BRPI0716004A8 - banco de filtros ["filterbank"] de análise, banco de filtros de síntese, codificador, decodificador, mixador e sistema de conferência - Google Patents

banco de filtros ["filterbank"] de análise, banco de filtros de síntese, codificador, decodificador, mixador e sistema de conferência Download PDF

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Publication number
BRPI0716004A8
BRPI0716004A8 BRPI0716004A BRPI0716004A BRPI0716004A8 BR PI0716004 A8 BRPI0716004 A8 BR PI0716004A8 BR PI0716004 A BRPI0716004 A BR PI0716004A BR PI0716004 A BRPI0716004 A BR PI0716004A BR PI0716004 A8 BRPI0716004 A8 BR PI0716004A8
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BR
Brazil
Prior art keywords
input
filterbank
frame
windowed
decoder
Prior art date
Application number
BRPI0716004A
Other languages
English (en)
Inventor
Grill Bernhard
Schuller Gerhard
Schnell Markus
Geiger Ralf
Original Assignee
Fraunhofer Ges Forschung
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Publication date
Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Priority to BR122019020171-4A priority Critical patent/BR122019020171B1/pt
Publication of BRPI0716004A2 publication Critical patent/BRPI0716004A2/pt
Publication of BRPI0716004A8 publication Critical patent/BRPI0716004A8/pt
Publication of BRPI0716004B1 publication Critical patent/BRPI0716004B1/pt

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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
    • 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
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • G10L19/135—Vector sum excited linear prediction [VSELP]

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Facsimile Transmission Control (AREA)
  • Telephonic Communication Services (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Complex Calculations (AREA)
  • Image Processing (AREA)
  • Noise Elimination (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

"banco de filtros ["filterbank"] de análise, banco de filtros de síntese, codificador, decodificador, mixador e sistema de conferência".uma configuração de um banco de filtros de análise para filtrar uma pluralidade de quadros de entrada de domínio de tempo, em que um quadro de entrada consiste de um número de amostras de entrada ordenadas, compreende um ponto de janela configurado para gerar uma pluralidade de quadros com janelas, em que um quadro com janela consiste de uma pluralidade de amostras com janelas, em que o ponto de janela é configurado para processar a pluralidade de quadros de entrada de maneira sobreposta, usando um valor de avanço de amostra, em que o valor de avanço de amostra é menor do que o número de amostra de entrada ordenadas de um quadro de entrada dividido por dois, e umconversor tempo/frequência configurado para ofrnecer um quadro de saída que consista de um número de valores de saída, em que um quadro de saída é uma representação espectral de um quadro com janela.
BRPI0716004-6A 2006-10-18 2007-08-29 banco de filtros ["filterbank"] de análise, banco de filtros de síntese, codificador, decodificador, mixador e sistema de conferência BRPI0716004B1 (pt)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BR122019020171-4A BR122019020171B1 (pt) 2006-10-18 2007-08-29 Banco de filtros [filterbank] de análise, banco de filtros de síntese, codificador, decodificador, mixador e sistema de conferência

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US86203206P 2006-10-18 2006-10-18
US60/862,032 2006-10-18
US11/744,641 US8036903B2 (en) 2006-10-18 2007-05-04 Analysis filterbank, synthesis filterbank, encoder, de-coder, mixer and conferencing system
US11/744,641 2007-05-04
PCT/EP2007/007553 WO2008046468A2 (en) 2006-10-18 2007-08-29 Analysis filterbank, synthesis filterbank, encoder, decoder, mixer and conferencing system

Publications (3)

Publication Number Publication Date
BRPI0716004A2 BRPI0716004A2 (pt) 2013-07-30
BRPI0716004A8 true BRPI0716004A8 (pt) 2019-10-08
BRPI0716004B1 BRPI0716004B1 (pt) 2020-11-17

Family

ID=38904615

Family Applications (2)

Application Number Title Priority Date Filing Date
BR122019020171-4A BR122019020171B1 (pt) 2006-10-18 2007-08-29 Banco de filtros [filterbank] de análise, banco de filtros de síntese, codificador, decodificador, mixador e sistema de conferência
BRPI0716004-6A BRPI0716004B1 (pt) 2006-10-18 2007-08-29 banco de filtros ["filterbank"] de análise, banco de filtros de síntese, codificador, decodificador, mixador e sistema de conferência

Family Applications Before (1)

Application Number Title Priority Date Filing Date
BR122019020171-4A BR122019020171B1 (pt) 2006-10-18 2007-08-29 Banco de filtros [filterbank] de análise, banco de filtros de síntese, codificador, decodificador, mixador e sistema de conferência

Country Status (21)

Country Link
US (6) US8036903B2 (pt)
EP (5) EP2113911B1 (pt)
JP (5) JP5546863B2 (pt)
KR (3) KR101162462B1 (pt)
CN (4) CN102243875B (pt)
AT (3) ATE539432T1 (pt)
AU (3) AU2007312696B2 (pt)
BR (2) BR122019020171B1 (pt)
CA (3) CA2667059C (pt)
ES (5) ES2531568T3 (pt)
IL (4) IL197757A (pt)
MX (1) MX2009004046A (pt)
MY (4) MY164995A (pt)
NO (5) NO342445B1 (pt)
PL (5) PL2113910T3 (pt)
PT (1) PT2884490T (pt)
RU (1) RU2426178C2 (pt)
SG (2) SG174836A1 (pt)
TW (1) TWI355647B (pt)
WO (1) WO2008046468A2 (pt)
ZA (1) ZA200901650B (pt)

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KR20090076924A (ko) 2009-07-13
WO2008046468A3 (en) 2008-06-26
ATE539432T1 (de) 2012-01-15
CN102243874A (zh) 2011-11-16
NO342515B1 (no) 2018-06-04
EP2884490A1 (en) 2015-06-17
IL226224A (en) 2016-02-29
EP2113911A3 (en) 2009-11-18
EP2113911B1 (en) 2011-12-28
AU2007312696B2 (en) 2011-04-21
CA2782476C (en) 2016-02-23
JP5859504B2 (ja) 2016-02-10
JP2010507111A (ja) 2010-03-04
NO20170982A1 (no) 2009-05-14
EP2113910B1 (en) 2011-09-21
EP2113910A1 (en) 2009-11-04
RU2009109129A (ru) 2010-11-27
IL226223A0 (en) 2013-06-27
MY155486A (en) 2015-10-30
USRE45294E1 (en) 2014-12-16
CN102243873A (zh) 2011-11-16
IL197757A0 (en) 2009-12-24
HK1128058A1 (en) 2009-10-16
AU2011201331A1 (en) 2011-04-14
JP2013228740A (ja) 2013-11-07
NO342514B1 (no) 2018-06-04
CN102243874B (zh) 2013-04-24
ATE554480T1 (de) 2012-05-15
KR101162462B1 (ko) 2012-07-04
JP5700714B2 (ja) 2015-04-15
PL2378516T3 (pl) 2015-06-30
CN101529502B (zh) 2012-07-25
WO2008046468A2 (en) 2008-04-24
CA2782609C (en) 2016-10-04
JP2014059570A (ja) 2014-04-03
KR20110049886A (ko) 2011-05-12
PL2074615T3 (pl) 2012-10-31
CA2667059A1 (en) 2008-04-24
RU2426178C2 (ru) 2011-08-10
MX2009004046A (es) 2009-04-27
USRE45276E1 (en) 2014-12-02
MY153289A (en) 2015-01-29
ES2374014T3 (es) 2012-02-13
USRE45526E1 (en) 2015-05-19
NO342516B1 (no) 2018-06-04
BRPI0716004A2 (pt) 2013-07-30
NO20170988A1 (no) 2009-05-14
NO20170986A1 (no) 2009-05-14
HK1138674A1 (en) 2010-08-27
PL2884490T3 (pl) 2016-12-30
IL226224A0 (en) 2013-06-27
PT2884490T (pt) 2016-10-13
NO342476B1 (no) 2018-05-28
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