SoundController.SoundManager.GetAmbientSound C# (CSharp) Method

        public AudioClip GetAmbientSound(int index)
        {
            return NullTest(ambience, index);
        }

 // Use this for initialization
 void Start()
 {
     _soundManager = GameObject.Find ("SoundManager").GetComponent<SoundManager> ();
     ambTrack= _soundManager.GetAmbientSound(ambientIndex);
 }