METHOD AND APPARATUS FOR ACTIVE NOISE REDUCTION

Provided in the embodiments of the present application are a method and an apparatus for active noise reduction, relating to the technical field of audio, and capable of improving the noise reduction effect of earphones. The method is used in an earphone having an ANC function, and the method comprises: when the earphone is in an ANC working mode, acquiring a first set of wave filter parameters and using the first set of wave filter parameters to perform noise reduction. The first set of wave filter parameters is one set of N1 sets of wave filter parameters pre-stored by the earphone, the N1 sets of wave filter parameters respectively being used for performing ambient noise reduction in N1 leakage states, and the N1 leakage states being formed by the earphone and N1 different ear canal environments. In the current wearing state of the earphone, for the same ambient noise, the noise reduction effect when the earphone uses the first set of wave filter parameters is better than the noise reduction effect when th