H - Electricity – 04 – M
Patent
H - Electricity
04
M
H04M 3/56 (2006.01) H04M 9/08 (2006.01)
Patent
CA 2119778
An audio processing system (100) for use in a teleconferencing system (10) utilizes complementary comb filters (42, 52, 220, 320) in combination with an echo suppressor (210, 310) and/or a frequency scaler (60, 120) to substantially improve acoustic stability margin and reduce far-end talker echo.
Addeo Eric John
Desmarais Joseph John
Shtirmer Gennady
Bell Communications Research Inc.
Kirby Eades Gale Baker
LandOfFree
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