma janela inicial prevista para uma transformada de tamanho inicial n determinada, para aplicar uma transformação secundária de tamanho m diferente de n. a invenção se refere também a um dispositivo apto para aplicar o processo acima.
BR112014000611-3A 2011-07-12 2012-07-09 Processo e dispositivo de codificação ou de decodificação por transformada de um sinal áudio-numérico BR112014000611B1 (pt)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BR122021011683-0A BR122021011683B1 (pt) 2011-07-12 2012-07-09 Processo e dispositivo de codificação por transformada de um sinal áudio-digital utilizando janelas de ponderação de análise aplicadas a tramas de amostras
BR122021011692-0A BR122021011692B1 (pt) 2011-07-12 2012-07-09 Processo e dispositivo de decodificação por transformada de um sinal áudio-digital, utilizando janelas de ponderação de síntese aplicadas a tramas de amostras

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1156356 2011-07-12
FR1156356A FR2977969A1 (fr) 2011-07-12 2011-07-12 Adaptation de fenetres de ponderation d'analyse ou de synthese pour un codage ou decodage par transformee
PCT/FR2012/051622 WO2013007943A1 (fr) 2011-07-12 2012-07-09 Adaptations de fenetres de ponderation d'analyse ou de synthese pour un codage ou decodage par transformee

Publications (2)

Publication Number Publication Date
BR112014000611A2 true BR112014000611A2 (pt) 2017-02-14
BR112014000611B1 BR112014000611B1 (pt) 2021-09-08

Family

ID=46639596

Family Applications (3)

Application Number Title Priority Date Filing Date
BR122021011683-0A BR122021011683B1 (pt) 2011-07-12 2012-07-09 Processo e dispositivo de codificação por transformada de um sinal áudio-digital utilizando janelas de ponderação de análise aplicadas a tramas de amostras
BR112014000611-3A BR112014000611B1 (pt) 2011-07-12 2012-07-09 Processo e dispositivo de codificação ou de decodificação por transformada de um sinal áudio-numérico
BR122021011692-0A BR122021011692B1 (pt) 2011-07-12 2012-07-09 Processo e dispositivo de decodificação por transformada de um sinal áudio-digital, utilizando janelas de ponderação de síntese aplicadas a tramas de amostras

Family Applications Before (1)

Application Number Title Priority Date Filing Date
BR122021011683-0A BR122021011683B1 (pt) 2011-07-12 2012-07-09 Processo e dispositivo de codificação por transformada de um sinal áudio-digital utilizando janelas de ponderação de análise aplicadas a tramas de amostras

Family Applications After (1)

Application Number Title Priority Date Filing Date
BR122021011692-0A BR122021011692B1 (pt) 2011-07-12 2012-07-09 Processo e dispositivo de decodificação por transformada de um sinal áudio-digital, utilizando janelas de ponderação de síntese aplicadas a tramas de amostras

Country Status (12)

Country Link
US (2) US9368121B2 (pt)
EP (1) EP2732448B1 (pt)
JP (1) JP6177239B2 (pt)
KR (3) KR102089281B1 (pt)
CN (1) CN103814406B (pt)
BR (3) BR122021011683B1 (pt)
CA (1) CA2841303C (pt)
ES (1) ES2556268T3 (pt)
FR (1) FR2977969A1 (pt)
MX (1) MX2014000409A (pt)
RU (1) RU2607230C2 (pt)
WO (1) WO2013007943A1 (pt)

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EP3483883A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio coding and decoding with selective postfiltering
EP3483886A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Selecting pitch lag
EP3483882A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Controlling bandwidth in encoders and/or decoders
EP3483878A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio decoder supporting a set of different loss concealment tools
WO2019091576A1 (en) 2017-11-10 2019-05-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoders, audio decoders, methods and computer programs adapting an encoding and decoding of least significant bits
EP3483880A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Temporal noise shaping
EP3483884A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Signal filtering
WO2019091573A1 (en) 2017-11-10 2019-05-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for encoding and decoding an audio signal using downsampling or interpolation of scale parameters
EP3483879A1 (en) * 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Analysis/synthesis windowing function for modulated lapped transformation

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Also Published As

Publication number Publication date
CA2841303A1 (fr) 2013-01-17
CA2841303C (fr) 2021-01-19
KR102089281B1 (ko) 2020-03-16
JP6177239B2 (ja) 2017-08-09
MX2014000409A (es) 2014-09-15
EP2732448B1 (fr) 2015-09-09
JP2014524048A (ja) 2014-09-18
KR102089273B1 (ko) 2020-03-16
CN103814406A (zh) 2014-05-21
WO2013007943A1 (fr) 2013-01-17
RU2014104488A (ru) 2015-08-20
US9368121B2 (en) 2016-06-14
KR20190124331A (ko) 2019-11-04
ES2556268T3 (es) 2016-01-14
BR112014000611B1 (pt) 2021-09-08
US20170011747A1 (en) 2017-01-12
US10373622B2 (en) 2019-08-06
BR122021011683B1 (pt) 2022-03-22
EP2732448A1 (fr) 2014-05-21
FR2977969A1 (fr) 2013-01-18
CN103814406B (zh) 2016-05-11
KR20140050056A (ko) 2014-04-28
US20140142930A1 (en) 2014-05-22
RU2607230C2 (ru) 2017-01-10
KR20190124332A (ko) 2019-11-04
BR122021011692B1 (pt) 2022-03-22

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Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 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: 20 (VINTE) ANOS CONTADOS A PARTIR DE 09/07/2012, OBSERVADAS AS CONDICOES LEGAIS.