WO2002045078A1 - Audio decoder and audio decoding method - Google Patents

Audio decoder and audio decoding method Download PDF

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Publication number
WO2002045078A1
WO2002045078A1 PCT/JP2001/010519 JP0110519W WO0245078A1 WO 2002045078 A1 WO2002045078 A1 WO 2002045078A1 JP 0110519 W JP0110519 W JP 0110519W WO 0245078 A1 WO0245078 A1 WO 0245078A1
Authority
WO
WIPO (PCT)
Prior art keywords
stationary
audio
judgment result
decoding method
stationary noise
Prior art date
Application number
PCT/JP2001/010519
Other languages
English (en)
French (fr)
Inventor
Hiroyuki Ehara
Kazutoshi Yasunaga
Kazunori Mano
Yusuke Hiwasaki
Original Assignee
Matsushita Electric Industrial Co., Ltd.
Nippon Telegraph And Telephone Corporation
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 Industrial Co., Ltd., Nippon Telegraph And Telephone Corporation filed Critical Matsushita Electric Industrial Co., Ltd.
Priority to DE60139144T priority Critical patent/DE60139144D1/de
Priority to CA2430319A priority patent/CA2430319C/en
Priority to EP01998968A priority patent/EP1339041B1/en
Priority to KR1020037007219A priority patent/KR100566163B1/ko
Priority to US10/432,237 priority patent/US7478042B2/en
Priority to AU2002218520A priority patent/AU2002218520A1/en
Publication of WO2002045078A1 publication Critical patent/WO2002045078A1/ja

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
PCT/JP2001/010519 2000-11-30 2001-11-30 Audio decoder and audio decoding method WO2002045078A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE60139144T DE60139144D1 (de) 2000-11-30 2001-11-30 Audio-dekodierer und audio-dekodierungsverfahren
CA2430319A CA2430319C (en) 2000-11-30 2001-11-30 Speech decoding apparatus and speech decoding method
EP01998968A EP1339041B1 (en) 2000-11-30 2001-11-30 Audio decoder and audio decoding method
KR1020037007219A KR100566163B1 (ko) 2000-11-30 2001-11-30 음성 복호화 장치, 음성 복호화 방법 및 프로그램을기록한 기록 매체
US10/432,237 US7478042B2 (en) 2000-11-30 2001-11-30 Speech decoder that detects stationary noise signal regions
AU2002218520A AU2002218520A1 (en) 2000-11-30 2001-11-30 Audio decoder and audio decoding method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000366342 2000-11-30
JP2000-366342 2000-11-30

Publications (1)

Publication Number Publication Date
WO2002045078A1 true WO2002045078A1 (en) 2002-06-06

Family

ID=18836986

Family Applications (1)

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

Country Status (9)

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

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US8756066B2 (en) 2007-02-14 2014-06-17 Lg Electronics Inc. Methods and apparatuses for encoding and decoding object-based audio signals

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CN1989548B (zh) * 2004-07-20 2010-12-08 松下电器产业株式会社 语音解码装置及补偿帧生成方法
CN101138174B (zh) * 2005-03-14 2013-04-24 松下电器产业株式会社 可扩展解码装置和可扩展解码方法
JP4911034B2 (ja) 2005-10-20 2012-04-04 日本電気株式会社 音声判別システム、音声判別方法及び音声判別用プログラム
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JP5052514B2 (ja) 2006-07-12 2012-10-17 パナソニック株式会社 音声復号装置
WO2008072671A1 (ja) * 2006-12-13 2008-06-19 Panasonic Corporation 音声復号化装置およびパワ調整方法
CN101617362B (zh) * 2007-03-02 2012-07-18 松下电器产业株式会社 语音解码装置和语音解码方法
US8457953B2 (en) * 2007-03-05 2013-06-04 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement for smoothing of stationary background noise
WO2009028349A1 (ja) * 2007-08-27 2009-03-05 Nec Corporation 特定信号消去方法、特定信号消去装置、適応フィルタ係数更新方法、適応フィルタ係数更新装置及びコンピュータプログラム
FR2938688A1 (fr) * 2008-11-18 2010-05-21 France Telecom Codage avec mise en forme du bruit dans un codeur hierarchique
US9269366B2 (en) * 2009-08-03 2016-02-23 Broadcom Corporation Hybrid instantaneous/differential pitch period coding
RU2510974C2 (ru) * 2010-01-08 2014-04-10 Ниппон Телеграф Энд Телефон Корпорейшн Способ кодирования, способ декодирования, устройство кодера, устройство декодера, программа и носитель записи
JP5664291B2 (ja) * 2011-02-01 2015-02-04 沖電気工業株式会社 音声品質観測装置、方法及びプログラム
RU2559709C2 (ru) 2011-02-16 2015-08-10 Ниппон Телеграф Энд Телефон Корпорейшн Способ кодирования, способ декодирования, кодер, декодер, программа и носитель записи
JP5973582B2 (ja) 2011-10-21 2016-08-23 サムスン エレクトロニクス カンパニー リミテッド フレームエラー隠匿方法及びその装置、並びにオーディオ復号化方法及びその装置
KR101629661B1 (ko) * 2012-08-29 2016-06-13 니폰 덴신 덴와 가부시끼가이샤 복호 방법, 복호 장치, 프로그램 및 그 기록매체
US9741350B2 (en) * 2013-02-08 2017-08-22 Qualcomm Incorporated Systems and methods of performing gain control
US9711156B2 (en) * 2013-02-08 2017-07-18 Qualcomm Incorporated Systems and methods of performing filtering for gain determination
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 (ko) * 2013-09-16 2015-03-26 삼성전자주식회사 음성 명료도 향상을 위한 음성 신호 처리 장치 및 방법
JP6996185B2 (ja) * 2017-09-15 2022-01-17 富士通株式会社 発話区間検出装置、発話区間検出方法及び発話区間検出用コンピュータプログラム

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8756066B2 (en) 2007-02-14 2014-06-17 Lg Electronics Inc. Methods and apparatuses for encoding and decoding object-based audio signals
US9449601B2 (en) 2007-02-14 2016-09-20 Lg Electronics Inc. Methods and apparatuses for encoding and decoding object-based audio signals

Also Published As

Publication number Publication date
US7478042B2 (en) 2009-01-13
US20040049380A1 (en) 2004-03-11
CA2430319A1 (en) 2002-06-06
CZ20031767A3 (cs) 2003-11-12
KR100566163B1 (ko) 2006-03-29
EP1339041A1 (en) 2003-08-27
AU2002218520A1 (en) 2002-06-11
CN1210690C (zh) 2005-07-13
CN1484823A (zh) 2004-03-24
DE60139144D1 (de) 2009-08-13
CA2430319C (en) 2011-03-01
EP1339041A4 (en) 2005-10-12
KR20040029312A (ko) 2004-04-06
EP1339041B1 (en) 2009-07-01

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