BRPI0811384A2 - "codificador de áudio para codificar um sinal de áudio tendo uma porção tipo impulso e porção fixa, métodos de codificação, decodificador, método de decodificação, e sinal de áudio codificado" - Google Patents

"codificador de áudio para codificar um sinal de áudio tendo uma porção tipo impulso e porção fixa, métodos de codificação, decodificador, método de decodificação, e sinal de áudio codificado"

Info

Publication number
BRPI0811384A2
BRPI0811384A2 BRPI0811384A BRPI0811384A BRPI0811384A2 BR PI0811384 A2 BRPI0811384 A2 BR PI0811384A2 BR PI0811384 A BRPI0811384 A BR PI0811384A BR PI0811384 A BRPI0811384 A BR PI0811384A BR PI0811384 A2 BRPI0811384 A2 BR PI0811384A2
Authority
BR
Brazil
Prior art keywords
audio signal
encoding
decoder
fixed portion
decoding method
Prior art date
Application number
BRPI0811384A
Other languages
English (en)
Inventor
Grill Bernhard
Guillaume Fuchs
Ralf Geiger
Juergen Herre
Nikolaus Rettelbach
Bayer Stefan
Kraemer Ulrich
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 BRPI0811384A2 publication Critical patent/BRPI0811384A2/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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
    • 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
    • G10L19/04—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
    • G10L19/08—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
BRPI0811384A 2007-06-11 2008-06-05 "codificador de áudio para codificar um sinal de áudio tendo uma porção tipo impulso e porção fixa, métodos de codificação, decodificador, método de decodificação, e sinal de áudio codificado" BRPI0811384A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US94325307P 2007-06-11 2007-06-11
US94350507P 2007-06-12 2007-06-12
PCT/EP2008/004496 WO2008151755A1 (en) 2007-06-11 2008-06-05 Audio encoder for encoding an audio signal having an impulse- like portion and stationary portion, encoding methods, decoder, decoding method; and encoded audio signal

Publications (1)

Publication Number Publication Date
BRPI0811384A2 true BRPI0811384A2 (pt) 2017-08-01

Family

ID=39709533

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0811384A BRPI0811384A2 (pt) 2007-06-11 2008-06-05 "codificador de áudio para codificar um sinal de áudio tendo uma porção tipo impulso e porção fixa, métodos de codificação, decodificador, método de decodificação, e sinal de áudio codificado"

Country Status (17)

Country Link
US (1) US8706480B2 (pt)
EP (1) EP2165328B1 (pt)
JP (1) JP5686369B2 (pt)
KR (1) KR101196506B1 (pt)
CN (1) CN101743586B (pt)
AR (1) AR066959A1 (pt)
AU (1) AU2008261287B2 (pt)
BR (1) BRPI0811384A2 (pt)
CA (1) CA2691993C (pt)
ES (1) ES2663269T3 (pt)
MX (1) MX2009013519A (pt)
MY (1) MY146431A (pt)
PL (1) PL2165328T3 (pt)
PT (1) PT2165328T (pt)
RU (1) RU2439721C2 (pt)
TW (1) TWI371744B (pt)
WO (1) WO2008151755A1 (pt)

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AR066959A1 (es) 2009-09-23
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JP2010530079A (ja) 2010-09-02
AU2008261287A1 (en) 2008-12-18
KR20100024414A (ko) 2010-03-05
EP2165328B1 (en) 2018-01-17
MY146431A (en) 2012-08-15
RU2439721C2 (ru) 2012-01-10
TW200912896A (en) 2009-03-16
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US8706480B2 (en) 2014-04-22
PL2165328T3 (pl) 2018-06-29
CN101743586A (zh) 2010-06-16
CN101743586B (zh) 2012-10-17
RU2009143665A (ru) 2011-07-27
AU2008261287B2 (en) 2010-12-16
PT2165328T (pt) 2018-04-24
ES2663269T3 (es) 2018-04-11
CA2691993C (en) 2015-01-27
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EP2165328A1 (en) 2010-03-24
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JP5686369B2 (ja) 2015-03-18

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