%0 Journal Article
%T Research and application of outdoor sound field in virtual environment for mobile receiver<br>接收点移动的室外虚拟声场模拟研究与应用
%A TAN Tong-de
%A SHI Xiao-fei
%A ZHAO Xin-can
%A CHANG Cun-hong
%A <br>谭同德
%A 史晓菲
%A 赵新灿
%A 常村红
%J 计算机应用
%D 2009
%I 
%X Ray-tracing is one of the most widely used ways of sound field simulation, but it usually depends on the specific location of the receiving point; therefore, it cannot be used in virtual environment with a mobile receiver directly. A method of step-length by defining the receiver dynamically based on ray-tracing was proposed, which solved the problem between sound effect and computational efficiency, especially for the outdoor sound field simulation in large-scale virtual environments. The improved algorithm was implemented in VS 2005 and Matlab, and it can achieve satisfactory sound effect and computational efficiency.
%K outdoor sound field
%K step-length
%K ray-tracing
%K impulse response<br>室外声场
%K 步长法
%K 声线跟踪
%K 脉冲响应
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=831E194C147C78FAAFCC50BC7ADD1732&aid=288FA4D0881C2FE9FF1C6E4D17D131C3&yid=DE12191FBD62783C&vid=771469D9D58C34FF&iid=B31275AF3241DB2D&sid=D9E4B4338A9AF29A&eid=617DEAEB2884AFC7&journal_id=1001-9081&journal_name=计算机应用&referenced_num=0&reference_num=6