Patent ID: 8374358

Claim:
A computer implemented method for determining a noise reference signal for noise compensation, comprising: in a first computer process, receiving a first audio signal on a first signal path and a second audio signal on a second signal path; in a second computer process, filtering the first audio signal using a first adaptive filter to obtain a first filtered audio signal; in a third computer process, filtering the second audio signal using a second adaptive filter to obtain a second filtered audio signal; and in a fourth computer process, combining the first and the second filtered audio signal to obtain the noise reference signal; wherein the first and the second adaptive filter are adapted such as to minimize a wanted signal component in the noise reference signal; wherein a first transfer function models a transfer from a wanted signal originating from a wanted sound source to the first signal path and a second transfer function models a transfer from the wanted signal originating from the wanted sound source to the second signal path, and wherein the transfer function of the first adaptive filter is based on the second transfer function and wherein the transfer function of the second adaptive filter is based on the first transfer function.