JP2006503319A - 信号フィルタリング - Google Patents

信号フィルタリング Download PDF

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Publication number
JP2006503319A
JP2006503319A JP2004544517A JP2004544517A JP2006503319A JP 2006503319 A JP2006503319 A JP 2006503319A JP 2004544517 A JP2004544517 A JP 2004544517A JP 2004544517 A JP2004544517 A JP 2004544517A JP 2006503319 A JP2006503319 A JP 2006503319A
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JP
Japan
Prior art keywords
filter response
information signal
frame
frequency domain
signal
Prior art date
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Pending
Application number
JP2004544517A
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English (en)
Japanese (ja)
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JP2006503319A5 (https=
Inventor
ディルク ジェイ ブリーバールト
エリク ジー ピー スヘイエルス
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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Filing date
Publication date
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of JP2006503319A publication Critical patent/JP2006503319A/ja
Publication of JP2006503319A5 publication Critical patent/JP2006503319A5/ja
Pending legal-status Critical Current

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    • 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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/03—Application of parametric coding in stereophonic audio systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels

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)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
JP2004544517A 2002-10-14 2003-04-22 信号フィルタリング Pending JP2006503319A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02079303 2002-10-14
PCT/IB2003/001660 WO2004036549A1 (en) 2002-10-14 2003-04-22 Signal filtering

Publications (2)

Publication Number Publication Date
JP2006503319A true JP2006503319A (ja) 2006-01-26
JP2006503319A5 JP2006503319A5 (https=) 2006-06-15

Family

ID=32103949

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004544517A Pending JP2006503319A (ja) 2002-10-14 2003-04-22 信号フィルタリング

Country Status (7)

Country Link
US (1) US20060100861A1 (https=)
EP (1) EP1554716A1 (https=)
JP (1) JP2006503319A (https=)
KR (1) KR20050049549A (https=)
CN (1) CN1689070A (https=)
AU (1) AU2003219428A1 (https=)
WO (1) WO2004036549A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015508186A (ja) * 2012-02-23 2015-03-16 ドルビー・インターナショナル・アーベー 高周波オーディオ内容の効率的な復元のための方法およびシステム

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005024783A1 (en) * 2003-09-05 2005-03-17 Koninklijke Philips Electronics N.V. Low bit-rate audio encoding
KR101158717B1 (ko) * 2004-06-08 2012-06-22 코닌클리케 필립스 일렉트로닉스 엔.브이. 반향 음향 신호를 코딩하는 방법
CN101010725A (zh) * 2004-08-26 2007-08-01 松下电器产业株式会社 多信道信号编码装置以及多信道信号解码装置
KR20070056081A (ko) * 2004-08-31 2007-05-31 마츠시타 덴끼 산교 가부시키가이샤 스테레오 신호 생성 장치 및 스테레오 신호 생성 방법
WO2006030754A1 (ja) 2004-09-17 2006-03-23 Matsushita Electric Industrial Co., Ltd. オーディオ符号化装置、復号化装置、方法、及びプログラム
US8577686B2 (en) * 2005-05-26 2013-11-05 Lg Electronics Inc. Method and apparatus for decoding an audio signal
JP4988717B2 (ja) 2005-05-26 2012-08-01 エルジー エレクトロニクス インコーポレイティド オーディオ信号のデコーディング方法及び装置
CN101185118B (zh) * 2005-05-26 2013-01-16 Lg电子株式会社 解码音频信号的方法和装置
EP1946296A4 (en) 2005-09-14 2010-01-20 Lg Electronics Inc METHOD AND DEVICE FOR DECODING AN AUDIO SIGNAL
TWI469133B (zh) 2006-01-19 2015-01-11 Lg Electronics Inc 媒體訊號處理方法及裝置
US8239209B2 (en) 2006-01-19 2012-08-07 Lg Electronics Inc. Method and apparatus for decoding an audio signal using a rendering parameter
JPWO2007088853A1 (ja) * 2006-01-31 2009-06-25 パナソニック株式会社 音声符号化装置、音声復号装置、音声符号化システム、音声符号化方法及び音声復号方法
JP5199129B2 (ja) 2006-02-07 2013-05-15 エルジー エレクトロニクス インコーポレイティド 符号化／復号化装置及び方法
ES2407820T3 (es) 2006-02-23 2013-06-14 Lg Electronics Inc. Método y aparato para procesar una señal de audio
EP1999745B1 (en) 2006-03-30 2016-08-31 LG Electronics Inc. Apparatuses and methods for processing an audio signal
US20080235006A1 (en) 2006-08-18 2008-09-25 Lg Electronics, Inc. Method and Apparatus for Decoding an Audio Signal
JP5238706B2 (ja) 2006-09-29 2013-07-17 エルジー エレクトロニクス インコーポレイティド オブジェクトベースオーディオ信号のエンコーディング／デコーディング方法及びその装置
BRPI0718738B1 (pt) * 2006-12-12 2023-05-16 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Codificador, decodificador e métodos para codificação e decodificação de segmentos de dados representando uma corrente de dados de domínio de tempo
JP2011004264A (ja) * 2009-06-19 2011-01-06 Fujitsu Ltd ディジタル信号処理装置およびディジタル信号処理方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4937873A (en) * 1985-03-18 1990-06-26 Massachusetts Institute Of Technology Computationally efficient sine wave synthesis for acoustic waveform processing
US5189701A (en) * 1991-10-25 1993-02-23 Micom Communications Corp. Voice coder/decoder and methods of coding/decoding
JP3310682B2 (ja) * 1992-01-21 2002-08-05 日本ビクター株式会社 音響信号の符号化方法及び再生方法
US6112169A (en) * 1996-11-07 2000-08-29 Creative Technology, Ltd. System for fourier transform-based modification of audio
US6233550B1 (en) * 1997-08-29 2001-05-15 The Regents Of The University Of California Method and apparatus for hybrid coding of speech at 4kbps
FR2768547B1 (fr) * 1997-09-18 1999-11-19 Matra Communication Procede de debruitage d'un signal de parole numerique
US6266003B1 (en) * 1998-08-28 2001-07-24 Sigma Audio Research Limited Method and apparatus for signal processing for time-scale and/or pitch modification of audio signals
US6084170A (en) * 1999-09-08 2000-07-04 Creative Technology Ltd. Optimal looping for wavetable synthesis

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015508186A (ja) * 2012-02-23 2015-03-16 ドルビー・インターナショナル・アーベー 高周波オーディオ内容の効率的な復元のための方法およびシステム
US9666200B2 (en) 2012-02-23 2017-05-30 Dolby International Ab Methods and systems for efficient recovery of high frequency audio content
US9984695B2 (en) 2012-02-23 2018-05-29 Dolby International Ab Methods and systems for efficient recovery of high frequency audio content

Also Published As

Publication number Publication date
CN1689070A (zh) 2005-10-26
AU2003219428A1 (en) 2004-05-04
WO2004036549A1 (en) 2004-04-29
KR20050049549A (ko) 2005-05-25
US20060100861A1 (en) 2006-05-11
EP1554716A1 (en) 2005-07-20

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