Home > voicebox > lpcpp2pz.m

# lpcpp2pz

## PURPOSE

LPCPP2PZ LPC: Convert power spectrum polynomial in cos(w) to power spectrum zeros PZ=(RP)

## SYNOPSIS

function pz=lpcpp2pz(pp)

## DESCRIPTION

```LPCPP2PZ LPC: Convert power spectrum polynomial in cos(w) to power spectrum zeros PZ=(RP)
pp is a polynomial such that |polyval(ra,e^jw)| = polyval(pp,cos(w))```

## CROSS-REFERENCE INFORMATION

This function calls:
This function is called by:

## SOURCE CODE

```0001 function pz=lpcpp2pz(pp)
0002 %LPCPP2PZ LPC: Convert power spectrum polynomial in cos(w) to power spectrum zeros PZ=(RP)
0003 % pp is a polynomial such that |polyval(ra,e^jw)| = polyval(pp,cos(w))
0004
0005 %      Copyright (C) Mike Brookes 1998
0006 %      Version: \$Id: lpcpp2pz.m 713 2011-10-16 14:45:43Z dmb \$
0007 %
0008 %   VOICEBOX is a MATLAB toolbox for speech processing.
0010 %
0011 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
0012 %   This program is free software; you can redistribute it and/or modify
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 pz=roots(pp);```

Generated on Mon 06-Aug-2018 14:48:32 by m2html © 2003