NO20064431L - Prosessering av et multikanalsignal - Google Patents

Prosessering av et multikanalsignal

Info

Publication number
NO20064431L
NO20064431L NO20064431A NO20064431A NO20064431L NO 20064431 L NO20064431 L NO 20064431L NO 20064431 A NO20064431 A NO 20064431A NO 20064431 A NO20064431 A NO 20064431A NO 20064431 L NO20064431 L NO 20064431L
Authority
NO
Norway
Prior art keywords
channels
prediction
processing
channel signal
channel
Prior art date
Application number
NO20064431A
Other languages
English (en)
Other versions
NO339114B1 (no
Inventor
Juergen Herre
Michael Schug
Alexander Groschel
Original Assignee
Fraunhofer Ges Forschung
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 Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of NO20064431L publication Critical patent/NO20064431L/no
Publication of NO339114B1 publication Critical patent/NO339114B1/no

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
    • G10L19/02—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
    • G10L19/03—Spectral prediction for preventing pre-echo; Temporary noise shaping [TNS], e.g. in MPEG2 or MPEG4
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Stereophonic System (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Color Image Communication Systems (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Detergent Compositions (AREA)
  • Radio Relay Systems (AREA)

Abstract

Et apparat for å behandle et eller flere kanalsignaler omfatter en anordning (12) for å bestemme en likhet mellom en første av to kanaler og en andre av de to kanaler. Videre er en anordning (16) for å utføre en prediksjonsfiltrering av spektralkoeffisienter tilveiebrakt som er fonnet for å utføre en prediksjonsfiltrering med bare ett enkelt prediksjonsfilter (16a) for begge kanaler i tilfelle høy likhet med første og andre kanal, og å utføre en prediksjonsfiltrering med to separate prediksjonsfiltre (16b) i tilfelle ulikhet mellom første og andre kanal. Innførelse av stereoforekomster og en svekkelse av kodingsstyrken i stereokodingsteknikkene.
NO20064431A 2004-03-01 2006-09-29 Prosessering av et multikanalsignal NO339114B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004009954A DE102004009954B4 (de) 2004-03-01 2004-03-01 Vorrichtung und Verfahren zum Verarbeiten eines Multikanalsignals
PCT/EP2005/002110 WO2005083678A1 (de) 2004-03-01 2005-02-28 Vorrichtung und verfahren zum verarbeiten eines multikanalsignals

Publications (2)

Publication Number Publication Date
NO20064431L true NO20064431L (no) 2006-09-29
NO339114B1 NO339114B1 (no) 2016-11-14

Family

ID=34894904

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20064431A NO339114B1 (no) 2004-03-01 2006-09-29 Prosessering av et multikanalsignal

Country Status (18)

Country Link
US (1) US7340391B2 (no)
EP (1) EP1697930B1 (no)
JP (1) JP4413257B2 (no)
KR (1) KR100823097B1 (no)
CN (1) CN1926608B (no)
AT (1) ATE364882T1 (no)
AU (1) AU2005217517B2 (no)
BR (1) BRPI0507207B1 (no)
CA (1) CA2558161C (no)
DE (2) DE102004009954B4 (no)
DK (1) DK1697930T3 (no)
ES (1) ES2286798T3 (no)
HK (1) HK1095194A1 (no)
IL (1) IL177213A (no)
NO (1) NO339114B1 (no)
PT (1) PT1697930E (no)
RU (1) RU2332727C2 (no)
WO (1) WO2005083678A1 (no)

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US20100100372A1 (en) * 2007-01-26 2010-04-22 Panasonic Corporation Stereo encoding device, stereo decoding device, and their method
US7991622B2 (en) * 2007-03-20 2011-08-02 Microsoft Corporation Audio compression and decompression using integer-reversible modulated lapped transforms
US8086465B2 (en) 2007-03-20 2011-12-27 Microsoft Corporation Transform domain transcoding and decoding of audio data using integer-reversible modulated lapped transforms
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WO2009122757A1 (ja) * 2008-04-04 2009-10-08 パナソニック株式会社 ステレオ信号変換装置、ステレオ信号逆変換装置およびこれらの方法
CN101770776B (zh) 2008-12-29 2011-06-08 华为技术有限公司 瞬态信号的编码方法和装置、解码方法和装置及处理系统
EP2273493B1 (en) * 2009-06-29 2012-12-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Bandwidth extension encoding and decoding
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CN104269173B (zh) * 2014-09-30 2018-03-13 武汉大学深圳研究院 切换模式的音频带宽扩展装置与方法
RU2765565C2 (ru) 2015-09-25 2022-02-01 Войсэйдж Корпорейшн Способ и система для кодирования стереофонического звукового сигнала с использованием параметров кодирования первичного канала для кодирования вторичного канала
CN107659888A (zh) * 2017-08-21 2018-02-02 广州酷狗计算机科技有限公司 识别伪立体声音频的方法、装置及存储介质
WO2019091576A1 (en) 2017-11-10 2019-05-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoders, audio decoders, methods and computer programs adapting an encoding and decoding of least significant bits
EP3483883A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio coding and decoding with selective postfiltering
EP3483884A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Signal filtering
EP3483880A1 (en) * 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Temporal noise shaping
WO2019091573A1 (en) 2017-11-10 2019-05-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for encoding and decoding an audio signal using downsampling or interpolation of scale parameters
EP3483882A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Controlling bandwidth in encoders and/or decoders
EP3483879A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Analysis/synthesis windowing function for modulated lapped transformation
EP3483886A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Selecting pitch lag
EP3483878A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio decoder supporting a set of different loss concealment tools
CN108962268B (zh) * 2018-07-26 2020-11-03 广州酷狗计算机科技有限公司 确定单声道的音频的方法和装置
CN112151045B (zh) 2019-06-29 2024-06-04 华为技术有限公司 一种立体声编码方法、立体声解码方法和装置
CN111654745B (zh) * 2020-06-08 2022-10-14 海信视像科技股份有限公司 多声道的信号处理方法及显示设备
CN112053669B (zh) * 2020-08-27 2023-10-27 海信视像科技股份有限公司 一种人声消除方法、装置、设备及介质

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Also Published As

Publication number Publication date
PT1697930E (pt) 2007-09-25
ES2286798T3 (es) 2007-12-01
BRPI0507207A8 (pt) 2018-06-12
EP1697930B1 (de) 2007-06-13
JP4413257B2 (ja) 2010-02-10
BRPI0507207B1 (pt) 2018-12-26
RU2006134641A (ru) 2008-04-10
CA2558161A1 (en) 2005-09-09
JP2007525718A (ja) 2007-09-06
US20070033056A1 (en) 2007-02-08
DE502005000864D1 (de) 2007-07-26
US7340391B2 (en) 2008-03-04
CN1926608B (zh) 2010-05-05
KR100823097B1 (ko) 2008-04-18
DE102004009954A1 (de) 2005-09-29
CN1926608A (zh) 2007-03-07
RU2332727C2 (ru) 2008-08-27
ATE364882T1 (de) 2007-07-15
NO339114B1 (no) 2016-11-14
IL177213A0 (en) 2006-12-10
AU2005217517B2 (en) 2008-06-26
DE102004009954B4 (de) 2005-12-15
AU2005217517A1 (en) 2005-09-09
BRPI0507207A (pt) 2007-06-12
DK1697930T3 (da) 2007-10-08
IL177213A (en) 2011-10-31
WO2005083678A1 (de) 2005-09-09
CA2558161C (en) 2010-05-11
EP1697930A1 (de) 2006-09-06
HK1095194A1 (en) 2007-04-27
KR20060121982A (ko) 2006-11-29

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