HK1074877A1 - Audio decoding apparatus and method - Google Patents

Audio decoding apparatus and method

Info

Publication number
HK1074877A1
HK1074877A1 HK05108972.0A HK05108972A HK1074877A1 HK 1074877 A1 HK1074877 A1 HK 1074877A1 HK 05108972 A HK05108972 A HK 05108972A HK 1074877 A1 HK1074877 A1 HK 1074877A1
Authority
HK
Hong Kong
Prior art keywords
aliasing
high frequency
subband signals
frequency subband
decoding apparatus
Prior art date
Application number
HK05108972.0A
Other languages
English (en)
Inventor
Naoya Tanaka
Osamu Shimada
Mineo Tsushima
Takeshi Norimatsu
Kok Seng Chong
Kim Hann Kuah
Sua Hong Neo
Toshiyuki Nomura
Yuichiro Takamizawa
Masahiro Serizawa
Original Assignee
Matsushita Electric Ind Co Ltd
Nec Corp
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 Matsushita Electric Ind Co Ltd, Nec Corp filed Critical Matsushita Electric Ind Co Ltd
Publication of HK1074877A1 publication Critical patent/HK1074877A1/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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading 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
    • G10L19/02—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

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)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
HK05108972.0A 2002-09-19 2005-10-10 Audio decoding apparatus and method HK1074877A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2002273557 2002-09-19
JP2002283722 2002-09-27
JP2002300490 2002-10-15
PCT/JP2003/011601 WO2004027368A1 (en) 2002-09-19 2003-09-11 Audio decoding apparatus and method

Publications (1)

Publication Number Publication Date
HK1074877A1 true HK1074877A1 (en) 2005-11-25

Family

ID=32034073

Family Applications (1)

Application Number Title Priority Date Filing Date
HK05108972.0A HK1074877A1 (en) 2002-09-19 2005-10-10 Audio decoding apparatus and method

Country Status (14)

Country Link
US (1) US7069212B2 (de)
EP (1) EP1543307B1 (de)
JP (1) JP3646939B1 (de)
KR (1) KR100728428B1 (de)
CN (1) CN100492492C (de)
AT (1) ATE318405T1 (de)
AU (1) AU2003260958A1 (de)
BR (1) BRPI0306434B1 (de)
CA (1) CA2469674C (de)
DE (1) DE60303689T2 (de)
ES (1) ES2259158T3 (de)
HK (1) HK1074877A1 (de)
TW (1) TWI313856B (de)
WO (1) WO2004027368A1 (de)

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DE60303689D1 (de) 2006-04-27
DE60303689T2 (de) 2006-10-19
BRPI0306434A8 (pt) 2017-10-10
AU2003260958A1 (en) 2004-04-08
TW200407846A (en) 2004-05-16
WO2004027368A1 (en) 2004-04-01
JP2005520219A (ja) 2005-07-07
CA2469674C (en) 2012-04-24
BRPI0306434B1 (pt) 2018-06-12
BR0306434A (pt) 2004-10-26
KR100728428B1 (ko) 2007-06-13
AU2003260958A8 (en) 2004-04-08
KR20050042075A (ko) 2005-05-04
TWI313856B (en) 2009-08-21
ATE318405T1 (de) 2006-03-15
US20050149339A1 (en) 2005-07-07
CN1606687A (zh) 2005-04-13
US7069212B2 (en) 2006-06-27
EP1543307A1 (de) 2005-06-22
ES2259158T3 (es) 2006-09-16
EP1543307B1 (de) 2006-02-22
CN100492492C (zh) 2009-05-27
CA2469674A1 (en) 2004-04-01

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