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BRPI0914032A2 - decodificador de áudio, codificador de áudio, método para decodificar um sinal de áudio, método para codificar um sinal de áudio, programa de computador e sinal de áudio - Google Patents

decodificador de áudio, codificador de áudio, método para decodificar um sinal de áudio, método para codificar um sinal de áudio, programa de computador e sinal de áudio

Info

Publication number
BRPI0914032A2
BRPI0914032A2 BRPI0914032A BRPI0914032A BRPI0914032A2 BR PI0914032 A2 BRPI0914032 A2 BR PI0914032A2 BR PI0914032 A BRPI0914032 A BR PI0914032A BR PI0914032 A BRPI0914032 A BR PI0914032A BR PI0914032 A2 BRPI0914032 A2 BR PI0914032A2
Authority
BR
Brazil
Prior art keywords
audio
audio signal
decoding
encoding
computer program
Prior art date
Application number
BRPI0914032A
Other languages
English (en)
Inventor
Arne Borsum
Frederik Nagel
Guillaume Fuchs
Julien Robilliard
Jérémie Lecomte
Markus Multrus
Ralf Geiger
Vignesh Subbaraman
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 BRPI0914032A2 publication Critical patent/BRPI0914032A2/pt
Publication of BRPI0914032B1 publication Critical patent/BRPI0914032B1/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
    • 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
    • G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
    • 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
    • G10L19/028—Noise substitution, i.e. substituting non-tonal spectral components by noisy source
    • 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
    • G10L19/0204—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 subband decomposition
    • 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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G10L19/035—Scalar quantisation
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band

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)
BRPI0914032A 2008-10-08 2009-10-06 decodificador de áudio, codificador de áudio, método para decodificar um sinal de áudio, método para codificar um sinal de áudio, programa de computador e sinal de áudio BRPI0914032B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10382008P 2008-10-08 2008-10-08
PCT/EP2009/007169 WO2010040503A2 (en) 2008-10-08 2009-10-06 Audio decoder, audio encoder, method for decoding an audio signal, method for encoding an audio signal, computer program and audio signal

Publications (2)

Publication Number Publication Date
BRPI0914032A2 true BRPI0914032A2 (pt) 2015-11-03
BRPI0914032B1 BRPI0914032B1 (pt) 2020-04-28

Family

ID=42026731

Family Applications (1)

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BRPI0914032A BRPI0914032B1 (pt) 2008-10-08 2009-10-06 decodificador de áudio, codificador de áudio, método para decodificar um sinal de áudio, método para codificar um sinal de áudio, programa de computador e sinal de áudio

Country Status (16)

Country Link
US (1) US8494865B2 (pt)
EP (4) EP2346029B1 (pt)
JP (2) JP5253580B2 (pt)
KR (2) KR101596183B1 (pt)
CN (1) CN102177543B (pt)
AR (1) AR073732A1 (pt)
AU (1) AU2009301425B2 (pt)
BR (1) BRPI0914032B1 (pt)
CA (3) CA2871268C (pt)
MX (1) MX2011003815A (pt)
MY (1) MY157453A (pt)
PL (2) PL2346030T3 (pt)
RU (1) RU2543302C2 (pt)
TW (1) TWI419147B (pt)
WO (1) WO2010040503A2 (pt)
ZA (1) ZA201102476B (pt)

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CN102177543B (zh) 2013-05-15
KR20140085582A (ko) 2014-07-07
TW201030735A (en) 2010-08-16
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JP5665837B2 (ja) 2015-02-04
CA2871252C (en) 2015-11-03
CA2739654C (en) 2015-03-17
CA2739654A1 (en) 2010-04-15
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EP2346029A1 (en) 2011-07-20
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CA2871268A1 (en) 2010-01-14
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