Problem with my soundChannel. (sounds keeps adding)

Here’s my code

I have a working code. That plays a sound. And then when the sound is done playing. it makes another event happen.

But, when i activate te sound again. It keeps getting louder and louder everytime its activated. (so my guess is that i’m loading the sound multiple times? and thats why it keeps getting louder)
Here’s the code (minus the playStart(); function wich is onder a button.)

[COLOR=Red]edit: smaller code in the post below[/COLOR]