ATE495635T1 - Verbesserte räumliche auflösung des schallfeldes für mehrkanal-tonwiedergabesysteme mittels ableitung von signalen mit winkelgrössen hoher ordnung - Google Patents

Verbesserte räumliche auflösung des schallfeldes für mehrkanal-tonwiedergabesysteme mittels ableitung von signalen mit winkelgrössen hoher ordnung

Info

Publication number
ATE495635T1
ATE495635T1 AT07838488T AT07838488T ATE495635T1 AT E495635 T1 ATE495635 T1 AT E495635T1 AT 07838488 T AT07838488 T AT 07838488T AT 07838488 T AT07838488 T AT 07838488T AT E495635 T1 ATE495635 T1 AT E495635T1
Authority
AT
Austria
Prior art keywords
sound field
signals
spatial resolution
audio signals
derivation
Prior art date
Application number
AT07838488T
Other languages
English (en)
Inventor
David Stanley Mcgrath
Original Assignee
Dolby Lab Licensing Corp
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 Dolby Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Application granted granted Critical
Publication of ATE495635T1 publication Critical patent/ATE495635T1/de

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Classifications

    • 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
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/027—Spatial or constructional arrangements of microphones, e.g. in dummy heads
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/15—Aspects of sound capture and related signal processing for recording or reproduction
    • 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
    • H04S2420/11—Application of ambisonics in stereophonic audio systems

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
AT07838488T 2006-09-25 2007-09-19 Verbesserte räumliche auflösung des schallfeldes für mehrkanal-tonwiedergabesysteme mittels ableitung von signalen mit winkelgrössen hoher ordnung ATE495635T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US84732206P 2006-09-25 2006-09-25
PCT/US2007/020284 WO2008039339A2 (en) 2006-09-25 2007-09-19 Improved spatial resolution of the sound field for multi-channel audio playback systems by deriving signals with high order angular terms

Publications (1)

Publication Number Publication Date
ATE495635T1 true ATE495635T1 (de) 2011-01-15

Family

ID=39189341

Family Applications (1)

Application Number Title Priority Date Filing Date
AT07838488T ATE495635T1 (de) 2006-09-25 2007-09-19 Verbesserte räumliche auflösung des schallfeldes für mehrkanal-tonwiedergabesysteme mittels ableitung von signalen mit winkelgrössen hoher ordnung

Country Status (10)

Country Link
US (1) US8103006B2 (de)
EP (1) EP2070390B1 (de)
JP (1) JP4949477B2 (de)
CN (1) CN101518101B (de)
AT (1) ATE495635T1 (de)
DE (1) DE602007011955D1 (de)
ES (1) ES2359752T3 (de)
RU (1) RU2420027C2 (de)
TW (1) TWI458364B (de)
WO (1) WO2008039339A2 (de)

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EP2645748A1 (de) 2012-03-28 2013-10-02 Thomson Licensing Verfahren und Vorrichtung zum Decodieren von Stereolautsprechersignalen aus einem Ambisonics-Audiosignal höherer Ordnung
EP2688066A1 (de) 2012-07-16 2014-01-22 Thomson Licensing Verfahren und Vorrichtung zur Codierung von Mehrkanal-HOA-Audiosignalen zur Rauschreduzierung sowie Verfahren und Vorrichtung zur Decodierung von Mehrkanal-HOA-Audiosignalen zur Rauschreduzierung
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EP2782094A1 (de) * 2013-03-22 2014-09-24 Thomson Licensing Verfahren und Vorrichtung zur Erhöhung der Richtwirkung eines Ambisonics-Signals erster Ordnung
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CN104244164A (zh) * 2013-06-18 2014-12-24 杜比实验室特许公司 生成环绕立体声声场
EP3056025B1 (de) * 2013-10-07 2018-04-25 Dolby Laboratories Licensing Corporation System und verfahren zur verarbeitung von räumlichem audio
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US10109288B2 (en) 2015-05-27 2018-10-23 Apple Inc. Dynamic range and peak control in audio using nonlinear filters
US10932078B2 (en) 2015-07-29 2021-02-23 Dolby Laboratories Licensing Corporation System and method for spatial processing of soundfield signals
US10271157B2 (en) * 2016-05-31 2019-04-23 Gaudio Lab, Inc. Method and apparatus for processing audio signal
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JP7196399B2 (ja) * 2017-03-14 2022-12-27 株式会社リコー 音響装置、音響システム、方法およびプログラム
US11277705B2 (en) * 2017-05-15 2022-03-15 Dolby Laboratories Licensing Corporation Methods, systems and apparatus for conversion of spatial audio format(s) to speaker signals
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Also Published As

Publication number Publication date
RU2420027C2 (ru) 2011-05-27
TW200822781A (en) 2008-05-16
DE602007011955D1 (de) 2011-02-24
EP2070390A2 (de) 2009-06-17
RU2009115648A (ru) 2010-11-10
US20090316913A1 (en) 2009-12-24
JP2010504717A (ja) 2010-02-12
ES2359752T3 (es) 2011-05-26
US8103006B2 (en) 2012-01-24
WO2008039339A3 (en) 2008-05-29
WO2008039339A2 (en) 2008-04-03
CN101518101A (zh) 2009-08-26
JP4949477B2 (ja) 2012-06-06
TWI458364B (zh) 2014-10-21
CN101518101B (zh) 2012-04-18
EP2070390B1 (de) 2011-01-12

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