\documentclass{article}
\usepackage{docassembly}
\usepackage{eforms}
%\usepackage{lipsum}

\hypersetup{pdfpagemode=UseNone}

% Look in the Adobe Acrobat JavaScript manual under the doc.importSound to see all the possible parameters.
\begin{docassembly}
\importSound({cName: "StarTrek", cDIPath: "sounds/trek.wav" });
\executeSave();
\end{docassembly}

\begin{document}


\begin{center}
\pushButton[\CA{Star Trek}\S{S}\W{0}\AAmouseup{%
    var s = this.getSound("StarTrek");\r
    s.play();
}]{stSound}{}{11bp}

\end{center}
\end{document} 