PT2301019T - Codificador de áudio e descodificador de áudio - Google Patents

Codificador de áudio e descodificador de áudio

Info

Publication number
PT2301019T
PT2301019T PT97766240T PT09776624T PT2301019T PT 2301019 T PT2301019 T PT 2301019T PT 97766240 T PT97766240 T PT 97766240T PT 09776624 T PT09776624 T PT 09776624T PT 2301019 T PT2301019 T PT 2301019T
Authority
PT
Portugal
Prior art keywords
audio
encoder
decoder
audio decoder
audio encoder
Prior art date
Application number
PT97766240T
Other languages
English (en)
Inventor
Geyersberger Stefan
Grill Bernhard
Multrus Markus
Fuchs Guillaume
Rettelbach Nikolaus
Bacigalupo Virgilio
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 PT2301019T publication Critical patent/PT2301019T/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
    • 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
    • H03M7/3059—Digital compression and data reduction techniques where the original information is represented by a subset or similar information, e.g. lossy compression
    • 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
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
    • H03M7/4006—Conversion to or from arithmetic code
    • H03M7/4012—Binary arithmetic codes
    • H03M7/4018—Context adapative binary arithmetic codes [CABAC]

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)
  • Stereo-Broadcasting Methods (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
PT97766240T 2008-07-11 2009-05-18 Codificador de áudio e descodificador de áudio PT2301019T (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7984208P 2008-07-11 2008-07-11
US10382008P 2008-10-08 2008-10-08

Publications (1)

Publication Number Publication Date
PT2301019T true PT2301019T (pt) 2017-12-26

Family

ID=40886050

Family Applications (3)

Application Number Title Priority Date Filing Date
PT191602838T PT3573056T (pt) 2008-07-11 2009-05-18 Codificador de áudio e descodificador de áudio
PT17190130T PT3300076T (pt) 2008-07-11 2009-05-18 Codificador de áudio e descodificador de áudio
PT97766240T PT2301019T (pt) 2008-07-11 2009-05-18 Codificador de áudio e descodificador de áudio

Family Applications Before (2)

Application Number Title Priority Date Filing Date
PT191602838T PT3573056T (pt) 2008-07-11 2009-05-18 Codificador de áudio e descodificador de áudio
PT17190130T PT3300076T (pt) 2008-07-11 2009-05-18 Codificador de áudio e descodificador de áudio

Country Status (21)

Country Link
US (10) US8930202B2 (pt)
EP (10) EP3937167B1 (pt)
JP (1) JP5606433B2 (pt)
KR (1) KR101456641B1 (pt)
CN (1) CN102089813B (pt)
AR (1) AR072422A1 (pt)
AU (1) AU2009267543B2 (pt)
BR (4) BR122021007798B1 (pt)
CA (1) CA2729925C (pt)
CO (1) CO6351831A2 (pt)
DK (1) DK3573056T3 (pt)
ES (8) ES3001990T3 (pt)
FI (1) FI3573056T3 (pt)
MX (1) MX2011000379A (pt)
MY (1) MY160260A (pt)
PL (8) PL3300076T3 (pt)
PT (3) PT3573056T (pt)
RU (1) RU2487427C2 (pt)
TW (1) TWI449033B (pt)
WO (1) WO2010003479A1 (pt)
ZA (1) ZA201009258B (pt)

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Also Published As

Publication number Publication date
EP2301019B1 (en) 2017-10-04
TWI449033B (zh) 2014-08-11
EP4224471A2 (en) 2023-08-09
RU2487427C2 (ru) 2013-07-10
US20230260524A1 (en) 2023-08-17
EP4376305A2 (en) 2024-05-29
KR101456641B1 (ko) 2014-11-04
BR122021007875B1 (pt) 2022-02-22
JP2011527443A (ja) 2011-10-27
AU2009267543B2 (en) 2013-01-31
ES2651437T3 (es) 2018-01-26
DK3573056T3 (da) 2022-10-03
EP4369609C0 (en) 2024-11-06
AR072422A1 (es) 2010-08-25
BRPI0910796A2 (pt) 2020-11-03
RU2011102424A (ru) 2012-07-27
PT3573056T (pt) 2022-10-24
US20230326470A1 (en) 2023-10-12
HK1253032A1 (en) 2019-06-06
EP4376307C0 (en) 2024-12-04
EP4369609A3 (en) 2024-05-22
JP5606433B2 (ja) 2014-10-15
US20110173007A1 (en) 2011-07-14
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