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

信号フィルタリング Download PDF

Info

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
Authority
JP
Japan
Prior art keywords
filter response
information signal
frame
frequency domain
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.)
Pending
Application number
JP2004544517A
Other languages
English (en)
Japanese (ja)
Other versions
JP2006503319A5 (enExample
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
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 JP2006503319A publication Critical patent/JP2006503319A/ja
Publication of JP2006503319A5 publication Critical patent/JP2006503319A5/ja
Pending legal-status Critical Current

Links

Images

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)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (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 (enExample) 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 (enExample)
EP (1) EP1554716A1 (enExample)
JP (1) JP2006503319A (enExample)
KR (1) KR20050049549A (enExample)
CN (1) CN1689070A (enExample)
AU (1) AU2003219428A1 (enExample)
WO (1) WO2004036549A1 (enExample)

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
CN1846253B (zh) * 2003-09-05 2010-06-16 皇家飞利浦电子股份有限公司 低比特率音频编码
WO2005122640A1 (en) * 2004-06-08 2005-12-22 Koninklijke Philips Electronics N.V. Coding reverberant sound signals
DE602005016571D1 (de) * 2004-08-26 2009-10-22 Panasonic Corp Mehrkanalige signal-dekodierung
RU2007107348A (ru) * 2004-08-31 2008-09-10 Мацусита Электрик Индастриал Ко., Лтд. (Jp) Устройство и способ генерирования стереосигнала
JP4809234B2 (ja) 2004-09-17 2011-11-09 パナソニック株式会社 オーディオ符号化装置、復号化装置、方法、及びプログラム
CN101185117B (zh) * 2005-05-26 2012-09-26 Lg电子株式会社 解码音频信号的方法和装置
EP1905002B1 (en) * 2005-05-26 2013-05-22 LG Electronics Inc. Method and apparatus for decoding audio signal
JP4988716B2 (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
KR100857106B1 (ko) 2005-09-14 2008-09-08 엘지전자 주식회사 오디오 신호의 디코딩 방법 및 장치
EP1974344A4 (en) 2006-01-19 2011-06-08 Lg Electronics Inc METHOD AND APPARATUS FOR DECODING A SIGNAL
EP1979898B1 (en) 2006-01-19 2014-08-06 Lg Electronics Inc. Method and apparatus for processing a media signal
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
KR100878816B1 (ko) 2006-02-07 2009-01-14 엘지전자 주식회사 부호화/복호화 장치 및 방법
WO2007097549A1 (en) 2006-02-23 2007-08-30 Lg Electronics Inc. Method and apparatus for processing an audio signal
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
AU2007300813B2 (en) 2006-09-29 2010-10-14 Lg Electronics Inc. Methods and apparatuses for encoding and decoding object-based audio signals
KR101016224B1 (ko) * 2006-12-12 2011-02-25 프라운호퍼-게젤샤프트 추르 푀르데룽 데어 안제반텐 포르슝 에 파우 인코더, 디코더 및 시간 영역 데이터 스트림을 나타내는 데이터 세그먼트를 인코딩하고 디코딩하는 방법
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
WO1999010719A1 (en) * 1997-08-29 1999-03-04 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
KR20050049549A (ko) 2005-05-25
WO2004036549A1 (en) 2004-04-29
AU2003219428A1 (en) 2004-05-04
CN1689070A (zh) 2005-10-26
US20060100861A1 (en) 2006-05-11
EP1554716A1 (en) 2005-07-20

Similar Documents

Publication Publication Date Title
US20060100861A1 (en) Signal filtering
US20260082172A1 (en) Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field
US7143047B2 (en) Time-scale modification of data-compressed audio information
RU2543309C2 (ru) Устройство, способ и компьютерная программа для того, чтобы управлять аудиосигналом, включающим переходный сигнал
US9596542B2 (en) Apparatus and method with enhancement of sound quality
US9609451B2 (en) Multi-rate system for audio processing
US9076437B2 (en) Audio signal processing apparatus
JP5092580B2 (ja) デジタル信号処理装置、デジタル信号処理方法及びデジタル信号処理プログラム
US8903730B2 (en) Content feature-preserving and complexity-scalable system and method to modify time scaling of digital audio signals
CN110267163B (zh) 一种定向声音虚拟低频增强方法、系统、介质和设备
KR20210114358A (ko) 오디오 데이터를 처리하기 위한 방법 및 장치
EP4505451B1 (en) Methods and apparatuses for user generated content capture and adaptive rendering
CN115315747B (zh) 信号处理装置、方法和程序
US7792681B2 (en) Time-scale modification of data-compressed audio information
EP1008138B1 (en) Fourier transform-based modification of audio
JP3472974B2 (ja) 音響信号符号化方法および音響信号復号化方法
CN116092465B (zh) 一种车载音频降噪方法、装置、存储介质和电子设备
JP2005057439A (ja) 帯域分割型符号化・復号化方法、及びその方法に用いる復号化装置
JPH09233372A (ja) ノイズ除去回路およびノイズ除去方法

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20060421

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20060421

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090818

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20100128