WO2000019415A3 - Method and apparatus for three-dimensional audio display - Google Patents

Method and apparatus for three-dimensional audio display Download PDF

Info

Publication number
WO2000019415A3
WO2000019415A3 PCT/US1999/022259 US9922259W WO0019415A3 WO 2000019415 A3 WO2000019415 A3 WO 2000019415A3 US 9922259 W US9922259 W US 9922259W WO 0019415 A3 WO0019415 A3 WO 0019415A3
Authority
WO
WIPO (PCT)
Prior art keywords
decoders
listener
encoding format
directional
channel encoding
Prior art date
Application number
PCT/US1999/022259
Other languages
French (fr)
Other versions
WO2000019415A2 (en
Inventor
Jean-Marc Jot
Scott Wardle
Original Assignee
Creative Tech Ltd
Jot Jean Marc
Scott Wardle
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 Creative Tech Ltd, Jot Jean Marc, Scott Wardle filed Critical Creative Tech Ltd
Priority to US09/806,193 priority Critical patent/US7231054B1/en
Priority to AU64006/99A priority patent/AU6400699A/en
Publication of WO2000019415A2 publication Critical patent/WO2000019415A2/en
Publication of WO2000019415A3 publication Critical patent/WO2000019415A3/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
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/01—Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
    • 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)

Abstract

This invention addresses sound recording and mixing methods for 3-D audio rendering of multiple sound sources over headphones or loudspeaker playback systems. Economical techniques are provided, whereby directional panning and mixing of sounds are performed in a multi-channel encoding format which preserves interaural time difference information and does not contain head-related spectral information. Decoders are provided for converting the multi-channel encoded signal into signals for playback over headphones or various loudspeaker arrangements. These decoders ensure faithful reproduction of directional auditory information at the eardrums of the listener and can be adapted to the number and geometrical layout of the loudspeakers and the individual characteristics of the listener. A particular multi-channel encoding format is disclosed, which, in addition to the above advantages, is associated with a practical microphone technique for producing 3-D audio recordings compliant with the decoders described.
PCT/US1999/022259 1998-09-25 1999-09-24 Method and apparatus for three-dimensional audio display WO2000019415A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US09/806,193 US7231054B1 (en) 1999-09-24 1999-09-24 Method and apparatus for three-dimensional audio display
AU64006/99A AU6400699A (en) 1998-09-25 1999-09-24 Method and apparatus for three-dimensional audio display

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10188498P 1998-09-25 1998-09-25
US60/101,884 1998-09-25

Publications (2)

Publication Number Publication Date
WO2000019415A2 WO2000019415A2 (en) 2000-04-06
WO2000019415A3 true WO2000019415A3 (en) 2001-03-08

Family

ID=22286962

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/022259 WO2000019415A2 (en) 1998-09-25 1999-09-24 Method and apparatus for three-dimensional audio display

Country Status (2)

Country Link
AU (1) AU6400699A (en)
WO (1) WO2000019415A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9100749B2 (en) 2007-05-04 2015-08-04 Bose Corporation System and method for directionally radiating sound

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6072878A (en) 1997-09-24 2000-06-06 Sonic Solutions Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics
AUPQ570700A0 (en) * 2000-02-17 2000-03-09 Lake Technology Limited Virtual audio environment
CA2406926A1 (en) * 2000-04-19 2001-11-01 Sonic Solutions Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics in three dimensions
GB2379147B (en) * 2001-04-18 2003-10-22 Univ York Sound processing
US8139797B2 (en) 2002-12-03 2012-03-20 Bose Corporation Directional electroacoustical transducing
US7676047B2 (en) 2002-12-03 2010-03-09 Bose Corporation Electroacoustical transducing with low frequency augmenting devices
FR2866974A1 (en) * 2004-03-01 2005-09-02 France Telecom Audio data processing method for e.g. documentary recording, involves encoding sound signals, and applying spatial component amplitude attenuation in frequency range defined by component order and distance between source and reference point
US9215544B2 (en) 2006-03-09 2015-12-15 Orange Optimization of binaural sound spatialization based on multichannel encoding
JP4949477B2 (en) 2006-09-25 2012-06-06 ドルビー ラボラトリーズ ライセンシング コーポレイション Sound field with improved spatial resolution of multi-channel audio playback system by extracting signals with higher-order angle terms
US8483413B2 (en) 2007-05-04 2013-07-09 Bose Corporation System and method for directionally radiating sound
US9560448B2 (en) 2007-05-04 2017-01-31 Bose Corporation System and method for directionally radiating sound
EP2154911A1 (en) 2008-08-13 2010-02-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. An apparatus for determining a spatial output multi-channel audio signal
ES2690164T3 (en) 2009-06-25 2018-11-19 Dts Licensing Limited Device and method to convert a spatial audio signal
EP2268064A1 (en) * 2009-06-25 2010-12-29 Berges Allmenndigitale Rädgivningstjeneste Device and method for converting spatial audio signal
KR20120004909A (en) * 2010-07-07 2012-01-13 삼성전자주식회사 Method and apparatus for 3d sound reproducing
EP2738962A1 (en) 2012-11-29 2014-06-04 Thomson Licensing Method and apparatus for determining dominant sound source directions in a higher order ambisonics representation of a sound field
WO2018213159A1 (en) * 2017-05-15 2018-11-22 Dolby Laboratories Licensing Corporation Methods, systems and apparatus for conversion of spatial audio format(s) to speaker signals
EP3625974B1 (en) 2017-05-15 2020-12-23 Dolby Laboratories Licensing Corporation Methods, systems and apparatus for conversion of spatial audio format(s) to speaker signals
WO2021138517A1 (en) 2019-12-30 2021-07-08 Comhear Inc. Method for providing a spatialized soundfield
CN113362805B (en) * 2021-06-18 2022-06-21 四川启睿克科技有限公司 Chinese and English speech synthesis method and device with controllable tone and accent

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995031881A1 (en) * 1994-05-11 1995-11-23 Aureal Semiconductor Inc. Three-dimensional virtual audio display employing reduced complexity imaging filters
US5638343A (en) * 1995-07-13 1997-06-10 Sony Corporation Method and apparatus for re-recording multi-track sound recordings for dual-channel playbacK
US5682461A (en) * 1992-03-24 1997-10-28 Institut Fuer Rundfunktechnik Gmbh Method of transmitting or storing digitalized, multi-channel audio signals

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5682461A (en) * 1992-03-24 1997-10-28 Institut Fuer Rundfunktechnik Gmbh Method of transmitting or storing digitalized, multi-channel audio signals
WO1995031881A1 (en) * 1994-05-11 1995-11-23 Aureal Semiconductor Inc. Three-dimensional virtual audio display employing reduced complexity imaging filters
US5638343A (en) * 1995-07-13 1997-06-10 Sony Corporation Method and apparatus for re-recording multi-track sound recordings for dual-channel playbacK

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9100749B2 (en) 2007-05-04 2015-08-04 Bose Corporation System and method for directionally radiating sound
US9100748B2 (en) 2007-05-04 2015-08-04 Bose Corporation System and method for directionally radiating sound

Also Published As

Publication number Publication date
WO2000019415A2 (en) 2000-04-06
AU6400699A (en) 2000-04-17

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