Home > voicebox > lpcaa2dl.m

lpcaa2dl

PURPOSE ^

LPCAA2DL LPC: Convert area coefficients to dct of log area DL=(AA)

SYNOPSIS ^

function dl=lpcaa2dl(aa)

DESCRIPTION ^

LPCAA2DL LPC: Convert area coefficients to dct of log area DL=(AA)

CROSS-REFERENCE INFORMATION ^

This function calls: This function is called by:

SOURCE CODE ^

0001 function dl=lpcaa2dl(aa)
0002 %LPCAA2DL LPC: Convert area coefficients to dct of log area DL=(AA)
0003 
0004 % note: we do not correct for sinc distortion; perhaps we should multiply by
0005 % k=1:p-1;s=[sqrt(0.5)/p 2*sin(pi*k/(2*p))./(pi*k)];
0006 
0007 
0008 
0009 %      Copyright (C) Mike Brookes 1998
0010 %      Version: $Id: lpcaa2dl.m 713 2011-10-16 14:45:43Z dmb $
0011 %
0012 %   VOICEBOX is a MATLAB toolbox for speech processing.
0013 %   Home page: http://www.ee.ic.ac.uk/hp/staff/dmb/voicebox/voicebox.html
0014 %
0015 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
0016 %   This program is free software; you can redistribute it and/or modify
0017 %   it under the terms of the GNU General Public License as published by
0018 %   the Free Software Foundation; either version 2 of the License, or
0019 %   (at your option) any later version.
0020 %
0021 %   This program is distributed in the hope that it will be useful,
0022 %   but WITHOUT ANY WARRANTY; without even the implied warranty of
0023 %   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
0024 %   GNU General Public License for more details.
0025 %
0026 %   You can obtain a copy of the GNU General Public License from
0027 %   http://www.gnu.org/copyleft/gpl.html or by writing to
0028 %   Free Software Foundation, Inc.,675 Mass Ave, Cambridge, MA 02139, USA.
0029 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
0030 
0031 [nf,p2]=size(aa);
0032 dl=rdct(log(aa(:,2:p2-1)./aa(:,p2*ones(1,p2-2))).').';
0033 
0034

Generated on Tue 10-Oct-2017 08:30:10 by m2html © 2003