Microphone signalbeamforming processing method, electronic device, and non-transitory storage medium

Abstract

A microphone signal beamforming processing method and related products are provided. The method includes: obtaining a frequency domain signal of each of at least three microphones by performing time-frequency transforming on first output signals, and performing a plurality of different groups of beamforming preprocessing on the frequency domain signals; performing a plurality of different groups of cross-pattern analysis on the plurality of beam signals to obtain a plurality of positive weighting coefficients, multiplying the plurality of positive weighting coefficients to obtain a combined coefficient, and multiplying the combined coefficient with the frequency domain signal of any one of the at least three microphones to obtain a weighted spectral component; and performing inverse time-frequency transforming on the weighted spectral component. In the disclosure, channel separation is better achieved using combined cross-pattern analysis than using traditional methods, resulting in narrower beams with excellent sidelobe suppression and higher signal-to-noise ratio.