NO20070034L - Generering av et flerkanals utgangssignal - Google Patents

Generering av et flerkanals utgangssignal

Info

Publication number
NO20070034L
NO20070034L NO20070034A NO20070034A NO20070034L NO 20070034 L NO20070034 L NO 20070034L NO 20070034 A NO20070034 A NO 20070034A NO 20070034 A NO20070034 A NO 20070034A NO 20070034 L NO20070034 L NO 20070034L
Authority
NO
Norway
Prior art keywords
channel
cancellation
channels
generating
output signal
Prior art date
Application number
NO20070034A
Other languages
English (en)
Other versions
NO338725B1 (no
Inventor
Juergen Herre
Johannes Hilpert
Christof Faller
Sascha Disch
Original Assignee
Agere Systems Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34966842&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NO20070034(L) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Agere Systems Inc filed Critical Agere Systems Inc
Publication of NO20070034L publication Critical patent/NO20070034L/no
Publication of NO338725B1 publication Critical patent/NO338725B1/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
    • G10L19/008—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
    • G10L19/04—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 predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Physics (AREA)
  • Stereophonic System (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Logic Circuits (AREA)

Abstract

Et apparat for å generere et flerkanals utgangssignal utfører en senterkanalkansellering for å oppnå forbedrede basiskanaler for rekonstruering av venstre utgangskanaler eller høyre utgangskanaler. Især omfatter apparatet en kanselleringskanalkalkulator (20) for å beregne en kanselleringskanal ved å bruke informasjon tilknyttet den opprinnelige senterkanal som er tilgjengelig ved dekoderen. Innretningen omfatter videre en kombineringsenhet (22) for å kombinere en overføringskanal med kanselleringskanalen. Endelig omfatter apparatet videre en rekonstruktør (26) for å generere flerkanalsutgangssignalet. På grunn av senterkanalkanselleringen vil kanalrekonstruktøren (26) ikke bare bruke en forskjellig basiskanal for rekonstruering av senterkanalen, men også bruke basiskanaler som er forskjellig fra overføringskanalene for å rekonstruere venstre og høyre utgangssignaler som har en redusert eller også fullstendig kansellert påvirkning av den opprinnelige senterkanal.
NO20070034A 2004-07-09 2007-01-02 Generering av et flerkanals utgangssignal NO338725B1 (no)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US58657804P 2004-07-09 2004-07-09
US10/935,061 US7391870B2 (en) 2004-07-09 2004-09-07 Apparatus and method for generating a multi-channel output signal
PCT/EP2005/005199 WO2006005390A1 (en) 2004-07-09 2005-05-12 Apparatus and method for generating a multi-channel output signal

Publications (2)

Publication Number Publication Date
NO20070034L true NO20070034L (no) 2007-02-06
NO338725B1 NO338725B1 (no) 2016-10-10

Family

ID=34966842

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20070034A NO338725B1 (no) 2004-07-09 2007-01-02 Generering av et flerkanals utgangssignal

Country Status (15)

Country Link
US (1) US7391870B2 (no)
EP (1) EP1774515B1 (no)
JP (1) JP4772043B2 (no)
KR (1) KR100908080B1 (no)
CN (1) CN1985303B (no)
AT (1) ATE556406T1 (no)
AU (1) AU2005262025B2 (no)
BR (1) BRPI0512763B1 (no)
CA (1) CA2572989C (no)
ES (1) ES2387248T3 (no)
NO (1) NO338725B1 (no)
PT (1) PT1774515E (no)
RU (1) RU2361185C2 (no)
TW (1) TWI305639B (no)
WO (1) WO2006005390A1 (no)

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JP6817433B2 (ja) 2016-11-08 2021-01-20 フラウンホファー ゲセルシャフト ツール フェールデルンク ダー アンゲヴァンテン フォルシュンク エー．ファオ． 少なくとも２つのチャンネルをダウンミックスするためのダウンミキサおよび方法ならびにマルチチャンネルエンコーダおよびマルチチャンネルデコーダ
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CN120526780A (zh) * 2020-03-09 2025-08-22 日本电信电话株式会社 声音信号缩混方法、编码方法、缩混装置及程序
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Also Published As

Publication number Publication date
EP1774515A1 (en) 2007-04-18
EP1774515B1 (en) 2012-05-02
CA2572989A1 (en) 2006-01-19
BRPI0512763A (pt) 2008-04-08
RU2361185C2 (ru) 2009-07-10
CA2572989C (en) 2011-08-09
JP4772043B2 (ja) 2011-09-14
KR20070027692A (ko) 2007-03-09
HK1099901A1 (en) 2007-08-24
TW200617884A (en) 2006-06-01
JP2008505368A (ja) 2008-02-21
US7391870B2 (en) 2008-06-24
US20060009225A1 (en) 2006-01-12
PT1774515E (pt) 2012-08-09
ES2387248T3 (es) 2012-09-19
NO338725B1 (no) 2016-10-10
TWI305639B (en) 2009-01-21
RU2007104933A (ru) 2008-08-20
AU2005262025B2 (en) 2008-10-09
KR100908080B1 (ko) 2009-07-15
CN1985303A (zh) 2007-06-20
BRPI0512763B1 (pt) 2018-08-28
AU2005262025A1 (en) 2006-01-19
CN1985303B (zh) 2011-06-15
ATE556406T1 (de) 2012-05-15
WO2006005390A1 (en) 2006-01-19

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