when cube hit wall

Hello,

I'm totally new on unity. I have sound source and my question is how can I play that sound when my cube hit a wall?

I tried something like this, but it doesn't work.

usingUnityEngine;
usingSystem.Collections;

public class sound : MonoBehaviour {

voidOnTriggerEnter (Colliderother)
{
if(other.gameObject.tag == "wall")
{

Audio.PlayOneShot(sound);

}

}
}

 

This should not be in the audio section but you would use OnCollisionEnter instead of OnTriggerEnter.