TWI347589B - Method of encoding an audio signal and computer-readable medium thereof,method of decoding an audio signal and computer-readable medium thereof,codec,and endpoint device - Google Patents

Method of encoding an audio signal and computer-readable medium thereof,method of decoding an audio signal and computer-readable medium thereof,codec,and endpoint device

Info

Publication number
TWI347589B
TWI347589B TW096132103A TW96132103A TWI347589B TW I347589 B TWI347589 B TW I347589B TW 096132103 A TW096132103 A TW 096132103A TW 96132103 A TW96132103 A TW 96132103A TW I347589 B TWI347589 B TW I347589B
Authority
TW
Taiwan
Prior art keywords
computer
readable medium
audio signal
codec
decoding
Prior art date
Application number
TW096132103A
Other languages
English (en)
Other versions
TW200828268A (en
Inventor
Minjie Xie
Peter Chu
Original Assignee
Polycom Inc
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 Polycom Inc filed Critical Polycom Inc
Publication of TW200828268A publication Critical patent/TW200828268A/zh
Application granted granted Critical
Publication of TWI347589B publication Critical patent/TWI347589B/zh

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
    • G10L19/0212—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
    • G10L19/02—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
TW096132103A 2006-10-18 2007-08-29 Method of encoding an audio signal and computer-readable medium thereof,method of decoding an audio signal and computer-readable medium thereof,codec,and endpoint device TWI347589B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/550,629 US7953595B2 (en) 2006-10-18 2006-10-18 Dual-transform coding of audio signals

Publications (2)

Publication Number Publication Date
TW200828268A TW200828268A (en) 2008-07-01
TWI347589B true TWI347589B (en) 2011-08-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
TW096132103A TWI347589B (en) 2006-10-18 2007-08-29 Method of encoding an audio signal and computer-readable medium thereof,method of decoding an audio signal and computer-readable medium thereof,codec,and endpoint device

Country Status (6)

Country Link
US (1) US7953595B2 (zh)
EP (1) EP1914724B1 (zh)
JP (1) JP4742087B2 (zh)
CN (1) CN101165778B (zh)
HK (1) HK1111801A1 (zh)
TW (1) TWI347589B (zh)

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Also Published As

Publication number Publication date
US20080097749A1 (en) 2008-04-24
EP1914724A3 (en) 2011-12-07
JP2008102520A (ja) 2008-05-01
HK1111801A1 (en) 2008-08-15
TW200828268A (en) 2008-07-01
CN101165778A (zh) 2008-04-23
CN101165778B (zh) 2011-10-19
US7953595B2 (en) 2011-05-31
JP4742087B2 (ja) 2011-08-10
EP1914724B1 (en) 2012-12-05
EP1914724A2 (en) 2008-04-23

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