www.pudn.com > voicebox2.zip > LPCRF2AO.M

function ao=lpcrf2ao(rf) 
%LPCRF2AO Convert reflection coefficients to area ratios AO=(RF) 
% ao(k) is the ratio between the k'th and the (k+1)'th segment 
 
 
%      Copyright (C) Mike Brookes 1997 
% 
%      Last modified Tue May 12 16:19:30 1998 
% 
%   VOICEBOX home page: http://www.ee.ic.ac.uk/hp/staff/dmb/voicebox/voicebox.html 
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ao =(1-rf)./(1+rf);