AU2003219428A1 - Signal filtering - Google Patents

Signal filtering

Info

Publication number
AU2003219428A1
AU2003219428A1 AU2003219428A AU2003219428A AU2003219428A1 AU 2003219428 A1 AU2003219428 A1 AU 2003219428A1 AU 2003219428 A AU2003219428 A AU 2003219428A AU 2003219428 A AU2003219428 A AU 2003219428A AU 2003219428 A1 AU2003219428 A1 AU 2003219428A1
Authority
AU
Australia
Prior art keywords
signal filtering
filtering
signal
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
AU2003219428A
Other languages
English (en)
Inventor
Dirk J. Breebaart
Erik G. P. Schuijers
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
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of AU2003219428A1 publication Critical patent/AU2003219428A1/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
    • G10L19/008—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)
AU2003219428A 2002-10-14 2003-04-22 Signal filtering Abandoned AU2003219428A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP02079303 2002-10-14
EP02079303.0 2002-10-14
PCT/IB2003/001660 WO2004036549A1 (en) 2002-10-14 2003-04-22 Signal filtering

Publications (1)

Publication Number Publication Date
AU2003219428A1 true AU2003219428A1 (en) 2004-05-04

Family

ID=32103949

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003219428A Abandoned AU2003219428A1 (en) 2002-10-14 2003-04-22 Signal filtering

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=)

Families Citing this family (20)

* 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
RU2601188C2 (ru) * 2012-02-23 2016-10-27 Долби Интернэшнл Аб Способы и системы для эффективного восстановления высокочастотного аудиоконтента

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

Also Published As

Publication number Publication date
CN1689070A (zh) 2005-10-26
JP2006503319A (ja) 2006-01-26
WO2004036549A1 (en) 2004-04-29
KR20050049549A (ko) 2005-05-25
US20060100861A1 (en) 2006-05-11
EP1554716A1 (en) 2005-07-20

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase