Objective: Play a sound effect when the user mouses down on the HSlider. Stop or pause the sound when the user mousses up. The following code starts the sound but a mouseup does not stop it.
<mx:SoundEffect id="soundEffectSong" useDuration="false" source="http://www.helpexamples.com/flash/sound/song1.mp3"/>
<mx:Form x="10" y="39" width="454" height="452">
<mx:FormItem label="Age">
<mx:HSlider id="ageSlider" allowTrackClick="true" minimum="1" maximum="100" snapInterval="1" liveDragging="true" value="1" mouseDownEffect="{soundEffectSong}" mouseUpEffect="{soundEffectSong.pause()}"/>
</mx:FormItem>
</mx:Form>