Voice noise reduction method and device based on microphone array, and storage medium

The invention discloses a voice noise reduction method based on a microphone array, and solves the problems that in the prior art, the complexity of solving a filter is rapidly increased along with the increase of the length of the filter, and the tracking capability for the change of the statistical characteristics of voice signals and noise is reduced. Preprocessing the noisy voice signal, and determining a frequency domain noisy voice signal; estimating statistical characteristics of the frequency domain noisy voice signal and the noise signal; dividing the microphone array into a plurality of sub-arrays, respectively estimating a plurality of sub-filters, and determining a frequency domain noise reduction filter; according to the invention, noise reduction processing is carried out on the frequency domain noisy voice signal according to the frequency domain noise reduction filter, and the frequency domain noisy voice signal is converted into the time domain noise reduction voice signal, so that the number