Smart Microphone Arrays for Speech Sources Separation and Speaker Tracking
Jiang Du · Dianzi xuebao · 2005
A new speech sources separation and speaker tracking technique is introduced based on microphone arrays.By means of spatial property of the received speech signals from microphone arrays,this method utilizes beamforming to estimate the DOA of the speaker of interest,and attenuates unwanted voices by nulling other directions.Considering the speech environments where the speaker may freely move and the background voices exist,an adaptive algorithm is used to track the movements and the source direction variations automatically.Computer simulations validate the effectiveness of the technique.Compared with the conventional methods,the scheme needs no training sequence,and have great potential practical advantages.