Patent ID: 11863702
Assignee: NOKIA TECHNOLOGIES OY
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. The apparatus of claim 12, wherein controlling the first filter and second filter with different values of corresponding first and second respective control parameters further comprises:
determining two estimates of residual far-end to near-end ratio:
a first estimate of the residual far-end to near-end ratio based on past history of the first estimate and of a second estimate, the first estimate selected as being a low value of the far-end to near-end ratio;
the second estimate being an upper bound on the residual far-end to near-end ratio, selected as a highest value the upper bound could be, based on observations of signals from the one or more microphones and the far-end signals;

setting a first confidence parameter of the first filter to the first estimate;
setting a second confidence parameter of the second filter to the second estimate.