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HK1083664A1 - Apparatus and method for encoding an audio signal and apparatus and method for decoding an encoded audio signal - Google Patents

Apparatus and method for encoding an audio signal and apparatus and method for decoding an encoded audio signal

Info

Publication number
HK1083664A1
HK1083664A1 HK06105737A HK06105737A HK1083664A1 HK 1083664 A1 HK1083664 A1 HK 1083664A1 HK 06105737 A HK06105737 A HK 06105737A HK 06105737 A HK06105737 A HK 06105737A HK 1083664 A1 HK1083664 A1 HK 1083664A1
Authority
HK
Hong Kong
Prior art keywords
audio signal
decoding
encoding
encoded audio
encoded
Prior art date
Application number
HK06105737A
Other languages
English (en)
Inventor
Holger Hoerich
Michael Schug
Matthias Neusinger
Original Assignee
Coding Tech Ab
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 Coding Tech Ab filed Critical Coding Tech Ab
Publication of HK1083664A1 publication Critical patent/HK1083664A1/xx

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
    • 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
    • G10L19/04—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
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • 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

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)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
HK06105737A 2003-06-25 2006-05-17 Apparatus and method for encoding an audio signal and apparatus and method for decoding an encoded audio signal HK1083664A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10328777A DE10328777A1 (de) 2003-06-25 2003-06-25 Vorrichtung und Verfahren zum Codieren eines Audiosignals und Vorrichtung und Verfahren zum Decodieren eines codierten Audiosignals
PCT/EP2004/006850 WO2005001813A1 (en) 2003-06-25 2004-06-24 Apparatus and method for encoding an audio signal and apparatus and method for decoding an encoded audio signal

Publications (1)

Publication Number Publication Date
HK1083664A1 true HK1083664A1 (en) 2006-07-07

Family

ID=33546670

Family Applications (1)

Application Number Title Priority Date Filing Date
HK06105737A HK1083664A1 (en) 2003-06-25 2006-05-17 Apparatus and method for encoding an audio signal and apparatus and method for decoding an encoded audio signal

Country Status (7)

Country Link
US (1) US7275031B2 (xx)
EP (1) EP1636791B1 (xx)
JP (1) JP2009513992A (xx)
CN (1) CN1809872B (xx)
DE (2) DE10328777A1 (xx)
HK (1) HK1083664A1 (xx)
WO (1) WO2005001813A1 (xx)

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Also Published As

Publication number Publication date
EP1636791A1 (en) 2006-03-22
CN1809872A (zh) 2006-07-26
EP1636791B1 (en) 2007-03-07
DE602004005197T2 (de) 2007-06-28
WO2005001813A1 (en) 2005-01-06
CN1809872B (zh) 2010-06-02
JP2009513992A (ja) 2009-04-02
DE10328777A1 (de) 2005-01-27
US7275031B2 (en) 2007-09-25
US20060167683A1 (en) 2006-07-27
DE602004005197D1 (de) 2007-04-19

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