Sound plays with step js script

I have found this script for bobbing the FPS head somewhere here in answer, I tried to add a little if cycle to have a little step sound I have every time this bobbing is at his minimum, but I can't make it work for some reason. The little debug log is never activated, even if I slow down the bobbing in order to easily stop at 1.60 or I make edit the value in 1.61, 1.62 or even 1.65 (which is the starting y position).

 var bobbingSpeed: float = 1.5;  
 var bobbingDir: Vector3 = Vector3(0, 0.5, 0); 
 private var initPos: Vector3;
 private var bobTime: float = 0.1;
 private var TWOPI = Mathf.PI*2;
 
 function Start(){
     initPos = transform.localPosition;
 }
 
 function Update(){
     var axes = Vector2(Input.GetAxis("Horizontal"), Input.GetAxis("Vertical"));
     if (axes.magnitude>0.01){
         bobTime += Time.deltaTime*bobbingSpeed;
         movement = transform.TransformDirection(bobbingDir)*Mathf.Sin(TWOPI*bobTime);
         transform.localPosition = initPos+movement;
     }
     if (transform.position.y==1.60)
         {
         Debug.Log ("bugger");
         audio.Play();
         }
 }