Delay before playing audio files

[GoogleCodeExporter]

A user on Windows noticed that there's a delay before audio files play in her 
sequence.  She had a dog robot, which barked three times in a counter loop.  
When you play the sequence for the first time, you would only hear one bark.  
Play it again, and you'd hear all three.  Wait a few minutes, play the 
sequence, and hear one bark.  Play it again, and you hear three.  Maybe slow to 
start the audio system?  Or maybe it's a delay in reading the audio file plus 
garbage collection?  

Original issue reported on code.google.com by garthabr...@gmail.com on 18 Apr 2013 at 7:47

I believe this was also fixed in revamping the audio playing in the BirdBrainDev Branch