%0 Journal Article
%T A Nearfield Beamforming Method for Microphone Array Based on Speech Enhancement<br>基于近场波束形成的麦克风阵列语音增强方法
%A Wang Dong-xia
%A Yin Fu-liang
%A <br>王冬霞
%A 殷福亮
%J 电子与信息学报
%D 2007
%I 
%X When using a microphone array for hands-free speech acquisition in enclosure environments, one can be faced with the problem of wave propagation in near-field. In this paper, therefore, a near-field beamforming method for microphone array based speech enhancement is introduced which modified subband adaptive beamforming method. The proposed method takes full advantage of spherical nature of the sound wavefront, in which the distance discrimination reduces the effect of reverberation as well as noise on the desired speech signal. Simulations experimental results demonstrate that the proposed microphone array based speech enhancement method exhibits a better noise reduction performance than other methods.
%K Microphone array
%K Speech enhancement
%K Near-field beamforming<br>麦克风阵列
%K 语音增强
%K 近场波束形成
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=C772890F1D83050E&yid=A732AF04DDA03BB3&vid=771469D9D58C34FF&iid=CA4FD0336C81A37A&sid=5D71B28100102720&eid=09ABD5535D9B6D45&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=1&reference_num=14