I'm talking about the original files.
Don't except that sounds will play on browsers the same as audio software's.
I have more than 50 sounds on my game and some times the sound loop perfectly in the audio software but in the Html 5 it's not looping seamless.
I've tried this event in your capx and it works fine :
On mouse released ----- set sound mute
--------------------------------- wait 0.1
-------------------------------- stop sound