%0 Journal Article
%T Voice Activity Detection Using Wavelets Multiresolution Spectrum and Short-time Adaptive Audio Mixing Algorithm<br>小波变分辨率频谱特征静音检测和短时自适应混音算法
%A XUE Wei
%A DU Si-dan
%A YE Ying-xian
%A <br>薛卫
%A 都思丹
%A 叶迎宪
%J 计算机科学
%D 2009
%I 
%X The proposed VAD uses MFCC of multiresolution spectrum and two classical audio parameters as audio feature,and prejudges silence by detection of multi-gate zero cross ratio,and classifies noise and voice by Support Vector Machines.New speech mixing algorithm used in Multipoint Control Unit(MCU) of conferences imposed short-time power of each audio stream as mixing weight vector,and was designed for parallel processing in program.Various experiments show,proposed VAD algorithm achieves overall better perform...
%K Voice activity detection
%K Wavelet
%K SVM
%K Short-time adaptive weighted<br>静音检测
%K 小波
%K 支持向量机
%K 短时自适应权重
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=E5AA31F226DA9230F4BA84A0028D085E&yid=DE12191FBD62783C&vid=933658645952ED9F&iid=DF92D298D3FF1E6E&sid=CC0ECB9C52F1B85F&eid=797D49279EA93BC4&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=17