AU2002218520A1 - Audio decoder and audio decoding method - Google Patents

Audio decoder and audio decoding method

Info

Publication number
AU2002218520A1
AU2002218520A1 AU2002218520A AU1852002A AU2002218520A1 AU 2002218520 A1 AU2002218520 A1 AU 2002218520A1 AU 2002218520 A AU2002218520 A AU 2002218520A AU 1852002 A AU1852002 A AU 1852002A AU 2002218520 A1 AU2002218520 A1 AU 2002218520A1
Authority
AU
Australia
Prior art keywords
audio
decoding method
decoder
audio decoder
audio decoding
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU2002218520A
Inventor
Hiroyuki Ehara
Yusuke Hiwasaki
Kazunori Mano
Kazutoshi Yasunaga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Panasonic Holdings Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Matsushita Electric Industrial Co Ltd
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 Nippon Telegraph and Telephone Corp, Matsushita Electric Industrial Co Ltd filed Critical Nippon Telegraph and Telephone Corp
Publication of AU2002218520A1 publication Critical patent/AU2002218520A1/en
Abandoned legal-status Critical Current

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
    • G10L19/012—Comfort noise or silence coding
    • 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
    • G10L25/78—Detection of presence or absence of voice signals
    • G10L25/84—Detection of presence or absence of voice signals for discriminating voice from noise
    • 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
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/78—Detection of presence or absence of voice signals
    • 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
    • G10L25/90—Pitch determination of speech signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereo-Broadcasting Methods (AREA)
AU2002218520A 2000-11-30 2001-11-30 Audio decoder and audio decoding method Abandoned AU2002218520A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000-366342 2000-11-30
JP2000366342 2000-11-30
PCT/JP2001/010519 WO2002045078A1 (en) 2000-11-30 2001-11-30 Audio decoder and audio decoding method

Publications (1)

Publication Number Publication Date
AU2002218520A1 true AU2002218520A1 (en) 2002-06-11

Family

ID=18836986

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002218520A Abandoned AU2002218520A1 (en) 2000-11-30 2001-11-30 Audio decoder and audio decoding method

Country Status (9)

Country Link
US (1) US7478042B2 (en)
EP (1) EP1339041B1 (en)
KR (1) KR100566163B1 (en)
CN (1) CN1210690C (en)
AU (1) AU2002218520A1 (en)
CA (1) CA2430319C (en)
CZ (1) CZ20031767A3 (en)
DE (1) DE60139144D1 (en)
WO (1) WO2002045078A1 (en)

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US8670990B2 (en) * 2009-08-03 2014-03-11 Broadcom Corporation Dynamic time scale modification for reduced bit rate audio coding
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JP5664291B2 (en) * 2011-02-01 2015-02-04 沖電気工業株式会社 Voice quality observation apparatus, method and program
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TWI610296B (en) 2011-10-21 2018-01-01 三星電子股份有限公司 Frame error concealment apparatus and audio decoding apparatus
CN104584123B (en) * 2012-08-29 2018-02-13 日本电信电话株式会社 Coding/decoding method and decoding apparatus
US9711156B2 (en) * 2013-02-08 2017-07-18 Qualcomm Incorporated Systems and methods of performing filtering for gain determination
US9741350B2 (en) * 2013-02-08 2017-08-22 Qualcomm Incorporated Systems and methods of performing gain control
US9842598B2 (en) * 2013-02-21 2017-12-12 Qualcomm Incorporated Systems and methods for mitigating potential frame instability
US9258661B2 (en) * 2013-05-16 2016-02-09 Qualcomm Incorporated Automated gain matching for multiple microphones
KR20150032390A (en) * 2013-09-16 2015-03-26 삼성전자주식회사 Speech signal process apparatus and method for enhancing speech intelligibility
JP6996185B2 (en) * 2017-09-15 2022-01-17 富士通株式会社 Utterance section detection device, utterance section detection method, and computer program for utterance section detection

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Also Published As

Publication number Publication date
EP1339041A1 (en) 2003-08-27
CN1210690C (en) 2005-07-13
EP1339041A4 (en) 2005-10-12
CA2430319C (en) 2011-03-01
WO2002045078A1 (en) 2002-06-06
CN1484823A (en) 2004-03-24
KR100566163B1 (en) 2006-03-29
US20040049380A1 (en) 2004-03-11
EP1339041B1 (en) 2009-07-01
US7478042B2 (en) 2009-01-13
DE60139144D1 (en) 2009-08-13
CZ20031767A3 (en) 2003-11-12
CA2430319A1 (en) 2002-06-06
KR20040029312A (en) 2004-04-06

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