Play and stop sounds on enter and exit frames - AS3

[dumbari]

Hi there,

I would like to have a sound file play when the playhead reaches a frame and then stop when the playhead moves to another frame.

This is the code I currrently have in the frame to play my sound (sound_1) - works fine, no problems...

var mySound:Sound = new sound_1();
mySound.play();

What do I need to add, to have the sound stop, when the playhead exits that frame.

Any help is much appreciated.

Thanks