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lpcss2zz

PURPOSE

LPCSS2ZZ Convert s-place poles to z-plane poles ZZ=(SS)

SYNOPSIS

function zz=lpcss2zz(ss)

DESCRIPTION

LPCSS2ZZ Convert s-place poles to z-plane poles ZZ=(SS)
the s-plane is in units of Normalized Hz and so the imaginary part
of each ss() value is in the range +-0.5

If you multiply ss by the sample frequency, a formant with
frequency f and bandwidth b will give an s-plane pole-pair
of approximately -b/2 +- j f

CROSS-REFERENCE INFORMATION

This function calls:
This function is called by:

SOURCE CODE

0001 function zz=lpcss2zz(ss)
0002 %LPCSS2ZZ Convert s-place poles to z-plane poles ZZ=(SS)
0003 %the s-plane is in units of Normalized Hz and so the imaginary part
0004 % of each ss() value is in the range +-0.5
0005 %
0006 % If you multiply ss by the sample frequency, a formant with
0007 % frequency f and bandwidth b will give an s-plane pole-pair
0008 % of approximately -b/2 +- j f
0009
0010 %      Copyright (C) Mike Brookes 1997
0011 %      Version: \$Id: lpcss2zz.m 8210 2016-07-20 20:58:39Z dmb \$
0012 %
0013 %   VOICEBOX is a MATLAB toolbox for speech processing.
0015 %
0016 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
0017 %   This program is free software; you can redistribute it and/or modify
0019 %   the Free Software Foundation; either version 2 of the License, or
0020 %   (at your option) any later version.
0021 %
0022 %   This program is distributed in the hope that it will be useful,
0023 %   but WITHOUT ANY WARRANTY; without even the implied warranty of
0024 %   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
0025 %   GNU General Public License for more details.
0026 %
0027 %   You can obtain a copy of the GNU General Public License from
0028 %   http://www.gnu.org/copyleft/gpl.html or by writing to
0029 %   Free Software Foundation, Inc.,675 Mass Ave, Cambridge, MA 02139, USA.
0030 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
0031
0032 zz=exp(2*pi*ss);

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