LPCLO2RF Convert log area ratios to reflection coefficients RF=(LO)

0001 function rf=lpclo2rf(lo) 0002 %LPCLO2RF Convert log area ratios to reflection coefficients RF=(LO) 0003 0004 0005 % Copyright (C) Mike Brookes 1997 0006 % Version: $Id: lpclo2rf.m 713 2011-10-16 14:45:43Z dmb $ 0007 % 0008 % VOICEBOX is a MATLAB toolbox for speech processing. 0009 % Home page: http://www.ee.ic.ac.uk/hp/staff/dmb/voicebox/voicebox.html 0010 % 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 rf=-tanh(lo/2); 0028

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