SPEECH SIGNAL PROCESSING METHOD AND DEVICE BASED ON MICROPHONE ARRAY

摘要

The present invention discloses a speech signal processing method based on a microphone array, and the microphone array is composed of more than two directional microphones. The method comprises the following steps: determining the energy values of speech signals of the same frame, received by each directional microphone; determining adjustment parameters of speech signals of the same frame according to energy values; determining the weight of each sampling point signal in the speech signals according to the adjustment parameter of each speech signal, multiplying each sampling point signal in each speech signal by each weight, accumulating product values of sampling point signals corresponding to each speech signal, and outputting accumulated sampling point signals in sequence. The present invention also discloses a speech signal processing device based on the microphone array. The present invention has a simple compute mode, needs no complex calculation and circuit, and has favorable reverberation resistance and orientated pickup functions.