An active noise control system for tuning an acoustic noise signal at a listening position; the system comprises: a microphone that converts acoustic signals (y'_a, d) into electric signals (e_a) and that is arranged at the listening position; a loudspeaker that converts electrical signals (y_a) into acoustic signals and that radiates a noise cancelling signal via a secondary path to the microphone; a secondary noise source that generates an electrical noise signal (x) modeling the acoustic noise signal; a first filter that has a controllable first transfer characteristic (W_a) and that is connected between the secondary noise source and the loudspeaker; a second filter that has a second transfer characteristic (S_hat) and that is connected to the secondary noise source; and a noise signal estimator (7, 8) that is connected downstream of the first filter and the microphone, and that provides an estimate of the acoustic noise signal (d_hat), in which the second transfer characteristic (S_hat) is an estimate of the transfer characteristic of the secondary path; a third filter that has a controllable third transfer characteristic (W_p) and that is connected downstream of the second filter; an adder that is connected downstream of the third filter and the noise signal estimator (7, 8); and an adaptive filter controller that is connected between the second filter and the adder, and that controls the third transfer characteristic (W-p) of the third filter; in which the first transfer characteristic (W_a) is controlled by the third transfer characteristic (W_p) via a filter coefficient copy path; characterized in that a first weighting element is connected into the filter coefficient copy path and/or a second weighting element is connected between the noise signal estimator (7, 8) and the adder. a microphone that converts acoustic signals (y'_a, d) into electric signals (e_a) and that is arranged at the listening position; a loudspeaker that converts electrical signals (y_a) into acoustic signals and that radiates a noise cancelling signal via a secondary path to the microphone; a secondary noise source that generates an electrical noise signal (x) modeling the acoustic noise signal; a first filter that has a controllable first transfer characteristic (W_a) and that is connected between the secondary noise source and the loudspeaker; a second filter that has a second transfer characteristic (S_hat) and that is connected to the secondary noise source; and a noise signal estimator (7, 8) that is connected downstream of the first filter and the microphone, and that provides an estimate of the acoustic noise signal (d_hat), in which the second transfer characteristic (S_hat) is an estimate of the transfer characteristic of the secondary path; a third filter that has a controllable third transfer characteristic (W_p) and that is connected downstream of the second filter; an adder that is connected downstream of the third filter and the noise signal estimator (7, 8); and an adaptive filter controller that is connected between the second filter and the adder, and that controls the third transfer characteristic (W-p) of the third filter; in which the first transfer characteristic (W_a) is controlled by the third transfer characteristic (W_p) via a filter coefficient copy path; characterized in that a first weighting element is connected into the filter coefficient copy path and/or a second weighting element is connected between the noise signal estimator (7, 8) and the adder.