Reply to Can i get Some Help Please?

Ok so i Got The Novation Launchpad controller recently and im new to this , i downloaded a couple soundpacks from Mad Zach but i noticed that if i let go of the button i set up the sound to it doesn't stop the audio automaticaly like in others videos on it ... how could i set it up to do that? .... Please make your little tut as easy to understand as possible or just link me to another page with the answer but please help me !