\documentclass{ltugproc}
%\usepackage{times}
%\renewcommand{\ttdefault}{cmtt}
\usepackage[tone,extra]{tipa}
\newif\ifTUG \TUGtrue
\usepackage{tipaman}

\title{\tipa{}: a System for Processing Phonetic Symbols in \LaTeX}
\author{Fukui Rei}
\address{Department of Asian and Pacific Linguistics,
Institute of Cross-Cultural Studies,
Faculty of Letters, University of Tokyo,
Hongo 7-3-1, Bunkyo-ku, TOKYO 113 Japan}
\netaddress{fkr@tooyoo.l.u-tokyo.ac.jp}

\begin{document}
\maketitle

\input{tipaman1}
\ifTUG\bigskip\else\newpage\fi
\input{tipaman2}
\ifTUG\bigskip\else\newpage\fi
\input{tipaman3}
\ifTUG\bigskip\else\newpage\fi
\input{tipaman4}

\end{document}