audio.PlayOneShot Not Working!

Questions & Answers
1

I have programmed in my game that when you pick up a paper it disappears, shows a quick GUI and plays an audio clip of a page turning. The script itself seems to be working properly, but when the audio clip plays it sounds like a knife being sharpened on a rock more than the sound of a page turning! Here is my script, if any body could explain this and leave a possible solution that would be great! Thanks!

var objective1 : boolean = false;
var objective2 : boolean = false;
var objective3 : boolean = false;
var objective4 : boolean = false;
var objective5 : boolean = false;

var texture1 : Texture;
var texture2 : Texture;
var texture3 : Texture;
var texture4 : Texture;
var texture5 : Texture;

var audio1 : AudioClip;


function OnGUI()
{
	if(objective1 == true)
	{
		GUI.DrawTexture(Rect(800,100, 300,512), texture1);
		objectivedis1();
		audio.PlayOneShot(audio1);
	}
	
	if(objective2 == true)
	{
		GUI.DrawTexture(Rect(10,10, 750,150), texture2);
	}
	
	if(objective3 == true)
	{
		GUI.DrawTexture(Rect(10,10, 750,150), texture3);
	}
	
	if(objective4 == true)
	{
		GUI.DrawTexture(Rect(10,10, 750,150), texture4);
	}
	
	if(objective5 == true)
	{
		GUI.DrawTexture(Rect(10,10, 750,150), texture5);
	}
}

function objectivedis1()
{
	yield WaitForSeconds (3);
 	objective1 = false;
}
2

OnGUI runs many times per second, so when objective 1 is true it will call that line many many times, thus you are getting that sound (which is many instances of that clip played at nearly the same time).