Title:
MULTI-CHANNEL AUDIO PROCESSING USING SINGLE-CHANNEL COMPONENTS
Document Type and Number:
WIPO Patent Application WO/2012/161891
Kind Code:
A3
Abstract:
Methods and systems for processing multi-channel audio streams using one or more arrangements of single-channel components are provided. One single-channel component is arranged at a near-end channel of a signal transmission path for every far-end/near-end channel combination in the path. Each component of a group of first components (1, N+1, N(M-1)+1) located at the near-end channels (200A, 200B, 200M, respectively) receive render stream input (e.g., signal-processing information) from a first far-end channel (250A). Similarly, each component of a group of second components (2, N+2, N(M-1)+2) located at the near-end channels (200A, 200B, 200M, respectively) receive render stream input from a second far-end channel (250B). Additional groups of single-channel near-end components receive far-end channel input in this manner.
Inventors:
MACDONALD ANDREW JOHN (US)
SKOGLUND JAN (US)
VOLCKER BJOERN (SE)
SKOGLUND JAN (US)
VOLCKER BJOERN (SE)
Application Number:
PCT/US2012/033978
Publication Date:
January 17, 2013
Filing Date:
April 18, 2012
Export Citation:
Assignee:
GOOGLE INC (US)
MACDONALD ANDREW JOHN (US)
SKOGLUND JAN (US)
VOLCKER BJOERN (SE)
MACDONALD ANDREW JOHN (US)
SKOGLUND JAN (US)
VOLCKER BJOERN (SE)
International Classes:
H04M9/08
Foreign References:
| EP1612963B1 | 2008-11-12 | |||
| US20100074433A1 | 2010-03-25 | |||
| EP0944228B1 | 2003-06-04 | |||
| US5706344A | 1998-01-06 |
Other References:
BUCHNER H ET AL: "Generalized multichannel frequency-domain adaptive filtering: efficient realization and application to hands-free speech communication", SIGNAL PROCESSING, ELSEVIER SCIENCE PUBLISHERS B.V. AMSTERDAM, NL, vol. 85, no. 3, 1 March 2005 (2005-03-01), pages 549 - 570, XP027671015, ISSN: 0165-1684, [retrieved on 20050301]
MOHAN SONDHI M ET AL: "Acoustic Echo Cancellation for Stereophonic Teleconferencing", APPLICATIONS OF SIGNAL PROCESSING TO AUDIO AND ACOUSTICS, 1991. FINAL PROGRAM AND PAPER SUMMARIES., 1991 IEEE ASSP WORKSHOP ON, IEEE, 20 October 1991 (1991-10-20), pages _141 - _142, XP032159793, DOI: 10.1109/ASPAA.1991.634135
MOHAN SONDHI M ET AL: "Acoustic Echo Cancellation for Stereophonic Teleconferencing", APPLICATIONS OF SIGNAL PROCESSING TO AUDIO AND ACOUSTICS, 1991. FINAL PROGRAM AND PAPER SUMMARIES., 1991 IEEE ASSP WORKSHOP ON, IEEE, 20 October 1991 (1991-10-20), pages _141 - _142, XP032159793, DOI: 10.1109/ASPAA.1991.634135
Attorney, Agent or Firm:
CAMMARATA, Michael (Stewart Kolasch & Birch, LLP,P.O. Box 74, Falls Church Virginia, US)
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