ATE487213T1 - Verarbeitung von mehrkanalsignalen - Google Patents

Verarbeitung von mehrkanalsignalen

Info

Publication number
ATE487213T1
ATE487213T1 AT04720692T AT04720692T ATE487213T1 AT E487213 T1 ATE487213 T1 AT E487213T1 AT 04720692 T AT04720692 T AT 04720692T AT 04720692 T AT04720692 T AT 04720692T AT E487213 T1 ATE487213 T1 AT E487213T1
Authority
AT
Austria
Prior art keywords
mrow
msup
math
maths
munder
Prior art date
Application number
AT04720692T
Other languages
English (en)
Inventor
Dirk Beebaart
Erik Schuijers
Original Assignee
Koninkl 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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Application granted granted Critical
Publication of ATE487213T1 publication Critical patent/ATE487213T1/de

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/007—Two-channel systems in which the audio signals are in digital form
    • 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)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Mathematical Physics (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Optical Communication System (AREA)
  • Amplifiers (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
AT04720692T 2003-03-17 2004-03-15 Verarbeitung von mehrkanalsignalen ATE487213T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03100664 2003-03-17
PCT/IB2004/050255 WO2004084185A1 (en) 2003-03-17 2004-03-15 Processing of multi-channel signals

Publications (1)

Publication Number Publication Date
ATE487213T1 true ATE487213T1 (de) 2010-11-15

Family

ID=33016948

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04720692T ATE487213T1 (de) 2003-03-17 2004-03-15 Verarbeitung von mehrkanalsignalen

Country Status (9)

Country Link
US (1) US7343281B2 (de)
EP (1) EP1606797B1 (de)
JP (1) JP5208413B2 (de)
KR (1) KR101035104B1 (de)
CN (1) CN1761998B (de)
AT (1) ATE487213T1 (de)
DE (1) DE602004029872D1 (de)
ES (1) ES2355240T3 (de)
WO (1) WO2004084185A1 (de)

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* Cited by examiner, † Cited by third party
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DE10150519B4 (de) * 2001-10-12 2014-01-09 Hewlett-Packard Development Co., L.P. Verfahren und Anordnung zur Sprachverarbeitung
JP4076887B2 (ja) * 2003-03-24 2008-04-16 ローランド株式会社 ボコーダ装置
ES2333137T3 (es) * 2004-07-14 2010-02-17 Koninklijke Philips Electronics N.V. Conversion de canal de audio.
SE0402650D0 (sv) * 2004-11-02 2004-11-02 Coding Tech Ab Improved parametric stereo compatible coding of spatial audio
DE602005017660D1 (de) * 2004-12-28 2009-12-24 Panasonic Corp Audiokodierungsvorrichtung und audiokodierungsmethode
US20070299657A1 (en) * 2006-06-21 2007-12-27 Kang George S Method and apparatus for monitoring multichannel voice transmissions
US8355921B2 (en) * 2008-06-13 2013-01-15 Nokia Corporation Method, apparatus and computer program product for providing improved audio processing
DE102008056704B4 (de) * 2008-11-11 2010-11-04 Institut für Rundfunktechnik GmbH Verfahren zum Erzeugen eines abwärtskompatiblen Tonformates
US8401294B1 (en) * 2008-12-30 2013-03-19 Lucasfilm Entertainment Company Ltd. Pattern matching using convolution of mask image and search image
US8213506B2 (en) * 2009-09-08 2012-07-03 Skype Video coding
DE102009052992B3 (de) 2009-11-12 2011-03-17 Institut für Rundfunktechnik GmbH Verfahren zum Abmischen von Mikrofonsignalen einer Tonaufnahme mit mehreren Mikrofonen
EP2323130A1 (de) * 2009-11-12 2011-05-18 Koninklijke Philips Electronics N.V. Parametrische Kodierung- und Dekodierung
CN102157149B (zh) 2010-02-12 2012-08-08 华为技术有限公司 立体声信号下混方法、编解码装置和编解码系统
CN102487451A (zh) * 2010-12-02 2012-06-06 深圳市同洲电子股份有限公司 数字电视接收终端的音频测试方法及系统
ITTO20120274A1 (it) * 2012-03-27 2013-09-28 Inst Rundfunktechnik Gmbh Dispositivo per il missaggio di almeno due segnali audio.
KR102160254B1 (ko) * 2014-01-10 2020-09-25 삼성전자주식회사 액티브다운 믹스 방식을 이용한 입체 음향 재생 방법 및 장치
JP6858072B2 (ja) * 2016-05-24 2021-04-14 日本放送協会 音声信号補正装置及びプログラム
PL3748633T3 (pl) 2016-11-08 2025-11-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Moduł downmixu i sposób downmixu co najmniej dwóch kanałów oraz koder wielokanałowy i dekoder wielokanałowy
WO2019076739A1 (en) * 2017-10-16 2019-04-25 Sony Europe Limited AUDIO PROCESSING
EP3891737B1 (de) * 2019-01-11 2024-07-03 Boomcloud 360, Inc. Tonbühnenerhaltende audiokanalsummierung
MX2021010570A (es) * 2019-03-06 2021-10-13 Fraunhofer Ges Forschung Mezcladora para reducir el numero de canales de audio y metodo de mezclado para reducir el numero de canales de audio.
KR20250052461A (ko) 2021-07-08 2025-04-18 붐클라우드 360 인코포레이티드 올패스 필터 네트워크를 사용한 고도 지각적 큐의 무색 생성

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IT1246839B (it) 1990-07-13 1994-11-28 Flaminio Frassinetti Apparecchiatura per la miscelazione, a separazione di banda, di segnali elettrici.
JP3099892B2 (ja) * 1990-10-19 2000-10-16 リーダー電子株式会社 ステレオ信号の位相関係判定に使用する方法及び装置
CA2125220C (en) * 1993-06-08 2000-08-15 Joji Kane Noise suppressing apparatus capable of preventing deterioration in high frequency signal characteristic after noise suppression and in balanced signal transmitting system
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DE4409368A1 (de) * 1994-03-18 1995-09-21 Fraunhofer Ges Forschung Verfahren zum Codieren mehrerer Audiosignale
US5850453A (en) * 1995-07-28 1998-12-15 Srs Labs, Inc. Acoustic correction apparatus
DK0887958T3 (da) 1997-06-23 2003-05-05 Liechti Ag Fremgangsmåde til komprimering af optagelser af omgivelseslyd, fremgangsmåde til detektering af programelementer deri, indretninger og computerprogram dertil
US6539357B1 (en) 1999-04-29 2003-03-25 Agere Systems Inc. Technique for parametric coding of a signal containing information
US6614365B2 (en) * 2000-12-14 2003-09-02 Sony Corporation Coding device and method, decoding device and method, and recording medium
JP3951690B2 (ja) * 2000-12-14 2007-08-01 ソニー株式会社 符号化装置および方法、並びに記録媒体
CA2354808A1 (en) * 2001-08-07 2003-02-07 King Tam Sub-band adaptive signal processing in an oversampled filterbank
EP1500085B1 (de) 2002-04-10 2013-02-20 Koninklijke Philips Electronics N.V. Kodierung von stereosignalen
JP4805541B2 (ja) 2002-04-10 2011-11-02 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ ステレオ信号の符号化
EP1500084B1 (de) 2002-04-22 2008-01-23 Koninklijke Philips Electronics N.V. Parametrische darstellung von raumklang

Also Published As

Publication number Publication date
ES2355240T3 (es) 2011-03-24
EP1606797A1 (de) 2005-12-21
KR20050107812A (ko) 2005-11-15
KR101035104B1 (ko) 2011-05-19
WO2004084185A1 (en) 2004-09-30
JP2006520927A (ja) 2006-09-14
DE602004029872D1 (de) 2010-12-16
CN1761998B (zh) 2010-09-08
US20060178870A1 (en) 2006-08-10
EP1606797B1 (de) 2010-11-03
US7343281B2 (en) 2008-03-11
JP5208413B2 (ja) 2013-06-12
CN1761998A (zh) 2006-04-19

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