Timing Sound

Hello…

I have Flash 5

I have a .WAV file I would like to to have play every 1.5 seconds as long as frame 1 is active.
I tried looping it, but it plays much to fast.
Is there any way that this could be done in AS and if so, what would the code look like?
The name of the .WAV file is “duck2.wav”.

Thanks in advance

P.S.
Here is the FLA