WO2009046223A3 - Spatial audio analysis and synthesis for binaural reproduction and format conversion - Google Patents

Spatial audio analysis and synthesis for binaural reproduction and format conversion Download PDF

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Publication number
WO2009046223A3
WO2009046223A3 PCT/US2008/078632 US2008078632W WO2009046223A3 WO 2009046223 A3 WO2009046223 A3 WO 2009046223A3 US 2008078632 W US2008078632 W US 2008078632W WO 2009046223 A3 WO2009046223 A3 WO 2009046223A3
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WO
WIPO (PCT)
Prior art keywords
format conversion
synthesis
spatial audio
audio analysis
reproduction
Prior art date
Application number
PCT/US2008/078632
Other languages
French (fr)
Other versions
WO2009046223A2 (en
Inventor
Michael M Goodwin
Jean-Marc Jot
Mark Dolson
Original Assignee
Creative Tech Ltd
Michael M Goodwin
Jean-Marc Jot
Mark Dolson
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
Priority claimed from US12/243,963 external-priority patent/US8374365B2/en
Application filed by Creative Tech Ltd, Michael M Goodwin, Jean-Marc Jot, Mark Dolson filed Critical Creative Tech Ltd
Priority to GB1006665A priority Critical patent/GB2467668B/en
Priority to CN200880119120.6A priority patent/CN101884065B/en
Publication of WO2009046223A2 publication Critical patent/WO2009046223A2/en
Publication of WO2009046223A3 publication Critical patent/WO2009046223A3/en

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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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Stereophonic System (AREA)

Abstract

A frequency-domain method for format conversion or reproduction of 2-channel or multi-channel audio signals such as recordings is described. The reproduction is based on spatial analysis of directional cues in the input audio signal and conversion of these cues into audio output signal cues for two or more channels in the frequency domain.
PCT/US2008/078632 2007-10-03 2008-10-02 Spatial audio analysis and synthesis for binaural reproduction and format conversion WO2009046223A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1006665A GB2467668B (en) 2007-10-03 2008-10-02 Spatial audio analysis and synthesis for binaural reproduction and format conversion
CN200880119120.6A CN101884065B (en) 2007-10-03 2008-10-02 Spatial audio analysis and synthesis for binaural reproduction and format conversion

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US97734507P 2007-10-03 2007-10-03
US60/977,345 2007-10-03
US97743207P 2007-10-04 2007-10-04
US60/977,432 2007-10-04
US10200208P 2008-10-01 2008-10-01
US12/243,963 2008-10-01
US61/102,002 2008-10-01
US12/243,963 US8374365B2 (en) 2006-05-17 2008-10-01 Spatial audio analysis and synthesis for binaural reproduction and format conversion

Publications (2)

Publication Number Publication Date
WO2009046223A2 WO2009046223A2 (en) 2009-04-09
WO2009046223A3 true WO2009046223A3 (en) 2009-06-11

Family

ID=40526952

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/078632 WO2009046223A2 (en) 2007-10-03 2008-10-02 Spatial audio analysis and synthesis for binaural reproduction and format conversion

Country Status (3)

Country Link
CN (1) CN101884065B (en)
GB (1) GB2467668B (en)
WO (1) WO2009046223A2 (en)

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Also Published As

Publication number Publication date
GB2467668B (en) 2011-12-07
CN101884065A (en) 2010-11-10
CN101884065B (en) 2013-07-10
GB201006665D0 (en) 2010-06-09
GB2467668A (en) 2010-08-11
WO2009046223A2 (en) 2009-04-09

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