# v_lpcar2im

## PURPOSE

V_LPCAR2IM Convert AR coefs to impulse response IM=(AR,NP)

## SYNOPSIS

function im=v_lpcar2im(ar,np)

## DESCRIPTION

    V_LPCAR2IM Convert AR coefs to impulse response IM=(AR,NP)

## CROSS-REFERENCE INFORMATION

This function calls:

This function is called by:

## SOURCE CODE

    0001 function im=v_lpcar2im(ar,np)
    0002 %V_LPCAR2IM Convert AR coefs to impulse response IM=(AR,NP)
    0003
    0004
    0005 %      Copyright (C) Mike Brookes 1997
    0006 %      Version: $Id: v_lpcar2im.m 10865 2018-09-21 17:22:45Z 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 Lesser General Public License as published by
    0014 %   the Free Software Foundation; either version 3 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 Lesser General Public License for more details.
    0021 %
    0022 %   You can obtain a copy of the GNU Lesser General Public License from
    0023 %   https://www.gnu.org/licenses/ .
    0024 %
    0025 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    0026
    0027 [nf,p1]=size(ar);
    0028 if nargin<2 np=p1-1; end
    0029 im=zeros(nf,np+1);
    0030 x=[1 zeros(1,np)];
    0031 for k=1:nf
    0032   im(k,:)=filter(1,ar(k,:),x);
    0033 end