Copyright: Copyright 1998-2001 W3C (MIT, INRIA, Keio), All Rights Reserved.
See http://www.w3.org/Consortium/Legal/.
Author: M. Eric Hyche
         File Name: layout-soundLevel2.smil
  Media Components: 2 WAV
 Expected Behavior: Tests audio layout.
                    english.wav plays at normal volume, then
                    english.wav plays at 25% of normal volume, then
                    english.wav plays at 200% of normal volume.
<smil xmlns="http://www.w3.org/2001/SMIL20/Language">
            <root-layout width="680" height="480"/>
            <region id="r25"  soundLevel="25%"/>
            <region id="r100" soundLevel="100%"/>
            <region id="r200" soundLevel="200%"/>
            <audio region="r100" src="../sounds/english.wav"   dur="6s"/>
            <audio region="r25"  src="../sounds/english.wav"   dur="6s"/>
            <audio region="r200" src="../sounds/english.wav"   dur="6s"/>