3D Sound Max Distance Not Working.

Here is my problem... When I hit play on my scene I have a quad that shows a video and plays that videos audio. The problem is the 3D settings are not working until I change a value of the audio source inside of the editor while playing. After I do that, the 3D settings work without a problem. So I tried to do that in code, but it didn't help.

I have a quad in my scene and that quad has my script plus an audio source on it. The audio source's clip is set by my script and these are the following settings of my audio source:

AudioClip: None (I will set this later on in my script)

Mute: false

Bypass Effects: false

Bypass Listener Effects: false

Bypass Reverb Zones: false

Play On Awake : false

Loop : true

Priority: 128

3d settings

Doppler Level : 1

Volume Rolloff: Linear

Min Distance : 1

Pan Level : 1

Spread : 0

Max Distance : 3

2d settings

Pan 2D: 0

and here is my script:

 using UnityEngine;
 using System.Collections;
 
 [RequireComponent (typeof(AudioSource))]
 public class TempVideoPlayer : MonoBehaviour
 {
     public string url = "http://becunningandfulloftricks.files.wordpress.com/2013/04/hedgehog_in_the_fog.ogg";
     private MovieTexture movieTexture;
     
     // Use this for initialization
     void Start ()
     {
         // Start download
         var www = new WWW (url);
         
         // Make sure the movie is ready to start before we start playing
         movieTexture = www.movie;
         movieTexture.loop = true;
         
         StartCoroutine (CheckMovieStatus());
     }
     
     // Update is called once per frame
     void Update ()
     {
     }
     
     IEnumerator CheckMovieStatus ()
     {
         while (movieTexture.isReadyToPlay == false)
             yield return new WaitForSeconds(0.1f);
         
 
         renderer.material.mainTexture = movieTexture;
         audio.clip = movieTexture.audioClip;
         
         // Play both movie & sound
         movieTexture.Play ();
         audio.Play();
     }
 }