V_LPCAA2AO LPC: Convert area function to area ratios AO=(AA)
0001 function ao=v_lpcaa2ao(aa) 0002 %V_LPCAA2AO LPC: Convert area function to area ratios AO=(AA) 0003 0004 0005 0006 % Copyright (C) Mike Brookes 1998 0007 % Version: $Id: v_lpcaa2ao.m 10865 2018-09-21 17:22:45Z dmb $ 0008 % 0009 % VOICEBOX is a MATLAB toolbox for speech processing. 0010 % Home page: http://www.ee.ic.ac.uk/hp/staff/dmb/voicebox/voicebox.html% 0011 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 0012 % This program is free software; you can redistribute it and/or modify 0013 % it under the terms of the GNU General Public License as published by 0014 % the Free Software Foundation; either version 2 of the License, or 0015 % (at your option) any later version. 0016 % 0017 % This program is distributed in the hope that it will be useful, 0018 % but WITHOUT ANY WARRANTY; without even the implied warranty of 0019 % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 0020 % GNU General Public License for more details. 0021 % 0022 % You can obtain a copy of the GNU General Public License from 0023 % http://www.gnu.org/copyleft/gpl.html or by writing to 0024 % Free Software Foundation, Inc.,675 Mass Ave, Cambridge, MA 02139, USA. 0025 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 0026 0027 p1=size(aa,2); 0028 ao=aa(:,1:p1-1)./aa(:,2:p1);