SE0402772L - Device and process method for surround sound - Google Patents

Device and process method for surround sound

Info

Publication number
SE0402772L
SE0402772L SE0402772A SE0402772A SE0402772L SE 0402772 L SE0402772 L SE 0402772L SE 0402772 A SE0402772 A SE 0402772A SE 0402772 A SE0402772 A SE 0402772A SE 0402772 L SE0402772 L SE 0402772L
Authority
SE
Sweden
Prior art keywords
virtual
surround sound
format
coincident
signals
Prior art date
Application number
SE0402772A
Other languages
Swedish (sv)
Other versions
SE0402772D0 (en
SE528706C2 (en
Inventor
Bengt-Inge Dalenbaeck
Original Assignee
Bengt Inge Dalenbaeck Med Catt
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 Bengt Inge Dalenbaeck Med Catt filed Critical Bengt Inge Dalenbaeck Med Catt
Priority to SE0402772A priority Critical patent/SE528706C2/en
Publication of SE0402772D0 publication Critical patent/SE0402772D0/en
Priority to PCT/SE2005/001659 priority patent/WO2006052188A1/en
Publication of SE0402772L publication Critical patent/SE0402772L/en
Publication of SE528706C2 publication Critical patent/SE528706C2/en

Links

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 
    • 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)

Abstract

A surround sound processing arrangement where directionally encoded audio signals in a B-format (W, X, Y, Z) or B-format-like signals are via a primary matrix, synthesizing virtual arbitrary microphones, encoded to intermediate channels used as virtual loudspeaker feeds. These virtual loudspeaker feeds are via a secondary matrix transcoded to multiple channels corresponding to coincident or non-coincident virtual arbitrary microphone signals suitable for subsequent mono, stereo or surround sound loudspeaker replay. The described transcoding process enables variation of the properties of the reproduced sound field regarding parameters such as localization, depth, image size, spaciousness, envelopment, and particularly can offer a stable frontal image and a large listening area size.
SE0402772A 2004-11-12 2004-11-12 Device and process method for surround sound SE528706C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE0402772A SE528706C2 (en) 2004-11-12 2004-11-12 Device and process method for surround sound
PCT/SE2005/001659 WO2006052188A1 (en) 2004-11-12 2005-11-07 Surround sound processing arrangement and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0402772A SE528706C2 (en) 2004-11-12 2004-11-12 Device and process method for surround sound

Publications (3)

Publication Number Publication Date
SE0402772D0 SE0402772D0 (en) 2004-11-12
SE0402772L true SE0402772L (en) 2006-07-13
SE528706C2 SE528706C2 (en) 2007-01-30

Family

ID=33488235

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0402772A SE528706C2 (en) 2004-11-12 2004-11-12 Device and process method for surround sound

Country Status (2)

Country Link
SE (1) SE528706C2 (en)
WO (1) WO2006052188A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9332372B2 (en) 2010-06-07 2016-05-03 International Business Machines Corporation Virtual spatial sound scape
EP2469741A1 (en) * 2010-12-21 2012-06-27 Thomson Licensing Method and apparatus for encoding and decoding successive frames of an ambisonics representation of a 2- or 3-dimensional sound field
WO2014159376A1 (en) * 2013-03-12 2014-10-02 Dolby Laboratories Licensing Corporation Method of rendering one or more captured audio soundfields to a listener
US9830918B2 (en) 2013-07-05 2017-11-28 Dolby International Ab Enhanced soundfield coding using parametric component generation
CN109756683B (en) * 2017-11-02 2024-06-04 深圳市裂石影音科技有限公司 Panoramic audio and video recording method and device, storage medium and computer equipment
CN109379694B (en) * 2018-11-01 2020-08-18 华南理工大学 Virtual replay method of multi-channel three-dimensional space surround sound

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9211756D0 (en) * 1992-06-03 1992-07-15 Gerzon Michael A Stereophonic directional dispersion method
US6072878A (en) * 1997-09-24 2000-06-06 Sonic Solutions Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics
US20030191623A1 (en) * 2002-02-25 2003-10-09 Oak Technology, Inc. Computer system capable of executing a remote operating system

Also Published As

Publication number Publication date
WO2006052188A1 (en) 2006-05-18
SE0402772D0 (en) 2004-11-12
WO2006052188B1 (en) 2006-12-28
SE528706C2 (en) 2007-01-30

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