Test

using UnityEngine;
using System.Collections;

public class DestroyCubes : MonoBehaviour
{
public AudioClip zvuk;

void Start()
{

 GetComponent<AudioSource>().clip = zvuk;

}

    void OnCollisionEnter (Collision col)
    {
        if(col.gameObject.name == "floor")
        {

         GetComponent<AudioSource>().Play ();

        }
    }
}