Title:
SYSTEM AND METHOD FOR ACOUSTIC ECHO CANCELLATION
Document Type and Number:
WIPO Patent Application WO/2014/066367
Kind Code:
A8
Abstract:
A system and method are presented for acoustic echo cancellation. The echo canceller performs reduction of acoustic and hybrid echoes which may arise in a situation such as a long-distance conference call with multiple speakers in varying environments, for example. Echo cancellation, in at least one embodiment, may be based on similarity measurement, statistical determination of echo cancellation parameters from historical values, frequency domain operation, double talk detection, packet loss detection, signal detection, and noise subtraction.
Inventors:
WYSS FELIX IMMANUEL (US)
VERGIN RIVAROL (US)
IYER ANANTH NAGARAJA (US)
GANAPATHIRAJU ARAVIND (IN)
VLACK KEVIN CHARLES (US)
CHELUVARAJA SRINATH (US)
VERGIN RIVAROL (US)
IYER ANANTH NAGARAJA (US)
GANAPATHIRAJU ARAVIND (IN)
VLACK KEVIN CHARLES (US)
CHELUVARAJA SRINATH (US)
Application Number:
PCT/US2013/066144
Publication Date:
July 31, 2014
Filing Date:
October 22, 2013
Export Citation:
Assignee:
INTERACTIVE INTELLIGENCE INC (US)
International Classes:
H04M9/08; H04M1/24
Attorney, Agent or Firm:
COLE, Troy, J. et al. (One American SquareSuite 290, Indianapolis IN, US)
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