Here are other open source speech recognition engine to consider, if Sphinx is not suitable.<br><a href="http://www.ece.msstate.edu/research/isip/projects/speech/index.html">http://www.ece.msstate.edu/research/isip/projects/speech/index.html</a><br>
<a href="http://julius.sourceforge.jp/en_index.php">http://julius.sourceforge.jp/en_index.php</a><br><a href="http://htk.eng.cam.ac.uk/">http://htk.eng.cam.ac.uk/</a><br clear="all"><br>-E<br>