Collision sound in Breakout clone

Hey guys

I've worked through the Breakout clone tutorial project and am now playing with adding sounds to the game.

I have a bounce sound used when the ball hits the paddle. It seems to be playing more than once when the ball hits the paddle - i.e. so often it's almost a buzzing sound. I suspect this is because the ball hitting the paddle isn't a discrete event, because it's triggered on overlap:

http://imgur.com/IKKGo

Is there a way to make the sound only play once? Maybe some sort of delay to restrict how soon after the sound plays that it can play again?

Cheers

Lucas

You want the System Trigger once condition.

Ball: Is overlapping Paddle

System: Trigger once

    Play sound

Thanks :)