AudioClip trouble (playing when shouldn't)

Hi there!
I’ve created a basic 3D Snake game. I’ve got a tiny problem of AudioClip. I’ve got two different sounds which normally play themselves when my snake collides with something (this works just fine). I’ve assigned them a volume which works perfectly.
My problem is that when I launch my game (with the “play” button) the two sounds play themselves (they shouldn’t) at full volume!
How can I mute or disable this?
Thanks for your replies.

Found the answer…sorry for that^^

Uncheck “Play on Awake.”