Play sound file if mouse or finger-touch moves?

Hello,

i want that my finger touches makes a slide sound a la Fruit Ninja when moves.
Is there a way to do this also if the user don`t leave the finger from screen?

For example what i want… the user slides to the right(play slide sound)…the User stops sliding but keeps touching(no slide sound)…the user slides again (play slide sound again)

Here is my first try in a for loop, the tmpMousePosition is stored in Awake to begin and later in every new touch.

private var sound_once : boolean = false;

function Update()
{
   for(var touch:Touch in Input.touches)
   {
       if (tmpMousePosition != touch.position){
  	   Debug.Log("Mouse moved");
  	   tmpMousePosition = touch.position;
  				
  	   slideSoundOnce();
       }
    
   if(touch.phase == TouchPhase.Ended)
      sound_once = false;

   }
}


 
function slideSoundOnce()
{
	if (sound_once == false) {
	
		GameManager_Script.audio_source2.PlayOneShot(slide_01);
		sound_once = true;
		
	}
	
}

no help in this forum anymore?