I'm fairly new with hammer but i want to make portal mod for my graduation project, and therefore i'm now experimenting a lot with hammer.
All i wanted to do is when i activate a button, a sound strarts to play.
I followed this tutorial https://www.youtube.com/watch?v=OInSauhy33M which is pretty much explainatory but when i activate the button i get nothing... Not even an error. The weird thing is that if i press play in Object Properties the track works.
What am i doing wrong?
Please help me 
Yori
